Update call-session.js

fix #1025 (#1026 )
* fix #1025 * redirect verb should be able to redirect to a new websocket endpoint
2026-03-30 03:49:10 +00:00 · 2025-01-10 13:56:43 +00:00 · 2025-01-09 15:45:20 -05:00 · 2025-01-08 18:29:43 -05:00 · 2025-01-07 12:21:09 -05:00 · 2025-01-04 16:38:25 -05:00
41 changed files with 1972 additions and 209 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -42,4 +42,5 @@ ecosystem.config.js
 test/credentials/*.json
 run-tests.sh
 run-coverage.sh
-.vscode
+.vscode
+.env
--- a/2
+++ b/2
@@ -1,4 +1,4 @@
-FROM --platform=linux/amd64 node:18.15-alpine3.16 as base
+FROM --platform=linux/amd64 node:20-alpine as base

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

--- a/app.js
+++ b/app.js
@@ -25,10 +25,22 @@ const opts = {
 };
 const pino = require('pino');
 const logger = pino(opts, pino.destination({sync: false}));
-const {LifeCycleEvents, FS_UUID_SET_NAME} = require('./lib/utils/constants');
+const {LifeCycleEvents, FS_UUID_SET_NAME, SystemState, FEATURE_SERVER} = require('./lib/utils/constants');
 const installSrfLocals = require('./lib/utils/install-srf-locals');
 installSrfLocals(srf, logger);

+const writeSystemAlerts = srf.locals?.writeSystemAlerts;
+if (writeSystemAlerts) {
+  writeSystemAlerts({
+    system_component: FEATURE_SERVER,
+    state : SystemState.Online,
+    fields : {
+      detail: `feature-server with process_id ${process.pid} started`,
+      host: srf.locals?.ipv4
+    }
+  });
+}
+
 const {
  initLocals,
  createRootSpan,
@@ -100,12 +112,19 @@ createHttpListener(logger, srf)
  });


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

@@ -117,13 +136,25 @@ const disconnect = () => {
    srf.locals.mediaservers?.forEach((ms) => ms.disconnect());
  });
 };
-
 process.on('SIGTERM', handle);
+process.on('SIGINT', handle);

-function handle(signal) {
+async function handle(signal) {
  const {removeFromSet} = srf.locals.dbHelpers;
  srf.locals.disabled = true;
  logger.info(`got signal ${signal}`);
+  const writeSystemAlerts = srf.locals?.writeSystemAlerts;
+  if (writeSystemAlerts) {
+    // it has to be synchronous call, or else by the time system saves the app terminates
+    await writeSystemAlerts({
+      system_component: FEATURE_SERVER,
+      state : SystemState.Offline,
+      fields : {
+        detail: `feature-server with process_id ${process.pid} stopped, signal ${signal}`,
+        host: srf.locals?.ipv4
+      }
+    });
+  }
  const setName = `${(JAMBONES_CLUSTER_ID || 'default')}:active-fs`;
  const fsServiceUrlSetName = `${(JAMBONES_CLUSTER_ID || 'default')}:fs-service-url`;
  if (setName && srf.locals.localSipAddress) {
--- a/lib/config.js
+++ b/lib/config.js
@@ -137,6 +137,8 @@ const JAMBONES_EAGERLY_PRE_CACHE_AUDIO = parseInt(process.env.JAMBONES_EAGERLY_P

 const JAMBONES_USE_FREESWITCH_TIMER_FD = process.env.JAMBONES_USE_FREESWITCH_TIMER_FD;
 const JAMBONES_DIAL_SBC_FOR_REGISTERED_USER = process.env.JAMBONES_DIAL_SBC_FOR_REGISTERED_USER || false;
+const JAMBONES_MEDIA_TIMEOUT_MS = process.env.JAMBONES_MEDIA_TIMEOUT_MS || 0;
+const JAMBONES_MEDIA_HOLD_TIMEOUT_MS = process.env.JAMBONES_MEDIA_HOLD_TIMEOUT_MS || 0;

 module.exports = {
  JAMBONES_MYSQL_HOST,
@@ -223,5 +225,7 @@ module.exports = {
  JAMBONZ_DISABLE_DIAL_PAI_HEADER,
  JAMBONES_DISABLE_DIRECT_P2P_CALL,
  JAMBONES_USE_FREESWITCH_TIMER_FD,
-  JAMBONES_DIAL_SBC_FOR_REGISTERED_USER
+  JAMBONES_DIAL_SBC_FOR_REGISTERED_USER,
+  JAMBONES_MEDIA_TIMEOUT_MS,
+  JAMBONES_MEDIA_HOLD_TIMEOUT_MS
 };
--- a/lib/http-routes/api/create-call.js
+++ b/lib/http-routes/api/create-call.js
@@ -208,10 +208,13 @@ router.post('/',

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

      /**
     * attach our requestor and notifier objects
--- a/lib/session/adulting-call-session.js
+++ b/lib/session/adulting-call-session.js
@@ -45,8 +45,10 @@ class AdultingCallSession extends CallSession {
    return this.sd.ep;
  }

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

  get callSid() {
    return this.callInfo.callSid;
--- a/lib/session/call-session.js
+++ b/lib/session/call-session.js
@@ -2,13 +2,15 @@ const Emitter = require('events');
 const fs = require('fs');
 const {
  CallDirection,
+  MediaPath,
  TaskPreconditions,
  CallStatus,
  TaskName,
  KillReason,
  RecordState,
  AllowedSipRecVerbs,
-  AllowedConfirmSessionVerbs
+  AllowedConfirmSessionVerbs,
+  TtsStreamingEvents
 } = require('../utils/constants');
 const moment = require('moment');
 const assert = require('assert');
@@ -20,18 +22,22 @@ const listTaskNames = require('../utils/summarize-tasks');
 const HttpRequestor = require('../utils/http-requestor');
 const WsRequestor = require('../utils/ws-requestor');
 const ActionHookDelayProcessor = require('../utils/action-hook-delay');
+const TtsStreamingBuffer = require('../utils/tts-streaming-buffer');
 const {parseUri} = require('drachtio-srf');
 const {
  JAMBONES_INJECT_CONTENT,
  JAMBONES_EAGERLY_PRE_CACHE_AUDIO,
  AWS_REGION,
-  JAMBONES_USE_FREESWITCH_TIMER_FD
+  JAMBONES_USE_FREESWITCH_TIMER_FD,
+  JAMBONES_MEDIA_TIMEOUT_MS,
+  JAMBONES_MEDIA_HOLD_TIMEOUT_MS
 } = require('../config');
 const bent = require('bent');
 const BackgroundTaskManager = require('../utils/background-task-manager');
+const dbUtils = require('../utils/db-utils');
 const BADPRECONDITIONS = 'preconditions not met';
 const CALLER_CANCELLED_ERR_MSG = 'Response not sent due to unknown transaction';
-
+const { NonFatalTaskError} = require('../utils/error');
 const sqlRetrieveQueueEventHook = `SELECT * FROM webhooks 
 WHERE webhook_sid = 
 (
@@ -398,33 +404,41 @@ class CallSession extends Emitter {
    return this.application.transferredCall === true;
  }

+  /**
+   * returns true if this session is an inbound call session
+   */
+  get isInboundCallSession() {
+    return this.constructor.name === 'InboundCallSession';
+  }
+
  /**
   * returns true if this session is a ConfirmCallSession
   */
  get isAdultingCallSession() {
    return this.constructor.name === 'AdultingCallSession';
  }
-
-  /**
-   * returns true if this session is a ConfirmCallSession
-   */
  get isConfirmCallSession() {
    return this.constructor.name === 'ConfirmCallSession';
  }
-
-  /**
-   * returns true if this session is a SipRecCallSession
-   */
  get isSipRecCallSession() {
    return this.constructor.name === 'SipRecCallSession';
  }
-
-  /**
-   * returns true if this session is a SmsCallSession
-   */
  get isSmsCallSession() {
    return this.constructor.name === 'SmsCallSession';
  }
+  get isRestCallSession() {
+    return this.constructor.name === 'RestCallSession';
+  }
+  get InboundCallSession() {
+    return this.constructor.name === 'InboundCallSession';
+  }
+  get isNormalCallSession() {
+    return this.constructor.name === 'InboundCallSession' || this.constructor.name === 'RestCallSession';
+  }
+
+  get is3pccInvite() {
+    return this.isInboundCallSession && this.req?.body?.length === 0;
+  }

  get webhook_secret() {
    return this.accountInfo?.account?.webhook_secret;
@@ -438,6 +452,10 @@ class CallSession extends Emitter {
    return this.backgroundTaskManager.isTaskRunning('bargeIn');
  }

