wip

support google tts mod
ignore google errors with error_code 0
2026-01-25 02:07:56 +00:00 · 2024-04-17 23:11:03 +07:00 · 2024-04-17 22:09:55 +07:00 · 2024-04-16 20:06:26 -04:00 · 2024-04-15 16:25:12 -04:00 · 2024-04-15 15:38:10 -04:00
38 changed files with 6729 additions and 8884 deletions
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -9,7 +9,7 @@ jobs:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v3
        with:
-          node-version: 18
+          node-version: 20
      - run: npm ci
      - run: npm run jslint
      - run: docker pull drachtio/sipp
--- a/.gitignore
+++ b/.gitignore
@@ -42,3 +42,4 @@ ecosystem.config.js
 test/credentials/*.json
 run-tests.sh
 run-coverage.sh
+.vscode
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -1,17 +0,0 @@
-{
-  // 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/lib/config.js
+++ b/lib/config.js
@@ -130,6 +130,10 @@ const JAMBONZ_RECORD_WS_PASSWORD = process.env.JAMBONZ_RECORD_WS_PASSWORD || pro
 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;
+
 module.exports = {
  JAMBONES_MYSQL_HOST,
  JAMBONES_MYSQL_USER,
@@ -152,6 +156,7 @@ module.exports = {
  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,
@@ -210,5 +215,6 @@ module.exports = {
  JAMBONZ_RECORD_WS_USERNAME,
  JAMBONZ_RECORD_WS_PASSWORD,
  JAMBONZ_DISABLE_DIAL_PAI_HEADER,
-  JAMBONES_DISABLE_DIRECT_P2P_CALL
+  JAMBONES_DISABLE_DIRECT_P2P_CALL,
+  JAMBONES_USE_FREESWITCH_TIMER_FD
 };
--- a/lib/middleware.js
+++ b/lib/middleware.js
@@ -97,7 +97,7 @@ module.exports = function(srf, logger) {
    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:[\d]+@[\d]+\.[\d]+\.[\d]+\.[\d]+/g;
+      const regex = /sip:[a-zA-Z0-9]+@[a-zA-Z0-9.-_]+/g;
      const sipURIs = ciscoParticipants.match(regex);
      logger.info(`X-Cisco-Recording-Participant : ${sipURIs} `);
      if (sipURIs && sipURIs.length > 0) {
--- a/lib/session/adulting-call-session.js
+++ b/lib/session/adulting-call-session.js
@@ -53,16 +53,24 @@ class AdultingCallSession extends CallSession {
  }

  _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 caller'});
-      this.callInfo.callTerminationBy = 'caller';
+      this.rootSpan.setAttributes({'call.termination': `hangup by ${terminatedBy}`});
+      this.callInfo.callTerminationBy = terminatedBy;
      this.emit('callStatusChange', {
        callStatus: CallStatus.Completed,
        duration
      });
    }
-    this.logger.info('InboundCallSession: caller hung up');
+    this.logger.info(`InboundCallSession: ${terminatedBy} hung up`);
    this._callReleased();
    this.req.removeAllListeners('cancel');
  }
--- a/lib/session/call-session.js
+++ b/lib/session/call-session.js
@@ -7,20 +7,25 @@ const {
  TaskName,
  KillReason,
  RecordState,
-  AllowedSipRecVerbs
+  AllowedSipRecVerbs,
+  AllowedConfirmSessionVerbs
 } = require('../utils/constants');
 const moment = require('moment');
 const assert = require('assert');
 const sessionTracker = require('./session-tracker');
 const makeTask = require('../tasks/make_task');
+const parseDecibels = require('../utils/parse-decibels');
 const { normalizeJambones } = require('@jambonz/verb-specifications');
 const listTaskNames = require('../utils/summarize-tasks');
 const HttpRequestor = require('../utils/http-requestor');
 const WsRequestor = require('../utils/ws-requestor');
 const {
  JAMBONES_INJECT_CONTENT,
+  JAMBONES_EAGERLY_PRE_CACHE_AUDIO,
  AWS_REGION,
+  JAMBONES_USE_FREESWITCH_TIMER_FD
 } = require('../config');
+const bent = require('bent');
 const BackgroundTaskManager = require('../utils/background-task-manager');
 const BADPRECONDITIONS = 'preconditions not met';
 const CALLER_CANCELLED_ERR_MSG = 'Response not sent due to unknown transaction';
@@ -107,13 +112,17 @@ class CallSession extends Emitter {
      this.requestor.removeAllListeners();
      this.application.requestor = newRequestor;
      this.requestor.on('command', this._onCommand.bind(this));
+      this.logger.debug(`CallSession: ${this.callSid} listener count ${this.requestor.listenerCount('command')}`);
      this.requestor.on('connection-dropped', this._onWsConnectionDropped.bind(this));
      this.requestor.on('handover', handover.bind(this));
    };

-    this.requestor.on('command', this._onCommand.bind(this));
-    this.requestor.on('connection-dropped', this._onWsConnectionDropped.bind(this));
-    this.requestor.on('handover', handover.bind(this));
+    if (!this.isConfirmCallSession) {
+      this.requestor.on('command', this._onCommand.bind(this));
+      this.logger.debug(`CallSession: ${this.callSid} listener count ${this.requestor.listenerCount('command')}`);
+      this.requestor.on('connection-dropped', this._onWsConnectionDropped.bind(this));
+      this.requestor.on('handover', handover.bind(this));
+    }
  }

  /**
@@ -446,6 +455,47 @@ class CallSession extends Emitter {
    this._sipRequestWithinDialogHook = url;
  }

+  // Bot Delay (actionHook delayed)
+  get actionHookDelayEnabled() {
+    return this._actionHookDelayEnabled;
+  }
+
+  set actionHookDelayEnabled(e) {
+    this._actionHookDelayEnabled = e;
+  }
+
+  get actionHookNoResponseTimeout() {
+    return this._actionHookNoResponseTimeout;
+  }
+
+  set actionHookNoResponseTimeout(e) {
+    this._actionHookNoResponseTimeout = e;
+  }
+
+  get actionHookNoResponseGiveUpTimeout() {
+    return this._actionHookNoResponseGiveUpTimeout;
+  }
+
+  set actionHookNoResponseGiveUpTimeout(e) {
+    this._actionHookNoResponseGiveUpTimeout = e;
+  }
+
+  get actionHookDelayRetries() {
+    return this._actionHookDelayRetries;
+  }
+
+  set actionHookDelayRetries(e) {
+    this._actionHookDelayRetries = e;
+  }
+
+  get actionHookDelayActions() {
+    return this._actionHookDelayActions;
+  }
+
+  set actionHookDelayActions(e) {
+    this._actionHookDelayActions = e;
+  }
+
  hasGlobalSttPunctuation() {
    return this._globalSttPunctuation !== undefined;
  }
@@ -466,6 +516,18 @@ class CallSession extends Emitter {
    this.speechSynthesisVoice = this._origSynthesizerSettings.voice;
  }

+  enableFillerNoise(opts) {
+    this._fillerNoise = opts;
+  }
+
+  disableFillerNoise() {
+    this._fillerNoise = null;
+  }
+
+  get fillerNoise() {
+    return this._fillerNoise;
+  }
+
  async notifyRecordOptions(opts) {
    const {action} = opts;
    this.logger.debug({opts}, 'CallSession:notifyRecordOptions');
@@ -577,8 +639,10 @@ class CallSession extends Emitter {
      const res = await this.dlg.request({
        method: 'INFO',
        headers: {
-          'X-Reason': 'pauseCallRecording'
-        }
+          'X-Reason': 'pauseCallRecording',
+          ...(this.recordOptions.headers && {'Content-Type': 'application/json'})
+        },
+        ...(this.recordOptions.headers && {body: JSON.stringify(this.recordOptions.headers) + '\n'})
      });
      if (res.status === 200) {
        this._recordState = RecordState.RecordingPaused;
@@ -599,8 +663,10 @@ class CallSession extends Emitter {
      const res = await this.dlg.request({
        method: 'INFO',
        headers: {
-          'X-Reason': 'resumeCallRecording'
-        }
+          'X-Reason': 'resumeCallRecording',
+          ...(this.recordOptions.headers && {'Content-Type': 'application/json'})
+        },
+        ...(this.recordOptions.headers && {body: JSON.stringify(this.recordOptions.headers) + '\n'})
      });
      if (res.status === 200) {
        this._recordState = RecordState.RecordingOn;
@@ -635,7 +701,8 @@ class CallSession extends Emitter {
      }
      task = await this.backgroundTaskManager.newTask('bargeIn', gather);
      task.sticky = autoEnable;
-      task.once('bargeIn-done', () => {
+      // listen to the bargein-done from background manager
+      this.backgroundTaskManager.on('bargeIn-done', () => {
        if (this.requestor instanceof WsRequestor) {
          try {
            this.kill(true);
@@ -648,6 +715,8 @@ class CallSession extends Emitter {
    }
  }
  async disableBotMode() {
+    const task = this.backgroundTaskManager.getTask('bargeIn');
+    if (task) task.sticky = false;
    this.backgroundTaskManager.stop('bargeIn');
  }

@@ -688,7 +757,7 @@ class CallSession extends Emitter {
        (type === 'stt' && credential.use_for_stt)
      )) {
        this.logger.info(
-          `Speech vendor: ${credential.vendor} ${credential.label ? `, label: ${credential.label}` : ''} selected`);
+          `${type}: ${credential.vendor} ${credential.label ? `, label: ${credential.label}` : ''}  `);
        if ('google' === vendor) {
          if (type === 'tts' && !credential.tts_tested_ok ||
            type === 'stt' && !credential.stt_tested_ok) {
@@ -749,7 +818,9 @@ class CallSession extends Emitter {
        else if ('deepgram' === vendor) {
          return {
            speech_credential_sid: credential.speech_credential_sid,
-            api_key: credential.api_key
+            api_key: credential.api_key,
+            deepgram_stt_uri: credential.deepgram_stt_uri,
+            deepgram_stt_use_tls: credential.deepgram_stt_use_tls
          };
        }
        else if ('soniox' === vendor) {
@@ -784,6 +855,19 @@ class CallSession extends Emitter {
            model_id: credential.model_id,
            options: credential.options
          };
+        } else if ('playht' === vendor) {
+          return {
+            api_key: credential.api_key,
+            user_id: credential.user_id,
+            voice_engine: credential.voice_engine,
+            options: credential.options
+          };
+        } else if ('rimelabs' === vendor) {
+          return {
+            api_key: credential.api_key,
+            model_id: credential.model_id,
+            options: credential.options
+          };
        } else if ('assemblyai' === vendor) {
          return {
            speech_credential_sid: credential.speech_credential_sid,
@@ -827,6 +911,11 @@ class CallSession extends Emitter {
      const task = this.tasks.shift();
      this.logger.info(`CallSession:exec starting task #${stackNum}:${taskNum}: ${task.name}`);
      this._notifyTaskStatus(task, {event: 'starting'});
+      // Register verbhook span wait for end
+      task.on('VerbHookSpanWaitForEnd', ({span}) => {
+        this.verbHookSpan = span;
+      });
+      task.on('ActionHookDelayActionOptions', this._onActionHookDelayActions.bind(this));
      try {
        const resources = await this._evaluatePreconditions(task);
        let skip = false;
@@ -883,7 +972,6 @@ class CallSession extends Emitter {
    // all done - cleanup
    this.logger.info('CallSession:exec all tasks complete');
    this._stopping = true;
-    this.disableBotMode();
    this._onTasksDone();
    this._clearResources();

@@ -969,6 +1057,64 @@ class CallSession extends Emitter {
    }
  }

+  /**
+   * perform live call control - create rest:dial
+   * @param {obj} opts create call options
+   */
+  async _lccCallDial(opts) {
+    try {
+      const restDialUrl = `${this.srf.locals.serviceUrl}/v1/createCall`;
+      await this.transformInputIfRequired(opts);
+      const resp = bent('POST', 'json', 201)(restDialUrl, opts);
+      this.logger.info(resp.body, 'successfully create outbound call');
+      return resp.body;
+    } catch (err) {
+      if (err.json) {
+        err.body = await err.json();
+      }
+      this.logger.error(err, 'failed to create outbound call from ' + this.callSid);
+      this._notifyTaskError(err.body);
+    }
+  }
+
+  async transformInputIfRequired(opts) {
+    const {
+      lookupAppBySid
+    }  = this.srf.locals.dbHelpers;
+    opts.account_sid = this.accountSid;
+
+    if (opts.application_sid) {
+      this.logger.debug(`Callsession:_validateCreateCall retrieving application ${opts.application_sid}`);
+      const application = await lookupAppBySid(opts.application_sid);
+      Object.assign(opts, {
+        call_hook: application.call_hook,
+        app_json: application.app_json,
+        call_status_hook: application.call_status_hook,
+        speech_synthesis_vendor: application.speech_synthesis_vendor,
+        speech_synthesis_language: application.speech_synthesis_language,
+        speech_synthesis_voice: application.speech_synthesis_voice,
+        speech_recognizer_vendor: application.speech_recognizer_vendor,
+        speech_recognizer_language: application.speech_recognizer_language
+      });
+      this.logger.debug({opts, application}, 'Callsession:_validateCreateCall augmented with application settings');
+    }
+
+    if (typeof opts.call_hook === 'string') {
+      const url = opts.call_hook;
+      opts.call_hook = {
+        url,
+        method: 'POST'
+      };
+    }
+    if (typeof opts.call_status_hook === 'string') {
+      const url = opts.call_status_hook;
+      opts.call_status_hook = {
+        url,
+        method: 'POST'
+      };
+    }
+  }
+
  /**
   * perform live call control -- set a new call_hook
   * @param {object} opts
@@ -1029,11 +1175,20 @@ class CallSession extends Emitter {
      const t = normalizeJambones(this.logger, tasks).map((tdata) => makeTask(this.logger, tdata));
      this.logger.info({tasks: listTaskNames(t)}, 'CallSession:_lccCallHook new task list');
      this.replaceApplication(t);
+      if (this.wakeupResolver) {
+        //this.logger.debug({resolution}, 'CallSession:_onCommand - got commands, waking up..');
+        this.wakeupResolver({reason: 'lcc: new tasks'});
+        this.wakeupResolver = null;
+      }
    }
    else {
      /* we started a new app on the child leg, but nothing given for parent so hang him up */
      this.currentTask.kill(this);
    }
+    this._endVerbHookSpan();
+    // clear all delay action hook timeout if there is
+    this._clearActionHookNoResponseGiveUpTimer();
+    this._clearActionHookNoResponseTimer();
  }

