fix device call prioritize call to registered client first

2026-02-08 04:52:35 +00:00 · 2023-10-23 13:50:37 +07:00
74 changed files with 8899 additions and 12591 deletions
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,17 +6,12 @@ jobs:
  build:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
        with:
-          node-version: 20
+          node-version: 18
      - run: npm ci
      - run: npm run jslint
-      - name: Install Docker Compose
-        run: |
-          sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
-          sudo chmod +x /usr/local/bin/docker-compose
-          docker-compose --version
      - run: docker pull drachtio/sipp
      - run: npm test
        env:
--- a/.gitignore
+++ b/.gitignore
@@ -42,5 +42,3 @@ ecosystem.config.js
 test/credentials/*.json
 run-tests.sh
 run-coverage.sh
-.vscode
-.env
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -0,0 +1,17 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Launch Program",
+      "program": "${workspaceFolder}/test/index.js",
+      "env": {
+        "NODE_ENV": "test"
+      }
+    }
+  ]
+}
--- a/2
+++ b/2
@@ -1,4 +1,4 @@
-FROM --platform=linux/amd64 node:20-alpine as base
+FROM --platform=linux/amd64 node:18.15-alpine3.16 as base

 RUN apk --update --no-cache add --virtual .builds-deps build-base python3

--- a/2
+++ b/2
@@ -1,6 +1,6 @@
 MIT License

-Copyright (c) 2018-2024 FirstFive8, Inc.
+Copyright (c) 2021 Drachtio Communications Services, LLC

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# jambonz-feature-server [![CI](https://github.com/jambonz/jambonz-feature-server/actions/workflows/build.yml/badge.svg)](https://github.com/jambonz/jambonz-feature-server/actions/workflows/build.yml)
+# jambonz-feature-server ![Build Status](https://github.com/jambonz/jambonz-feature-server/workflows/CI/badge.svg)

 This application implements the core feature server of the jambones platform.

@@ -21,7 +21,6 @@ Configuration is provided via environment variables:
 |ENCRYPTION_SECRET| secret for credential encryption(JWT_SECRET is deprecated) |yes|
 |GOOGLE_APPLICATION_CREDENTIALS| path to gcp service key file|yes|
 |HTTP_PORT| tcp port to listen on for API requests from jambonz-api-server|yes|
-|HTTP_IP| IP Address for API requests from jambonz-api-server |no|
 |JAMBONES_GATHER_EARLY_HINTS_MATCH| if true and hints are provided, gather will opportunistically review interim transcripts if possible to reduce ASR latency |no|
 |JAMBONES_FREESWITCH| IP:port:secret for Freeswitch server (e.g. '127.0.0.1:8021:JambonzR0ck$'|yes|
 |JAMBONES_LOGLEVEL| log level for application, 'info' or 'debug'|no|
@@ -41,8 +40,6 @@ Configuration is provided via environment variables:
 |JAMBONZ_RECORD_WS_BASE_URL| recording websocket URL to send the recording audio|no|
 |JAMBONZ_RECORD_WS_USERNAME| recording websocket username|no|
 |JAMBONZ_RECORD_WS_PASSWORD| recording websocket password|no|
-|ANCHOR_MEDIA_ALWAYS| keep media on media server|no|
-|JAMBONZ_DISABLE_DIAL_PAI_HEADER| control P-Asserted-Identity header on B-Leg|no|

 ### running under pm2
 Typically, this application runs under [pm2](https://pm2.io) using an [ecosystem.config.js](https://pm2.keymetrics.io/docs/usage/application-declaration/) file similar to this:
--- a/app.js
+++ b/app.js
@@ -25,22 +25,10 @@ const opts = {
 };
 const pino = require('pino');
 const logger = pino(opts, pino.destination({sync: false}));
-const {LifeCycleEvents, FS_UUID_SET_NAME, SystemState, FEATURE_SERVER} = require('./lib/utils/constants');
+const {LifeCycleEvents, FS_UUID_SET_NAME} = require('./lib/utils/constants');
 const installSrfLocals = require('./lib/utils/install-srf-locals');
 installSrfLocals(srf, logger);

-const writeSystemAlerts = srf.locals?.writeSystemAlerts;
-if (writeSystemAlerts) {
-  writeSystemAlerts({
-    system_component: FEATURE_SERVER,
-    state : SystemState.Online,
-    fields : {
-      detail: `feature-server with process_id ${process.pid} started`,
-      host: srf.locals?.ipv4
-    }
-  });
-}
-
 const {
  initLocals,
  createRootSpan,
@@ -112,20 +100,8 @@ createHttpListener(logger, srf)
  });


-const monInterval = setInterval(async() => {
+setInterval(() => {
  srf.locals.stats.gauge('fs.sip.calls.count', sessionTracker.count);
-  try {
-    const systemInformation = await srf.locals.dbHelpers.lookupSystemInformation();
-    if (systemInformation && systemInformation.log_level) {
-      logger.level = systemInformation.log_level;
-    }
-  } catch (err) {
-    if (process.env.NODE_ENV === 'test') {
-      clearInterval(monInterval);
-      logger.error('all tests complete');
-    }
-    else logger.error({err}, 'Error checking system log level in database');
-  }
 }, 20000);

 const disconnect = () => {
@@ -133,28 +109,16 @@ const disconnect = () => {
    httpServer?.on('close', resolve);
    httpServer?.close();
    srf.disconnect();
-    srf.locals.mediaservers?.forEach((ms) => ms.disconnect());
+    srf.locals.mediaservers.forEach((ms) => ms.disconnect());
  });
 };
-process.on('SIGTERM', handle);
-process.on('SIGINT', handle);

-async function handle(signal) {
+process.on('SIGTERM', handle);
+
+function handle(signal) {
  const {removeFromSet} = srf.locals.dbHelpers;
  srf.locals.disabled = true;
  logger.info(`got signal ${signal}`);
-  const writeSystemAlerts = srf.locals?.writeSystemAlerts;
-  if (writeSystemAlerts) {
-    // it has to be synchronous call, or else by the time system saves the app terminates
-    await writeSystemAlerts({
-      system_component: FEATURE_SERVER,
-      state : SystemState.Offline,
-      fields : {
-        detail: `feature-server with process_id ${process.pid} stopped, signal ${signal}`,
-        host: srf.locals?.ipv4
-      }
-    });
-  }
  const setName = `${(JAMBONES_CLUSTER_ID || 'default')}:active-fs`;
  const fsServiceUrlSetName = `${(JAMBONES_CLUSTER_ID || 'default')}:fs-service-url`;
  if (setName && srf.locals.localSipAddress) {
--- a/bin/k8s-pre-stop-hook.js
+++ b/bin/k8s-pre-stop-hook.js
--- a/data/example-voicemail-greetings.json
+++ b/data/example-voicemail-greetings.json
@@ -9,112 +9,7 @@
    "can't take your call",
    "will get back to you",
    "I'll get back to you",
-    "we are unable",
-    "Unable to take your call now",
-    "I'll reply soon",
-    "I'll call back",
-    "I'll reach out to you as soon as possible",
-    "Leave a message",
-    "Away from phone",
-    "Not available now",
-    "I'll return call",
-    "On another call",
-    "Currently on another call",
-    "I will return call later",
-    "Busy please leave message",
-    "Message will be returned promptly",
-    "Currently unavailable to answer",
-    "Planning to return your call soon",
-    "Apologies for missing your call",
-    "Not by the phone at the moment",
-    "Expecting to return your call",
-    "Currently not accessible",
-    "Intend to call back",
-    "Appreciate your patience!",
-    "Engaged in another conversation",
-    "I Will respond promptly",
-    "Kindly leave a message",
-    "Currently occupied leave a message",
-    "Unfortunately unable to answer right now",
-    "Occupied at the moment",
-    "Not present leave a message",
-    "Regrettably unavailable kindly leave a message",
-    "Will ensure a prompt response to your message",
-    "Currently engaged",
-    "Will return your call at the earliest opportunity",
-    "Your message will receive my prompt attention",
-    "I'll respond as soon as I can",
-    "Your message is important please leave it after the beep",
-    "Away from the phone at the moment",
-    "Unable to answer right now",
-    "Engaged in another task",
-    "Not by the phone presently",
-    "I'll respond at my earliest convenience",
-    "Away from the phone momentarily",
-    "I'll return your call shortly",
-    "Currently not able to answer",
-    "Your message is important please leave it after the tone",
-    "I'm unable to take your call right now",
-    "Please leave your message for me",
-    "I'll get back to you soon",
-    "Your call has been missed",
-    "Please leave a detailed message for me to respond to",
-    "Leave a message I'll make sure to respond",
-    "Feel free to leave a message",
-    "Your call is important to me",
-    "I'll get back to you shortly",
-    "Your message will be attended to promptly",
-    "Not available at the moment",
-    "I'll be sure to get back to you",
-    "I'll call you back soon",
-    "I'll ensure a prompt response",
-    "Sorry for the inconvenience",
-    "I'll return your call",
-    "I'll make sure to get back to you",
-    "I'll call you back shortly",
-    "I'll return your call as soon as possible",
-    "Apologies for the inconvenience leave your message",
-    "Your call is appreciated",
-    "I'm unavailable to answer",
-    "I'm currently away",
-    "I'll return your call as soon as I can",
-    "I'm away from the phone",
-    "I'm currently unavailable to take your call",
-    "Sorry for missing your call",
-    "I'll ensure it receives my immediate attention",
-    "I'm away from the phone momentarily",
-    "I'll reach out to you shortly",
-    "Apologies for the inconvenience",
-    "Currently occupied",
-    "Unable to answer your call at the moment",
-    "I'll make sure to follow up with you",
-    "Sorry for not being available",
-    "I'll reach out to you as soon as I can",
-    "I'm currently engaged",
-    "I'm currently busy",
-    "I'm currently unavailable",
-    "I'll respond to you at my earliest convenience",
-    "Your message is appreciated",
-    "I'll get back to you promptly",
-    "I'll get back to you without delay",
-    "Currently away from the phone",
-    "I'll return your call at my earliest opportunity",
-    "Sorry for the missed call",
-    "I'll make sure to address your concerns",
-    "Please provide your details for a callback",
-    "I'll make every effort to respond promptly",
-    "I'll ensure it's attended to promptly",
-    "Away from the phone temporarily",
-    "I'll get back to you as soon as I return",
-    "Currently not in a position to answer your call",
-    "Your call cannot be answered at the moment",
-    "I'll ensure to respond as soon as I'm able",
-    "Your call is important please leave a message",
-    "Unable to answer right now please leave your message",
-    "Currently not accessible intending to return your call",
-    "I'll respond promptly to your message",
-    "leave a memo",
-    "please leave a memo"
+    "we are unable"
  ],
  "es-ES": [
    "le pasamos la llamada",
--- a/docs/contributing.md
+++ b/docs/contributing.md
@@ -45,7 +45,7 @@ The GCP credential is the JSON service key in stringified format.

 #### Install Docker

-The test suite also requires [Docker](https://www.docker.com/) and docker-compose to be installed on your laptop.  Docker is used to set up a network with all of the elements required to test the jambonz-feature-server in a black-box type of fashion.
+The test suite ralso equires [Docker](https://www.docker.com/) and docker-compose to be installed on your laptop.  Docker is used to set up a network with all of the elements required to test the jambonz-feature-server in a black-box type of fashion.

 Once you have docker installed, you can optionally make sure everything Docker-wise is working properly by running this command from the project folder:

--- a/lib/config.js
+++ b/lib/config.js
@@ -28,6 +28,10 @@ const JAMBONES_MYSQL_PORT = parseInt(process.env.JAMBONES_MYSQL_PORT, 10) || 330
 const JAMBONES_MYSQL_REFRESH_TTL = parseInt(process.env.JAMBONES_MYSQL_REFRESH_TTL, 10) || 0;
 const JAMBONES_MYSQL_CONNECTION_LIMIT = parseInt(process.env.JAMBONES_MYSQL_CONNECTION_LIMIT, 10) || 10;

+/* redis */
+const JAMBONES_REDIS_HOST = process.env.JAMBONES_REDIS_HOST;
+const JAMBONES_REDIS_PORT = parseInt(process.env.JAMBONES_REDIS_PORT, 10) || 6379;
+
 /* gather and hints */
 const JAMBONES_GATHER_EARLY_HINTS_MATCH = process.env.JAMBONES_GATHER_EARLY_HINTS_MATCH;
 const JAMBONZ_GATHER_EARLY_HINTS_MATCH = process.env.JAMBONZ_GATHER_EARLY_HINTS_MATCH;
@@ -73,7 +77,6 @@ const JAMBONES_LOGLEVEL = process.env.JAMBONES_LOGLEVEL || 'info';
 const JAMBONES_INJECT_CONTENT = process.env.JAMBONES_INJECT_CONTENT;

 const PORT = parseInt(process.env.HTTP_PORT, 10) || 3000;
-const HTTP_IP = process.env.HTTP_IP;
 const HTTP_PORT_MAX = parseInt(process.env.HTTP_PORT_MAX, 10);

 const K8S = process.env.K8S;
@@ -108,8 +111,6 @@ const DEEPGRAM_API_KEY = process.env.DEEPGRAM_API_KEY;
 const ANCHOR_MEDIA_ALWAYS = process.env.ANCHOR_MEDIA_ALWAYS;
 const VMD_HINTS_FILE = process.env.VMD_HINTS_FILE;

-const JAMBONES_AWS_TRANSCRIBE_USE_GRPC = process.env.JAMBONES_AWS_TRANSCRIBE_USE_GRPC;
-
 /* security, secrets */
 const LEGACY_CRYPTO = !!process.env.LEGACY_CRYPTO;
 const JWT_SECRET = process.env.JWT_SECRET;
@@ -123,22 +124,33 @@ const HTTP_TIMEOUT = 10000;
 const HTTP_PROXY_IP = process.env.JAMBONES_HTTP_PROXY_IP;
 const HTTP_PROXY_PORT = process.env.JAMBONES_HTTP_PROXY_PORT;
 const HTTP_PROXY_PROTOCOL = process.env.JAMBONES_HTTP_PROXY_PROTOCOL || 'http';
-const HTTP_USER_AGENT_HEADER = process.env.JAMBONES_HTTP_USER_AGENT_HEADER || 'jambonz';

 const OPTIONS_PING_INTERVAL = parseInt(process.env.OPTIONS_PING_INTERVAL, 10) || 30000;

+const JAMBONES_REDIS_SENTINELS = process.env.JAMBONES_REDIS_SENTINELS ? {
+  sentinels: process.env.JAMBONES_REDIS_SENTINELS.split(',').map((sentinel) => {
+    let host, port = 26379;
+    if (sentinel.includes(':')) {
+      const arr = sentinel.split(':');
+      host = arr[0];
+      port = parseInt(arr[1], 10);
+    } else {
+      host = sentinel;
+    }
+    return {host, port};
+  }),
+  name: process.env.JAMBONES_REDIS_SENTINEL_MASTER_NAME,
+  ...(process.env.JAMBONES_REDIS_SENTINEL_PASSWORD && {
+    password: process.env.JAMBONES_REDIS_SENTINEL_PASSWORD
+  }),
+  ...(process.env.JAMBONES_REDIS_SENTINEL_USERNAME && {
+    username: process.env.JAMBONES_REDIS_SENTINEL_USERNAME
+  })
+} : null;
 const JAMBONZ_RECORD_WS_BASE_URL = process.env.JAMBONZ_RECORD_WS_BASE_URL || process.env.JAMBONES_RECORD_WS_BASE_URL;
 const JAMBONZ_RECORD_WS_USERNAME = process.env.JAMBONZ_RECORD_WS_USERNAME || process.env.JAMBONES_RECORD_WS_USERNAME;
 const JAMBONZ_RECORD_WS_PASSWORD = process.env.JAMBONZ_RECORD_WS_PASSWORD || process.env.JAMBONES_RECORD_WS_PASSWORD;
 const JAMBONZ_DISABLE_DIAL_PAI_HEADER = process.env.JAMBONZ_DISABLE_DIAL_PAI_HEADER || false;
-const JAMBONES_DISABLE_DIRECT_P2P_CALL = process.env.JAMBONES_DISABLE_DIRECT_P2P_CALL || false;
-
-const JAMBONES_EAGERLY_PRE_CACHE_AUDIO = parseInt(process.env.JAMBONES_EAGERLY_PRE_CACHE_AUDIO, 10) || 0;
-
-const JAMBONES_USE_FREESWITCH_TIMER_FD = process.env.JAMBONES_USE_FREESWITCH_TIMER_FD;
-const JAMBONES_DIAL_SBC_FOR_REGISTERED_USER = process.env.JAMBONES_DIAL_SBC_FOR_REGISTERED_USER || false;
-const JAMBONES_MEDIA_TIMEOUT_MS = process.env.JAMBONES_MEDIA_TIMEOUT_MS || 0;
-const JAMBONES_MEDIA_HOLD_TIMEOUT_MS = process.env.JAMBONES_MEDIA_HOLD_TIMEOUT_MS || 0;

 module.exports = {
  JAMBONES_MYSQL_HOST,
@@ -157,12 +169,14 @@ module.exports = {
  JAMBONZ_GATHER_EARLY_HINTS_MATCH,
  JAMBONES_GATHER_CLEAR_GLOBAL_HINTS_ON_EMPTY_HINTS,
  JAMBONES_FREESWITCH,
+  JAMBONES_REDIS_HOST,
+  JAMBONES_REDIS_PORT,
+  JAMBONES_REDIS_SENTINELS,
  SMPP_URL,
  JAMBONES_NETWORK_CIDR,
  JAMBONES_API_BASE_URL,
  JAMBONES_TIME_SERIES_HOST,
  JAMBONES_INJECT_CONTENT,
-  JAMBONES_EAGERLY_PRE_CACHE_AUDIO,
  JAMBONES_ESL_LISTEN_ADDRESS,
  JAMBONES_SBCS,
  JAMBONES_OTEL_ENABLED,
@@ -176,7 +190,6 @@ module.exports = {
  JAMBONES_CLUSTER_ID,
  PORT,
  HTTP_PORT_MAX,
-  HTTP_IP,
  K8S,
  K8S_SBC_SIP_SERVICE_NAME,
  JAMBONES_SUBNET,
@@ -195,7 +208,6 @@ module.exports = {
  ANCHOR_MEDIA_ALWAYS,
  VMD_HINTS_FILE,
  JAMBONES_FREESWITCH_MAX_CALL_DURATION_MINS,
-  JAMBONES_AWS_TRANSCRIBE_USE_GRPC,

  LEGACY_CRYPTO,
  JWT_SECRET,
@@ -207,7 +219,6 @@ module.exports = {
  HTTP_PROXY_IP,
  HTTP_PROXY_PORT,
  HTTP_PROXY_PROTOCOL,
-  HTTP_USER_AGENT_HEADER,
  OPTIONS_PING_INTERVAL,
  RESPONSE_TIMEOUT_MS,
  JAMBONES_WS_HANDSHAKE_TIMEOUT_MS,
@@ -222,10 +233,5 @@ module.exports = {
  JAMBONZ_RECORD_WS_BASE_URL,
  JAMBONZ_RECORD_WS_USERNAME,
  JAMBONZ_RECORD_WS_PASSWORD,
-  JAMBONZ_DISABLE_DIAL_PAI_HEADER,
-  JAMBONES_DISABLE_DIRECT_P2P_CALL,
-  JAMBONES_USE_FREESWITCH_TIMER_FD,
-  JAMBONES_DIAL_SBC_FOR_REGISTERED_USER,
-  JAMBONES_MEDIA_TIMEOUT_MS,
-  JAMBONES_MEDIA_HOLD_TIMEOUT_MS
+  JAMBONZ_DISABLE_DIAL_PAI_HEADER
 };
--- a/lib/dynamic-apps.js
+++ b/lib/dynamic-apps.js
@@ -1,69 +0,0 @@
-const appsMap = {
-  queue: {
-    // Dummy hook to follow later feature server logic.
-    call_hook: {
-      url: 'https://jambonz.org',
-      method: 'GET'
-    },
-    account_sid: '',
-    app_json: [{
-      verb: 'dequeue',
-      name: '',
-      timeout: 5
-    }]
-  },
-  user: {
-    // Dummy hook to follow later feature server logic.
-    call_hook: {
-      url: 'https://jambonz.org',
-      method: 'GET'
-    },
-    account_sid: '',
-    app_json: [{
-      verb: 'dial',
-      callerId: '',
-      answerOnBridge: true,
-      target: [
-        {
-          type: 'user',
-          name: ''
-        }
-      ]
-    }]
-  },
-  conference: {
-    // Dummy hook to follow later feature server logic.
-    call_hook: {
-      url: 'https://jambonz.org',
-      method: 'GET'
-    },
-    account_sid: '',
-    app_json: [{
-      verb: 'conference',
-      name: '',
-      beep: false,
-      startConferenceOnEnter: true
-    }]
-  }
-};
-
-const createJambonzApp = (type, {account_sid, name, caller_id}) => {
-  const app = {...appsMap[type]};
-  app.account_sid = account_sid;
-  switch (type) {
-    case 'queue':
-    case 'conference':
-      app.app_json[0].name = name;
-      break;
-    case 'user':
-      app.app_json[0].callerId = caller_id;
-      app.app_json[0].target[0].name = name;
-      break;
-  }
-  app.app_json = JSON.stringify(app.app_json);
-  return app;
-};
-
-module.exports = {
-  createJambonzApp
-};
--- a/lib/http-routes/api/create-call.js
+++ b/lib/http-routes/api/create-call.js
@@ -5,7 +5,7 @@ const CallInfo = require('../../session/call-info');
 const {CallDirection, CallStatus} = require('../../utils/constants');
 const uuidv4 = require('uuid-random');
 const SipError = require('drachtio-srf').SipError;
-const { validationResult, body } = require('express-validator');
+const { validationResult } = require('express-validator');
 const { validate } = require('@jambonz/verb-specifications');
 const sysError = require('./error');
 const HttpRequestor = require('../../utils/http-requestor');
@@ -13,32 +13,16 @@ const WsRequestor = require('../../utils/ws-requestor');
 const RootSpan = require('../../utils/call-tracer');
 const dbUtils = require('../../utils/db-utils');
 const { mergeSdpMedia, extractSdpMedia } = require('../../utils/sdp-utils');
-const { createCallSchema, customSanitizeFunction } = require('../schemas/create-call');
-const { selectHostPort } = require('../../utils/network');
-const { JAMBONES_DIAL_SBC_FOR_REGISTERED_USER } = require('../../config');
-
-const removeNullProperties = (obj) => (Object.keys(obj).forEach((key) => obj[key] === null && delete obj[key]), obj);
-const removeNulls = (req, res, next) => {
-  req.body = removeNullProperties(req.body);
-  next();
-};
+const { createCallSchema } = require('../schemas/create-call');

 router.post('/',
-  removeNulls,
  createCallSchema,
-  body('tag').custom((value) => {
-    if (value) {
-      customSanitizeFunction(value);
-    }
-    return true;
-  }),
  async(req, res) => {
-    const {logger} = req.app.locals;
    const errors = validationResult(req);
    if (!errors.isEmpty()) {
-      logger.info({errors: errors.array()}, 'POST /Calls: validation errors');
      return res.status(400).json({ errors: errors.array() });
    }
+    const {logger} = req.app.locals;
    const accountSid = req.body.account_sid;
    const {srf} = require('../../..');

@@ -67,7 +51,7 @@ router.post('/',
        lookupAppBySid
      }  = srf.locals.dbHelpers;
      const {getSBC, getFreeswitch} = srf.locals;
-      let sbcAddress = getSBC();
+      const sbcAddress = getSBC();
      if (!sbcAddress) throw new Error('no available SBCs for outbound call creation');
      const target = restDial.to;
      const opts = {
@@ -99,8 +83,7 @@ router.post('/',
        'X-Trace-ID': rootSpan.traceId,
        ...(req.body?.application_sid && {'X-Application-Sid': req.body.application_sid}),
        ...(restDial.fromHost && {'X-Preferred-From-Host': restDial.fromHost}),
-        ...(record_all_calls && {'X-Record-All-Calls': recordOutputFormat}),
-        ...target.headers
+        ...(record_all_calls && {'X-Record-All-Calls': recordOutputFormat})
      };

      switch (target.type) {
@@ -142,16 +125,6 @@ router.post('/',
        }
      }

-      // find handling sbc sip for called user
-      if (JAMBONES_DIAL_SBC_FOR_REGISTERED_USER && target.type === 'user') {
-        const { registrar }  = srf.locals.dbHelpers;
-        const reg = await registrar.query(target.name);
-        if (reg) {
-          sbcAddress = selectHostPort(logger, reg.sbcAddress, 'tcp')[1];
-        }
-        //sbc outbound return 404 Notfound to handle case called user is not reigstered.
-      }
-
      /**
     * trunk isn't specified,
     * check if from-number matches any existing numbers on Jambonz
@@ -208,13 +181,10 @@ router.post('/',

      /**
     * create our application object -
-     * we merge the inbound call application,
-     * with the provided app params from the request body
+     * not from the database as per an inbound call,
+     * but from the provided params in the request
     */
-      const app = {
-        ...application,
-        ...req.body
-      };
+      const app = req.body;

      /**
     * attach our requestor and notifier objects
@@ -234,7 +204,7 @@ router.post('/',
      }
      if (!app.notifier && app.call_status_hook) {
        app.notifier = new HttpRequestor(logger, account.account_sid, app.call_status_hook, account.webhook_secret);
-        logger.debug({call_status_hook: app.call_status_hook}, 'creating http client for call status hook');
+        logger.debug({call_hook: app.call_hook}, 'creating http client for call status hook');
      }
      else if (!app.notifier) {
        logger.debug('creating null call status hook');
@@ -273,8 +243,6 @@ router.post('/',
              callId: inviteReq.get('Call-ID'),
              accountSid,
              traceId: rootSpan.traceId
-            }, {
-              ...(account.enable_debug_log && {level: 'debug'})
            });
            app.requestor.logger = app.notifier.logger = sipLogger;
            const callInfo = new CallInfo({
@@ -308,8 +276,6 @@ router.post('/',
          },
          cbProvisional: (prov) => {
            const callStatus = prov.body ? CallStatus.EarlyMedia : CallStatus.Ringing;
-            // Update call-id for sbc outbound INVITE
-            cs.callInfo.sbcCallid = prov.get('X-CID');
            if ([180, 183].includes(prov.status) && prov.body) connectStream(prov.body);
            restDial.emit('callStatus', prov.status, !!prov.body);
            cs.emit('callStatusChange', {callStatus, sipStatus: prov.status});
--- a/lib/http-routes/api/update-call.js
+++ b/lib/http-routes/api/update-call.js
@@ -45,7 +45,7 @@ function retrieveCallSession(callSid, opts) {
 router.post('/:callSid', async(req, res) => {
  const logger = req.app.locals.logger;
  const callSid = req.params.callSid;
-  logger.debug({body: req.body}, 'got updateCall request');
+  logger.debug({body: req.body}, 'got upateCall request');
  try {
    const cs = retrieveCallSession(callSid, req.body);
    if (!cs) {
--- a/lib/http-routes/schemas/create-call.js
+++ b/lib/http-routes/schemas/create-call.js
@@ -46,6 +46,11 @@ const createCallSchema = checkSchema({
    optional: true,
    errorMessage: 'Invalid tag',
  },
+  'tag.*': {
+    trim: true,
+    escape: true,
+    stripLow: true,
+  },
  app_json: {
    isString: true,
    optional: true,
@@ -104,31 +109,6 @@ const createCallSchema = checkSchema({
  }
 }, ['body']);

-const customSanitizeFunction = (value) => {
-  try {
-    if (Array.isArray(value)) {
-      value = value.map((item) => customSanitizeFunction(item));
-    } else if (typeof value === 'object') {
-      Object.keys(value).forEach((key) => {
-        value[key] = customSanitizeFunction(value[key]);
-      });
-    } else if (typeof value === 'string') {
-      /* trims characters at the beginning and at the end of a string */
-      value = value.trim();
-
-      /* Verify strings including 'http' via new URL */
-      if (value.includes('http')) {
-        value = new URL(value).toString();
-      }
-    }
-  } catch (error) {
-    value = `Error: ${error.message}`;
-  }
-
-  return value;
-};
-
 module.exports = {
-  createCallSchema,
-  customSanitizeFunction
+  createCallSchema
 };
--- a/lib/middleware.js
+++ b/lib/middleware.js
@@ -11,10 +11,8 @@ const dbUtils = require('./utils/db-utils');
 const RootSpan = require('./utils/call-tracer');
 const listTaskNames = require('./utils/summarize-tasks');
 const {
-  JAMBONES_MYSQL_REFRESH_TTL,
-  JAMBONES_DISABLE_DIRECT_P2P_CALL
+  JAMBONES_MYSQL_REFRESH_TTL
 } = require('./config');
-const { createJambonzApp } = require('./dynamic-apps');

 module.exports = function(srf, logger) {
  const {
@@ -23,20 +21,17 @@ module.exports = function(srf, logger) {
    lookupAppBySid,
    lookupAppByRealm,
    lookupAppByTeamsTenant,
-    registrar,
-    lookupClientByAccountAndUsername
+    registrar
  }  = srf.locals.dbHelpers;
  const {
    writeAlerts,
    AlertType
  } = srf.locals;
-  const {lookupAccountDetails, lookupGoogleCustomVoice} = dbUtils(logger, srf);
+  const {lookupAccountDetails} = dbUtils(logger, srf);

-  async function initLocals(req, res, next) {
+  function initLocals(req, res, next) {
    const callId = req.get('Call-ID');
-    const uri = parseUri(req.uri);
    logger.info({
-      uri,
      callId,
      callingNumber: req.callingNumber,
      calledNumber: req.calledNumber
@@ -48,62 +43,16 @@ module.exports = function(srf, logger) {
    const callSid = req.has('X-Retain-Call-Sid') ? req.get('X-Retain-Call-Sid') : uuidv4();
    const account_sid = req.get('X-Account-Sid');
    req.locals = {callSid, account_sid, callId};
-
-    let clientDb = null;
-    if (req.has('X-Authenticated-User')) {
-      req.locals.originatingUser = req.get('X-Authenticated-User');
-      let clientSettings;
-      const arr = /^(.*)@(.*)/.exec(req.locals.originatingUser);
-      if (arr) {
-        [clientSettings] = await lookupClientByAccountAndUsername(account_sid, arr[1]);
-      }
-      clientDb = await registrar.query(req.locals.originatingUser);
-      clientDb = {
-        ...clientDb,
-        ...clientSettings,
-      };
-    }
-
-    // check for call to application
-    if (uri.user?.startsWith('app-') && req.locals.originatingUser && clientDb?.allow_direct_app_calling) {
-      const application_sid = uri.user.match(/app-(.*)/)[1];
-      logger.debug(`got application from Request URI header: ${application_sid}`);
-      req.locals.application_sid = application_sid;
-    } else if (req.has('X-Application-Sid')) {
+    if (req.has('X-Application-Sid')) {
      const application_sid = req.get('X-Application-Sid');
      logger.debug(`got application from X-Application-Sid header: ${application_sid}`);
      req.locals.application_sid = application_sid;
    }
-    // check for call to queue
-    else if (uri.user?.startsWith('queue-') && req.locals.originatingUser && clientDb?.allow_direct_queue_calling) {
-      const queue_name = uri.user.match(/queue-(.*)/)[1];
-      logger.debug(`got Queue from Request URI header: ${queue_name}`);
-      req.locals.queue_name = queue_name;
-    }
-    // check for call to conference
-    else if (uri.user?.startsWith('conference-') && req.locals.originatingUser && clientDb?.allow_direct_app_calling) {
-      const conference_id = uri.user.match(/conference-(.*)/)[1];
-      logger.debug(`got Conference from Request URI header: ${conference_id}`);
-      req.locals.conference_id = conference_id;
-    }
-    // check for call to registered user
-    else if (!JAMBONES_DISABLE_DIRECT_P2P_CALL && req.locals.originatingUser && clientDb?.allow_direct_user_calling) {
-      const arr = /^(.*)@(.*)/.exec(req.locals.originatingUser);
-      if (arr) {
-        const sipRealm = arr[2];
-        const called_user = `${req.calledNumber}@${sipRealm}`;
-        const reg = await registrar.query(called_user);
-        if (reg) {
-          logger.debug(`got called Number is a registered user: ${called_user}`);
-          req.locals.called_user = called_user;
-        }
-      }
-    }
-
+    if (req.has('X-Authenticated-User')) req.locals.originatingUser = req.get('X-Authenticated-User');
    if (req.has('X-MS-Teams-Tenant-FQDN')) req.locals.msTeamsTenant = req.get('X-MS-Teams-Tenant-FQDN');
    if (req.has('X-Cisco-Recording-Participant')) {
      const ciscoParticipants = req.get('X-Cisco-Recording-Participant');
-      const regex = /sip:[a-zA-Z0-9]+@[a-zA-Z0-9.-_]+/g;
+      const regex = /sip:[\d]+@[\d]+\.[\d]+\.[\d]+\.[\d]+/g;
      const sipURIs = ciscoParticipants.match(regex);
      logger.info(`X-Cisco-Recording-Participant : ${sipURIs} `);
      if (sipURIs && sipURIs.length > 0) {
@@ -172,7 +121,7 @@ module.exports = function(srf, logger) {
        };
        logger.info({callId, metadata, sdp}, 'successfully parsed SIPREC payload');
      } catch (err) {
-        logger.info({err, callId}, 'Error parsing multipart payload');
+        logger.info({callId}, 'Error parsing multipart payload');
        return res.send(503);
      }
    }
@@ -187,20 +136,14 @@ module.exports = function(srf, logger) {

    const {span} = rootSpan.startChildSpan('lookupAccountDetails');
    try {
-      const accountDetail = await lookupAccountDetails(account_sid);
-      const account = accountDetail?.account;
-      req.locals.accountInfo = accountDetail;
-      req.locals.service_provider_sid = account?.service_provider_sid;
+      req.locals.accountInfo = await lookupAccountDetails(account_sid);
+      req.locals.service_provider_sid = req.locals.accountInfo?.account?.service_provider_sid;
      span.end();
-      if (!account?.is_active) {
+      if (!req.locals.accountInfo.account.is_active) {
        logger.info(`Account is inactive or suspended ${account_sid}`);
        // TODO: alert
        return res.send(503, {headers: {'X-Reason': 'Account exists but is inactive'}});
      }
-      // Change the default log level to debug
-      if (account?.enable_debug_log) {
-        req.locals.logger.level = 'debug';
-      }
      logger.debug({accountInfo: req.locals?.accountInfo?.account}, `retrieved account info for ${account_sid}`);
      next();
    } catch (err) {
@@ -242,26 +185,42 @@ module.exports = function(srf, logger) {
    const {span} = rootSpan.startChildSpan('lookupApplication');
    try {
      let app;
-      if (req.locals.queue_name) {
-        logger.debug(`calling to queue ${req.locals.queue_name}, generating queue app`);
-        app = createJambonzApp('queue', {account_sid, name: req.locals.queue_name});
-      } else if (req.locals.called_user) {
-        logger.debug(`calling to registered user ${req.locals.called_user}, generating dial app`);
-        app = createJambonzApp('user',
-          {account_sid, name: req.locals.called_user, caller_id: req.locals.callingNumber});
-      } else if (req.locals.conference_id) {
-        logger.debug(`calling to conference ${req.locals.conference_id}, generating conference app`);
-        app = createJambonzApp('conference', {account_sid, name: req.locals.conference_id});
-      } else if (req.locals.application_sid) {
-        app = await lookupAppBySid(req.locals.application_sid);
-      } else if (req.locals.originatingUser) {
+      if (req.locals.application_sid) app = await lookupAppBySid(req.locals.application_sid);
+      else if (req.locals.originatingUser) {
        const arr = /^(.*)@(.*)/.exec(req.locals.originatingUser);
        if (arr) {
          const sipRealm = arr[2];
-          logger.debug(`looking for device calling app for realm ${sipRealm}`);
-          app = await lookupAppByRealm(sipRealm);
-          if (app) {
-            logger.debug({app}, `retrieved device calling app for realm ${sipRealm}`);
+          const calledAor = `${req.calledNumber}@${sipRealm}`;
+          const reg = await registrar.query(calledAor);
+          if (reg) {
+            logger.debug(`called client ${calledAor} is registered, forwarding call to called client.`);
+            app = {
+              // Dummy hook to follow later feature server logic.
+              call_hook: {
+                url: 'https://jambonz.org',
+                method: 'GET'
+              },
+              account_sid,
+              app_json: JSON.stringify(
+                [{
+                  verb: 'dial',
+                  callerId: arr[1],
+                  answerOnBridge: true,
+                  target: [
+                    {
+                      type: 'user',
+                      name: calledAor
+                    }
+                  ]
+                }]
+              )
+            };
+          } else {
+            logger.debug(`looking for device calling app for realm ${sipRealm}`);
+            app = await lookupAppByRealm(sipRealm);
+            if (app) {
+              logger.debug({app}, `retrieved device calling app for realm ${sipRealm}`);
+            }
          }
        }
      }
@@ -330,23 +289,6 @@ module.exports = function(srf, logger) {
        else app2.notifier = {request: () => {}, close: () => {}};
      }

-      // Resolve application.speech_synthesis_voice if it's custom voice
-      if (app2.speech_synthesis_vendor === 'google' && app2.speech_synthesis_voice.startsWith('custom_')) {
-        const arr = /custom_(.*)/.exec(app2.speech_synthesis_voice);
-        if (arr) {
-          const google_custom_voice_sid = arr[1];
-          const [custom_voice] = await lookupGoogleCustomVoice(google_custom_voice_sid);
-          //google voice cloning key has size 200kb, jambonz should not resolve the voice here that the app's calling
-          //webhook will receive big payload, tts-task should resolve the voice later.
-          if (!custom_voice.use_voice_cloning_key) {
-            app2.speech_synthesis_voice = {
-              reportedUsage: custom_voice.reported_usage,
-              model: custom_voice.model
-            };
-          }
-        }
-      }
-
      req.locals.application = app2;

      // eslint-disable-next-line no-unused-vars
@@ -360,17 +302,6 @@ module.exports = function(srf, logger) {
        direction: CallDirection.Inbound,
        traceId: rootSpan.traceId
      });
-      // if transferred call contains callInfo, let update original data to newly created callInfo in this instance.
-      if (app.transferredCall && app.callInfo) {
-        const {direction, callerName, from, to, originatingSipIp, originatingSipTrunkName} = app.callInfo;
-        req.locals.callInfo.direction = direction;
-        req.locals.callInfo.callerName = callerName;
-        req.locals.callInfo.from = from;
-        req.locals.callInfo.to = to;
-        req.locals.callInfo.originatingSipIp = originatingSipIp;
-        req.locals.callInfo.originatingSipTrunkName = originatingSipTrunkName;
-        delete app.callInfo;
-      }
      next();
    } catch (err) {
      span.end();
@@ -387,7 +318,7 @@ module.exports = function(srf, logger) {
    const {rootSpan, siprec, application:app} = req.locals;
    let span;
    try {
-      if (app.tasks && app.tasks?.length > 0 && !JAMBONES_MYSQL_REFRESH_TTL) {
+      if (app.tasks && !JAMBONES_MYSQL_REFRESH_TTL) {
        app.tasks = normalizeJambones(logger, app.tasks).map((tdata) => makeTask(logger, tdata));
        if (0 === app.tasks.length) throw new Error('no application provided');
        return next();
@@ -410,7 +341,7 @@ module.exports = function(srf, logger) {
          },
          recognizer: {
            vendor: app.speech_recognizer_vendor,
-            ...(app.speech_recognizer_label && {label: app.speech_recognizer_label}),
+            ...(app.speech_synthesis_label && {label: app.speech_synthesis_label}),
            language: app.speech_recognizer_language,
            ...(app.fallback_speech_recognizer_vendor && {fallback_vendor: app.fallback_speech_recognizer_vendor}),
            ...(app.fallback_speech_recognizer_label && {fallback_label: app.fallback_speech_recognizer_label}),
--- a/lib/session/adulting-call-session.js
+++ b/lib/session/adulting-call-session.js
@@ -1,6 +1,4 @@
 const CallSession = require('./call-session');
-const {CallStatus} = require('../utils/constants');
-const moment = require('moment');

 /**
 * @classdesc Subclass of CallSession.  Represents a CallSession
@@ -21,14 +19,12 @@ class AdultingCallSession extends CallSession {
      rootSpan
    });
    this.sd = singleDialer;
-    this.req = callInfo.req;

    this.sd.dlg.on('destroy', () => {
      this.logger.info('AdultingCallSession: called party hung up');
      this._callReleased();
    });
    this.sd.emit('adulting');
-    this.on('callStatusChange', this._notifyCallStatusChange.bind(this));
  }

  get dlg() {
@@ -45,36 +41,14 @@ class AdultingCallSession extends CallSession {
    return this.sd.ep;
  }

-  // When adulting session kicked from conference, replaceEndpoint is a must
-  set ep(newEp) {
-    this.sd.ep = newEp;
-  }
+  /* see note above */
+  set ep(newEp) {}

  get callSid() {
    return this.callInfo.callSid;
  }

  _callerHungup() {
-    this._hangup('caller');
-  }
-
-  _jambonzHangup() {
-    this._hangup();
-  }
-
-  _hangup(terminatedBy = 'jambonz') {
-    if (this.dlg.connectTime) {
-      const duration = moment().diff(this.dlg.connectTime, 'seconds');
-      this.rootSpan.setAttributes({'call.termination': `hangup by ${terminatedBy}`});
-      this.callInfo.callTerminationBy = terminatedBy;
-      this.emit('callStatusChange', {
-        callStatus: CallStatus.Completed,
-        duration
-      });
-    }
-    this.logger.info(`InboundCallSession: ${terminatedBy} hung up`);
-    this._callReleased();
-    this.req.removeAllListeners('cancel');
  }
 }

--- a/lib/session/call-info.js
+++ b/lib/session/call-info.js
@@ -32,7 +32,6 @@ class CallInfo {
      this.sipStatus = 100;
      this.sipReason = 'Trying';
      this.callStatus = CallStatus.Trying;
-      this.sbcCallid = req.get('X-CID');
      this.originatingSipIp = req.get('X-Forwarded-For');
      this.originatingSipTrunkName = req.get('X-Originating-Carrier');
      const {siprec} = req.locals;
@@ -130,7 +129,6 @@ class CallInfo {
      from: this.from,
      to: this.to,
      callId: this.callId,
-      sbcCallid: this.sbcCallid,
      sipStatus: this.sipStatus,
      sipReason: this.sipReason,
      callStatus: this.callStatus,
--- a/lib/session/call-session.js
+++ b/lib/session/call-session.js
--- a/lib/session/confirm-call-session.js
+++ b/lib/session/confirm-call-session.js
@@ -8,7 +8,7 @@ const CallSession = require('./call-session');

 */
 class ConfirmCallSession extends CallSession {
-  constructor({logger, application, dlg, ep, tasks, callInfo, accountInfo, memberId, confName, rootSpan, req}) {
+  constructor({logger, application, dlg, ep, tasks, callInfo, accountInfo, memberId, confName, rootSpan}) {
    super({
      logger,
      application,
@@ -23,7 +23,6 @@ class ConfirmCallSession extends CallSession {
    });
    this.dlg = dlg;
    this.ep = ep;
-    this.req = req;
  }

  /**
@@ -35,9 +34,6 @@ class ConfirmCallSession extends CallSession {
  _callerHungup() {
  }

-  _jambonzHangup() {
-  }
-

 }

--- a/lib/session/inbound-call-session.js
+++ b/lib/session/inbound-call-session.js
@@ -67,33 +67,15 @@ class InboundCallSession extends CallSession {
   * This is invoked when the caller hangs up, in order to calculate the call duration.
   */
  _callerHungup() {
-    this._hangup('caller');
-  }
-
-  _jambonzHangup(reason) {
-    this.dlg?.destroy({
-      headers: {
-        ...(reason && {'X-Reason': reason})
-      }
-    });
-    // kill current task or wakeup the call session.
-    this._callReleased();
-  }
-
-  _hangup(terminatedBy = 'jambonz') {
-    if (this.dlg === null) {
-      this.logger.info('InboundCallSession:_hangup - race condition, dlg cleared by app hangup');
-      return;
-    }
-    this.logger.info(`InboundCallSession: ${terminatedBy} hung up`);
    assert(this.dlg.connectTime);
    const duration = moment().diff(this.dlg.connectTime, 'seconds');
-    this.rootSpan.setAttributes({'call.termination': `hangup by ${terminatedBy}`});
-    this.callInfo.callTerminationBy = terminatedBy;
+    this.rootSpan.setAttributes({'call.termination': 'hangup by caller'});
+    this.callInfo.callTerminationBy = 'caller';
    this.emit('callStatusChange', {
      callStatus: CallStatus.Completed,
      duration
    });
+    this.logger.info('InboundCallSession: caller hung up');
    this._callReleased();
    this.req.removeAllListeners('cancel');
  }
--- a/lib/session/rest-call-session.js
+++ b/lib/session/rest-call-session.js
@@ -1,6 +1,7 @@
 const CallSession = require('./call-session');
 const {CallStatus} = require('../utils/constants');
 const moment = require('moment');
+
 /**
 * @classdesc Subclass of CallSession.  This represents a CallSession that is
 * created for an outbound call that is initiated via the REST API.
@@ -41,29 +42,20 @@ class RestCallSession extends CallSession {
  setDialog(dlg) {
    this.dlg = dlg;
    dlg.on('destroy', this._callerHungup.bind(this));
-    dlg.on('refer', this._onRefer.bind(this));
-    dlg.on('modify', this._onReinvite.bind(this));
    this.wrapDialog(dlg);
  }
+
  /**
   * This is invoked when the called party hangs up, in order to calculate the call duration.
   */
  _callerHungup() {
-    this._hangup('caller');
-  }
-
-  _jambonzHangup() {
-    this._hangup();
-  }
-
-  _hangup(terminatedBy = 'jambonz') {
    if (this.restDialTask) {
      this.restDialTask.turnOffAmd();
    }
-    this.callInfo.callTerminationBy = terminatedBy;
+    this.callInfo.callTerminationBy = 'caller';
    const duration = moment().diff(this.dlg.connectTime, 'seconds');
    this.emit('callStatusChange', {callStatus: CallStatus.Completed, duration});
-    this.logger.debug(`RestCallSession: called party hung up by ${terminatedBy}`);
+    this.logger.debug('RestCallSession: called party hung up');
    this._callReleased();
  }

--- a/lib/tasks/answer.js
+++ b/lib/tasks/answer.js
@@ -1,22 +0,0 @@
-const Task = require('./task');
-const {TaskName, TaskPreconditions} = require('../utils/constants');
-
-/**
- * Answer the call.
- * Note: This is rarely used, as the call is typically answered automatically when required by the app,
- * but it can be useful to force an answer before a pause in some cases
- */
-class TaskAnswer extends Task {
-  constructor(logger, opts) {
-    super(logger, opts);
-    this.preconditions = TaskPreconditions.Endpoint;
-  }
-
-  get name() { return TaskName.Answer; }
-
-  async exec(cs) {
-    super.exec(cs);
-  }
-}
-
-module.exports = TaskAnswer;
--- a/lib/tasks/conference.js
+++ b/lib/tasks/conference.js
@@ -6,7 +6,6 @@ const { normalizeJambones } = require('@jambonz/verb-specifications');
 const makeTask = require('./make_task');
 const bent = require('bent');
 const assert = require('assert');
-const HttpRequestor = require('../utils/http-requestor');
 const WAIT = 'wait';
 const JOIN = 'join';
 const START = 'start';
@@ -61,8 +60,6 @@ class Conference extends Task {

    this.emitter = new Emitter();
    this.results = {};
-    this.coaching = [];
-    this.speakOnlyTo = this.data.speakOnlyTo;

    // transferred from another server in order to bridge to a local caller?
    if (this.data._ && this.data._.connectTime) {
@@ -118,9 +115,7 @@ class Conference extends Task {
    this.emitter.emit('kill');
    await this._doFinalMemberCheck(cs);
    if (this.ep && this.ep.connected) {
-      // drachtio-fsmrf override esl::event::CUSTOM to conference join listerner, After finish the conference
-      // the application need to reset the esl::event::CUSTOM for another use on the same endpoint
-      this.ep.resetEslCustomEvent();
+      this.ep.conn.removeAllListeners('esl::event::CUSTOM::*');
      this.ep.api(`conference ${this.confName} kick ${this.memberId}`)
        .catch((err) => this.logger.info({err}, 'Error kicking participant'));
    }
@@ -137,10 +132,15 @@ class Conference extends Task {
   * @param {SipDialog} dlg
   */
  async _init(cs, dlg) {
+    const friendlyName = this.confName;
    const {createHash, retrieveHash} = cs.srf.locals.dbHelpers;
-    this.friendlyName = this.confName;
    this.confName = `conf:${cs.accountSid}:${this.confName}`;