+  get isTtsStreamEnabled() {
+    return this.backgroundTaskManager.isTaskRunning('ttsStream');
+  }
+
  get isListenEnabled() {
    return this.backgroundTaskManager.isTaskRunning('listen');
  }
@@ -500,6 +518,10 @@ class CallSession extends Emitter {
    this._sipRequestWithinDialogHook = url;
  }

+  get isTtsStreamOpen() {
+    return this.currentTask?.isStreamingTts ||
+      this.backgroundTaskManager.getTask('ttsStream')?.isStreamingTts;
+  }
  // Bot Delay (actionHook delayed)
  get actionHookDelayEnabled() {
    return this._actionHookDelayEnabled;
@@ -550,7 +572,18 @@ class CallSession extends Emitter {
        this._actionHookDelayProcessor = new ActionHookDelayProcessor(this.logger, opts, this, this.ep);
        this._actionHookDelayProcessor.on('giveup', () => {
          this.logger.info('CallSession: ActionHookDelayProcessor: giveup event - hanging up call');
-          this._jambonzHangup();
+          const {writeAlerts} = this.srf.locals;
+          try {
+            writeAlerts({
+              alert_type: 'bot-action-delay-giveup',
+              account_sid: this.accountSid,
+              message: 'Call terminated due to bot action delay timeout',
+              target_sid: this.callSid
+            });
+          } catch (err) {
+            this.logger.error({err}, 'Error writing bot-action-delay-giveup alert');
+          }
+          this._jambonzHangup('bot-action-delay-giveup');
          if (this.wakeupResolver) {
            this.logger.debug('CallSession: Giveup timer expired - waking up');
            this.wakeupResolver({reason: 'noResponseGiveUp'});
@@ -574,6 +607,25 @@ class CallSession extends Emitter {
    }
  }

+  getTsStreamingVendor() {
+    let v;
+    if (this.currentTask?.isStreamingTts) {
+      const {vendor} = this.currentTask.getTtsVendorData(this);
+      v = vendor;
+    }
+    else if (this.backgroundTaskManager.getTask('ttsStream')?.isStreamingTts) {
+      const {vendor} = this.backgroundTaskManager.getTask('ttsStream').getTtsVendorData(this);
+      v = vendor;
+    }
+    return v;
+  }
+
+  get appIsUsingWebsockets() {
+    return this.requestor instanceof WsRequestor;
+  }
+
+  /* end of getters and setters */
+
  async clearOrRestoreActionHookDelayProcessor() {
    if (this._actionHookDelayProcessor) {
      await this._actionHookDelayProcessor.stop();
@@ -791,6 +843,38 @@ class CallSession extends Emitter {
    }
  }

+  async enableBackgroundTtsStream(say) {
+    try {
+      if (this.isTtsStreamEnabled) {
+        this.logger.debug('CallSession:enableBackgroundTtsStream - ttsStream currently enabled, ignoring request');
+      } else if (this.appIsUsingWebsockets && this.isNormalCallSession) {
+        await this.backgroundTaskManager.newTask('ttsStream', say);
+        this.logger.debug('CallSession:enableBackgroundTtsStream - ttsStream enabled');
+      } else {
+        this.logger.debug(
+          'CallSession:enableBackgroundTtsStream - ignoring request as call does not have required conditions');
+      }
+    }  catch (err) {
+      this.logger.info({err, say}, 'CallSession:enableBackgroundTtsStream - Error creating background tts stream task');
+    }
+  }
+
+  disableTtsStream() {
+    if (this.isTtsStreamEnabled) {
+      this.backgroundTaskManager.stop('ttsStream');
+      this.logger.debug('CallSession:disableTtsStream - ttsStream disabled');
+    }
+  }
+  clearTtsStream() {
+    this.requestor?.request('tts:streaming-event', '/streaming-event', {event_type: 'user_interruption'})
+      .catch((err) => this.logger.info({err}, 'CallSession:clearTtsStream - Error sending user_interruption'));
+    this.ttsStreamingBuffer?.clear();
+  }
+
+  startTtsStream() {
+    this.ttsStreamingBuffer?.start();
+  }
+
  async enableBotMode(gather, autoEnable) {
    try {
      let task;
@@ -979,6 +1063,14 @@ class CallSession extends Emitter {
            options: credential.options
          };
        }
+        else if ('cartesia' === vendor) {
+          return {
+            api_key: credential.api_key,
+            model_id: credential.model_id,
+            embedding: credential.embedding,
+            options: credential.options
+          };
+        }
        else if ('rimelabs' === vendor) {
          return {
            api_key: credential.api_key,
@@ -1040,6 +1132,27 @@ class CallSession extends Emitter {
  async exec() {
    this.logger.info({tasks: listTaskNames(this.tasks)}, `CallSession:exec starting ${this.tasks.length} tasks`);

+    // calculate if inbandDTMF tone is used
+    const voip_carrier_sid = this.req?.has('X-Voip-Carrier-Sid') ? this.req.get('X-Voip-Carrier-Sid') :
+      this.req?.has('X-Requested-Carrier-Sid') ? this.req.get('X-Requested-Carrier-Sid') : null;
+
+    if (voip_carrier_sid) {
+      const {lookupVoipCarrierBySid} = dbUtils(this.logger, this.srf);
+      const [voipCarrier] = await lookupVoipCarrierBySid(voip_carrier_sid);
+      this.inbandDtmfEnabled = voipCarrier?.dtmf_type === 'tones';
+    }
+
+    if (this.isNormalCallSession) {
+      this.ttsStreamingBuffer = new TtsStreamingBuffer(this);
+      this.ttsStreamingBuffer.on(TtsStreamingEvents.Empty, this._onTtsStreamingEmpty.bind(this));
+      this.ttsStreamingBuffer.on(TtsStreamingEvents.Pause, this._onTtsStreamingPause.bind(this));
+      this.ttsStreamingBuffer.on(TtsStreamingEvents.Resume, this._onTtsStreamingResume.bind(this));
+      this.ttsStreamingBuffer.on(TtsStreamingEvents.ConnectFailure, this._onTtsStreamingConnectFailure.bind(this));
+    }
+    else {
+      this.logger.info(`CallSession:exec - not a normal call session: ${this.constructor.name}`);
+    }
+
    while (this.tasks.length && !this.callGone) {
      const taskNum = ++this.taskIdx;
      const stackNum = this.stackIdx;
@@ -1080,6 +1193,8 @@ class CallSession extends Emitter {
        this.currentTask = null;
        if (err.message?.includes(BADPRECONDITIONS)) {
          this.logger.info(`CallSession:exec task #${stackNum}:${taskNum}: ${task.name}: ${err.message}`);
+        } else if (err instanceof NonFatalTaskError) {
+          this.logger.error(err, `Error executing task  #${stackNum}:${taskNum}: ${task.name}`);
        }
        else {
          this.logger.error(err, `Error executing task  #${stackNum}:${taskNum}: ${task.name}`);
@@ -1172,6 +1287,11 @@ class CallSession extends Emitter {
      this.wakeupResolver({reason: 'session ended'});
      this.wakeupResolver = null;
    }
+
+    if (this._maxCallDurationTimer) {
+      clearTimeout(this._maxCallDurationTimer);
+      this._maxCallDurationTimer = null;
+    }
  }

  /**
@@ -1555,7 +1675,7 @@ Duration=${duration} `
    const t = normalizeJambones(this.logger, [
      {
        verb: 'dub',
-        ...opts
+        ...opts.dub
      }
    ])
      .map((tdata) => makeTask(this.logger, tdata));
@@ -1589,6 +1709,15 @@ Duration=${duration} `
    this.logger.info({response}, '_lccBoostAudioSignal: response from freeswitch');
  }

+  async _lccMediaPath(desiredPath) {
+    const task = this.currentTask;
+    if (!task || task.name !== TaskName.Dial) {
+      return this.logger.info('CallSession:_lccMediaPath - invalid command since we are not in a dial verb');
+    }
+    task.updateMediaPath(desiredPath)
+      .catch((err) => this.logger.error(err, 'CallSession:_lccMediaPath'));
+  }
+
  _lccToolOutput(tool_call_id, opts, callSid) {
    // only valid if we are in an LLM verb
    const task = this.currentTask;
@@ -1612,6 +1741,39 @@ Duration=${duration} `
      .catch((err) => this.logger.error(err, 'CallSession:_lccLlmUpdate'));
  }