  /**
@@ -1059,6 +1214,9 @@ class CallSession extends Emitter {
   * @param {string} opts.transcribe_status - 'pause' or 'resume'
  */
  async _lccTranscribeStatus(opts) {
+    if (this.backgroundTaskManager.isTaskRunning('transcribe')) {
+      this.backgroundTaskManager.getTask('transcribe').updateTranscribe(opts.transcribe_status);
+    }
    const task = this.currentTask;
    if (!task || ![TaskName.Dial, TaskName.Transcribe].includes(task.name)) {
      return this.logger.info(`CallSession:_lccTranscribeStatus - invalid transcribe_status in task ${task.name}`);
@@ -1086,7 +1244,15 @@ class CallSession extends Emitter {
    this.callInfo.customerData = tag;
  }

-  async _lccMuteStatus(callSid, mute) {
+  async _lccConferenceParticipantAction(opts) {
+    const task = this.currentTask;
+    if (!task || TaskName.Conference !== task.name || !this.isInConference) {
+      return this.logger.info('CallSession:_lccConferenceParticipantState - invalid cmd, call is not in conference');
+    }
+    task.doConferenceParticipantAction(this, opts);
+  }
+
+  async _lccMuteStatus(mute, callSid) {
    // this whole thing requires us to be in a Dial or Conference verb
    const task = this.currentTask;
    if (!task || ![TaskName.Dial, TaskName.Conference].includes(task.name)) {
@@ -1218,6 +1384,78 @@ Duration=${duration} `
    task.whisper(tasks, callSid).catch((err) => this.logger.error(err, 'CallSession:_lccWhisper'));
  }

+  async _lccConfig(opts) {
+    this.logger.debug({opts}, 'CallSession:_lccConfig');
+    const t = normalizeJambones(this.logger, [
+      {
+        verb: 'config',
+        ...opts
+      }
+    ])
+      .map((tdata) => makeTask(this.logger, tdata));
+
+    const task = t[0];
+
+    const {span, ctx} = this.rootSpan.startChildSpan(`verb:${task.summary}`);
+    span.setAttributes({'verb.summary': task.summary});
+    task.span = span;
+    task.ctx = ctx;
+    try {
+      await task.exec(this, {ep: this.ep});
+    } catch (err) {
+      this.logger.error(err, 'CallSession:_lccConfig');
+    }
+    task.span.end();
+  }
+
+  async _lccDub(opts, callSid) {
+    this.logger.debug({opts}, `CallSession:_lccDub on call_sid ${callSid}`);
+    const t = normalizeJambones(this.logger, [
+      {
+        verb: 'dub',
+        ...opts
+      }
+    ])
+      .map((tdata) => makeTask(this.logger, tdata));
+
+    const task = t[0];
+    const ep = this.currentTask?.name === TaskName.Dial && callSid === this.currentTask?.callSid ?
+      this.currentTask.ep :
+      this.ep;
+
+    const {span, ctx} = this.rootSpan.startChildSpan(`verb:${task.summary}`);
+    span.setAttributes({'verb.summary': task.summary});
+    task.span = span;
+    task.ctx = ctx;
+    try {
+      await task.exec(this, {ep});
+    } catch (err) {
+      this.logger.error(err, 'CallSession:_lccDub');
+    }
+    task.span.end();
+  }
+
+
+  async _lccBoostAudioSignal(opts, callSid) {
+    const ep = this.currentTask?.name === TaskName.Dial && callSid === this.currentTask?.callSid ?
+      this.currentTask.ep :
+      this.ep;
+    const db = parseDecibels(opts);
+    this.logger.info(`_lccBoostAudioSignal: boosting audio signal by ${db} dB`);
+    const args = [ep.uuid, 'setGain', db];
+    const response = await ep.api('uuid_dub', args);
+    this.logger.info({response}, '_lccBoostAudioSignal: response from freeswitch');
+  }
+
+
+  /**
+   * perform call hangup by jambonz
+   */
+
+  async hangup() {
+    return this._callerHungup();
+  }
+

  /**
   * perform live call control
@@ -1240,7 +1478,7 @@ Duration=${duration} `
      await this._lccTranscribeStatus(opts);
    }
    else if (opts.mute_status) {
-      await this._lccMuteStatus(callSid, opts.mute_status === 'mute');
+      await this._lccMuteStatus(opts.mute_status === 'mute', callSid);
    }
    else if (opts.conf_hold_status) {
      await this._lccConfHoldStatus(opts);
@@ -1260,6 +1498,15 @@ Duration=${duration} `
    else if (opts.tag) {
      return this._lccTag(opts);
    }
+    else if (opts.conferenceParticipantAction) {
+      return this._lccConferenceParticipantState(opts);
+    }
+    else if (opts.dub) {
+      return this._lccDub(opts);
+    }
+    else if (opts.boostAudioSignal) {
+      return this._lccBoostAudioSignal(opts, callSid);
+    }

    // whisper may be the only thing we are asked to do, or it may that
    // we are doing a whisper after having muted, paused recording etc..
@@ -1291,6 +1538,19 @@ Duration=${duration} `
        tasks = pruned;
      }
    }
+    else if (this.isConfirmCallSession) {
+      const pruned = tasks.filter((t) => AllowedConfirmSessionVerbs.includes(t.name));
+      if (0 === pruned.length) {
+        this.logger.info({tasks},
+          'CallSession:replaceApplication - filtering verbs allowed on an confirmSession call');
+        return;
+      }
+      if (pruned.length < tasks.length) {
+        this.logger.info(
+          'CallSession:replaceApplication - removing verbs that are not allowed for confirmSession call');
+        tasks = pruned;
+      }
+    }
    this.tasks = tasks;
    this.taskIdx = 0;
    this.stackIdx++;
@@ -1300,11 +1560,17 @@ Duration=${duration} `
      this.currentTask.kill(this, KillReason.Replaced);
      this.currentTask = null;
    }
+    else if (this.wakeupResolver) {
+      this.logger.debug('CallSession:replaceApplication - waking up');
+      this.wakeupResolver({reason: 'new tasks'});
+      this.wakeupResolver = null;
+    }
  }

  kill(onBackgroundGatherBargein = false) {
    if (this.isConfirmCallSession) this.logger.debug('CallSession:kill (ConfirmSession)');
    else this.logger.info('CallSession:kill');
+    this._endVerbHookSpan();
    if (this.currentTask) {
      this.currentTask.kill(this);
      this.currentTask = null;
@@ -1323,13 +1589,59 @@ Duration=${duration} `
          this.logger.info('CallSession:kill - found bargein disabled in the stack, clearing to that point');
          break;
        }
-        this.tasks.shift();
+        const rem = this.tasks.shift();
+        this.logger.debug(`CallSession:kill - clearing task ${rem.summary}`);
      }
    }
    else this.tasks = [];
    this.taskIdx = 0;
  }

+  _preCacheAudio(newTasks) {
+    /**
+     * only precache audio for the a queued say if we have one or more non-Config verbs
+     * ahead of it in the queue.  This is because the Config verb returns immediately
+     * and would not give us enough time to generate the audio.  The point of precaching
+     * is to take advantage of getting the audio in advance of being needed, so we need
+     * to be confident we have some time before the say verb is executed, and the Config
+     * does not give us that confidence since it returns immediately.
+     */
+    const haveQueuedNonConfig = this.tasks.findIndex((t) => t.name !== TaskName.Config) !== -1;
+    let tasks = haveQueuedNonConfig ? newTasks : [];
+    if (!haveQueuedNonConfig) {
+      const idxFirstNotConfig = newTasks.findIndex((t) => t.name !== TaskName.Config);
+      if (-1 === idxFirstNotConfig) return;
+      tasks = newTasks.slice(idxFirstNotConfig + 1);
+    }
+
+    for (const task of tasks) {
+      if (task.name === TaskName.Config && task.hasSynthesizer) {
+        /* if they change synthesizer settings don't try to precache */
+        break;
+      }
+      if (task.name === TaskName.Say) {
+        /* identify vendor language, voice, and label */
+        const vendor = task.synthesizer.vendor && task.synthesizer.vendor !== 'default' ?
+          task.synthesizer.vendor :
+          this.speechSynthesisVendor;
+        const language = task.synthesizer.language && task.synthesizer.language !== 'default' ?
+          task.synthesizer.language :
+          this.speechSynthesisLanguage ;
+        const voice =  task.synthesizer.voice && task.synthesizer.voice !== 'default' ?
+          task.synthesizer.voice :
+          this.speechSynthesisVoice;
+        const label = task.synthesizer.label && task.synthesizer.label !== 'default' ?
+          task.synthesizer.label :
+          this.speechSynthesisLabel;
+
+        this.logger.info({vendor, language, voice, label},
+          'CallSession:_preCacheAudio - precaching audio for future prompt');
+        task._synthesizeWithSpecificVendor(this, this.ep, {vendor, language, voice, label, preCache: true})
+          .catch((err) => this.logger.error(err, 'CallSession:_preCacheAudio - error precaching audio'));
+      }
+    }
+  }
+
  /**
   * Append tasks to the current execution stack UNLESS there is a gather in the stack.
   * in that case, insert the tasks before the gather AND if the tasks include
@@ -1376,10 +1688,11 @@ Duration=${duration} `

  _onCommand({msgid, command, call_sid, queueCommand, data}) {
    this.logger.info({msgid, command, queueCommand, data}, 'CallSession:_onCommand - received command');
-    const resolution = {reason: 'received command', queue: queueCommand, command};
+    let resolution;
    switch (command) {
      case 'redirect':
        if (Array.isArray(data)) {
+          this._endVerbHookSpan();
          const t = normalizeJambones(this.logger, data)
            .map((tdata) => makeTask(this.logger, tdata));
          if (!queueCommand) {
@@ -1387,14 +1700,20 @@ Duration=${duration} `
            this.replaceApplication(t);
          }
          else if (JAMBONES_INJECT_CONTENT) {
+            if (JAMBONES_EAGERLY_PRE_CACHE_AUDIO) this._preCacheAudio(t);
            this._injectTasks(t);
            this.logger.info({tasks: listTaskNames(this.tasks)}, 'CallSession:_onCommand - updated task list');
          }
          else {
+            if (JAMBONES_EAGERLY_PRE_CACHE_AUDIO) this._preCacheAudio(t);
            this.tasks.push(...t);
            this.logger.info({tasks: listTaskNames(this.tasks)}, 'CallSession:_onCommand - updated task list');
          }
+          resolution = {reason: 'received command, new tasks', queue: queueCommand, command};
          resolution.command = listTaskNames(t);
+          // clear all delay action hook timeout if there is
+          this._clearActionHookNoResponseGiveUpTimer();
+          this._clearActionHookNoResponseTimer();
        }
        else this._lccCallHook(data);
        break;
@@ -1403,8 +1722,24 @@ Duration=${duration} `
        this._lccCallStatus(data);
        break;

+      case 'config':
+        this._lccConfig(data, call_sid);
+        break;
+
+      case 'dial':
+        this._lccCallDial(data);
+        break;
+
+      case 'dub':
+        this._lccDub(data, call_sid);
+        break;
+
+      case 'record':
+        this.notifyRecordOptions(data);
+        break;
+
      case 'mute:status':
-        this._lccMuteStatus(call_sid, data);
+        this._lccMuteStatus(data, call_sid);
        break;

      case 'conf:mute-status':
@@ -1415,6 +1750,10 @@ Duration=${duration} `
        this._lccConfHoldStatus(data);
        break;

+      case 'conf:participant-action':
+        this._lccConferenceParticipantAction(data);
+        break;
+
      case 'listen:status':
        this._lccListenStatus(data);
        break;
@@ -1441,10 +1780,17 @@ Duration=${duration} `
          });
        break;

+      case 'boostAudioSignal':
+        this._lccBoostAudioSignal(data, call_sid)
+          .catch((err) => {
+            this.logger.info({err, data}, 'CallSession:_onCommand - error boosting audio signal');
+          });
+        break;
+
      default:
        this.logger.info(`CallSession:_onCommand - invalid command ${command}`);
    }
-    if (this.wakeupResolver) {
+    if (this.wakeupResolver && resolution) {
      //this.logger.debug({resolution}, 'CallSession:_onCommand - got commands, waking up..');
      this.wakeupResolver(resolution);
      this.wakeupResolver = null;
@@ -1627,6 +1973,8 @@ Duration=${duration} `
    this.rootSpan && this.rootSpan.end();
    // close all background tasks
    this.backgroundTaskManager.stopAll();
+    this._clearActionHookNoResponseGiveUpTimer();
+    this._clearActionHookNoResponseTimer();
  }

  /**
@@ -1637,6 +1985,14 @@ Duration=${duration} `
    assert(false, 'subclass responsibility to override this method');
  }

+  /**
+   * called when the jambonz has hung up.  Provided for subclasses to override
+   * in order to apply logic at this point if needed.
+   */
+  _jambonzHangup() {
+    assert(false, 'subclass responsibility to override this method');
+  }
+
  /**
   * get a media server to use for this call
   */
@@ -1684,6 +2040,10 @@ Duration=${duration} `
      }
      this.logger.debug(`CallSession:propagateAnswer - answered callSid ${this.callSid}`);
    }
+    else {
+      this.logger.debug('CallSession:propagateAnswer - call already answered - re-anchor media with a reinvite');
+      await this.dlg.modify(this.ep.local.sdp);
+    }
  }

  async _onRequestWithinDialog(req, res) {
@@ -1712,7 +2072,7 @@ Duration=${duration} `
          res.send(200, {body: this.ep.local.sdp});
        }
        else {
-          if (this.currentTask.name === TaskName.Dial && this.currentTask.isOnHold) {
+          if (this.currentTask.name === TaskName.Dial && this.currentTask.isOnHoldEnabled) {
            this.logger.info('onholdMusic reINVITE after media has been released');
            await this.currentTask.handleReinviteAfterMediaReleased(req, res);
          } else {
@@ -1988,8 +2348,12 @@ Duration=${duration} `
  }

  _configMsEndpoint() {
-    if (this.onHoldMusic) {
-      this.ep.set({hold_music: `shout://${this.onHoldMusic.replace(/^https?:\/\//, '')}`});
+    const opts = {
+      ...(this.onHoldMusic && {holdMusic: `shout://${this.onHoldMusic.replace(/^https?:\/\//, '')}`}),
+      ...(JAMBONES_USE_FREESWITCH_TIMER_FD && {timer_name: 'timerfd'})
+    };
+    if (Object.keys(opts).length > 0) {
+      this.ep.set(opts);
    }
  }