+    this.statusParams = Object.assign({
+      conferenceSid: this.confName,
+      friendlyName
+    }, cs.callInfo);
+
    // check if conference is in progress
    const obj = await retrieveHash(this.confName);
    if (obj) {
@@ -348,29 +348,16 @@ class Conference extends Task {
      Object.assign(opts, {flags: {
        ...(this.endConferenceOnExit && {endconf: true}),
        ...(this.startConferenceOnEnter && {moderator: true}),
-        //https://developer.signalwire.com/freeswitch/FreeSWITCH-Explained/Modules/mod_conference_3965534/
-        // mute |	Enter conference muted
-        ...((this.joinMuted || this.speakOnlyTo) && {mute: true}),
+        ...(this.joinMuted && {joinMuted: true}),
      }});
-
-      /**
-       * Note on the above: if we are joining in "coaching" mode (ie only going to heard by a subset of participants)
-       * then we join muted temporarily, and then unmute ourselves once we have identified the subset of participants
-       * to whom we will be speaking.
-       */
    }

    try {
      const {memberId, confUuid} = await this.ep.join(this.confName, opts);
      this.logger.debug({memberId, confUuid}, `Conference:_joinConference: successfully joined ${this.confName}`);
-      this.memberId = parseInt(memberId, 10);
+      this.memberId = memberId;
      this.confUuid = confUuid;

-      // set a tag for this member, if provided
-      if (this.data.memberTag) {
-        this.setMemberTag(this.data.memberTag);
-      }
-
      cs.setConferenceDetails(memberId, this.confName, confUuid);
      const response = await this.ep.api('conference', [this.confName, 'get', 'count']);
      if (response.body && /\d+/.test(response.body)) this.participantCount = parseInt(response.body);
@@ -397,9 +384,6 @@ class Conference extends Task {
          .catch((err) => {});
      }

-      if (this.speakOnlyTo) {
-        this.setCoachMode(this.speakOnlyTo);
-      }
    } catch (err) {
      this.logger.error(err, `Failed to join conference ${this.confName}`);
      throw err;
@@ -444,15 +428,7 @@ class Conference extends Task {
    }
  }

-  doConferenceMute(cs, opts) {
-    assert (cs.isInConference);
-
-    const mute = opts.conf_mute_status === 'mute';
-    this.ep.api(`conference ${this.confName} ${mute ? 'mute' : 'unmute'} ${this.memberId}`)
-      .catch((err) => this.logger.info({err}, 'Error muting or unmuting participant'));
-  }
-
-  doConferenceHold(cs, opts) {
+  async doConferenceHold(cs, opts) {
    assert (cs.isInConference);

    const {conf_hold_status, wait_hook} = opts;
@@ -489,46 +465,6 @@ class Conference extends Task {
    }
  }

-  async doConferenceParticipantAction(cs, opts) {
-    const {action, tag, wait_hook } = opts;
-
-    switch (action) {
-      case 'tag':
-        await this.setMemberTag(tag);
-        break;
-      case 'untag':
-        await this.clearMemberTag();
-        break;
-      case 'coach':
-        await this.setCoachMode(tag);
-        break;
-      case 'uncoach':
-        await this.clearCoachMode();
-        break;
-      case 'hold':
-        this.doConferenceHold(cs, {
-          conf_hold_status: 'hold',
-          ...(wait_hook && {wait_hook})
-        });
-        break;
-      case 'unhold':
-        this.doConferenceHold(cs, {conf_hold_status: 'unhold'});
-        break;
-      case 'mute':
-        this.doConferenceMute(cs, {conf_mute_status: 'mute'});
-        break;
-      case 'unmute':
-        this.doConferenceMute(cs, {conf_mute_status: 'unmute'});
-        break;
-      case 'kick':
-        this.kickMember(cs);
-        break;
-      default:
-        this.logger.info(`Conference:doConferenceParticipantAction - unhandled action ${action}`);
-        break;
-    }
-  }
-
  async _doWaitHookWhileOnHold(cs, dlg, wait_hook) {
    do {
      try {
@@ -546,13 +482,6 @@ class Conference extends Task {
    } while (!this.killed && this.conf_hold_status === 'hold');
  }

-  /**
-   * mute or unmute side of the call
-   */
-  mute(callSid, doMute) {
-    this.doConferenceMute(this.callSession, {conf_mute_status: doMute});
-  }
-
  /**
   * Add ourselves to the waitlist of sessions to be notified once
   * the conference starts
@@ -582,7 +511,7 @@ class Conference extends Task {
  _normalizeHook(cs, hook) {
    if (typeof hook === 'object') return hook;
    const url = hook.startsWith('/') ?
-      `${cs.application.requestor instanceof HttpRequestor ? cs.application.requestor.baseUrl : ''}${hook}` :
+      `${cs.application.requestor.baseUrl}${hook}` :
      hook;

    return { url } ;
@@ -601,7 +530,7 @@ class Conference extends Task {
      const response = await this.ep.api('conference', [this.confName, 'get', 'count']);
      if (response.body && confNoMatch(response.body)) this.participantCount = 0;
      else if (response.body && /^\d+$/.test(response.body)) this.participantCount = parseInt(response.body) - 1;
-      this.logger.debug(`Conference:_doFinalMemberCheck conference count ${this.participantCount}`);
+      this.logger.debug({response}, `Conference:_doFinalMemberCheck conference count ${this.participantCount}`);
    } catch (err) {
      this.logger.info({err}, 'Conference:_doFinalMemberCheck error retrieving count (we were probably kicked');
    }
@@ -611,7 +540,7 @@ class Conference extends Task {
     * when we hang up as the last member, the current member count = 1
     * when we are kicked out of the call when the moderator leaves, the member count = 0
     */
-    if (this.participantCount === 0 || this.endConferenceOnExit) {
+    if (this.participantCount === 0) {
      const {deleteKey} = cs.srf.locals.dbHelpers;
      try {
        this._notifyConferenceEvent(cs, 'end');
@@ -619,8 +548,7 @@ class Conference extends Task {
        this.logger.info(`conf ${this.confName} deprovisioned: ${removed ? 'success' : 'failure'}`);
      }
      catch (err) {
-        this.logger.error(err, `Error deprovisioning conference ${this.confName},
-          might be the conference already cleaned by another moderator`);
+        this.logger.error(err, `Error deprovisioning conference ${this.confName}`);
      }
    }
  }
@@ -653,8 +581,7 @@ class Conference extends Task {
        memberId: this.memberId,
        confName: this.confName,
        tasks,
-        rootSpan: cs.rootSpan,
-        req: cs.req
+        rootSpan: cs.rootSpan
      });
      await this._playSession.exec();
      this._playSession = null;
@@ -698,24 +625,8 @@ class Conference extends Task {
      if (!params.time) params.time = (new Date()).toISOString();
      if (!params.members && typeof this.participantCount === 'number') params.members = this.participantCount;
      cs.application.requestor
-        .request(
-          'verb:hook',
-          this.statusHook,
-          Object.assign(
-            params,
-            Object.assign(
-              {
-                conferenceSid: this.confName,
-                friendlyName: this.friendlyName,
-              },
-              cs.callInfo.toJSON()
-            ),
-            httpHeaders
-          )
-        )
-        .catch((err) =>
-          this.logger.info(err, 'Conference:notifyConferenceEvent - error')
-        );
+        .request('verb:hook', this.statusHook, Object.assign(params, this.statusParams, httpHeaders))
+        .catch((err) => this.logger.info(err, 'Conference:notifyConferenceEvent - error'));
    }
  }

@@ -731,19 +642,11 @@ class Conference extends Task {
  }

  // conference event handlers
-  _onAddMember(logger, cs, evt) {
-    const memberId = parseInt(evt.getHeader('Member-ID')) ;
-    if (this.speakOnlyTo) {
-      logger.debug(`Conference:_onAddMember - member ${memberId} added to ${this.confName}, updating coaching mode`);
-      this.setCoachMode(this.speakOnlyTo).catch(() => {});
-    }
-    else logger.debug(`Conference:_onAddMember - member ${memberId} added to conference ${this.confName}`);
-  }
  _onDelMember(logger, cs, evt) {
    const memberId = parseInt(evt.getHeader('Member-ID')) ;
    this.participantCount = parseInt(evt.getHeader('Conference-Size'));
    if (memberId === this.memberId) {
-      logger.info(`Conference:_onDelMember - I was dropped from conference ${this.confName}, task is complete`);
+      this.logger.info(`Conference:_onDelMember - I was dropped from conference ${this.confName}, task is complete`);
      this.replaceEndpointAndEnd(cs);
    }
  }
@@ -772,99 +675,6 @@ class Conference extends Task {
    }
  }

-  _onTag(logger, cs, evt) {
-    const memberId = parseInt(evt.getHeader('Member-ID')) ;
-    const tag = evt.getHeader('Tag') || '';
-    if (memberId !== this.memberId && this.speakOnlyTo) {
-      logger.info(`Conference:_onTag - member ${memberId} set tag to '${tag }'; updating coach mode accordingly`);
-      this.setCoachMode(this.speakOnlyTo).catch(() => {});
-    }
-  }
-
-  /**
-   * Set the conference to "coaching" mode, where the audio of the participant is only heard
-   * by a subset of the participants in the conference.
-   * We do this by first getting all of the members who do *not* have this tag, and then
-   * we configure this members audio to not be sent to them.
-   * @param {string} speakOnlyTo - tag of the members who should receive our audio
-   *
-   * N.B.: this feature requires jambonz patches to freeswitch mod_conference
-   */
-  async setCoachMode(speakOnlyTo) {
-    this.speakOnlyTo = speakOnlyTo;
-    if (!this.memberId) {
-      this.logger.info('Conference:_setCoachMode: no member id yet');
-      return;
-    }
-    try {
-      const members = (await this.ep.getNonMatchingConfParticipants(this.confName, speakOnlyTo))
-        .filter((m) => m !== this.memberId);
-      if (members.length === 0) {
-        this.logger.info({members}, 'Conference:_setCoachMode: all participants have the tag, so all will hear me');
-        if (this.coaching.length) {
-          await this.ep.api('conference', [this.confName, 'relate', this.memberId, this.coaching.join(','), 'clear']);
-          this.coaching = [];
-        }
-      }
-      else {
-        const memberList = members.join(',');
-        this.logger.info(`Conference:_setCoachMode: my audio will NOT be sent to ${memberList}`);
-        await this.ep.api('conference', [this.confName, 'relate', this.memberId, memberList, 'nospeak']);
-        this.coaching = members;
-      }
-    } catch (err) {
-      this.logger.error({err, speakOnlyTo}, '_setCoachMode: Error');
-    }
-  }
-
-  async clearCoachMode() {
-    if (!this.memberId) return;
-    try {
-      if (this.coaching.length === 0) {
-        this.logger.info('Conference:_clearCoachMode: no coaching mode to clear');
-      }
-      else {
-        const memberList = this.coaching.join(',');
-        this.logger.info(`Conference:_clearCoachMode: now sending my audio to all, including ${memberList}`);
-        await this.ep.api('conference', [this.confName, 'relate', this.memberId, memberList, 'clear']);
-      }
-      this.speakOnlyTo = null;
-      this.coaching = [];
-    } catch (err) {
-      this.logger.error({err}, '_clearCoachMode: Error');
-    }
-  }
-
-  async setMemberTag(tag) {
-    try {
-      await this.ep.api('conference', [this.confName, 'tag', this.memberId, tag]);
-      this.logger.info(`Conference:setMemberTag: set tag for ${this.memberId} to ${tag}`);
-      this.memberTag = tag;
-    } catch (err) {
-      this.logger.error({err}, `Error setting tag for ${this.memberId} to ${tag}`);
-    }
-  }
-
-  async clearMemberTag() {
-    try {
-      await this.ep.api('conference', [this.confName, 'tag', this.memberId]);
-      this.logger.info(`Conference:setMemberTag: clearing tag for ${this.memberId}`);
-      this.memberTag = null;
-    } catch (err) {
-      this.logger.error({err}, `Error clearing tag for ${this.memberId}`);
-    }
-  }
-
-  async kickMember(cs) {
-    assert(cs.isInConference);
-    try {
-      await this.ep.api('conference', [this.confName, 'kick', this.memberId]);
-      this.logger.info(`Conference:kickMember: kick ${this.memberId} out of conference ${this.confName}`);
-    } catch (err) {
-      this.logger.error({err}, `Error kicking member out of conference for ${this.memberId}`);
-    }
-  }
-
 }

 module.exports = Conference;
--- a/lib/tasks/config.js
+++ b/lib/tasks/config.js
@@ -1,23 +1,15 @@
 const Task = require('./task');
 const {TaskName, TaskPreconditions} = require('../utils/constants');
-const parseDecibels = require('../utils/parse-decibels');

 class TaskConfig extends Task {
  constructor(logger, opts) {
    super(logger, opts);
-
    [
      'synthesizer',
      'recognizer',
      'bargeIn',
      'record',
-      'listen',
-      'transcribe',
-      'fillerNoise',
-      'actionHookDelayAction',
-      'boostAudioSignal',
-      'vad',
-      'ttsStream'
+      'listen'
    ].forEach((k) => this[k] = this.data[k] || {});

    if ('notifyEvents' in this.data) {
@@ -35,23 +27,9 @@ class TaskConfig extends Task {
        'finishOnKey', 'input', 'numDigits', 'minDigits', 'maxDigits',
        'interDigitTimeout', 'bargein', 'dtmfBargein', 'minBargeinWordCount', 'actionHook'
      ].forEach((k) => {
-        const val = this.bargeIn[k];
-        if (val !== undefined && val !== null) this.gatherOpts[k] = val;
+        if (this.bargeIn[k]) this.gatherOpts[k] = this.bargeIn[k];
      });
    }
-    if (this.transcribe?.enable) {
-      this.transcribeOpts = {
-        verb: 'transcribe',
-        ...this.transcribe
-      };
-      delete this.transcribeOpts.enable;
-    }
-    if (this.ttsStream.enable) {
-      this.sayOpts = {
-        verb: 'say',
-        stream: true
-      };
-    }

    if (this.data.reset) {
      if (typeof this.data.reset === 'string') this.data.reset = [this.data.reset];
@@ -59,12 +37,7 @@ class TaskConfig extends Task {
    else this.data.reset = [];

    if (this.bargeIn.sticky) this.autoEnable = true;
-    this.preconditions = (this.bargeIn.enable ||
-      this.record?.action ||
-      this.listen?.url ||
-      this.data.amd ||
-      'boostAudioSignal' in this.data ||
-      this.transcribe?.enable) ?
+    this.preconditions = (this.bargeIn.enable || this.record?.action || this.listen?.url || this.data.amd) ?
      TaskPreconditions.Endpoint :
      TaskPreconditions.None;

@@ -77,12 +50,6 @@ class TaskConfig extends Task {
  get hasRecognizer() { return Object.keys(this.recognizer).length; }
  get hasRecording() { return Object.keys(this.record).length; }
  get hasListen() { return Object.keys(this.listen).length; }
-  get hasTranscribe() { return Object.keys(this.transcribe).length; }
-  get hasDub() { return Object.keys(this.dub).length; }
-  get hasVad() { return Object.keys(this.vad).length; }
-  get hasFillerNoise() { return Object.keys(this.fillerNoise).length; }
-  get hasReferHook() { return Object.keys(this.data).includes('referHook'); }
-  get hasTtsStream() { return Object.keys(this.ttsStream).length; }

  get summary() {
    const phrase = [];
@@ -92,31 +59,22 @@ class TaskConfig extends Task {

    if (this.bargeIn.enable) phrase.push('enable barge-in');
    if (this.hasSynthesizer) {
-      const {vendor:v, language:l, voice, label} = this.synthesizer;
-      const s = `{${v},${l},${voice},${label || 'None'}}`;
+      const {vendor:v, language:l, voice} = this.synthesizer;
+      const s = `{${v},${l},${voice}}`;
      phrase.push(`set synthesizer${s}`);
    }
    if (this.hasRecognizer) {
-      const {vendor:v, language:l, label} = this.recognizer;
-      const s = `{${v},${l},${label || 'None'}}`;
+      const {vendor:v, language:l} = this.recognizer;
+      const s = `{${v},${l}}`;
      phrase.push(`set recognizer${s}`);
    }
    if (this.hasRecording) phrase.push(this.record.action);
    if (this.hasListen) {
      phrase.push(this.listen.enable ? `listen ${this.listen.url}` : 'stop listen');
    }
-    if (this.hasTranscribe) {
-      phrase.push(this.transcribe.enable ? `transcribe ${this.transcribe.transcriptionHook}` : 'stop transcribe');
-    }
-    if (this.hasFillerNoise) phrase.push(`fillerNoise ${this.fillerNoise.enable ? 'on' : 'off'}`);
    if (this.data.amd) phrase.push('enable amd');
    if (this.notifyEvents) phrase.push(`event notification ${this.notifyEvents ? 'on' : 'off'}`);
    if (this.onHoldMusic) phrase.push(`onHoldMusic: ${this.onHoldMusic}`);
-    if ('boostAudioSignal' in this.data) phrase.push(`setGain ${this.data.boostAudioSignal}`);
-    if (this.hasReferHook) phrase.push('set referHook');
-    if (this.hasTtsStream) {
-      phrase.push(`${this.ttsStream.enable ? 'enable' : 'disable'} ttsStream`);
-    }
    return `${this.name}{${phrase.join(',')}}`;
  }

@@ -151,12 +109,12 @@ class TaskConfig extends Task {
    });

    if (this.hasSynthesizer) {
-      cs.synthesizer = this.synthesizer;
      cs.speechSynthesisVendor = this.synthesizer.vendor !== 'default'
        ? this.synthesizer.vendor
        : cs.speechSynthesisVendor;
-      cs.speechSynthesisLabel = this.synthesizer.label === 'default'
-        ? cs.speechSynthesisLabel : this.synthesizer.label;
+      cs.speechSynthesisLabel = this.synthesizer.label !== 'default'
+        ? this.synthesizer.label
+        : cs.speechSynthesisLabel;
      cs.speechSynthesisLanguage = this.synthesizer.language !== 'default'
        ?  this.synthesizer.language
        : cs.speechSynthesisLanguage;
@@ -168,25 +126,24 @@ class TaskConfig extends Task {
      cs.fallbackSpeechSynthesisVendor = this.synthesizer.fallbackVendor !== 'default'
        ? this.synthesizer.fallbackVendor
        : cs.fallbackSpeechSynthesisVendor;
-      cs.fallbackSpeechSynthesisLabel = this.synthesizer.fallbackLabel === 'default'
-        ? cs.fallbackSpeechSynthesisLabel : this.synthesizer.fallbackLabel;
+      cs.fallbackSpeechSynthesisLabel = this.synthesizer.fallbackLabel !== 'default'
+        ? this.synthesizer.fallbackLabel
+        : cs.fallbackSpeechSynthesisLabel;
      cs.fallbackSpeechSynthesisLanguage = this.synthesizer.fallbackLanguage !== 'default'
        ?  this.synthesizer.fallbackLanguage
        : cs.fallbackSpeechSynthesisLanguage;
      cs.fallbackSpeechSynthesisVoice = this.synthesizer.fallbackVoice !== 'default'
        ? this.synthesizer.fallbackVoice
        : cs.fallbackSpeechSynthesisVoice;
-      // new vendor is set, reset fallback vendor
-      cs.hasFallbackTts = false;
      this.logger.info({synthesizer: this.synthesizer}, 'Config: updated synthesizer');
    }
    if (this.hasRecognizer) {
-      cs.recognizer = this.recognizer;
      cs.speechRecognizerVendor = this.recognizer.vendor !== 'default'
        ? this.recognizer.vendor
        : cs.speechRecognizerVendor;
-      cs.speechRecognizerLabel = this.recognizer.label === 'default'
-        ? cs.speechRecognizerLabel : this.recognizer.label;
+      cs.speechRecognizerLabel = this.recognizer.label !== 'default'
+        ? this.recognizer.label
+        : cs.speechRecognizerLabel;
      cs.speechRecognizerLanguage = this.recognizer.language !== 'default'
        ? this.recognizer.language
        : cs.speechRecognizerLanguage;
@@ -195,9 +152,9 @@ class TaskConfig extends Task {
      cs.fallbackSpeechRecognizerVendor = this.recognizer.fallbackVendor !== 'default'
        ? this.recognizer.fallbackVendor
        : cs.fallbackSpeechRecognizerVendor;
-      cs.fallbackSpeechRecognizerLabel = this.recognizer.fallbackLabel === 'default' ?
-        cs.fallbackSpeechRecognizerLabel :
-        this.recognizer.fallbackLabel;
+      cs.fallbackSpeechRecognizerLabel = this.recognizer.fallbackLabel !== 'default'
+        ? this.recognizer.fallbackLabel
+        : cs.fallbackSpeechRecognizerLabel;
      cs.fallbackSpeechRecognizerLanguage = this.recognizer.fallbackLanguage !== 'default'
        ? this.recognizer.fallbackLanguage
        : cs.fallbackSpeechRecognizerLanguage;
@@ -221,8 +178,6 @@ class TaskConfig extends Task {
      if ('punctuation' in this.recognizer) {
        cs.globalSttPunctuation = this.recognizer.punctuation;
      }
-      // new vendor is set, reset fallback vendor
-      cs.hasFallbackAsr = false;
      this.logger.info({
        recognizer: this.recognizer,
        isContinuousAsr: cs.isContinuousAsr
@@ -255,83 +210,15 @@ class TaskConfig extends Task {
      const {enable, ...opts} = this.listen;
      if (enable) {
        this.logger.debug({opts}, 'Config: enabling listen');
-        cs.startBackgroundTask('listen', {verb: 'listen', ...opts});
+        cs.startBackgroundListen({verb: 'listen', ...opts});
      } else {
        this.logger.info('Config: disabling listen');
-        cs.stopBackgroundTask('listen');
+        cs.stopBackgroundListen();
      }
    }
-    if (this.hasTranscribe) {
-      if (this.transcribe.enable) {
-        if (!this.transcribeOpts.recognizer) {
-          this.transcribeOpts.recognizer = this.hasRecognizer ?
-            this.recognizer :
-            {
-              vendor: cs.speechRecognizerVendor,
-              language: cs.speechRecognizerLanguage
-            };
-        }
-        this.logger.debug(this.transcribeOpts, 'Config: enabling transcribe');
-        cs.startBackgroundTask('transcribe', this.transcribeOpts);
-      } else {
-        this.logger.info('Config: disabling transcribe');
-        cs.stopBackgroundTask('transcribe');
-      }
-    }
-    if (Object.keys(this.actionHookDelayAction).length !== 0) {
-      cs.actionHookDelayProperties = this.actionHookDelayAction;
-    }
    if (this.data.sipRequestWithinDialogHook) {
      cs.sipRequestWithinDialogHook = this.data.sipRequestWithinDialogHook;
    }
-
-    if ('boostAudioSignal' in this.data) {
-      const db = parseDecibels(this.data.boostAudioSignal);
-      this.logger.info(`Config: boosting audio signal by ${db} dB`);
-      const args = [ep.uuid, 'setGain', db];
-      ep.api('uuid_dub', args).catch((err) => {
-        this.logger.error(err, 'Error boosting audio signal');
-      });
-    }
-
-    if (this.hasFillerNoise) {
-      const {enable, ...opts} = this.fillerNoise;
-      this.logger.info({fillerNoise: this.fillerNoise}, 'Config: fillerNoise');
-      if (!enable) cs.disableFillerNoise();
-      else {
-        cs.enableFillerNoise(opts);
-      }
-    }
-
-    if (this.hasVad) {
-      cs.vad = {
-        enable: this.vad.enable || false,
-        voiceMs: this.vad.voiceMs || 250,
-        silenceMs: this.vad.silenceMs || 150,
-        strategy: this.vad.strategy || 'one-shot',
-        mode: (this.vad.mode !== undefined && this.vad.mode !== null) ? this.vad.mode : 2
-      };
-    }
-
-    if (this.hasReferHook) {
-      cs.referHook = this.data.referHook;
-    }
-
-    if (this.ttsStream.enable && this.sayOpts) {
-      this.sayOpts.synthesizer = this.hasSynthesizer ? this.synthesizer : {
-        vendor: cs.speechSynthesisVendor,
-        language: cs.speechSynthesisLanguage,
-        voice: cs.speechSynthesisVoice,
-        ...(cs.speechSynthesisLabel && {
-          label: cs.speechSynthesisLabel
-        })
-      };
-      this.logger.info({opts: this.gatherOpts}, 'Config: enabling ttsStream');
-      cs.enableBackgroundTtsStream(this.sayOpts);
-    } else if (!this.ttsStream.enable) {
-      this.logger.info('Config: disabling ttsStream');
-      cs.disableTtsStream();
-    }
  }

  async kill(cs) {
--- a/lib/tasks/dequeue.js
+++ b/lib/tasks/dequeue.js
@@ -73,8 +73,7 @@ class TaskDequeue extends Task {
        try {
          let url;
          if (this.callSid) {
-            const r = await retrieveByPatternSortedSet(this.queueName, `*${this.callSid}`);
-            url = r[0];
+            url = await retrieveByPatternSortedSet(this.queueName, `*${this.callSid}`);
          } else {
            url = await retrieveFromSortedSet(this.queueName);
          }
--- a/lib/tasks/dial.js
+++ b/lib/tasks/dial.js
@@ -6,7 +6,6 @@ const {
  TaskName,
  TaskPreconditions,
  MAX_SIMRINGS,
-  MediaPath,
  KillReason
 } = require('../utils/constants');
 const assert = require('assert');
@@ -15,15 +14,11 @@ const sessionTracker = require('../session/session-tracker');
 const DtmfCollector = require('../utils/dtmf-collector');
 const ConfirmCallSession = require('../session/confirm-call-session');
 const dbUtils = require('../utils/db-utils');
-const parseDecibels = require('../utils/parse-decibels');
 const debug = require('debug')('jambonz:feature-server');
 const {parseUri} = require('drachtio-srf');
-const {ANCHOR_MEDIA_ALWAYS,
-  JAMBONZ_DISABLE_DIAL_PAI_HEADER,
-  JAMBONES_DIAL_SBC_FOR_REGISTERED_USER} = require('../config');
-const { isOnhold, isOpusFirst } = require('../utils/sdp-utils');
+const {ANCHOR_MEDIA_ALWAYS, JAMBONZ_DISABLE_DIAL_PAI_HEADER} = require('../config');
+const { isOnhold } = require('../utils/sdp-utils');
 const { normalizeJambones } = require('@jambonz/verb-specifications');
-const { selectHostPort } = require('../utils/network');

 function parseDtmfOptions(logger, dtmfCapture) {
  let parentDtmfCollector, childDtmfCollector;
@@ -86,8 +81,6 @@ function filterAndLimit(logger, tasks) {
  return unique;
 }

-const sleepFor = (ms) => new Promise((resolve) => setTimeout(() => resolve(), ms));
-
 class TaskDial extends Task {
  constructor(logger, opts) {
    super(logger, opts);
@@ -107,9 +100,6 @@ class TaskDial extends Task {
    this.referHook = this.data.referHook;
    this.dtmfHook = this.data.dtmfHook;
    this.proxy = this.data.proxy;
-    this.tag = this.data.tag;
-    this.boostAudioSignal = this.data.boostAudioSignal;
-    this._mediaPath = MediaPath.FullMedia;

    if (this.dtmfHook) {
      const {parentDtmfCollector, childDtmfCollector} = parseDtmfOptions(logger, this.data.dtmfCapture || {});
@@ -127,9 +117,6 @@ class TaskDial extends Task {
    if (this.data.transcribe) {
      this.transcribeTask = makeTask(logger, {'transcribe' : this.data.transcribe}, this);
    }
-    if (this.data.dub && Array.isArray(this.data.dub) && this.data.dub.length > 0) {
-      this.dubTasks = this.data.dub.map((d) => makeTask(logger, {'dub': d}, this));
-    }

    this.results = {};
    this.bridged = false;
@@ -151,27 +138,21 @@ class TaskDial extends Task {

  get name() { return TaskName.Dial; }

-  get isOnHoldEnabled() {
-    return !!this.data.onHoldHook;
+  get isOnHold() {
+    return this.isIncomingLegHold || this.isOutgoingLegHold;
  }

  get canReleaseMedia() {
    const keepAnchor = this.data.anchorMedia ||
-      this.cs.isBackGroundListen ||
-      this.cs.onHoldMusic ||
-      ANCHOR_MEDIA_ALWAYS ||
-      this.listenTask ||
-      this.dubTasks ||
-      this.transcribeTask ||
-      this.startAmd;
+    this.cs.isBackGroundListen ||
+    ANCHOR_MEDIA_ALWAYS ||
+    this.listenTask ||
+    this.transcribeTask ||
+    this.startAmd;

    return !keepAnchor;
  }

-  get shouldExitMediaPathEntirely() {
-    return this.data.exitMediaPath;
-  }
-
  get summary() {
    if (this.target.length === 1) {
      const target = this.target[0];
@@ -192,16 +173,6 @@ class TaskDial extends Task {

  async exec(cs) {
    await super.exec(cs);
-
-    if (this.data.anchorMedia && this.data.exitMediaPath) {
-      this.logger.info('Dial:exec - incompatible anchorMedia and exitMediaPath are both set, will obey anchorMedia');
-      delete this.data.exitMediaPath;
-    }
-    if (!this.canReleaseMedia && this.data.exitMediaPath) {
-      this.logger.info(
-        'Dial:exec - exitMediaPath is set so features such as transcribe and record will not work on this call');
-    }
-
    try {
      if (this.listenTask) {
        const {span, ctx} = this.startChildSpan(`nested:${this.listenTask.summary}`);
@@ -224,16 +195,7 @@ class TaskDial extends Task {
      else {
        this.epOther = cs.ep;
        if (this.dialMusic && this.epOther && this.epOther.connected) {
-          (async() => {
-            do {
-              try {
-                await this.epOther.play(this.dialMusic);
-              } catch (err) {
-                this.logger.error(err, `TaskDial:exec error playing ${this.dialMusic}`);
-                await sleepFor(1000);
-              }
-            } while (!this.killed || !this.bridged);
-          })();
+          this.epOther.play(this.dialMusic).catch((err) => {});
        }
      }
      if (!this.killed) await this._attemptCalls(cs);
@@ -273,9 +235,7 @@ class TaskDial extends Task {
    this._removeDtmfDetection(this.dlg);
    await this._killOutdials();
    if (this.sd) {
-      const byeReasonHeader = this.killReason === KillReason.MediaTimeout ? 'Media Timeout' : undefined;
-      this.sd.kill(byeReasonHeader);
-      this.sd.ep?.removeListener('destroy', this._handleMediaTimeout.bind(this));
+      this.sd.kill();
      this.sd.removeAllListeners();
      this.sd = null;
    }
@@ -321,7 +281,7 @@ class TaskDial extends Task {
      if (!cs.callGone && this.epOther) {

        /* if we can release the media back to the SBC, do so now */
-        if (this.canReleaseMedia) this._releaseMedia(cs, this.sd, this.shouldExitMediaPathEntirely);
+        if (this.canReleaseMedia) this._releaseMedia(cs, this.sd);
        else this.epOther.bridge(this.ep);
      }
    } catch (err) {
@@ -361,58 +321,22 @@ class TaskDial extends Task {

        const to = parseUri(req.getParsedHeader('Refer-To').uri);
        const by = parseUri(req.getParsedHeader('Referred-By').uri);
-        const referredBy = req.get('Referred-By');
-        const userAgent = req.get('User-Agent');
-        const customHeaders = Object.keys(req.headers)
-          .filter((h) => h.toLowerCase().startsWith('x-'))
-          .reduce((acc, h) => {
-            acc[h] = req.get(h);
-            return acc;
-          }, {});
        this.logger.info({to}, 'refer to parsed');
-        const json = await cs.requestor.request('verb:hook', this.referHook, {
-          ...(callInfo.toJSON()),
+        await cs.requestor.request('verb:hook', this.referHook, {
+          ...callInfo,
          refer_details: {
            sip_refer_to: req.get('Refer-To'),
+            sip_referred_by: req.get('Referred-By'),
+            sip_user_agent: req.get('User-Agent'),
            refer_to_user: to.scheme === 'tel' ? to.number : to.user,
-            ...(referredBy && {sip_referred_by: referredBy}),
-            ...(userAgent && {sip_user_agent: userAgent}),
-            ...(by && {referred_by_user: by.scheme === 'tel' ? by.number : by.user}),
+            referred_by_user: by.scheme === 'tel' ? by.number : by.user,
            referring_call_sid,
-            referred_call_sid,
-            ...customHeaders
+            referred_call_sid
          }
        }, httpHeaders);
-        if (json && Array.isArray(json)) {
-          try {
-            const logger = isChild ? this.logger : this.sd.logger;
-            const tasks = normalizeJambones(logger, json).map((tdata) => makeTask(this.logger, tdata));
-            if (tasks && tasks.length > 0) {
-              const legs = isChild ? ['child', 'parent'] : ['parent', 'child'];
-              logger.info(`Dial:handleRefer received REFER on ${legs[0]} leg, setting new app on ${legs[1]} leg`);
-              if (isChild) this.redirect(cs, tasks);
-              else {
-                logger.info({tasks: json}, 'Dial:handleRefer - new application for for child leg');
-                const adultingSession = await this.sd.doAdulting({
-                  logger,
-                  application: cs.application,
-                  tasks
-                });
-                /* need to update the callSid of the child with its own (new) AdultingCallSession */
-                sessionTracker.add(adultingSession.callSid, adultingSession);
-              }
-            }
-          } catch (err) {
-            this.logger.info(err, 'Dial:handleRefer - error setting new application after receiving REFER');
-          }
-        }
-        //caller and callee legs are briged together, accept refer with 202 will release callee leg endpoint
-        //that makes freeswitch release endpoint for caller leg.
-        if (this.ep) this.ep.unbridge();
        res.send(202);
        this.logger.info('DialTask:handleRefer - sent 202 Accepted');
      } catch (err) {
-        this.logger.info({err}, 'DialTask:handleRefer - error processing incoming REFER');
        res.send(err.statusCode || 501);
      }
    }
@@ -518,11 +442,11 @@ class TaskDial extends Task {
  }

  async _attemptCalls(cs) {
-    const {req, callInfo, direction, srf} = cs;
+    const {req, srf} = cs;
    const {getSBC} = srf.locals;
    const {lookupTeamsByAccount, lookupAccountBySid} = srf.locals.dbHelpers;
-    const {lookupCarrier, lookupCarrierByPhoneNumber, lookupVoipCarrierBySid} = dbUtils(this.logger, cs.srf);
-    let sbcAddress = this.proxy || getSBC();
+    const {lookupCarrier, lookupCarrierByPhoneNumber} = dbUtils(this.logger, cs.srf);
+    const sbcAddress = this.proxy || getSBC();
    const teamsInfo = {};
    let fqdn;

@@ -530,27 +454,18 @@ class TaskDial extends Task {
    this.headers = {
      'X-Account-Sid': cs.accountSid,
      ...(req && req.has('X-CID') && {'X-CID': req.get('X-CID')}),
-      ...(direction === 'outbound' && callInfo.sbcCallid && {'X-CID': callInfo.sbcCallid}),
-      ...(!JAMBONZ_DISABLE_DIAL_PAI_HEADER && req && {
-        ...(req.has('P-Asserted-Identity') && {'P-Asserted-Identity': req.get('P-Asserted-Identity')}),
-        ...(req.has('Privacy') && {'Privacy': req.get('Privacy')}),
-      }),
+      ...(req && req.has('P-Asserted-Identity') && !JAMBONZ_DISABLE_DIAL_PAI_HEADER &&
+        {'P-Asserted-Identity': req.get('P-Asserted-Identity')}),
      ...(req && req.has('X-Voip-Carrier-Sid') && {'X-Voip-Carrier-Sid': req.get('X-Voip-Carrier-Sid')}),
      // Put headers at the end to make sure opt.headers override all default behavior.
      ...this.headers
    };

-    // default to inband dtmf if not specified
-    this.inbandDtmfEnabled = cs.inbandDtmfEnabled;
-    // get calling user from From header
-    const parsedFrom = req.getParsedHeader('from');
-    const fromUri = parseUri(parsedFrom.uri);
    const opts = {
      headers: this.headers,
      proxy: `sip:${sbcAddress}`,
-      callingNumber: this.callerId || fromUri.user,
-      ...(this.callerName && {callingName: this.callerName}),
-      opusFirst: isOpusFirst(this.cs.ep.remote.sdp)
+      callingNumber: this.callerId || req.callingNumber,
+      ...(this.callerName && {callingName: this.callerName})
    };

    const t = this.target.find((t) => t.type === 'teams');
@@ -594,15 +509,6 @@ class TaskDial extends Task {
            this.logger.error({err}, 'Error looking up account by sid');
          }
        }
-        // find handling sbc sip for called user
-        if (JAMBONES_DIAL_SBC_FOR_REGISTERED_USER && t.type === 'user') {
-          const { registrar }  = srf.locals.dbHelpers;
-          const reg = await registrar.query(t.name);
-          if (reg) {
-            sbcAddress = selectHostPort(this.logger, reg.sbcAddress, 'tcp')[1];
-          }
-          //sbc outbound return 404 Notfound to handle case called user is not reigstered.
-        }
        if (t.type === 'phone' && t.trunk) {
          const voip_carrier_sid = await lookupCarrier(cs.accountSid, t.trunk);
          this.logger.info(`Dial:_attemptCalls: selected ${voip_carrier_sid} for requested carrier: ${t.trunk}`);
@@ -619,17 +525,10 @@ class TaskDial extends Task {
          const str = this.callerId || req.callingNumber || '';
          const callingNumber = str.startsWith('+') ? str.substring(1) : str;
          const voip_carrier_sid = await lookupCarrierByPhoneNumber(cs.accountSid, callingNumber);
-          const req_voip_carrier_sid = req.has('X-Voip-Carrier-Sid') ? req.get('X-Voip-Carrier-Sid') : null;
+          this.logger.info(
+            `Dial:_attemptCalls: selected ${voip_carrier_sid} for requested phone number: ${callingNumber}`);
          if (voip_carrier_sid) {
-            this.logger.info(
-              `Dial:_attemptCalls: selected voip_carrier_sid ${voip_carrier_sid} for callingNumber: ${callingNumber}`);
            opts.headers['X-Requested-Carrier-Sid'] = voip_carrier_sid;
-
-            // Checking if outbound carrier is different from inbound carrier and has dtmf type tones
-            if (voip_carrier_sid !== req_voip_carrier_sid) {
-              const [voipCarrier] = await lookupVoipCarrierBySid(voip_carrier_sid);
-              this.inbandDtmfEnabled = voipCarrier?.dtmf_type === 'tones';
-            }
          }
        }

@@ -647,8 +546,7 @@ class TaskDial extends Task {
          accountInfo: cs.accountInfo,
          rootSpan: cs.rootSpan,
          startSpan: this.startSpan.bind(this),
-          dialTask: this,
-          onHoldMusic: this.cs.onHoldMusic
+          dialTask: this
        });
        this.dials.set(sd.callSid, sd);

@@ -670,7 +568,6 @@ class TaskDial extends Task {
                dialCallStatus: obj.callStatus,
                dialSipStatus: obj.sipStatus,
                dialCallSid: sd.callSid,
-                dialSbcCallid: sd.callInfo.sbcCallid
              });
            }
            switch (obj.callStatus) {
@@ -706,8 +603,6 @@ class TaskDial extends Task {
              await this._connectSingleDial(cs, sd);
            } catch (err) {
              this.logger.info({err}, 'Dial:_attemptCalls - Error calling _connectSingleDial ');
-              sd.removeAllListeners();
-              this.kill(cs);
            }
          })
          .on('decline', () => {
@@ -760,43 +655,22 @@ class TaskDial extends Task {
  async _onReinvite(req, res) {
    try {
      let isHandled = false;
-      if (this.isOnHoldEnabled) {
-        if (isOnhold(req.body)) {
-          this.logger.debug('Dial: _onReinvite receive hold Request');
-          if (!this.epOther && !this.ep) {
-            this.logger.debug(`Dial: _onReinvite receive hold Request,
- media already released, reconnect media server`);
-            // update caller leg for new SDP from callee.
-            await this.cs.handleReinviteAfterMediaReleased(req, res);
-            // Freeswitch media is released, reconnect
-            await this.reAnchorMedia(this.cs, this.sd);
-            this.isOutgoingLegHold = true;
-          } else {
-            this.logger.debug('Dial: _onReinvite receive hold Request, update SDP');
-            const newSdp = await this.ep.modify(req.body);
-            res.send(200, {body: newSdp});
-          }
+      if (this.cs.onHoldMusic) {
+        if (isOnhold(req.body) && !this.epOther && !this.ep) {
+          await this.cs.handleReinviteAfterMediaReleased(req, res);
+          // Onhold but media is already released
+          // reconnect A Leg and Response B leg
+          await this.reAnchorMedia(this.cs, this.sd);
+          this.isOutgoingLegHold = true;
          isHandled = true;
-          // Media already connected, ask for onHoldHook
-          this._onHoldHook(req);
-        } else if (!isOnhold(req.body)) {
-          this.logger.debug('Dial: _onReinvite receive unhold Request');
-          if (this.epOther && this.ep && this.isOutgoingLegHold && this.canReleaseMedia) {
-            this.logger.debug('Dial: _onReinvite receive unhold Request, release media');
-            // Offhold, time to release media
-            const newSdp = await this.ep.modify(req.body);
-            await res.send(200, {body: newSdp});
-            await this._releaseMedia(this.cs, this.sd, this.shouldExitMediaPathEntirely);
-            this.isOutgoingLegHold = false;
-          } else {
-            this.logger.debug('Dial: _onReinvite receive unhold Request, update media server');
-            const newSdp = await this.ep.modify(req.body);
-            res.send(200, {body: newSdp});
-          }
-          if (this._onHoldSession) {
-            this._onHoldSession.kill();
-          }
+          this._onHoldHook();
+        } else if (!isOnhold(req.body) && this.epOther && this.ep && this.isOutgoingLegHold && this.canReleaseMedia) {
+          // Offhold, time to release media
+          const newSdp = await this.ep.modify(req.body);
+          await res.send(200, {body: newSdp});
+          await this._releaseMedia(this.cs, this.sd);
          isHandled = true;
+          this.isOutgoingLegHold = false;
        }
      }
      if (!isHandled) {
@@ -857,17 +731,6 @@ class TaskDial extends Task {
      dialCallSid: sd.callSid,
    });

-    if (this.dubTasks) {
-      for (const dub of this.dubTasks) {
-        try {
-          await dub.exec(cs, {ep: sd.ep});
-        }
-        catch (err) {
-          this.logger.error({err}, 'Dial:_selectSingleDial - error executing dubTask');
-        }
-      }
-    }
-
    if (this.parentDtmfCollector) this._installDtmfDetection(cs, cs.dlg);
    if (this.childDtmfCollector) this._installDtmfDetection(cs, this.dlg);
    if (cs.sipRequestWithinDialogHook) this._initSipIndialogRequestListener(cs, this.dlg);
@@ -882,30 +745,8 @@ class TaskDial extends Task {
      }
    }

-    /* boost audio signal if requested */
-    if (this.boostAudioSignal) {
-      try {
-        const db = parseDecibels(this.boostAudioSignal);
-        this.logger.info(`Dial: boosting audio signal by ${db} dB`);
-        const args = [this.ep.uuid, 'setGain', db];
-        await this.ep.api('uuid_dub', args);
-      } catch (err) {
-        this.logger.info({err}, 'Dial:_selectSingleDial - Error boosting audio signal');
-      }
-    }
-
    /* if we can release the media back to the SBC, do so now */
-    if (this.canReleaseMedia || this.shouldExitMediaPathEntirely) {
-      setTimeout(this._releaseMedia.bind(this, cs, sd, this.shouldExitMediaPathEntirely), 200);
-    }
-
-    this.sd.ep.once('destroy', this._handleMediaTimeout.bind(this));
-  }
-
-  _handleMediaTimeout(evt) {
-    if (evt.reason === 'MEDIA_TIMEOUT' && this.sd && this.bridged) {
-      this.kill(this.cs, KillReason.MediaTimeout);
-    }
+    if (this.canReleaseMedia) setTimeout(this._releaseMedia.bind(this, cs, sd), 200);
  }

  _bridgeEarlyMedia(sd) {
@@ -917,57 +758,20 @@ class TaskDial extends Task {
    }
  }

-  /* public api */
-  async updateMediaPath(desiredPath) {
-    this.logger.info(`Dial:updateMediaPath - ${this._mediaPath} => ${desiredPath}`);
-    switch (desiredPath) {
-      case MediaPath.NoMedia:
-        assert(this._mediaPath !== MediaPath.NoMedia, 'updateMediaPath: already no-media');
-        await this._releaseMedia(this.cs, this.sd, true);
-        break;
-
-      case MediaPath.PartialMedia:
-        assert(this._mediaPath !== MediaPath.PartialMedia, 'updateMediaPath: already partial-media');
-        if (this._mediaPath === MediaPath.FullMedia) {
-          await this._releaseMedia(this.cs, this.sd, false);
-        }
-        else {
-          // to go from no-media to partial-media we need to go through full-media first
-          await this.reAnchorMedia(this.cs, this.sd);
-          await this._releaseMedia(this.cs, this.sd, false);
-        }
-        assert(!this.epOther, 'updateMediaPath: epOther should be null');
-        assert(!this.ep, 'updateMediaPath: ep should be null');
-
-        break;
-      case MediaPath.FullMedia:
-        assert(this._mediaPath !== MediaPath.FullMedia, 'updateMediaPath: already full-media');
-        await this.reAnchorMedia(this.cs, this.sd);
-        break;
-
-      default:
-        assert(false, `updateMediaPath: invalid path request ${desiredPath}`);
-    }
-  }
-
  /**
   * Release the media from freeswitch
   * @param {*} cs
   * @param {*} sd
   */
-  async _releaseMedia(cs, sd, releaseEntirely = false) {
+  async _releaseMedia(cs, sd) {
    assert(cs.ep && sd.ep);

    try {
-      // Wait until we got new SDP from B leg to ofter to A Leg
      const aLegSdp = cs.ep.remote.sdp;
-      await sd.releaseMediaToSBC(aLegSdp, cs.ep.local.sdp, releaseEntirely);
      const bLegSdp = sd.dlg.remote.sdp;
-      await cs.releaseMediaToSBC(bLegSdp, releaseEntirely);
+      await Promise.all[sd.releaseMediaToSBC(aLegSdp, cs.ep.local.sdp), cs.releaseMediaToSBC(bLegSdp)];
      this.epOther = null;
-      this._mediaPath = releaseEntirely ? MediaPath.NoMedia : MediaPath.PartialMedia;
-      this.logger.info(
-        `Dial:_releaseMedia - successfully released media from freewitch, media path is now ${this._mediaPath}`);
+      this.logger.info('Dial:_releaseMedia - successfully released media from freewitch');
    } catch (err) {
      this.logger.info({err}, 'Dial:_releaseMedia error');
    }
@@ -977,45 +781,27 @@ class TaskDial extends Task {
    if (cs.ep && sd.ep) return;

    this.logger.info('Dial:reAnchorMedia - re-anchoring media to freewitch');
-    await Promise.all([sd.reAnchorMedia(this._mediaPath), cs.reAnchorMedia(this._mediaPath)]);
+    await Promise.all([sd.reAnchorMedia(), cs.reAnchorMedia()]);
    this.epOther = cs.ep;
-
-    this.epOther.bridge(this.ep);
-
-    this._mediaPath = MediaPath.FullMedia;
-    this.logger.info(
-      `Dial:_releaseMedia - successfully re-anchored media to freewitch, media path is now ${this._mediaPath}`);
  }

-  // Handle RE-INVITE hold from caller leg.
  async handleReinviteAfterMediaReleased(req, res) {
    let isHandled = false;
-    if (this.isOnHoldEnabled) {
-      if (isOnhold(req.body)) {
-        if (!this.epOther && !this.ep) {
-          // update callee leg for new SDP from caller.
-          const sdp = await this.dlg.modify(req.body);
-          res.send(200, {body: sdp});
-          // Onhold but media is already released, reconnect
-          await this.reAnchorMedia(this.cs, this.sd);
-          isHandled = true;
-          this.isIncomingLegHold = true;
-        }
-        this._onHoldHook(req);
-      } else if (!isOnhold(req.body)) {
-        if (this.epOther && this.ep && this.isIncomingLegHold &&
-          (this.canReleaseMedia || this.shouldExitMediaPathEntirely)) {
-          // Offhold, time to release media
-          const newSdp = await this.epOther.modify(req.body);
-          await res.send(200, {body: newSdp});
-          await this._releaseMedia(this.cs, this.sd, this.shouldExitMediaPathEntirely);
-          isHandled = true;
-        }
-        this.isIncomingLegHold = false;
-        if (this._onHoldSession) {
-          this._onHoldSession.kill();
-        }
-      }
+    if (isOnhold(req.body) && !this.epOther && !this.ep) {
+      const sdp = await this.dlg.modify(req.body);
+      res.send(200, {body: sdp});
+      // Onhold but media is already released
+      await this.reAnchorMedia(this.cs, this.sd);
+      isHandled = true;
+      this.isIncomingLegHold = true;
+      this._onHoldHook();
+    } else if (!isOnhold(req.body) && this.epOther && this.ep && this.isIncomingLegHold && this.canReleaseMedia) {
+      // Offhold, time to release media
+      const newSdp = await this.epOther.modify(req.body);
+      await res.send(200, {body: newSdp});
+      await this._releaseMedia(this.cs, this.sd);
+      isHandled = true;
+      this.isIncomingLegHold = false;
    }

    if (!isHandled) {
@@ -1034,7 +820,7 @@ class TaskDial extends Task {
      });
  }