+  async _lccTtsTokens(opts) {
+    const {id, tokens} = opts;
+
+    if (id === undefined) {
+      this.logger.info({opts}, 'CallSession:_lccTtsTokens - invalid command since id is missing');
+      return;
+    }
+    else if (tokens === undefined) {
+      this.logger.info({opts}, 'CallSession:_lccTtsTokens - invalid command since id is missing');
+      return this.requestor.request('tts:tokens-result', '/tokens-result', {
+        id,
+        status: 'failed',
+        reason: 'missing tokens'
+      }).catch((err) => this.logger.debug({err}, 'CallSession:_notifyTaskStatus - Error sending'));
+    }
+    let res;
+    try {
+      res = await this.ttsStreamingBuffer?.bufferTokens(tokens);
+      this.logger.info({id, res}, 'CallSession:_lccTtsTokens - tts:tokens-result');
+    } catch (err) {
+      this.logger.info(err, 'CallSession:_lccTtsTokens');
+    }
+    this.requestor.request('tts:tokens-result', '/tokens-result', {id, ...res})
+      .catch((err) => this.logger.debug({err}, 'CallSession:_notifyTaskStatus - Error sending'));
+  }
+
+  _lccTtsFlush(opts) {
+    this.ttsStreamingBuffer?.flush(opts);
+  }
+
+  _lccTtsClear(opts) {
+    this.ttsStreamingBuffer?.clear(opts);
+  }

  /**
   * perform call hangup by jambonz
@@ -1672,6 +1834,9 @@ Duration=${duration} `
    else if (opts.boostAudioSignal) {
      return this._lccBoostAudioSignal(opts, callSid);
    }
+    else if (opts.media_path) {
+      return this._lccMediaPath(opts.media_path, callSid);
+    }
    else if (opts.llm_tool_output) {
      return this._lccToolOutput(opts.tool_call_id, opts.llm_tool_output, callSid);
    }
@@ -1975,6 +2140,13 @@ Duration=${duration} `
          });
        break;

+      case 'media:path':
+        this._lccMediaPath(data, call_sid)
+          .catch((err) => {
+            this.logger.info({err, data}, 'CallSession:_onCommand - error setting media path');
+          });
+        break;
+
      case 'llm:tool-output':
        this._lccToolOutput(tool_call_id, data, call_sid);
        break;
@@ -1983,6 +2155,18 @@ Duration=${duration} `
        this._lccLlmUpdate(data, call_sid);
        break;

+      case 'tts:tokens':
+        this._lccTtsTokens(data);
+        break;
+
+      case 'tts:flush':
+        this._lccTtsFlush(data);
+        break;
+
+      case 'tts:clear':
+        this._lccTtsClear(data);
+        break;
+
      default:
        this.logger.info(`CallSession:_onCommand - invalid command ${command}`);
    }
@@ -2040,6 +2224,8 @@ Duration=${duration} `
        };
      }

+      this._enableInbandDtmfIfRequired(this.ep);
+
      // we are going from an early media connection to answer
      if (this.direction === CallDirection.Inbound) {
        // only do this for inbound call.
@@ -2063,7 +2249,6 @@ Duration=${duration} `
      //ep.cs = this;
      this.ep = ep;
      this.logger.info(`allocated endpoint ${ep.uuid}`);
-
      this._configMsEndpoint();

      this.ep.on('destroy', () => {
@@ -2176,6 +2361,8 @@ Duration=${duration} `
    // close all background tasks
    this.backgroundTaskManager.stopAll();
    this.clearOrRestoreActionHookDelayProcessor().catch((err) => {});
+
+    this.ttsStreamingBuffer?.stop();
  }

  /**
@@ -2225,22 +2412,43 @@ Duration=${duration} `
        },
        localSdp: this.ep.local.sdp
      });
-      this.logger.debug('answered call');
-      this.dlg.on('destroy', this._callerHungup.bind(this));
-      this.wrapDialog(this.dlg);
-      this.dlg.callSid = this.callSid;
-      this.emit('callStatusChange', {sipStatus: 200, sipReason: 'OK', callStatus: CallStatus.InProgress});

-      if (this.recordOptions && this.recordState === RecordState.RecordingOff) {
-        this.startRecording();
+      const tidyUp = () => {
+        this.dlg.on('destroy', this._callerHungup.bind(this));
+        this.wrapDialog(this.dlg);
+        this.dlg.callSid = this.callSid;
+        this.emit('callStatusChange', {sipStatus: 200, sipReason: 'OK', callStatus: CallStatus.InProgress});
+
+        if (this.recordOptions && this.recordState === RecordState.RecordingOff) {
+          this.startRecording();
+        }
+        this.dlg.on('modify', this._onReinvite.bind(this));
+        this.dlg.on('refer', this._onRefer.bind(this));
+        if (this.sipRequestWithinDialogHook) {
+          this.dlg.on('info', this._onRequestWithinDialog.bind(this));
+          this.dlg.on('message', this._onRequestWithinDialog.bind(this));
+        }
+        this.logger.debug(`CallSession:propagateAnswer - answered callSid ${this.callSid}`);
+      };
+
+      if (this.is3pccInvite) {
+        return new Promise((resolve, reject) => {
+          this.dlg.once('ack', (ackRequest) => {
+            this.logger.debug({body: ackRequest.body}, 'received ACK for 3pcc invite');
+            this.ep.modify(ackRequest.body)
+              .then(() => {
+                tidyUp();
+                return resolve();
+              })
+              .catch((err) => {
+                this.logger.info({err}, 'Error modifying endpoint with ACK');
+                reject(err);
+              });
+          });
+          this.logger.debug('this is a 3pcc invite');
+        });
      }
-      this.dlg.on('modify', this._onReinvite.bind(this));
-      this.dlg.on('refer', this._onRefer.bind(this));
-      if (this.sipRequestWithinDialogHook) {
-        this.dlg.on('info', this._onRequestWithinDialog.bind(this));
-        this.dlg.on('message', this._onRequestWithinDialog.bind(this));
-      }
-      this.logger.debug(`CallSession:propagateAnswer - answered callSid ${this.callSid}`);
+      tidyUp();
    }
    else {
      this.logger.debug('CallSession:propagateAnswer - call already answered - re-anchor media with a reinvite');
@@ -2318,6 +2526,12 @@ Duration=${duration} `
      try {
        const to = parseUri(req.getParsedHeader('Refer-To').uri);
        const by = parseUri(req.getParsedHeader('Referred-By').uri);
+        const customHeaders = Object.keys(req.headers)
+          .filter((h) => h.toLowerCase().startsWith('x-'))
+          .reduce((acc, h) => {
+            acc[h] = req.get(h);
+            return acc;
+          }, {});
        const b3 = this.b3;
        const httpHeaders = b3 && {b3};
        const json = await this.requestor.request('verb:hook', this._referHook, {
@@ -2330,6 +2544,7 @@ Duration=${duration} `
            referred_by_user: by.scheme === 'tel' ? by.number : by.user,
            referring_call_sid: this.callSid,
            referred_call_sid: null,
+            ...customHeaders
          }
        }, httpHeaders);

@@ -2505,27 +2720,35 @@ Duration=${duration} `
    };
  }

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

-  async reAnchorMedia() {
+  async reAnchorMedia(currentMediaRoute = MediaPath.PartialMedia) {
    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'
      }
    });
-    this._configMsEndpoint();
+
+    if (currentMediaRoute === MediaPath.NoMedia) {
+      await this.ep.modify(this.dlg.remote.sdp);
+    }
  }

  async handleReinviteAfterMediaReleased(req, res) {
@@ -2592,15 +2815,40 @@ Duration=${duration} `
  }

  _configMsEndpoint() {
+    this._enableInbandDtmfIfRequired(this.ep);
+    this.ep.once('destroy', this._handleMediaTimeout.bind(this));
    const opts = {
      ...(this.onHoldMusic && {holdMusic: `shout://${this.onHoldMusic.replace(/^https?:\/\//, '')}`}),
-      ...(JAMBONES_USE_FREESWITCH_TIMER_FD && {timer_name: 'timerfd'})
+      ...(JAMBONES_USE_FREESWITCH_TIMER_FD && {timer_name: 'timerfd'}),
+      ...(JAMBONES_MEDIA_TIMEOUT_MS && {media_timeout: JAMBONES_MEDIA_TIMEOUT_MS}),
+      ...(JAMBONES_MEDIA_HOLD_TIMEOUT_MS && {media_hold_timeout: JAMBONES_MEDIA_HOLD_TIMEOUT_MS})
    };
    if (Object.keys(opts).length > 0) {
      this.ep.set(opts);
    }
  }