@@ -2041,6 +2405,76 @@ Duration=${duration} `
  stopBackgroundTask(type) {
    this.backgroundTaskManager.stop(type);
  }
+
+  _endVerbHookSpan() {
+    if (this.verbHookSpan) {
+      this.verbHookSpan.end();
+      this.verbHookSpan = null;
+    }
+  }
+  // actionHook delay actions
+  _onActionHookDelayActions(options) {
+    this._actionHookDelayRetryCount = 0;
+    this._startActionHookNoResponseTimer(options);
+    this._startActionHookNoResponseGiveUpTimer(options);
+  }
+
+  _startActionHookNoResponseTimer(options) {
+    this._clearActionHookNoResponseTimer();
+    if (options.noResponseTimeoutMs) {
+      this.logger.debug(`CallSession:_startActionHookNoResponseTimer ${options.noResponseTimeoutMs}`);
+      this._actionHookNoResponseTimer = setTimeout(() => {
+        if (this._actionHookDelayRetryCount >= options.retries) {
+          this._jambonzHangup();
+        }
+        const verb = options.actions[this._actionHookDelayRetryCount % options.actions.length];
+        // Inject verb to main stack
+        const t = normalizeJambones(this.logger, [verb])
+          .map((tdata) => makeTask(this.logger, tdata));
+        if (t.length) {
+          t[0].on('playDone', (err) => {
+            if (err) this.logger.error({err}, `Call-Session:exec Error delay action, play ${verb}`);
+            this._startActionHookNoResponseTimer(options);
+          });
+        }
+        this.tasks.push(...t);
+        if (this.wakeupResolver) {
+          this.wakeupResolver({reason: 'actionHook no response, applied delay actions', verb});
+          this.wakeupResolver = null;
+        }
+
+        this.logger.debug(`CallSession:_startActionHookNoResponseTimer, executing verb ${JSON.stringify(verb)}`);
+
+        this._actionHookDelayRetryCount++;
+      }, options.noResponseTimeoutMs);
+    }
+  }
+
+  _clearActionHookNoResponseTimer() {
+    if (this._actionHookNoResponseTimer) {
+      clearTimeout(this._actionHookNoResponseTimer);
+    }
+    this._actionHookNoResponseTimer = null;
+  }
+
+  _startActionHookNoResponseGiveUpTimer(options) {
+    this._clearActionHookNoResponseGiveUpTimer();
+    if (options.noResponseGiveUpTimeoutMs) {
+      this.logger.debug(`CallSession:_startActionHookNoResponseGiveUpTimer ${options.noResponseGiveUpTimeoutMs}`);
+      this._actionHookNoResponseGiveUpTimer = setTimeout(() => {
+        this.logger.debug('CallSession:_startActionHookNoResponseGiveUpTimer Timeout');
+        this._jambonzHangup();
+        this._actionHookNoResponseGiveUpTimer = null;
+      }, options.noResponseGiveUpTimeoutMs);
+    }
+  }
+
+  _clearActionHookNoResponseGiveUpTimer() {
+    if (this._actionHookNoResponseGiveUpTimer) {
+      clearTimeout(this._actionHookNoResponseGiveUpTimer);
+    }
+    this._actionHookNoResponseGiveUpTimer = null;
+  }
 }

 module.exports = CallSession;
--- a/lib/session/confirm-call-session.js
+++ b/lib/session/confirm-call-session.js
@@ -34,6 +34,9 @@ class ConfirmCallSession extends CallSession {
  _callerHungup() {
  }

+  _jambonzHangup() {
+  }
+

 }

--- a/lib/session/inbound-call-session.js
+++ b/lib/session/inbound-call-session.js
@@ -67,15 +67,27 @@ class InboundCallSession extends CallSession {
   * This is invoked when the caller hangs up, in order to calculate the call duration.
   */
  _callerHungup() {
+    this._hangup('caller');
+  }
+
+  _jambonzHangup() {
+    this._hangup();
+  }
+
+  _hangup(terminatedBy = 'jambonz') {
+    if (this.dlg === null) {
+      this.logger.info('InboundCallSession:_hangup - race condition, dlg cleared by app hangup');
+      return;
+    }
    assert(this.dlg.connectTime);
    const duration = moment().diff(this.dlg.connectTime, 'seconds');
-    this.rootSpan.setAttributes({'call.termination': 'hangup by caller'});
-    this.callInfo.callTerminationBy = 'caller';
+    this.rootSpan.setAttributes({'call.termination': `hangup by ${terminatedBy}`});
+    this.callInfo.callTerminationBy = terminatedBy;
    this.emit('callStatusChange', {
      callStatus: CallStatus.Completed,
      duration
    });
-    this.logger.info('InboundCallSession: caller hung up');
+    this.logger.info(`InboundCallSession: ${terminatedBy} hung up`);
    this._callReleased();
    this.req.removeAllListeners('cancel');
  }
--- a/lib/session/rest-call-session.js
+++ b/lib/session/rest-call-session.js
@@ -49,13 +49,21 @@ class RestCallSession extends CallSession {
   * 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 = 'jamboz') {
    if (this.restDialTask) {
      this.restDialTask.turnOffAmd();
    }
-    this.callInfo.callTerminationBy = 'caller';
+    this.callInfo.callTerminationBy = terminatedBy;
    const duration = moment().diff(this.dlg.connectTime, 'seconds');
    this.emit('callStatusChange', {callStatus: CallStatus.Completed, duration});
-    this.logger.debug('RestCallSession: called party hung up');
+    this.logger.debug(`RestCallSession: called party hung up by ${terminatedBy}`);
    this._callReleased();
  }

--- a/lib/tasks/answer.js
+++ b/lib/tasks/answer.js
@@ -0,0 +1,22 @@
+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
@@ -348,8 +348,14 @@ class Conference extends Task {
      Object.assign(opts, {flags: {
        ...(this.endConferenceOnExit && {endconf: true}),
        ...(this.startConferenceOnEnter && {moderator: true}),
-        ...(this.joinMuted && {joinMuted: true}),
+        ...((this.joinMuted || this.data.speakOnlyTo) && {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 {
@@ -358,6 +364,11 @@ class Conference extends Task {
      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);
@@ -384,6 +395,9 @@ class Conference extends Task {
          .catch((err) => {});
      }

+      if (this.data.speakOnlyTo) {
+        this.setCoachMode(this.data.speakOnlyTo);
+      }
    } catch (err) {
      this.logger.error(err, `Failed to join conference ${this.confName}`);
      throw err;
@@ -428,7 +442,15 @@ class Conference extends Task {
    }
  }

-  async doConferenceHold(cs, opts) {
+  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) {
    assert (cs.isInConference);

    const {conf_hold_status, wait_hook} = opts;
@@ -465,6 +487,40 @@ class Conference extends Task {
    }
  }

+  async doConferenceParticipantAction(cs, opts) {
+    const {action, tag} = 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'});
+        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;
+      default:
+        this.logger.info(`Conference:doConferenceParticipantState - unhandled action ${action}`);
+        break;
+    }
+  }
+
  async _doWaitHookWhileOnHold(cs, dlg, wait_hook) {
    do {
      try {
@@ -642,11 +698,14 @@ class Conference extends Task {
  }

  // conference event handlers
+  _onAddMember(logger, cs, evt) {
+    logger.debug({evt}, `Conference:_onAddMember - member 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) {
-      this.logger.info(`Conference:_onDelMember - I was dropped from conference ${this.confName}, task is complete`);
+      logger.info(`Conference:_onDelMember - I was dropped from conference ${this.confName}, task is complete`);
      this.replaceEndpointAndEnd(cs);
    }
  }
@@ -675,6 +734,53 @@ class Conference extends Task {
    }
  }

+  async setCoachMode(speakOnlyTo) {
+    try {
+      const response = await this.ep.api('conference', [this.confName, 'gettag', speakOnlyTo, 'nomatch']);
+      this.logger.info(`Conference:_setCoachMode: my audio will only be sent to particpants ${response}`);
+      await this.ep.api('conference', [this.confName, 'relate', this.memberId, response, 'nospeak']);
+      this.speakOnlyTo = speakOnlyTo;
+      this.coaching = response;
+    } catch (err) {
+      this.logger.error({err, speakOnlyTo}, '_setCoachMode: Error');
+    }
+  }
+
+  async clearCoachMode() {
+    try {
+      if (!this.coaching) {
+        this.logger.info('Conference:_clearCoachMode: no coaching mode to clear');
+        return;
+      }
+      this.logger.info(`Conference:_clearCoachMode: now sending my audio to all, including ${this.coaching}`);
+      await this.ep.api('conference', [this.confName, 'relate', this.memberId, this.coaching, 'clear']);
+      this.speakOnlyTo = null;
+      this.coaching = null;
+    } 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}`);
+    }
+  }
+
 }

 module.exports = Conference;
--- a/lib/tasks/config.js
+++ b/lib/tasks/config.js
@@ -1,16 +1,21 @@
 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'
+      'transcribe',
+      'fillerNoise',
+      'actionHookDelayAction',
+      'boostAudioSignal'
    ].forEach((k) => this[k] = this.data[k] || {});

    if ('notifyEvents' in this.data) {
@@ -49,6 +54,7 @@ class TaskConfig extends Task {
      this.record?.action ||
      this.listen?.url ||
      this.data.amd ||
+      'boostAudioSignal' in this.data ||
      this.transcribe?.enable) ?
      TaskPreconditions.Endpoint :
      TaskPreconditions.None;
@@ -63,6 +69,8 @@ class TaskConfig extends Task {
  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 hasFillerNoise() { return Object.keys(this.fillerNoise).length; }

  get summary() {
    const phrase = [];
@@ -88,9 +96,11 @@ class TaskConfig extends Task {
    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 ${this.data.boostAudioSignal}`);
    return `${this.name}{${phrase.join(',')}}`;
  }

@@ -249,9 +259,35 @@ class TaskConfig extends Task {
        cs.stopBackgroundTask('transcribe');
      }
    }
+
+    if (this.actionHookDelayAction) {
+      cs.actionHookDelayEnabled = this.actionHookDelayAction.enabled || false;
+      cs.actionHookNoResponseTimeout = this.actionHookDelayAction.noResponseTimeout || 0;
+      cs.actionHookNoResponseGiveUpTimeout = this.actionHookDelayAction.noResponseGiveUpTimeout || 0;
+      cs.actionHookDelayRetries = this.actionHookDelayAction.retries || 1;
+      cs.actionHookDelayActions = this.actionHookDelayAction.actions || [];
+    }
    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);
+      }
+    }
  }

  async kill(cs) {
--- a/lib/tasks/dequeue.js
+++ b/lib/tasks/dequeue.js
@@ -73,7 +73,8 @@ class TaskDequeue extends Task {
        try {
          let url;
          if (this.callSid) {
-            url = await retrieveByPatternSortedSet(this.queueName, `*${this.callSid}`);
+            const r = await retrieveByPatternSortedSet(this.queueName, `*${this.callSid}`);
+            url = r[0];
          } else {
            url = await retrieveFromSortedSet(this.queueName);
          }
--- a/lib/tasks/dial.js
+++ b/lib/tasks/dial.js
@@ -14,6 +14,7 @@ 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} = require('../config');
@@ -100,6 +101,8 @@ 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;

    if (this.dtmfHook) {
      const {parentDtmfCollector, childDtmfCollector} = parseDtmfOptions(logger, this.data.dtmfCapture || {});
@@ -117,6 +120,9 @@ 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;
@@ -138,15 +144,17 @@ class TaskDial extends Task {

  get name() { return TaskName.Dial; }

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

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

@@ -549,9 +557,9 @@ 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);
-          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;
          }
        }
@@ -570,7 +578,8 @@ class TaskDial extends Task {
          accountInfo: cs.accountInfo,
          rootSpan: cs.rootSpan,
          startSpan: this.startSpan.bind(this),
-          dialTask: this
+          dialTask: this,
+          onHoldMusic: this.cs.onHoldMusic
        });
        this.dials.set(sd.callSid, sd);

@@ -679,22 +688,43 @@ class TaskDial extends Task {
  async _onReinvite(req, res) {
    try {
      let isHandled = false;
-      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;
+      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});
+          }
          isHandled = true;
-          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);
+          // 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.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();
+          }
          isHandled = true;
-          this.isOutgoingLegHold = false;
        }
      }
      if (!isHandled) {
@@ -755,6 +785,17 @@ 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);
@@ -769,6 +810,18 @@ 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) setTimeout(this._releaseMedia.bind(this, cs, sd), 200);
  }
@@ -811,23 +864,34 @@ class TaskDial extends Task {
    this.epOther = cs.ep;
  }

+  // Handle RE-INVITE hold from caller leg.
  async handleReinviteAfterMediaReleased(req, res) {
    let isHandled = false;
-    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 (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) {
+          // 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 (this._onHoldSession) {
+          this._onHoldSession.kill();
+        }
+      }
    }

    if (!isHandled) {
@@ -846,7 +910,7 @@ class TaskDial extends Task {
      });
  }

-  async _onHoldHook(allowed = [TaskName.Play, TaskName.Say, TaskName.Pause]) {
+  async _onHoldHook(req, allowed = [TaskName.Play, TaskName.Say, TaskName.Pause]) {
    if (this.data.onHoldHook) {
      // send silence for keep Voice quality
      await this.epOther.play('silence_stream://500');
@@ -856,7 +920,13 @@ 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(), httpHeaders);
+            request('verb:hook', this.data.onHoldHook, {
+              ...this.cs.callInfo.toJSON(),
+              hold_detail: {
+                from: req.get('From'),
+                to: req.get('To')
+              }
+            }, 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) {
@@ -865,7 +935,7 @@ class TaskDial extends Task {
          }
          this.logger.debug(`DialTask:_onHoldHook: executing ${tasks.length} tasks`);
          if (tasks.length) {
-            this._playSession = new ConfirmCallSession({
+            this._onHoldSession = new ConfirmCallSession({
              logger: this.logger,
              application: this.cs.application,
              dlg: this.isIncomingLegHold ? this.dlg : this.cs.dlg,
@@ -875,12 +945,12 @@ class TaskDial extends Task {
              tasks,
              rootSpan: this.cs.rootSpan
            });
-            await this._playSession.exec();
-            this._playSession = null;
+            await this._onHoldSession.exec();
+            this._onHoldSession = null;
          }
        } catch (error) {
          this.logger.info(error, 'DialTask:_onHoldHook: failed retrieving waitHook');
-          this._playSession = null;
+          this._onHoldSession = null;
          break;
        }
      } while (allowedTasks && allowedTasks.length > 0 && !this.killed && this.isOnHold);
--- a/lib/tasks/dub.js
+++ b/lib/tasks/dub.js
@@ -0,0 +1,144 @@
+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
@@ -338,6 +338,7 @@ class TaskEnqueue extends Task {
      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));
--- a/lib/tasks/gather.js
+++ b/lib/tasks/gather.js
@@ -27,9 +27,13 @@ class TaskGather extends SttTask {
    [
      'finishOnKey', 'input', 'numDigits', 'minDigits', 'maxDigits',
      'interDigitTimeout', 'partialResultHook', 'bargein', 'dtmfBargein',
-      'speechTimeout', 'timeout', 'say', 'play'
+      'speechTimeout', 'timeout', 'say', 'play', 'actionHookDelayAction', 'fillerNoise'
    ].forEach((k) => this[k] = this.data[k]);