-  async _onHoldHook(req, allowed = [TaskName.Play, TaskName.Say, TaskName.Pause]) {
+  async _onHoldHook(allowed = [TaskName.Play, TaskName.Say, TaskName.Pause]) {
    if (this.data.onHoldHook) {
      // send silence for keep Voice quality
      await this.epOther.play('silence_stream://500');
@@ -1044,13 +830,7 @@ class TaskDial extends Task {
          const b3 = this.getTracingPropagation();
          const httpHeaders = b3 && {b3};
          const json = await this.cs.application.requestor.
-            request('verb:hook', this.data.onHoldHook, {
-              ...this.cs.callInfo.toJSON(),
-              hold_detail: {
-                from: req.get('From'),
-                to: req.get('To')
-              }
-            }, httpHeaders);
+            request('verb:hook', this.data.onHoldHook, this.cs.callInfo.toJSON(), httpHeaders);
          const tasks = normalizeJambones(this.logger, json).map((tdata) => makeTask(this.logger, tdata));
          allowedTasks = tasks.filter((t) => allowed.includes(t.name));
          if (tasks.length !== allowedTasks.length) {
@@ -1059,7 +839,7 @@ class TaskDial extends Task {
          }
          this.logger.debug(`DialTask:_onHoldHook: executing ${tasks.length} tasks`);
          if (tasks.length) {
-            this._onHoldSession = new ConfirmCallSession({
+            this._playSession = new ConfirmCallSession({
              logger: this.logger,
              application: this.cs.application,
              dlg: this.isIncomingLegHold ? this.dlg : this.cs.dlg,
@@ -1067,15 +847,14 @@ class TaskDial extends Task {
              callInfo: this.cs.callInfo,
              accountInfo: this.cs.accountInfo,
              tasks,
-              rootSpan: this.cs.rootSpan,
-              req: this.cs.req
+              rootSpan: this.cs.rootSpan
            });
-            await this._onHoldSession.exec();
-            this._onHoldSession = null;
+            await this._playSession.exec();
+            this._playSession = null;
          }
        } catch (error) {
          this.logger.info(error, 'DialTask:_onHoldHook: failed retrieving waitHook');
-          this._onHoldSession = null;
+          this._playSession = null;
          break;
        }
      } while (allowedTasks && allowedTasks.length > 0 && !this.killed && this.isOnHold);
--- a/lib/tasks/dialogflow/index.js
+++ b/lib/tasks/dialogflow/index.js
@@ -58,13 +58,13 @@ class Dialogflow extends Task {
      this.vendor = this.data.tts.vendor || 'default';
      this.language = this.data.tts.language || 'default';
      this.voice = this.data.tts.voice || 'default';
-      this.speechSynthesisLabel = this.data.tts.label;
+      this.speechSynthesisLabel = this.data.tts.label || 'default';

      // fallback tts
      this.fallbackVendor = this.data.tts.fallbackVendor || 'default';
      this.fallbackLanguage = this.data.tts.fallbackLanguage || 'default';
      this.fallbackVoice = this.data.tts.fallbackLanguage || 'default';
-      this.fallbackLabel = this.data.tts.fallbackLabel;
+      this.fallbackLabel = this.data.tts.fallbackLabel || 'default';
    }
    this.bargein = this.data.bargein;
  }
--- a/lib/tasks/dub.js
+++ b/lib/tasks/dub.js
@@ -1,144 +0,0 @@
-const {TaskName} = require('../utils/constants');
-const TtsTask = require('./tts-task');
-const assert = require('assert');
-const parseDecibels = require('../utils/parse-decibels');
-
-/**
- * Dub task: add or remove additional audio tracks into the call
- */
-class TaskDub extends TtsTask {
-  constructor(logger, opts, parentTask) {
-    super(logger, opts, parentTask);
-
-    this.logger.debug({opts: this.data}, 'TaskDub constructor');
-    ['action', 'track', 'play', 'say', 'loop'].forEach((prop) => {
-      this[prop] = this.data[prop];
-    });
-    this.gain = parseDecibels(this.data.gain);
-
-    assert.ok(this.action, 'TaskDub: action is required');
-    assert.ok(this.track, 'TaskDub: track is required');
-  }
-
-  get name() { return TaskName.Dub; }
-
-  async exec(cs, {ep}) {
-    super.exec(cs);
-
-    try {
-      switch (this.action) {
-        case 'addTrack':
-          await this._addTrack(cs, ep);
-          break;
-        case 'removeTrack':
-          await this._removeTrack(cs, ep);
-          break;
-        case 'silenceTrack':
-          await this._silenceTrack(cs, ep);
-          break;
-        case 'playOnTrack':
-          await this._playOnTrack(cs, ep);
-          break;
-        case 'sayOnTrack':
-          await this._sayOnTrack(cs, ep);
-          break;
-        default:
-          throw new Error(`TaskDub: unsupported action ${this.action}`);
-      }
-    } catch (err) {
-      this.logger.error(err, 'Error executing dub task');
-    }
-  }
-
-  async _addTrack(cs, ep) {
-    this.logger.info(`adding track: ${this.track}`);
-    await ep.dub({
-      action: 'addTrack',
-      track: this.track
-    });
-
-    if (this.play) await this._playOnTrack(cs, ep);
-    else if (this.say) await this._sayOnTrack(cs, ep);
-  }
-
-  async _removeTrack(_cs, ep) {
-    this.logger.info(`removing track: ${this.track}`);
-    await ep.dub({
-      action: 'removeTrack',
-      track: this.track
-    });
-  }
-
-  async _silenceTrack(_cs, ep) {
-    this.logger.info(`silencing track: ${this.track}`);
-    await ep.dub({
-      action: 'silenceTrack',
-      track: this.track
-    });
-  }
-
-  async _playOnTrack(_cs, ep) {
-    this.logger.info(`playing on track: ${this.track}`);
-    await ep.dub({
-      action: 'playOnTrack',
-      track: this.track,
-      play: this.play,
-      loop: this.loop ? 'loop' : 'once',
-      gain: this.gain
-    });
-  }
-
-  async _sayOnTrack(cs, ep) {
-    const text = this.say.text || this.say;
-    this.synthesizer = this.say.synthesizer || {};
-
-    if (Object.keys(this.synthesizer).length) {
-      this.logger.info({synthesizer: this.synthesizer},
-        `saying on track ${this.track}: ${text} with synthesizer options`);
-    }
-    else {
-      this.logger.info(`saying on track ${this.track}: ${text}`);
-    }
-    this.synthesizer = this.synthesizer || {};
-
-    this.text = [text];
-
-    const vendor = this.synthesizer.vendor && this.synthesizer.vendor !== 'default' ?
-      this.synthesizer.vendor :
-      cs.speechSynthesisVendor;
-    const language = this.synthesizer.language && this.synthesizer.language !== 'default' ?
-      this.synthesizer.language :
-      cs.speechSynthesisLanguage ;
-    const voice =  this.synthesizer.voice && this.synthesizer.voice !== 'default' ?
-      this.synthesizer.voice :
-      cs.speechSynthesisVoice;
-    const label = this.synthesizer.label && this.synthesizer.label !== 'default' ?
-      this.synthesizer.label :
-      cs.speechSynthesisLabel;
-
-    const disableTtsStreaming = false;
-    const filepath = await this._synthesizeWithSpecificVendor(cs, ep, {
-      vendor, language, voice, label, disableTtsStreaming
-    });
-    assert.ok(filepath.length === 1, 'TaskDub: no filepath returned from synthesizer');
-
-    const path = filepath[0];
-    if (!path.startsWith('say:{')) {
-      /* we have a local file of mp3 or r8 of synthesized speech audio to play */
-      this.logger.info(`playing synthesized speech from file on track ${this.track}: ${path}`);
-      this.play = path;
-      await this._playOnTrack(cs, ep);
-    }
-    else {
-      this.logger.info(`doing actual text to speech file on track ${this.track}: ${path}`);
-      await ep.dub({
-        action: 'sayOnTrack',
-        track: this.track,
-        say: path,
-        gain: this.gain
-      });
-    }
-  }
-}
-
-module.exports = TaskDub;
--- a/lib/tasks/enqueue.js
+++ b/lib/tasks/enqueue.js
@@ -311,8 +311,7 @@ class TaskEnqueue extends Task {
    }
  }

-  async _playHook(cs, dlg, hook,
-    allowed = [TaskName.Play, TaskName.Say, TaskName.Pause, TaskName.Leave, TaskName.Tag]) {
+  async _playHook(cs, dlg, hook, allowed = [TaskName.Play, TaskName.Say, TaskName.Pause, TaskName.Leave]) {
    const {sortedSetLength, sortedSetPositionByPattern} = cs.srf.locals.dbHelpers;
    const b3 = this.getTracingPropagation();
    const httpHeaders = b3 && {b3};
@@ -332,13 +331,11 @@ class TaskEnqueue extends Task {
        queuePosition: queuePosition.length ? queuePosition[0] : 0,
        callSid: this.cs.callSid,
        callId: this.cs.callId,
-        customerData: this.cs.callInfo.customerData
      });
    } catch (err) {
      this.logger.error({err}, `TaskEnqueue:_playHook error retrieving list info for queue ${this.queueName}`);
    }
    const json = await cs.application.requestor.request('verb:hook', hook, params, httpHeaders);
-    this.logger.debug({json}, 'TaskEnqueue:_playHook: received response from waitHook');
    const tasks = normalizeJambones(this.logger, json).map((tdata) => makeTask(this.logger, tdata));

    const allowedTasks = tasks.filter((t) => allowed.includes(t.name));
@@ -369,8 +366,7 @@ class TaskEnqueue extends Task {
        callInfo: cs.callInfo,
        accountInfo: cs.accountInfo,
        tasks: tasksToRun,
-        rootSpan: cs.rootSpan,
-        req: cs.req
+        rootSpan: cs.rootSpan
      });
      await this._playSession.exec();
      this._playSession = null;
--- a/lib/tasks/gather.js
+++ b/lib/tasks/gather.js
--- a/lib/tasks/listen.js
+++ b/lib/tasks/listen.js
@@ -8,10 +8,6 @@ const DTMF_SPAN_NAME = 'dtmf';
 class TaskListen extends Task {
  constructor(logger, opts, parentTask) {
    super(logger, opts);
-    /**
-     * @deprecated
-     * use bidirectionalAudio.enabled
-     */
    this.disableBidirectionalAudio = opts.disableBidirectionalAudio;
    this.preconditions = TaskPreconditions.Endpoint;

@@ -29,15 +25,6 @@ class TaskListen extends Task {
    this.results = {};
    this.playAudioQueue = [];
    this.isPlayingAudioFromQueue = false;
-    this.bidirectionalAudio = {
-      enabled: this.disableBidirectionalAudio === true ? false : true,
-      ...(this.data['bidirectionalAudio']),
-    };
-
-    // From drachtio-version 3.0.40, forkAudioStart will send empty bugname, metadata together with
-    // bidirectionalAudio params that cause old version of freeswitch missunderstand between bugname and
-    // bidirectionalAudio params
-    this._bugname = 'audio_fork';

    if (this.transcribe) this.transcribeTask = makeTask(logger, {'transcribe': opts.transcribe}, this);
  }
@@ -136,6 +123,8 @@ class TaskListen extends Task {
      ci,
      this.metadata);
    if (this.hook.auth) {
+      this.logger.debug({username: this.hook.auth.username, password: this.hook.auth.password},
+        'TaskListen:_startListening basic auth');
      await this.ep.set({
        'MOD_AUDIO_BASIC_AUTH_USERNAME': this.hook.auth.username,
        'MOD_AUDIO_BASIC_AUTH_PASSWORD': this.hook.auth.password
@@ -146,8 +135,7 @@ class TaskListen extends Task {
      mixType: this.mixType,
      sampling: this.sampleRate,
      ...(this._bugname && {bugname: this._bugname}),
-      metadata,
-      bidirectionalAudio: this.bidirectionalAudio || {}
+      metadata
    });
    this.recordStartTime = moment();
    if (this.maxLength) {
@@ -167,7 +155,7 @@ class TaskListen extends Task {
    }

    /* support bi-directional audio */
-    if (this.bidirectionalAudio.enabled) {
+    if (!this.disableBidirectionalAudio) {
      ep.addCustomEventListener(ListenEvents.PlayAudio, this._onPlayAudio.bind(this, ep));
    }
    ep.addCustomEventListener(ListenEvents.KillAudio, this._onKillAudio.bind(this, ep));
--- a/lib/tasks/llm/index.js
+++ b/lib/tasks/llm/index.js
@@ -1,101 +0,0 @@
-const Task = require('../task');
-const {TaskPreconditions} = require('../../utils/constants');
-const TaskLlmOpenAI_S2S = require('./llms/openai_s2s');
-const TaskLlmVoiceAgent_S2S = require('./llms/voice_agent_s2s');
-
-class TaskLlm extends Task {
-  constructor(logger, opts) {
-    super(logger, opts);
-    this.preconditions = TaskPreconditions.Endpoint;
-
-    ['vendor', 'model', 'auth', 'connectOptions'].forEach((prop) => {
-      this[prop] = this.data[prop];
-    });
-
-    this.eventHandlers = [];
-
-    // delegate to the specific llm model
-    this.llm = this.createSpecificLlm();
-  }
-
-  get name() { return this.llm.name ; }
-
-  get toolHook() { return this.llm?.toolHook; }
-
-  get eventHook() { return this.llm?.eventHook; }
-
-  get ep() { return this.cs.ep; }
-
-  async exec(cs, {ep}) {
-    await super.exec(cs, {ep});
-    await this.llm.exec(cs, {ep});
-  }
-
-  async kill(cs) {
-    super.kill(cs);
-    await this.llm.kill(cs);
-  }
-
-  createSpecificLlm() {
-    let llm;
-    switch (this.vendor) {
-      case 'openai':
-      case 'microsoft':
-        llm = new TaskLlmOpenAI_S2S(this.logger, this.data, this);
-        break;
-
-      case 'voiceagent':
-      case 'deepgram':
-        llm = new TaskLlmVoiceAgent_S2S(this.logger, this.data, this);
-        break;
-
-      default:
-        throw new Error(`Unsupported vendor ${this.vendor} for LLM`);
-    }
-
-    if (!llm) {
-      throw new Error(`Unsupported vendor:model ${this.vendor}:${this.model}`);
-    }
-    return llm;
-  }
-
-  addCustomEventListener(ep, event, handler) {
-    this.eventHandlers.push({ep, event, handler});
-    ep.addCustomEventListener(event, handler);
-  }
-
-  removeCustomEventListeners() {
-    this.eventHandlers.forEach((h) => h.ep.removeCustomEventListener(h.event, h.handler));
-  }
-
-  async sendEventHook(data) {
-    await this.cs?.requestor.request('llm:event', this.eventHook, data);
-  }
-
-  async sendToolHook(tool_call_id, data) {
-    await this.cs?.requestor.request('llm:tool-call', this.toolHook, {tool_call_id, ...data});
-  }
-
-  async processToolOutput(tool_call_id, data) {
-    if (!this.ep.connected) {
-      this.logger.info('TaskLlm:processToolOutput - no connected endpoint');
-      return;
-    }
-    this.llm.processToolOutput(this.ep, tool_call_id, data);
-  }
-
-  async processLlmUpdate(data, callSid) {
-    if (this.ep.connected) {
-      if (typeof this.llm.processLlmUpdate === 'function') {
-        this.llm.processLlmUpdate(this.ep, data, callSid);
-      }
-      else {
-        const {vendor, model} = this.llm;
-        this.logger.info({data, callSid},
-          `TaskLlm:_processLlmUpdate: LLM ${vendor}:${model} does not support llm:update`);
-      }
-    }
-  }
-}
-
-module.exports = TaskLlm;
--- a/lib/tasks/llm/llms/openai_s2s.js
+++ b/lib/tasks/llm/llms/openai_s2s.js
@@ -1,357 +0,0 @@
-const Task = require('../../task');
-const TaskName = 'Llm_OpenAI_s2s';
-const {LlmEvents_OpenAI} = require('../../../utils/constants');
-const ClientEvent = 'client.event';
-const SessionDelete = 'session.delete';
-
-const openai_server_events = [
-  'error',
-  'session.created',
-  'session.updated',
-  'conversation.created',
-  'input_audio_buffer.committed',
-  'input_audio_buffer.cleared',
-  'input_audio_buffer.speech_started',
-  'input_audio_buffer.speech_stopped',
-  'conversation.item.created',
-  'conversation.item.input_audio_transcription.completed',
-  'conversation.item.input_audio_transcription.failed',
-  'conversation.item.truncated',
-  'conversation.item.deleted',
-  'response.created',
-  'response.done',
-  'response.output_item.added',
-  'response.output_item.done',
-  'response.content_part.added',
-  'response.content_part.done',
-  'response.text.delta',
-  'response.text.done',
-  'response.audio_transcript.delta',
-  'response.audio_transcript.done',
-  'response.audio.delta',
-  'response.audio.done',
-  'response.function_call_arguments.delta',
-  'response.function_call_arguments.done',
-  'rate_limits.updated',
-  'output_audio.playback_started',
-  'output_audio.playback_stopped',
-];
-
-const expandWildcards = (events) => {
-  const expandedEvents = [];
-
-  events.forEach((evt) => {
-    if (evt.endsWith('.*')) {
-      const prefix = evt.slice(0, -2); // Remove the wildcard ".*"
-      const matchingEvents = openai_server_events.filter((e) => e.startsWith(prefix));
-      expandedEvents.push(...matchingEvents);
-    } else {
-      expandedEvents.push(evt);
-    }
-  });
-
-  return expandedEvents;
-};
-
-class TaskLlmOpenAI_S2S extends Task {
-  constructor(logger, opts, parentTask) {
-    super(logger, opts, parentTask);
-    this.parent = parentTask;
-
-    this.vendor = this.parent.vendor;
-    this.model = this.parent.model || 'gpt-4o-realtime-preview-2024-12-17';
-    this.auth = this.parent.auth;
-    this.connectionOptions = this.parent.connectOptions;
-
-    const {apiKey} = this.auth || {};
-    if (!apiKey) throw new Error('auth.apiKey is required for OpenAI S2S');
-
-    if (['openai', 'microsoft'].indexOf(this.vendor) === -1) {
-      throw new Error(`Invalid vendor ${this.vendor} for OpenAI S2S`);
-    }
-
-    if ('microsoft' === this.vendor && !this.connectionOptions?.host) {
-      throw new Error('connectionOptions.host is required for Microsoft OpenAI S2S');
-    }
-
-    this.apiKey = apiKey;
-    this.authType = 'microsoft' === this.vendor ? 'query' : 'bearer';
-    this.actionHook = this.data.actionHook;
-    this.eventHook = this.data.eventHook;
-    this.toolHook = this.data.toolHook;
-    const {response_create, session_update} = this.data.llmOptions;
-
-    if (typeof response_create !== 'object') {
-      throw new Error('llmOptions with an initial response.create is required for OpenAI S2S');
-    }
-
-    this.response_create = response_create;
-    this.session_update = session_update;
-
-    this.results = {
-      completionReason: 'normal conversation end'
-    };
-
-    /**
-     * only one of these will have items,
-     * if includeEvents, then these are the events to include
-     * if excludeEvents, then these are the events to exclude
-     */
-    this.includeEvents = [];
-    this.excludeEvents = [];
-
-    /* default to all events if user did not specify */
-    this._populateEvents(this.data.events || openai_server_events);
-
-    this.addCustomEventListener = parentTask.addCustomEventListener.bind(parentTask);
-    this.removeCustomEventListeners = parentTask.removeCustomEventListeners.bind(parentTask);
-  }
-
-  get name() { return TaskName; }
-
-  get host() {
-    const {host} = this.connectionOptions || {};
-    return host || (this.vendor === 'openai' ? 'api.openai.com' : void 0);
-  }
-
-  get path() {
-    const {path} = this.connectionOptions || {};
-    if (path) return path;
-
-    switch (this.vendor) {
-      case 'openai':
-        return 'v1/realtime?model=${this.model}';
-      case 'microsoft':
-        return `openai/realtime?api-version=2024-10-01-preview&deployment=${this.model}`;
-    }
-  }
-
-  async _api(ep, args) {
-    const res = await ep.api('uuid_openai_s2s', `^^|${args.join('|')}`);
-    if (!res.body?.startsWith('+OK')) {
-      throw new Error({args}, `Error calling uuid_openai_s2s: ${res.body}`);
-    }
-  }
-
-  async exec(cs, {ep}) {
-    await super.exec(cs);
-
-    await this._startListening(cs, ep);
-
-    await this.awaitTaskDone();
-
-    /* note: the parent llm verb started the span, which is why this is necessary */
-    await this.parent.performAction(this.results);
-
-    this._unregisterHandlers();
-  }
-
-  async kill(cs) {
-    super.kill(cs);
-
-    this._api(cs.ep, [cs.ep.uuid, SessionDelete])
-      .catch((err) => this.logger.info({err}, 'TaskLlmOpenAI_S2S:kill - error deleting session'));
-
-    this.notifyTaskDone();
-  }
-
-  /**
-   * Send function call output to the OpenAI server in the form of conversation.item.create
-   * per https://platform.openai.com/docs/guides/realtime/function-calls
-   */
-  async processToolOutput(ep, tool_call_id, data) {
-    try {
-      this.logger.debug({tool_call_id, data}, 'TaskLlmOpenAI_S2S:processToolOutput');
-
-      if (!data.type || data.type !== 'conversation.item.create') {
-        this.logger.info({data},
-          'TaskLlmOpenAI_S2S:processToolOutput - invalid tool output, must be conversation.item.create');
-      }
-      else {
-        await this._api(ep, [ep.uuid, ClientEvent, JSON.stringify(data)]);
-
-        // spec also recommends to send immediate response.create
-        await this._api(ep, [ep.uuid, ClientEvent, JSON.stringify({type: 'response.create'})]);
-      }
-    } catch (err) {
-      this.logger.info({err}, 'TaskLlmOpenAI_S2S:processToolOutput');
-    }
-  }
-
-  /**
-   * Send a session.update to the OpenAI server
-   * Note: creating and deleting conversation items also supported as well as interrupting the assistant
-   */
-  async processLlmUpdate(ep, data, _callSid) {
-    try {
-      this.logger.debug({data, _callSid}, 'TaskLlmOpenAI_S2S:processLlmUpdate');
-
-      if (!data.type || ![
-        'session.update',
-        'conversation.item.create',
-        'conversation.item.delete',
-        'response.cancel'
-      ].includes(data.type)) {
-        this.logger.info({data}, 'TaskLlmOpenAI_S2S:processLlmUpdate - invalid mid-call request');
-      }
-      else {
-        await this._api(ep, [ep.uuid, ClientEvent, JSON.stringify(data)]);
-      }
-    } catch (err) {
-      this.logger.info({err}, 'TaskLlmOpenAI_S2S:processLlmUpdate');
-    }
-  }
-
-  async _startListening(cs, ep) {
-    this._registerHandlers(ep);
-
-    try {
-      const args = [ep.uuid, 'session.create', this.host, this.path, this.authType, this.apiKey];
-      await this._api(ep, args);
-    } catch (err) {
-      this.logger.error({err}, 'TaskLlmOpenAI_S2S:_startListening');
-      this.notifyTaskDone();
-    }
-  }
-
-  async _sendClientEvent(ep, obj) {
-    let ok = true;
-    this.logger.debug({obj}, 'TaskLlmOpenAI_S2S:_sendClientEvent');
-    try {
-      const args = [ep.uuid, ClientEvent, JSON.stringify(obj)];
-      await this._api(ep, args);
-    } catch (err) {
-      ok = false;
-      this.logger.error({err}, 'TaskLlmOpenAI_S2S:_sendClientEvent - Error');
-    }
-    return ok;
-  }
-
-  async _sendInitialMessage(ep) {
-    let obj = {type: 'response.create', response: this.response_create};
-    if (!await this._sendClientEvent(ep, obj)) {
-      this.notifyTaskDone();
-    }
-
-    /* send immediate session.update if present */
-    else if (this.session_update) {
-      obj = {type: 'session.update', session: this.session_update};
-      this.logger.debug({obj}, 'TaskLlmOpenAI_S2S:_sendInitialMessage - sending session.update');
-      if (!await this._sendClientEvent(ep, obj)) {
-        this.notifyTaskDone();
-      }
-    }
-  }
-
-  _registerHandlers(ep) {
-    this.addCustomEventListener(ep, LlmEvents_OpenAI.Connect, this._onConnect.bind(this, ep));
-    this.addCustomEventListener(ep, LlmEvents_OpenAI.ConnectFailure, this._onConnectFailure.bind(this, ep));
-    this.addCustomEventListener(ep, LlmEvents_OpenAI.Disconnect, this._onDisconnect.bind(this, ep));
-    this.addCustomEventListener(ep, LlmEvents_OpenAI.ServerEvent, this._onServerEvent.bind(this, ep));
-  }
-
-  _unregisterHandlers() {
-    this.removeCustomEventListeners();
-  }
-
-  _onError(ep, evt) {
-    this.logger.info({evt}, 'TaskLlmOpenAI_S2S:_onError');
-    this.notifyTaskDone();
-  }
-
-  _onConnect(ep) {
-    this.logger.debug('TaskLlmOpenAI_S2S:_onConnect');
-    this._sendInitialMessage(ep);
-  }
-  _onConnectFailure(_ep, evt) {
-    this.logger.info(evt, 'TaskLlmOpenAI_S2S:_onConnectFailure');
-    this.results = {completionReason: 'connection failure'};
-    this.notifyTaskDone();
-  }
-  _onDisconnect(_ep, evt) {
-    this.logger.info(evt, 'TaskLlmOpenAI_S2S:_onConnectFailure');
-    this.results = {completionReason: 'disconnect from remote end'};
-    this.notifyTaskDone();
-  }
-  async _onServerEvent(ep, evt) {
-    let endConversation = false;
-    const type = evt.type;
-    this.logger.info({evt}, 'TaskLlmOpenAI_S2S:_onServerEvent');
-
-    /* check for failures, such as rate limit exceeded, that should terminate the conversation */
-    if (type === 'response.done' && evt.response.status === 'failed') {
-      endConversation = true;
-      this.results = {
-        completionReason: 'server failure',
-        error: evt.response.status_details?.error
-      };
-    }
-
-    /* server errors of some sort */
-    else if (type === 'error') {
-      endConversation = true;
-      this.results = {
-        completionReason: 'server error',
-        error: evt.error
-      };
-    }
-
-    /* tool calls */
-    else if (type === 'response.output_item.done' && evt.item?.type === 'function_call') {
-      this.logger.debug({evt}, 'TaskLlmOpenAI_S2S:_onServerEvent - function_call');
-      if (!this.toolHook) {
-        this.logger.warn({evt}, 'TaskLlmOpenAI_S2S:_onServerEvent - no toolHook defined!');
-      }
-      else {
-        const {name, call_id} = evt.item;
-        const args = JSON.parse(evt.item.arguments);
-
-        try {
-          await this.parent.sendToolHook(call_id, {name, args});
-        } catch (err) {
-          this.logger.info({err, evt}, 'TaskLlmOpenAI - error calling function');
-          this.results = {
-            completionReason: 'client error calling function',
-            error: err
-          };
-          endConversation = true;
-        }
-      }
-    }
-
-    /* check whether we should notify on this event */
-    if (this.includeEvents.length > 0 ? this.includeEvents.includes(type) : !this.excludeEvents.includes(type)) {
-      this.parent.sendEventHook(evt)
-        .catch((err) => this.logger.info({err}, 'TaskLlmOpenAI_S2S:_onServerEvent - error sending event hook'));
-    }
-
-    if (endConversation) {
-      this.logger.info({results: this.results}, 'TaskLlmOpenAI_S2S:_onServerEvent - ending conversation due to error');
-      this.notifyTaskDone();
-    }
-  }
-
-  _populateEvents(events) {
-    if (events.includes('all')) {
-      /* work by excluding specific events */
-      const exclude = events
-        .filter((evt) => evt.startsWith('-'))
-        .map((evt) => evt.slice(1));
-      if (exclude.length === 0) this.includeEvents = openai_server_events;
-      else this.excludeEvents = expandWildcards(exclude);
-    }
-    else {
-      /* work by including specific events */
-      const include = events
-        .filter((evt) => !evt.startsWith('-'));
-      this.includeEvents = expandWildcards(include);
-    }
-
-    this.logger.debug({
-      includeEvents: this.includeEvents,
-      excludeEvents: this.excludeEvents
-    }, 'TaskLlmOpenAI_S2S:_populateEvents');
-  }
-}
-
-module.exports = TaskLlmOpenAI_S2S;
--- a/lib/tasks/llm/llms/voice_agent_s2s.js
+++ b/lib/tasks/llm/llms/voice_agent_s2s.js
@@ -1,313 +0,0 @@
-const Task = require('../../task');
-const TaskName = 'Llm_VoiceAgent_s2s';
-const {LlmEvents_VoiceAgent} = require('../../../utils/constants');
-const ClientEvent = 'client.event';
-const SessionDelete = 'session.delete';
-
-const va_server_events = [
-  'Error',
-  'Welcome',
-  'SettingsApplied',
-  'ConversationText',
-  'UserStartedSpeaking',
-  'EndOfThought',
-  'AgentThinking',
-  'FunctionCallRequest',
-  'FunctionCalling',
-  'AgentStartedSpeaking',
-  'AgentAudioDone',
-];
-
-const expandWildcards = (events) => {
-  // no-op for deepgram
-  return events;
-};
-
-class TaskLlmVoiceAgent_S2S extends Task {
-  constructor(logger, opts, parentTask) {
-    super(logger, opts, parentTask);
-    this.parent = parentTask;
-
-    this.vendor = this.parent.vendor;
-    this.model = this.parent.model;
-    this.auth = this.parent.auth;
-    this.connectionOptions = this.parent.connectOptions;
-
-    const {apiKey} = this.auth || {};
-    if (!apiKey) throw new Error('auth.apiKey is required for VoiceAgent S2S');
-
-    this.apiKey = apiKey;
-    this.authType = 'bearer';
-    this.actionHook = this.data.actionHook;
-    this.eventHook = this.data.eventHook;
-    this.toolHook = this.data.toolHook;
-    const {settingsConfiguration} = this.data.llmOptions;
-
-    if (typeof settingsConfiguration !== 'object') {
-      throw new Error('llmOptions with an initial settingsConfiguration is required for VoiceAgent S2S');
-    }
-
-    // eslint-disable-next-line no-unused-vars
-    const {audio, ...rest} = settingsConfiguration;
-    const cfg = this.settingsConfiguration = rest;
-
-    if (!cfg.agent) throw new Error('llmOptions.settingsConfiguration.agent is required for VoiceAgent S2S');
-    if (!cfg.agent.think) {
-      throw new Error('llmOptions.settingsConfiguration.agent.think is required for VoiceAgent S2S');
-    }
-    if (!cfg.agent.think.model) {
-      throw new Error('llmOptions.settingsConfiguration.agent.think.model is required for VoiceAgent S2S');
-    }
-    if (!cfg.agent.think.provider?.type) {
-      throw new Error('llmOptions.settingsConfiguration.agent.think.provider.type is required for VoiceAgent S2S');
-    }
-
-    this.results = {
-      completionReason: 'normal conversation end'
-    };
-
-    /**
-     * only one of these will have items,
-     * if includeEvents, then these are the events to include
-     * if excludeEvents, then these are the events to exclude
-     */
-    this.includeEvents = [];
-    this.excludeEvents = [];
-
-    /* default to all events if user did not specify */
-    this._populateEvents(this.data.events || va_server_events);
-
-    this.addCustomEventListener = parentTask.addCustomEventListener.bind(parentTask);
-    this.removeCustomEventListeners = parentTask.removeCustomEventListeners.bind(parentTask);
-  }
-
-  get name() { return TaskName; }
-
-  get host() {
-    const {host} = this.connectionOptions || {};
-    return host || 'agent.deepgram.com';
-  }
-
-  get path() {
-    const {path} = this.connectionOptions || {};
-    if (path) return path;
-
-    return '/agent';
-  }
-
-  async _api(ep, args) {
-    const res = await ep.api('uuid_voice_agent_s2s', `^^|${args.join('|')}`);
-    if (!res.body?.startsWith('+OK')) {
-      throw new Error(`Error calling uuid_voice_agent_s2s: ${JSON.stringify(res.body)}`);
-    }
-  }
-
-  async exec(cs, {ep}) {
-    await super.exec(cs);
-
-    await this._startListening(cs, ep);
-
-    await this.awaitTaskDone();
-
-    /* note: the parent llm verb started the span, which is why this is necessary */
-    await this.parent.performAction(this.results);
-
-    this._unregisterHandlers();
-  }
-
-  async kill(cs) {
-    super.kill(cs);
-
-    this._api(cs.ep, [cs.ep.uuid, SessionDelete])
-      .catch((err) => this.logger.info({err}, 'TaskLlmVoiceAgent_S2S:kill - error deleting session'));
-
-    this.notifyTaskDone();
-  }
-
-  /**
-   * Send function call response to the VoiceAgent server
-   */
-  async processToolOutput(ep, tool_call_id, data) {
-    try {
-      const {data:response} = data;
-      this.logger.debug({tool_call_id, response}, 'TaskLlmVoiceAgent_S2S:processToolOutput');
-
-      if (!response.type || response.type !== 'FunctionCallResponse') {
-        this.logger.info({response},
-          'TaskLlmVoiceAgent_S2S:processToolOutput - invalid tool output, must be FunctionCallResponse');
-      }
-      else {
-        await this._api(ep, [ep.uuid, ClientEvent, JSON.stringify(response)]);
-      }
-    } catch (err) {
-      this.logger.info({err}, 'TaskLlmVoiceAgent_S2S:processToolOutput');
-    }
-  }
-
-  /**
-   * Send a session.update to the VoiceAgent server
-   * Note: creating and deleting conversation items also supported as well as interrupting the assistant
-   */
-  async processLlmUpdate(ep, data, _callSid) {
-    try {
-      this.logger.debug({data, _callSid}, 'TaskLlmVoiceAgent_S2S:processLlmUpdate');
-
-      if (!data.type || ![
-        'UpdateInstructions',
-        'UpdateSpeak',
-        'InjectAgentMessage',
-      ].includes(data.type)) {
-        this.logger.info({data}, 'TaskLlmVoiceAgent_S2S:processLlmUpdate - invalid mid-call request');
-      }
-      else {
-        await this._api(ep, [ep.uuid, ClientEvent, JSON.stringify(data)]);
-      }
-    } catch (err) {
-      this.logger.info({err}, 'TaskLlmVoiceAgent_S2S:processLlmUpdate');
-    }
-  }
-
-  async _startListening(cs, ep) {
-    this._registerHandlers(ep);
-
-    try {
-      const args = [ep.uuid, 'session.create', this.host, this.path, this.authType, this.apiKey];
-      await this._api(ep, args);
-    } catch (err) {
-      this.logger.error({err}, `TaskLlmVoiceAgent_S2S:_startListening: ${JSON.stringify(err)}`);
-      this.notifyTaskDone();
-    }
-  }
-
-  async _sendClientEvent(ep, obj) {
-    let ok = true;
-    this.logger.debug({obj}, 'TaskLlmVoiceAgent_S2S:_sendClientEvent');
-    try {
-      const args = [ep.uuid, ClientEvent, JSON.stringify(obj)];
-      await this._api(ep, args);
-    } catch (err) {
-      ok = false;
-      this.logger.error({err}, 'TaskLlmVoiceAgent_S2S:_sendClientEvent - Error');
-    }
-    return ok;
-  }
-
-  async _sendInitialMessage(ep) {
-    if (!await this._sendClientEvent(ep, this.settingsConfiguration)) {
-      this.notifyTaskDone();
-    }
-  }
-
-  _registerHandlers(ep) {
-    this.addCustomEventListener(ep, LlmEvents_VoiceAgent.Connect, this._onConnect.bind(this, ep));
-    this.addCustomEventListener(ep, LlmEvents_VoiceAgent.ConnectFailure, this._onConnectFailure.bind(this, ep));
-    this.addCustomEventListener(ep, LlmEvents_VoiceAgent.Disconnect, this._onDisconnect.bind(this, ep));
-    this.addCustomEventListener(ep, LlmEvents_VoiceAgent.ServerEvent, this._onServerEvent.bind(this, ep));
-  }
-
-  _unregisterHandlers() {
-    this.removeCustomEventListeners();
-  }
-
-  _onError(_ep, evt) {
-    this.logger.info({evt}, 'TaskLlmVoiceAgent_S2S:_onError');
-    this.notifyTaskDone();
-  }
-
-  _onConnect(ep) {
-    this.logger.debug('TaskLlmVoiceAgent_S2S:_onConnect');
-    this._sendInitialMessage(ep);
-  }
-  _onConnectFailure(_ep, evt) {
-    this.logger.info(evt, 'TaskLlmVoiceAgent_S2S:_onConnectFailure');
-    this.results = {completionReason: 'connection failure'};
-    this.notifyTaskDone();
-  }
-  _onDisconnect(_ep, evt) {
-    this.logger.info(evt, 'TaskLlmVoiceAgent_S2S:_onConnectFailure');
-    this.results = {completionReason: 'disconnect from remote end'};
-    this.notifyTaskDone();
-  }
-  async _onServerEvent(_ep, evt) {
-    let endConversation = false;
-    const type = evt.type;
-    this.logger.info({evt}, 'TaskLlmVoiceAgent_S2S:_onServerEvent');
-
-    /* check for failures, such as rate limit exceeded, that should terminate the conversation */
-    if (type === 'response.done' && evt.response.status === 'failed') {
-      endConversation = true;
-      this.results = {
-        completionReason: 'server failure',
-        error: evt.response.status_details?.error
-      };
-    }
-
-    /* server errors of some sort */
-    else if (type === 'error') {
-      endConversation = true;
-      this.results = {
-        completionReason: 'server error',
-        error: evt.error
-      };
-    }
-
-    /* tool calls */
-    else if (type === 'FunctionCallRequest') {
-      this.logger.debug({evt}, 'TaskLlmVoiceAgent_S2S:_onServerEvent - function_call');
-      if (!this.toolHook) {
-        this.logger.warn({evt}, 'TaskLlmVoiceAgent_S2S:_onServerEvent - no toolHook defined!');
-      }
-      else {
-        const {function_name:name, function_call_id:call_id} = evt;
-        const args = evt.input;
-
-        try {
-          await this.parent.sendToolHook(call_id, {name, args});
-        } catch (err) {
-          this.logger.info({err, evt}, 'TaskLlmVoiceAgent - error calling function');
-          this.results = {
-            completionReason: 'client error calling function',
-            error: err
-          };
-          endConversation = true;
-        }
-      }
-    }
-
-    /* check whether we should notify on this event */
-    if (this.includeEvents.length > 0 ? this.includeEvents.includes(type) : !this.excludeEvents.includes(type)) {
-      this.parent.sendEventHook(evt)
-        .catch((err) => this.logger.info({err}, 'TaskLlmVoiceAgent_S2S:_onServerEvent - error sending event hook'));
-    }
-
-    if (endConversation) {
-      this.logger.info({results: this.results},
-        'TaskLlmVoiceAgent_S2S:_onServerEvent - ending conversation due to error');
-      this.notifyTaskDone();
-    }
-  }
-
-  _populateEvents(events) {
-    if (events.includes('all')) {
-      /* work by excluding specific events */
-      const exclude = events
-        .filter((evt) => evt.startsWith('-'))
-        .map((evt) => evt.slice(1));
-      if (exclude.length === 0) this.includeEvents = va_server_events;
-      else this.excludeEvents = expandWildcards(exclude);
-    }
-    else {
-      /* work by including specific events */
-      const include = events
-        .filter((evt) => !evt.startsWith('-'));
-      this.includeEvents = expandWildcards(include);
-    }
-
-    this.logger.debug({
-      includeEvents: this.includeEvents,
-      excludeEvents: this.excludeEvents
-    }, 'TaskLlmVoiceAgent_S2S:_populateEvents');
-  }
-}
-
-module.exports = TaskLlmVoiceAgent_S2S;
--- a/lib/tasks/make_task.js
+++ b/lib/tasks/make_task.js
@@ -14,9 +14,6 @@ function makeTask(logger, obj, parent) {
  }
  validateVerb(name, data, logger);
  switch (name) {
-    case TaskName.Answer:
-      const TaskAnswer = require('./answer');
-      return new TaskAnswer(logger, data, parent);
    case TaskName.SipDecline:
      const TaskSipDecline = require('./sip_decline');
      return new TaskSipDecline(logger, data, parent);
@@ -44,9 +41,6 @@ function makeTask(logger, obj, parent) {
    case TaskName.Dtmf:
      const TaskDtmf = require('./dtmf');
      return new TaskDtmf(logger, data, parent);
-    case TaskName.Dub:
-      const TaskDub = require('./dub');
-      return new TaskDub(logger, data, parent);
    case TaskName.Enqueue:
      const TaskEnqueue = require('./enqueue');
      return new TaskEnqueue(logger, data, parent);
@@ -62,9 +56,6 @@ function makeTask(logger, obj, parent) {
    case TaskName.Message:
      const TaskMessage = require('./message');
      return new TaskMessage(logger, data, parent);
-    case TaskName.Llm:
-      const TaskLlm = require('./llm');
-      return new TaskLlm(logger, data, parent);
    case TaskName.Rasa:
      const TaskRasa = require('./rasa');
      return new TaskRasa(logger, data, parent);
--- a/lib/tasks/play.js
+++ b/lib/tasks/play.js
@@ -1,6 +1,5 @@
 const Task = require('./task');
 const {TaskName, TaskPreconditions} = require('../utils/constants');
-const { PlayFileNotFoundError } = require('../utils/error');

 class TaskPlay extends Task {
  constructor(logger, opts) {
@@ -67,20 +66,8 @@ class TaskPlay extends Task {
        }
      }
    } catch (err) {
-      this.logger.info(`TaskPlay:exec - error playing ${this.url}: ${err.message}`);
-      this.playComplete = true;
-      if (err.message === 'File Not Found') {
-        const {writeAlerts, AlertType} = cs.srf.locals;
-        await this.performAction({status: 'fail', reason: 'playFailed'}, !(this.parentTask || cs.isConfirmCallSession));
-        this.emit('playDone');
-        writeAlerts({
-          account_sid: cs.accountSid,
-          alert_type: AlertType.PLAY_FILENOTFOUND,
-          url: this.url,
-          target_sid: cs.callSid
-        });
-        throw new PlayFileNotFoundError(this.url);
-      }
+      if (timeout) clearTimeout(timeout);
+      this.logger.info(err, `TaskPlay:exec - error playing ${this.url}`);
    }
    this.emit('playDone');
  }
--- a/lib/tasks/redirect.js
+++ b/lib/tasks/redirect.js
@@ -1,6 +1,5 @@
 const Task = require('./task');
 const {TaskName} = require('../utils/constants');
-const WsRequestor = require('../utils/ws-requestor');

 /**
 * Redirects to a new application
@@ -14,17 +13,6 @@ class TaskRedirect extends Task {

  async exec(cs) {
    await super.exec(cs);
-
-    if (cs.requestor instanceof WsRequestor && cs.application.requestor._isAbsoluteUrl(this.actionHook)) {
-      this.logger.info(`Task:performAction redirecting to ${this.actionHook}, requires new ws connection`);
-      try {
-        this.cs.requestor.close();
-        const requestor = new WsRequestor(this.logger, cs.accountSid, {url: this.actionHook}, this.webhook_secret) ;
-        this.cs.application.requestor = requestor;
-      } catch (err) {
-        this.logger.info(err, `Task:performAction error redirecting to ${this.actionHook}`);
-      }
-    }
    await this.performAction();
  }
 }
--- a/lib/tasks/rest_dial.js
+++ b/lib/tasks/rest_dial.js
@@ -12,13 +12,10 @@ class TaskRestDial extends Task {

    this.from = this.data.from;
    this.callerName = this.data.callerName;
-    this.timeLimit = this.data.timeLimit;
    this.fromHost = this.data.fromHost;
    this.to = this.data.to;
    this.call_hook = this.data.call_hook;
    this.timeout = this.data.timeout || 60;
-    this.sipRequestWithinDialogHook = this.data.sipRequestWithinDialogHook;
-    this.referHook = this.data.referHook;

    this.on('connect', this._onConnect.bind(this));
    this.on('callStatus', this._onCallStatus.bind(this));
@@ -40,9 +37,9 @@ class TaskRestDial extends Task {

    if (this.data.amd) {
      this.startAmd = cs.startAmd;
+      this.stopAmd = cs.stopAmd;
      this.on('amd', this._onAmdEvent.bind(this, cs));
    }
-    this.stopAmd = cs.stopAmd;

    this._setCallTimer();
    await this.awaitTaskDone();
@@ -66,12 +63,8 @@ class TaskRestDial extends Task {
    this.canCancel = false;
    const cs = this.callSession;
    cs.setDialog(dlg);
-    cs.referHook = this.referHook;
-    if (this.timeLimit) {
-      cs.startMaxCallDurationTimer(this.timeLimit);
-    }
    this.logger.debug('TaskRestDial:_onConnect - call connected');
-    if (this.sipRequestWithinDialogHook) this._initSipRequestWithinDialogHandler(cs, dlg);
+
    try {
      const b3 = this.getTracingPropagation();
      const httpHeaders = b3 && {b3};
@@ -81,13 +74,11 @@ class TaskRestDial extends Task {
          synthesizer: {
            vendor: cs.speechSynthesisVendor,
            language: cs.speechSynthesisLanguage,
-            voice: cs.speechSynthesisVoice,
-            label: cs.speechSynthesisLabel,
+            voice: cs.speechSynthesisVoice
          },
          recognizer: {
            vendor:  cs.speechRecognizerVendor,
-            language: cs.speechRecognizerLanguage,
-            label: cs.speechRecognizerLabel,
+            language: cs.speechRecognizerLanguage
          }
        }
      };
@@ -151,16 +142,6 @@ class TaskRestDial extends Task {
        this.logger.error({err}, 'Rest:dial:_onAmdEvent - error calling actionHook');
      });
  }
-
-  _initSipRequestWithinDialogHandler(cs, dlg) {
-    cs.sipRequestWithinDialogHook = this.sipRequestWithinDialogHook;
-    dlg.on('info', this._onRequestWithinDialog.bind(this, cs));
-    dlg.on('message', this._onRequestWithinDialog.bind(this, cs));
-  }
-
-  async _onRequestWithinDialog(cs, req, res) {
-    cs._onRequestWithinDialog(req, res);
-  }
 }

 module.exports = TaskRestDial;
--- a/lib/tasks/say.js
+++ b/lib/tasks/say.js
@@ -1,8 +1,6 @@
-const assert = require('assert');
-const TtsTask = require('./tts-task');
+const Task = require('./task');
 const {TaskName, TaskPreconditions} = require('../utils/constants');
 const pollySSMLSplit = require('polly-ssml-split');
-const { SpeechCredentialError } = require('../utils/error');

 const breakLengthyTextIfNeeded = (logger,  text) => {
  const chunkSize = 1000;
@@ -25,51 +23,33 @@ const breakLengthyTextIfNeeded = (logger,  text) => {
  }
 };

-const parseTextFromSayString = (text) => {
-  const closingBraceIndex = text.indexOf('}');
-  if (closingBraceIndex === -1) return text;
-  return text.slice(closingBraceIndex + 1);
-};
-
-class TaskSay extends TtsTask {
+class TaskSay extends Task {
  constructor(logger, opts, parentTask) {
-    super(logger, opts, parentTask);
+    super(logger, opts);
    this.preconditions = TaskPreconditions.Endpoint;

-    assert.ok((typeof this.data.text === 'string' || Array.isArray(this.data.text)) || this.data.stream === true,
-      'Say: either text or stream:true is required');
+    this.text = (Array.isArray(this.data.text) ? this.data.text : [this.data.text])
+      .map((t) => breakLengthyTextIfNeeded(this.logger, t))
+      .flat();

-
-    if (this.data.stream === true) {
-      this._isStreamingTts = true;
-      this.closeOnStreamEmpty = this.data.closeOnStreamEmpty !== false;
-    }
-    else {
-      this._isStreamingTts = false;
-      this.text = (Array.isArray(this.data.text) ? this.data.text : [this.data.text])
-        .map((t) => breakLengthyTextIfNeeded(this.logger, t))
-        .flat();
-
-      this.loop = this.data.loop || 1;
-      this.isHandledByPrimaryProvider = true;
-    }
+    this.loop = this.data.loop || 1;
+    this.earlyMedia = this.data.earlyMedia === true || (parentTask && parentTask.earlyMedia);
+    this.synthesizer = this.data.synthesizer || {};
+    this.disableTtsCache = this.data.disableTtsCache;
+    this.options = this.synthesizer.options || {};
+    this.isHandledByPrimaryProvider = true;
  }

  get name() { return TaskName.Say; }

  get summary() {
-    if (this.isStreamingTts) return `${this.name} streaming`;
-    else {
-      for (let i = 0; i < this.text.length; i++) {
-        if (this.text[i].startsWith('silence_stream')) continue;
-        return `${this.name}{text=${this.text[i].slice(0, 15)}${this.text[i].length > 15 ? '...' : ''}}`;
-      }
-      return `${this.name}{${this.text[0]}}`;
+    for (let i = 0; i < this.text.length; i++) {
+      if (this.text[i].startsWith('silence_stream')) continue;
+      return `${this.name}{text=${this.text[i].slice(0, 15)}${this.text[i].length > 15 ? '...' : ''}}`;
    }
+    return `${this.name}{${this.text[0]}}`;
  }