+  async _handleMediaTimeout(evt) {
+    if (evt.reason === 'MEDIA_TIMEOUT' && !this.callGone) {
+      this.logger.info('CallSession:_handleMediaTimeout: received MEDIA_TIMEOUT, hangup the call');
+      this._jambonzHangup('Media Timeout');
+    }
+  }
+
+  async _enableInbandDtmfIfRequired(ep) {
+    if (ep.inbandDtmfEnabled) return;
+    // only enable inband dtmf detection if voip carrier dtmf_type === tones
+    if (this.inbandDtmfEnabled) {
+      // https://developer.signalwire.com/freeswitch/FreeSWITCH-Explained/Modules/mod-dptools/6587132/#0-about
+      try {
+        ep.execute('start_dtmf');
+        ep.inbandDtmfEnabled = true;
+      } catch (err) {
+        this.logger.info(err, 'CallSession:_enableInbandDtmf - error enable inband DTMF');
+      }
+    }
+  }
+
  /**
   * notifyTaskError - only used when websocket connection is used instead of webhooks
   */
@@ -2680,6 +2928,58 @@ Duration=${duration} `
      this.verbHookSpan = null;
    }
  }
+
+  _onTtsStreamingEmpty() {
+    const task = this.currentTask;
+    if (task && TaskName.Say === task.name) {
+      task.notifyTtsStreamIsEmpty();
+    }
+  }
+
+  _onTtsStreamingPause() {
+    this.requestor?.request('tts:streaming-event', '/streaming-event', {event_type: 'stream_paused'})
+      .catch((err) => this.logger.info({err}, 'CallSession:_onTtsStreamingPause - Error sending'));
+  }
+
+  _onTtsStreamingResume() {
+    this.requestor?.request('tts:streaming-event', 'streaming-event', {event_type: 'stream_resumed'})
+      .catch((err) => this.logger.info({err}, 'CallSession:_onTtsStreamingResume - Error sending'));
+  }
+
+  async _onTtsStreamingConnectFailure(vendor) {
+    const {writeAlerts, AlertType} = this.srf.locals;
+    try {
+      await writeAlerts({
+        alert_type: AlertType.TTS_STREAMING_CONNECTION_FAILURE,
+        account_sid: this.accountSid,
+        vendor
+      });
+    } catch (error) {
+      this.logger.error({error}, 'Error writing WEBHOOK_CONNECTION_FAILURE alert');
+    }
+    this.logger.info({vendor}, 'CallSession:_onTtsStreamingConnectFailure - tts streaming connect failure');
+  }
+
+  async startMaxCallDurationTimer(timeLimit) {
+    if (!this._maxCallDurationTimer && timeLimit > 0) {
+      this.timeLimit = timeLimit;
+      this._maxCallDurationTimer = setTimeout(this._onMaxCallDuration.bind(this), timeLimit * 1000);
+      this.logger.debug(`CallSession:startMaxCallDurationTimer - started max call duration timer for ${timeLimit}s`);
+    }
+  }
+
+  /**
+   * _onMaxCallDuration - called when the call has reached the maximum duration
+   */
+  _onMaxCallDuration() {
+    this.logger.info(`callSession:_onMaxCallDuration tearing down call as it has reached ${this.timeLimit}s`);
+    if (!this.dlg) {
+      this.logger.debug('CallSession:_onMaxCallDuration - no dialog, call already gone');
+      return;
+    }
+    this._jambonzHangup('Max Call Duration');
+    this._maxCallDurationTimer = null;
+  }
 }

 module.exports = CallSession;
--- a/lib/session/confirm-call-session.js
+++ b/lib/session/confirm-call-session.js
@@ -8,7 +8,7 @@ const CallSession = require('./call-session');

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

  /**
--- a/lib/session/inbound-call-session.js
+++ b/lib/session/inbound-call-session.js
@@ -70,8 +70,12 @@ class InboundCallSession extends CallSession {
    this._hangup('caller');
  }

-  _jambonzHangup() {
-    this.dlg?.destroy();
+  _jambonzHangup(reason) {
+    this.dlg?.destroy({
+      headers: {
+        ...(reason && {'X-Reason': reason})
+      }
+    });
    // kill current task or wakeup the call session.
    this._callReleased();
  }
--- a/lib/tasks/conference.js
+++ b/lib/tasks/conference.js
@@ -653,7 +653,8 @@ class Conference extends Task {
        memberId: this.memberId,
        confName: this.confName,
        tasks,
-        rootSpan: cs.rootSpan
+        rootSpan: cs.rootSpan,
+        req: cs.req
      });
      await this._playSession.exec();
      this._playSession = null;
--- a/lib/tasks/config.js
+++ b/lib/tasks/config.js
@@ -16,7 +16,8 @@ class TaskConfig extends Task {
      'fillerNoise',
      'actionHookDelayAction',
      'boostAudioSignal',
-      'vad'
+      'vad',
+      'ttsStream'
    ].forEach((k) => this[k] = this.data[k] || {});

    if ('notifyEvents' in this.data) {
@@ -45,6 +46,12 @@ class TaskConfig extends Task {
      };
      delete this.transcribeOpts.enable;
    }
+    if (this.ttsStream.enable) {
+      this.sayOpts = {
+        verb: 'say',
+        stream: true
+      };
+    }

    if (this.data.reset) {
      if (typeof this.data.reset === 'string') this.data.reset = [this.data.reset];
@@ -75,6 +82,7 @@ class TaskConfig extends Task {
  get hasVad() { return Object.keys(this.vad).length; }
  get hasFillerNoise() { return Object.keys(this.fillerNoise).length; }
  get hasReferHook() { return Object.keys(this.data).includes('referHook'); }
+  get hasTtsStream() { return Object.keys(this.ttsStream).length; }

  get summary() {
    const phrase = [];
@@ -106,6 +114,9 @@ class TaskConfig extends Task {
    if (this.onHoldMusic) phrase.push(`onHoldMusic: ${this.onHoldMusic}`);
    if ('boostAudioSignal' in this.data) phrase.push(`setGain ${this.data.boostAudioSignal}`);
    if (this.hasReferHook) phrase.push('set referHook');
+    if (this.hasTtsStream) {
+      phrase.push(`${this.ttsStream.enable ? 'enable' : 'disable'} ttsStream`);
+    }
    return `${this.name}{${phrase.join(',')}}`;
  }

@@ -305,6 +316,22 @@ class TaskConfig extends Task {
    if (this.hasReferHook) {
      cs.referHook = this.data.referHook;
    }
+
+    if (this.ttsStream.enable && this.sayOpts) {
+      this.sayOpts.synthesizer = this.hasSynthesizer ? this.synthesizer : {
+        vendor: cs.speechSynthesisVendor,
+        language: cs.speechSynthesisLanguage,
+        voice: cs.speechSynthesisVoice,
+        ...(cs.speechSynthesisLabel && {
+          label: cs.speechSynthesisLabel
+        })
+      };
+      this.logger.info({opts: this.gatherOpts}, 'Config: enabling ttsStream');
+      cs.enableBackgroundTtsStream(this.sayOpts);
+    } else if (!this.ttsStream.enable) {
+      this.logger.info('Config: disabling ttsStream');
+      cs.disableTtsStream();
+    }
  }

  async kill(cs) {
--- a/lib/tasks/dial.js
+++ b/lib/tasks/dial.js
@@ -6,6 +6,7 @@ const {
  TaskName,
  TaskPreconditions,
  MAX_SIMRINGS,
+  MediaPath,
  KillReason
 } = require('../utils/constants');
 const assert = require('assert');
@@ -108,6 +109,7 @@ class TaskDial extends Task {
    this.proxy = this.data.proxy;
    this.tag = this.data.tag;
    this.boostAudioSignal = this.data.boostAudioSignal;
+    this._mediaPath = MediaPath.FullMedia;

    if (this.dtmfHook) {
      const {parentDtmfCollector, childDtmfCollector} = parseDtmfOptions(logger, this.data.dtmfCapture || {});
@@ -155,17 +157,21 @@ class TaskDial extends Task {