+    // gather default input is digits
+    if (!this.input) {
+      this.input = ['digits'];
+    }
    /* when collecting dtmf, bargein on dtmf is true unless explicitly set to false */
    if (this.dtmfBargein !== false  && this.input.includes('digits')) this.dtmfBargein = true;

@@ -87,6 +91,18 @@ class TaskGather extends SttTask {
      (this.playTask && this.playTask.earlyMedia);
  }

+  get hasFillerNoise() {
+    return Object.keys(this.fillerNoise).length > 0 && this.fillerNoise.enabled !== false;
+  }
+
+  get fillerNoiseUrl() {
+    return this.fillerNoise.url;
+  }
+
+  get fillerNoiseStartDelaySecs() {
+    return this.fillerNoise.startDelaySecs;
+  }
+
  get summary() {
    let s = `${this.name}{`;
    if (this.input.length === 2) s += 'inputs=[speech,digits],';
@@ -107,6 +123,11 @@ class TaskGather extends SttTask {
    await super.exec(cs, {ep});
    const {updateSpeechCredentialLastUsed} = require('../utils/db-utils')(this.logger, cs.srf);

+    this.fillerNoise = {
+      ...(cs.fillerNoise || {}),
+      ...(this.fillerNoise || {})
+    };
+
    if (cs.hasGlobalSttHints && !this.maskGlobalSttHints) {
      const {hints, hintsBoost} = cs.globalSttHints;
      const setOfHints = new Set((this.data.recognizer.hints || [])
@@ -134,6 +155,29 @@ class TaskGather extends SttTask {
      this.interim = true;
      this.logger.debug('Gather:exec - early hints match enabled');
    }
+    // actionHook delay
+    this._hookDelayEn = cs.actionHookDelayEnabled || !!this.actionHookDelayAction;
+
+    this._hookDelayActions = this.actionHookDelayAction?.actions || cs.actionHookDelayActions || [];
+
+    // Only enable NoResponseTimeout if there is _hookDelayActions
+    this._hookNoResponseTimeout = (this._hookDelayActions?.length ?
+      (this.actionHookDelayAction?.noResponseTimeout || cs.actionHookNoResponseTimeout || 0)
+      : 0) * 1000;
+
+    this._hookNoResponseGiveUpTimeout = (this.actionHookDelayAction?.noResponseGiveUpTimeout ||
+      cs.actionHookNoResponseGiveUpTimeout || 0) * 1000;
+
+    this._hookDelayRetries = this.actionHookDelayAction?.retries || cs.actionHookDelayRetries || 1;
+    this._hookDelayRetryCount = 0;
+    this.hookDelayActionOpts = {
+      enabled: this._hookDelayEn,
+      actions: this._hookDelayActions,
+      noResponseTimeoutMs: this._hookNoResponseTimeout,
+      noResponseGiveUpTimeoutMs: this._hookNoResponseGiveUpTimeout,
+      retries: this._hookDelayRetries
+    };
+
    const startListening = async(cs, ep) => {
      this._startTimer();
      if (this.isContinuousAsr && 0 === this.timeout) this._startAsrTimer();
@@ -227,6 +271,8 @@ class TaskGather extends SttTask {
  kill(cs) {
    super.kill(cs);
    this._killAudio(cs);
+    this._killActionHookDelayAction();
+    this._clearFillerNoiseTimer();
    this.ep.removeAllListeners('dtmf');
    clearTimeout(this.interDigitTimer);
    this._clearAsrTimer();
@@ -301,7 +347,7 @@ class TaskGather extends SttTask {
      if (this.data.recognizer?.deepgramOptions?.shortUtterance) this.shortUtterance = true;
    }

-    const opts = this.setChannelVarsForStt(this, this.sttCredentials, this.data.recognizer);
+    const opts = this.setChannelVarsForStt(this, this.sttCredentials, this.language, this.data.recognizer);
    switch (this.vendor) {
      case 'google':
        this.bugname = `${this.bugname_prefix}google_transcribe`;
@@ -351,9 +397,6 @@ class TaskGather extends SttTask {
        this.addCustomEventListener(ep, DeepgramTranscriptionEvents.Connect, this._onVendorConnect.bind(this, cs, ep));
        this.addCustomEventListener(ep, DeepgramTranscriptionEvents.ConnectFailure,
          this._onVendorConnectFailure.bind(this, cs, ep));
-
-        /* if app sets deepgramOptions.utteranceEndMs they essentially want continuous asr */
-        if (opts.DEEPGRAM_SPEECH_UTTERANCE_END_MS) this.isContinuousAsr = true;
        break;

      case 'soniox':
@@ -487,9 +530,8 @@ class TaskGather extends SttTask {
    this._clearTimer();
    this._timeoutTimer = setTimeout(() => {
      if (this.isContinuousAsr) this._startAsrTimer();
-      else if (this.interDigitTimeout <= 0 ||
-        this.digitBuffer.length < this.minDigits ||
-        this.needsStt && this.digitBuffer.length === 0) {
+      if (this.interDigitTimer) return; // let the inter-digit timer complete
+      else {
        this._resolve(this.digitBuffer.length >= this.minDigits ? 'dtmf-num-digits' : 'timeout');
      }
    }, this.timeout);
@@ -499,7 +541,9 @@ class TaskGather extends SttTask {
    if (this._timeoutTimer) {
      clearTimeout(this._timeoutTimer);
      this._timeoutTimer = null;
+      return true;
    }
+    return false;
  }

  _startAsrTimer() {
@@ -508,7 +552,7 @@ class TaskGather extends SttTask {
    this._clearAsrTimer();
    this._asrTimer = setTimeout(() => {
      this.logger.debug('_startAsrTimer - asr timer went off');
-      const evt = this.consolidateTranscripts(this._bufferedTranscripts, 1, this.language);
+      const evt = this.consolidateTranscripts(this._bufferedTranscripts, 1, this.language, this.vendor);
      this._resolve(this._bufferedTranscripts.length > 0 ? 'speech' : 'timeout', evt);
    }, this.asrTimeout);
    this.logger.debug(`_startAsrTimer: set for ${this.asrTimeout}ms`);
@@ -519,6 +563,104 @@ class TaskGather extends SttTask {
    this._asrTimer = null;
  }

+  _hangupCall() {
+    this.logger.debug('_hangupCall');
+    this.cs.hangup();
+  }
+
+  _actionHookDelaySayAction(verb) {
+    delete verb.verb;
+    this.logger.debug(`_actionHookDelaySayAction ${verb}`);
+    this._actionHookDelaySayTask = makeTask(this.logger, {say: verb}, this);
+    const {span, ctx} = this.startChildSpan(`actionHookDelayAction:${this._actionHookDelaySayTask.summary}`);
+    this._actionHookDelaySayTask.span = span;
+    this._actionHookDelaySayTask.ctx = ctx;
+    this._actionHookDelaySayTask.exec(this.cs, {ep: this.ep});
+    this._actionHookDelaySayTask.on('playDone', (err) => {
+      this._actionHookDelaySayTask = null;
+      span.end();
+      if (err) this.logger.error({err}, 'Gather:actionHookDelay Error playing tts');
+    });
+  }
+
+  _killActionHookDelayAction() {
+    this.logger.debug('_killActionHookDelayAction');
+    if (this._actionHookDelaySayTask && !this._actionHookDelaySayTask.killed) {
+      this._actionHookDelaySayTask.removeAllListeners('playDone');
+      this._actionHookDelaySayTask.kill(this.cs);
+      this._actionHookDelaySayTask.span.end();
+      this._actionHookDelaySayTask = null;
+    }
+
+    if (this._actionHookDelayPlayTask && !this._actionHookDelayPlayTask.killed) {
+      this._actionHookDelayPlayTask.removeAllListeners('playDone');
+      this._actionHookDelayPlayTask.kill(this.cs);
+      this._actionHookDelayPlayTask.span.end();
+      this._actionHookDelayPlayTask = null;
+    }
+  }
+
+  _actionHookDelayPlayAction(verb) {
+    delete verb.verb;
+    this.logger.debug(`_actionHookDelayPlayAction ${verb}`);
+    this._actionHookDelayPlayTask = makeTask(this.logger, {play: verb}, this);
+    const {span, ctx} = this.startChildSpan(`actionHookDelayAction:${this._actionHookDelayPlayTask.summary}`);
+    this._actionHookDelayPlayTask.span = span;
+    this._actionHookDelayPlayTask.ctx = ctx;
+    this._actionHookDelayPlayTask.exec(this.cs, {ep: this.ep});
+    this._actionHookDelayPlayTask.on('playDone', (err) => {
+      this._actionHookDelayPlayTask = null;
+      span.end();
+      if (err) this.logger.error({err}, 'Gather:actionHookDelay Error playing tts');
+    });
+
+  }
+
+  _startActionHookNoResponseTimer() {
+    assert(this._hookNoResponseTimeout > 0);
+    this._clearActionHookNoResponseTimer();
+    this.logger.debug('startActionHookNoResponseTimer');
+    this._actionHookNoResponseTimer = setTimeout(() => {
+      if (this._hookDelayRetryCount >= this._hookDelayRetries) {
+        this._hangupCall();
+        return;
+      }
+      const verb = this._hookDelayActions[this._hookDelayRetryCount % this._hookDelayActions.length];
+      if (verb.verb === 'say') {
+        this._actionHookDelaySayAction(verb);
+      } else if (verb.verb === 'play') {
+        this._actionHookDelayPlayAction(verb);
+      }
+      this._hookDelayRetryCount++;
+      this._startActionHookNoResponseTimer();
+
+    }, this._hookNoResponseTimeout);
+
+  }
+
+  _clearActionHookNoResponseTimer() {
+    if (this._actionHookNoResponseTimer) {
+      clearTimeout(this._actionHookNoResponseTimer);
+    }
+    this._actionHookNoResponseTimer = null;
+  }
+
+  _startActionHookNoResponseGiveUpTimer() {
+    assert(this._hookNoResponseGiveUpTimeout > 0);
+    this._clearActionHookNoResponseGiveUpTimer();
+    this.logger.debug('startActionHookNoResponseGiveUpTimer');
+    this._actionHookNoResponseGiveUpTimer = setTimeout(() => {
+      this._hangupCall();
+    }, this._hookNoResponseGiveUpTimeout);
+  }
+
+  _clearActionHookNoResponseGiveUpTimer() {
+    if (this._actionHookNoResponseGiveUpTimer) {
+      clearTimeout(this._actionHookNoResponseGiveUpTimer);
+    }
+    this._actionHookNoResponseGiveUpTimer = null;
+  }
+
  _startFastRecognitionTimer(evt) {
    assert(this.fastRecognitionTimeout > 0);
    this._clearFastRecognitionTimer();
@@ -539,7 +681,7 @@ class TaskGather extends SttTask {
    this._clearFinalAsrTimer();
    this._finalAsrTimer = setTimeout(() => {
      this.logger.debug('_startFinalAsrTimer - final asr timer went off');
-      const evt = this.consolidateTranscripts(this._bufferedTranscripts, 1, this.language);
+      const evt = this.consolidateTranscripts(this._bufferedTranscripts, 1, this.language, this.vendor);
      this._resolve(this._bufferedTranscripts.length > 0 ? 'speech' : 'timeout', evt);
    }, 1000);
    this.logger.debug('_startFinalAsrTimer: set for 1 second');
@@ -550,9 +692,29 @@ class TaskGather extends SttTask {
    this._finalAsrTimer = null;
  }

+  _startFillerNoiseTimer() {
+    this._clearFillerNoiseTimer();
+    this._fillerNoiseTimer = setTimeout(() => {
+      this.logger.debug('Gather:_startFillerNoiseTimer - playing filler noise');
+      this.ep?.play(this.fillerNoise.url);
+    }, this.fillerNoise.startDelaySecs * 1000);
+  }
+
+  _clearFillerNoiseTimer() {
+    if (this._fillerNoiseTimer) clearTimeout(this._fillerNoiseTimer);
+    this._fillerNoiseTimer = null;
+  }
+
+  _killFillerNoise() {
+    if (this._fillerNoiseTimer) {
+      this.logger.debug('Gather:_killFillerNoise');
+      this.ep?.api('uuid_break', this.ep.uuid);
+    }
+  }
+
  _killAudio(cs) {
-    if (!this.sayTask && !this.playTask && this.bargein) {
-      if (this.ep?.connected && !this.playComplete) {
+    if (this.hasFillerNoise || (!this.sayTask && !this.playTask && this.bargein)) {
+      if (this.ep?.connected && (!this.playComplete || this.hasFillerNoise)) {
        this.logger.debug('Gather:_killAudio: killing playback of any audio');
        this.playComplete = true;
        this.ep.api('uuid_break', this.ep.uuid)
@@ -576,11 +738,10 @@ class TaskGather extends SttTask {
    // make sure this is not a transcript from answering machine detection
    const bugname = fsEvent.getHeader('media-bugname');
    const finished = fsEvent.getHeader('transcription-session-finished');
-    this.logger.debug({evt, bugname, finished}, `Gather:_onTranscription for vendor ${this.vendor}`);
+    this.logger.debug({evt, bugname, finished, vendor: this.vendor}, 'Gather:_onTranscription raw transcript');
    if (bugname && this.bugname !== bugname) return;