-  get isStreamingTts() { return this._isStreamingTts; }
-
  _validateURL(urlString) {
    try {
      new URL(urlString);
@@ -79,75 +59,134 @@ class TaskSay extends TtsTask {
    }
  }

-  async exec(cs, obj) {
-    if (this.isStreamingTts && !cs.appIsUsingWebsockets) {
-      throw new Error('Say: streaming say verb requires applications to use the websocket API');
-    }
+  async _synthesizeWithSpecificVendor(cs, ep, {vendor, language, voice, label}) {
+    const {srf} = cs;
+    const {updateSpeechCredentialLastUsed} = require('../utils/db-utils')(this.logger, srf);
+    const {writeAlerts, AlertType, stats} = srf.locals;
+    const {synthAudio} = srf.locals.dbHelpers;
+    const engine = this.synthesizer.engine || 'standard';
+    const salt = cs.callSid;

-    try {
-      if (this.isStreamingTts) await this.handlingStreaming(cs, obj);
-      else await this.handling(cs, obj);
-      this.emit('playDone');
-    } catch (error) {
-      if (error instanceof SpeechCredentialError) {
-        // if say failed due to speech credentials, alarm is writtern and error notification is sent
-        // finished this say to move to next task.
-        this.logger.info({error}, 'Say failed due to SpeechCredentialError, finished!');
-        this.emit('playDone');
-        return;
+    let credentials = cs.getSpeechCredentials(vendor, 'tts', label);
+    /* parse Nuance voices into name and model */
+    let model;
+    if (vendor === 'nuance' && voice) {
+      const arr = /([A-Za-z-]*)\s+-\s+(enhanced|standard)/.exec(voice);
+      if (arr) {
+        voice = arr[1];
+        model = arr[2];
      }
-      throw error;
-    }
-  }
-
-  async handlingStreaming(cs, {ep}) {
-    const {vendor, language, voice, label} = this.getTtsVendorData(cs);
-    const  credentials = cs.getSpeechCredentials(vendor, 'tts', label);
-    if (!credentials) {
-      throw new SpeechCredentialError(
-        `No text-to-speech service credentials for ${vendor} with labels: ${label} have been configured`);
    }

+    /* allow for microsoft custom region voice and api_key to be specified as an override */
+    if (vendor === 'microsoft' && this.options.deploymentId) {
+      credentials = credentials || {};
+      credentials.use_custom_tts = true;
+      credentials.custom_tts_endpoint = this.options.deploymentId;
+      credentials.api_key = this.options.apiKey || credentials.apiKey;
+      credentials.region = this.options.region || credentials.region;
+      voice = this.options.voice || voice;
+    }
+
+    this.logger.info({vendor, language, voice, model}, 'TaskSay:exec');
    try {
+      if (!credentials) {
+        writeAlerts({
+          account_sid: cs.accountSid,
+          alert_type: AlertType.TTS_NOT_PROVISIONED,
+          vendor
+        }).catch((err) => this.logger.info({err}, 'Error generating alert for no tts'));
+        this.notifyError({
+          msg: 'TTS error',
+          details:`No speech credentials provisioned for selected vendor ${vendor}`
+        });
+        throw new Error('no provisioned speech credentials for TTS');
+      }
+      // synthesize all of the text elements
+      let lastUpdated = false;

-      await this.setTtsStreamingChannelVars(vendor, language, voice, credentials, ep);
+      /* produce an audio segment from the provided text */
+      const generateAudio = async(text) => {
+        if (this.killed) return;
+        if (text.startsWith('silence_stream://')) return text;

-      await cs.startTtsStream();
+        /* otel: trace time for tts */
+        const {span} = this.startChildSpan('tts-generation', {
+          'tts.vendor': vendor,
+          'tts.language': language,
+          'tts.voice': voice
+        });
+        try {
+          const {filePath, servedFromCache, rtt} = await synthAudio(stats, {
+            account_sid: cs.accountSid,
+            text,
+            vendor,
+            language,
+            voice,
+            engine,
+            model,
+            salt,
+            credentials,
+            disableTtsCache : this.disableTtsCache
+          });
+          this.logger.debug(`file ${filePath}, served from cache ${servedFromCache}`);
+          if (filePath) cs.trackTmpFile(filePath);
+          if (!servedFromCache && !lastUpdated) {
+            lastUpdated = true;
+            updateSpeechCredentialLastUsed(credentials.speech_credential_sid)
+              .catch(() => {/*already logged error */});
+          }
+          span.setAttributes({'tts.cached': servedFromCache});
+          span.end();
+          if (!servedFromCache && rtt) {
+            this.notifyStatus({
+              event: 'synthesized-audio',
+              vendor,
+              language,
+              characters: text.length,
+              elapsedTime: rtt
+            });
+          }
+          return filePath;
+        } catch (err) {
+          this.logger.info({err}, 'Error synthesizing tts');
+          span.end();
+          writeAlerts({
+            account_sid: cs.accountSid,
+            alert_type: AlertType.TTS_FAILURE,
+            vendor,
+            detail: err.message
+          }).catch((err) => this.logger.info({err}, 'Error generating alert for tts failure'));
+          this.notifyError({msg: 'TTS error', details: err.message || err});
+          throw err;
+        }
+      };

-      cs.requestor?.request('tts:streaming-event', '/streaming-event', {event_type: 'stream_open'})
-        .catch((err) => this.logger.info({err}, 'TaskSay:handlingStreaming - Error sending'));
+      const arr = this.text.map((t) => (this._validateURL(t) ? t : generateAudio(t)));
+      return (await Promise.all(arr)).filter((fp) => fp && fp.length);
    } catch (err) {
-      this.logger.info({err}, 'TaskSay:handlingStreaming - Error setting channel vars');
-      cs.requestor?.request('tts:streaming-event', '/streaming-event', {event_type: 'stream_closed'})
-        .catch((err) => this.logger.info({err}, 'TaskSay:handlingStreaming - Error sending'));
-
-      //TODO: send tts:streaming-event with error?
-      this.notifyTaskDone();
+      this.logger.info(err, 'TaskSay:exec error');
+      throw err;
    }

-    await this.awaitTaskDone();
-    this.logger.info('TaskSay:handlingStreaming - done');
  }

-  async handling(cs, {ep}) {
-    const {srf, accountSid:account_sid, callSid:target_sid} = cs;
-    const {writeAlerts, AlertType} = srf.locals;
-    const {addFileToCache} = srf.locals.dbHelpers;
-    const engine = this.synthesizer.engine || cs.synthesizer?.engine || 'neural';
-
+  async exec(cs, {ep}) {
    await super.exec(cs);
    this.ep = ep;

-    let vendor = this.synthesizer.vendor && this.synthesizer.vendor !== 'default' ?
+    const vendor = this.synthesizer.vendor && this.synthesizer.vendor !== 'default' ?
      this.synthesizer.vendor :
      cs.speechSynthesisVendor;
-    let language = this.synthesizer.language && this.synthesizer.language !== 'default' ?
+    const language = this.synthesizer.language && this.synthesizer.language !== 'default' ?
      this.synthesizer.language :
      cs.speechSynthesisLanguage ;
-    let voice =  this.synthesizer.voice && this.synthesizer.voice !== 'default' ?
+    const voice =  this.synthesizer.voice && this.synthesizer.voice !== 'default' ?
      this.synthesizer.voice :
      cs.speechSynthesisVoice;
-    let label = this.taskIncludeSynthesizer ? this.synthesizer.label : cs.speechSynthesisLabel;
+    const label = this.synthesizer.label && this.synthesizer.label !== 'default' ?
+      this.synthesizer.label :
+      cs.speechSynthesisLabel;

    const fallbackVendor = this.synthesizer.fallbackVendor && this.synthesizer.fallbackVendor !== 'default' ?
      this.synthesizer.fallbackVendor :
@@ -158,22 +197,16 @@ class TaskSay extends TtsTask {
    const fallbackVoice =  this.synthesizer.fallbackVoice && this.synthesizer.fallbackVoice !== 'default' ?
      this.synthesizer.fallbackVoice :
      cs.fallbackSpeechSynthesisVoice;
-    const fallbackLabel = this.taskIncludeSynthesizer ?
-      this.synthesizer.fallbackLabel : cs.fallbackSpeechSynthesisLabel;
+    const fallbackLabel = this.synthesizer.fallbackLabel && this.synthesizer.fallbackLabel !== 'default' ?
+      this.synthesizer.fallbackLabel :
+      cs.fallbackSpeechSynthesisLabel;

-    if (cs.hasFallbackTts) {
-      vendor = fallbackVendor;
-      language = fallbackLanguage;
-      voice = fallbackVoice;
-      label = fallbackLabel;
-    }
-
-    const startFallback = async(error) => {
-      if (fallbackVendor && this.isHandledByPrimaryProvider && !cs.hasFallbackTts) {
-        this.notifyError(
-          { msg: 'TTS error', details:`TTS vendor ${vendor} error: ${error}`, failover: 'in progress'});
+    let filepath;
+    try {
+      filepath = await this._synthesizeWithSpecificVendor(cs, ep, {vendor, language, voice, label});
+    } catch (error) {
+      if (fallbackVendor && this.isHandledByPrimaryProvider) {
        this.isHandledByPrimaryProvider = false;
-        cs.hasFallbackTts = true;
        this.logger.info(`Synthesize error, fallback to ${fallbackVendor}`);
        filepath = await this._synthesizeWithSpecificVendor(cs, ep,
          {
@@ -183,110 +216,32 @@ class TaskSay extends TtsTask {
            label: fallbackLabel
          });
      } else {
-        this.notifyError(
-          { msg: 'TTS error', details:`TTS vendor ${vendor} error: ${error}`, failover: 'not available'});
-        throw new SpeechCredentialError(error.message);
+        throw error;
      }
-    };
-    let filepath;
-    try {
-      filepath = await this._synthesizeWithSpecificVendor(cs, ep, {vendor, language, voice, label});
-    } catch (error) {
-      await startFallback(error);
    }
    this.notifyStatus({event: 'start-playback'});

-    while (!this.killed && (this.loop === 'forever' || this.loop--) && ep?.connected) {
+    while (!this.killed && (this.loop === 'forever' || this.loop--) && this.ep?.connected) {
      let segment = 0;
      while (!this.killed && segment < filepath.length) {
        if (cs.isInConference) {
          const {memberId, confName, confUuid} = cs;
-          await this.playToConfMember(ep, memberId, confName, confUuid, filepath[segment]);
+          await this.playToConfMember(this.ep, memberId, confName, confUuid, filepath[segment]);
        }
        else {
-          const isStreaming = filepath[segment].startsWith('say:{');
-          if (isStreaming) {
-            const arr = /^say:\{.*\}\s*(.*)$/.exec(filepath[segment]);
-            if (arr) this.logger.debug(`Say:exec sending streaming tts request: ${arr[1].substring(0, 64)}..`);
-          }
-          else this.logger.debug(`Say:exec sending ${filepath[segment].substring(0, 64)}`);
-          ep.once('playback-start', (evt) => {
-            this.logger.debug({evt}, 'Say got playback-start');
-            if (this.otelSpan) {
-              this._addStreamingTtsAttributes(this.otelSpan, evt);
-              this.otelSpan.end();
-              this.otelSpan = null;
-              if (evt.variable_tts_cache_filename) {
-                cs.trackTmpFile(evt.variable_tts_cache_filename);
-              }
-            }
-          });
-          ep.once('playback-stop', (evt) => {
-            this.logger.debug({evt}, 'Say got playback-stop');
-            if (evt.variable_tts_error) {
-              writeAlerts({
-                account_sid,
-                alert_type: AlertType.TTS_FAILURE,
-                vendor,
-                detail: evt.variable_tts_error,
-                target_sid
-              }).catch((err) => this.logger.info({err}, 'Error generating alert for no tts'));
-            }
-            if (evt.variable_tts_cache_filename && !this.killed) {
-              const text = parseTextFromSayString(this.text[segment]);
-              addFileToCache(evt.variable_tts_cache_filename, {
-                account_sid,
-                vendor,
-                language,
-                voice,
-                engine,
-                text
-              }).catch((err) => this.logger.info({err}, 'Error adding file to cache'));
-            }
-
-            if (this._playResolve) {
-              evt.variable_tts_error ? this._playReject(new Error(evt.variable_tts_error)) : this._playResolve();
-            }
-          });
-          // wait for playback-stop event received to confirm if the playback is successful
-          this._playPromise = new Promise((resolve, reject) => {
-            this._playResolve = resolve;
-            this._playReject = reject;
-          });
-          const r = await ep.play(filepath[segment]);
-          this.logger.debug({r}, 'Say:exec play result');
-          try {
-            // wait for playback-stop event received to confirm if the playback is successful
-            await this._playPromise;
-          } catch (err) {
-            try {
-              await startFallback(err);
-              continue;
-            } catch (err) {
-              this.logger.info({err}, 'Error waiting for playback-stop event');
-              throw err;
-            }
-          } finally {
-            this._playPromise = null;
-            this._playResolve = null;
-            this._playReject = null;
-          }
-          if (filepath[segment].startsWith('say:{')) {
-            const arr = /^say:\{.*\}\s*(.*)$/.exec(filepath[segment]);
-            if (arr) this.logger.debug(`Say:exec complete playing streaming tts request: ${arr[1].substring(0, 64)}..`);
-          } else {
-            // This log will print spech credentials in say command for tts stream mode
-            this.logger.debug(`Say:exec completed play file ${filepath[segment]}`);
-          }
+          this.logger.debug(`Say:exec sending command to play file ${filepath[segment]}`);
+          await ep.play(filepath[segment]);
+          this.logger.debug(`Say:exec completed play file ${filepath[segment]}`);
        }
        segment++;
      }
    }
+    this.emit('playDone');
  }

  async kill(cs) {
    super.kill(cs);
-    if (this.ep?.connected) {
+    if (this.ep.connected) {
      this.logger.debug('TaskSay:kill - killing audio');
      if (cs.isInConference) {
        const {memberId, confName} = cs;
@@ -296,92 +251,8 @@ class TaskSay extends TtsTask {
        this.notifyStatus({event: 'kill-playback'});
        this.ep.api('uuid_break', this.ep.uuid);
      }
-      this.ep.removeAllListeners('playback-start');
-      this.ep.removeAllListeners('playback-stop');
-      // if we are waiting for playback-stop event, resolve the promise
-      if (this._playResolve) {
-        this._playResolve();
-        this._playResolve = null;
-      }
-    }
-    this.notifyTaskDone();
-  }
-
-  _addStreamingTtsAttributes(span, evt) {
-    const attrs = {'tts.cached': false};
-    for (const [key, value] of Object.entries(evt)) {
-      if (key.startsWith('variable_tts_')) {
-        let newKey = key.substring('variable_tts_'.length)
-          .replace('whisper_', 'whisper.')
-          .replace('deepgram_', 'deepgram.')
-          .replace('playht_', 'playht.')
-          .replace('cartesia_', 'cartesia.')
-          .replace('rimelabs_', 'rimelabs.')
-          .replace('verbio_', 'verbio.')
-          .replace('elevenlabs_', 'elevenlabs.');
-        if (spanMapping[newKey]) newKey = spanMapping[newKey];
-        attrs[newKey] = value;
-      }
-    }
-    delete attrs['cache_filename']; //no value in adding this to the span
-    span.setAttributes(attrs);
-  }
-
-  notifyTtsStreamIsEmpty() {
-    if (this.isStreamingTts && this.closeOnStreamEmpty) {
-      this.logger.info('TaskSay:notifyTtsStreamIsEmpty - stream is empty, killing task');
-      this.notifyTaskDone();
    }
  }
 }

-const spanMapping = {
-  // IMPORTANT!!! JAMBONZ WEBAPP WILL SHOW TEXT PERFECTLY IF THE SPAN NAME IS SMALLER OR EQUAL 25 CHARACTERS.
-  // EX: whisper.ratelim_reqs has length 20 <= 25 which is perfect
-  // Elevenlabs
-  'elevenlabs.reported_latency_ms': 'elevenlabs.latency_ms',
-  'elevenlabs.request_id': 'elevenlabs.req_id',
-  'elevenlabs.history_item_id': 'elevenlabs.item_id',
-  'elevenlabs.optimize_streaming_latency': 'elevenlabs.optimization',
-  'elevenlabs.name_lookup_time_ms': 'name_lookup_ms',
-  'elevenlabs.connect_time_ms': 'connect_ms',
-  'elevenlabs.final_response_time_ms': 'final_response_ms',
-  // Whisper
-  'whisper.reported_latency_ms': 'whisper.latency_ms',
-  'whisper.request_id': 'whisper.req_id',
-  'whisper.reported_organization': 'whisper.organization',
-  'whisper.reported_ratelimit_requests': 'whisper.ratelimit',
-  'whisper.reported_ratelimit_remaining_requests': 'whisper.ratelimit_remain',
-  'whisper.reported_ratelimit_reset_requests': 'whisper.ratelimit_reset',
-  'whisper.name_lookup_time_ms': 'name_lookup_ms',
-  'whisper.connect_time_ms': 'connect_ms',
-  'whisper.final_response_time_ms': 'final_response_ms',
-  // Deepgram
-  'deepgram.request_id': 'deepgram.req_id',
-  'deepgram.reported_model_name': 'deepgram.model_name',
-  'deepgram.reported_model_uuid': 'deepgram.model_uuid',
-  'deepgram.reported_char_count': 'deepgram.char_count',
-  'deepgram.name_lookup_time_ms': 'name_lookup_ms',
-  'deepgram.connect_time_ms': 'connect_ms',
-  'deepgram.final_response_time_ms': 'final_response_ms',
-  // Playht
-  'playht.request_id': 'playht.req_id',
-  'playht.name_lookup_time_ms': 'name_lookup_ms',
-  'playht.connect_time_ms': 'connect_ms',
-  'playht.final_response_time_ms': 'final_response_ms',
-  // Cartesia
-  'cartesia.request_id': 'cartesia.req_id',
-  'cartesia.name_lookup_time_ms': 'name_lookup_ms',
-  'cartesia.connect_time_ms': 'connect_ms',
-  'cartesia.final_response_time_ms': 'final_response_ms',
-  // Rimelabs
-  'rimelabs.name_lookup_time_ms': 'name_lookup_ms',
-  'rimelabs.connect_time_ms': 'connect_ms',
-  'rimelabs.final_response_time_ms': 'final_response_ms',
-  // verbio
-  'verbio.name_lookup_time_ms': 'name_lookup_ms',
-  'verbio.connect_time_ms': 'connect_ms',
-  'verbio.final_response_time_ms': 'final_response_ms',
-};
-
 module.exports = TaskSay;
--- a/lib/tasks/sip_refer.js
+++ b/lib/tasks/sip_refer.js
@@ -12,7 +12,6 @@ class TaskSipRefer extends Task {

    this.referTo = this.data.referTo;
    this.referredBy = this.data.referredBy;
-    this.referredByDisplayName = this.data.referredByDisplayName;
    this.headers = this.data.headers || {};
    this.eventHook = this.data.eventHook;
  }
@@ -95,10 +94,7 @@ class TaskSipRefer extends Task {
        }
        if (status >= 200) {
          this.referSpan.setAttributes({'refer.finalNotify': status});
-          await this.performAction({refer_status: 202, final_referred_call_status: status})
-            .catch((err) => {
-              this.logger.error(err, 'TaskSipRefer:exec - error performing action finalNotify');
-            });
+          await this.performAction({refer_status: 202, final_referred_call_status: status});
          this.notifyTaskDone();
        }
      }
@@ -106,7 +102,7 @@ class TaskSipRefer extends Task {
  }

  _normalizeReferHeaders(cs, dlg) {
-    let {referTo, referredBy, referredByDisplayName} = this;
+    let {referTo, referredBy} = this;

    /* get IP address of the SBC to use as hostname if needed */
    const {host} = parseUri(dlg.remote.uri);
@@ -121,12 +117,9 @@ class TaskSipRefer extends Task {
      referredBy = cs.req?.callingNumber || dlg.local.uri;
      this.logger.info({referredBy}, 'setting referredby');
    }
-    if (!referredByDisplayName) {
-      referredByDisplayName = cs.req?.callingName;
-    }
    if (!referredBy.startsWith('<') && !referredBy.startsWith('sip') && !referredBy.startsWith('"')) {
      /* they may have only provided a phone number/user */
-      referredBy = `${referredByDisplayName ? `"${referredByDisplayName}"` : ''}<sip:${referredBy}@${host}>`;
+      referredBy = `sip:${referredBy}@${host}`;
    }
    return {referTo, referredBy};
  }
--- a/lib/tasks/stt-task.js
+++ b/lib/tasks/stt-task.js
@@ -2,8 +2,6 @@ const Task = require('./task');
 const assert = require('assert');
 const crypto = require('crypto');
 const { TaskPreconditions, CobaltTranscriptionEvents } = require('../utils/constants');
-const { SpeechCredentialError } = require('../utils/error');
-const {JAMBONES_AWS_TRANSCRIBE_USE_GRPC} = require('../config');

 class SttTask extends Task {

@@ -16,24 +14,16 @@ class SttTask extends Task {
    const {
      setChannelVarsForStt,
      normalizeTranscription,
+      removeSpeechListeners,
      setSpeechCredentialsAtRuntime,
-      compileSonioxTranscripts,
-      consolidateTranscripts,
-      updateSpeechmaticsPayload
+      compileSonioxTranscripts
    } = require('../utils/transcription-utils')(logger);
    this.setChannelVarsForStt = setChannelVarsForStt;
    this.normalizeTranscription = normalizeTranscription;
+    this.removeSpeechListeners = removeSpeechListeners;
    this.compileSonioxTranscripts = compileSonioxTranscripts;
-    this.consolidateTranscripts = consolidateTranscripts;
-    this.updateSpeechmaticsPayload = updateSpeechmaticsPayload;
-    this.eventHandlers = [];
+
    this.isHandledByPrimaryProvider = true;
-    /**
-     * Task use taskIncludeRecognizer to identify
-     * if taskIncludeRecognizer === true, use label from verb.recognizer, even it's empty
-     * if taskIncludeRecognizer === false, use label from application.recognizer
-     */
-    this.taskIncludeRecognizer = !!this.data.recognizer;
    if (this.data.recognizer) {
      const recognizer = this.data.recognizer;
      this.vendor = recognizer.vendor;
@@ -43,7 +33,7 @@ class SttTask extends Task {
      //fallback
      this.fallbackVendor = recognizer.fallbackVendor || 'default';
      this.fallbackLanguage = recognizer.fallbackLanguage || 'default';
-      this.fallbackLabel = recognizer.fallbackLabel;
+      this.fallbackLabel = recognizer.fallbackLabel || 'default';

      /* let credentials be supplied in the recognizer object at runtime */
      this.sttCredentials = setSpeechCredentialsAtRuntime(recognizer);
@@ -57,131 +47,11 @@ class SttTask extends Task {

    /* buffer for soniox transcripts */
    this._sonioxTranscripts = [];
-    /*bug name prefix */
-    this.bugname_prefix = '';

  }

-  async exec(cs, {ep, ep2}) {
-    super.exec(cs);
-    this.ep = ep;
-    this.ep2 = ep2;
-
-    // use session preferences if we don't have specific verb-level settings.
-    if (cs.recognizer) {
-      for (const k in cs.recognizer) {
-        const newValue = this.data.recognizer && this.data.recognizer[k] !== undefined ?
-          this.data.recognizer[k] :
-          cs.recognizer[k];
-
-        if (Array.isArray(newValue)) {
-          this.data.recognizer[k] = [...(this.data.recognizer[k] || []), ...cs.recognizer[k]];
-        } else if (typeof newValue === 'object' && newValue !== null) {
-          this.data.recognizer[k] = { ...(this.data.recognizer[k] || {}), ...cs.recognizer[k] };
-        } else {
-          this.data.recognizer[k] = newValue;
-        }
-      }
-    }
-    if ('default' === this.vendor || !this.vendor) {
-      this.vendor = cs.speechRecognizerVendor;
-      if (this.data.recognizer) this.data.recognizer.vendor = this.vendor;
-    }
-    if ('default' === this.language || !this.language) {
-      this.language = cs.speechRecognizerLanguage;
-      if (this.data.recognizer) this.data.recognizer.language = this.language;
-    }
-    if (!this.taskIncludeRecognizer) {
-      this.label = cs.speechRecognizerLabel;
-      if (this.data.recognizer) this.data.recognizer.label = this.label;
-    }
-    // Fallback options
-    if ('default' === this.fallbackVendor || !this.fallbackVendor) {
-      this.fallbackVendor = cs.fallbackSpeechRecognizerVendor;
-      if (this.data.recognizer) this.data.recognizer.fallbackVendor = this.fallbackVendor;
-    }
-    if ('default' === this.fallbackLanguage || !this.fallbackLanguage) {
-      this.fallbackLanguage = cs.fallbackSpeechRecognizerLanguage;
-      if (this.data.recognizer) this.data.recognizer.fallbackLanguage = this.fallbackLanguage;
-    }
-    if (!this.taskIncludeRecognizer) {
-      this.fallbackLabel = cs.fallbackSpeechRecognizerLabel;
-      if (this.data.recognizer) this.data.recognizer.fallbackLabel = this.fallbackLabel;
-    }
-
-    if (cs.hasFallbackAsr) {
-      if (this.taskIncludeRecognizer) {
-        // reset fallback ASR from previous run if this verb contains data.recognizer.
-        cs.hasFallbackAsr = false;
-      } else {
-        this.logger.debug('Call session has fallback to 2nd ASR, use 2nd recognizer configuration');
-        this.vendor = this.fallbackVendor;
-        this.language = this.fallbackLanguage;
-        this.label = this.fallbackLabel;
-      }
-    }
-    if (!this.data.recognizer.vendor) {
-      this.data.recognizer.vendor = this.vendor;
-    }
-    if (this.vendor === 'cobalt' && !this.data.recognizer.model) {
-      // By default, application saves cobalt model in language
-      this.data.recognizer.model = cs.speechRecognizerLanguage;
-    }
-
-    if (
-      // not gather task, such as transcribe
-      (!this.input ||
-      // gather task with speech
-        this.input.includes('speech')) &&
-      !this.sttCredentials) {
-      try {
-        this.sttCredentials = await this._initSpeechCredentials(this.cs, this.vendor, this.label);
-      } catch (error) {
-        if (this.canFallback) {
-          this.notifyError(
-            {
-              msg: 'ASR error', details:`Invalid vendor ${this.vendor}, Error: ${error}`,
-              failover: 'in progress'
-            });
-          await this._initFallback();
-        } else {
-          this.notifyError(
-            {
-              msg: 'ASR error', details:`Invalid vendor ${this.vendor}, Error: ${error}`,
-              failover: 'not available'
-            });
-          throw error;
-        }
-      }
-    }
-
-    /* when using cobalt model is required */
-    if (this.vendor === 'cobalt' && !this.data.recognizer.model) {
-      this.notifyError({ msg: 'ASR error', details:'Cobalt requires a model to be specified'});
-      throw new Error('Cobalt requires a model to be specified');
-    }
-
-    if (cs.hasAltLanguages) {
-      this.data.recognizer.altLanguages = this.data.recognizer.altLanguages.concat(cs.altLanguages);
-      this.logger.debug({altLanguages: this.altLanguages},
-        'STT:exec - applying altLanguages');
-    }
-    if (cs.hasGlobalSttPunctuation && !this.data.recognizer.punctuation) {
-      this.data.recognizer.punctuation = cs.globalSttPunctuation;
-    }
-  }
-
-  addCustomEventListener(ep, event, handler) {
-    this.eventHandlers.push({ep, event, handler});
-    ep.addCustomEventListener(event, handler);
-  }
-
-  removeCustomEventListeners() {
-    this.eventHandlers.forEach((h) => h.ep.removeCustomEventListener(h.event, h.handler));
-  }
-
  async _initSpeechCredentials(cs, vendor, label) {
-    const {getNuanceAccessToken, getIbmAccessToken, getAwsAuthToken, getVerbioAccessToken} = cs.srf.locals.dbHelpers;
+    const {getNuanceAccessToken, getIbmAccessToken} = this.cs.srf.locals.dbHelpers;
    let credentials = cs.getSpeechCredentials(vendor, 'stt', label);

    if (!credentials) {
@@ -190,11 +60,15 @@ class SttTask extends Task {
      writeAlerts({
        account_sid: cs.accountSid,
        alert_type: AlertType.STT_NOT_PROVISIONED,
-        vendor,
-        target_sid: cs.callSid
+        vendor
      }).catch((err) => this.logger.info({err}, 'Error generating alert for no stt'));
-      // the ASR might have fallback configuration, should not done task here.
-      throw new SpeechCredentialError(`No speech-to-text service credentials for ${vendor} have been configured`);
+      // Notify application that STT vender is wrong.
+      this.notifyError({
+        msg: 'ASR error',
+        details: `No speech-to-text service credentials for ${vendor} have been configured`
+      });
+      this.notifyTaskDone();
+      throw new Error(`No speech-to-text service credentials for ${vendor} have been configured`);
    }

    if (vendor === 'nuance' && credentials.client_id) {
@@ -210,59 +84,21 @@ class SttTask extends Task {
      const {access_token, servedFromCache} = await getIbmAccessToken(stt_api_key);
      this.logger.debug({stt_api_key}, `got ibm access token ${servedFromCache ? 'from cache' : ''}`);
      credentials = {...credentials, access_token, stt_region};
-    } else if (['aws', 'polly'].includes(vendor) && credentials.roleArn) {
-      /* get aws access token */
-      const {roleArn, region} = credentials;
-      const {accessKeyId, secretAccessKey, sessionToken, servedFromCache} =
-        await getAwsAuthToken({
-          region,
-          roleArn
-        });
-      this.logger.debug({roleArn}, `(roleArn) got aws access token ${servedFromCache ? 'from cache' : ''}`);
-      // from role ARN, we will get SessionToken, but feature server use it as securityToken.
-      credentials = {...credentials, accessKeyId, secretAccessKey, securityToken: sessionToken};
    }
-    else if (vendor === 'verbio' && credentials.client_id && credentials.client_secret) {
-      const {access_token, servedFromCache} = await getVerbioAccessToken(credentials);
-      this.logger.debug({client_id: credentials.client_id},
-        `got verbio access token ${servedFromCache ? 'from cache' : ''}`);
-      credentials.access_token = access_token;
-    }
-    else if (vendor == 'aws' && !JAMBONES_AWS_TRANSCRIBE_USE_GRPC) {
-      /* get AWS access token */
-      const {speech_credential_sid, accessKeyId, secretAccessKey, securityToken, region } = credentials;
-      if (!securityToken) {
-        const { servedFromCache, ...newCredentials} = await getAwsAuthToken({
-          speech_credential_sid,
-          accessKeyId,
-          secretAccessKey,
-          region});
-        this.logger.debug({newCredentials}, `got aws security token ${servedFromCache ? 'from cache' : ''}`);
-        credentials = {...newCredentials, region};
-      }
-    }
-
    return credentials;
  }

-  get canFallback() {
-    return this.fallbackVendor && this.isHandledByPrimaryProvider && !this.cs.hasFallbackAsr;
-  }
-
-  async _initFallback() {
+  async _fallback() {
    assert(this.fallbackVendor, 'fallback failed without fallbackVendor configuration');
-    this.logger.info(`Failed to use primary STT provider, fallback to ${this.fallbackVendor}`);
    this.isHandledByPrimaryProvider = false;
-    this.cs.hasFallbackAsr = true;
-    this.vendor = this.cs.fallbackSpeechRecognizerVendor = this.fallbackVendor;
-    this.language = this.cs.fallbackSpeechRecognizerLanguage = this.fallbackLanguage;
-    this.label = this.cs.fallbackSpeechRecognizerLabel = this.fallbackLabel;
+    this.logger.info(`Failed to use primary STT provider, fallback to ${this.fallbackVendor}`);
+    this.vendor = this.fallbackVendor;
+    this.language = this.fallbackLanguage;
+    this.label = this.fallbackLabel;
    this.data.recognizer.vendor = this.vendor;
    this.data.recognizer.language = this.language;
    this.data.recognizer.label = this.label;
    this.sttCredentials = await this._initSpeechCredentials(this.cs, this.vendor, this.label);
-    // cleanup previous listener from previous vendor
-    this.removeCustomEventListeners();
  }

  async compileHintsForCobalt(ep, hostport, model, token, hints) {
@@ -302,58 +138,6 @@ class SttTask extends Task {
    addKey(key, evt.compiled_context, 3600 * 12)
      .catch((err) => this.logger.info({err}, `Error caching cobalt context for ${key}`));
  }
-
-  _doContinuousAsrWithDeepgram(asrTimeout) {
-    /* deepgram has an utterance_end_ms property that simplifies things */
-    assert(this.vendor === 'deepgram');
-    if (asrTimeout < 1000) {
-      this.notifyError({
-        msg: 'ASR error',
-        details:`asrTimeout ${asrTimeout} is too short for deepgram; setting it to 1000ms`
-      });
-      asrTimeout = 1000;
-    }
-    else if (asrTimeout > 5000) {
-      this.notifyError({
-        msg: 'ASR error',
-        details:`asrTimeout ${asrTimeout} is too long for deepgram; setting it to 5000ms`
-      });
-      asrTimeout = 5000;
-    }
-    this.logger.debug(`_doContinuousAsrWithDeepgram - setting utterance_end_ms to ${asrTimeout}`);
-    const dgOptions = this.data.recognizer.deepgramOptions = this.data.recognizer.deepgramOptions || {};
-    dgOptions.utteranceEndMs = dgOptions.utteranceEndMs || asrTimeout;
-  }
-
-  _onVendorConnect(_cs, _ep) {
-    this.logger.debug(`TaskGather:_on${this.vendor}Connect`);
-  }
-
-  _onVendorError(cs, _ep, evt) {
-    this.logger.info({evt}, `${this.name}:_on${this.vendor}Error`);
-    const {writeAlerts, AlertType} = cs.srf.locals;
-    writeAlerts({
-      account_sid: cs.accountSid,
-      alert_type: AlertType.STT_FAILURE,
-      message: 'STT failure reported by vendor',
-      detail: evt.error,
-      vendor: this.vendor,
-      target_sid: cs.callSid
-    }).catch((err) => this.logger.info({err}, `Error generating alert for ${this.vendor} connection failure`));
-  }
-
-  _onVendorConnectFailure(cs, _ep, evt) {
-    const {reason} = evt;
-    const {writeAlerts, AlertType} = cs.srf.locals;
-    this.logger.info({evt}, `${this.name}:_on${this.vendor}ConnectFailure`);
-    writeAlerts({
-      account_sid: cs.accountSid,
-      alert_type: AlertType.STT_FAILURE,
-      message: `Failed connecting to ${this.vendor} speech recognizer: ${reason}`,
-      vendor: this.vendor,
-      target_sid: cs.callSid
-    }).catch((err) => this.logger.info({err}, `Error generating alert for ${this.vendor} connection failure`));
-  }
 }

 module.exports = SttTask;
--- a/lib/tasks/tag.js
+++ b/lib/tasks/tag.js
@@ -12,7 +12,7 @@ class TaskTag extends Task {
  async exec(cs) {
    super.exec(cs);
    cs.callInfo.customerData = this.data;
-    this.logger.debug({customerData: cs.callInfo.customerData}, 'TaskTag:exec set customer data in callInfo');
+    //this.logger.debug({callInfo: cs.callInfo.toJSON()}, 'TaskTag:exec set customer data in callInfo');
  }
 }

--- a/lib/tasks/task.js
+++ b/lib/tasks/task.js
@@ -45,10 +45,6 @@ class Task extends Emitter {
    return this.name;
  }

-  set disableTracing(val) {
-    this._disableTracing = val;
-  }
-
  toJSON() {
    return this.data;
  }
@@ -164,33 +160,15 @@ class Task extends Emitter {
      const httpHeaders = b3 && {b3};
      span.setAttributes({'http.body': JSON.stringify(params)});
      try {
-        if (this.id) params.verb_id = this.id;
        const json = await this.cs.requestor.request(type, this.actionHook, params, httpHeaders);
        span.setAttributes({'http.statusCode': 200});
-        const isWsConnection = this.cs.requestor instanceof WsRequestor;
-        if (!isWsConnection || (expectResponse && json && Array.isArray(json) && json.length)) {
-          span.end();
-        } else {
-          /** we use this span to measure application response latency,
-           * and with websocket connections we generally get the application's response
-           * in a subsequent message from the far end, so we terminate the span when the
-           * first new set of verbs arrive after sending a transcript
-           * */
-          this.emit('VerbHookSpanWaitForEnd', {span});
-
-          // If actionHook delay action is configured, and ws application have not responded yet any verb for actionHook
-          // We have to transfer the task to call-session to await on next ws command verbs, and also run action Hook
-          // delay actions
-          //if (this.hookDelayActionOpts) {
-          //  this.emit('ActionHookDelayActionOptions', this.hookDelayActionOpts);
-          //}
-        }
+        span.end();
        if (expectResponse && json && Array.isArray(json)) {
          const makeTask = require('./make_task');
          const tasks = normalizeJambones(this.logger, json).map((tdata) => makeTask(this.logger, tdata));
          if (tasks && tasks.length > 0) {
+            this.logger.info({tasks: tasks}, `${this.name} replacing application with ${tasks.length} tasks`);
            this.callSession.replaceApplication(tasks);
-            return true;
          }
        }
      } catch (err) {
@@ -198,7 +176,6 @@ class Task extends Emitter {
        span.end();
        throw err;
      }
-      return false;
    }
  }

@@ -278,7 +255,6 @@ class Task extends Emitter {
    delete obj.requestor;
    delete obj.notifier;
    obj.tasks =  cs.getRemainingTaskData();
-    obj.callInfo = cs.callInfo.toJSON();
    if (opts && obj.tasks.length > 0) {
      const key = Object.keys(obj.tasks[0])[0];
      Object.assign(obj.tasks[0][key], {_: opts});
--- a/lib/tasks/transcribe.js
+++ b/lib/tasks/transcribe.js
@@ -11,14 +11,10 @@ const {
  IbmTranscriptionEvents,
  NvidiaTranscriptionEvents,
  JambonzTranscriptionEvents,
-  TranscribeStatus,
-  AssemblyAiTranscriptionEvents,
-  VerbioTranscriptionEvents,
-  SpeechmaticsTranscriptionEvents
-} = require('../utils/constants.json');
+  TranscribeStatus
+} = require('../utils/constants');
 const { normalizeJambones } = require('@jambonz/verb-specifications');
 const SttTask = require('./stt-task');
-const { SpeechCredentialError } = require('../utils/error');

 const STT_LISTEN_SPAN_NAME = 'stt-listen';

@@ -27,7 +23,6 @@ class TaskTranscribe extends SttTask {
    super(logger, opts, parentTask);

    this.transcriptionHook = this.data.transcriptionHook;
-    this.translationHook = this.data.translationHook;
    this.earlyMedia = this.data.earlyMedia === true || (parentTask && parentTask.earlyMedia);

    if (this.data.recognizer) {
@@ -35,72 +30,20 @@ class TaskTranscribe extends SttTask {
      this.separateRecognitionPerChannel = this.data.recognizer.separateRecognitionPerChannel;
    }

-    /* for nested transcribe in dial, unless the app explicitly says so we want to transcribe both legs */
-    if (this.parentTask?.name === TaskName.Dial) {
-      if (this.data.channel === 1 || this.data.channel === 2) {
-        /* transcribe only the channel specified */
-        this.separateRecognitionPerChannel = false;
-        this.channel = this.data.channel;
-        logger.debug(`TaskTranscribe: transcribing only channel ${this.channel} in the Dial verb`);
-      }
-      else if (this.separateRecognitionPerChannel !== false) {
-        this.separateRecognitionPerChannel = true;
-      }
-      else {
-        this.channel = 1;
-      }
-    }
-    else {
-      this.channel = 1;
-    }
-
    this.childSpan = [null, null];

-    // Continuous asr timeout
+    // Continuos asr timeout
    this.asrTimeout = typeof this.data.recognizer.asrTimeout === 'number' ? this.data.recognizer.asrTimeout * 1000 : 0;
-    if (this.asrTimeout > 0) {
-      this.isContinuousAsr = true;
-    }
+    this.isContinuousAsr = this.asrTimeout > 0;
    /* buffer speech for continuous asr */
-    this._bufferedTranscripts = [ [], [] ];  // for channel 1 and 2
-    this.bugname_prefix = 'transcribe_';
-    this.paused = false;
+    this._bufferedTranscripts = [];
  }

  get name() { return TaskName.Transcribe; }

-  get transcribing1() {
-    return this.channel === 1 || this.separateRecognitionPerChannel;
-  }
-
-  get transcribing2() {
-    return this.channel === 2 || this.separateRecognitionPerChannel && this.ep2;
-  }
-
-  async exec(cs, obj) {
-    try {
-      await this.handling(cs, obj);
-    } catch (error) {
-      if (error instanceof SpeechCredentialError) {
-        this.logger.info('Transcribe failed due to SpeechCredentialError, finished!');
-        this.notifyTaskDone();
-        return;
-      }
-      throw error;
-    }
-  }
-
-  async handling(cs, {ep, ep2}) {
-    await super.exec(cs, {ep, ep2});
-
-    if (this.data.recognizer.vendor === 'nuance') {
-      this.data.recognizer.nuanceOptions = {
-        // by default, nuance STT will recognize only 1st utterance.
-        // enable multiple allow nuance detact all utterances
-        utteranceDetectionMode: 'multiple',
-        ...this.data.recognizer.nuanceOptions
-      };
-    }
+  async exec(cs, {ep, ep2}) {
+    super.exec(cs);
+    const {updateSpeechCredentialLastUsed} = require('../utils/db-utils')(this.logger, cs.srf);

    if (cs.hasGlobalSttHints) {
      const {hints, hintsBoost} = cs.globalSttHints;
@@ -109,39 +52,95 @@ class TaskTranscribe extends SttTask {
      this.logger.debug({hints: this.data.recognizer.hints, hintsBoost: this.data.recognizer.hintsBoost},
        'Transcribe:exec - applying global sttHints');
    }
+    if (cs.hasAltLanguages) {
+      this.data.recognizer.altLanguages = this.data.recognizer.altLanguages.concat(cs.altLanguages);
+      this.logger.debug({altLanguages: this.altLanguages},
+        'Transcribe:exec - applying altLanguages');
+    }
+    if (cs.hasGlobalSttPunctuation && !this.data.recognizer.punctuation) {
+      this.data.recognizer.punctuation = cs.globalSttPunctuation;
+    }

-    try {
-      if (this.transcribing1) {
-        await this._startTranscribing(cs, ep, 1);
-      }
-      if (this.transcribing2) {
-        await this._startTranscribing(cs, ep2, 2);
-      }
-    } catch (err) {
-      if (!(await this._startFallback(cs, ep, {error: err}))) {
-        this.logger.info(err, 'TaskTranscribe:exec - error');
-        this.parentTask && this.parentTask.emit('error', err);
-        this.removeCustomEventListeners();
-        return;
+    this.ep = ep;
+    this.ep2 = ep2;
+    if ('default' === this.vendor || !this.vendor) {
+      this.vendor = cs.speechRecognizerVendor;
+      if (this.data.recognizer) this.data.recognizer.vendor = this.vendor;
+    }
+    if ('default' === this.language || !this.language) {
+      this.language = cs.speechRecognizerLanguage;
+      if (this.data.recognizer) this.data.recognizer.language = this.language;
+    }
+    if ('default' === this.label || !this.label) {
+      this.label = cs.speechRecognizerLabel;
+      if (this.data.recognizer) this.data.recognizer.label = this.label;
+    }
+    // Fallback options
+    if ('default' === this.fallbackVendor || !this.fallbackVendor) {
+      this.fallbackVendor = cs.fallbackSpeechRecognizerVendor;
+      if (this.data.recognizer) this.data.recognizer.fallbackVendor = this.fallbackVendor;
+    }
+    if ('default' === this.fallbackLanguage || !this.fallbackLanguage) {
+      this.fallbackLanguage = cs.fallbackSpeechRecognizerLanguage;
+      if (this.data.recognizer) this.data.recognizer.fallbackLanguage = this.fallbackLanguage;
+    }
+    if ('default' === this.fallbackLabel || !this.fallbackLabel) {
+      this.fallbackLabel = cs.fallbackSpeechRecognizerLabel;
+      if (this.data.recognizer) this.data.recognizer.fallbackLabel = this.fallbackLabel;
+    }
+    if (!this.data.recognizer.vendor) {
+      this.data.recognizer.vendor = this.vendor;
+    }
+    if (this.vendor === 'cobalt' && !this.data.recognizer.model) {
+      // By default, application saves cobalt model in language
+      this.data.recognizer.model = cs.speechRecognizerLanguage;
+    }
+
+    if (!this.sttCredentials) {
+      try {
+        this.sttCredentials = await this._initSpeechCredentials(cs, this.vendor, this.label);
+      } catch (error) {
+        if (this.fallbackVendor && this.isHandledByPrimaryProvider) {
+          await this._fallback();
+        } else {
+          throw error;
+        }
      }
    }
-    await this.awaitTaskDone();
-    this.removeCustomEventListeners();
+
+    /* when using cobalt model is required */
+    if (this.vendor === 'cobalt' && !this.data.recognizer.model) {
+      this.notifyError({ msg: 'ASR error', details:'Cobalt requires a model to be specified'});
+      throw new Error('Cobalt requires a model to be specified');
+    }
+
+    try {
+      await this._startTranscribing(cs, ep, 1);
+      if (this.separateRecognitionPerChannel && ep2) {
+        await this._startTranscribing(cs, ep2, 2);
+      }
+
+      updateSpeechCredentialLastUsed(this.sttCredentials.speech_credential_sid)
+        .catch(() => {/*already logged error */});
+
+      await this.awaitTaskDone();
+    } catch (err) {
+      this.logger.info(err, 'TaskTranscribe:exec - error');
+      this.parentTask && this.parentTask.emit('error', err);
+    }
+    this.removeSpeechListeners(ep);
  }

  async _stopTranscription() {
    let stopTranscription = false;
-    if (this.transcribing1 && this.ep?.connected) {
+    if (this.ep?.connected) {
      stopTranscription = true;
-      this.ep.stopTranscription({
-        vendor: this.vendor,
-        bugname: this.bugname
-      })
+      this.ep.stopTranscription({vendor: this.vendor})
        .catch((err) => this.logger.info(err, 'Error TaskTranscribe:kill'));
    }
-    if (this.transcribing2 && this.ep2?.connected) {
+    if (this.separateRecognitionPerChannel && this.ep2 && this.ep2.connected) {
      stopTranscription = true;
-      this.ep2.stopTranscription({vendor: this.vendor, bugname: this.bugname})
+      this.ep2.stopTranscription({vendor: this.vendor})
        .catch((err) => this.logger.info(err, 'Error TaskTranscribe:kill'));
    }