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

    return !keepAnchor;
  }

+  get shouldExitMediaPathEntirely() {
+    return this.data.exitMediaPath;
+  }
+
  get summary() {
    if (this.target.length === 1) {
      const target = this.target[0];
@@ -186,6 +192,16 @@ class TaskDial extends Task {

  async exec(cs) {
    await super.exec(cs);
+
+    if (this.data.anchorMedia && this.data.exitMediaPath) {
+      this.logger.info('Dial:exec - incompatible anchorMedia and exitMediaPath are both set, will obey anchorMedia');
+      delete this.data.exitMediaPath;
+    }
+    if (!this.canReleaseMedia && this.data.exitMediaPath) {
+      this.logger.info(
+        'Dial:exec - exitMediaPath is set so features such as transcribe and record will not work on this call');
+    }
+
    try {
      if (this.listenTask) {
        const {span, ctx} = this.startChildSpan(`nested:${this.listenTask.summary}`);
@@ -257,7 +273,9 @@ class TaskDial extends Task {
    this._removeDtmfDetection(this.dlg);
    await this._killOutdials();
    if (this.sd) {
-      this.sd.kill();
+      const byeReasonHeader = this.killReason === KillReason.MediaTimeout ? 'Media Timeout' : undefined;
+      this.sd.kill(byeReasonHeader);
+      this.sd.ep?.removeListener('destroy', this._handleMediaTimeout.bind(this));
      this.sd.removeAllListeners();
      this.sd = null;
    }
@@ -303,7 +321,7 @@ class TaskDial extends Task {
      if (!cs.callGone && this.epOther) {

        /* if we can release the media back to the SBC, do so now */
-        if (this.canReleaseMedia) this._releaseMedia(cs, this.sd);
+        if (this.canReleaseMedia) this._releaseMedia(cs, this.sd, this.shouldExitMediaPathEntirely);
        else this.epOther.bridge(this.ep);
      }
    } catch (err) {
@@ -345,6 +363,12 @@ class TaskDial extends Task {
        const by = parseUri(req.getParsedHeader('Referred-By').uri);
        const referredBy = req.get('Referred-By');
        const userAgent = req.get('User-Agent');
+        const customHeaders = Object.keys(req.headers)
+          .filter((h) => h.toLowerCase().startsWith('x-'))
+          .reduce((acc, h) => {
+            acc[h] = req.get(h);
+            return acc;
+          }, {});
        this.logger.info({to}, 'refer to parsed');
        const json = await cs.requestor.request('verb:hook', this.referHook, {
          ...(callInfo.toJSON()),
@@ -355,7 +379,8 @@ class TaskDial extends Task {
            ...(userAgent && {sip_user_agent: userAgent}),
            ...(by && {referred_by_user: by.scheme === 'tel' ? by.number : by.user}),
            referring_call_sid,
-            referred_call_sid
+            referred_call_sid,
+            ...customHeaders
          }
        }, httpHeaders);
        if (json && Array.isArray(json)) {
@@ -496,7 +521,7 @@ class TaskDial extends Task {
    const {req, callInfo, direction, srf} = cs;
    const {getSBC} = srf.locals;
    const {lookupTeamsByAccount, lookupAccountBySid} = srf.locals.dbHelpers;
-    const {lookupCarrier, lookupCarrierByPhoneNumber} = dbUtils(this.logger, cs.srf);
+    const {lookupCarrier, lookupCarrierByPhoneNumber, lookupVoipCarrierBySid} = dbUtils(this.logger, cs.srf);
    let sbcAddress = this.proxy || getSBC();
    const teamsInfo = {};
    let fqdn;
@@ -515,6 +540,8 @@ class TaskDial extends Task {
      ...this.headers
    };

+    // default to inband dtmf if not specified
+    this.inbandDtmfEnabled = cs.inbandDtmfEnabled;
    // get calling user from From header
    const parsedFrom = req.getParsedHeader('from');
    const fromUri = parseUri(parsedFrom.uri);
@@ -592,10 +619,17 @@ class TaskDial extends Task {
          const str = this.callerId || req.callingNumber || '';
          const callingNumber = str.startsWith('+') ? str.substring(1) : str;
          const voip_carrier_sid = await lookupCarrierByPhoneNumber(cs.accountSid, callingNumber);
+          const req_voip_carrier_sid = req.has('X-Voip-Carrier-Sid') ? req.get('X-Voip-Carrier-Sid') : null;
          if (voip_carrier_sid) {
            this.logger.info(
              `Dial:_attemptCalls: selected voip_carrier_sid ${voip_carrier_sid} for callingNumber: ${callingNumber}`);
            opts.headers['X-Requested-Carrier-Sid'] = voip_carrier_sid;
+
+            // Checking if outbound carrier is different from inbound carrier and has dtmf type tones
+            if (voip_carrier_sid !== req_voip_carrier_sid) {
+              const [voipCarrier] = await lookupVoipCarrierBySid(voip_carrier_sid);
+              this.inbandDtmfEnabled = voipCarrier?.dtmf_type === 'tones';
+            }
          }
        }

@@ -752,7 +786,7 @@ class TaskDial extends Task {
            // 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);
+            await this._releaseMedia(this.cs, this.sd, this.shouldExitMediaPathEntirely);
            this.isOutgoingLegHold = false;
          } else {
            this.logger.debug('Dial: _onReinvite receive unhold Request, update media server');
@@ -861,7 +895,17 @@ class TaskDial extends Task {
    }

    /* if we can release the media back to the SBC, do so now */
-    if (this.canReleaseMedia) setTimeout(this._releaseMedia.bind(this, cs, sd), 200);
+    if (this.canReleaseMedia || this.shouldExitMediaPathEntirely) {
+      setTimeout(this._releaseMedia.bind(this, cs, sd, this.shouldExitMediaPathEntirely), 200);
+    }
+
+    this.sd.ep.once('destroy', this._handleMediaTimeout.bind(this));
+  }
+
+  _handleMediaTimeout(evt) {
+    if (evt.reason === 'MEDIA_TIMEOUT' && this.sd && this.bridged) {
+      this.kill(this.cs, KillReason.MediaTimeout);
+    }
  }

  _bridgeEarlyMedia(sd) {
@@ -873,22 +917,57 @@ class TaskDial extends Task {
    }
  }

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

    try {
      // Wait until we got new SDP from B leg to ofter to A Leg
      const aLegSdp = cs.ep.remote.sdp;
-      await sd.releaseMediaToSBC(aLegSdp, cs.ep.local.sdp);
+      await sd.releaseMediaToSBC(aLegSdp, cs.ep.local.sdp, releaseEntirely);
      const bLegSdp = sd.dlg.remote.sdp;
-      await cs.releaseMediaToSBC(bLegSdp);
+      await cs.releaseMediaToSBC(bLegSdp, releaseEntirely);
      this.epOther = null;
-      this.logger.info('Dial:_releaseMedia - successfully released media from freewitch');
+      this._mediaPath = releaseEntirely ? MediaPath.NoMedia : MediaPath.PartialMedia;
+      this.logger.info(
+        `Dial:_releaseMedia - successfully released media from freewitch, media path is now ${this._mediaPath}`);
    } catch (err) {
      this.logger.info({err}, 'Dial:_releaseMedia error');
    }
@@ -898,8 +977,14 @@ class TaskDial extends Task {
    if (cs.ep && sd.ep) return;