    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 */
      if (this._bufferedTranscripts.length === 0) {
@@ -588,15 +749,21 @@ class TaskGather extends SttTask {
      }
      else {
        this.logger.debug('Gather:_onTranscription - got UtteranceEnd event from deepgram, return buffered transcript');
-        evt = this.consolidateTranscripts(this._bufferedTranscripts, 1, this.language);
+        evt = this.consolidateTranscripts(this._bufferedTranscripts, 1, this.language, this.vendor);
        this._bufferedTranscripts = [];
        this._resolve('speech', evt);
      }
      return;
    }
+    if (this.vendor === 'deepgram' && evt.type === 'Metadata') {
+      this.logger.debug('Gather:_onTranscription - discarding Metadata event from deepgram');
+      return;
+    }

    evt = this.normalizeTranscription(evt, this.vendor, 1, this.language,
      this.shortUtterance, this.data.recognizer.punctuation);
+    //this.logger.debug({evt, bugname, finished, vendor: this.vendor}, 'Gather:_onTranscription normalized transcript');
+
    if (evt.alternatives.length === 0) {
      this.logger.info({evt}, 'TaskGather:_onTranscription - got empty transcript, continue listening');
      return;
@@ -622,7 +789,9 @@ class TaskGather extends SttTask {
    if (evt.is_final) {
      if (evt.alternatives[0].transcript === '' && !this.callSession.callGone && !this.killed) {
        emptyTranscript = true;
-        if (finished === 'true' && ['microsoft', 'deepgram'].includes(this.vendor)) {
+        if (finished === 'true' &&
+          ['microsoft', 'deepgram'].includes(this.vendor) &&
+          this._bufferedTranscripts.length === 0) {
          this.logger.debug({evt}, 'TaskGather:_onTranscription - got empty transcript from old gather, disregarding');
          return;
        }
@@ -656,7 +825,7 @@ class TaskGather extends SttTask {
        this._clearTimer();
        if (this._finalAsrTimer) {
          this._clearFinalAsrTimer();
-          const evt = this.consolidateTranscripts(this._bufferedTranscripts, 1, this.language);
+          const evt = this.consolidateTranscripts(this._bufferedTranscripts, 1, this.language, this.vendor);
          return this._resolve(this._bufferedTranscripts.length > 0 ? 'speech' : 'timeout', evt);
        }
        this._startAsrTimer();
@@ -668,8 +837,8 @@ class TaskGather extends SttTask {
        if (this.bargein && (words + bufferedWords) < this.minBargeinWordCount) {
          this.logger.debug({evt, words, bufferedWords},
            'TaskGather:_onTranscription - final transcript but < min barge words');
-          this._bufferedTranscripts.push(evt);
-          this._startTranscribing(ep);
+          if (!emptyTranscript) this._bufferedTranscripts.push(evt);
+          if (!['soniox', 'aws', 'microsoft', 'deepgram'].includes(this.vendor)) this._startTranscribing(ep);
          return;
        }
        else {
@@ -682,14 +851,11 @@ class TaskGather extends SttTask {
          else if (this.vendor === 'deepgram') {
            /* compile transcripts into one */
            if (!emptyTranscript) this._bufferedTranscripts.push(evt);
-            if (this.data.recognizer?.deepgramOptions?.utteranceEndMs) {
-              this.logger.debug('TaskGather:_onTranscription - got speech_final waiting for UtteranceEnd event');
-              return;
-            }
-            this.logger.debug({evt}, 'TaskGather:_onTranscription - compiling deepgram transcripts');
-            evt = this.consolidateTranscripts(this._bufferedTranscripts, 1, this.language);
+
+            /* deepgram can send an empty and final transcript; only if we have any buffered should we resolve */
+            if (this._bufferedTranscripts.length === 0) return;
+            evt = this.consolidateTranscripts(this._bufferedTranscripts, 1, this.language, this.vendor);
            this._bufferedTranscripts = [];
-            this.logger.debug({evt}, 'TaskGather:_onTranscription - compiled deepgram transcripts');
          }

          /* here is where we return a final transcript */
@@ -698,14 +864,26 @@ class TaskGather extends SttTask {
      }
    }
    else {
-      this._clearTimer();
-      this._startTimer();
-      if (this.bargein && (words + bufferedWords) >= this.minBargeinWordCount) {
-        if (!this.playComplete) {
-          this.logger.debug({transcript: evt.alternatives[0].transcript}, 'killing audio due to speech');
-          this.emit('vad');
+      /* deepgram can send a non-final transcript but with words that are final, so we need to buffer */
+      let emptyTranscript = false;
+      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');
+          this._bufferedTranscripts.push(evt);
+        }
+        if (evt.alternatives[0].transcript === '') emptyTranscript = true;
+      }
+
+      if (!emptyTranscript) {
+        if (this._clearTimer()) this._startTimer();
+        if (this.bargein && (words + bufferedWords) >= this.minBargeinWordCount) {
+          if (!this.playComplete) {
+            this.logger.debug({transcript: evt.alternatives[0].transcript}, 'killing audio due to speech');
+            this.emit('vad');
+          }
+          this._killAudio(cs);
        }
-        this._killAudio(cs);
      }
      if (this.fastRecognitionTimeout) {
        this._startFastRecognitionTimer(evt);
@@ -723,14 +901,6 @@ class TaskGather extends SttTask {
          this._sonioxTranscripts.push(evt.vendor.finalWords);
        }
      }
-      /* 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');
-          this._bufferedTranscripts.push(evt);
-        }
-      }
    }
  }
  _onEndOfUtterance(cs, ep) {
@@ -763,6 +933,10 @@ class TaskGather extends SttTask {
    this.logger.debug('TaskGather:_onTranscriptionComplete');
  }
  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;
+    }
    this.logger.info({evt}, 'TaskGather:_onJambonzError');
    if (this.isHandledByPrimaryProvider && this.fallbackVendor) {
      ep.stopTranscription({
@@ -835,10 +1009,11 @@ class TaskGather extends SttTask {
    if (this.resolved) return;

    this.resolved = true;
-    // Clear dtmf event
-    if (this.dtmfBargein) {
-      this.ep.removeAllListeners('dtmf');
-    }
+    // If bargin is false and ws application return ack to verb:hook
+    // the gather should not play any audio
+    this._killAudio(this.cs);
+    // Clear dtmf events, to avoid any case can leak the listener, just clean it
+    this.ep.removeAllListeners('dtmf');
    clearTimeout(this.interDigitTimer);
    this._clearTimer();
    this._clearFastRecognitionTimer();
@@ -862,6 +1037,25 @@ class TaskGather extends SttTask {
      return;
    }

+    // Enabled action Hook delay timer to applied actions
+    if (this._hookNoResponseTimeout > 0) {
+      this._startActionHookNoResponseTimer();
+    }
+
+    if (this._hookNoResponseGiveUpTimeout > 0) {
+      this._startActionHookNoResponseGiveUpTimer();
+    }
+
+    if (this.hasFillerNoise && (reason.startsWith('dtmf') || reason.startsWith('speech'))) {
+      if (this.fillerNoiseStartDelaySecs > 0) {
+        this._startFillerNoiseTimer();
+      }
+      else {
+        this.logger.debug(`TaskGather:_resolve - playing filler noise: ${this.fillerNoiseUrl}`);
+        this.ep.play(this.fillerNoiseUrl);
+      }
+    }
+
    try {
      if (reason.startsWith('dtmf')) {
        if (this.parentTask) this.parentTask.emit('dtmf', evt);
@@ -892,6 +1086,12 @@ class TaskGather extends SttTask {
        }
      }
    } catch (err) {  /*already logged error*/ }
+
+    // Gather got response from hook, cancel all delay timers if there is any
+    this._clearActionHookNoResponseTimer();
+    this._clearActionHookNoResponseGiveUpTimer();
+    this._clearFillerNoiseTimer();
+
    this.notifyTaskDone();
  }
 }
--- a/lib/tasks/listen.js
+++ b/lib/tasks/listen.js
@@ -8,6 +8,10 @@ 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;

@@ -25,6 +29,15 @@ 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);
  }
@@ -123,8 +136,6 @@ 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
@@ -135,7 +146,8 @@ class TaskListen extends Task {
      mixType: this.mixType,
      sampling: this.sampleRate,
      ...(this._bugname && {bugname: this._bugname}),
-      metadata
+      metadata,
+      bidirectionalAudio: this.bidirectionalAudio || {}
    });
    this.recordStartTime = moment();
    if (this.maxLength) {
@@ -155,7 +167,7 @@ class TaskListen extends Task {
    }

    /* support bi-directional audio */
-    if (!this.disableBidirectionalAudio) {
+    if (this.bidirectionalAudio.enabled) {
      ep.addCustomEventListener(ListenEvents.PlayAudio, this._onPlayAudio.bind(this, ep));
    }
    ep.addCustomEventListener(ListenEvents.KillAudio, this._onKillAudio.bind(this, ep));
--- a/lib/tasks/make_task.js
+++ b/lib/tasks/make_task.js
@@ -14,6 +14,9 @@ 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);
@@ -41,6 +44,9 @@ 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);
--- a/lib/tasks/say.js
+++ b/lib/tasks/say.js
@@ -1,4 +1,4 @@
-const Task = require('./task');
+const TtsTask = require('./tts-task');
 const {TaskName, TaskPreconditions} = require('../utils/constants');
 const pollySSMLSplit = require('polly-ssml-split');

@@ -23,9 +23,15 @@ const breakLengthyTextIfNeeded = (logger,  text) => {
  }
 };

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

    this.text = (Array.isArray(this.data.text) ? this.data.text : [this.data.text])
@@ -33,10 +39,6 @@ class TaskSay extends Task {
      .flat();

    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;
  }

@@ -50,138 +52,12 @@ class TaskSay extends Task {
    return `${this.name}{${this.text[0]}}`;
  }

-  _validateURL(urlString) {
-    try {
-      new URL(urlString);
-      return true;
-    } catch (e) {
-      return false;
-    }
-  }
-
-  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;
-
-    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];
-      }
-    } 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;
-    }
-
-    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;
-
-      /* 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 */
-        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,
-            options: this.options,
-            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;
-        }
-      };
-
-      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;
-    }
-
-  }
-
  async exec(cs, {ep}) {
+    const {srf, accountSid:account_sid} = cs;
+    const {writeAlerts, AlertType} = srf.locals;
+    const {addFileToCache} = srf.locals.dbHelpers;
+    const engine = this.synthesizer.engine || 'standard';
+
    await super.exec(cs);
    this.ep = ep;

@@ -231,16 +107,55 @@ class TaskSay extends Task {
    }
    this.notifyStatus({event: 'start-playback'});

-    while (!this.killed && (this.loop === 'forever' || this.loop--) && this.ep?.connected) {
+    while (!this.killed && (this.loop === 'forever' || this.loop--) && ep?.connected) {
      let segment = 0;
      while (!this.killed && segment < filepath.length) {
        if (cs.isInConference) {
          const {memberId, confName, confUuid} = cs;
-          await this.playToConfMember(this.ep, memberId, confName, confUuid, filepath[segment]);
+          await this.playToConfMember(ep, memberId, confName, confUuid, filepath[segment]);
        }
        else {
-          this.logger.debug(`Say:exec sending command to play file ${filepath[segment]}`);
+          if (filepath[segment].startsWith('say:{')) {
+            const arr = /^say:\{.*\}\s*(.*)$/.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  ${filepath[segment].substring(0, 64)}`);
+          ep.once('playback-start', (evt) => {
+            this.logger.debug({evt}, 'got playback-start');
+            if (this.otelSpan) {
+              this._addStreamingTtsAttributes(this.otelSpan, evt);
+              this.otelSpan.end();
+              this.otelSpan = null;
+              if (evt.variable_tts_cache_filename) cs.trackTmpFile(evt.variable_tts_cache_filename);
+            }
+          });
+          ep.once('playback-stop', (evt) => {
+            this.logger.debug({evt}, 'got playback-stop');
+            if (evt.variable_tts_error) {
+              writeAlerts({
+                account_sid,
+                alert_type: AlertType.TTS_FAILURE,
+                vendor,
+                detail: evt.variable_tts_error
+              }).catch((err) => this.logger.info({err}, 'Error generating alert for no tts'));
+            }
+            if (evt.variable_tts_cache_filename) {
+              const text = parseTextFromSayString(this.text[segment]);
+              addFileToCache(evt.variable_tts_cache_filename, {
+                account_sid,
+                vendor,
+                language,
+                voice,
+                engine,
+                text
+              }).catch((err) => this.logger.info({err}, 'Error adding file to cache'));
+            }
+          });
          await ep.play(filepath[segment]);
+          if (filepath[segment].startsWith('say:{')) {
+            const arr = /^say:\{.*\}\s*(.*)$/.exec(filepath[segment]);
+            if (arr) this.logger.debug(`Say:exec complete playing streaming tts request: ${arr[1].substring(0, 64)}..`);
+          }
          this.logger.debug(`Say:exec completed play file ${filepath[segment]}`);
        }
        segment++;
@@ -251,7 +166,7 @@ class TaskSay extends Task {

  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;
@@ -261,8 +176,68 @@ class TaskSay extends Task {
        this.notifyStatus({event: 'kill-playback'});
        this.ep.api('uuid_break', this.ep.uuid);
      }
+      this.ep.removeAllListeners('playback-start');
+      this.ep.removeAllListeners('playback-stop');
    }
  }
+
+  _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('rimelabs_', 'rimelabs.')
+          .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);
+  }
 }

+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',
+  // Rimelabs
+  'rimelabs.name_lookup_time_ms': 'name_lookup_ms',
+  'rimelabs.connect_time_ms': 'connect_ms',
+  'rimelabs.final_response_time_ms': 'final_response_ms',
+};
+
 module.exports = TaskSay;
--- a/lib/tasks/stt-task.js
+++ b/lib/tasks/stt-task.js
@@ -56,24 +56,20 @@ class SttTask extends Task {
    super.exec(cs);
    this.ep = ep;
    this.ep2 = ep2;
-    // copy all value from config verb to this object.
+
+    // use session preferences if we don't have specific verb-level settings.
    if (cs.recognizer) {
      for (const k in cs.recognizer) {
-        if (Array.isArray(this.data.recognizer[k]) ||
-        Array.isArray(cs.recognizer[k])) {
-          this.data.recognizer[k] = [
-            ...this.data.recognizer[k],
-            ...cs.recognizer[k]
-          ];
-        } else if (typeof this.data.recognizer[k] === 'object' ||
-        typeof cs.recognizer[k] === 'object'
-        ) {
-          this.data.recognizer[k] = {
-            ...this.data.recognizer[k],
-            ...cs.recognizer[k]
-          };
+        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] = cs.recognizer[k] || this.data.recognizer[k];
+          this.data.recognizer[k] = newValue;
        }
      }
    }
@@ -110,7 +106,12 @@ class SttTask extends Task {
      this.data.recognizer.model = cs.speechRecognizerLanguage;
    }