@@ -163,13 +162,13 @@ class TaskTranscribe extends SttTask {
      this.logger.info(`TaskTranscribe:updateTranscribe status ${status}`);
      switch (status) {
        case TranscribeStatus.Pause:
-          this.paused = true;
          await this._stopTranscription();
          break;
        case TranscribeStatus.Resume:
-          this.paused = false;
-          if (this.transcribing1) await this._startTranscribing(this.cs, this.ep, 1);
-          if (this.transcribing2) await this._startTranscribing(this.cs, this.ep2, 2);
+          await this._startTranscribing(this.cs, this.ep, 1);
+          if (this.separateRecognitionPerChannel && this.ep2) {
+            await this._startTranscribing(this.cs, this.ep2, 2);
+          }
          break;
      }
    }
@@ -178,74 +177,61 @@ class TaskTranscribe extends SttTask {
  async _setSpeechHandlers(cs, ep, channel) {
    if (this[`_speechHandlersSet_${channel}`]) return;
    this[`_speechHandlersSet_${channel}`] = true;
-
-    /* some special deepgram logic */
-    if (this.vendor === 'deepgram') {
-      if (this.isContinuousAsr) this._doContinuousAsrWithDeepgram(this.asrTimeout);
-    }
-
-    const opts = this.setChannelVarsForStt(this, this.sttCredentials, this.language, this.data.recognizer);
+    const opts = this.setChannelVarsForStt(this, this.sttCredentials, this.data.recognizer);
    switch (this.vendor) {
      case 'google':
-        this.bugname = `${this.bugname_prefix}google_transcribe`;
-        this.addCustomEventListener(ep, GoogleTranscriptionEvents.Transcription,
+        this.bugname = 'google_transcribe';
+        ep.addCustomEventListener(GoogleTranscriptionEvents.Transcription,
          this._onTranscription.bind(this, cs, ep, channel));
-        this.addCustomEventListener(ep, GoogleTranscriptionEvents.NoAudioDetected,
+        ep.addCustomEventListener(GoogleTranscriptionEvents.NoAudioDetected,
          this._onNoAudio.bind(this, cs, ep, channel));
-        this.addCustomEventListener(ep, GoogleTranscriptionEvents.MaxDurationExceeded,
+        ep.addCustomEventListener(GoogleTranscriptionEvents.MaxDurationExceeded,
          this._onMaxDurationExceeded.bind(this, cs, ep, channel));
        break;

      case 'aws':
      case 'polly':
-        this.bugname = `${this.bugname_prefix}aws_transcribe`;
-        this.addCustomEventListener(ep, AwsTranscriptionEvents.Transcription,
+        this.bugname = 'aws_transcribe';
+        ep.addCustomEventListener(AwsTranscriptionEvents.Transcription,
          this._onTranscription.bind(this, cs, ep, channel));
-        this.addCustomEventListener(ep, AwsTranscriptionEvents.NoAudioDetected,
+        ep.addCustomEventListener(AwsTranscriptionEvents.NoAudioDetected,
          this._onNoAudio.bind(this, cs, ep, channel));
-        this.addCustomEventListener(ep, AwsTranscriptionEvents.MaxDurationExceeded,
+        ep.addCustomEventListener(AwsTranscriptionEvents.MaxDurationExceeded,
          this._onMaxDurationExceeded.bind(this, cs, ep, channel));
        break;
      case 'microsoft':
-        this.bugname = `${this.bugname_prefix}azure_transcribe`;
-        this.addCustomEventListener(ep, AzureTranscriptionEvents.Transcription,
+        this.bugname = 'azure_transcribe';
+        ep.addCustomEventListener(AzureTranscriptionEvents.Transcription,
          this._onTranscription.bind(this, cs, ep, channel));
-        //this.addCustomEventListener(ep, AzureTranscriptionEvents.NoSpeechDetected,
-        //  this._onNoAudio.bind(this, cs, ep, channel));
+        ep.addCustomEventListener(AzureTranscriptionEvents.NoSpeechDetected,
+          this._onNoAudio.bind(this, cs, ep, channel));
        break;
      case 'nuance':
-        this.bugname = `${this.bugname_prefix}nuance_transcribe`;
-        this.addCustomEventListener(ep, NuanceTranscriptionEvents.Transcription,
+        this.bugname = 'nuance_transcribe';
+        ep.addCustomEventListener(NuanceTranscriptionEvents.Transcription,
          this._onTranscription.bind(this, cs, ep, channel));
+        ep.addCustomEventListener(NuanceTranscriptionEvents.StartOfSpeech,
+          this._onStartOfSpeech.bind(this, cs, ep, channel));
+        ep.addCustomEventListener(NuanceTranscriptionEvents.TranscriptionComplete,
+          this._onTranscriptionComplete.bind(this, cs, ep, channel));
        break;
      case 'deepgram':
-        this.bugname = `${this.bugname_prefix}deepgram_transcribe`;
-        this.addCustomEventListener(ep, DeepgramTranscriptionEvents.Transcription,
+        this.bugname = 'deepgram_transcribe';
+        ep.addCustomEventListener(DeepgramTranscriptionEvents.Transcription,
          this._onTranscription.bind(this, cs, ep, channel));
-        this.addCustomEventListener(ep, DeepgramTranscriptionEvents.Connect,
-          this._onVendorConnect.bind(this, cs, ep));
-        this.addCustomEventListener(ep, DeepgramTranscriptionEvents.ConnectFailure,
-          this._onVendorConnectFailure.bind(this, cs, ep, channel));
-
-        /* if app sets deepgramOptions.utteranceEndMs they essentially want continuous asr */
-        //if (opts.DEEPGRAM_SPEECH_UTTERANCE_END_MS) this.isContinuousAsr = true;
-
+        ep.addCustomEventListener(DeepgramTranscriptionEvents.Connect,
+          this._onDeepgramConnect.bind(this, cs, ep, channel));
+        ep.addCustomEventListener(DeepgramTranscriptionEvents.ConnectFailure,
+          this._onDeepGramConnectFailure.bind(this, cs, ep, channel));
        break;
      case 'soniox':
-        this.bugname = `${this.bugname_prefix}soniox_transcribe`;
-        this.addCustomEventListener(ep, SonioxTranscriptionEvents.Transcription,
+        this.bugname = 'soniox_transcribe';
+        ep.addCustomEventListener(SonioxTranscriptionEvents.Transcription,
          this._onTranscription.bind(this, cs, ep, channel));
        break;
-
-      case 'verbio':
-        this.bugname = `${this.bugname_prefix}verbio_transcribe`;
-        this.addCustomEventListener(
-          ep, VerbioTranscriptionEvents.Transcription, this._onTranscription.bind(this, cs, ep));
-        break;
-
      case 'cobalt':
-        this.bugname = `${this.bugname_prefix}cobalt_transcribe`;
-        this.addCustomEventListener(ep, CobaltTranscriptionEvents.Transcription,
+        this.bugname = 'cobalt_transcribe';
+        ep.addCustomEventListener(CobaltTranscriptionEvents.Transcription,
          this._onTranscription.bind(this, cs, ep, channel));

        /* cobalt doesnt have language, it has model, which is required */
@@ -274,58 +260,35 @@ class TaskTranscribe extends SttTask {
        break;

      case 'ibm':
-        this.bugname = `${this.bugname_prefix}ibm_transcribe`;
-        this.addCustomEventListener(ep, IbmTranscriptionEvents.Transcription,
+        this.bugname = 'ibm_transcribe';
+        ep.addCustomEventListener(IbmTranscriptionEvents.Transcription,
          this._onTranscription.bind(this, cs, ep, channel));
-        this.addCustomEventListener(ep, IbmTranscriptionEvents.Connect,
-          this._onVendorConnect.bind(this, cs, ep));
-        this.addCustomEventListener(ep, IbmTranscriptionEvents.ConnectFailure,
-          this._onVendorConnectFailure.bind(this, cs, ep, channel));
+        ep.addCustomEventListener(IbmTranscriptionEvents.Connect,
+          this._onIbmConnect.bind(this, cs, ep, channel));
+        ep.addCustomEventListener(IbmTranscriptionEvents.ConnectFailure,
+          this._onIbmConnectFailure.bind(this, cs, ep, channel));
        break;

      case 'nvidia':
-        this.bugname = `${this.bugname_prefix}nvidia_transcribe`;
-        this.addCustomEventListener(ep, NvidiaTranscriptionEvents.Transcription,
-          this._onTranscription.bind(this, cs, ep, channel));
-        break;
-
-      case 'assemblyai':
-        this.bugname = `${this.bugname_prefix}assemblyai_transcribe`;
-        this.addCustomEventListener(ep, AssemblyAiTranscriptionEvents.Transcription,
-          this._onTranscription.bind(this, cs, ep, channel));
-        this.addCustomEventListener(ep,
-          AssemblyAiTranscriptionEvents.Connect, this._onVendorConnect.bind(this, cs, ep));
-        this.addCustomEventListener(ep, AssemblyAiTranscriptionEvents.Error, this._onVendorError.bind(this, cs, ep));
-        this.addCustomEventListener(ep, AssemblyAiTranscriptionEvents.ConnectFailure,
-          this._onVendorConnectFailure.bind(this, cs, ep, channel));
-        break;
-
-      case 'speechmatics':
-        this.bugname = `${this.bugname_prefix}speechmatics_transcribe`;
-        this.addCustomEventListener(
-          ep, SpeechmaticsTranscriptionEvents.Transcription, this._onTranscription.bind(this, cs, ep, channel));
-        this.addCustomEventListener(
-          ep, SpeechmaticsTranscriptionEvents.Translation, this._onTranslation.bind(this, cs, ep, channel));
-        this.addCustomEventListener(ep, SpeechmaticsTranscriptionEvents.Info,
-          this._onSpeechmaticsInfo.bind(this, cs, ep));
-        this.addCustomEventListener(ep, SpeechmaticsTranscriptionEvents.RecognitionStarted,
-          this._onSpeechmaticsRecognitionStarted.bind(this, cs, ep));
-        this.addCustomEventListener(ep, SpeechmaticsTranscriptionEvents.Connect,
-          this._onVendorConnect.bind(this, cs, ep));
-        this.addCustomEventListener(ep, SpeechmaticsTranscriptionEvents.ConnectFailure,
-          this._onVendorConnectFailure.bind(this, cs, ep));
-        this.addCustomEventListener(ep, SpeechmaticsTranscriptionEvents.Error,
-          this._onSpeechmaticsError.bind(this, cs, ep));
+        this.bugname = 'nvidia_transcribe';
+        ep.addCustomEventListener(NvidiaTranscriptionEvents.Transcription,
+          this._onTranscription.bind(this, cs, ep));
+        ep.addCustomEventListener(NvidiaTranscriptionEvents.StartOfSpeech,
+          this._onStartOfSpeech.bind(this, cs, ep));
+        ep.addCustomEventListener(NvidiaTranscriptionEvents.TranscriptionComplete,
+          this._onTranscriptionComplete.bind(this, cs, ep));
+        ep.addCustomEventListener(NvidiaTranscriptionEvents.VadDetected,
+          this._onVadDetected.bind(this, cs, ep));
        break;

      default:
        if (this.vendor.startsWith('custom:')) {
-          this.bugname = `${this.bugname_prefix}${this.vendor}_transcribe`;
-          this.addCustomEventListener(ep, JambonzTranscriptionEvents.Transcription,
+          this.bugname = `${this.vendor}_transcribe`;
+          ep.addCustomEventListener(JambonzTranscriptionEvents.Transcription,
            this._onTranscription.bind(this, cs, ep, channel));
-          this.addCustomEventListener(ep, JambonzTranscriptionEvents.Connect, this._onVendorConnect.bind(this, cs, ep));
-          this.addCustomEventListener(ep, JambonzTranscriptionEvents.ConnectFailure,
-            this._onVendorConnectFailure.bind(this, cs, ep));
+          ep.addCustomEventListener(JambonzTranscriptionEvents.Connect, this._onJambonzConnect.bind(this, cs, ep));
+          ep.addCustomEventListener(JambonzTranscriptionEvents.ConnectFailure,
+            this._onJambonzConnectFailure.bind(this, cs, ep));
          break;
        }
        else {
@@ -336,7 +299,7 @@ class TaskTranscribe extends SttTask {
    }

    /* common handler for all stt engine errors */
-    this.addCustomEventListener(ep, JambonzTranscriptionEvents.Error, this._onJambonzError.bind(this, cs, ep));
+    ep.addCustomEventListener(JambonzTranscriptionEvents.Error, this._onJambonzError.bind(this, cs, ep));
    await ep.set(opts)
      .catch((err) => this.logger.info(err, 'Error setting channel variables'));
  }
@@ -351,13 +314,11 @@ class TaskTranscribe extends SttTask {
  }

  async _transcribe(ep) {
-    this.logger.debug(
-      `TaskTranscribe:_transcribe - starting transcription vendor ${this.vendor} bugname ${this.bugname}`);
    await ep.startTranscription({
      vendor: this.vendor,
      interim: this.interim ? true : false,
      locale: this.language,
-      channels: 1,
+      channels: /*this.separateRecognitionPerChannel ? 2 : */ 1,
      bugname: this.bugname,
      hostport: this.hostport
    });
@@ -366,203 +327,80 @@ class TaskTranscribe extends SttTask {
  async _onTranscription(cs, ep, channel, evt, fsEvent) {
    // make sure this is not a transcript from answering machine detection
    const bugname = fsEvent.getHeader('media-bugname');
-    const finished = fsEvent.getHeader('transcription-session-finished');
-    const bufferedTranscripts = this._bufferedTranscripts[channel - 1];
    if (bugname && this.bugname !== bugname) return;
-    if (this.paused) {
-      this.logger.debug({evt}, 'TaskTranscribe:_onTranscription - paused, ignoring transcript');
-    }

-    if (this.vendor === 'ibm' && evt?.state === 'listening') return;
-
-    if (this.vendor === 'deepgram' && evt.type === 'UtteranceEnd') {
-      /* we will only get this when we have set utterance_end_ms */
-
-      /* DH: send a speech event when we get UtteranceEnd if they want interim events */
-      if (this.interim) {
-        this.logger.debug('Gather:_onTranscription - got UtteranceEnd event from deepgram, sending speech event');
-        this._resolve(channel, evt);
-      }
-      if (bufferedTranscripts.length === 0) {
-        this.logger.debug('Gather:_onTranscription - got UtteranceEnd event from deepgram but no buffered transcripts');
-      }
-      else {
-        this.logger.debug('Gather:_onTranscription - got UtteranceEnd event from deepgram, return buffered transcript');
-        evt = this.consolidateTranscripts(bufferedTranscripts, channel, this.language, this.vendor);
-        evt.is_final = true;
-        this._bufferedTranscripts[channel - 1] = [];
-        this._resolve(channel, evt);
-      }
-      return;
+    if (this.vendor === 'ibm') {
+      if (evt?.state === 'listening') return;
    }
    this.logger.debug({evt}, 'TaskTranscribe:_onTranscription - before normalization');

-    evt = this.normalizeTranscription(evt, this.vendor, channel, this.language, undefined,
-      this.data.recognizer.punctuation);
+    evt = this.normalizeTranscription(evt, this.vendor, channel, this.language);
    this.logger.debug({evt}, 'TaskTranscribe:_onTranscription');
    if (evt.alternatives.length === 0) {
      this.logger.info({evt}, 'TaskTranscribe:_onTranscription - got empty transcript, continue listening');
      return;
    }

-    let emptyTranscript = false;
-    if (evt.is_final) {
-      if (evt.alternatives.length === 0 || evt.alternatives[0].transcript === '' && !cs.callGone && !this.killed) {
-        emptyTranscript = true;
-        if (finished === 'true' &&
-          ['microsoft', 'deepgram'].includes(this.vendor) &&
-          bufferedTranscripts.length === 0) {
-          this.logger.debug({evt}, 'TaskGather:_onTranscription - got empty transcript from old gather, disregarding');
-          return;
-        }
-        else if (this.vendor !== 'deepgram') {
-          this.logger.info({evt}, 'TaskGather:_onTranscription - got empty transcript, continue listening');
-          return;
-        }
-        else if (this.isContinuousAsr) {
-          this.logger.info({evt},
-            'TaskGather:_onTranscription - got empty deepgram transcript during continous asr, continue listening');
-          return;
-        }
-        else if (this.vendor === 'deepgram' && bufferedTranscripts.length > 0) {
-          this.logger.info({evt},
-            'TaskGather:_onTranscription - got empty transcript from deepgram, return the buffered transcripts');
-        }
-      }
-      if (this.isContinuousAsr) {
-        /* append the transcript and start listening again for asrTimeout */
-        const t = evt.alternatives[0].transcript;
-        if (t) {
-          /* remove trailing punctuation */
-          if (/[,;:\.!\?]$/.test(t)) {
-            this.logger.debug('TaskGather:_onTranscription - removing trailing punctuation');
-            evt.alternatives[0].transcript = t.slice(0, -1);
-          }
-        }
-        this.logger.info({evt}, 'TaskGather:_onTranscription - got transcript during continous asr');
-        bufferedTranscripts.push(evt);
-        this._startAsrTimer(channel);
-
-        /* some STT engines will keep listening after a final response, so no need to restart */
-        if (!['soniox', 'aws', 'microsoft', 'deepgram', 'google', 'speechmatics']
-          .includes(this.vendor)) this._startTranscribing(cs, ep, channel);
+    if (evt.alternatives[0]?.transcript === '' && !cs.callGone && !this.killed) {
+      if (['microsoft', 'deepgram'].includes(this.vendor)) {
+        this.logger.info({evt}, 'TaskTranscribe:_onTranscription - got empty transcript, continue listening');
      }
      else {
-        if (this.vendor === 'soniox') {
-          /* compile transcripts into one */
-          this._sonioxTranscripts.push(evt.vendor.finalWords);
-          evt = this.compileSonioxTranscripts(this._sonioxTranscripts, 1, this.language);
-          this._sonioxTranscripts = [];
-        }
-        else if (this.vendor === 'deepgram') {
-          /* compile transcripts into one */
-          if (!emptyTranscript) bufferedTranscripts.push(evt);
+        this.logger.info({evt}, 'TaskTranscribe:_onTranscription - got empty transcript, listen again');
+        this._transcribe(ep);
+      }
+      return;
+    }

-          /* deepgram can send an empty and final transcript; only if we have any buffered should we resolve */
-          if (bufferedTranscripts.length === 0) return;
-          evt = this.consolidateTranscripts(bufferedTranscripts, channel, this.language);
-          this._bufferedTranscripts[channel - 1] = [];
-        }
-
-        /* here is where we return a final transcript */
-        this.logger.debug({evt}, 'TaskTranscribe:_onTranscription - sending final transcript');
-        this._resolve(channel, evt);
-
-        /* some STT engines will keep listening after a final response, so no need to restart */
-        if (!['soniox', 'aws', 'microsoft', 'deepgram', 'google', 'speechmatics'].includes(this.vendor) &&
-          !this.vendor.startsWith('custom:')) {
-          this.logger.debug('TaskTranscribe:_onTranscription - restarting transcribe');
-          this._startTranscribing(cs, ep, channel);
-        }
+    if (this.vendor === 'soniox') {
+      /* compile transcripts into one */
+      this._sonioxTranscripts.push(evt.vendor.finalWords);
+      if (evt.is_final) {
+        evt = this.compileSonioxTranscripts(this._sonioxTranscripts, 1, this.language);
+        this._sonioxTranscripts = [];
      }
    }
-    else {
-      /* interim transcript */

-      /* deepgram can send a non-final transcript but with words that are final, so we need to buffer */
-      if (this.vendor === 'deepgram') {
-        const originalEvent = evt.vendor.evt;
-        if (originalEvent.is_final && evt.alternatives[0].transcript !== '') {
-          this.logger.debug({evt}, 'Gather:_onTranscription - buffering a completed (partial) deepgram transcript');
-          bufferedTranscripts.push(evt);
-        }
-      }
-
-      if (this.interim) {
-        this.logger.debug({evt}, 'TaskTranscribe:_onTranscription - sending interim transcript');
-        this._resolve(channel, evt);
-      }
+    if (this.isContinuousAsr && evt.is_final) {
+      this._bufferedTranscripts.push(evt);
+      this._startAsrTimer(channel);
+    } else {
+      await this._resolve(channel, evt);
    }
  }

-  async _onTranslation(_cs, _ep, channel, evt, _fsEvent) {
-    this.logger.debug({evt}, 'TaskTranscribe:_onTranslation');
-    if (this.translationHook && evt.results?.length > 0) {
-      try {
-        const b3 = this.getTracingPropagation();
-        const httpHeaders = b3 && {b3};
-        const payload = {
-          ...this.cs.callInfo,
-          ...httpHeaders,
-          translation: {
-            channel,
-            language: evt.language,
-            translation: evt.results[0].content
-          }
-        };
-
-        this.logger.debug({payload}, 'sending translationHook');
-        const json = await this.cs.requestor.request('verb:hook', this.translationHook, payload);
-        this.logger.info({json}, 'completed translationHook');
-        if (json && Array.isArray(json) && !this.parentTask) {
-          const makeTask = require('./make_task');
-          const tasks = normalizeJambones(this.logger, json).map((tdata) => makeTask(this.logger, tdata));
-          if (tasks && tasks.length > 0) {
-            this.logger.info({tasks: tasks}, `${this.name} replacing application with ${tasks.length} tasks`);
-            this.cs.replaceApplication(tasks);
-          }
-        }
-      } catch (err) {
-        this.logger.info(err, 'TranscribeTask:_onTranslation error');
-      }
-      if (this.parentTask) {
-        this.parentTask.emit('translation', evt);
-      }
-    }
-    if (this.killed) {
-      this.logger.debug('TaskTranscribe:_onTranslation exiting after receiving final transcription');
-      this._clearTimer();
-      this.notifyTaskDone();
+  _compileTranscripts() {
+    assert(this._bufferedTranscripts.length);
+    const evt = this._bufferedTranscripts[0];
+    let t = '';
+    for (const a of this._bufferedTranscripts) {
+      t += ` ${a.alternatives[0].transcript}`;
    }
+    evt.alternatives[0].transcript = t.trim();
+    return evt;
  }

  async _resolve(channel, evt) {
-    if (evt.is_final) {
-      /* we've got a final transcript, so end the otel child span for this channel */
-      if (this.childSpan[channel - 1] && this.childSpan[channel - 1].span) {
-        this.childSpan[channel - 1].span.setAttributes({
-          channel,
-          'stt.label': this.label || 'None',
-          'stt.resolve': 'transcript',
-          'stt.result': JSON.stringify(evt)
-        });
-        this.childSpan[channel - 1].span.end();
-      }
+    /* we've got a transcript, so end the otel child span for this channel */
+    if (this.childSpan[channel - 1] && this.childSpan[channel - 1].span) {
+      this.childSpan[channel - 1].span.setAttributes({
+        channel,
+        'stt.resolve': 'transcript',
+        'stt.result': JSON.stringify(evt)
+      });
+      this.childSpan[channel - 1].span.end();
    }

    if (this.transcriptionHook) {
      const b3 = this.getTracingPropagation();
      const httpHeaders = b3 && {b3};
-      const payload = {
-        ...this.cs.callInfo,
-        ...httpHeaders,
-        ...(evt.alternatives && {speech: evt}),
-        ...(evt.type && {speechEvent: evt})
-      };
      try {
-        this.logger.debug({payload}, 'sending transcriptionHook');
-        const json = await this.cs.requestor.request('verb:hook', this.transcriptionHook, payload);
-        this.logger.info({json}, 'completed transcriptionHook');
+        const json = await this.cs.requestor.request('verb:hook', this.transcriptionHook, {
+          ...this.cs.callInfo,
+          ...httpHeaders,
+          speech: evt
+        });
+        this.logger.info({json}, 'sent transcriptionHook');
        if (json && Array.isArray(json) && !this.parentTask) {
          const makeTask = require('./make_task');
          const tasks = normalizeJambones(this.logger, json).map((tdata) => makeTask(this.logger, tdata));
@@ -583,7 +421,7 @@ class TaskTranscribe extends SttTask {
      this._clearTimer();
      this.notifyTaskDone();
    }
-    else if (evt.is_final) {
+    else {
      /* start another child span for this channel */
      const {span, ctx} = this.startChildSpan(`${STT_LISTEN_SPAN_NAME}:${channel}`);
      this.childSpan[channel - 1] = {span, ctx};
@@ -591,13 +429,11 @@ class TaskTranscribe extends SttTask {
  }

  _onNoAudio(cs, ep, channel) {
-    this.logger.debug(`TaskTranscribe:_onNoAudio on channel ${channel}`);
-    if (this.paused) return;
+    this.logger.debug(`TaskTranscribe:_onNoAudio restarting transcription on channel ${channel}`);
    if (this.childSpan[channel - 1] && this.childSpan[channel - 1].span) {
      this.childSpan[channel - 1].span.setAttributes({
        channel,
-        'stt.resolve': 'timeout',
-        'stt.label': this.label || 'None',
+        'stt.resolve': 'timeout'
      });
      this.childSpan[channel - 1].span.end();
    }
@@ -609,13 +445,11 @@ class TaskTranscribe extends SttTask {
  }

  _onMaxDurationExceeded(cs, ep, channel) {
-    this.logger.debug(`TaskTranscribe:_onMaxDurationExceeded on channel ${channel}`);
-    if (this.paused) return;
+    this.logger.debug(`TaskTranscribe:_onMaxDurationExceeded restarting transcription on channel ${channel}`);
    if (this.childSpan[channel - 1] && this.childSpan[channel - 1].span) {
      this.childSpan[channel - 1].span.setAttributes({
        channel,
-        'stt.resolve': 'max duration exceeded',
-        'stt.label': this.label || 'None',
+        'stt.resolve': 'max duration exceeded'
      });
      this.childSpan[channel - 1].span.end();
    }
@@ -633,103 +467,122 @@ class TaskTranscribe extends SttTask {
      this._timer = null;
    }
  }
+  _onDeepgramConnect(_cs, _ep) {
+    this.logger.debug('TaskTranscribe:_onDeepgramConnect');
+  }

-  async _startFallback(cs, _ep, evt) {
-    if (this.canFallback) {
-      _ep.stopTranscription({
-        vendor: this.vendor,
-        bugname: this.bugname
-      })
+  _onDeepGramConnectFailure(cs, _ep, channel, evt) {
+    const {reason} = evt;
+    const {writeAlerts, AlertType} = cs.srf.locals;
+    this.logger.info({evt}, 'TaskTranscribe:_onDeepgramConnectFailure');
+    writeAlerts({
+      account_sid: cs.accountSid,
+      alert_type: AlertType.STT_FAILURE,
+      message: `Failed connecting to Deepgram speech recognizer: ${reason}`,
+      vendor: 'deepgram',
+    }).catch((err) => this.logger.info({err}, 'Error generating alert for deepgram connection failure'));
+    this.notifyError(`Failed connecting to speech vendor deepgram: ${reason}`);
+
+    if (this.childSpan[channel - 1] && this.childSpan[channel - 1].span) {
+      this.childSpan[channel - 1].span.setAttributes({
+        channel,
+        'stt.resolve': 'connection failure'
+      });
+      this.childSpan[channel - 1].span.end();
+    }
+    this.notifyTaskDone();
+  }
+
+  _onJambonzConnect(_cs, _ep) {
+    this.logger.debug('TaskTranscribe:_onJambonzConnect');
+  }
+
+  _onJambonzConnectFailure(cs, _ep, evt) {
+    const {reason} = evt;
+    const {writeAlerts, AlertType} = cs.srf.locals;
+    this.logger.info({evt}, 'TaskTranscribe:_onJambonzConnectFailure');
+    writeAlerts({
+      account_sid: cs.accountSid,
+      alert_type: AlertType.STT_FAILURE,
+      message: `Failed connecting to ${this.vendor} speech recognizer: ${reason}`,
+      vendor: this.vendor,
+    }).catch((err) => this.logger.info({err}, 'Error generating alert for jambonz custom connection failure'));
+    this.notifyError({msg: 'ASR error', details:`Failed connecting to speech vendor ${this.vendor}: ${reason}`});
+    this.notifyTaskDone();
+  }
+
+  _onIbmConnect(_cs, _ep) {
+    this.logger.debug('TaskTranscribe:_onIbmConnect');
+  }
+
+  _onIbmConnectFailure(cs, _ep, channel, evt) {
+    const {reason} = evt;
+    const {writeAlerts, AlertType} = cs.srf.locals;
+    this.logger.info({evt}, 'TaskTranscribe:_onIbmConnectFailure');
+    writeAlerts({
+      account_sid: cs.accountSid,
+      alert_type: AlertType.STT_FAILURE,
+      message: `Failed connecting to IBM watson speech recognizer: ${reason}`,
+      vendor: 'ibm',
+    }).catch((err) => this.logger.info({err}, 'Error generating alert for IBM connection failure'));
+    this.notifyError(`Failed connecting to speech vendor IBM: ${reason}`);
+
+    if (this.childSpan[channel - 1] && this.childSpan[channel - 1].span) {
+      this.childSpan[channel - 1].span.setAttributes({
+        channel,
+        'stt.resolve': 'connection failure'
+      });
+      this.childSpan[channel - 1].span.end();
+    }
+    this.notifyTaskDone();
+  }
+  _onIbmError(cs, _ep, _channel, evt) {
+    this.logger.info({evt}, 'TaskTranscribe:_onIbmError');
+  }
+  async _onJambonzError(cs, _ep, evt) {
+    this.logger.info({evt}, 'TaskTranscribe:_onJambonzError');
+    if (this.isHandledByPrimaryProvider && this.fallbackVendor) {
+      _ep.stopTranscription({vendor: this.vendor})
        .catch((err) => this.logger.error({err}, `Error stopping transcription for primary vendor ${this.vendor}`));
+      const {updateSpeechCredentialLastUsed} = require('../utils/db-utils')(this.logger, cs.srf);
      try {
-        this.notifyError({ msg: 'ASR error',
-          details:`STT Vendor ${this.vendor} error: ${evt.error || evt.reason}`, failover: 'in progress'});
-        await this._initFallback();
+        await this._fallback();
        let channel = 1;
        if (this.ep !== _ep) {
          channel = 2;
        }
-        this[`_speechHandlersSet_${channel}`] = false;
        this._startTranscribing(cs, _ep, channel);
-        return true;
+        updateSpeechCredentialLastUsed(this.sttCredentials.speech_credential_sid);
+        return;
      } catch (error) {
-        this.notifyError({ msg: 'ASR error',
-          details:`STT Vendor ${this.vendor} error: ${evt.error || evt.reason}`, failover: 'not available'});
        this.logger.info({error}, `There is error while falling back to ${this.fallbackVendor}`);
      }
    } else {
-      this.logger.debug('transcribe:_startFallback no condition for falling back');
-      this.notifyError({ msg: 'ASR error',
-        details:`STT Vendor ${this.vendor} error: ${evt.error || evt.reason}`, failover: 'not available'});
-    }
-    return false;
-  }
+      const {writeAlerts, AlertType} = cs.srf.locals;

-  async _onJambonzError(cs, _ep, evt) {
-    if (this.vendor === 'google' && evt.error_code === 0) {
-      this.logger.info({evt}, 'TaskTranscribe:_onJambonzError - ignoring google error code 0');
-      return;
+      if (this.vendor === 'nuance') {
+        const {code, error} = evt;
+        if (code === 404 && error === 'No speech') return this._resolve('timeout');
+        if (code === 413 && error === 'Too much speech') return this._resolve('timeout');
+      }
+      this.logger.info({evt}, 'TaskTranscribe:_onJambonzError');
+      writeAlerts({
+        account_sid: cs.accountSid,
+        alert_type: AlertType.STT_FAILURE,
+        message: `Custom speech vendor ${this.vendor} error: ${evt.error}`,
+        vendor: this.vendor,
+      }).catch((err) => this.logger.info({err}, 'Error generating alert for jambonz custom connection failure'));
+      this.notifyError({msg: 'ASR error', details:`Custom speech vendor ${this.vendor} error: ${evt.error}`});
    }
-    this.logger.info({evt}, 'TaskTranscribe:_onJambonzError');
-    if (this.paused) return;
-    const {writeAlerts, AlertType} = cs.srf.locals;
-
-    if (this.vendor === 'nuance') {
-      const {code, error} = evt;
-      if (code === 404 && error === 'No speech') return this._resolve('timeout');
-      if (code === 413 && error === 'Too much speech') return this._resolve('timeout');
-    }
-    this.logger.info({evt}, 'TaskTranscribe:_onJambonzError');
-    writeAlerts({
-      account_sid: cs.accountSid,
-      alert_type: AlertType.STT_FAILURE,
-      message: `Custom speech vendor ${this.vendor} error: ${evt.error}`,
-      vendor: this.vendor,
-      target_sid: cs.callSid
-    }).catch((err) => this.logger.info({err}, 'Error generating alert for jambonz custom connection failure'));
-    if (!(await this._startFallback(cs, _ep, evt))) {
-      this.notifyTaskDone();
-    }
-  }
-
-  async _onVendorConnectFailure(cs, _ep, channel, evt) {
-    super._onVendorConnectFailure(cs, _ep, evt);
-    if (this.childSpan[channel - 1] && this.childSpan[channel - 1].span) {
-      this.childSpan[channel - 1].span.setAttributes({
-        channel,
-        'stt.resolve': 'connection failure',
-        'stt.label': this.label || 'None',
-      });
-      this.childSpan[channel - 1].span.end();
-    }
-    if (!(await this._startFallback(cs, _ep, evt))) {
-      this.notifyTaskDone();
-    }
-  }
-
-  async _onSpeechmaticsRecognitionStarted(_cs, _ep, evt) {
-    this.logger.debug({evt}, 'TaskGather:_onSpeechmaticsRecognitionStarted');
-  }
-
-  async _onSpeechmaticsInfo(_cs, _ep, evt) {
-    this.logger.debug({evt}, 'TaskGather:_onSpeechmaticsInfo');
-  }
-
-  async _onSpeechmaticsError(cs, _ep, evt) {
-    // eslint-disable-next-line no-unused-vars
-    const {message, ...e} = evt;
-    this._onVendorError(cs, _ep, {error: JSON.stringify(e)});
  }

  _startAsrTimer(channel) {
-    if (this.vendor === 'deepgram') return; // no need
    assert(this.isContinuousAsr);
    this._clearAsrTimer(channel);
    this._asrTimer = setTimeout(() => {
      this.logger.debug(`TaskTranscribe:_startAsrTimer - asr timer went off for channel: ${channel}`);
-      const evt = this.consolidateTranscripts(
-        this._bufferedTranscripts[channel - 1], channel, this.language, this.vendor);
-      this._bufferedTranscripts[channel - 1] = [];
+      const evt = this._compileTranscripts();
+      this._bufferedTranscripts = [];
      this._resolve(channel, evt);
    }, this.asrTimeout);
    this.logger.debug(`TaskTranscribe:_startAsrTimer: set for ${this.asrTimeout}ms for channel ${channel}`);
--- a/lib/tasks/tts-task.js
+++ b/lib/tasks/tts-task.js
@@ -1,289 +0,0 @@
-const Task = require('./task');
-const { TaskPreconditions } = require('../utils/constants');
-const { SpeechCredentialError } = require('../utils/error');
-const dbUtils = require('../utils/db-utils');
-
-class TtsTask extends Task {
-
-  constructor(logger, data, parentTask) {
-    super(logger, data);
-    this.parentTask = parentTask;
-
-    this.preconditions = TaskPreconditions.Endpoint;
-
-    this.earlyMedia = this.data.earlyMedia === true || (parentTask && parentTask.earlyMedia);
-    /**
-     * Task use taskIncludeSynthesizer to identify
-     * if taskIncludeSynthesizer === true, use label from verb.synthesizer, even it's empty
-     * if taskIncludeSynthesizer === false, use label from application.synthesizer
-     */
-    this.taskIncludeSynthesizer = !!this.data.synthesizer;
-    this.synthesizer = this.data.synthesizer || {};
-    this.disableTtsCache = this.data.disableTtsCache;
-    this.options = this.synthesizer.options || {};
-  }
-
-  async exec(cs) {
-    super.exec(cs);
-    if (cs.synthesizer) {
-      this.options = {...cs.synthesizer.options, ...this.options};
-      this.data.synthesizer = this.data.synthesizer || {};
-      for (const k in cs.synthesizer) {
-        const newValue = this.data.synthesizer && this.data.synthesizer[k] !== undefined ?
-          this.data.synthesizer[k] :
-          cs.synthesizer[k];
-
-        if (Array.isArray(newValue)) {
-          this.data.synthesizer[k] = [...(this.data.synthesizer[k] || []), ...cs.synthesizer[k]];
-        } else if (typeof newValue === 'object' && newValue !== null) {
-          this.data.synthesizer[k] = { ...(this.data.synthesizer[k] || {}), ...cs.synthesizer[k] };
-        } else {
-          this.data.synthesizer[k] = newValue;
-        }
-      }
-    }
-  }
-
-  getTtsVendorData(cs) {
-    const vendor = this.synthesizer.vendor && this.synthesizer.vendor !== 'default' ?
-      this.synthesizer.vendor :
-      cs.speechSynthesisVendor;
-    const language = this.synthesizer.language && this.synthesizer.language !== 'default' ?
-      this.synthesizer.language :
-      cs.speechSynthesisLanguage ;
-    const voice =  this.synthesizer.voice && this.synthesizer.voice !== 'default' ?
-      this.synthesizer.voice :
-      cs.speechSynthesisVoice;
-    const label = this.taskIncludeSynthesizer ? this.synthesizer.label : cs.speechSynthesisLabel;
-    return {vendor, language, voice, label};
-  }
-
-  async setTtsStreamingChannelVars(vendor, language, voice, credentials, ep) {
-    const {api_key, model_id} = credentials;
-    const {stability, similarity_boost, use_speaker_boost, style} = this.options;
-    let obj;
-
-    this.logger.debug({credentials},
-      `setTtsStreamingChannelVars: vendor: ${vendor}, language: ${language}, voice: ${voice}`);
-
-    switch (vendor) {
-      case 'deepgram':
-        obj = {
-          DEEPGRAM_API_KEY: api_key,
-          DEEPGRAM_TTS_STREAMING_MODEL: voice
-        };
-        break;
-      case 'cartesia':
-        obj = {
-          CARTESIA_API_KEY: api_key,
-          CARTESIA_TTS_STREAMING_MODEL_ID: model_id,
-          CARTESIA_TTS_STREAMING_VOICE_ID: voice,
-          CARTESIA_TTS_STREAMING_LANGUAGE: language || 'en',
-        };
-        break;
-      case 'elevenlabs':
-        obj = {
-          ELEVENLABS_API_KEY: api_key,
-          ELEVENLABS_TTS_STREAMING_MODEL_ID: model_id,
-          ELEVENLABS_TTS_STREAMING_VOICE_ID: voice,
-          // 20/12/2024 - only eleven_turbo_v2_5 support multiple language
-          ...(['eleven_turbo_v2_5'].includes(model_id) && {ELEVENLABS_TTS_STREAMING_LANGUAGE: language}),
-          ...(stability && {ELEVENLABS_TTS_STREAMING_VOICE_SETTINGS_STABILITY: stability}),
-          ...(similarity_boost && {ELEVENLABS_TTS_STREAMING_VOICE_SETTINGS_SIMILARITY_BOOST: similarity_boost}),
-          ...(use_speaker_boost && {ELEVENLABS_TTS_STREAMING_VOICE_SETTINGS_USE_SPEAKER_BOOST: use_speaker_boost}),
-          ...(style && {ELEVENLABS_TTS_STREAMING_VOICE_SETTINGS_STYLE: style})
-        };
-        break;
-      default:
-        throw new Error(`vendor ${vendor} is not supported for tts streaming yet`);
-    }
-    this.logger.info({vendor, credentials, obj}, 'setTtsStreamingChannelVars');
-
-    await ep.set(obj);
-  }
-
-  async _synthesizeWithSpecificVendor(cs, ep, {vendor, language, voice, label, preCache = false}) {
-    const {srf, accountSid:account_sid} = cs;
-    const {writeAlerts, AlertType, stats} = srf.locals;
-    const {synthAudio} = srf.locals.dbHelpers;
-    const engine = this.synthesizer.engine || cs.synthesizer?.engine || 'neural';
-    const salt = cs.callSid;
-
-    let credentials = cs.getSpeechCredentials(vendor, 'tts', label);
-    if (!credentials) {
-      throw new SpeechCredentialError(
-        `No text-to-speech service credentials for ${vendor} with labels: ${label} have been configured`);
-    }
-    /* parse Nuance voices into name and model */
-    let model;
-    if (vendor === 'nuance' && voice) {
-      const arr = /([A-Za-z-]*)\s+-\s+(enhanced|standard)/.exec(voice);
-      if (arr) {
-        voice = arr[1];
-        model = arr[2];
-      }
-    } else if (vendor === 'deepgram') {
-      model = voice;
-    }
-
-    /* allow for microsoft custom region voice and api_key to be specified as an override */
-    if (vendor === 'microsoft' && this.options.deploymentId) {
-      credentials = credentials || {};
-      credentials.use_custom_tts = true;
-      credentials.custom_tts_endpoint = this.options.deploymentId;
-      credentials.api_key = this.options.apiKey || credentials.apiKey;
-      credentials.region = this.options.region || credentials.region;
-      voice = this.options.voice || voice;
-    } else if (vendor === 'elevenlabs') {
-      credentials = credentials || {};
-      credentials.model_id = this.options.model_id || credentials.model_id;
-      credentials.voice_settings = this.options.voice_settings || {};
-      credentials.optimize_streaming_latency = this.options.optimize_streaming_latency
-      || credentials.optimize_streaming_latency;
-      voice = this.options.voice_id || voice;
-    } else if (vendor === 'rimelabs') {
-      credentials = credentials || {};
-      credentials.model_id = this.options.model_id || credentials.model_id;
-    } else if (vendor === 'whisper') {
-      credentials = credentials || {};
-      credentials.model_id = this.options.model_id || credentials.model_id;
-    } else if (vendor === 'verbio') {
-      credentials = credentials || {};
-      credentials.engine_version = this.options.engine_version || credentials.engine_version;
-    } else if (vendor === 'playht') {
-      credentials = credentials || {};
-      credentials.voice_engine = this.options.voice_engine || credentials.voice_engine;
-    } else if (vendor === 'google' && typeof voice === 'string' && voice.startsWith('custom_')) {
-      const {lookupGoogleCustomVoice} = dbUtils(this.logger, cs.srf);
-      const arr = /custom_(.*)/.exec(voice);
-      if (arr) {
-        const google_custom_voice_sid = arr[1];
-        const [custom_voice] = await lookupGoogleCustomVoice(google_custom_voice_sid);
-        if (custom_voice.use_voice_cloning_key) {
-          voice = {
-            voice_cloning_key: custom_voice.voice_cloning_key,
-          };
-        }
-      }
-    }
-
-    /**
-     * note on cache_speech_handles.  This was found to be risky.
-     * It can cause a crash in the following sequence on a single call:
-     * 1. Stream tts on vendor A with cache_speech_handles=1, then
-     * 2. Stream tts on vendor B with cache_speech_handles=1
-     *
-     * we previously tried to track when vendors were switched and manage the flag accordingly,
-     * but it difficult to track all the scenarios and the benefit (slightly faster start to tts playout)
-     * is probably minimal.  DH.
-     */
-    ep.set({
-      tts_engine: vendor.startsWith('custom:') ? 'custom' : vendor,
-      tts_voice: voice,
-      //cache_speech_handles: !cs.currentTtsVendor || cs.currentTtsVendor === vendor ? 1 : 0,
-      cache_speech_handles: 0,
-    }).catch((err) => this.logger.info({err}, 'Error setting tts_engine on endpoint'));
-    // set the current vendor on the call session
-    // If vendor is changed from the previous one, then reset the cache_speech_handles flag
-    //cs.currentTtsVendor = vendor;
-
-    if (!preCache && !this._disableTracing) this.logger.info({vendor, language, voice, model}, 'TaskSay:exec');
-    try {
-      if (!credentials) {
-        writeAlerts({
-          account_sid,
-          alert_type: AlertType.TTS_NOT_PROVISIONED,
-          vendor,
-          target_sid: cs.callSid
-        }).catch((err) => this.logger.info({err}, 'Error generating alert for no tts'));
-        throw new SpeechCredentialError('no provisioned speech credentials for TTS');
-      }
-
-      /* produce an audio segment from the provided text */
-      const generateAudio = async(text) => {
-        if (this.killed) return;
-        if (text.startsWith('silence_stream://')) return text;
-
-        /* otel: trace time for tts */
-        if (!preCache && !this._disableTracing)  {
-          const {span} = this.startChildSpan('tts-generation', {
-            'tts.vendor': vendor,
-            'tts.language': language,
-            'tts.voice': voice,
-            'tts.label': label || 'None',
-          });
-          this.otelSpan = span;
-        }
-        try {
-          const {filePath, servedFromCache, rtt} = await synthAudio(stats, {
-            account_sid,
-            text,
-            vendor,
-            language,
-            voice,
-            engine,
-            model,
-            salt,
-            credentials,
-            options: this.options,
-            disableTtsCache : this.disableTtsCache,
-            renderForCaching: preCache
-          });
-          if (!filePath.startsWith('say:')) {
-            this.logger.debug(`Say: file ${filePath}, served from cache ${servedFromCache}`);
-            if (filePath) cs.trackTmpFile(filePath);
-            if (this.otelSpan) {
-              this.otelSpan.setAttributes({'tts.cached': servedFromCache});
-              this.otelSpan.end();
-              this.otelSpan = null;
-            }
-            if (!servedFromCache && rtt && !preCache  && !this._disableTracing) {
-              this.notifyStatus({
-                event: 'synthesized-audio',
-                vendor,
-                language,
-                characters: text.length,
-                elapsedTime: rtt
-              });
-            }
-          }
-          else {
-            this.logger.debug('Say: a streaming tts api will be used');
-            const modifiedPath = filePath.replace('say:{', `say:{session-uuid=${ep.uuid},`);
-            return modifiedPath;
-          }
-          return filePath;
-        } catch (err) {
-          this.logger.info({err}, 'Error synthesizing tts');
-          if (this.otelSpan) this.otelSpan.end();
-          writeAlerts({
-            account_sid: cs.accountSid,
-            alert_type: AlertType.TTS_FAILURE,
-            vendor,
-            detail: err.message,
-            target_sid: cs.callSid
-          }).catch((err) => this.logger.info({err}, 'Error generating alert for tts failure'));
-          throw err;
-        }
-      };
-
-      const arr = this.text.map((t) => (this._validateURL(t) ? t : generateAudio(t)));
-      return (await Promise.all(arr)).filter((fp) => fp && fp.length);
-    } catch (err) {
-      this.logger.info(err, 'TaskSay:exec error');
-      throw err;
-    }
-
-  }
-
-  _validateURL(urlString) {
-    try {
-      new URL(urlString);
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-}
-
-module.exports = TtsTask;
--- a/lib/utils/action-hook-delay.js
+++ b/lib/utils/action-hook-delay.js
@@ -1,187 +0,0 @@
-const makeTask = require('../tasks/make_task');
-const Emitter = require('events');
-const { normalizeJambones } = require('@jambonz/verb-specifications');
-const {TaskName} = require('../utils/constants');
-
-/**
- * ActionHookDelayProcessor
- * @extends Emitter
- *
- * @param {Object} logger - logger instance
- * @param {Object} opts - options
- * @param {Object} cs - call session
- * @param {Object} ep - endpoint
- *
- * @emits {Event} 'giveup' - when associated giveup timer expires
- *
- * Ref:https://www.jambonz.org/docs/supporting-articles/handling-action-hook-delays/
- */
-class ActionHookDelayProcessor extends Emitter {
-  constructor(logger, opts, cs) {
-    super();
-    this.logger = logger;
-    this.cs = cs;
-    this._active = false;
-
-    const enabled = this.init(opts);
-    if (enabled && this.noResponseTimeout &&
-          (!this.actions || !Array.isArray(this.actions) || this.actions.length === 0)) {
-      throw new Error('ActionHookDelayProcessor: no actions specified');
-    }
-    else if (enabled && this.actions &&
-          this.actions.some((a) => !a.verb || ![TaskName.Say, TaskName.Play].includes(a.verb))) {
-      throw new Error(`ActionHookDelayProcessor: invalid actions specified: ${JSON.stringify(this.actions)}`);
-    }
-  }
-
-  get properties() {
-    return {
-      actions: this.actions,
-      retries: this.retries,
-      noResponseTimeout: this.noResponseTimeout,
-      noResponseGiveUpTimeout: this.noResponseGiveUpTimeout
-    };
-  }
-
-  get ep() {
-    return this.cs.ep;
-  }
-
-  init(opts) {
-    this.logger.debug({opts}, 'ActionHookDelayProcessor#init');
-
-    this.actions = opts.actions;
-    this.retries = opts.retries || 0;
-    this.noResponseTimeout = opts.noResponseTimeout;
-    this.noResponseGiveUpTimeout = opts.noResponseGiveUpTimeout;
-    this.giveUpActions = opts.giveUpActions;
-
-    // return false if these options actually disable the ahdp
-    return ('enable' in opts && opts.enable === true) ||
-      ('enabled' in opts && opts.enabled === true) ||
-      (!('enable' in opts) && !('enabled' in opts));
-  }
-
-  start() {
-    this.logger.debug('ActionHookDelayProcessor#start');
-    if (this._active) {
-      this.logger.debug('ActionHookDelayProcessor#start: already started due to prior gather which is continuing');
-      return;
-    }
-    this._active = true;
-    this._retryCount = 0;
-    if (this.noResponseTimeout > 0) {
-      const timeoutMs =  this.noResponseTimeout * 1000;
-      this._noResponseTimer = setTimeout(this._onNoResponseTimer.bind(this), timeoutMs);
-    } else {
-      this.logger.debug(
-        'ActionHookDelayProcessor#start: noResponseTimeout is 0 or undefined hence not calling _onNoResponseTimer'
-      );
-    }
-
-    if (this.noResponseGiveUpTimeout > 0) {
-      const timeoutMs = this.noResponseGiveUpTimeout * 1000;
-      this._noResponseGiveUpTimer = setTimeout(this._onNoResponseGiveUpTimer.bind(this), timeoutMs);
-    }
-  }
-
-  async stop() {
-    this._active = false;
-
-    if (this._noResponseTimer) {
-      clearTimeout(this._noResponseTimer);
-      this._noResponseTimer = null;
-    }
-    if (this._noResponseGiveUpTimer) {
-      clearTimeout(this._noResponseGiveUpTimer);
-      this._noResponseGiveUpTimer = null;
-    }
-    if (this._taskInProgress) {
-      this.logger.debug(`ActionHookDelayProcessor#stop: stopping ${this._taskInProgress.name}`);
-
-      this._sayResolver = () => {
-        this.logger.debug('ActionHookDelayProcessor#stop: play/say is done, continue on..');
-        //this._taskInProgress.kill(this.cs);
-        this._taskInProgress = null;
-      };
-
-      /* we let Say finish, but interrupt Play */
-      if (TaskName.Play === this._taskInProgress.name) {
-        await this._taskInProgress.kill(this.cs);
-      }
-      return new Promise((resolve) => this._sayResolver = resolve);
-    }
-    this.logger.debug('ActionHookDelayProcessor#stop returning');
-  }
-
-  _onNoResponseTimer() {
-    this.logger.debug('ActionHookDelayProcessor#_onNoResponseTimer');
-    this._noResponseTimer = null;
-
-    /* get the next play or say action */
-    const verb = this.actions[this._retryCount % this.actions.length];
-
-    const t = normalizeJambones(this.logger, [verb]);
-    this.logger.debug({verb}, 'ActionHookDelayProcessor#_onNoResponseTimer: starting action');
-    try {
-      this._taskInProgress = makeTask(this.logger, t[0]);
-      this._taskInProgress.disableTracing = true;
-      this._taskInProgress.exec(this.cs, {ep: this.ep}).catch((err) => {
-        this.logger.info(`ActionHookDelayProcessor#_onNoResponseTimer: error playing file: ${err.message}`);
-        this._taskInProgress = null;
-        this.ep.removeAllListeners('playback-start');
-        this.ep.removeAllListeners('playback-stop');
-      });
-    } catch (err) {
-      this.logger.info(err, 'ActionHookDelayProcessor#_onNoResponseTimer: error starting action');
-      this._taskInProgress = null;
-      return;
-    }
-
-    this.ep.once('playback-start', (evt) => {
-      this.logger.debug({evt}, 'got playback-start');
-      if (!this._active) {
-        this.logger.info({evt}, 'ActionHookDelayProcessor#_onNoResponseTimer: killing audio immediately');
-
-        /* note: in race condition we may have just hung up and cs.ep cleared */
-        this.ep?.api('uuid_break', this.ep?.uuid)
-          .catch((err) => this.logger.info(err,
-            'ActionHookDelayProcessor#_onNoResponseTimer Error killing audio'));
-      }
-    });
-
-    this.ep.once('playback-stop', (evt) => {
-      this._taskInProgress = null;
-      if (this._sayResolver) {
-        /* we were waiting for the play to finish before continuing to next task */
-        this.logger.debug({evt}, 'ActionHookDelayProcessor#_onNoResponseTimer got playback-stop');
-        this._sayResolver();
-        this._sayResolver = null;
-      }
-      else {
-        /* possibly start the no response timer again */
-        if (this._active && this.retries > 0 && this._retryCount < this.retries && this.noResponseTimeout > 0) {
-          this.logger.debug({evt}, 'ActionHookDelayProcessor#_onNoResponseTimer: playback-stop on play/say action');
-          const timeoutMs = this.noResponseTimeout * 1000;
-          this._noResponseTimer = setTimeout(this._onNoResponseTimer.bind(this), timeoutMs);
-        }
-      }
-    });
-
-    this._retryCount++;
-  }
-
-  _onNoResponseGiveUpTimer() {
-    this._active = false;
-    if (!this.giveUpActions) {
-      this.logger.info('ActionHookDelayProcessor#_onNoResponseGiveUpTimer');
-      this.stop().catch((err) => {});
-      this.emit('giveup');
-    } else {
-      this.logger.info('ActionHookDelayProcessor#_onNoResponseGiveUpTimer - giveUpActions');
-      this.emit('giveupWithTasks', this.giveUpActions);
-    }
-  }
-}
-
-module.exports = ActionHookDelayProcessor;
--- a/lib/utils/amd-utils.js
+++ b/lib/utils/amd-utils.js
@@ -153,7 +153,7 @@ class Amd extends Emitter {
      const wordCount = t.alternatives[0].transcript.split(' ').length;
      const final = t.is_final;