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

  // Handle RE-INVITE hold from caller leg.
@@ -918,11 +1003,12 @@ class TaskDial extends Task {
        }
        this._onHoldHook(req);
      } else if (!isOnhold(req.body)) {
-        if (this.epOther && this.ep && this.isIncomingLegHold && this.canReleaseMedia) {
+        if (this.epOther && this.ep && this.isIncomingLegHold &&
+          (this.canReleaseMedia || this.shouldExitMediaPathEntirely)) {
          // Offhold, time to release media
          const newSdp = await this.epOther.modify(req.body);
          await res.send(200, {body: newSdp});
-          await this._releaseMedia(this.cs, this.sd);
+          await this._releaseMedia(this.cs, this.sd, this.shouldExitMediaPathEntirely);
          isHandled = true;
        }
        this.isIncomingLegHold = false;
@@ -981,7 +1067,8 @@ class TaskDial extends Task {
              callInfo: this.cs.callInfo,
              accountInfo: this.cs.accountInfo,
              tasks,
-              rootSpan: this.cs.rootSpan
+              rootSpan: this.cs.rootSpan,
+              req: this.cs.req
            });
            await this._onHoldSession.exec();
            this._onHoldSession = null;
--- a/lib/tasks/enqueue.js
+++ b/lib/tasks/enqueue.js
@@ -369,7 +369,8 @@ class TaskEnqueue extends Task {
        callInfo: cs.callInfo,
        accountInfo: cs.accountInfo,
        tasks: tasksToRun,
-        rootSpan: cs.rootSpan
+        rootSpan: cs.rootSpan,
+        req: cs.req
      });
      await this._playSession.exec();
      this._playSession = null;
--- a/lib/tasks/gather.js
+++ b/lib/tasks/gather.js
@@ -155,7 +155,8 @@ class TaskGather extends SttTask {
      const {hints, hintsBoost} = cs.globalSttHints;
      const setOfHints = new Set((this.data.recognizer.hints || [])
        .concat(hints)
-        .filter((h) => typeof h === 'string' && h.length > 0));
+        // allow for hints to be an array of object
+        .filter((h) => (typeof h === 'string' && h.length > 0) || (typeof h === 'object')));
      this.data.recognizer.hints = [...setOfHints];
      if (!this.data.recognizer.hintsBoost && hintsBoost) this.data.recognizer.hintsBoost = hintsBoost;
      this.logger.debug({hints: this.data.recognizer.hints, hintsBoost: this.data.recognizer.hintsBoost},
@@ -342,6 +343,13 @@ class TaskGather extends SttTask {
      this._killAudio(cs);
      this.emit('dtmf', evt);
    }
+    if (this.isContinuousAsr && evt.dtmf === this.asrDtmfTerminationDigit && this._bufferedTranscripts.length > 0) {
+      this.logger.info(`continuousAsr triggered with dtmf ${this.asrDtmfTerminationDigit}`);
+      this._clearAsrTimer();
+      this._clearTimer();
+      this._startFinalAsrTimer();
+      return;
+    }
    if (evt.dtmf === this.finishOnKey && this.input.includes('digits')) {
      resolved = true;
      this._resolve('dtmf-terminator-key');
@@ -364,13 +372,6 @@ class TaskGather extends SttTask {
        this._resolve('dtmf-num-digits');
      }
    }
-    else if (this.isContinuousAsr && evt.dtmf === this.asrDtmfTerminationDigit) {
-      this.logger.info(`continuousAsr triggered with dtmf ${this.asrDtmfTerminationDigit}`);
-      this._clearAsrTimer();
-      this._clearTimer();
-      this._startFinalAsrTimer();
-      return;
-    }
    if (!resolved && this.interDigitTimeout > 0 && this.digitBuffer.length >= this.minDigits) {
      /* start interDigitTimer */
      const ms = this.interDigitTimeout * 1000;
@@ -722,6 +723,7 @@ class TaskGather extends SttTask {
        this._fillerNoiseOn = false;  // in a race, if we just started audio it may sneak through here
        this.ep.api('uuid_break', this.ep.uuid)
          .catch((err) => this.logger.info(err, 'Error killing audio'));
+        cs.clearTtsStream();
      }
      return;
    }
@@ -846,7 +848,10 @@ class TaskGather extends SttTask {
        this._startAsrTimer();

        /* some STT engines will keep listening after a final response, so no need to restart */
-        if (!['soniox', 'aws', 'microsoft', 'deepgram'].includes(this.vendor)) this._startTranscribing(ep);
+        if (!['soniox', 'aws', 'microsoft', 'deepgram', 'speechmatics'].includes(this.vendor) &&
+          !this.vendor.startsWith('custom')) {
+          this._startTranscribing(ep);
+        }
      }
      else {
        /* this was removed to fix https://github.com/jambonz/jambonz-feature-server/issues/783 */
@@ -1166,7 +1171,6 @@ class TaskGather extends SttTask {
    } catch (err) {  /*already logged error*/ }

    // Gather got response from hook, cancel actionHookDelay processing
-    this.logger.debug('TaskGather:_resolve - checking ahd');
    if (this.cs.actionHookDelayProcessor) {
      if (returnedVerbs) {
        this.logger.debug('TaskGather:_resolve - got response from action hook, cancelling actionHookDelay');
--- a/lib/tasks/llm/index.js
+++ b/lib/tasks/llm/index.js
@@ -1,6 +1,7 @@
 const Task = require('../task');
 const {TaskPreconditions} = require('../../utils/constants');
 const TaskLlmOpenAI_S2S = require('./llms/openai_s2s');
+const TaskLlmVoiceAgent_S2S = require('./llms/voice_agent_s2s');

 class TaskLlm extends Task {
  constructor(logger, opts) {
@@ -40,10 +41,14 @@ class TaskLlm extends Task {
    switch (this.vendor) {
      case 'openai':
      case 'microsoft':
-        if (this.model.startsWith('gpt-4o-realtime')) {
-          llm = new TaskLlmOpenAI_S2S(this.logger, this.data, this);
-        }
+        llm = new TaskLlmOpenAI_S2S(this.logger, this.data, this);
        break;
+
+      case 'voiceagent':
+      case 'deepgram':
+        llm = new TaskLlmVoiceAgent_S2S(this.logger, this.data, this);
+        break;
+
      default:
        throw new Error(`Unsupported vendor ${this.vendor} for LLM`);
    }
--- a/lib/tasks/llm/llms/openai_s2s.js
+++ b/lib/tasks/llm/llms/openai_s2s.js
@@ -59,7 +59,7 @@ class TaskLlmOpenAI_S2S extends Task {
    this.parent = parentTask;

    this.vendor = this.parent.vendor;
-    this.model = this.parent.model;
+    this.model = this.parent.model || 'gpt-4o-realtime-preview-2024-12-17';
    this.auth = this.parent.auth;
    this.connectionOptions = this.parent.connectOptions;

@@ -120,9 +120,9 @@ class TaskLlmOpenAI_S2S extends Task {

    switch (this.vendor) {
      case 'openai':
-        return 'v1/realtime?model=gpt-4o-realtime-preview-2024-10-01';
+        return 'v1/realtime?model=${this.model}';
      case 'microsoft':
-        return 'openai/realtime?api-version=2024-10-01-preview&deployment=gpt-4o-realtime-preview-1001&';
+        return `openai/realtime?api-version=2024-10-01-preview&deployment=${this.model}`;
    }
  }