-    if (!this.sttCredentials) {
+    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) {
--- a/lib/tasks/task.js
+++ b/lib/tasks/task.js
@@ -160,14 +160,31 @@ 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});
-        span.end();
+        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);
+          }
+        }
        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);
          }
        }
--- a/lib/tasks/transcribe.js
+++ b/lib/tasks/transcribe.js
@@ -31,6 +31,25 @@ 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
@@ -39,12 +58,21 @@ class TaskTranscribe extends SttTask {
      this.isContinuousAsr = true;
    }
    /* buffer speech for continuous asr */
-    this._bufferedTranscripts = [];
+    this._bufferedTranscripts = [ [], [] ];  // for channel 1 and 2
    this.bugname_prefix = 'transcribe_';
+    this.paused = false;
  }

  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, {ep, ep2}) {
    await super.exec(cs, {ep, ep2});

@@ -67,8 +95,10 @@ class TaskTranscribe extends SttTask {
    }

    try {
-      await this._startTranscribing(cs, ep, 1);
-      if (this.separateRecognitionPerChannel && ep2) {
+      if (this.transcribing1) {
+        await this._startTranscribing(cs, ep, 1);
+      }
+      if (this.transcribing2) {
        await this._startTranscribing(cs, ep2, 2);
      }

@@ -85,7 +115,7 @@ class TaskTranscribe extends SttTask {

  async _stopTranscription() {
    let stopTranscription = false;
-    if (this.ep?.connected) {
+    if (this.transcribing1 && this.ep?.connected) {
      stopTranscription = true;
      this.ep.stopTranscription({
        vendor: this.vendor,
@@ -93,9 +123,9 @@ class TaskTranscribe extends SttTask {
      })
        .catch((err) => this.logger.info(err, 'Error TaskTranscribe:kill'));
    }
-    if (this.separateRecognitionPerChannel && this.ep2 && this.ep2.connected) {
+    if (this.transcribing2 && this.ep2.connected) {
      stopTranscription = true;
-      this.ep2.stopTranscription({vendor: this.vendor})
+      this.ep2.stopTranscription({vendor: this.vendor, bugname: this.bugname})
        .catch((err) => this.logger.info(err, 'Error TaskTranscribe:kill'));
    }

@@ -117,13 +147,13 @@ 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:
-          await this._startTranscribing(this.cs, this.ep, 1);
-          if (this.separateRecognitionPerChannel && this.ep2) {
-            await this._startTranscribing(this.cs, this.ep2, 2);
-          }
+          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);
          break;
      }
    }
@@ -138,7 +168,7 @@ class TaskTranscribe extends SttTask {
      if (this.isContinuousAsr) this._doContinuousAsrWithDeepgram(this.asrTimeout);
    }

-    const opts = this.setChannelVarsForStt(this, this.sttCredentials, this.data.recognizer);
+    const opts = this.setChannelVarsForStt(this, this.sttCredentials, this.language, this.data.recognizer);
    switch (this.vendor) {
      case 'google':
        this.bugname = `${this.bugname_prefix}google_transcribe`;
@@ -286,7 +316,7 @@ class TaskTranscribe extends SttTask {
      vendor: this.vendor,
      interim: this.interim ? true : false,
      locale: this.language,
-      channels: /*this.separateRecognitionPerChannel ? 2 : */ 1,
+      channels: 1,
      bugname: this.bugname,
      hostport: this.hostport
    });
@@ -295,20 +325,26 @@ 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 */
-      if (this._bufferedTranscripts.length === 0) {
+      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(this._bufferedTranscripts, 1, this.language);
-        this._bufferedTranscripts = [];
-        this._resolve('speech', evt);
+        evt = this.consolidateTranscripts(bufferedTranscripts, channel, this.language, this.vendor);
+        evt.is_final = true;
+        this._bufferedTranscripts[channel - 1] = [];
+        this._resolve(channel, evt);
      }
      return;
    }
@@ -322,31 +358,89 @@ class TaskTranscribe extends SttTask {
      return;
    }

-    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');
+    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']
+          .includes(this.vendor)) this._startTranscribing(cs, ep, channel);
      }
      else {
-        this.logger.info({evt}, 'TaskTranscribe:_onTranscription - got empty transcript, listen again');
-        this._transcribe(ep);
-      }
-      return;
-    }
+        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);

-    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 = [];
+          /* 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']
+          .includes(this.vendor)) this._startTranscribing(cs, ep, channel);
      }
    }
+    else {
+      /* interim transcript */

-    if (this.isContinuousAsr && evt.is_final) {
-      this._bufferedTranscripts.push(evt);
-      this._startAsrTimer(channel);
-    } else {
-      await this._resolve(channel, evt);
+      /* 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);
+      }
    }
  }

@@ -399,7 +493,8 @@ class TaskTranscribe extends SttTask {
  }

  _onNoAudio(cs, ep, channel) {
-    this.logger.debug(`TaskTranscribe:_onNoAudio restarting transcription on channel ${channel}`);
+    this.logger.debug(`TaskTranscribe:_onNoAudio on channel ${channel}`);
+    if (this.paused) return;
    if (this.childSpan[channel - 1] && this.childSpan[channel - 1].span) {
      this.childSpan[channel - 1].span.setAttributes({
        channel,
@@ -415,7 +510,8 @@ class TaskTranscribe extends SttTask {
  }

  _onMaxDurationExceeded(cs, ep, channel) {
-    this.logger.debug(`TaskTranscribe:_onMaxDurationExceeded restarting transcription on channel ${channel}`);
+    this.logger.debug(`TaskTranscribe:_onMaxDurationExceeded on channel ${channel}`);
+    if (this.paused) return;
    if (this.childSpan[channel - 1] && this.childSpan[channel - 1].span) {
      this.childSpan[channel - 1].span.setAttributes({
        channel,
@@ -439,7 +535,12 @@ class TaskTranscribe extends SttTask {
  }

  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;
+    }
    this.logger.info({evt}, 'TaskTranscribe:_onJambonzError');
+    if (this.paused) return;
    if (this.isHandledByPrimaryProvider && this.fallbackVendor) {
      _ep.stopTranscription({
        vendor: this.vendor,
@@ -464,6 +565,7 @@ class TaskTranscribe extends SttTask {

      if (this.vendor === 'nuance') {
        const {code, error} = evt;
+        //TODO: fix below, currently _resolve does not send timeout events
        if (code === 404 && error === 'No speech') return this._resolve('timeout');
        if (code === 413 && error === 'Too much speech') return this._resolve('timeout');
      }
@@ -496,8 +598,9 @@ class TaskTranscribe extends SttTask {
    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, this.language);
-      this._bufferedTranscripts = [];
+      const evt = this.consolidateTranscripts(
+        this._bufferedTranscripts[channel - 1], channel, this.language, this.vendor);
+      this._bufferedTranscripts[channel - 1] = [];
      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
@@ -0,0 +1,183 @@
+const Task = require('./task');
+const { TaskPreconditions } = require('../utils/constants');
+
+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);
+    this.synthesizer = this.data.synthesizer || {};
+    this.disableTtsCache = this.data.disableTtsCache;
+    this.options = this.synthesizer.options || {};
+  }
+
+  async exec(cs) {
+    super.exec(cs);
+  }
+
+  async _synthesizeWithSpecificVendor(cs, ep, {
+    vendor,
+    language,
+    voice,
+    label,
+    disableTtsStreaming,
+    preCache
+  }) {
+    const {srf, accountSid:account_sid} = 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;
+
+    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];
+      }
+    } 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;
+    }
+
+    ep.set({
+      tts_engine: vendor,
+      tts_voice: voice,
+      cache_speech_handles: 1,
+      ...(vendor === 'google' && {
+        GOOGLE_TTS_APPLICATION_CREDENTIALS: JSON.stringify(credentials.credentials)
+      })
+    }).catch((err) => this.logger.info({err}, `${this.name}: Error setting tts_engine on endpoint`));
+
+    if (!preCache) this.logger.info({vendor, language, voice, model}, `${this.name}:exec`);
+    try {
+      if (!credentials) {
+        writeAlerts({
+          account_sid,
+          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;
+
+      /* 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.parentTask)  {
+          const {span} = this.startChildSpan('tts-generation', {
+            'tts.vendor': vendor,
+            'tts.language': language,
+            'tts.voice': voice
+          });
+          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,
+            disableTtsStreaming,
+            preCache
+          });
+          if (!filePath.startsWith('say:')) {
+            this.logger.debug(`file ${filePath}, served from cache ${servedFromCache}`);
+            if (filePath) cs.trackTmpFile(filePath);
+            if (this.otelSpan) {
+              this.otelSpan.setAttributes({'tts.cached': servedFromCache});
+              this.otelSpan.end();
+              this.otelSpan = null;
+            }
+            if (!servedFromCache && !lastUpdated) {
+              lastUpdated = true;
+              updateSpeechCredentialLastUsed(credentials.speech_credential_sid).catch(() => {/* logged error */});
+            }
+            if (!servedFromCache && rtt && !preCache) {
+              this.notifyStatus({
+                event: 'synthesized-audio',
+                vendor,
+                language,
+                characters: text.length,
+                elapsedTime: rtt
+              });
+            }
+          }
+          else {
+            this.logger.debug('a streaming tts api will be used');
+            const modifiedPath = filePath.replace('say:{', `say:{session-uuid=${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
+          }).catch((err) => this.logger.info({err}, 'Error generating alert for tts failure'));
+          this.notifyError({msg: 'TTS error', details: err.message || err});
+          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/amd-utils.js
+++ b/lib/utils/amd-utils.js
@@ -266,7 +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, {
+    const sttOpts = amd.setChannelVarsForStt({name: TaskName.Gather}, sttCredentials, language, {
      vendor,
      hints,
      enhancedModel: true,
--- a/lib/utils/background-task-manager.js
+++ b/lib/utils/background-task-manager.js
@@ -26,25 +26,25 @@ class BackgroundTaskManager extends Emitter {
    return this.tasks.size;
  }

-  async newTask(type, taskOpts) {
-    this.logger.info({taskOpts}, `initiating Background task ${type}`);
+  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, skiped`);
+      this.logger.info(`Background task ${type} is running, skipped`);
      return;
    }
    let task;
    switch (type) {
      case 'listen':
-        task = await this._initListen(taskOpts);
+        task = await this._initListen(opts);
        break;
      case 'bargeIn':
-        task = await this._initBargeIn(taskOpts);
+        task = await this._initBargeIn(opts);
        break;
      case 'record':
        task = await this._initRecord();
        break;
      case 'transcribe':
-        task = await this._initTranscribe(taskOpts);
+        task = await this._initTranscribe(opts);
        break;
      default:
        break;
@@ -52,6 +52,7 @@ class BackgroundTaskManager extends Emitter {
    if (task) {
      this.tasks.set(type, task);
    }
+    if (task && sticky) task.sticky = true;
    return task;
  }

@@ -64,19 +65,16 @@ class BackgroundTaskManager extends Emitter {
      task.kill();
      // Remove task from managed List
      this.tasks.delete(type);
-    } else {
-      this.logger.info(`stopping background task, ${type} is not running, skipped`);
    }
  }

  stopAll() {
-    this.logger.info('BackgroundTaskManager:stopAll');
+    this.logger.debug('BackgroundTaskManager:stopAll');
    for (const key of this.tasks.keys()) {
      this.stop(key);
    }
  }

-  // Initiate Task
  // Initiate Listen
  async _initListen(opts, bugname = 'jambonz-background-listen', ignoreCustomerData = false, type = 'listen') {
    let task;
@@ -119,7 +117,7 @@ class BackgroundTaskManager extends Emitter {
          this._taskCompleted('bargeIn', task);
          if (task.sticky && !this.cs.callGone && !this.cs._stopping) {
            this.logger.info('BackgroundTaskManager:_initBargeIn: restarting background bargeIn');
-            this.newTask('bargeIn', opts);
+            this.newTask('bargeIn', opts, true);
          }
          return;
        })
@@ -134,8 +132,7 @@ class BackgroundTaskManager extends Emitter {
  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 configuration,
- missing JAMBONZ_RECORD_WS_BASE_URL or bucket configuration`);
+        this.logger.error('_initRecord: invalid cfg - missing JAMBONZ_RECORD_WS_BASE_URL or bucket config');
        return undefined;
      }
      const listenOpts = {
@@ -176,7 +173,7 @@ class BackgroundTaskManager extends Emitter {
  }

  _taskCompleted(type, task) {
-    this.logger.info({type, task}, 'BackgroundTaskManager:_taskCompleted: task completed');
+    this.logger.debug({type, task}, `BackgroundTaskManager:_taskCompleted: task completed, sticky: ${task.sticky}`);
    task.removeAllListeners();
    task.span.end();
    this.tasks.delete(type);
@@ -189,7 +186,8 @@ class BackgroundTaskManager extends Emitter {
  }

  _bargeInTaskCompleted(evt) {
-    this.logger.info({evt}, 'BackgroundTaskManager:_bargeInTaskCompleted on event from background bargeIn');
+    this.logger.debug({evt},
+      'BackgroundTaskManager:_bargeInTaskCompleted on event from background bargeIn, emitting bargein-done event');
    this.emit('bargeIn-done', evt);
  }
 }
--- a/lib/utils/constants.json
+++ b/lib/utils/constants.json
@@ -1,12 +1,13 @@
 {
  "TaskName": {
-    "Cognigy": "cognigy",
+    "Answer": "answer",
    "Conference": "conference",
    "Config": "config",
    "Dequeue": "dequeue",
    "Dial": "dial",
    "Dialogflow": "dialogflow",
    "Dtmf": "dtmf",
+    "Dub": "dub",
    "Enqueue": "enqueue",
    "Gather": "gather",
    "Hangup": "hangup",
@@ -29,7 +30,8 @@
    "Tag": "tag",
    "Transcribe": "transcribe"
  },
-  "AllowedSipRecVerbs": ["config", "gather", "transcribe", "listen", "tag"],
+  "AllowedSipRecVerbs": ["answer", "config", "gather", "transcribe", "listen", "tag"],
+  "AllowedConfirmSessionVerbs": ["config", "gather", "plays", "say", "tag"],
  "CallStatus": {
    "Trying": "trying",
    "Ringing": "ringing",
@@ -169,6 +171,7 @@
    "session:new",
    "session:reconnect",
    "session:redirect",
+    "session:adulting",
    "call:status",
    "queue:status",
    "dial:confirm",
--- a/lib/utils/db-utils.js
+++ b/lib/utils/db-utils.js
@@ -75,6 +75,8 @@ 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_stt_use_tls = o.deepgram_stt_use_tls;
    }
    else if ('soniox' === obj.vendor) {
      const o = JSON.parse(decrypt(credential));
@@ -92,6 +94,17 @@ const speechMapper = (cred) => {
      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 ('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;
--- a/lib/utils/install-srf-locals.js
+++ b/lib/utils/install-srf-locals.js
@@ -176,6 +176,7 @@ function installSrfLocals(srf, logger) {
  const registrar = new Registrar(logger, client);
  const {
    synthAudio,
+    addFileToCache,
    getNuanceAccessToken,
    getIbmAccessToken,
  } = require('@jambonz/speech-utils')({}, logger);
@@ -215,6 +216,7 @@ function installSrfLocals(srf, logger) {
      listCalls,
      deleteCall,
      synthAudio,
+      addFileToCache,
      createHash,
      retrieveHash,
      deleteKey,
--- a/lib/utils/parse-decibels.js
+++ b/lib/utils/parse-decibels.js
@@ -0,0 +1,18 @@
+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
@@ -16,9 +16,13 @@ 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
+} = require('../config');