-      const foundHint = hints.find((h) =>  t.alternatives[0].transcript.toLowerCase().includes(h.toLowerCase()));
+      const foundHint = hints.find((h) =>  t.alternatives[0].transcript.includes(h));
      if (foundHint) {
        /* we detected a common voice mail greeting */
        this.logger.debug(`Amd:evaluateTranscription: found hint ${foundHint}`);
@@ -210,8 +210,7 @@ module.exports = (logger) => {
        account_sid: cs.accountSid,
        alert_type: AlertType.STT_FAILURE,
        vendor: vendor,
-        detail: err.message,
-        target_sid: cs.callSid
+        detail: err.message
      });
    }).catch((err) => logger.info({err}, 'Error generating alert for tts failure'));

@@ -246,10 +245,7 @@ module.exports = (logger) => {
    const amd = ep.amd = new Amd(logger, cs, opts);
    const {vendor, language} = amd;
    let sttCredentials = amd.sttCredentials;
-    // hints from configuration might be too long for specific language and vendor that make transcribe freeswitch
-    // modules cannot connect to the vendor. hints is used in next step to validate if the transcription
-    // matchs voice mail hints.
-    const hints = [];
+    const hints = voicemailHints[language] || [];

    if (vendor === 'nuance' && sttCredentials.client_id) {
      /* get nuance access token */
@@ -270,7 +266,7 @@ module.exports = (logger) => {

    /* set stt options */
    logger.info(`starting amd for vendor ${vendor} and language ${language}`);
-    const sttOpts = amd.setChannelVarsForStt({name: TaskName.Gather}, sttCredentials, language, {
+    const sttOpts = amd.setChannelVarsForStt({name: TaskName.Gather}, sttCredentials, {
      vendor,
      hints,
      enhancedModel: true,
--- a/lib/utils/background-task-manager.js
+++ b/lib/utils/background-task-manager.js
@@ -1,221 +0,0 @@
-const { normalizeJambones } = require('@jambonz/verb-specifications');
-const makeTask = require('../tasks/make_task');
-const { JAMBONZ_RECORD_WS_BASE_URL, JAMBONZ_RECORD_WS_USERNAME, JAMBONZ_RECORD_WS_PASSWORD } = require('../config');
-const Emitter = require('events');
-
-class BackgroundTaskManager extends Emitter {
-  constructor({cs, logger, rootSpan}) {
-    super();
-    this.tasks = new Map();
-    this.cs = cs;
-    this.logger = logger;
-    this.rootSpan = rootSpan;
-  }
-
-  isTaskRunning(type) {
-    return this.tasks.has(type);
-  }
-
-  getTask(type) {
-    if (this.tasks.has(type)) {
-      return this.tasks.get(type);
-    }
-  }
-
-  count() {
-    return this.tasks.size;
-  }
-
-  async newTask(type, opts, sticky = false) {
-    this.logger.info({opts}, `initiating Background task ${type}`);
-    if (this.tasks.has(type)) {
-      this.logger.info(`Background task ${type} is running, skipped`);
-      return;
-    }
-    let task;
-    switch (type) {
-      case 'listen':
-        task = await this._initListen(opts);
-        break;
-      case 'bargeIn':
-        task = await this._initBargeIn(opts);
-        break;
-      case 'record':
-        task = await this._initRecord();
-        break;
-      case 'transcribe':
-        task = await this._initTranscribe(opts);
-        break;
-      case 'ttsStream':
-        task = await this._initTtsStream(opts);
-        break;
-      default:
-        break;
-    }
-    if (task) {
-      this.tasks.set(type, task);
-    }
-    if (task && sticky) task.sticky = true;
-    return task;
-  }
-
-  stop(type) {
-    const task = this.getTask(type);
-    if (task) {
-      this.logger.info(`stopping background task: ${type}`);
-      task.removeAllListeners();
-      task.span.end();
-      task.kill();
-      // Remove task from managed List
-      this.tasks.delete(type);
-    }
-  }
-
-  stopAll() {
-    this.logger.debug('BackgroundTaskManager:stopAll');
-    for (const key of this.tasks.keys()) {
-      this.stop(key);
-    }
-  }
-
-  // Initiate Listen
-  async _initListen(opts, bugname = 'jambonz-background-listen', ignoreCustomerData = false, type = 'listen') {
-    let task;
-    try {
-      const t = normalizeJambones(this.logger, [opts]);
-      task = makeTask(this.logger, t[0]);
-      task.bugname = bugname;
-      task.ignoreCustomerData = ignoreCustomerData;
-      const resources = await this.cs._evaluatePreconditions(task);
-      const {span, ctx} = this.rootSpan.startChildSpan(`background-${type}:${task.summary}`);
-      task.span = span;
-      task.ctx = ctx;
-      task.exec(this.cs, resources)
-        .then(this._taskCompleted.bind(this, type, task))
-        .catch(this._taskError.bind(this, type, task));
-    } catch (err) {
-      this.logger.info({err, opts}, `BackgroundTaskManager:_initListen - Error creating ${bugname} task`);
-    }
-    return task;
-  }
-
-  // Initiate Gather
-  async _initBargeIn(opts) {
-    let task;
-    try {
-      const copy = JSON.parse(JSON.stringify(opts));
-      const t = normalizeJambones(this.logger, [opts]);
-      task = makeTask(this.logger, t[0]);
-      task
-        .once('dtmf', this._bargeInTaskCompleted.bind(this))
-        .once('vad', this._bargeInTaskCompleted.bind(this))
-        .once('transcription', this._bargeInTaskCompleted.bind(this))
-        .once('timeout', this._bargeInTaskCompleted.bind(this));
-      const resources = await this.cs._evaluatePreconditions(task);
-      const {span, ctx} = this.rootSpan.startChildSpan(`background-bargeIn:${task.summary}`);
-      task.span = span;
-      task.ctx = ctx;
-      task.bugname_prefix = 'background_bargeIn_';
-      task.exec(this.cs, resources)
-        .then(() => {
-          this._taskCompleted('bargeIn', task);
-          if (task.sticky && !this.cs.callGone && !this.cs._stopping) {
-            this.logger.info('BackgroundTaskManager:_initBargeIn: restarting background bargeIn');
-            this._bargeInHandled = false;
-            this.newTask('bargeIn', copy, true);
-          }
-          return;
-        })
-        .catch(this._taskError.bind(this, 'bargeIn', task));
-    } catch (err) {
-      this.logger.info(err, 'BackgroundTaskManager:_initGather - Error creating bargeIn task');
-    }
-    return task;
-  }
-
-  // Initiate Record
-  async _initRecord() {
-    if (this.cs.accountInfo.account.record_all_calls || this.cs.application.record_all_calls) {
-      if (!JAMBONZ_RECORD_WS_BASE_URL || !this.cs.accountInfo.account.bucket_credential) {
-        this.logger.error('_initRecord: invalid cfg - missing JAMBONZ_RECORD_WS_BASE_URL or bucket config');
-        return undefined;
-      }
-      const listenOpts = {
-        url: `${JAMBONZ_RECORD_WS_BASE_URL}/record/${this.cs.accountInfo.account.bucket_credential.vendor}`,
-        disableBidirectionalAudio: true,
-        mixType : 'stereo',
-        passDtmf: true
-      };
-      if (JAMBONZ_RECORD_WS_USERNAME && JAMBONZ_RECORD_WS_PASSWORD) {
-        listenOpts.wsAuth = {
-          username: JAMBONZ_RECORD_WS_USERNAME,
-          password: JAMBONZ_RECORD_WS_PASSWORD
-        };
-      }
-      this.logger.debug({listenOpts}, '_initRecord: enabling listen');
-      return await this._initListen({verb: 'listen', ...listenOpts}, 'jambonz-session-record', true, 'record');
-    }
-  }
-
-  // Initiate Transcribe
-  async _initTranscribe(opts) {
-    let task;
-    try {
-      const t = normalizeJambones(this.logger, [opts]);
-      task = makeTask(this.logger, t[0]);
-      const resources = await this.cs._evaluatePreconditions(task);
-      const {span, ctx} = this.rootSpan.startChildSpan(`background-transcribe:${task.summary}`);
-      task.span = span;
-      task.ctx = ctx;
-      task.bugname_prefix = 'background_transcribe_';
-      task.exec(this.cs, resources)
-        .then(this._taskCompleted.bind(this, 'transcribe', task))
-        .catch(this._taskError.bind(this, 'transcribe', task));
-    } catch (err) {
-      this.logger.info(err, 'BackgroundTaskManager:_initTranscribe - Error creating transcribe task');
-    }
-    return task;
-  }
-
-  // Initiate Tts Stream
-  async _initTtsStream(opts) {
-    let task;
-    try {
-      const t = normalizeJambones(this.logger, [opts]);
-      task = makeTask(this.logger, t[0]);
-      const resources = await this.cs._evaluatePreconditions(task);
-      const {span, ctx} = this.rootSpan.startChildSpan(`background-ttsStream:${task.summary}`);
-      task.span = span;
-      task.ctx = ctx;
-      task.exec(this.cs, resources)
-        .then(this._taskCompleted.bind(this, 'ttsStream', task))
-        .catch(this._taskError.bind(this, 'ttsStream', task));
-    } catch (err) {
-      this.logger.info(err, 'BackgroundTaskManager:_initTtsStream - Error creating ttsStream task');
-    }
-    return task;
-  }
-
-  _taskCompleted(type, task) {
-    this.logger.debug({type, task}, `BackgroundTaskManager:_taskCompleted: task completed, sticky: ${task.sticky}`);
-    task.removeAllListeners();
-    task.span.end();
-    this.tasks.delete(type);
-  }
-  _taskError(type, task, error) {
-    this.logger.info({type, task, error}, 'BackgroundTaskManager:_taskError: task Error');
-    task.removeAllListeners();
-    task.span.end();
-    this.tasks.delete(type);
-  }
-
-  _bargeInTaskCompleted(evt) {
-    if (this._bargeInHandled) return;
-    this._bargeInHandled = true;
-    this.logger.debug({evt},
-      'BackgroundTaskManager:_bargeInTaskCompleted on event from background bargeIn, emitting bargein-done event');
-    this.emit('bargeIn-done', evt);
-  }
-}
-
-module.exports = BackgroundTaskManager;
--- a/lib/utils/constants.json
+++ b/lib/utils/constants.json
@@ -1,20 +1,18 @@
 {
  "TaskName": {
-    "Answer": "answer",
+    "Cognigy": "cognigy",
    "Conference": "conference",
    "Config": "config",
    "Dequeue": "dequeue",
    "Dial": "dial",
    "Dialogflow": "dialogflow",
    "Dtmf": "dtmf",
-    "Dub": "dub",
    "Enqueue": "enqueue",
    "Gather": "gather",
    "Hangup": "hangup",
    "Leave": "leave",
    "Lex": "lex",
    "Listen": "listen",
-    "Llm": "llm",
    "Message": "message",
    "Pause": "pause",
    "Play": "play",
@@ -31,8 +29,7 @@
    "Tag": "tag",
    "Transcribe": "transcribe"
  },
-  "AllowedSipRecVerbs": ["answer", "config", "gather", "transcribe", "listen", "tag"],
-  "AllowedConfirmSessionVerbs": ["config", "gather", "plays", "say", "tag"],
+  "AllowedSipRecVerbs": ["config", "gather", "transcribe", "listen", "tag"],
  "CallStatus": {
    "Trying": "trying",
    "Ringing": "ringing",
@@ -98,10 +95,6 @@
    "Transcription": "soniox_transcribe::transcription",
    "Error": "soniox_transcribe::error"
  },
-  "VerbioTranscriptionEvents": {
-    "Transcription": "verbio_transcribe::transcription",
-    "Error": "verbio_transcribe::error"
-  },
  "CobaltTranscriptionEvents": {
    "Transcription": "cobalt_speech::transcription",
    "CompileContext": "cobalt_speech::compile_context_response",
@@ -127,30 +120,12 @@
    "NoSpeechDetected": "azure_transcribe::no_speech_detected",
    "VadDetected": "azure_transcribe::vad_detected"
  },
-  "SpeechmaticsTranscriptionEvents": {
-    "Transcription": "speechmatics_transcribe::transcription",
-    "Translation": "speechmatics_transcribe::translation",
-    "Info": "speechmatics_transcribe::info",
-    "RecognitionStarted": "speechmatics_transcribe::recognition_started",
-    "ConnectFailure": "speechmatics_transcribe::connect_failed",
-    "Connect": "speechmatics_transcribe::connect",
-    "Error": "speechmatics_transcribe::error"
-  },
  "JambonzTranscriptionEvents": {
    "Transcription": "jambonz_transcribe::transcription",
    "ConnectFailure": "jambonz_transcribe::connect_failed",
    "Connect": "jambonz_transcribe::connect",
    "Error": "jambonz_transcribe::error"
  },
-  "AssemblyAiTranscriptionEvents": {
-    "Transcription": "assemblyai_transcribe::transcription",
-    "Error": "assemblyai_transcribe::error",
-    "ConnectFailure": "assemblyai_transcribe::connect_failed",
-    "Connect": "assemblyai_transcribe::connect"
-  },
-  "VadDetection": {
-    "Detection": "vad_detect:detection"
-  },
  "ListenEvents": {
    "Connect": "mod_audio_fork::connect",
    "ConnectFailure": "mod_audio_fork::connect_failed",
@@ -168,20 +143,6 @@
    "StandbyEnter": "standby-enter",
    "StandbyExit": "standby-exit"
  },
-  "LlmEvents_OpenAI": {
-    "Error": "error",
-    "Connect": "openai_s2s::connect",
-    "ConnectFailure": "openai_s2s::connect_failed",
-    "Disconnect": "openai_s2s::disconnect",
-    "ServerEvent": "openai_s2s::server_event"
-  },
-  "LlmEvents_VoiceAgent": {
-    "Error": "error",
-    "Connect": "voice_agent_s2s::connect",
-    "ConnectFailure": "voice_agent_s2s::connect_failed",
-    "Disconnect": "voice_agent_s2s::disconnect",
-    "ServerEvent": "voice_agent_s2s::server_event"
-  },
  "QueueResults": {
    "Bridged": "bridged",
    "Error": "error",
@@ -196,23 +157,17 @@
  },
  "KillReason": {
    "Hangup": "hangup",
-    "Replaced": "replaced",
-    "MediaTimeout": "media_timeout"
+    "Replaced": "replaced"
  },
  "HookMsgTypes": [
    "session:new",
    "session:reconnect",
    "session:redirect",
-    "session:adulting",
    "call:status",
    "queue:status",
    "dial:confirm",
    "verb:hook",
    "verb:status",
-    "llm:event",
-    "llm:tool-call",
-    "tts:tokens-result",
-    "tts:streaming-event",
    "jambonz:error"
  ],
  "RecordState": {
@@ -231,45 +186,7 @@
    "ToneTimeout": "amd_tone_timeout",
    "Stopped": "amd_stopped"
  },
-  "MediaPath": {
-    "NoMedia": "no-media",
-    "PartialMedia": "partial-media",
-    "FullMedia": "full-media"
-  },
-  "DeepgramTtsStreamingEvents": {
-    "Empty": "deepgram_tts_streaming::empty",
-    "ConnectFailure": "deepgram_tts_streaming::connect_failed",
-    "Connect": "deepgram_tts_streaming::connect"
-  },
-  "CartesiaTtsStreamingEvents": {
-    "Empty": "cartesia_tts_streaming::empty",
-    "ConnectFailure": "cartesia_tts_streaming::connect_failed",
-    "Connect": "cartesia_tts_streaming::connect"
-  },
-  "ElevenlabsTtsStreamingEvents": {
-    "Empty": "elevenlabs_tts_streaming::empty",
-    "ConnectFailure": "elevenlabs_tts_streaming::connect_failed",
-    "Connect": "elevenlabs_tts_streaming::connect"
-  },
-  "TtsStreamingEvents": {
-    "Empty": "tts_streaming::empty",
-    "Pause": "tts_streaming::pause",
-    "Resume": "tts_streaming::resume",
-    "ConnectFailure": "tts_streaming::connect_failed"
-  },
-  "TtsStreamingConnectionStatus": {
-    "NotConnected": "not_connected",
-    "Connected": "connected",
-    "Connecting": "connecting",
-    "Failed": "failed"
-  },
  "MAX_SIMRINGS": 10,
  "BONG_TONE": "tone_stream://v=-7;%(100,0,941.0,1477.0);v=-7;>=2;+=.1;%(1400,0,350,440)",
-  "FS_UUID_SET_NAME": "fsUUIDs",
-  "SystemState" : {
-    "Online": "ONLINE",
-    "Offline": "OFFLINE",
-    "GracefulShutdownInProgress":"SHUTDOWN_IN_PROGRESS"
-  },
-  "FEATURE_SERVER" : "feature-server"
+  "FS_UUID_SET_NAME": "fsUUIDs"
 }
--- a/lib/utils/db-utils.js
+++ b/lib/utils/db-utils.js
@@ -27,9 +27,6 @@ WHERE pn.account_sid IS NULL
 AND pn.service_provider_sid = 
 (SELECT service_provider_sid from accounts where account_sid = ?) 
 AND pn.number = ?`;
-const sqlQueryGoogleCustomVoices = `SELECT *
-FROM google_custom_voices
-WHERE google_custom_voice_sid = ?`;

 const speechMapper = (cred) => {
  const {credential, ...obj} = cred;
@@ -41,7 +38,6 @@ const speechMapper = (cred) => {
      const o = JSON.parse(decrypt(credential));
      obj.access_key_id = o.access_key_id;
      obj.secret_access_key = o.secret_access_key;
-      obj.role_arn = o.role_arn;
      obj.aws_region = o.aws_region;
    }
    else if ('microsoft' === obj.vendor) {
@@ -76,9 +72,6 @@ const speechMapper = (cred) => {
    else if ('deepgram' === obj.vendor) {
      const o = JSON.parse(decrypt(credential));
      obj.api_key = o.api_key;
-      obj.deepgram_stt_uri = o.deepgram_stt_uri;
-      obj.deepgram_tts_uri = o.deepgram_tts_uri;
-      obj.deepgram_stt_use_tls = o.deepgram_stt_use_tls;
    }
    else if ('soniox' === obj.vendor) {
      const o = JSON.parse(decrypt(credential));
@@ -91,54 +84,11 @@ const speechMapper = (cred) => {
    else if ('cobalt' === obj.vendor) {
      const o = JSON.parse(decrypt(credential));
      obj.cobalt_server_uri = o.cobalt_server_uri;
-    }
-    else if ('elevenlabs' === obj.vendor) {
+    } else if ('elevenlabs' === obj.vendor) {
      const o = JSON.parse(decrypt(credential));
      obj.api_key = o.api_key;
      obj.model_id = o.model_id;
-      obj.options = o.options;
-    }
-    else if ('playht' === obj.vendor) {
-      const o = JSON.parse(decrypt(credential));
-      obj.api_key = o.api_key;
-      obj.user_id = o.user_id;
-      obj.voice_engine = o.voice_engine;
-      obj.options = o.options;
-    }
-    else if ('cartesia' === obj.vendor) {
-      const o = JSON.parse(decrypt(credential));
-      obj.api_key = o.api_key;
-      obj.model_id = o.model_id;
-      obj.embedding = o.embedding;
-      obj.options = o.options;
-    }
-    else if ('rimelabs' === obj.vendor) {
-      const o = JSON.parse(decrypt(credential));
-      obj.api_key = o.api_key;
-      obj.model_id = o.model_id;
-      obj.options = o.options;
-    }
-    else if ('assemblyai' === obj.vendor) {
-      const o = JSON.parse(decrypt(credential));
-      obj.api_key = o.api_key;
-    }
-    else if ('whisper' === obj.vendor) {
-      const o = JSON.parse(decrypt(credential));
-      obj.api_key = o.api_key;
-      obj.model_id = o.model_id;
-    }
-    else if ('verbio' === obj.vendor) {
-      const o = JSON.parse(decrypt(credential));
-      obj.client_id = o.client_id;
-      obj.client_secret = o.client_secret;
-      obj.engine_version = o.engine_version;
-    }
-    else if ('speechmatics' === obj.vendor) {
-      const o = JSON.parse(decrypt(credential));
-      obj.api_key = o.api_key;
-      obj.speechmatics_stt_uri = o.speechmatics_stt_uri;
-    }
-    else if (obj.vendor.startsWith('custom:')) {
+    } else if (obj.vendor.startsWith('custom:')) {
      const o = JSON.parse(decrypt(credential));
      obj.auth_token = o.auth_token;
      obj.custom_stt_url = o.custom_stt_url;
@@ -211,34 +161,10 @@ module.exports = (logger, srf) => {
    }
  };

-  const lookupGoogleCustomVoice = async(google_custom_voice_sid) => {
-    const pp = pool.promise();
-    try {
-      const [r] = await pp.query(sqlQueryGoogleCustomVoices, [google_custom_voice_sid]);
-      return r;
-
-    } catch (err) {
-      logger.error({err}, `lookupGoogleCustomVoices: Error ${google_custom_voice_sid}`);
-    }
-  };
-
-  const lookupVoipCarrierBySid = async(sid) => {
-    const pp = pool.promise();
-    try {
-      const [r] = await pp.query('SELECT * FROM voip_carriers WHERE voip_carrier_sid = ?', [sid]);
-      return r;
-
-    } catch (err) {
-      logger.error({err}, `lookupVoipCarrierBySid: Error ${sid}`);
-    }
-  };
-
  return {
    lookupAccountDetails,
    updateSpeechCredentialLastUsed,
    lookupCarrier,
-    lookupCarrierByPhoneNumber,
-    lookupGoogleCustomVoice,
-    lookupVoipCarrierBySid
+    lookupCarrierByPhoneNumber
  };
 };
--- a/lib/utils/error.js
+++ b/lib/utils/error.js
@@ -1,24 +0,0 @@
-class NonFatalTaskError extends Error {
-  constructor(msg) {
-    super(msg);
-  }
-}
-
-class SpeechCredentialError extends NonFatalTaskError {
-  constructor(msg) {
-    super(msg);
-  }
-}
-
-class PlayFileNotFoundError extends NonFatalTaskError {
-  constructor(url) {
-    super('File not found');
-    this.url = url;
-  }
-}
-
-module.exports = {
-  SpeechCredentialError,
-  NonFatalTaskError,
-  PlayFileNotFoundError
-};
--- a/lib/utils/http-requestor.js
+++ b/lib/utils/http-requestor.js
@@ -14,7 +14,6 @@ const {
  HTTP_PROXY_PORT,
  HTTP_PROXY_PROTOCOL,
  NODE_ENV,
-  HTTP_USER_AGENT_HEADER,
 } = require('../config');

 const toBase64 = (str) => Buffer.from(str || '', 'utf8').toString('base64');
@@ -117,10 +116,6 @@ class HttpRequestor extends BaseRequestor {
    const url = hook.url || hook;
    const method = hook.method || 'POST';
    let buf = '';
-    httpHeaders = {
-      ...httpHeaders,
-      ...(HTTP_USER_AGENT_HEADER && {'user-agent' : HTTP_USER_AGENT_HEADER})
-    };

    assert.ok(url, 'HttpRequestor:request url was not provided');
    assert.ok, (['GET', 'POST'].includes(method), `HttpRequestor:request method must be 'GET' or 'POST' not ${method}`);
--- a/lib/utils/install-srf-locals.js
+++ b/lib/utils/install-srf-locals.js
@@ -1,5 +1,5 @@
 const Mrf = require('drachtio-fsmrf');
-const os = require('os');
+const ip = require('ip');
 const {
  JAMBONES_MYSQL_HOST,
  JAMBONES_MYSQL_USER,
@@ -8,29 +8,18 @@ const {
  JAMBONES_MYSQL_CONNECTION_LIMIT,
  JAMBONES_MYSQL_PORT,
  JAMBONES_FREESWITCH,
+  JAMBONES_REDIS_HOST,
+  JAMBONES_REDIS_PORT,
+  JAMBONES_REDIS_SENTINELS,
  SMPP_URL,
  JAMBONES_TIME_SERIES_HOST,
  JAMBONES_ESL_LISTEN_ADDRESS,
  PORT,
-  HTTP_IP,
  NODE_ENV,
 } = require('../config');
 const Registrar = require('@jambonz/mw-registrar');
 const assert = require('assert');

-function getLocalIp() {
-  const interfaces = os.networkInterfaces();
-  for (const interfaceName in interfaces) {
-    const interface = interfaces[interfaceName];
-    for (const iface of interface) {
-      if (iface.family === 'IPv4' && !iface.internal) {
-        return iface.address;
-      }
-    }
-  }
-  return '127.0.0.1'; // Fallback to localhost if no suitable interface found
-}
-
 function initMS(logger, wrapper, ms) {
  Object.assign(wrapper, {ms, active: true, connects: 1});
  logger.info(`connected to freeswitch at ${ms.address}`);
@@ -151,9 +140,7 @@ function installSrfLocals(srf, logger) {
    lookupTeamsByAccount,
    lookupAccountBySid,
    lookupAccountCapacitiesBySid,
-    lookupSmppGateways,
-    lookupClientByAccountAndUsername,
-    lookupSystemInformation
+    lookupSmppGateways
  } = require('@jambonz/db-helpers')({
    host: JAMBONES_MYSQL_HOST,
    user: JAMBONES_MYSQL_USER,
@@ -186,21 +173,23 @@ function installSrfLocals(srf, logger) {
    retrieveFromSortedSet,
    retrieveByPatternSortedSet,
    sortedSetLength,
-    sortedSetPositionByPattern,
-  } = require('@jambonz/realtimedb-helpers')({}, logger, tracer);
+    sortedSetPositionByPattern
+  } = require('@jambonz/realtimedb-helpers')(JAMBONES_REDIS_SENTINELS || {
+    host: JAMBONES_REDIS_HOST,
+    port: JAMBONES_REDIS_PORT || 6379
+  }, logger, tracer);
  const registrar = new Registrar(logger, client);
  const {
    synthAudio,
-    addFileToCache,
    getNuanceAccessToken,
    getIbmAccessToken,
-    getAwsAuthToken,
-    getVerbioAccessToken
-  } = require('@jambonz/speech-utils')({}, logger);
+  } = require('@jambonz/speech-utils')(JAMBONES_REDIS_SENTINELS || {
+    host: JAMBONES_REDIS_HOST,
+    port: JAMBONES_REDIS_PORT || 6379
+  }, logger, tracer);
  const {
    writeAlerts,
-    AlertType,
-    writeSystemAlerts
+    AlertType
  } = require('@jambonz/time-series')(logger, {
    host: JAMBONES_TIME_SERIES_HOST,
    commitSize: 50,
@@ -209,8 +198,7 @@ function installSrfLocals(srf, logger) {

  let localIp;
  try {
-    // Either use the configured IP address or discover it
-    localIp = HTTP_IP || getLocalIp();
+    localIp = ip.address();
  } catch (err) {
    logger.error({err}, 'installSrfLocals - error detecting local ipv4 address');
  }
@@ -229,15 +217,11 @@ function installSrfLocals(srf, logger) {
      lookupAccountBySid,
      lookupAccountCapacitiesBySid,
      lookupSmppGateways,
-      lookupClientByAccountAndUsername,
-      lookupSystemInformation,
      updateCallStatus,
      retrieveCall,
      listCalls,
      deleteCall,
      synthAudio,
-      getAwsAuthToken,
-      addFileToCache,
      createHash,
      retrieveHash,
      deleteKey,
@@ -258,8 +242,7 @@ function installSrfLocals(srf, logger) {
      retrieveFromSortedSet,
      retrieveByPatternSortedSet,
      sortedSetLength,
-      sortedSetPositionByPattern,
-      getVerbioAccessToken
+      sortedSetPositionByPattern
    },
    parentLogger: logger,
    getSBC,
@@ -270,8 +253,7 @@ function installSrfLocals(srf, logger) {
    getFreeswitch,
    stats: stats,
    writeAlerts,
-    AlertType,
-    writeSystemAlerts
+    AlertType
  };

  if (localIp) {
--- a/lib/utils/network.js
+++ b/lib/utils/network.js
@@ -1,32 +0,0 @@
-
-/**
- * Parses a list of hostport entries and selects the first one that matches the specified protocol,
- * excluding any entries with the localhost IP address ('127.0.0.1').
- *
- * Each hostport entry should be in the format: 'protocol/ip:port'
- *
- * @param {Object} logger - A logging object with a 'debug' method for logging debug messages.
- * @param {string} hostport - A comma-separated string containing hostport entries.
- * @param {string} protocol - The protocol to match (e.g., 'udp', 'tcp').
- * @returns {Array} An array containing:
- * 0: protocol
- * 1: ip address
- * 2: port
- */
-const selectHostPort = (logger, hostport, protocol) => {
-  logger.debug(`selectHostPort: ${hostport}, ${protocol}`);
-  const sel = hostport
-    .split(',')
-    .map((hp) => {
-      const arr = /(.*)\/(.*):(.*)/.exec(hp);
-      return [arr[1], arr[2], arr[3]];
-    })
-    .filter((hp) => {
-      return hp[0] === protocol && hp[1] !== '127.0.0.1';
-    });
-  return sel[0];
-};
-
-module.exports = {
-  selectHostPort
-};
--- a/lib/utils/parse-decibels.js
+++ b/lib/utils/parse-decibels.js
@@ -1,18 +0,0 @@
-const parseDecibels = (db) => {
-  if (!db) return 0;
-  if (typeof db === 'number') {
-    return db;
-  }
-  else if (typeof db === 'string') {
-    const match = db.match(/([+-]?\d+(\.\d+)?)\s*db/i);
-    if (match) {
-      return Math.trunc(parseFloat(match[1]));
-    } else {
-      return 0;
-    }
-  } else {
-    return 0;
-  }
-};
-
-module.exports = parseDecibels;
--- a/lib/utils/place-outdial.js
+++ b/lib/utils/place-outdial.js
@@ -1,5 +1,5 @@
 const Emitter = require('events');
-const {CallStatus, MediaPath} = require('./constants');
+const {CallStatus} = require('./constants');
 const SipError = require('drachtio-srf').SipError;
 const {TaskPreconditions, CallDirection} = require('../utils/constants');
 const CallInfo = require('../session/call-info');
@@ -13,18 +13,9 @@ const moment = require('moment');
 const stripCodecs = require('./strip-ancillary-codecs');
 const RootSpan = require('./call-tracer');
 const uuidv4 = require('uuid-random');
-const HttpRequestor = require('./http-requestor');
-const WsRequestor = require('./ws-requestor');
-const {makeOpusFirst} = require('./sdp-utils');
-const {
-  JAMBONES_USE_FREESWITCH_TIMER_FD,
-  JAMBONES_MEDIA_TIMEOUT_MS,
-  JAMBONES_MEDIA_HOLD_TIMEOUT_MS
-} = require('../config');

 class SingleDialer extends Emitter {
-  constructor({logger, sbcAddress, target, opts, application, callInfo, accountInfo, rootSpan, startSpan, dialTask,
-    onHoldMusic}) {
+  constructor({logger, sbcAddress, target, opts, application, callInfo, accountInfo, rootSpan, startSpan, dialTask}) {
    super();
    assert(target.type);

@@ -47,7 +38,6 @@ class SingleDialer extends Emitter {

    this.callSid = uuidv4();
    this.dialTask = dialTask;
-    this.onHoldMusic = onHoldMusic;

    this.on('callStatusChange', this._notifyCallStatusChange.bind(this));
  }
@@ -86,8 +76,7 @@ class SingleDialer extends Emitter {
      ...(this.from.host && {'X-Preferred-From-Host': this.from.host}),
      'X-Jambonz-Routing': this.target.type,
      'X-Call-Sid': this.callSid,
-      ...(this.applicationSid && {'X-Application-Sid': this.applicationSid}),
-      ...(this.target.proxy && {'X-SIP-Proxy': this.target.proxy})
+      ...(this.applicationSid && {'X-Application-Sid': this.applicationSid})
    };
    if (srf.locals.fsUUID) {
      opts.headers = {
@@ -138,7 +127,6 @@ class SingleDialer extends Emitter {
      this.serviceUrl = srf.locals.serviceUrl;

      this.ep = await ms.createEndpoint();
-      this._configMsEndpoint();
      this.logger.debug(`SingleDialer:exec - created endpoint ${this.ep.uuid}`);

      /**
@@ -160,7 +148,7 @@ class SingleDialer extends Emitter {

      Object.assign(opts, {
        proxy: `sip:${this.sbcAddress}`,
-        localSdp: opts.opusFirst ? makeOpusFirst(this.ep.local.sdp) : this.ep.local.sdp
+        localSdp: this.ep.local.sdp
      });
      if (this.target.auth) opts.auth = this.target.auth;
      inviteSpan = this.startSpan('invite', {
@@ -188,7 +176,6 @@ class SingleDialer extends Emitter {
           *  (a) create a logger for this call
           */
          req.srf = srf;
-          this.req = req;
          this.callInfo = new CallInfo({
            direction: CallDirection.Outbound,
            parentCallInfo: this.parentCallInfo,
@@ -197,10 +184,6 @@ class SingleDialer extends Emitter {
            callSid: this.callSid,
            traceId: this.rootSpan.traceId
          });
-          if (this.dialTask && this.dialTask.tag !== null &&
-            typeof this.dialTask.tag === 'object' && !Array.isArray(this.dialTask.tag)) {
-            this.callInfo.customerData = this.dialTask.tag;
-          }
          this.logger = srf.locals.parentLogger.child({
            callSid: this.callSid,
            parentCallSid: this.parentCallInfo.callSid,
@@ -215,8 +198,6 @@ class SingleDialer extends Emitter {
        },
        cbProvisional: (prov) => {
          const status = {sipStatus: prov.status, sipReason: prov.reason};
-          // Update call-id for sbc outbound INVITE
-          this.callInfo.sbcCallid = prov.get('X-CID');
          if ([180, 183].includes(prov.status) && prov.body) {
            if (status.callStatus !== CallStatus.EarlyMedia) {
              status.callStatus = CallStatus.EarlyMedia;
@@ -267,7 +248,7 @@ class SingleDialer extends Emitter {
        .on('modify', async(req, res) => {
          try {
            if (this.ep) {
-              if (this.dialTask && this.dialTask.isOnHoldEnabled) {
+              if (this.dialTask && this.dialTask.isOnHold) {
                this.logger.info('dial is onhold, emit event');
                this.emit('reinvite', req, res);
              } else {
@@ -299,17 +280,17 @@ class SingleDialer extends Emitter {
        if (err.status === 487) status.callStatus = CallStatus.NoAnswer;
        else if ([486, 600].includes(err.status)) status.callStatus = CallStatus.Busy;
        this.logger.info(`SingleDialer:exec outdial failure ${err.status}`);
-        inviteSpan?.setAttributes({'invite.status_code': err.status});
-        inviteSpan?.end();
+        inviteSpan.setAttributes({'invite.status_code': err.status});
+        inviteSpan.end();
      }
      else {
        this.logger.error(err, 'SingleDialer:exec');
        status.sipStatus = 500;
-        inviteSpan?.setAttributes({
+        inviteSpan.setAttributes({
          'invite.status_code': 500,
          'invite.err': err.message
        });
-        inviteSpan?.end();
+        inviteSpan.end();
      }
      this.emit('callStatusChange', status);
      if (this.ep) this.ep.destroy();
@@ -319,19 +300,14 @@ class SingleDialer extends Emitter {
  /**
   * kill the call in progress or the stable dialog, whichever we have
   */
-  async kill(Reason) {
+  async kill() {
    this.killed = true;
    if (this.inviteInProgress) await this.inviteInProgress.cancel();
    else if (this.dlg && this.dlg.connected) {
      const duration = moment().diff(this.dlg.connectTime, 'seconds');
      this.logger.debug('SingleDialer:kill hanging up called party');
      this.emit('callStatusChange', {callStatus: CallStatus.Completed, duration});
-      const headers = {
-        ...(Reason && {'X-Reason': Reason})
-      };
-      this.dlg.destroy({
-        headers
-      });
+      this.dlg.destroy();
    }
    if (this.ep) {
      this.logger.debug(`SingleDialer:kill - deleting endpoint ${this.ep.uuid}`);
@@ -339,27 +315,6 @@ class SingleDialer extends Emitter {
    }
  }

-  _configMsEndpoint() {
-    const opts = {
-      ...(this.onHoldMusic && {holdMusic: `shout://${this.onHoldMusic.replace(/^https?:\/\//, '')}`}),
-      ...(JAMBONES_USE_FREESWITCH_TIMER_FD && {timer_name: 'timerfd'}),
-      ...(JAMBONES_MEDIA_TIMEOUT_MS && {media_timeout: JAMBONES_MEDIA_TIMEOUT_MS}),
-      ...(JAMBONES_MEDIA_HOLD_TIMEOUT_MS && {media_hold_timeout: JAMBONES_MEDIA_HOLD_TIMEOUT_MS})
-    };
-    if (Object.keys(opts).length > 0) {
-      this.ep.set(opts);
-    }
-    if (this.dialTask?.inbandDtmfEnabled && !this.ep.inbandDtmfEnabled) {
-      // https://developer.signalwire.com/freeswitch/FreeSWITCH-Explained/Modules/mod-dptools/6587132/#0-about
-      try {
-        this.ep.execute('start_dtmf');
-        this.ep.inbandDtmfEnabled = true;
-      } catch (err) {
-        this.logger.info(err, 'place-outdial:_configMsEndpoint - error enable inband DTMF');
-      }
-    }
-  }
-
  /**
   * Run an application on the call after answer, e.g. call screening.
   * Once the application completes in some fashion, emit an 'accepted' event
@@ -371,16 +326,10 @@ class SingleDialer extends Emitter {
    try {
      // retrieve set of tasks
      const json = await this.requestor.request('dial:confirm', confirmHook, this.callInfo.toJSON());
-      if (!json || (Array.isArray(json) && json.length === 0)) {
-        this.logger.info('SingleDialer:_executeApp: no tasks returned from confirm hook');
-        this.emit('accept');
-        return;
-      }
      const tasks = normalizeJambones(this.logger, json).map((tdata) => makeTask(this.logger, tdata));
      // verify it contains only allowed verbs
      const allowedTasks = tasks.filter((task) => {
        return [
-          TaskPreconditions.None,
          TaskPreconditions.StableCall,
          TaskPreconditions.Endpoint
        ].includes(task.preconditions);
@@ -399,8 +348,7 @@ class SingleDialer extends Emitter {
        callInfo: this.callInfo,
        accountInfo: this.accountInfo,
        tasks,
-        rootSpan: this.rootSpan,
-        req: this.req
+        rootSpan: this.rootSpan
      });
      await cs.exec();

@@ -429,83 +377,40 @@ class SingleDialer extends Emitter {
    this.dlg.linkedSpanId = this.rootSpan.traceId;
    const rootSpan = new RootSpan('outbound-call', this.dlg);
    const newLogger = logger.child({traceId: rootSpan.traceId});
-    //clone application from parent call with new requestor
-    //parrent application will be closed in case the parent hangup
-    const app = {...application};
-    if ('WS' === app.call_hook?.method ||
-      app.call_hook?.url.startsWith('ws://') || app.call_hook?.url.startsWith('wss://')) {
-      if (app.call_hook?.url) app.call_hook.url += '/adulting';
-      const requestor = new WsRequestor(logger, this.accountInfo.account.account_sid,
-        app.call_hook, this.accountInfo.account.webhook_secret);
-      app.requestor = requestor;
-      app.notifier = requestor;
-      app.call_hook.method = 'WS';
-    }
-    else {
-      app.requestor = new HttpRequestor(logger, this.accountInfo.account.account_sid,
-        app.call_hook, this.accountInfo.account.webhook_secret);
-      if (app.call_status_hook) app.notifier = new HttpRequestor(logger,
-        this.accountInfo.account.account_sid, app.call_status_hook,
-        this.accountInfo.account.webhook_secret);
-      else app.notifier = {request: () => {}, close: () => {}};
-    }
-    // Replace old application with new application.
-    this.application = app;
    const cs = new AdultingCallSession({
      logger: newLogger,
      singleDialer: this,
-      application: app,
+      application,
      callInfo: this.callInfo,
      accountInfo: this.accountInfo,
      tasks,
      rootSpan
    });
-    app.requestor.request('session:adulting', '/adulting', {
-      ...cs.callInfo.toJSON(),
-      parentCallInfo: this.parentCallInfo.toJSON()
-    }).catch((err) => {
-      newLogger.error({err}, 'doAdulting: error sending adulting request');
-    });
-
-    cs.req = this.req;
-    // fixed hangup an adulting session does not send status callback Completed
-    cs.wrapDialog(this.dlg);
    cs.exec().catch((err) => newLogger.error({err}, 'doAdulting: error executing session'));
    return cs;
  }

-  async releaseMediaToSBC(remoteSdp, localSdp, releaseMediaEntirely) {
+  async releaseMediaToSBC(remoteSdp, localSdp) {
    assert(this.dlg && this.dlg.connected && this.ep && typeof remoteSdp === 'string');
    const sdp = stripCodecs(this.logger, remoteSdp, localSdp) || remoteSdp;
    await this.dlg.modify(sdp, {
      headers: {
-        'X-Reason': releaseMediaEntirely ? 'release-media-entirely' : 'release-media'
+        'X-Reason': 'release-media'
      }
    });
-    try {
-      await this.ep.destroy();
-    } catch (err) {
-      this.logger.error({err}, 'SingleDialer:releaseMediaToSBC: Error destroying endpoint');
-    }
-    this.ep = null;
+    this.ep.destroy()
+      .then(() => this.ep = null)
+      .catch((err) => this.logger.error({err}, 'SingleDialer:releaseMediaToSBC: Error destroying endpoint'));
  }

-  async reAnchorMedia(currentMediaRoute = MediaPath.PartialMedia) {
+  async reAnchorMedia() {
    assert(this.dlg && this.dlg.connected && !this.ep);
-
-    this.logger.debug('SingleDialer:reAnchorMedia: re-anchoring media after partial media');
    this.ep = await this.ms.createEndpoint({remoteSdp: this.dlg.remote.sdp});
-    this._configMsEndpoint();
    await this.dlg.modify(this.ep.local.sdp, {
      headers: {
        'X-Reason': 'anchor-media'
      }
    });
-
-    if (currentMediaRoute === MediaPath.NoMedia) {
-      this.logger.debug('SingleDialer:reAnchorMedia: repoint endpoint after no media');
-      await this.ep.modify(this.dlg.remote.sdp);
-    }
  }

  _notifyCallStatusChange({callStatus, sipStatus, sipReason, duration}) {
@@ -531,12 +436,11 @@ class SingleDialer extends Emitter {
 }

 function placeOutdial({
-  logger, srf, ms, sbcAddress, target, opts, application, callInfo, accountInfo, rootSpan, startSpan, dialTask,
-  onHoldMusic
+  logger, srf, ms, sbcAddress, target, opts, application, callInfo, accountInfo, rootSpan, startSpan, dialTask
 }) {
  const myOpts = deepcopy(opts);
  const sd = new SingleDialer({
-    logger, sbcAddress, target, myOpts, application, callInfo, accountInfo, rootSpan, startSpan, dialTask, onHoldMusic
+    logger, sbcAddress, target, myOpts, application, callInfo, accountInfo, rootSpan, startSpan, dialTask
  });
  sd.exec(srf, ms, myOpts);
  return sd;
--- a/lib/utils/sbc-pinger.js
+++ b/lib/utils/sbc-pinger.js
@@ -46,24 +46,12 @@ module.exports = (logger) => {
            const {srf} = require('../..');
            srf.locals.publicIp = publicIp;
          })
-          .on(LifeCycleEvents.ScaleIn, async() => {
+          .on(LifeCycleEvents.ScaleIn, () => {
            logger.info('AWS scale-in notification: begin drying up calls');
            dryUpCalls = true;
            lifecycleEmitter.operationalState = LifeCycleEvents.ScaleIn;

            const {srf} = require('../..');
-            const {writeSystemAlerts} = srf.locals;
-            if (writeSystemAlerts) {
-              const {SystemState, FEATURE_SERVER} = require('./constants');
-              await writeSystemAlerts({
-                system_component: FEATURE_SERVER,
-                state : SystemState.GracefulShutdownInProgress,
-                fields : {
-                  detail: `feature-server with process_id ${process.pid} shutdown in progress`,
-                  host: srf.locals?.ipv4
-                }
-              });
-            }
            pingProxies(srf);

            // if we have zero calls, we can complete the scale-in right
--- a/lib/utils/sdp-utils.js
+++ b/lib/utils/sdp-utils.js
@@ -12,30 +12,6 @@ const mergeSdpMedia = (sdp1, sdp2) => {
  return sdpTransform.write(parsedSdp1);
 };

-const getCodecPlacement = (parsedSdp, codec) => parsedSdp?.media[0]?.rtp?.findIndex((e) => e.codec === codec);
-
-const isOpusFirst = (sdp) => {
-  return getCodecPlacement(sdpTransform.parse(sdp), 'opus') === 0;
-};
-
-const makeOpusFirst = (sdp) => {
-  const parsedSdp = sdpTransform.parse(sdp);
-  // Find the index of the OPUS codec
-  const opusIndex = getCodecPlacement(parsedSdp, 'opus');
-
-  // Move OPUS codec to the beginning
-  if (opusIndex > 0) {
-    const opusEntry = parsedSdp.media[0].rtp.splice(opusIndex, 1)[0];
-    parsedSdp.media[0].rtp.unshift(opusEntry);
-
-    // Also move the corresponding payload type in the "m" line
-    const opusPayloadType = parsedSdp.media[0].payloads.split(' ')[opusIndex];
-    const otherPayloadTypes = parsedSdp.media[0].payloads.split(' ').filter((pt) => pt != opusPayloadType);
-    parsedSdp.media[0].payloads = [opusPayloadType, ...otherPayloadTypes].join(' ');
-  }
-  return sdpTransform.write(parsedSdp);
-};
-
 const extractSdpMedia = (sdp) => {
  const parsedSdp1 = sdpTransform.parse(sdp);
  if (parsedSdp1.media.length > 1) {
@@ -52,7 +28,5 @@ const extractSdpMedia = (sdp) => {
 module.exports = {
  isOnhold,
  mergeSdpMedia,
-  extractSdpMedia,
-  isOpusFirst,
-  makeOpusFirst
+  extractSdpMedia
 };
--- a/lib/utils/siprec-utils.js
+++ b/lib/utils/siprec-utils.js
@@ -97,12 +97,8 @@ const parseSiprecPayload = (req, logger) => {
            obj[`${prefix}participantstreamassoc`].forEach((ps) => {
              const part = participants[ps.$.participant_id];
              if (part) {
-                if (ps.hasOwnProperty(`${prefix}send`)) {
-                  part.send = ps[`${prefix}send`][0];
-                }
-                if (ps.hasOwnProperty(`${prefix}recv`)) {
-                  part.recv = ps[`${prefix}recv`][0];
-                }
+                part.send = ps[`${prefix}send`][0];
+                part.recv = ps[`${prefix}recv`][0];
              }
            });
          }
@@ -113,9 +109,9 @@ const parseSiprecPayload = (req, logger) => {
          obj[`${prefix}stream`].forEach((s) => {
            const streamId = s.$.stream_id;
            let sender;
-            for (const v of Object.values(participants)) {
+            for (const [k, v] of Object.entries(participants)) {
              if (v.send === streamId) {
-                sender = v;
+                sender = k;
                break;
              }
            }
@@ -125,15 +121,9 @@ const parseSiprecPayload = (req, logger) => {

            sender.label = s[`${prefix}label`][0];