--- a/lib/tasks/llm/llms/voice_agent_s2s.js
+++ b/lib/tasks/llm/llms/voice_agent_s2s.js
@@ -0,0 +1,313 @@
+const Task = require('../../task');
+const TaskName = 'Llm_VoiceAgent_s2s';
+const {LlmEvents_VoiceAgent} = require('../../../utils/constants');
+const ClientEvent = 'client.event';
+const SessionDelete = 'session.delete';
+
+const va_server_events = [
+  'Error',
+  'Welcome',
+  'SettingsApplied',
+  'ConversationText',
+  'UserStartedSpeaking',
+  'EndOfThought',
+  'AgentThinking',
+  'FunctionCallRequest',
+  'FunctionCalling',
+  'AgentStartedSpeaking',
+  'AgentAudioDone',
+];
+
+const expandWildcards = (events) => {
+  // no-op for deepgram
+  return events;
+};
+
+class TaskLlmVoiceAgent_S2S extends Task {
+  constructor(logger, opts, parentTask) {
+    super(logger, opts, parentTask);
+    this.parent = parentTask;
+
+    this.vendor = this.parent.vendor;
+    this.model = this.parent.model;
+    this.auth = this.parent.auth;
+    this.connectionOptions = this.parent.connectOptions;
+
+    const {apiKey} = this.auth || {};
+    if (!apiKey) throw new Error('auth.apiKey is required for VoiceAgent S2S');
+
+    this.apiKey = apiKey;
+    this.authType = 'bearer';
+    this.actionHook = this.data.actionHook;
+    this.eventHook = this.data.eventHook;
+    this.toolHook = this.data.toolHook;
+    const {settingsConfiguration} = this.data.llmOptions;
+
+    if (typeof settingsConfiguration !== 'object') {
+      throw new Error('llmOptions with an initial settingsConfiguration is required for VoiceAgent S2S');
+    }
+
+    // eslint-disable-next-line no-unused-vars
+    const {audio, ...rest} = settingsConfiguration;
+    const cfg = this.settingsConfiguration = rest;
+
+    if (!cfg.agent) throw new Error('llmOptions.settingsConfiguration.agent is required for VoiceAgent S2S');
+    if (!cfg.agent.think) {
+      throw new Error('llmOptions.settingsConfiguration.agent.think is required for VoiceAgent S2S');
+    }
+    if (!cfg.agent.think.model) {
+      throw new Error('llmOptions.settingsConfiguration.agent.think.model is required for VoiceAgent S2S');
+    }
+    if (!cfg.agent.think.provider?.type) {
+      throw new Error('llmOptions.settingsConfiguration.agent.think.provider.type is required for VoiceAgent S2S');
+    }
+
+    this.results = {
+      completionReason: 'normal conversation end'
+    };
+
+    /**
+     * only one of these will have items,
+     * if includeEvents, then these are the events to include
+     * if excludeEvents, then these are the events to exclude
+     */
+    this.includeEvents = [];
+    this.excludeEvents = [];
+
+    /* default to all events if user did not specify */
+    this._populateEvents(this.data.events || va_server_events);
+
+    this.addCustomEventListener = parentTask.addCustomEventListener.bind(parentTask);
+    this.removeCustomEventListeners = parentTask.removeCustomEventListeners.bind(parentTask);
+  }
+
+  get name() { return TaskName; }
+
+  get host() {
+    const {host} = this.connectionOptions || {};
+    return host || 'agent.deepgram.com';
+  }
+
+  get path() {
+    const {path} = this.connectionOptions || {};
+    if (path) return path;
+
+    return '/agent';
+  }
+
+  async _api(ep, args) {
+    const res = await ep.api('uuid_voice_agent_s2s', `^^|${args.join('|')}`);
+    if (!res.body?.startsWith('+OK')) {
+      throw new Error(`Error calling uuid_voice_agent_s2s: ${JSON.stringify(res.body)}`);
+    }
+  }
+
+  async exec(cs, {ep}) {
+    await super.exec(cs);
+
+    await this._startListening(cs, ep);
+
+    await this.awaitTaskDone();
+
+    /* note: the parent llm verb started the span, which is why this is necessary */
+    await this.parent.performAction(this.results);
+
+    this._unregisterHandlers();
+  }
+
+  async kill(cs) {
+    super.kill(cs);
+
+    this._api(cs.ep, [cs.ep.uuid, SessionDelete])
+      .catch((err) => this.logger.info({err}, 'TaskLlmVoiceAgent_S2S:kill - error deleting session'));
+
+    this.notifyTaskDone();
+  }
+
+  /**
+   * Send function call response to the VoiceAgent server
+   */
+  async processToolOutput(ep, tool_call_id, data) {
+    try {
+      const {data:response} = data;
+      this.logger.debug({tool_call_id, response}, 'TaskLlmVoiceAgent_S2S:processToolOutput');
+
+      if (!response.type || response.type !== 'FunctionCallResponse') {
+        this.logger.info({response},
+          'TaskLlmVoiceAgent_S2S:processToolOutput - invalid tool output, must be FunctionCallResponse');
+      }
+      else {
+        await this._api(ep, [ep.uuid, ClientEvent, JSON.stringify(response)]);
+      }
+    } catch (err) {
+      this.logger.info({err}, 'TaskLlmVoiceAgent_S2S:processToolOutput');
+    }
+  }
+
+  /**
+   * Send a session.update to the VoiceAgent server
+   * Note: creating and deleting conversation items also supported as well as interrupting the assistant
+   */
+  async processLlmUpdate(ep, data, _callSid) {
+    try {
+      this.logger.debug({data, _callSid}, 'TaskLlmVoiceAgent_S2S:processLlmUpdate');
+
+      if (!data.type || ![
+        'UpdateInstructions',
+        'UpdateSpeak',
+        'InjectAgentMessage',
+      ].includes(data.type)) {
+        this.logger.info({data}, 'TaskLlmVoiceAgent_S2S:processLlmUpdate - invalid mid-call request');
+      }
+      else {
+        await this._api(ep, [ep.uuid, ClientEvent, JSON.stringify(data)]);
+      }
+    } catch (err) {
+      this.logger.info({err}, 'TaskLlmVoiceAgent_S2S:processLlmUpdate');
+    }
+  }
+
+  async _startListening(cs, ep) {
+    this._registerHandlers(ep);
+
+    try {
+      const args = [ep.uuid, 'session.create', this.host, this.path, this.authType, this.apiKey];
+      await this._api(ep, args);
+    } catch (err) {
+      this.logger.error({err}, `TaskLlmVoiceAgent_S2S:_startListening: ${JSON.stringify(err)}`);
+      this.notifyTaskDone();
+    }
+  }
+
+  async _sendClientEvent(ep, obj) {
+    let ok = true;
+    this.logger.debug({obj}, 'TaskLlmVoiceAgent_S2S:_sendClientEvent');
+    try {
+      const args = [ep.uuid, ClientEvent, JSON.stringify(obj)];
+      await this._api(ep, args);
+    } catch (err) {
+      ok = false;
+      this.logger.error({err}, 'TaskLlmVoiceAgent_S2S:_sendClientEvent - Error');
+    }
+    return ok;
+  }
+
+  async _sendInitialMessage(ep) {
+    if (!await this._sendClientEvent(ep, this.settingsConfiguration)) {
+      this.notifyTaskDone();
+    }
+  }
+
+  _registerHandlers(ep) {
+    this.addCustomEventListener(ep, LlmEvents_VoiceAgent.Connect, this._onConnect.bind(this, ep));
+    this.addCustomEventListener(ep, LlmEvents_VoiceAgent.ConnectFailure, this._onConnectFailure.bind(this, ep));
+    this.addCustomEventListener(ep, LlmEvents_VoiceAgent.Disconnect, this._onDisconnect.bind(this, ep));
+    this.addCustomEventListener(ep, LlmEvents_VoiceAgent.ServerEvent, this._onServerEvent.bind(this, ep));
+  }
+
+  _unregisterHandlers() {
+    this.removeCustomEventListeners();
+  }
+
+  _onError(_ep, evt) {
+    this.logger.info({evt}, 'TaskLlmVoiceAgent_S2S:_onError');
+    this.notifyTaskDone();
+  }
+
+  _onConnect(ep) {
+    this.logger.debug('TaskLlmVoiceAgent_S2S:_onConnect');
+    this._sendInitialMessage(ep);
+  }
+  _onConnectFailure(_ep, evt) {
+    this.logger.info(evt, 'TaskLlmVoiceAgent_S2S:_onConnectFailure');
+    this.results = {completionReason: 'connection failure'};
+    this.notifyTaskDone();
+  }
+  _onDisconnect(_ep, evt) {
+    this.logger.info(evt, 'TaskLlmVoiceAgent_S2S:_onConnectFailure');
+    this.results = {completionReason: 'disconnect from remote end'};
+    this.notifyTaskDone();
+  }
+  async _onServerEvent(_ep, evt) {
+    let endConversation = false;
+    const type = evt.type;
+    this.logger.info({evt}, 'TaskLlmVoiceAgent_S2S:_onServerEvent');
+
+    /* check for failures, such as rate limit exceeded, that should terminate the conversation */
+    if (type === 'response.done' && evt.response.status === 'failed') {
+      endConversation = true;
+      this.results = {
+        completionReason: 'server failure',
+        error: evt.response.status_details?.error
+      };
+    }
+
+    /* server errors of some sort */
+    else if (type === 'error') {
+      endConversation = true;
+      this.results = {
+        completionReason: 'server error',
+        error: evt.error
+      };
+    }
+
+    /* tool calls */
+    else if (type === 'FunctionCallRequest') {
+      this.logger.debug({evt}, 'TaskLlmVoiceAgent_S2S:_onServerEvent - function_call');
+      if (!this.toolHook) {
+        this.logger.warn({evt}, 'TaskLlmVoiceAgent_S2S:_onServerEvent - no toolHook defined!');
+      }
+      else {
+        const {function_name:name, function_call_id:call_id} = evt;
+        const args = evt.input;
+
+        try {
+          await this.parent.sendToolHook(call_id, {name, args});
+        } catch (err) {
+          this.logger.info({err, evt}, 'TaskLlmVoiceAgent - error calling function');
+          this.results = {
+            completionReason: 'client error calling function',
+            error: err
+          };
+          endConversation = true;
+        }
+      }
+    }
+
+    /* check whether we should notify on this event */
+    if (this.includeEvents.length > 0 ? this.includeEvents.includes(type) : !this.excludeEvents.includes(type)) {
+      this.parent.sendEventHook(evt)
+        .catch((err) => this.logger.info({err}, 'TaskLlmVoiceAgent_S2S:_onServerEvent - error sending event hook'));
+    }
+
+    if (endConversation) {
+      this.logger.info({results: this.results},
+        'TaskLlmVoiceAgent_S2S:_onServerEvent - ending conversation due to error');
+      this.notifyTaskDone();
+    }
+  }
+
+  _populateEvents(events) {
+    if (events.includes('all')) {
+      /* work by excluding specific events */
+      const exclude = events
+        .filter((evt) => evt.startsWith('-'))
+        .map((evt) => evt.slice(1));
+      if (exclude.length === 0) this.includeEvents = va_server_events;
+      else this.excludeEvents = expandWildcards(exclude);
+    }
+    else {
+      /* work by including specific events */
+      const include = events
+        .filter((evt) => !evt.startsWith('-'));
+      this.includeEvents = expandWildcards(include);
+    }
+
+    this.logger.debug({
+      includeEvents: this.includeEvents,
+      excludeEvents: this.excludeEvents
+    }, 'TaskLlmVoiceAgent_S2S:_populateEvents');
+  }
+}
+
+module.exports = TaskLlmVoiceAgent_S2S;
--- a/lib/tasks/play.js
+++ b/lib/tasks/play.js
@@ -1,5 +1,6 @@
 const Task = require('./task');
 const {TaskName, TaskPreconditions} = require('../utils/constants');
+const { PlayFileNotFoundError } = require('../utils/error');