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

@@ -41,6 +45,7 @@ class SingleDialer extends Emitter {

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

    this.on('callStatusChange', this._notifyCallStatusChange.bind(this));
  }
@@ -131,6 +136,7 @@ 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}`);

      /**
@@ -189,6 +195,10 @@ 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,
@@ -253,7 +263,7 @@ class SingleDialer extends Emitter {
        .on('modify', async(req, res) => {
          try {
            if (this.ep) {
-              if (this.dialTask && this.dialTask.isOnHold) {
+              if (this.dialTask && this.dialTask.isOnHoldEnabled) {
                this.logger.info('dial is onhold, emit event');
                this.emit('reinvite', req, res);
              } else {
@@ -285,17 +295,17 @@ 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();
@@ -320,6 +330,16 @@ class SingleDialer extends Emitter {
    }
  }

+  _configMsEndpoint() {
+    const opts = {
+      ...(this.onHoldMusic && {holdMusic: `shout://${this.onHoldMusic.replace(/^https?:\/\//, '')}`}),
+      ...(JAMBONES_USE_FREESWITCH_TIMER_FD && {timer_name: 'timerfd'})
+    };
+    if (Object.keys(opts).length > 0) {
+      this.ep.set(opts);
+    }
+  }
+
  /**
   * Run an application on the call after answer, e.g. call screening.
   * Once the application completes in some fashion, emit an 'accepted' event
@@ -333,6 +353,7 @@ class SingleDialer extends Emitter {
      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));
@@ -392,6 +413,7 @@ class SingleDialer extends Emitter {
    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;
@@ -406,6 +428,8 @@ class SingleDialer extends Emitter {
        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,
@@ -415,6 +439,13 @@ class SingleDialer extends Emitter {
      tasks,
      rootSpan
    });
+    app.requestor.request('session:adulting', '/adulting', {
+      ...cs.callInfo.toJSON(),
+      parentCallInfo: this.parentCallInfo
+    }).catch((err) => {
+      newLogger.error({err}, 'doAdulting: error sending adulting request');
+    });
+
    cs.req = this.req;
    cs.exec().catch((err) => newLogger.error({err}, 'doAdulting: error executing session'));
    return cs;
@@ -436,6 +467,7 @@ class SingleDialer extends Emitter {
  async reAnchorMedia() {
    assert(this.dlg && this.dlg.connected && !this.ep);
    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'
@@ -466,11 +498,12 @@ class SingleDialer extends Emitter {
 }

 function placeOutdial({
-  logger, srf, ms, sbcAddress, target, opts, application, callInfo, accountInfo, rootSpan, startSpan, dialTask
+  logger, srf, ms, sbcAddress, target, opts, application, callInfo, accountInfo, rootSpan, startSpan, dialTask,
+  onHoldMusic
 }) {
  const myOpts = deepcopy(opts);
  const sd = new SingleDialer({
-    logger, sbcAddress, target, myOpts, application, callInfo, accountInfo, rootSpan, startSpan, dialTask
+    logger, sbcAddress, target, myOpts, application, callInfo, accountInfo, rootSpan, startSpan, dialTask, onHoldMusic
  });
  sd.exec(srf, ms, myOpts);
  return sd;
--- a/lib/utils/transcription-utils.js
+++ b/lib/utils/transcription-utils.js
@@ -102,7 +102,55 @@ const stickyVars = {
  ]
 };

-const consolidateTranscripts = (bufferedTranscripts, channel, language) => {
+/**
+ * @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 consolidateTranscripts = (bufferedTranscripts, channel, language, vendor) => {
  if (bufferedTranscripts.length === 1) return bufferedTranscripts[0];
  let totalConfidence = 0;
  const finalTranscript = bufferedTranscripts.reduce((acc, evt) => {
@@ -143,7 +191,7 @@ const consolidateTranscripts = (bufferedTranscripts, channel, language) => {
    totalConfidence / bufferedTranscripts.length;
  finalTranscript.alternatives[0].transcript = finalTranscript.alternatives[0].transcript.trim();
  finalTranscript.vendor = {
-    name: 'deepgram',
+    name: vendor,
    evt: bufferedTranscripts
  };
  return finalTranscript;
@@ -222,7 +270,7 @@ const normalizeDeepgram = (evt, channel, language, shortUtterance) => {
    language_code: language,
    channel_tag: channel,
    is_final: shortUtterance ? evt.is_final : evt.speech_final,
-    alternatives: [alternatives[0]],
+    alternatives: alternatives.length ? [alternatives[0]] : [],
    vendor: {
      name: 'deepgram',
      evt: copy
@@ -424,7 +472,7 @@ module.exports = (logger) => {
    }
  };

-  const setChannelVarsForStt = (task, sttCredentials, rOpts = {}) => {
+  const setChannelVarsForStt = (task, sttCredentials, language, rOpts = {}) => {
    let opts = {};
    const {enable, voiceMs = 0, mode = -1} = rOpts.vad || {};
    const vad = {enable, voiceMs, mode};
@@ -439,7 +487,10 @@ module.exports = (logger) => {
    };

    if ('google' === vendor) {
-      const model = task.name === TaskName.Gather ? 'command_and_search' : 'latest_long';
+      const useV2 = rOpts.googleOptions?.serviceVersion === 'v2';
+      const model = task.name === TaskName.Gather ?
+        (useV2 ? 'telephony_short' : 'command_and_search') :
+        (useV2 ? 'long' : 'latest_long');
      opts = {
        ...opts,
        ...(sttCredentials && {GOOGLE_APPLICATION_CREDENTIALS: JSON.stringify(sttCredentials.credentials)}),
@@ -472,6 +523,26 @@ module.exports = (logger) => {
        ...{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)) {
@@ -510,12 +581,17 @@ module.exports = (logger) => {
        ...{AZURE_USE_OUTPUT_FORMAT_DETAILED: 1},
        ...(azureOptions.speechSegmentationSilenceTimeoutMs &&
          {AZURE_SPEECH_SEGMENTATION_SILENCE_TIMEOUT_MS: azureOptions.speechSegmentationSilenceTimeoutMs}),
+        ...(azureOptions.languageIdMode &&
+          {AZURE_LANGUAGE_ID_MODE: azureOptions.languageIdMode}),
        ...(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) {
@@ -567,15 +643,24 @@ 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) &&
@@ -605,7 +690,9 @@ module.exports = (logger) => {
        ...(deepgramOptions.keywords) &&
          {DEEPGRAM_SPEECH_KEYWORDS: deepgramOptions.keywords.join(',')},
        ...('endpointing' in deepgramOptions) &&
-          {DEEPGRAM_SPEECH_ENDPOINTING: deepgramOptions.endpointing === false ? 'false' : deepgramOptions.endpointing},
+          {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},
        ...(deepgramOptions.vadTurnoff) &&
--- a/lib/utils/ws-requestor.js
+++ b/lib/utils/ws-requestor.js
@@ -119,7 +119,7 @@ class WsRequestor extends BaseRequestor {
      type,
      msgid,
      call_sid: this.call_sid,
-      hook: type === 'verb:hook' ? url : undefined,
+      hook: ['verb:hook', 'session:redirect'].includes(type) ? url : undefined,
      data: {...payload},
      ...b3
    };
@@ -326,7 +326,9 @@ class WsRequestor extends BaseRequestor {
          'WsRequestor:_onSocketClosed time to reconnect');
        if (!this.ws && !this.connectInProgress) {
          this.connectInProgress = true;
-          this._connect().catch((err) => this.connectInProgress = false);
+          return this._connect()
+            .catch((err) => this.logger.error('WsRequestor:_onSocketClosed There is error while reconnect', err))
+            .finally(() => this.connectInProgress = false);
        }
      }, this.backoffMs);
      this.backoffMs = this.backoffMs < 2000 ? this.backoffMs * 2 : (this.backoffMs + 2000);
@@ -344,7 +346,9 @@ class WsRequestor extends BaseRequestor {
    /* messages must be JSON format */
    try {
      const obj = JSON.parse(content);
-      const {type, msgid, command, call_sid = this.call_sid, queueCommand = false, data} = obj;
+      //const {type, msgid, command, call_sid = this.call_sid, queueCommand = false, data} = obj;
+      const {type, msgid, command, queueCommand = false, data} = obj;
+      const call_sid = obj.callSid || this.call_sid;