-            if (-1 !== ['1', 'a_leg', 'inbound', '10'].indexOf(sender.label)) {
-              opts.caller.aor = sender.aor;
+            if (-1 !== ['1', 'a_leg', 'inbound'].indexOf(sender.label)) {
+              opts.caller.aor = sender.aor ;
              if (sender.name) opts.caller.name = sender.name;
-              // Remap the sdp stream base on sender label
-              if (!opts.sdp1.includes(`a=label:${sender.label}`)) {
-                const tmp = opts.sdp1;
-                opts.sdp1 = opts.sdp2;
-                opts.sdp2 = tmp;
-              }
            }
            else {
              opts.callee.aor = sender.aor ;
--- a/lib/utils/transcription-utils.js
+++ b/lib/utils/transcription-utils.js
@@ -1,4 +1,16 @@
-const {TaskName} = require('./constants.json');
+const {
+  TaskName,
+  AzureTranscriptionEvents,
+  GoogleTranscriptionEvents,
+  AwsTranscriptionEvents,
+  NuanceTranscriptionEvents,
+  DeepgramTranscriptionEvents,
+  SonioxTranscriptionEvents,
+  NvidiaTranscriptionEvents,
+  CobaltTranscriptionEvents,
+  JambonzTranscriptionEvents
+} = require('./constants');
+
 const stickyVars = {
  google: [
    'GOOGLE_SPEECH_HINTS',
@@ -22,14 +34,12 @@ const stickyVars = {
    'AZURE_SERVICE_ENDPOINT',
    'AZURE_INITIAL_SPEECH_TIMEOUT_MS',
    'AZURE_USE_OUTPUT_FORMAT_DETAILED',
-    'AZURE_SPEECH_SEGMENTATION_SILENCE_TIMEOUT_MS'
  ],
  deepgram: [
    'DEEPGRAM_SPEECH_KEYWORDS',
    'DEEPGRAM_API_KEY',
    'DEEPGRAM_SPEECH_TIER',
    'DEEPGRAM_SPEECH_MODEL',
-    'DEEPGRAM_SPEECH_ENABLE_SMART_FORMAT',
    'DEEPGRAM_SPEECH_ENABLE_AUTOMATIC_PUNCTUATION',
    'DEEPGRAM_SPEECH_PROFANITY_FILTER',
    'DEEPGRAM_SPEECH_REDACT',
@@ -40,21 +50,13 @@ const stickyVars = {
    'DEEPGRAM_SPEECH_SEARCH',
    'DEEPGRAM_SPEECH_REPLACE',
    'DEEPGRAM_SPEECH_ENDPOINTING',
-    'DEEPGRAM_SPEECH_UTTERANCE_END_MS',
    'DEEPGRAM_SPEECH_VAD_TURNOFF',
-    'DEEPGRAM_SPEECH_TAG',
-    'DEEPGRAM_SPEECH_MODEL_VERSION'
+    'DEEPGRAM_SPEECH_TAG'
  ],
  aws: [
    'AWS_VOCABULARY_NAME',
    'AWS_VOCABULARY_FILTER_METHOD',
-    'AWS_VOCABULARY_FILTER_NAME',
-    'AWS_LANGUAGE_MODEL_NAME',
-    'AWS_ACCESS_KEY_ID',
-    'AWS_SECRET_ACCESS_KEY',
-    'AWS_REGION',
-    'AWS_SECURITY_TOKEN',
-    'AWS_PII_ENTITY_TYPES',
+    'AWS_VOCABULARY_FILTER_NAME'
  ],
  nuance: [
    'NUANCE_ACCESS_TOKEN',
@@ -99,141 +101,9 @@ const stickyVars = {
  soniox: [
    'SONIOX_PROFANITY_FILTER',
    'SONIOX_MODEL'
-  ],
-  assemblyai: [
-    'ASSEMBLYAI_API_KEY',
-    'ASSEMBLYAI_WORD_BOOST'
-  ],
-  speechmatics: [
-    'SPEECHMATICS_API_KEY',
-    'SPEECHMATICS_HOST',
-    'SPEECHMATICS_PATH',
-    'SPEECHMATICS_SPEECH_HINTS',
-    'SPEECHMATICS_TRANSLATION_LANGUAGES',
-    'SPEECHMATICS_TRANSLATION_PARTIALS'
  ]
 };

-/**
- * @see https://developers.deepgram.com/docs/models-languages-overview
- */
-const optimalDeepramModels = {
-  zh: ['base', 'base'],
-  'zh-CN':['base', 'base'],
-  'zh-TW': ['base', 'base'],
-  da: ['enhanced', 'enhanced'],
-  en: ['nova-2-phonecall', 'nova-2'],
-  'en-US': ['nova-2-phonecall', 'nova-2'],
-  'en-AU': ['nova-2', 'nova-2'],
-  'en-GB': ['nova-2', 'nova-2'],
-  'en-IN': ['nova-2', 'nova-2'],
-  'en-NZ': ['nova-2', 'nova-2'],
-  nl: ['nova-2', 'nova-2'],
-  fr: ['nova-2', 'nova-2'],
-  'fr-CA': ['nova-2', 'nova-2'],
-  de: ['nova-2', 'nova-2'],
-  hi: ['nova-2', 'nova-2'],
-  'hi-Latn': ['nova-2', 'nova-2'],
-  id: ['base', 'base'],
-  it: ['nova-2', 'nova-2'],
-  ja: ['enhanced', 'enhanced'],
-  ko: ['nova-2', 'nova-2'],
-  no: ['nova-2', 'nova-2'],
-  pl: ['nova-2', 'nova-2'],
-  pt: ['nova-2', 'nova-2'],
-  'pt-BR': ['nova-2', 'nova-2'],
-  'pt-PT': ['nova-2', 'nova-2'],
-  ru: ['nova-2', 'nova-2'],
-  es: ['nova-2', 'nova-2'],
-  'es-419': ['nova-2', 'nova-2'],
-  'es-LATAM': ['enhanced', 'enhanced'],
-  sv: ['nova-2', 'nova-2'],
-  ta: ['enhanced', 'enhanced'],
-  taq: ['enhanced', 'enhanced'],
-  tr: ['nova-2', 'nova-2'],
-  uk: ['nova-2', 'nova-2']
-};
-const selectDefaultDeepgramModel = (task, language) => {
-  if (language in optimalDeepramModels) {
-    const [gather, transcribe] = optimalDeepramModels[language];
-    return task.name === TaskName.Gather ? gather : transcribe;
-  }
-  return 'base';
-};
-
-const optimalGoogleModels = {
-  'v1' : {
-    'en-IN':['telephony', 'telephony'],
-    'es-DO':['default', 'default'],
-    'es-MX':['default', 'default'],
-    'en-AU':['telephony', 'telephony'],
-    'en-GB':['telephony', 'telephony'],
-    'en-NZ':['telephony', 'telephony']
-  },
-  'v2' : {
-    'en-IN':['telephony', 'long']
-  }
-};
-const selectDefaultGoogleModel = (task, language, version) => {
-  const useV2 = version === 'v2';
-  if (language in optimalGoogleModels[version]) {
-    const [gather, transcribe] = optimalGoogleModels[version][language];
-    return task.name === TaskName.Gather ? gather : transcribe;
-  }
-  return task.name === TaskName.Gather ?
-    (useV2 ? 'telephony_short' : 'command_and_search') :
-    (useV2 ? 'long' : 'latest_long');
-};
-const consolidateTranscripts = (bufferedTranscripts, channel, language, vendor) => {
-  if (bufferedTranscripts.length === 1) {
-    bufferedTranscripts[0].is_final = true;
-    return bufferedTranscripts[0];
-  }
-  let totalConfidence = 0;
-  const finalTranscript = bufferedTranscripts.reduce((acc, evt) => {
-    totalConfidence += evt.alternatives[0].confidence;
-
-    let newTranscript = evt.alternatives[0].transcript;
-
-    // If new transcript consists only of digits, spaces, and a trailing comma or period
-    if (newTranscript.match(/^[\d\s]+[,.]?$/)) {
-      newTranscript = newTranscript.replace(/\s/g, '');  // Remove all spaces
-      if (newTranscript.endsWith(',')) {
-        newTranscript = newTranscript.slice(0, -1);  // Remove the trailing comma
-      } else if (newTranscript.endsWith('.')) {
-        newTranscript = newTranscript.slice(0, -1);  // Remove the trailing period
-      }
-    }
-
-    const lastChar = acc.alternatives[0].transcript.slice(-1);
-    const firstChar = newTranscript.charAt(0);
-
-    if (lastChar.match(/\d/) && firstChar.match(/\d/)) {
-      acc.alternatives[0].transcript += newTranscript;
-    } else {
-      acc.alternatives[0].transcript += ` ${newTranscript}`;
-    }
-
-    return acc;
-  }, {
-    language_code: language,
-    channel_tag: channel,
-    is_final: true,
-    alternatives: [{
-      transcript: ''
-    }]
-  });
-  finalTranscript.alternatives[0].confidence = bufferedTranscripts.length === 1 ?
-    bufferedTranscripts[0].alternatives[0].confidence :
-    totalConfidence / bufferedTranscripts.length;
-  finalTranscript.alternatives[0].transcript = finalTranscript.alternatives[0].transcript.trim();
-  finalTranscript.vendor = {
-    name: vendor,
-    evt: bufferedTranscripts
-  };
-  return finalTranscript;
-};
-
 const compileSonioxTranscripts = (finalWordChunks, channel, language) => {
  const words = finalWordChunks.flat();
  const transcript = words.reduce((acc, word) => {
@@ -291,7 +161,7 @@ const normalizeSoniox = (evt, channel, language) => {
  };
 };

-const normalizeDeepgram = (evt, channel, language, shortUtterance) => {
+const normalizeDeepgram = (evt, channel, language) => {
  const copy = JSON.parse(JSON.stringify(evt));
  const alternatives = (evt.channel?.alternatives || [])
    .map((alt) => ({
@@ -299,15 +169,11 @@ const normalizeDeepgram = (evt, channel, language, shortUtterance) => {
      transcript: alt.transcript,
    }));

-  /**
-   * note difference between is_final and speech_final in Deepgram:
-   * https://developers.deepgram.com/docs/understand-endpointing-interim-results
-   */
  return {
    language_code: language,
    channel_tag: channel,
-    is_final: shortUtterance ? evt.is_final : evt.speech_final,
-    alternatives: alternatives.length ? [alternatives[0]] : [],
+    is_final: evt.is_final,
+    alternatives: [alternatives[0]],
    vendor: {
      name: 'deepgram',
      evt: copy
@@ -353,10 +219,8 @@ const normalizeIbm = (evt, channel, language) => {

 const normalizeGoogle = (evt, channel, language) => {
  const copy = JSON.parse(JSON.stringify(evt));
-  const language_code = evt.language_code || language;
-
  return {
-    language_code: language_code,
+    language_code: language,
    channel_tag: channel,
    is_final: evt.is_final,
    alternatives: [evt.alternatives[0]],
@@ -415,34 +279,19 @@ const normalizeNuance = (evt, channel, language) => {
  };
 };

-const normalizeVerbio = (evt, channel, language) => {
-  const copy = JSON.parse(JSON.stringify(evt));
-  return {
-    language_code: language,
-    channel_tag: channel,
-    is_final: evt.is_final,
-    alternatives: evt.alternatives,
-    vendor: {
-      name: 'verbio',
-      evt: copy
-    }
-  };
-};
-
-const normalizeMicrosoft = (evt, channel, language, punctuation = true) => {
+const normalizeMicrosoft = (evt, channel, language) => {
  const copy = JSON.parse(JSON.stringify(evt));
  const nbest = evt.NBest;
  const language_code = evt.PrimaryLanguage?.Language || language;
  const alternatives = nbest ? nbest.map((n) => {
    return {
      confidence: n.Confidence,
-      // remove all puntuation if needed
-      transcript: punctuation ? n.Display : n.Display.replace(/\p{P}/gu, '')
+      transcript: n.Display
    };
  }) :
    [
      {
-        transcript: punctuation ? evt.DisplayText || evt.Text : (evt.DisplayText || evt.Text).replace(/\p{P}/gu, '')
+        transcript: evt.DisplayText || evt.Text
      }
    ];

@@ -459,97 +308,29 @@ const normalizeMicrosoft = (evt, channel, language, punctuation = true) => {
 };

 const normalizeAws = (evt, channel, language) => {
-  const copy = JSON.parse(JSON.stringify(evt));
-  const isGrpcPayload = Array.isArray(evt);
-  if (isGrpcPayload) {
-    /* legacy grpc api */
-    return {
-      language_code: language,
-      channel_tag: channel,
-      is_final: evt[0].is_final,
-      alternatives: evt[0].alternatives,
-      vendor: {
-        name: 'aws',
-        evt: copy
-      }
-    };
-  }
-  else {
-    /* websocket api */
-    const alternatives = evt.Transcript?.Results[0]?.Alternatives.map((alt) => {
-      const items = alt.Items.filter((item) => item.Type === 'pronunciation' && 'Confidence' in item);
-      const confidence = items.reduce((acc, item) => acc + item.Confidence, 0) / items.length;
-      return {
-        transcript: alt.Transcript,
-        confidence
-      };
-    });
-    return {
-      language_code: language,
-      channel_tag: channel,
-      is_final: evt.Transcript?.Results[0].IsPartial === false,
-      alternatives,
-      vendor: {
-        name: 'aws',
-        evt: copy
-      }
-    };
-  }
-};
-
-const normalizeAssemblyAi = (evt, channel, language) => {
  const copy = JSON.parse(JSON.stringify(evt));
  return {
    language_code: language,
    channel_tag: channel,
-    is_final: evt.message_type === 'FinalTranscript',
-    alternatives: [
-      {
-        confidence: evt.confidence,
-        transcript: evt.text,
-      }
-    ],
+    is_final: evt[0].is_final,
+    alternatives: evt[0].alternatives,
    vendor: {
-      name: 'assemblyai',
+      name: 'aws',
      evt: copy
    }
  };
 };

-const normalizeSpeechmatics = (evt, channel, language) => {
-  const copy = JSON.parse(JSON.stringify(evt));
-  const is_final = evt.message === 'AddTranscript';
-  const words = evt.results?.filter((r) => r.type === 'word') || [];
-  const confidence = words.length > 0 ?
-    words.reduce((acc, word) => acc + word.alternatives[0].confidence, 0) / words.length :
-    0;
-
-  const alternative = {
-    confidence,
-    transcript: evt.metadata?.transcript
-  };
-  const obj = {
-    language_code: language,
-    channel_tag: channel,
-    is_final,
-    alternatives: [alternative],
-    vendor: {
-      name: 'speechmatics',
-      evt: copy
-    }
-  };
-  return obj;
-};

 module.exports = (logger) => {
-  const normalizeTranscription = (evt, vendor, channel, language, shortUtterance, punctuation) => {
+  const normalizeTranscription = (evt, vendor, channel, language) => {

    //logger.debug({ evt, vendor, channel, language }, 'normalizeTranscription');
    switch (vendor) {
      case 'deepgram':
-        return normalizeDeepgram(evt, channel, language, shortUtterance);
+        return normalizeDeepgram(evt, channel, language);
      case 'microsoft':
-        return normalizeMicrosoft(evt, channel, language, punctuation);
+        return normalizeMicrosoft(evt, channel, language);
      case 'google':
        return normalizeGoogle(evt, channel, language);
      case 'aws':
@@ -564,12 +345,6 @@ module.exports = (logger) => {
        return normalizeSoniox(evt, channel, language);
      case 'cobalt':
        return normalizeCobalt(evt, channel, language);
-      case 'assemblyai':
-        return normalizeAssemblyAi(evt, channel, language, shortUtterance);
-      case 'verbio':
-        return normalizeVerbio(evt, channel, language);
-      case 'speechmatics':
-        return normalizeSpeechmatics(evt, channel, language);
      default:
        if (vendor.startsWith('custom:')) {
          return normalizeCustom(evt, channel, language, vendor);
@@ -579,15 +354,22 @@ module.exports = (logger) => {
    }
  };

-  const setChannelVarsForStt = (task, sttCredentials, language, rOpts = {}) => {
+  const setChannelVarsForStt = (task, sttCredentials, rOpts = {}) => {
    let opts = {};
+    const {enable, voiceMs = 0, mode = -1} = rOpts.vad || {};
+    const vad = {enable, voiceMs, mode};
    const vendor = rOpts.vendor;

+    /* voice activity detection works across vendors */
+    opts = {
+      ...opts,
+      ...(vad.enable && {START_RECOGNIZING_ON_VAD: 1}),
+      ...(vad.enable && vad.voiceMs && {RECOGNIZER_VAD_VOICE_MS: vad.voiceMs}),
+      ...(vad.enable && typeof vad.mode === 'number' && {RECOGNIZER_VAD_MODE: vad.mode}),
+    };
+
    if ('google' === vendor) {
-      const useV2 = rOpts.googleOptions?.serviceVersion === 'v2';
-      const version = useV2 ? 'v2' : 'v1';
-      let {model} = rOpts;
-      model = model || selectDefaultGoogleModel(task, language, version);
+      const model = task.name === TaskName.Gather ? 'command_and_search' : 'latest_long';
      opts = {
        ...opts,
        ...(sttCredentials && {GOOGLE_APPLICATION_CREDENTIALS: JSON.stringify(sttCredentials.credentials)}),
@@ -612,72 +394,36 @@ module.exports = (logger) => {
        ...(rOpts.hints?.length > 0 && typeof rOpts.hints[0] === 'object' &&
          {GOOGLE_SPEECH_HINTS: JSON.stringify(rOpts.hints)}),
        ...(typeof rOpts.hintsBoost === 'number' && {GOOGLE_SPEECH_HINTS_BOOST: rOpts.hintsBoost}),
-        // When altLanguages is emptylist, we have to send value to freeswitch to clear the previous settings
-        ...(rOpts.altLanguages &&
+        ...(rOpts.altLanguages?.length > 0 &&
          {GOOGLE_SPEECH_ALTERNATIVE_LANGUAGE_CODES: [...new Set(rOpts.altLanguages)].join(',')}),
        ...(rOpts.interactionType &&
          {GOOGLE_SPEECH_METADATA_INTERACTION_TYPE: rOpts.interactionType}),
        ...{GOOGLE_SPEECH_MODEL: rOpts.model || model},
        ...(rOpts.naicsCode > 0 && {GOOGLE_SPEECH_METADATA_INDUSTRY_NAICS_CODE: rOpts.naicsCode}),
        GOOGLE_SPEECH_METADATA_RECORDING_DEVICE_TYPE: 'phone_line',
-        ...(useV2 && {
-          GOOGLE_SPEECH_RECOGNIZER_PARENT: `projects/${sttCredentials.credentials.project_id}/locations/global`,
-          GOOGLE_SPEECH_CLOUD_SERVICES_VERSION: 'v2',
-          ...(rOpts.googleOptions?.speechStartTimeoutMs && {
-            GOOGLE_SPEECH_START_TIMEOUT_MS: rOpts.googleOptions.speechStartTimeoutMs
-          }),
-          ...(rOpts.googleOptions?.speechEndTimeoutMs && {
-            GOOGLE_SPEECH_END_TIMEOUT_MS: rOpts.googleOptions.speechEndTimeoutMs
-          }),
-          ...(rOpts.googleOptions?.transcriptNormalization && {
-            GOOGLE_SPEECH_TRANSCRIPTION_NORMALIZATION: JSON.stringify(rOpts.googleOptions.transcriptNormalization)
-          }),
-          ...(rOpts.googleOptions?.enableVoiceActivityEvents && {
-            GOOGLE_SPEECH_ENABLE_VOICE_ACTIVITY_EVENTS: rOpts.googleOptions.enableVoiceActivityEvents
-          }),
-          ...(rOpts.sgoogleOptions?.recognizerId) && {GOOGLE_SPEECH_RECOGNIZER_ID: rOpts.googleOptions.recognizerId},
-          ...(rOpts.googleOptions?.enableVoiceActivityEvents && {
-            GOOGLE_SPEECH_ENABLE_VOICE_ACTIVITY_EVENTS: rOpts.googleOptions.enableVoiceActivityEvents
-          }),
-        }),
      };
    }
    else if (['aws', 'polly'].includes(vendor)) {
-      const {awsOptions = {}} = rOpts;
-      const vocabularyName = awsOptions.vocabularyName || rOpts.vocabularyName;
-      const vocabularyFilterName = awsOptions.vocabularyFilterName || rOpts.vocabularyFilterName;
-      const filterMethod = awsOptions.vocabularyFilterMethod || rOpts.filterMethod;
      opts = {
        ...opts,
-        ...(vocabularyName && {AWS_VOCABULARY_NAME: vocabularyName}),
-        ...(vocabularyFilterName && {AWS_VOCABULARY_FILTER_NAME: vocabularyFilterName}),
-        ...(filterMethod && {AWS_VOCABULARY_FILTER_METHOD: filterMethod}),
+        ...(rOpts.vocabularyName && {AWS_VOCABULARY_NAME: rOpts.vocabularyName}),
+        ...(rOpts.vocabularyFilterName && {AWS_VOCABULARY_FILTER_NAME: rOpts.vocabularyFilterName}),
+        ...(rOpts.filterMethod && {AWS_VOCABULARY_FILTER_METHOD: rOpts.filterMethod}),
        ...(sttCredentials && {
          AWS_ACCESS_KEY_ID: sttCredentials.accessKeyId,
          AWS_SECRET_ACCESS_KEY: sttCredentials.secretAccessKey,
-          AWS_REGION: sttCredentials.region,
-          AWS_SECURITY_TOKEN: sttCredentials.securityToken
+          AWS_REGION: sttCredentials.region
        }),
-        ...(awsOptions.accessKey && {AWS_ACCESS_KEY_ID: awsOptions.accessKey}),
-        ...(awsOptions.secretKey && {AWS_SECRET_ACCESS_KEY: awsOptions.secretKey}),
-        ...(awsOptions.region && {AWS_REGION: awsOptions.region}),
-        ...(awsOptions.securityToken && {AWS_SECURITY_TOKEN: awsOptions.securityToken}),
-        ...(awsOptions.languageModelName && {AWS_LANGUAGE_MODEL_NAME: awsOptions.languageModelName}),
-        ...(awsOptions.piiEntityTypes?.length && {AWS_PII_ENTITY_TYPES: awsOptions.piiEntityTypes.join(',')}),
-        ...(awsOptions.piiIdentifyEntities && {AWS_PII_IDENTIFY_ENTITIES: true}),
-        ...(awsOptions.languageModelName && {AWS_LANGUAGE_MODEL_NAME: awsOptions.languageModelName}),
      };
    }
    else if ('microsoft' === vendor) {
-      const {azureOptions = {}} = rOpts;
      opts = {
        ...opts,
-        ...(rOpts.hints?.length > 0 && typeof rOpts.hints[0] === 'string' &&
+        ...(rOpts.hints && rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'string' &&
          {AZURE_SPEECH_HINTS: rOpts.hints.map((h) => h.trim()).join(',')}),
-        ...(rOpts.hints?.length > 0 && typeof rOpts.hints[0] === 'object' &&
+        ...(rOpts.hints && rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'object' &&
          {AZURE_SPEECH_HINTS: rOpts.hints.map((h) => h.phrase).join(',')}),
-        // When altLanguages is emptylist, we have to send value to freeswitch to clear the previous settings
-        ...(rOpts.altLanguages &&
+        ...(rOpts.altLanguages && rOpts.altLanguages.length > 0 &&
          {AZURE_SPEECH_ALTERNATIVE_LANGUAGE_CODES: [...new Set(rOpts.altLanguages)].join(',')}),
        ...(rOpts.requestSnr && {AZURE_REQUEST_SNR: 1}),
        ...(rOpts.profanityOption && {AZURE_PROFANITY_OPTION: rOpts.profanityOption}),
@@ -689,21 +435,12 @@ module.exports = (logger) => {
        ...(rOpts.requestSnr && {AZURE_REQUEST_SNR: 1}),
        ...(rOpts.audioLogging && {AZURE_AUDIO_LOGGING: 1}),
        ...{AZURE_USE_OUTPUT_FORMAT_DETAILED: 1},
-        ...(azureOptions.speechSegmentationSilenceTimeoutMs &&
-          {AZURE_SPEECH_SEGMENTATION_SILENCE_TIMEOUT_MS: azureOptions.speechSegmentationSilenceTimeoutMs}),
-        ...(azureOptions.languageIdMode &&
-          {AZURE_LANGUAGE_ID_MODE: azureOptions.languageIdMode}),
-        ...(azureOptions.postProcessing &&
-          {AZURE_POST_PROCESSING_OPTION: azureOptions.postProcessing}),
        ...(sttCredentials && {
          ...(sttCredentials.api_key && {AZURE_SUBSCRIPTION_KEY: sttCredentials.api_key}),
          ...(sttCredentials.region && {AZURE_REGION: sttCredentials.region}),
        }),
        ...(sttCredentials.use_custom_stt && sttCredentials.custom_stt_endpoint &&
          {AZURE_SERVICE_ENDPOINT_ID: sttCredentials.custom_stt_endpoint}),
-        //azureSttEndpointId overrides sttCredentials.custom_stt_endpoint
-        ...(rOpts.azureSttEndpointId &&
-          {AZURE_SERVICE_ENDPOINT_ID: rOpts.azureSttEndpointId}),
      };
    }
    else if ('nuance' === vendor) {
@@ -755,28 +492,17 @@ module.exports = (logger) => {
      };
    }
    else if ('deepgram' === vendor) {
-      let {model} = rOpts;
      const {deepgramOptions = {}} = rOpts;
-      const deepgramUri = deepgramOptions.deepgramSttUri || sttCredentials.deepgram_stt_uri;
-      const useTls = deepgramOptions.deepgramSttUseTls || sttCredentials.deepgram_stt_use_tls;
-
-      /* default to a sensible model if not supplied */
-      if (!model) {
-        model = selectDefaultDeepgramModel(task, language);
-      }
      opts = {
        ...opts,
-        DEEPGRAM_SPEECH_MODEL: model,
-        ...(deepgramUri && {DEEPGRAM_URI: deepgramUri}),
-        ...(deepgramUri && useTls && {DEEPGRAM_USE_TLS: 1}),
        ...(sttCredentials.api_key) &&
          {DEEPGRAM_API_KEY: sttCredentials.api_key},
        ...(deepgramOptions.tier) &&
          {DEEPGRAM_SPEECH_TIER: deepgramOptions.tier},
+        ...(deepgramOptions.model) &&
+          {DEEPGRAM_SPEECH_MODEL: deepgramOptions.model},
        ...(deepgramOptions.punctuate) &&
          {DEEPGRAM_SPEECH_ENABLE_AUTOMATIC_PUNCTUATION: 1},
-        ...(deepgramOptions.smartFormatting) &&
-          {DEEPGRAM_SPEECH_ENABLE_SMART_FORMAT: 1},
        ...(deepgramOptions.profanityFilter) &&
          {DEEPGRAM_SPEECH_PROFANITY_FILTER: 1},
        ...(deepgramOptions.redact) &&
@@ -795,24 +521,18 @@ module.exports = (logger) => {
          {DEEPGRAM_SPEECH_SEARCH: deepgramOptions.search.join(',')},
        ...(deepgramOptions.replace) &&
          {DEEPGRAM_SPEECH_REPLACE: deepgramOptions.replace.join(',')},
-        ...(rOpts.hints && rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'string' &&
+        ...(rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'string' &&
          {DEEPGRAM_SPEECH_KEYWORDS: rOpts.hints.map((h) => h.trim()).join(',')}),
-        ...(rOpts.hints && rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'object' &&
+        ...(rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'object' &&
          {DEEPGRAM_SPEECH_KEYWORDS: rOpts.hints.map((h) => h.phrase).join(',')}),
        ...(deepgramOptions.keywords) &&
          {DEEPGRAM_SPEECH_KEYWORDS: deepgramOptions.keywords.join(',')},
        ...('endpointing' in deepgramOptions) &&
-          {DEEPGRAM_SPEECH_ENDPOINTING: deepgramOptions.endpointing === false ? 'false' : deepgramOptions.endpointing,
-            // default DEEPGRAM_SPEECH_UTTERANCE_END_MS is 1000, will be override by user settings later if there is.
-            DEEPGRAM_SPEECH_UTTERANCE_END_MS: 1000},
-        ...(deepgramOptions.utteranceEndMs) &&
-          {DEEPGRAM_SPEECH_UTTERANCE_END_MS: deepgramOptions.utteranceEndMs},
+          {DEEPGRAM_SPEECH_ENDPOINTING: deepgramOptions.endpointing},
        ...(deepgramOptions.vadTurnoff) &&
          {DEEPGRAM_SPEECH_VAD_TURNOFF: deepgramOptions.vadTurnoff},
        ...(deepgramOptions.tag) &&
-          {DEEPGRAM_SPEECH_TAG: deepgramOptions.tag},
-        ...(deepgramOptions.version) &&
-          {DEEPGRAM_SPEECH_MODEL_VERSION: deepgramOptions.version}
+          {DEEPGRAM_SPEECH_TAG: deepgramOptions.tag}
      };
    }
    else if ('soniox' === vendor) {
@@ -822,9 +542,9 @@ module.exports = (logger) => {
        ...opts,
        ...(sttCredentials.api_key) &&
          {SONIOX_API_KEY: sttCredentials.api_key},
-        ...(rOpts.hints?.length > 0 && typeof rOpts.hints[0] === 'string' &&
+        ...(rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'string' &&
          {SONIOX_HINTS: rOpts.hints.join(',')}),
-        ...(rOpts.hints?.length > 0 && typeof rOpts.hints[0] === 'object' &&
+        ...(rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'object' &&
          {SONIOX_HINTS: JSON.stringify(rOpts.hints)}),
        ...(typeof rOpts.hintsBoost === 'number' &&
          {SONIOX_HINTS_BOOST: rOpts.hintsBoost}),
@@ -882,9 +602,9 @@ module.exports = (logger) => {
        ...(rOpts.diarization && rOpts.diarizationMaxSpeakers > 0 &&
          {NVIDIA_DIARIZATION_SPEAKER_COUNT: rOpts.diarizationMaxSpeakers}),
        ...(rOpts.separateRecognitionPerChannel && {NVIDIA_SEPARATE_RECOGNITION_PER_CHANNEL: 1}),
-        ...(rOpts.hints?.length > 0 && typeof rOpts.hints[0] === 'string' &&
+        ...(rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'string' &&
          {NVIDIA_HINTS: rOpts.hints.join(',')}),
-        ...(rOpts.hints?.length > 0 && typeof rOpts.hints[0] === 'object' &&
+        ...(rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'object' &&
          {NVIDIA_HINTS: JSON.stringify(rOpts.hints)}),
        ...(typeof rOpts.hintsBoost === 'number' &&
          {NVIDIA_HINTS_BOOST: rOpts.hintsBoost}),
@@ -905,76 +625,29 @@ module.exports = (logger) => {
          {COBALT_SPEECH_HINTS: rOpts.hints.join(',')}),
        ...(rOpts.hints?.length > 0 && typeof rOpts.hints[0] === 'object' &&
          {COBALT_SPEECH_HINTS: JSON.stringify(rOpts.hints)}),
-        ...(rOpts.hints?.length > 0 &&
-          {COBALT_CONTEXT_TOKEN: cobaltOptions.contextToken || 'unk:default'}),
+        ...(rOpts.hints?.length > 0 && {COBALT_CONTEXT_TOKEN: cobaltOptions.contextToken || 'unk:default'}),
        ...(cobaltOptions.metadata && {COBALT_METADATA: cobaltOptions.metadata}),
        ...(cobaltOptions.enableConfusionNetwork && {COBALT_ENABLE_CONFUSION_NETWORK: 1}),
        ...(cobaltOptions.compiledContextData && {COBALT_COMPILED_CONTEXT_DATA: cobaltOptions.compiledContextData}),
      };
    }
-    else if ('assemblyai' === vendor) {
-      opts = {
-        ...opts,
-        ...(sttCredentials.api_key) &&
-          {ASSEMBLYAI_API_KEY: sttCredentials.api_key},
-        ...(rOpts.hints?.length > 0 &&
-          {ASSEMBLYAI_WORD_BOOST: JSON.stringify(rOpts.hints)})
-      };
-    }
-    else if ('verbio' === vendor) {
-      const {verbioOptions = {}} = rOpts;
-      opts = {
-        ...opts,
-        ...(sttCredentials.access_token && { VERBIO_ACCESS_TOKEN: sttCredentials.access_token}),
-        ...(sttCredentials.engine_version && {VERBIO_ENGINE_VERSION: sttCredentials.engine_version}),
-        ...(language && {VERBIO_LANGUAGE: language}),
-        ...(verbioOptions.enable_formatting && {VERBIO_ENABLE_FORMATTING: verbioOptions.enable_formatting}),
-        ...(verbioOptions.enable_diarization && {VERBIO_ENABLE_DIARIZATION: verbioOptions.enable_diarization}),
-        ...(verbioOptions.topic && {VERBIO_TOPIC: verbioOptions.topic}),
-        ...(verbioOptions.inline_grammar && {VERBIO_INLINE_GRAMMAR: verbioOptions.inline_grammar}),
-        ...(verbioOptions.grammar_uri && {VERBIO_GRAMMAR_URI: verbioOptions.grammar_uri}),
-        ...(verbioOptions.label && {VERBIO_LABEL: verbioOptions.label}),
-        ...(verbioOptions.recognition_timeout && {VERBIO_RECOGNITION_TIMEOUT: verbioOptions.recognition_timeout}),
-        ...(verbioOptions.speech_complete_timeout &&
-          {VERBIO_SPEECH_COMPLETE_TIMEOUT: verbioOptions.speech_complete_timeout}),
-        ...(verbioOptions.speech_incomplete_timeout &&
-          {VERBIO_SPEECH_INCOMPLETE_TIMEOUT: verbioOptions.speech_incomplete_timeout}),
-      };
-    }
-    else if ('speechmatics' === vendor) {
-      const {speechmaticsOptions = {}} = rOpts;
-      opts = {
-        ...opts,
-        ...(sttCredentials.api_key) && {SPEECHMATICS_API_KEY: sttCredentials.api_key},
-        ...(sttCredentials.speechmatics_stt_uri) && {SPEECHMATICS_HOST: sttCredentials.speechmatics_stt_uri},
-        ...(rOpts.hints?.length > 0 && {SPEECHMATICS_SPEECH_HINTS: rOpts.hints.join(',')}),
-        ...(speechmaticsOptions.translation_config &&
-          {
-            SPEECHMATICS_TRANSLATION_LANGUAGES: speechmaticsOptions.translation_config.target_languages.join(','),
-            SPEECHMATICS_TRANSLATION_PARTIALS: speechmaticsOptions.translation_config.enable_partials ? 1 : 0
-          }
-        ),
-      };
-    }
    else if (vendor.startsWith('custom:')) {
-      let {options = {}} = rOpts.customOptions || {};
-      const {sampleRate} = rOpts.customOptions || {};
+      let {options = {}} = rOpts;
      const {auth_token, custom_stt_url} = sttCredentials;
      options = {
        ...options,
-        ...(rOpts.hints?.length > 0 && typeof rOpts.hints[0] === 'string' &&
+        ...(rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'string' &&
        {hints: rOpts.hints}),
-        ...(rOpts.hints?.length > 0 && typeof rOpts.hints[0] === 'object' &&
+        ...(rOpts.hints.length > 0 && typeof rOpts.hints[0] === 'object' &&
        {hints: JSON.stringify(rOpts.hints)}),
-        ...(typeof rOpts.hintsBoost === 'number' && {hintsBoost: rOpts.hintsBoost}),
-        ...(task.cs?.callSid && {callSid: task.cs.callSid})
+        ...(typeof rOpts.hintsBoost === 'number' && {hintsBoost: rOpts.hintsBoost})
      };
+
      opts = {
        ...opts,
-        ...(auth_token && {JAMBONZ_STT_API_KEY: auth_token}),
+        JAMBONZ_STT_API_KEY: auth_token,
        JAMBONZ_STT_URL: custom_stt_url,
        ...(Object.keys(options).length > 0 && {JAMBONZ_STT_OPTIONS: JSON.stringify(options)}),
-        ...(sampleRate && {JAMBONZ_STT_SAMPLING: sampleRate})
      };
    }

@@ -984,6 +657,44 @@ module.exports = (logger) => {
    return opts;
  };

+  const removeSpeechListeners = (ep) => {
+    ep.removeCustomEventListener(GoogleTranscriptionEvents.Transcription);
+    ep.removeCustomEventListener(GoogleTranscriptionEvents.EndOfUtterance);
+    ep.removeCustomEventListener(GoogleTranscriptionEvents.VadDetected);
+
+    ep.removeCustomEventListener(AwsTranscriptionEvents.Transcription);
+    ep.removeCustomEventListener(AwsTranscriptionEvents.VadDetected);
+
+    ep.removeCustomEventListener(AzureTranscriptionEvents.Transcription);
+    ep.removeCustomEventListener(AzureTranscriptionEvents.NoSpeechDetected);
+    ep.removeCustomEventListener(AzureTranscriptionEvents.VadDetected);
+
+    ep.removeCustomEventListener(NuanceTranscriptionEvents.Transcription);
+    ep.removeCustomEventListener(NuanceTranscriptionEvents.TranscriptionComplete);
+    ep.removeCustomEventListener(NuanceTranscriptionEvents.StartOfSpeech);
+    ep.removeCustomEventListener(NuanceTranscriptionEvents.VadDetected);
+
+    ep.removeCustomEventListener(DeepgramTranscriptionEvents.Transcription);
+    ep.removeCustomEventListener(DeepgramTranscriptionEvents.Connect);
+    ep.removeCustomEventListener(DeepgramTranscriptionEvents.ConnectFailure);
+
+    ep.removeCustomEventListener(SonioxTranscriptionEvents.Transcription);
+
+    ep.removeCustomEventListener(CobaltTranscriptionEvents.Transcription);
+    ep.removeCustomEventListener(CobaltTranscriptionEvents.CompileContext);
+
+    ep.removeCustomEventListener(NvidiaTranscriptionEvents.Transcription);
+    ep.removeCustomEventListener(NvidiaTranscriptionEvents.TranscriptionComplete);
+    ep.removeCustomEventListener(NvidiaTranscriptionEvents.StartOfSpeech);
+    ep.removeCustomEventListener(NvidiaTranscriptionEvents.VadDetected);
+
+    ep.removeCustomEventListener(JambonzTranscriptionEvents.Transcription);
+    ep.removeCustomEventListener(JambonzTranscriptionEvents.Connect);
+    ep.removeCustomEventListener(JambonzTranscriptionEvents.ConnectFailure);
+
+    ep.removeCustomEventListener(JambonzTranscriptionEvents.Error);
+  };
+
  const setSpeechCredentialsAtRuntime = (recognizer) => {
    if (!recognizer) return;
    if (recognizer.vendor === 'nuance') {
@@ -1022,8 +733,8 @@ module.exports = (logger) => {
  return {
    normalizeTranscription,
    setChannelVarsForStt,
+    removeSpeechListeners,
    setSpeechCredentialsAtRuntime,
-    compileSonioxTranscripts,
-    consolidateTranscripts,
+    compileSonioxTranscripts
  };
 };
--- a/lib/utils/tts-streaming-buffer.js
+++ b/lib/utils/tts-streaming-buffer.js
@@ -1,325 +0,0 @@
-const Emitter = require('events');
-const assert = require('assert');
-const {
-  TtsStreamingEvents,
-  TtsStreamingConnectionStatus
-} = require('../utils/constants');
-const MAX_CHUNK_SIZE = 1800;
-const HIGH_WATER_BUFFER_SIZE = 1000;
-const LOW_WATER_BUFFER_SIZE = 200;
-const TIMEOUT_RETRY_MSECS = 3000;
-
-class TtsStreamingBuffer extends Emitter {
-  constructor(cs) {
-    super();
-    this.cs = cs;
-    this.logger = cs.logger;
-
-    this.tokens = '';
-    this.eventHandlers = [];
-    this._isFull = false;
-    this._connectionStatus = TtsStreamingConnectionStatus.NotConnected;
-    this._flushPending = false;
-    this.timer = null;
-  }
-
-  get isEmpty() {
-    return this.tokens.length === 0;
-  }
-
-  get isFull() {
-    return this._isFull;
-  }
-
-  get size() {
-    return this.tokens.length;
-  }
-
-  get ep() {
-    return this.cs?.ep;
-  }
-
-  async start() {
-    assert.ok(
-      this._connectionStatus === TtsStreamingConnectionStatus.NotConnected,
-      'TtsStreamingBuffer:start already started, or has failed');
-
-    this.vendor = this.cs.getTsStreamingVendor();
-    if (!this.vendor) {
-      this.logger.info('TtsStreamingBuffer:start No TTS streaming vendor configured');
-      throw new Error('No TTS streaming vendor configured');
-    }
-
-    this.logger.info(`TtsStreamingBuffer:start Connecting to TTS streaming with vendor ${this.vendor}`);
-
-    this._connectionStatus = TtsStreamingConnectionStatus.Connecting;
-    try {
-      if (this.eventHandlers.length === 0) this._initHandlers(this.ep);
-      await  this._api(this.ep, [this.ep.uuid, 'connect']);
-    } catch (err) {
-      this.logger.info({err}, 'TtsStreamingBuffer:start Error connecting to TTS streaming');
-      this._connectionStatus = TtsStreamingConnectionStatus.Failed;
-    }
-  }
-
-  stop() {
-    clearTimeout(this.timer);
-    this.removeCustomEventListeners();
-    if (this.ep) {
-      this._api(this.ep, [this.ep.uuid, 'close'])
-        .catch((err) => this.logger.info({err}, 'TtsStreamingBuffer:kill Error closing TTS streaming'));
-    }
-    this.timer = null;
-    this.tokens = '';
-    this._connectionStatus = TtsStreamingConnectionStatus.NotConnected;
-  }
-
-  /**
-   * Add tokens to the buffer and start feeding them to the endpoint if necessary.
-   */
-  async bufferTokens(tokens) {
-
-    if (this._connectionStatus === TtsStreamingConnectionStatus.Failed) {
-      this.logger.info('TtsStreamingBuffer:bufferTokens TTS streaming connection failed, rejecting request');
-      return {status: 'failed', reason: `connection to ${this.vendor} failed`};
-    }
-
-    const displayedTokens = tokens.length <= 40 ? tokens : tokens.substring(0, 40);
-    const totalLength = tokens.length;
-
-    /* if we crossed the high water mark, reject the request */
-    if (this.tokens.length + totalLength > HIGH_WATER_BUFFER_SIZE) {
-      this.logger.info(
-        `TtsStreamingBuffer throttling: buffer is full, rejecting request to buffer ${totalLength} tokens`);
-
-      if (!this._isFull) {
-        this._isFull = true;
-        this.emit(TtsStreamingEvents.Pause);
-      }
-      return {status: 'failed', reason: 'full'};
-    }
-
-    this.logger.debug(
-      `TtsStreamingBuffer:bufferTokens "${displayedTokens}" (length: ${totalLength}), starting? ${this.isEmpty}`
-    );
-    this.tokens += (tokens || '');
-
-    await this._feedTokens();
-
-    return {status: 'ok'};
-  }
-
-  flush() {
-    this.logger.debug('TtsStreamingBuffer:flush');
-    if (this._connectionStatus === TtsStreamingConnectionStatus.Connecting) {
-      this.logger.debug('TtsStreamingBuffer:flush TTS stream is not quite ready - wait for connect');
-      this._flushPending = true;
-      return;
-    }
-    else if (this._connectionStatus === TtsStreamingConnectionStatus.Connected) {
-
-      if (this.size === 0) {
-        this._doFlush();
-      }
-      else {
-        /* we have tokens queued, so flush after they have been sent */
-        this._pendingFlush = true;
-      }
-    }
-  }
-
-  clear() {
-    this.logger.debug('TtsStreamingBuffer:clear');
-
-    if (this._connectionStatus !== TtsStreamingConnectionStatus.Connected) return;
-    clearTimeout(this.timer);
-    this._api(this.ep, [this.ep.uuid, 'clear'])
-      .catch((err) => this.logger.info({err}, 'TtsStreamingBuffer:clear Error clearing TTS streaming'));
-    this.tokens = '';
-    this.timer = null;
-    this._isFull = false;
-  }
-
-  /**
-   * Send tokens to the TTS engine in sentence chunks for best playout
-   */
-  async _feedTokens(handlingTimeout = false) {
-    this.logger.debug({tokens: this.tokens}, '_feedTokens');
-
-    try {
-
-      /* are we in a state where we can feed tokens to the TTS? */
-      if (!this.cs.isTtsStreamOpen || !this.ep || !this.tokens) {
-        this.logger.debug('TTS stream is not open or no tokens to send');
-        return this.tokens?.length || 0;
-      }
-
-      if (this._connectionStatus === TtsStreamingConnectionStatus.NotConnected ||
-        this._connectionStatus === TtsStreamingConnectionStatus.Failed) {
-        this.logger.debug('TtsStreamingBuffer:_feedTokens TTS stream is not connected');
-        return;
-      }
-
-      if (this._connectionStatus === TtsStreamingConnectionStatus.Connecting) {
-        this.logger.debug('TtsStreamingBuffer:_feedTokens TTS stream is not ready, waiting for connect');
-        return;
-      }
-
-      /* must send at least one sentence */
-      const limit = Math.min(MAX_CHUNK_SIZE, this.tokens.length);
-      let chunkEnd = findSentenceBoundary(this.tokens, limit);
-
-      if (chunkEnd <= 0) {
-        if (handlingTimeout) {
-          /* on a timeout we've left some tokens sitting around, so be more aggressive now in sending them */
-          chunkEnd = findWordBoundary(this.tokens, limit);
-          if (chunkEnd <= 0) {
-            this.logger.debug('TtsStreamingBuffer:_feedTokens: no word boundary found');
-            this._setTimerIfNeeded();
-            return;
-          }
-        }
-        else {
-          /* if we just received tokens, we wont send unless we have at least a full sentence */
-          this.logger.debug('TtsStreamingBuffer:_feedTokens: no sentence boundary found');
-          this._setTimerIfNeeded();
-          return;
-        }
-      }
-
-      const chunk = this.tokens.slice(0, chunkEnd);
-      this.tokens = this.tokens.slice(chunkEnd);
-
-      /* freeswitch looks for sequence of 2 newlines to determine end of message, so insert a space */
-      const modifiedChunk = chunk.replace(/\n\n/g, '\n \n');
-      await this._api(this.ep, [this.ep.uuid, 'send', modifiedChunk]);
-      this.logger.debug(`TtsStreamingBuffer:_feedTokens: sent ${chunk.length}, remaining: ${this.tokens.length}`);
-
-      if (this._pendingFlush) {
-        this._doFlush();
-        this._pendingFlush = false;
-      }
-
-      if (this.isFull && this.tokens.length <= LOW_WATER_BUFFER_SIZE) {
-        this.logger.info('TtsStreamingBuffer throttling: TTS streaming buffer is no longer full - resuming');
-        this._isFull = false;
-        this.emit(TtsStreamingEvents.Resume);
-      }
-    } catch (err) {
-      this.logger.info({err}, 'TtsStreamingBuffer:_feedTokens Error sending TTS chunk');
-      this.tokens = '';
-    }
-
-    return;
-  }
-
-  async _api(ep, args) {
-    const apiCmd = `uuid_${this.vendor}_tts_streaming`;
-    const res = await ep.api(apiCmd, `^^|${args.join('|')}`);
-    if (!res.body?.startsWith('+OK')) {
-      this.logger.info({args}, `Error calling ${apiCmd}: ${res.body}`);
-      throw new Error(`Error calling ${apiCmd}: ${res.body}`);
-    }
-  }
-
-  _onConnectFailure(vendor) {
-    this.logger.info(`streaming tts connection failed to ${vendor}`);
-    this._connectionStatus = TtsStreamingConnectionStatus.Failed;
-    this.tokens = '';
-    this.emit(TtsStreamingEvents.ConnectFailure, {vendor});
-  }
-
-  _doFlush() {
-    this._api(this.ep, [this.ep.uuid, 'flush'])
-      .catch((err) => this.logger.info({err},
-        `TtsStreamingBuffer:_doFlush Error flushing TTS streaming: ${JSON.stringify(err)}`));
-  }
-
-  async _onConnect(vendor) {
-    this.logger.info(`streaming tts connection made to ${vendor}`);
-    this._connectionStatus = TtsStreamingConnectionStatus.Connected;
-    if (this.tokens.length > 0) {
-      await this._feedTokens();
-    }
-    if (this._flushPending) {
-      this.flush();
-      this._flushPending = false;
-    }
-  }
-
-  _setTimerIfNeeded() {
-    if (this.tokens.length > 0 && !this.timer) {
-      this.timer = setTimeout(this._onTimeout.bind(this), TIMEOUT_RETRY_MSECS);
-    }
-  }
-
-  _onTimeout() {
-    this.logger.info('TtsStreamingBuffer:_onTimeout');
-    this.timer = null;
-    this._feedTokens(true);
-  }
-
-  _onTtsEmpty(vendor) {
-    this.emit(TtsStreamingEvents.Empty, {vendor});
-  }
-
-  addCustomEventListener(ep, event, handler) {
-    this.eventHandlers.push({ep, event, handler});
-    ep.addCustomEventListener(event, handler);
-  }
-
-  removeCustomEventListeners() {
-    this.eventHandlers.forEach((h) => h.ep.removeCustomEventListener(h.event, h.handler));
-  }
-
-  _initHandlers(ep) {
-    [
-      // DH: add other vendors here as modules are added
-      'deepgram',
-      'cartesia',
-      'elevenlabs'
-    ].forEach((vendor) => {
-      const eventClassName = `${vendor.charAt(0).toUpperCase() + vendor.slice(1)}TtsStreamingEvents`;
-      const eventClass = require('../utils/constants')[eventClassName];
-      if (!eventClass) throw new Error(`Event class for vendor ${vendor} not found`);
-
-      this.addCustomEventListener(ep, eventClass.Connect, this._onConnect.bind(this, vendor));
-      this.addCustomEventListener(ep, eventClass.ConnectFailure, this._onConnectFailure.bind(this, vendor));
-      this.addCustomEventListener(ep, eventClass.Empty, this._onTtsEmpty.bind(this, vendor));
-    });
-  }
-}
-
-const findSentenceBoundary = (text, limit) => {
-  // Match traditional sentence boundaries or double newlines
-  const sentenceEndRegex = /[.!?](?=\s|$)|\n\n/g;
-  let lastSentenceBoundary = -1;
-  let match;
-
-  while ((match = sentenceEndRegex.exec(text)) && match.index < limit) {
-    const precedingText = text.slice(0, match.index).trim(); // Extract text before the match and trim whitespace
-    if (precedingText.length > 0) { // Check if there's actual content
-      if (
-        match[0] === '\n\n' || // It's a double newline
-        (match.index === 0 || !/\d$/.test(text[match.index - 1])) // Standard punctuation rules
-      ) {
-        lastSentenceBoundary = match.index + (match[0] === '\n\n' ? 2 : 1); // Include the boundary
-      }
-    }
-  }
-
-  return lastSentenceBoundary;
-};
-
-const findWordBoundary = (text, limit) => {
-  const wordBoundaryRegex = /\s+/g;
-  let lastWordBoundary = -1;
-  let match;
-
-  while ((match = wordBoundaryRegex.exec(text)) && match.index < limit) {
-    lastWordBoundary = match.index;
-  }
-  return lastWordBoundary;
-};
-
-module.exports = TtsStreamingBuffer;
--- a/lib/utils/ws-requestor.js
+++ b/lib/utils/ws-requestor.js
@@ -9,23 +9,8 @@ const {
  JAMBONES_WS_PING_INTERVAL_MS,
  MAX_RECONNECTS,
  JAMBONES_WS_HANDSHAKE_TIMEOUT_MS,
-  JAMBONES_WS_MAX_PAYLOAD,
-  HTTP_USER_AGENT_HEADER
+  JAMBONES_WS_MAX_PAYLOAD
 } = require('../config');
-const MTYPE_WANTS_ACK = [
-  'call:status',
-  'verb:status',
-  'jambonz:error',
-  'llm:event',
-  'llm:tool-call',
-  'tts:streaming-event',
-  'tts:tokens-result',
-];
-const MTYPE_NO_DATA = [
-  'llm:tool-output',
-  'tts:flush',
-  'tts:clear'
-];

 class WsRequestor extends BaseRequestor {
  constructor(logger, account_sid, hook, secret) {
@@ -58,7 +43,7 @@ class WsRequestor extends BaseRequestor {
  async request(type, hook, params, httpHeaders = {}) {
    assert(HookMsgTypes.includes(type));
    const url = hook.url || hook;
-    const wantsAck = !MTYPE_WANTS_ACK.includes(type);
+    const wantsAck = !['call:status', 'verb:status', 'jambonz:error'].includes(type);

    if (this.maliciousClient) {
      this.logger.info({url: this.url}, 'WsRequestor:request - discarding msg to malicious client');
@@ -70,12 +55,6 @@ class WsRequestor extends BaseRequestor {
    }

    if (type === 'session:new') this.call_sid = params.callSid;
-    if (type === 'session:reconnect') {
-      this._reconnectPromise = new Promise((resolve, reject) => {
-        this._reconnectResolve = resolve;
-        this._reconnectReject = reject;
-      });
-    }

    /* if we have an absolute url, and it is http then do a standard webhook */
    if (this._isAbsoluteUrl(url) && url.startsWith('http')) {
@@ -91,23 +70,20 @@ class WsRequestor extends BaseRequestor {
    }

    /* connect if necessary */
-    const queueMsg = () => {
-      this.logger.debug(
-        `WsRequestor:request(${this.id}) - queueing ${type} message since we are connecting`);
-      if (wantsAck) {
-        const p = new Promise((resolve, reject) => {
-          this.queuedMsg.push({type, hook, params, httpHeaders, promise: {resolve, reject}});
-        });
-        return p;
-      }
-      else {
-        this.queuedMsg.push({type, hook, params, httpHeaders});
-      }
-      return;
-    };
    if (!this.ws) {
      if (this.connectInProgress) {
-        return queueMsg();
+        this.logger.debug(
+          `WsRequestor:request(${this.id}) - queueing ${type} message since we are connecting`);
+        if (wantsAck) {
+          const p = new Promise((resolve, reject) => {
+            this.queuedMsg.push({type, hook, params, httpHeaders, promise: {resolve, reject}});
+          });
+          return p;
+        }
+        else {
+          this.queuedMsg.push({type, hook, params, httpHeaders});
+        }
+        return;
      }
      this.connectInProgress = true;
      this.logger.debug(`WsRequestor:request(${this.id}) - connecting since we do not have a connection for ${type}`);
@@ -125,10 +101,6 @@ class WsRequestor extends BaseRequestor {
        return Promise.reject(err);
      }
    }
-    // If jambonz wait for ack from reconnect, queue the msg until reconnect is acked
-    if (type !== 'session:reconnect' && this._reconnectPromise) {
-      return queueMsg();
-    }
    assert(this.ws);

    /* prepare and send message */
@@ -146,7 +118,7 @@ class WsRequestor extends BaseRequestor {
      type,
      msgid,
      call_sid: this.call_sid,
-      hook: ['verb:hook', 'session:redirect', 'llm:event', 'llm:tool-call'].includes(type) ? url : undefined,
+      hook: type === 'verb:hook' ? url : undefined,
      data: {...payload},
      ...b3
    };
@@ -166,18 +138,6 @@ class WsRequestor extends BaseRequestor {
      }
    };

-    const rejectQueuedMsgs = (err) => {
-      if (this.queuedMsg.length > 0) {
-        for (const {promise} of this.queuedMsg) {
-          this.logger.debug(`WsRequestor:request - preparing queued ${type} for rejectQueuedMsgs`);
-          if (promise) {
-            promise.reject(err);
-          }
-        }
-        this.queuedMsg.length = 0;
-      }
-    };
-
    //this.logger.debug({obj}, `websocket: sending (${url})`);

    /* special case: reconnecting before we received ack to session:new */
@@ -218,37 +178,16 @@ class WsRequestor extends BaseRequestor {
          this.logger.debug({response}, `WsRequestor:request ${url} succeeded in ${rtt}ms`);
          this.stats.histogram('app.hook.ws_response_time', rtt, ['hook_type:app']);
          resolve(response);
-          if (this._reconnectResolve) {
-            this._reconnectResolve();
-          }
        },
        failure: (err) => {
-          if (this._reconnectReject) {
-            this._reconnectReject(err);
-          }
          clearTimeout(timer);
          reject(err);
        }
      });

      /* send the message */
-      this.ws.send(JSON.stringify(obj), async() => {
+      this.ws.send(JSON.stringify(obj), () => {
        this.logger.debug({obj}, `WsRequestor:request websocket: sent (${url})`);
-        // If session:reconnect is waiting for ack, hold here until ack to send queuedMsgs
-        if (this._reconnectPromise) {
-          try {
-            await this._reconnectPromise;
-          } catch (err) {
-            // bad thing happened to session:recconnect
-            rejectQueuedMsgs(err);
-            this.emit('reconnect-error');
-            return;
-          } finally {
-            this._reconnectPromise = null;
-            this._reconnectResolve = null;
-            this._reconnectReject = null;
-          }
-        }
        sendQueuedMsgs();
      });
    });
@@ -289,9 +228,6 @@ class WsRequestor extends BaseRequestor {
        maxRedirects: 2,
        handshakeTimeout,
        maxPayload: JAMBONES_WS_MAX_PAYLOAD ? parseInt(JAMBONES_WS_MAX_PAYLOAD) : 24 * 1024,
-        headers: {
-          ...(HTTP_USER_AGENT_HEADER && {'user-agent' : HTTP_USER_AGENT_HEADER})
-        }
      };
      if (this.username && this.password) opts = {...opts, auth: `${this.username}:${this.password}`};

@@ -386,9 +322,7 @@ class WsRequestor extends BaseRequestor {
          'WsRequestor:_onSocketClosed time to reconnect');
        if (!this.ws && !this.connectInProgress) {
          this.connectInProgress = true;
-          return this._connect()
-            .catch((err) => this.logger.error('WsRequestor:_onSocketClosed There is error while reconnect', err))
-            .finally(() => this.connectInProgress = false);
+          this._connect().catch((err) => this.connectInProgress = false);
        }
      }, this.backoffMs);
      this.backoffMs = this.backoffMs < 2000 ? this.backoffMs * 2 : (this.backoffMs + 2000);
@@ -406,10 +340,7 @@ class WsRequestor extends BaseRequestor {
    /* messages must be JSON format */
    try {
      const obj = JSON.parse(content);
-      this.logger.debug({obj}, 'WsRequestor:_onMessage - received message');
-      //const {type, msgid, command, call_sid = this.call_sid, queueCommand = false, data} = obj;
-      const {type, msgid, command, queueCommand = false, tool_call_id, data} = obj;
-      const call_sid = obj.callSid || this.call_sid;
+      const {type, msgid, command, call_sid = this.call_sid, queueCommand = false, data} = obj;

      //this.logger.debug({obj}, 'WsRequestor:request websocket: received');
      assert.ok(type, 'type property not supplied');
@@ -422,8 +353,8 @@ class WsRequestor extends BaseRequestor {

        case 'command':
          assert.ok(command, 'command property not supplied');
-          assert.ok(data || MTYPE_NO_DATA.includes(command), 'data property not supplied');
-          this._recvCommand(msgid, command, call_sid, queueCommand, tool_call_id, data);
+          assert.ok(data, 'data property not supplied');
+          this._recvCommand(msgid, command, call_sid, queueCommand, data);
          break;

        default:
@@ -447,10 +378,10 @@ class WsRequestor extends BaseRequestor {
    success && success(data);
  }

-  _recvCommand(msgid, command, call_sid, queueCommand, tool_call_id, data) {
+  _recvCommand(msgid, command, call_sid, queueCommand, data) {
    // TODO: validate command
    this.logger.debug({msgid, command, call_sid, queueCommand, data}, 'received command');
-    this.emit('command', {msgid, command, call_sid, queueCommand, tool_call_id, data});
+    this.emit('command', {msgid, command, call_sid, queueCommand, data});
  }
 }

--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -1,9 +1,9 @@
 {
  "name": "jambonz-feature-server",
-  "version": "0.9.2",
+  "version": "0.8.4",
  "main": "app.js",
  "engines": {
-    "node": ">= 18.x"
+    "node": ">= 10.16.0"
  },
  "keywords": [
    "sip",
@@ -25,56 +25,57 @@
    "jslint:fix": "eslint app.js tracer.js lib --fix"
  },
  "dependencies": {
-    "@aws-sdk/client-auto-scaling": "^3.549.0",
-    "@aws-sdk/client-sns": "^3.549.0",
-    "@jambonz/db-helpers": "^0.9.6",
+    "@aws-sdk/client-auto-scaling": "^3.360.0",
+    "@aws-sdk/client-sns": "^3.360.0",
+    "@jambonz/db-helpers": "^0.9.1",
    "@jambonz/http-health-check": "^0.0.1",
-    "@jambonz/mw-registrar": "^0.2.7",
-    "@jambonz/realtimedb-helpers": "^0.8.8",
-    "@jambonz/speech-utils": "^0.2.1",
-    "@jambonz/stats-collector": "^0.1.10",
-    "@jambonz/verb-specifications": "^0.0.91",
-    "@jambonz/time-series": "^0.2.13",
-    "@opentelemetry/api": "^1.8.0",
-    "@opentelemetry/exporter-jaeger": "^1.23.0",
-    "@opentelemetry/exporter-trace-otlp-http": "^0.50.0",
-    "@opentelemetry/exporter-zipkin": "^1.23.0",
-    "@opentelemetry/instrumentation": "^0.50.0",
-    "@opentelemetry/resources": "^1.23.0",
-    "@opentelemetry/sdk-trace-base": "^1.23.0",
-    "@opentelemetry/sdk-trace-node": "^1.23.0",
-    "@opentelemetry/semantic-conventions": "^1.23.0",
+    "@jambonz/mw-registrar": "^0.2.4",
+    "@jambonz/realtimedb-helpers": "^0.8.6",
+    "@jambonz/speech-utils": "^0.0.22",
+    "@jambonz/stats-collector": "^0.1.9",
+    "@jambonz/time-series": "^0.2.8",
+    "@jambonz/verb-specifications": "^0.0.37",
+    "@opentelemetry/api": "^1.4.0",
+    "@opentelemetry/exporter-jaeger": "^1.9.0",
+    "@opentelemetry/exporter-trace-otlp-http": "^0.35.0",
+    "@opentelemetry/exporter-zipkin": "^1.9.0",
+    "@opentelemetry/instrumentation": "^0.35.0",
+    "@opentelemetry/resources": "^1.9.0",
+    "@opentelemetry/sdk-trace-base": "^1.9.0",
+    "@opentelemetry/sdk-trace-node": "^1.9.0",
+    "@opentelemetry/semantic-conventions": "^1.9.0",
    "bent": "^7.3.12",
    "debug": "^4.3.4",
    "deepcopy": "^2.1.0",
-    "drachtio-fsmrf": "^3.0.46",
-    "drachtio-srf": "^4.5.35",
-    "express": "^4.19.2",
+    "drachtio-fsmrf": "^3.0.27",
+    "drachtio-srf": "^4.5.29",
+    "express": "^4.18.2",
    "express-validator": "^7.0.1",
-    "moment": "^2.30.1",
-    "parse-url": "^9.2.0",
-    "pino": "^8.20.0",
+    "ip": "^1.1.8",
+    "moment": "^2.29.4",
+    "parse-url": "^8.1.0",
+    "pino": "^8.8.0",
    "polly-ssml-split": "^0.1.0",
    "proxyquire": "^2.1.3",
-    "sdp-transform": "^2.14.2",
-    "short-uuid": "^5.1.0",
-    "sinon": "^17.0.1",
+    "sdp-transform": "^2.14.1",
+    "short-uuid": "^4.2.2",
+    "sinon": "^15.0.1",
    "to-snake-case": "^1.0.0",
-    "undici": "^6.20.0",
+    "undici": "^5.26.2",
    "uuid-random": "^1.3.2",
    "verify-aws-sns-signature": "^0.1.0",
-    "ws": "^8.18.0",
+    "ws": "^8.9.0",
    "xml2js": "^0.6.2"
  },
  "devDependencies": {
    "clear-module": "^4.1.2",
-    "eslint": "7.32.0",
-    "eslint-plugin-promise": "^6.1.1",
+    "eslint": "^7.32.0",
+    "eslint-plugin-promise": "^4.3.1",
    "nyc": "^15.1.0",
-    "tape": "^5.7.5"
+    "tape": "^5.6.1"
  },
  "optionalDependencies": {
-    "bufferutil": "^4.0.8",
-    "utf-8-validate": "^6.0.3"
+    "bufferutil": "^4.0.6",
+    "utf-8-validate": "^5.0.8"
  }
 }
--- a/test/create-call-test.js
+++ b/test/create-call-test.js
@@ -99,8 +99,6 @@ test('test create-call call-hook basic authentication', async(t) => {
    let obj = await getJSON(`http:127.0.0.1:3100/lastRequest/${from}`)
    t.ok(obj.headers.Authorization = 'Basic dXNlcm5hbWU6cGFzc3dvcmQ=',
      'create-call: call-hook contains basic authentication header');
-    t.ok(obj.headers['user-agent'] = 'jambonz',
-    'create-call: call-hook contains user-agent header');
    disconnect();
  } catch (err) {
    console.log(`error received: ${err}`);
@@ -222,62 +220,3 @@ test('test create-call app_json', async(t) => {
    t.error(err);
  }
 });
-
-test('test create-call timeLimit', async(t) => {
-  clearModule.all();
-  const {srf, disconnect} = require('../app');
-
-  try {
-    await connect(srf);
-
-
-    // GIVEN
-    let from = 'create-call-app-json';
-    let account_sid = 'bb845d4b-83a9-4cde-a6e9-50f3743bab3f';
-
-    // Give UAS app time to come up
-    const p = sippUac('uas.xml', '172.38.0.10', from);
-    await waitFor(1000);
-
-    const startTime = Date.now();
-
-    const app_json = `[
-      {
-        "verb": "pause",
-        "length": 7
-      }
-    ]`;
-
-    const post = bent('http://127.0.0.1:3000/', 'POST', 'json', 201);
-    post('v1/createCall', {
-      'account_sid':account_sid,
-      "call_hook": {
-        "url": "http://127.0.0.1:3100/",
-        "method": "POST",
-        "username": "username",
-        "password": "password"
-      },
-      app_json,
-      "from": from,
-      "to": {
-        "type": "phone",
-        "number": "15583084809"
-      },
-      "timeLimit": 1,
-      "speech_recognizer_vendor": "google",
-      "speech_recognizer_language": "en"
-    });
-
-    //THEN
-    await p;
-    const endTime = Date.now();
-
-    t.ok(endTime - startTime < 2000, 'create-call: timeLimit is respected');
-
-    disconnect();
-  } catch (err) {
-    console.log(`error received: ${err}`);
-    disconnect();
-    t.error(err);
-  }
-});
--- a/test/db/jambones-sql.sql
+++ b/test/db/jambones-sql.sql
@@ -1,5 +1,4 @@
 /* SQLEditor (MySQL (2))*/
-
 SET FOREIGN_KEY_CHECKS=0;

 DROP TABLE IF EXISTS account_static_ips;
@@ -54,8 +53,6 @@ DROP TABLE IF EXISTS signup_history;

 DROP TABLE IF EXISTS smpp_addresses;

-DROP TABLE IF EXISTS google_custom_voices;
-
 DROP TABLE IF EXISTS speech_credentials;

 DROP TABLE IF EXISTS system_information;
@@ -139,9 +136,6 @@ account_sid CHAR(36) NOT NULL,
 is_active BOOLEAN NOT NULL DEFAULT 1,
 username VARCHAR(64),
 password VARCHAR(1024),
-allow_direct_app_calling BOOLEAN NOT NULL DEFAULT 1,
-allow_direct_queue_calling BOOLEAN NOT NULL DEFAULT 1,
-allow_direct_user_calling BOOLEAN NOT NULL DEFAULT 1,
 PRIMARY KEY (client_sid)
 );

@@ -344,25 +338,11 @@ label VARCHAR(64),
 PRIMARY KEY (speech_credential_sid)
 );

-CREATE TABLE google_custom_voices
-(
-google_custom_voice_sid CHAR(36) NOT NULL UNIQUE ,
-speech_credential_sid CHAR(36) NOT NULL,
-model VARCHAR(512) NOT NULL,
-reported_usage ENUM('REPORTED_USAGE_UNSPECIFIED','REALTIME','OFFLINE') DEFAULT 'REALTIME',
-name VARCHAR(64) NOT NULL,
-voice_cloning_key MEDIUMTEXT,
-use_voice_cloning_key BOOLEAN DEFAULT false,
-PRIMARY KEY (google_custom_voice_sid)
-);
-
 CREATE TABLE system_information
 (
 domain_name VARCHAR(255),
 sip_domain_name VARCHAR(255),
-monitoring_domain_name VARCHAR(255),
-private_network_cidr VARCHAR(8192),
-log_level ENUM('info', 'debug') NOT NULL DEFAULT 'info'
+monitoring_domain_name VARCHAR(255)
 );

 CREATE TABLE users
@@ -457,14 +437,11 @@ CREATE TABLE sip_gateways
 sip_gateway_sid CHAR(36),
 ipv4 VARCHAR(128) NOT NULL COMMENT 'ip address or DNS name of the gateway.  For gateways providing inbound calling service, ip address is required.',
 netmask INTEGER NOT NULL DEFAULT 32,
-port INTEGER COMMENT 'sip signaling port',
+port INTEGER NOT NULL DEFAULT 5060 COMMENT 'sip signaling port',
 inbound BOOLEAN NOT NULL COMMENT 'if true, whitelist this IP to allow inbound calls from the gateway',
 outbound BOOLEAN NOT NULL COMMENT 'if true, include in least-cost routing when placing calls to the PSTN',
 voip_carrier_sid CHAR(36) NOT NULL,
 is_active BOOLEAN NOT NULL DEFAULT 1,
-send_options_ping BOOLEAN NOT NULL DEFAULT 0,
-use_sips_scheme BOOLEAN NOT NULL DEFAULT 0,
-pad_crypto BOOLEAN NOT NULL DEFAULT 0,
 protocol ENUM('udp','tcp','tls', 'tls/srtp') DEFAULT 'udp' COMMENT 'Outbound call protocol',
 PRIMARY KEY (sip_gateway_sid)
 ) COMMENT='A whitelisted sip gateway used for origination/termination';
@@ -501,19 +478,11 @@ messaging_hook_sid CHAR(36) COMMENT 'webhook to call for inbound SMS/MMS ',
 app_json TEXT,
 speech_synthesis_vendor VARCHAR(64) NOT NULL DEFAULT 'google',
 speech_synthesis_language VARCHAR(12) NOT NULL DEFAULT 'en-US',
-speech_synthesis_voice VARCHAR(256),
+speech_synthesis_voice VARCHAR(64),
 speech_synthesis_label VARCHAR(64),
 speech_recognizer_vendor VARCHAR(64) NOT NULL DEFAULT 'google',
 speech_recognizer_language VARCHAR(64) NOT NULL DEFAULT 'en-US',
 speech_recognizer_label VARCHAR(64),
-use_for_fallback_speech BOOLEAN DEFAULT false,
-fallback_speech_synthesis_vendor VARCHAR(64),
-fallback_speech_synthesis_language VARCHAR(12),
-fallback_speech_synthesis_voice VARCHAR(256),
-fallback_speech_synthesis_label VARCHAR(64),
-fallback_speech_recognizer_vendor VARCHAR(64),
-fallback_speech_recognizer_language VARCHAR(64),
-fallback_speech_recognizer_label VARCHAR(64),
 created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
 record_all_calls BOOLEAN NOT NULL DEFAULT false,
 PRIMARY KEY (application_sid)
@@ -556,7 +525,6 @@ siprec_hook_sid CHAR(36),
 record_all_calls BOOLEAN NOT NULL DEFAULT false,
 record_format VARCHAR(16) NOT NULL DEFAULT 'mp3',
 bucket_credential VARCHAR(8192) COMMENT 'credential used to authenticate with storage service',
-enable_debug_log BOOLEAN NOT NULL DEFAULT false,
 PRIMARY KEY (account_sid)
 ) COMMENT='An enterprise that uses the platform for comm services';

@@ -651,10 +619,6 @@ ALTER TABLE speech_credentials ADD FOREIGN KEY service_provider_sid_idxfk_5 (ser
 CREATE INDEX account_sid_idx ON speech_credentials (account_sid);
 ALTER TABLE speech_credentials ADD FOREIGN KEY account_sid_idxfk_8 (account_sid) REFERENCES accounts (account_sid);

-CREATE INDEX google_custom_voice_sid_idx ON google_custom_voices (google_custom_voice_sid);
-CREATE INDEX speech_credential_sid_idx ON google_custom_voices (speech_credential_sid);
-ALTER TABLE google_custom_voices ADD FOREIGN KEY speech_credential_sid_idxfk (speech_credential_sid) REFERENCES speech_credentials (speech_credential_sid) ON DELETE CASCADE;
-
 CREATE INDEX user_sid_idx ON users (user_sid);
 CREATE INDEX email_idx ON users (email);
 CREATE INDEX phone_idx ON users (phone);
@@ -740,5 +704,4 @@ ALTER TABLE accounts ADD FOREIGN KEY queue_event_hook_sid_idxfk (queue_event_hoo
 ALTER TABLE accounts ADD FOREIGN KEY device_calling_application_sid_idxfk (device_calling_application_sid) REFERENCES applications (application_sid);

 ALTER TABLE accounts ADD FOREIGN KEY siprec_hook_sid_idxfk (siprec_hook_sid) REFERENCES applications (application_sid);
-
-SET FOREIGN_KEY_CHECKS=1;
+SET FOREIGN_KEY_CHECKS=1;
--- a/test/docker-compose-testbed.yaml
+++ b/test/docker-compose-testbed.yaml
@@ -42,7 +42,7 @@ services:
        ipv4_address: 172.38.0.7

  drachtio:
-    image: drachtio/drachtio-server:0.8.26
+    image: drachtio/drachtio-server:0.8.22
    restart: always
    command: drachtio --contact "sip:*;transport=udp" --mtu 4096 --address 0.0.0.0 --port 9022
    ports:
@@ -57,7 +57,7 @@ services:
        condition: service_healthy

  freeswitch:
-    image: drachtio/drachtio-freeswitch-mrf:0.9.2-4
+    image: drachtio/drachtio-freeswitch-mrf:0.4.33
    restart: always
    command: freeswitch --rtp-range-start 20000 --rtp-range-end 20100
    environment:
--- a/test/hangup-test.js
+++ b/test/hangup-test.js
@@ -1,53 +0,0 @@
-const test = require('tape');
-const { sippUac } = require('./sipp')('test_fs');
-const clearModule = require('clear-module');
-const {provisionCallHook, provisionCustomHook} = require('./utils')
-const bent = require('bent');
-const getJSON = bent('json')
-
-process.on('unhandledRejection', (reason, p) => {
-  console.log('Unhandled Rejection at: Promise', p, 'reason:', reason);
-});
-
-function connect(connectable) {
-  return new Promise((resolve, reject) => {
-    connectable.on('connect', () => {
-      return resolve();
-    });
-  });
-}
-
-test('\'hangup\' custom headers', async(t) => {
-  clearModule.all();
-  const {srf, disconnect} = require('../app');
-
-  try {
-    await connect(srf);
-
-    // GIVEN
-    const verbs = [
-      {
-        verb: 'play',
-        url: 'https://example.com/example.mp3'
-      },
-      {
-        "verb": "hangup",
-        "headers": {
-          "X-Reason" : "maximum call duration exceeded"
-        }
-      }
-    ];
-
-    const from = 'hangup_custom_headers';
-    await provisionCallHook(from, verbs)
-
-    // THEN
-    await sippUac('uac-success-received-bye.xml', '172.38.0.10', from);
-    t.pass('play: succeeds when using single link');
-    disconnect();
-  } catch (err) {
-    console.log(`error received: ${err}`);
-    disconnect();
-    t.error(err);
-  }
-});
--- a/test/index.js
+++ b/test/index.js
@@ -16,8 +16,6 @@ require('./listen-tests');
 require('./config-test');
 require('./queue-test');
 require('./in-dialog-test');
-require('./hangup-test');
-require('./sdp-utils-test');
 require('./http-proxy-test');
 require('./remove-test-db');
 require('./docker_stop');
--- a/test/play-tests.js
+++ b/test/play-tests.js
@@ -188,7 +188,7 @@ test('\'play\' tests with seekOffset and actionHook', async(t) => {
    const seconds = parseInt(obj.body.playback_seconds);
    const milliseconds = parseInt(obj.body.playback_milliseconds);
    const lastOffsetPos = parseInt(obj.body.playback_last_offset_pos);
-    console.log({obj}, 'lastRequest');
+    //console.log({obj}, 'lastRequest');
    t.ok(obj.body.reason === "playCompleted", "play: actionHook success received");
    t.ok(seconds === 2, "playback_seconds: actionHook success received");
    t.ok(milliseconds === 2048, "playback_milliseconds: actionHook success received");
--- a/test/sdp-utils-test.js
+++ b/test/sdp-utils-test.js
@@ -1,26 +0,0 @@
-const test = require('tape');
-const {makeOpusFirst, isOpusFirst} = require('../lib/utils/sdp-utils');
-const sdpTransform = require('sdp-transform');
-
-test('test opus first', (t) => {
-    const sdp = 'v=0\r\no=- 3348584794228993675 2 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\na=group:BUNDLE 0\r\na=extmap-allow-mixed\r\na=msid-semantic: WMS caca8b77-5ae5-4e73-a4d5-de1fce930335\r\nm=audio 57088 UDP/TLS/RTP/SAVPF 111 63 9 0 8 13 110 126\r\nc=IN IP4 14.238.89.50\r\na=rtcp:9 IN IP4 0.0.0.0\r\na=candidate:1401281302 1 udp 2122260223 10.231.36.146 57088 typ host generation 0 network-id 1 network-cost 10\r\na=candidate:2173263513 1 udp 1686052607 14.238.89.50 57088 typ srflx raddr 10.231.36.146 rport 57088 generation 0 network-id 1 network-cost 10\r\na=ice-ufrag:k5nc\r\na=ice-pwd:J0qwMs6HrIcFNZbDG5m8Kqpk\r\na=ice-options:trickle\r\na=fingerprint:sha-256 66:DE:9A:76:CE:11:2D:65:C4:08:C7:87:B4:90:7E:F1:8D:07:B9:F4:FF:E3:81:D7:E7:7D:C6:56:47:01:6E:55\r\na=setup:actpass\r\na=mid:0\r\na=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\na=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\na=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\na=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid\r\na=sendrecv\r\na=msid:caca8b77-5ae5-4e73-a4d5-de1fce930335 52ad01f1-b1df-4b8e-a208-9201e98b6f7b\r\na=rtcp-mux\r\na=rtcp-fb:111 transport-cc\r\na=fmtp:111 minptime=10;useinbandfec=1\r\na=rtpmap:63 red/48000/2\r\na=fmtp:63 111/111\r\na=rtpmap:9 G722/8000\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:13 CN/8000\r\na=rtpmap:111 opus/48000/2\r\na=rtpmap:110 telephone-event/48000\r\na=rtpmap:126 telephone-event/8000\r\na=ssrc:3207459321 cname:4nyPJ6KXvseBUIhu\r\na=ssrc:3207459321 msid:caca8b77-5ae5-4e73-a4d5-de1fce930335 52ad01f1-b1df-4b8e-a208-9201e98b6f7b\r\n';
-    const opusSdp = makeOpusFirst(sdp);
-    const parsedSdp = sdpTransform.parse(opusSdp);
-    const opusIndex = parsedSdp.media[0].rtp.findIndex((entry) => entry.codec === 'opus');
-    t.ok(opusIndex === 0, 'succesffuly move opus to be first offer')
-    t.end();
-});
-
-
-test('test is opus first', (t) => {
-
-    const sdp = 'v=0\r\no=- 3348584794228993675 2 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\na=group:BUNDLE 0\r\na=extmap-allow-mixed\r\na=msid-semantic: WMS caca8b77-5ae5-4e73-a4d5-de1fce930335\r\nm=audio 57088 UDP/TLS/RTP/SAVPF 111 63 9 0 8 13 110 126\r\nc=IN IP4 14.238.89.50\r\na=rtcp:9 IN IP4 0.0.0.0\r\na=candidate:1401281302 1 udp 2122260223 10.231.36.146 57088 typ host generation 0 network-id 1 network-cost 10\r\na=candidate:2173263513 1 udp 1686052607 14.238.89.50 57088 typ srflx raddr 10.231.36.146 rport 57088 generation 0 network-id 1 network-cost 10\r\na=ice-ufrag:k5nc\r\na=ice-pwd:J0qwMs6HrIcFNZbDG5m8Kqpk\r\na=ice-options:trickle\r\na=fingerprint:sha-256 66:DE:9A:76:CE:11:2D:65:C4:08:C7:87:B4:90:7E:F1:8D:07:B9:F4:FF:E3:81:D7:E7:7D:C6:56:47:01:6E:55\r\na=setup:actpass\r\na=mid:0\r\na=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\na=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\na=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\na=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid\r\na=sendrecv\r\na=msid:caca8b77-5ae5-4e73-a4d5-de1fce930335 52ad01f1-b1df-4b8e-a208-9201e98b6f7b\r\na=rtcp-mux\r\na=rtpmap:111 opus/48000/2\r\na=rtcp-fb:111 transport-cc\r\na=fmtp:111 minptime=10;useinbandfec=1\r\na=rtpmap:63 red/48000/2\r\na=fmtp:63 111/111\r\na=rtpmap:9 G722/8000\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:13 CN/8000\r\na=rtpmap:110 telephone-event/48000\r\na=rtpmap:126 telephone-event/8000\r\na=ssrc:3207459321 cname:4nyPJ6KXvseBUIhu\r\na=ssrc:3207459321 msid:caca8b77-5ae5-4e73-a4d5-de1fce930335 52ad01f1-b1df-4b8e-a208-9201e98b6f7b\r\n';
-    t.ok(isOpusFirst(sdp), "opus is first offer");
-
-    const sdp2 = 'v=0\r\no=- 3348584794228993675 2 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\na=group:BUNDLE 0\r\na=extmap-allow-mixed\r\na=msid-semantic: WMS caca8b77-5ae5-4e73-a4d5-de1fce930335\r\nm=audio 57088 UDP/TLS/RTP/SAVPF 111 63 9 0 8 13 110 126\r\nc=IN IP4 14.238.89.50\r\na=rtcp:9 IN IP4 0.0.0.0\r\na=candidate:1401281302 1 udp 2122260223 10.231.36.146 57088 typ host generation 0 network-id 1 network-cost 10\r\na=candidate:2173263513 1 udp 1686052607 14.238.89.50 57088 typ srflx raddr 10.231.36.146 rport 57088 generation 0 network-id 1 network-cost 10\r\na=ice-ufrag:k5nc\r\na=ice-pwd:J0qwMs6HrIcFNZbDG5m8Kqpk\r\na=ice-options:trickle\r\na=fingerprint:sha-256 66:DE:9A:76:CE:11:2D:65:C4:08:C7:87:B4:90:7E:F1:8D:07:B9:F4:FF:E3:81:D7:E7:7D:C6:56:47:01:6E:55\r\na=setup:actpass\r\na=mid:0\r\na=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\na=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\na=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\na=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid\r\na=sendrecv\r\na=msid:caca8b77-5ae5-4e73-a4d5-de1fce930335 52ad01f1-b1df-4b8e-a208-9201e98b6f7b\r\na=rtcp-mux\r\na=rtcp-fb:111 transport-cc\r\na=fmtp:111 minptime=10;useinbandfec=1\r\na=rtpmap:63 red/48000/2\r\na=fmtp:63 111/111\r\na=rtpmap:9 G722/8000\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:13 CN/8000\r\na=rtpmap:111 opus/48000/2\r\na=rtpmap:110 telephone-event/48000\r\na=rtpmap:126 telephone-event/8000\r\na=ssrc:3207459321 cname:4nyPJ6KXvseBUIhu\r\na=ssrc:3207459321 msid:caca8b77-5ae5-4e73-a4d5-de1fce930335 52ad01f1-b1df-4b8e-a208-9201e98b6f7b\r\n';
-    t.ok(!isOpusFirst(sdp2), "opus is not first offer")
-
-    const sdp3 = 'v=0\r\no=xhoaluu2 1314 1504 IN IP4 192.168.1.4\r\ns=Talk\r\nc=IN IP4 192.168.1.4\r\nt=0 0\r\na=ice-pwd:397d063ea23fdc05164e3ee4\r\na=ice-ufrag:16c449a3\r\na=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics\r\na=group:BUNDLE as\r\na=record:off\r\nm=audio 56542 RTP/AVPF 0 8\r\nc=IN IP4 14.226.233.151\r\na=rtcp-mux\r\na=mid:as\r\na=extmap:1 urn:ietf:params:rtp-hdrext:sdes:mid\r\na=rtcp:63076 IN IP4 192.168.1.4\r\na=candidate:1 1 UDP 2130706303 192.168.1.4 56542 typ host\r\na=candidate:1 2 UDP 2130706302 192.168.1.4 63076 typ host\r\na=candidate:2 1 UDP 2130706431 2001:ee0:d744:dcf0:c1d3:d73f:7a93:dc9f 56542 typ host\r\na=candidate:2 2 UDP 2130706430 2001:ee0:d744:dcf0:c1d3:d73f:7a93:dc9f 63076 typ host\r\na=candidate:3 1 UDP 2130706431 2001:ee0:d744:dcf0:15:6be3:8e6b:b736 56542 typ host\r\na=candidate:3 2 UDP 2130706430 2001:ee0:d744:dcf0:15:6be3:8e6b:b736 63076 typ host\r\na=candidate:4 1 UDP 1694498687 14.226.233.151 56542 typ srflx raddr 192.168.1.4 rport 56542\r\na=rtcp-fb:* trr-int 1000\r\na=rtcp-fb:* ccm tmmbr';
-    t.ok(!isOpusFirst(sdp2), "opus is not first offer")
-    t.end();
-});
--- a/test/transcribe-tests.js
+++ b/test/transcribe-tests.js
@@ -52,7 +52,6 @@ test('\'transcribe\' test - google', async(t) => {
    // THEN
    await sippUac('uac-gather-account-creds-success.xml', '172.38.0.10', from);
    let obj = await getJSON(`http://127.0.0.1:3100/lastRequest/${from}_actionHook`);
-    //console.log(JSON.stringify(obj));
    t.ok(obj.body.speech.alternatives[0].transcript.toLowerCase().startsWith('i\'d like to speak to customer support'),
      'transcribe: succeeds when using google credentials');

@@ -90,7 +89,6 @@ test('\'transcribe\' test - microsoft', async(t) => {
    // THEN
    await sippUac('uac-gather-account-creds-success.xml', '172.38.0.10', from);
    let obj = await getJSON(`http://127.0.0.1:3100/lastRequest/${from}_actionHook`);
-    //console.log(JSON.stringify(obj));
    t.ok(obj.body.speech.alternatives[0].transcript.toLowerCase().startsWith('i\'d like to speak to customer support'),
      'transcribe: succeeds when using  microsoft credentials');

@@ -128,7 +126,6 @@ test('\'transcribe\' test - aws', async(t) => {
    // THEN
    await sippUac('uac-gather-account-creds-success.xml', '172.38.0.10', from);
    let obj = await getJSON(`http://127.0.0.1:3100/lastRequest/${from}_actionHook`);
-    //console.log(JSON.stringify(obj));
    t.ok(obj.body.speech.alternatives[0].transcript.toLowerCase().startsWith('i\'d like to speak to customer support'),
      'transcribe: succeeds when using aws credentials');

@@ -140,71 +137,6 @@ test('\'transcribe\' test - aws', async(t) => {
  }
 });

-
-test('\'transcribe\' test - deepgram config options', async(t) => {
-  if (!DEEPGRAM_API_KEY ) {
-    t.pass('skipping deepgram tests');
-    return t.end();
-  }
-  clearModule.all();
-  const {srf, disconnect} = require('../app');
-
-  try {
-    await connect(srf);
-    // GIVEN
-    let verbs = [
-      {
-        "verb": "config",
-        "recognizer": {
-          "vendor": "deepgram",
-          "language": "en-US",
-          "altLanguages": [
-            "en-US"
-          ],
-          "deepgramOptions": {
-            "model": "2-ea",
-            "tier": "nova",
-            "numerals": true,
-            "ner": true,
-            "vadTurnoff": 10,
-            "keywords": [
-              "CPT"
-            ]
-          }
-        }
-      },
-      {
-        "verb": "transcribe",
-        "transcriptionHook": "/transcriptionHook",
-        "recognizer": {
-          "vendor": "deepgram",
-          "altLanguages": [
-            "en-AU"
-          ],
-          "hints": ["customer support", "sales", "human resources", "HR"],
-          "deepgramOptions": {
-            "apiKey": DEEPGRAM_API_KEY,
-          }
-        }
-      }
-    ];
-    let from = "gather_success";
-    await provisionCallHook(from, verbs);
-    // THEN
-    await sippUac('uac-gather-account-creds-success.xml', '172.38.0.10', from);
-    let obj = await getJSON(`http://127.0.0.1:3100/lastRequest/${from}_actionHook`);
-    //console.log(JSON.stringify(obj));
-    t.ok(obj.body.speech.alternatives[0].transcript.toLowerCase().includes('like to speak to customer support'),
-      'transcribe: succeeds when using deepgram credentials');
-
-    disconnect();
-  } catch (err) {
-    console.log(`error received: ${err}`);
-    disconnect();
-    t.error(err);
-  }
-});
-
 test('\'transcribe\' test - deepgram', async(t) => {
  if (!DEEPGRAM_API_KEY ) {
    t.pass('skipping deepgram tests');
@@ -234,7 +166,6 @@ test('\'transcribe\' test - deepgram', async(t) => {
    // THEN
    await sippUac('uac-gather-account-creds-success.xml', '172.38.0.10', from);
    let obj = await getJSON(`http://127.0.0.1:3100/lastRequest/${from}_actionHook`);
-    //console.log(JSON.stringify(obj));
    t.ok(obj.body.speech.alternatives[0].transcript.toLowerCase().includes('like to speak to customer support'),
      'transcribe: succeeds when using deepgram credentials');

@@ -314,131 +245,9 @@ test('\'transcribe\' test - google with asrTimeout', async(t) => {
    // THEN
    await sippUac('uac-gather-account-creds-success.xml', '172.38.0.10', from);
    let obj = await getJSON(`http://127.0.0.1:3100/lastRequest/${from}_actionHook`);
-    //console.log(JSON.stringify(obj));
    t.ok(obj.body.speech.alternatives[0].transcript.toLowerCase().startsWith('i\'d like to speak to customer support'),
      'transcribe: succeeds when using google credentials');

-    disconnect();
-  } catch (err) {
-    console.log(`error received: ${err}`);
-    disconnect();
-    t.error(err);
-  }
-});
-
-test('\'transcribe\' test - deepgram config options altLanguages', async(t) => {
-  if (!DEEPGRAM_API_KEY ) {
-    t.pass('skipping deepgram tests');
-    return t.end();
-  }
-  clearModule.all();
-  const {srf, disconnect} = require('../app');
-
-  try {
-    await connect(srf);
-    // GIVEN
-    let verbs = [
-      {
-        "verb": "config",
-        "recognizer": {
-          "vendor": "deepgram",
-          "language": "en-US",
-          "altLanguages": [
-            "en-US"
-          ],
-          "deepgramOptions": {
-            "model": "nova-2",
-            "numerals": true,
-            "ner": true,
-            "vadTurnoff": 10,
-            "keywords": [
-              "CPT"
-            ]
-          }
-        }
-      },
-      {
-        "verb": "transcribe",
-        "transcriptionHook": "/transcriptionHook",
-        "recognizer": {
-          "vendor": "deepgram",
-          "hints": ["customer support", "sales", "human resources", "HR"],
-          "deepgramOptions": {
-            "apiKey": DEEPGRAM_API_KEY,
-          }
-        }
-      }
-    ];
-    let from = "gather_success_no_altLanguages";
-    await provisionCallHook(from, verbs);
-    // THEN
-    await sippUac('uac-gather-account-creds-success.xml', '172.38.0.10', from);
-    let obj = await getJSON(`http://127.0.0.1:3100/lastRequest/${from}_actionHook`);
-    //console.log(JSON.stringify(obj));
-    t.ok(obj.body.speech.alternatives[0].transcript.toLowerCase().includes('like to speak to customer support'),
-      'transcribe: succeeds when using deepgram credentials');
-
-    disconnect();
-  } catch (err) {
-    console.log(`error received: ${err}`);
-    disconnect();
-    t.error(err);
-  }
-});
-
-test('\'transcribe\' test - deepgram config options altLanguages', async(t) => {
-  if (!DEEPGRAM_API_KEY ) {
-    t.pass('skipping deepgram tests');
-    return t.end();
-  }
-  clearModule.all();
-  const {srf, disconnect} = require('../app');
-
-  try {
-    await connect(srf);
-    // GIVEN
-    let verbs = [
-      {
-        "verb": "config",
-        "recognizer": {
-          "vendor": "deepgram",
-          "language": "en-US",
-          "altLanguages": [
-            "en-US"
-          ],
-          "deepgramOptions": {
-            "model": "nova-2",
-            "numerals": true,
-            "ner": true,
-            "vadTurnoff": 10,
-            "keywords": [
-              "CPT"
-            ]
-          }
-        }
-      },
-      {
-        "verb": "transcribe",
-        "transcriptionHook": "/transcriptionHook",
-        "recognizer": {
-          "vendor": "deepgram",
-          "hints": ["customer support", "sales", "human resources", "HR"],
-          "altLanguages": [],
-          "deepgramOptions": {
-            "apiKey": DEEPGRAM_API_KEY,
-          }
-        }
-      }
-    ];
-    let from = "gather_success_has_altLanguages";
-    await provisionCallHook(from, verbs);
-    // THEN
-    await sippUac('uac-gather-account-creds-success.xml', '172.38.0.10', from);
-    let obj = await getJSON(`http://127.0.0.1:3100/lastRequest/${from}_actionHook`);
-    //console.log(JSON.stringify(obj));
-    t.ok(obj.body.speech.alternatives[0].transcript.toLowerCase().includes('like to speak to customer support'),
-      'transcribe: succeeds when using deepgram credentials');
-
    disconnect();
  } catch (err) {
    console.log(`error received: ${err}`);
--- a/tracer.js
+++ b/tracer.js
@@ -25,38 +25,29 @@ module.exports = (serviceName) => {
      }),
    });

-    const exporters = [];
-
+    let exporter;
    if (OTEL_EXPORTER_JAEGER_AGENT_HOST  || OTEL_EXPORTER_JAEGER_ENDPOINT) {
-      exporters.push(new JaegerExporter());
+      exporter = new JaegerExporter();
    }
-
-    if (OTEL_EXPORTER_ZIPKIN_URL) {
-      exporters.push(new ZipkinExporter({url:OTEL_EXPORTER_ZIPKIN_URL}));
+    else if (OTEL_EXPORTER_ZIPKIN_URL) {
+      exporter = new ZipkinExporter({url:OTEL_EXPORTER_ZIPKIN_URL});
    }
-
-    if (OTEL_EXPORTER_ZIPKIN_URL) {
-      exporters.push(new ZipkinExporter({url:OTEL_EXPORTER_ZIPKIN_URL}));
-    }
-
-    if (OTEL_EXPORTER_COLLECTOR_URL) {
-      exporters.push(new OTLPTraceExporter({
+    else {
+      exporter = new OTLPTraceExporter({
        url: OTEL_EXPORTER_COLLECTOR_URL
-      }));
+      });
    }

-    exporters.forEach((element) => {
-      provider.addSpanProcessor(new BatchSpanProcessor(element, {
-        // The maximum queue size. After the size is reached spans are dropped.
-        maxQueueSize: 100,
-        // The maximum batch size of every export. It must be smaller or equal to maxQueueSize.
-        maxExportBatchSize: 10,
-        // The interval between two consecutive exports
-        scheduledDelayMillis: 500,
-        // How long the export can run before it is cancelled
-        exportTimeoutMillis: 30000,
-      }));
-    });
+    provider.addSpanProcessor(new BatchSpanProcessor(exporter, {
+      // The maximum queue size. After the size is reached spans are dropped.
+      maxQueueSize: 100,
+      // The maximum batch size of every export. It must be smaller or equal to maxQueueSize.
+      maxExportBatchSize: 10,
+      // The interval between two consecutive exports
+      scheduledDelayMillis: 500,
+      // How long the export can run before it is cancelled
+      exportTimeoutMillis: 30000,
+    }));

    // Initialize the OpenTelemetry APIs to use the NodeTracerProvider bindings
    provider.register();