      //this.logger.debug({obj}, 'WsRequestor:request websocket: received');
      assert.ok(type, 'type property not supplied');
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -1,9 +1,9 @@
 {
  "name": "jambonz-feature-server",
-  "version": "0.8.5",
+  "version": "0.9.0",
  "main": "app.js",
  "engines": {
-    "node": ">= 10.16.0"
+    "node": ">= 18.x"
  },
  "keywords": [
    "sip",
@@ -25,57 +25,57 @@
    "jslint:fix": "eslint app.js tracer.js lib --fix"
  },
  "dependencies": {
-    "@aws-sdk/client-auto-scaling": "^3.360.0",
-    "@aws-sdk/client-sns": "^3.360.0",
-    "@jambonz/db-helpers": "^0.9.1",
+    "@aws-sdk/client-auto-scaling": "^3.549.0",
+    "@aws-sdk/client-sns": "^3.549.0",
+    "@jambonz/db-helpers": "^0.9.3",
    "@jambonz/http-health-check": "^0.0.1",
-    "@jambonz/mw-registrar": "^0.2.4",
-    "@jambonz/realtimedb-helpers": "^0.8.7",
-    "@jambonz/speech-utils": "^0.0.33",
+    "@jambonz/mw-registrar": "^0.2.7",
+    "@jambonz/realtimedb-helpers": "^0.8.8",
+    "@jambonz/speech-utils": "^0.0.51",
    "@jambonz/stats-collector": "^0.1.9",
    "@jambonz/time-series": "^0.2.8",
-    "@jambonz/verb-specifications": "^0.0.50",
-    "@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",
+    "@jambonz/verb-specifications": "^0.0.69",
+    "@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",
    "bent": "^7.3.12",
    "debug": "^4.3.4",
    "deepcopy": "^2.1.0",
-    "drachtio-fsmrf": "^3.0.33",
+    "drachtio-fsmrf": "^3.0.40",
    "drachtio-srf": "^4.5.31",
-    "express": "^4.18.2",
+    "express": "^4.19.2",
    "express-validator": "^7.0.1",
-    "ip": "^1.1.8",
-    "moment": "^2.29.4",
-    "parse-url": "^8.1.0",
-    "pino": "^8.8.0",
+    "ip": "^2.0.1",
+    "moment": "^2.30.1",
+    "parse-url": "^9.2.0",
+    "pino": "^8.20.0",
    "polly-ssml-split": "^0.1.0",
    "proxyquire": "^2.1.3",
-    "sdp-transform": "^2.14.1",
+    "sdp-transform": "^2.14.2",
    "short-uuid": "^4.2.2",
-    "sinon": "^15.0.1",
+    "sinon": "^17.0.1",
    "to-snake-case": "^1.0.0",
-    "undici": "^5.26.2",
+    "undici": "^6.11.1",
    "uuid-random": "^1.3.2",
    "verify-aws-sns-signature": "^0.1.0",
-    "ws": "^8.9.0",
+    "ws": "^8.16.0",
    "xml2js": "^0.6.2"
  },
  "devDependencies": {
    "clear-module": "^4.1.2",
-    "eslint": "^7.32.0",
-    "eslint-plugin-promise": "^4.3.1",
+    "eslint": "7.32.0",
+    "eslint-plugin-promise": "^6.1.1",
    "nyc": "^15.1.0",
-    "tape": "^5.6.1"
+    "tape": "^5.7.5"
  },
  "optionalDependencies": {
-    "bufferutil": "^4.0.6",
-    "utf-8-validate": "^5.0.8"
+    "bufferutil": "^4.0.8",
+    "utf-8-validate": "^6.0.3"
  }
 }
--- 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:0.8.24
+    image: drachtio/drachtio-server:0.8.25-rc8
    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:0.6.1
+    image: drachtio/drachtio-freeswitch-mrf:0.7.3
    restart: always
    command: freeswitch --rtp-range-start 20000 --rtp-range-end 20100
    environment:
--- a/test/transcribe-tests.js
+++ b/test/transcribe-tests.js
@@ -347,8 +347,7 @@ test('\'transcribe\' test - deepgram config options altLanguages', async(t) => {
            "en-US"
          ],
          "deepgramOptions": {
-            "model": "2-ea",
-            "tier": "nova",
+            "model": "nova-2",
            "numerals": true,
            "ner": true,
            "vadTurnoff": 10,
@@ -408,8 +407,7 @@ test('\'transcribe\' test - deepgram config options altLanguages', async(t) => {
            "en-US"
          ],
          "deepgramOptions": {
-            "model": "2-ea",
-            "tier": "nova",
+            "model": "nova-2",
            "numerals": true,
            "ner": true,
            "vadTurnoff": 10,
Author	SHA1	Message	Date
Quan HL	b7f6c5b20c	wip	2024-04-17 23:11:03 +07:00
Quan HL	ad5df4b7f7	support google tts mod	2024-04-17 22:09:55 +07:00
Dave Horton	bd002ede48	ignore google errors with error_code 0	2024-04-16 20:06:26 -04:00
Dave Horton	1a2aa91973	proper fix for precache (#721 ) * proper fix for precache * wip	2024-04-15 16:25:12 -04:00
Dave Horton	e322b7d8d3	be more cautious about pre-caching prompts; in particular, a Config verb will not give us time to precache so avoid in that scenario (#720 )	2024-04-15 15:38:10 -04:00
Hoan Luu Huu	7da11df88e	default DEEPGRAM_SPEECH_UTTERANCE_END_MS is 1000 (#719 )	2024-04-14 19:39:07 -04:00
Hoan Luu Huu	09cf1345f6	tts span for whisper (#718 ) * tts span for whisper * support deepgram tts span * support playht tts span * support rimelabs tts span * wip	2024-04-14 09:14:49 -04:00
Dave Horton	2595f527ff	gather: fix bug where empty deepgram transcript saved incorrectly	2024-04-13 09:59:02 -04:00
Dave Horton	1d77c0cd20	bugfx: bargein after first when config bargein with sticky=true fails	2024-04-12 20:08:21 -04:00
Hoan Luu Huu	9eab81268b	support mod_rimelabs_tts (#716 ) * support mod_rimelabs_tts * update speech utils	2024-04-12 07:28:45 -04:00
Dave Horton	ecf3d140d6	fix #714 (#715 )	2024-04-10 16:23:22 -04:00
Hoan Luu Huu	4a52be9171	support mod_playht_tts (#711 ) * support mod_playht_tts * update speech utils version	2024-04-08 10:21:54 -04:00
Dave Horton	9b722ae36d	update deps (#709 ) * update deps * version	2024-04-07 18:22:31 -04:00
Dave Horton	370b046fac	update to speech utils with azure 1.36.0	2024-04-07 12:16:35 -04:00
Hoan Luu Huu	fca391c32e	support listen verb support bidirectionalAudioSampleRate (#695 ) * support listen verb support bidirectionalAudioSampleRate * ưip * update verb spec and drachtio fsmrf * fix listen failing testcase * fix review comment * update freeswitch test image * update freeswitch teset image --------- Co-authored-by: Dave Horton <daveh@beachdognet.com>	2024-04-06 13:20:01 -04:00
Dave Horton	043860c4a3	update to speech utils supporting deepgram tts (#708 )	2024-04-06 12:35:03 -04:00
Dave Horton	a021ee3112	update unidici (#707 )	2024-04-05 17:23:21 -04:00
Dave Horton	8999c85a71	Fixes/ws testing dh (#704 ) * fixes from testing with translator app * more updates * linting * update gh actions to node 20 * add support for google v2 preconfigured recognizer * add support for google voice activity events * update to speech-utils@0.0.45 * update speech-utils to support caching azure tts * transcribe must buffer transcripts for channel 1 and 2 separately * further fix for accumulating transcripts * linting * deepgram sends transcripts with empty alternatives array * fix deepgram returning an empty array	2024-04-03 14:30:49 -04:00
Hoan Luu Huu	72147a8110	support google v2 enableVoiceActivityEvents (#703 ) * support google v2 enableVoiceActivityEvents * support google v2 enableVoiceActivityEvents	2024-04-02 10:14:54 -04:00
Hoan Luu Huu	93d0e41e31	support google version 2 (#699 ) * support google version 2 * update new parameters for google v2	2024-04-02 07:33:22 -04:00
Hoan Luu Huu	5b1d8a8ff3	Feat/ambient sounds (#678 ) * initial support for coaching mode in conference * wip * wip * add support for answer verb * wip * wip * wip * wip * wip * updates to rename option to dub * wip * wip * wip * update verb-specs * wip * wip * wip * wip * wip * wip * wip * wip * add option to boost audio signal in main channel * wip * wip * wip * wip * wip * wip * for now, bypass use of streaming apis when generating tts audio for dub tracks * add nested dub to dial * wip * add support for filler noise * kill filler noise when gather killed * wip * wip * while using sayOnTrack, we have to enclose the say command in double quotes * disableTtsStreaming = false * allow transcribe of b leg only on dial verb * dub.say can either be text or object like say verb with text and synthesizer * remove loop for sayOnTrack * update speech-utils * fixes for testing transcribe verb and support for dub and boostAudioSignal in lcc commands * add dial.boostAudioSignal * fix bug where session-level recognizer settings incorrectly overwrite verb-level settings * update verb specs * update dial to support array of dub verbs * fix bug setting gain * lint * wip * update speech-utils * use new endpoint methods for mod_dub --------- Co-authored-by: Dave Horton <daveh@beachdognet.com>	2024-03-23 16:23:57 -04:00
Dave Horton	ec58232b61	Fix/replace application issue (#692 ) * fix scenario where ws replace application from gather while awaiting command and no tasks on execution stack * lint * remove some debug logging	2024-03-23 16:14:16 -04:00
Hoan Luu Huu	65c241bcd1	gather verb should clean dtmf listerner even dtmfBargein=false (#686 )	2024-03-23 16:01:41 -04:00
Hoan Luu Huu	75b6f89e0c	add log to get more detail for AMD issue (#687 ) * add log to check issue * update drachtio-fsmrf 3.0.38	2024-03-21 09:14:32 -04:00
Hoan Luu Huu	b80d39d205	fix asrtimer always return vendor=deepgram (#682 )	2024-03-13 12:57:55 -04:00
Hoan Luu Huu	40f70e3531	update speech utils version 0.0.63 (#681 )	2024-03-12 09:12:18 -04:00
Hoan Luu Huu	1914b88af9	support azure language id mode (#674 )	2024-03-12 08:35:01 -04:00
Hoan Luu Huu	c946a5d14d	fix actionHookDelay feature is not working properly if there is no de… (#679 ) * fix actionHookDelayAction when no actions is defnied * terminated by jambonz for giveuptimeout	2024-03-12 08:33:03 -04:00
Hoan Luu Huu	878578fe0f	Fix/issue 676 (#680 ) * fix bargin is not working * fix bargin is not working	2024-03-11 08:46:38 -04:00
Hoan Luu Huu	9b3be6c0b9	allow custom header on pause, resume recording (#670 ) * allow custom header on pause, resume recording * fix review comments	2024-03-05 18:01:32 -05:00
Hoan Luu Huu	4ae661daea	remove unnecessary code for cleanup disableBotMode (#673 )	2024-03-04 18:03:32 -05:00
Dave Horton	dbd3b59901	fix #666	2024-02-26 09:39:49 -05:00
Hoan Luu Huu	06b066a3f2	update speech util to support whisper stream (#657 ) * update speech util to support whisper stream * minor editing of span attributes * more span attrs cleanup --------- Co-authored-by: Dave Horton <daveh@beachdognet.com>	2024-02-22 14:17:29 -05:00
Dave Horton	fc3655c9bd	fixes for confirm session (#663 ) * fixes for confirm session * allow empty dialconfirm array	2024-02-22 12:33:35 -05:00
dependabot[bot]	1b5f801830	Bump undici from 5.26.2 to 5.28.3 (#647 ) Bumps [undici](https://github.com/nodejs/undici) from 5.26.2 to 5.28.3. - [Release notes](https://github.com/nodejs/undici/releases) - [Commits](https://github.com/nodejs/undici/compare/v5.26.2...v5.28.3) --- updated-dependencies: - dependency-name: undici dependency-type: direct:production ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2024-02-22 10:13:19 -05:00
Dave Horton	d0ebe3f99f	fix possible undefined reference in precache audio (#662 ) * fix possible undefined reference in precache audio * fix parsing of JAMBONES_EAGERLY_PRE_CACHE_AUDIO	2024-02-22 07:58:41 -05:00
Dave Horton	51a379998f	fix #655 (#658 ) * fix #655 * fix race condition	2024-02-22 07:46:53 -05:00
dependabot[bot]	c2ae42a456	Bump ip from 1.1.8 to 1.1.9 (#660 ) Bumps [ip](https://github.com/indutny/node-ip) from 1.1.8 to 1.1.9. - [Commits](https://github.com/indutny/node-ip/compare/v1.1.8...v1.1.9) --- updated-dependencies: - dependency-name: ip dependency-type: direct:production ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2024-02-22 07:31:01 -05:00
Hoan Luu Huu	c187685054	feat actionHook delay action (#470 ) * feat actionHook delay action * wip * wip * wip * wip * wip * wip * wip * wip * wip * wip * wip * wip * wip	2024-02-20 21:09:19 -05:00
Hoan Luu Huu	81234a583c	support update record from application ws connection (#645 )	2024-02-19 07:53:39 -05:00
Hoan Luu Huu	206849fa25	create outbound dial from webhook ws (#581 ) * wip, create outbound dial from webhook ws * wip, create outbound dial from webhook ws * clean	2024-02-13 07:58:39 -05:00
Dave Horton	662b6d3d95	fix: elevenlabs caching with streaming	2024-02-12 21:08:41 -05:00
Anton Voylenko	5c070597cf	tag outdial session (#643 )	2024-02-12 13:16:43 -05:00
Dave Horton	42be9ff1ca	update to speech-utils with env to disable elevenlabs streaming (default is on)	2024-02-12 12:49:45 -05:00
Dave Horton	f0533c881b	deepgram gather: if both endpointing and utterance_end_ms are set (bu… (#644 ) * deepgram gather: if both endpointing and utterance_end_ms are set (but not continous asr) return either when we get speech_final or UtteranceEnd. This is the belt-and-suspenders apprach deepgram is recommending * include verb id in action hook if one was provided in the verb set * minor	2024-02-12 12:32:43 -05:00
Hoan Luu Huu	c894369a13	fix pause resume background transcribe (#586 ) * fix pause resume background transcribe * fix review comments	2024-02-12 10:38:07 -05:00
Dave Horton	565478cc0a	#573 address race condition in pause/resume recording (#584 )	2024-02-12 10:26:34 -05:00
Hoan Luu Huu	cdd25ca33d	Fix/gather timeout (#594 ) * fix gather verb timeout does not work * wip * wip * wip * wip * fix review comments	2024-02-12 10:13:02 -05:00
Markus Frindt	ef2306e558	Improve Deepgram default modely by language (#641 ) Co-authored-by: Markus Frindt <m.frindt@cognigy.com>	2024-02-12 09:53:14 -05:00
Dave Horton	9c33a790bd	update to latest speech-utils (#639 )	2024-02-08 15:54:45 -05:00
Dave Horton	9f9a9ec598	initial changes for deepgram on-prem (#636 ) * initial changes for deepgram on-prem * typo * fixes for selecting deepgram model * update some property names * wip * wip * wip	2024-02-07 14:21:05 -05:00
Dave Horton	75566bb268	bump to start 0.8.6	2024-02-07 08:51:05 -05:00
Hoan Luu Huu	a55f81676b	Tts/elevenlabs streaming (#629 ) * update to fsmrf with fix * changes to support elevenlabs tts streaming * say: add vendor data to span * bug: tts spans must include cached property * add env for JAMBONES_USE_FREESWITCH_TIMER_FD * fix bug in prev commit * wip * linting * wip - caching files generating by streaming tts * wip caching * cleanup some logs * handle tts streaming failure, write alert * update node version dependency * set timerfd on outbound call scenarios * default model to nova-2-phonecall when using deepgram --------- Co-authored-by: Dave Horton <daveh@beachdognet.com>	2024-02-07 08:49:36 -05:00
Hoan Luu Huu	48a81072e8	fix gather should not play audio if gather already resolved (#638 )	2024-02-06 07:42:44 -05:00
Hoan Luu Huu	74ede31cd3	fix ws reconnect does not send verb:hook data (#633 )	2024-01-31 07:20:57 -08:00
Anton Voylenko	048229f019	fix(dequeue): retrieve by callsid (#630 )	2024-01-31 07:06:08 -08:00
Hoan Luu Huu	71e266ae32	Merge pull request #632 from jambonz/fix/issue_631 fix default gather input is digits and gather dtmf should not require speech	2024-01-31 12:01:36 +07:00
Quan HL	5b607693dc	fix default gather input is digits and gather dtmf should not require speech	2024-01-31 11:46:29 +07:00
Dave Horton	0491c5ce25	minor logging changes	2024-01-27 12:59:23 -05:00
Vinod Dharashive	a7fa2f95dd	Change regex to have fqdn and IP (#625 )	2024-01-25 09:13:30 -05:00
Dave Horton	901e412343	fix bug where final transcript with finished header results in timeout (#624 )	2024-01-25 08:48:22 -05:00
Dave Horton	e57c7ba90a	fix for #627 (#628 )	2024-01-25 08:46:57 -05:00
Hoan Luu Huu	b867395d87	fix aldulting call does not send status callback when hhangup (#623 )	2024-01-23 07:12:43 -05:00
Hoan Luu Huu	1a80910f91	fix pause transcribe cannot close transcription on 2nd leg (#621 )	2024-01-18 11:21:25 -05:00
Hoan Luu Huu	5d4f25622d	fixed call hangup as call is await for new task and received ws command (#619 ) * fixed call hangup as call is await for new task and received ws command * wi	2024-01-18 11:12:50 -05:00
Dave Horton	aabf37e269	update db-helpers	2024-01-17 13:23:21 -05:00
Hoan Luu Huu	b45275789b	verbhook on ws connection should be ended in next redirect command (#616 ) * verbhook on ws connection should be ended in next redirect command * wip * wip * minor change for readability --------- Co-authored-by: Dave Horton <daveh@beachdognet.com>	2024-01-17 12:37:03 -05:00
Dave Horton	6d5ef6a215	gather: dont resolve if deepgram sends final/empty transcript with no transcripts previously buffered (#618 )	2024-01-17 10:59:37 -05:00
Hoan Luu Huu	b423a51638	feat: allow update azure endpoint ID from recognizer property (#612 )	2024-01-17 07:34:02 -05:00
Hoan Luu Huu	b4ff2ea702	fix onholdHOok (#540 ) * fix onholdHOok * wip * wip * wip * wip * adding more debug log * wip * wip * wip	2024-01-15 08:34:45 -05:00
Dave Horton	f22d66dfd6	set default deepgram model by language and task (gather vs transcribe) (#610 ) * set default deepgram model by language and task (gather vs transcribe) * wip	2024-01-14 10:38:14 -05:00
Dave Horton	09a83e3a31	Feature/precache audio (#609 ) * wip * fix for establishing vendor etc * more fixes * avoid a pre-caching attempt if synth settings change	2024-01-13 12:51:25 -05:00