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

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

  async exec(cs) {
    await super.exec(cs);
+
+    if (cs.requestor instanceof WsRequestor && cs.application.requestor._isAbsoluteUrl(this.actionHook)) {
+      this.logger.info(`Task:performAction redirecting to ${this.actionHook}, requires new ws connection`);
+      try {
+        this.cs.requestor.close();
+        const requestor = new WsRequestor(this.logger, cs.accountSid, {url: this.actionHook}, this.webhook_secret) ;
+        this.cs.application.requestor = requestor;
+      } catch (err) {
+        this.logger.info(err, `Task:performAction error redirecting to ${this.actionHook}`);
+      }
+    }
    await this.performAction();
  }
 }
--- a/lib/tasks/rest_dial.js
+++ b/lib/tasks/rest_dial.js
@@ -12,6 +12,7 @@ class TaskRestDial extends Task {

    this.from = this.data.from;
    this.callerName = this.data.callerName;
+    this.timeLimit = this.data.timeLimit;
    this.fromHost = this.data.fromHost;
    this.to = this.data.to;
    this.call_hook = this.data.call_hook;
@@ -66,6 +67,9 @@ class TaskRestDial extends Task {
    const cs = this.callSession;
    cs.setDialog(dlg);
    cs.referHook = this.referHook;
+    if (this.timeLimit) {
+      cs.startMaxCallDurationTimer(this.timeLimit);
+    }
    this.logger.debug('TaskRestDial:_onConnect - call connected');
    if (this.sipRequestWithinDialogHook) this._initSipRequestWithinDialogHandler(cs, dlg);
    try {
@@ -77,11 +81,13 @@ class TaskRestDial extends Task {
          synthesizer: {
            vendor: cs.speechSynthesisVendor,
            language: cs.speechSynthesisLanguage,
-            voice: cs.speechSynthesisVoice
+            voice: cs.speechSynthesisVoice,
+            label: cs.speechSynthesisLabel,
          },
          recognizer: {
            vendor:  cs.speechRecognizerVendor,
-            language: cs.speechRecognizerLanguage
+            language: cs.speechRecognizerLanguage,
+            label: cs.speechRecognizerLabel,
          }
        }
      };
--- a/lib/tasks/say.js
+++ b/lib/tasks/say.js
@@ -1,3 +1,4 @@
+const assert = require('assert');
 const TtsTask = require('./tts-task');
 const {TaskName, TaskPreconditions} = require('../utils/constants');
 const pollySSMLSplit = require('polly-ssml-split');
@@ -35,24 +36,40 @@ class TaskSay extends TtsTask {
    super(logger, opts, parentTask);
    this.preconditions = TaskPreconditions.Endpoint;

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

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

  get name() { return TaskName.Say; }

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

+  get isStreamingTts() { return this._isStreamingTts; }
+
  _validateURL(urlString) {
    try {
      new URL(urlString);
@@ -63,14 +80,19 @@ class TaskSay extends TtsTask {
  }

  async exec(cs, obj) {
+    if (this.isStreamingTts && !cs.appIsUsingWebsockets) {
+      throw new Error('Say: streaming say verb requires applications to use the websocket API');
+    }
+
    try {
-      await this.handling(cs, obj);
+      if (this.isStreamingTts) await this.handlingStreaming(cs, obj);
+      else await this.handling(cs, obj);
      this.emit('playDone');
    } catch (error) {
      if (error instanceof SpeechCredentialError) {
        // if say failed due to speech credentials, alarm is writtern and error notification is sent
        // finished this say to move to next task.
-        this.logger.info('Say failed due to SpeechCredentialError, finished!');
+        this.logger.info({error}, 'Say failed due to SpeechCredentialError, finished!');
        this.emit('playDone');
        return;
      }
@@ -78,6 +100,35 @@ class TaskSay extends TtsTask {
    }
  }

+  async handlingStreaming(cs, {ep}) {
+    const {vendor, language, voice, label} = this.getTtsVendorData(cs);
+    const  credentials = cs.getSpeechCredentials(vendor, 'tts', label);
+    if (!credentials) {
+      throw new SpeechCredentialError(
+        `No text-to-speech service credentials for ${vendor} with labels: ${label} have been configured`);
+    }
+
+    try {
+
+      await this.setTtsStreamingChannelVars(vendor, language, voice, credentials, ep);
+
+      await cs.startTtsStream();
+
+      cs.requestor?.request('tts:streaming-event', '/streaming-event', {event_type: 'stream_open'})
+        .catch((err) => this.logger.info({err}, 'TaskSay:handlingStreaming - Error sending'));
+    } catch (err) {
+      this.logger.info({err}, 'TaskSay:handlingStreaming - Error setting channel vars');
+      cs.requestor?.request('tts:streaming-event', '/streaming-event', {event_type: 'stream_closed'})
+        .catch((err) => this.logger.info({err}, 'TaskSay:handlingStreaming - Error sending'));
+
+      //TODO: send tts:streaming-event with error?
+      this.notifyTaskDone();
+    }
+
+    await this.awaitTaskDone();
+    this.logger.info('TaskSay:handlingStreaming - done');
+  }
+
  async handling(cs, {ep}) {
    const {srf, accountSid:account_sid, callSid:target_sid} = cs;
    const {writeAlerts, AlertType} = srf.locals;
@@ -96,7 +147,7 @@ class TaskSay extends TtsTask {
    let voice =  this.synthesizer.voice && this.synthesizer.voice !== 'default' ?
      this.synthesizer.voice :
      cs.speechSynthesisVoice;
-    let label = this.taskInlcudeSynthesizer ? this.synthesizer.label : cs.speechSynthesisLabel;
+    let label = this.taskIncludeSynthesizer ? this.synthesizer.label : cs.speechSynthesisLabel;

    const fallbackVendor = this.synthesizer.fallbackVendor && this.synthesizer.fallbackVendor !== 'default' ?
      this.synthesizer.fallbackVendor :
@@ -107,7 +158,7 @@ class TaskSay extends TtsTask {
    const fallbackVoice =  this.synthesizer.fallbackVoice && this.synthesizer.fallbackVoice !== 'default' ?
      this.synthesizer.fallbackVoice :
      cs.fallbackSpeechSynthesisVoice;
-    const fallbackLabel = this.taskInlcudeSynthesizer ?
+    const fallbackLabel = this.taskIncludeSynthesizer ?
      this.synthesizer.fallbackLabel : cs.fallbackSpeechSynthesisLabel;

    if (cs.hasFallbackTts) {
@@ -253,6 +304,7 @@ class TaskSay extends TtsTask {
        this._playResolve = null;
      }
    }
+    this.notifyTaskDone();
  }

  _addStreamingTtsAttributes(span, evt) {
@@ -263,6 +315,7 @@ class TaskSay extends TtsTask {
          .replace('whisper_', 'whisper.')
          .replace('deepgram_', 'deepgram.')
          .replace('playht_', 'playht.')
+          .replace('cartesia_', 'cartesia.')
          .replace('rimelabs_', 'rimelabs.')
          .replace('verbio_', 'verbio.')
          .replace('elevenlabs_', 'elevenlabs.');
@@ -273,6 +326,13 @@ class TaskSay extends TtsTask {
    delete attrs['cache_filename']; //no value in adding this to the span
    span.setAttributes(attrs);
  }
+
+  notifyTtsStreamIsEmpty() {
+    if (this.isStreamingTts && this.closeOnStreamEmpty) {
+      this.logger.info('TaskSay:notifyTtsStreamIsEmpty - stream is empty, killing task');
+      this.notifyTaskDone();
+    }
+  }
 }

 const spanMapping = {
@@ -309,6 +369,11 @@ const spanMapping = {
  'playht.name_lookup_time_ms': 'name_lookup_ms',
  'playht.connect_time_ms': 'connect_ms',
  'playht.final_response_time_ms': 'final_response_ms',
+  // Cartesia
+  'cartesia.request_id': 'cartesia.req_id',
+  'cartesia.name_lookup_time_ms': 'name_lookup_ms',
+  'cartesia.connect_time_ms': 'connect_ms',
+  'cartesia.final_response_time_ms': 'final_response_ms',
  // Rimelabs
  'rimelabs.name_lookup_time_ms': 'name_lookup_ms',
  'rimelabs.connect_time_ms': 'connect_ms',
--- a/lib/tasks/sip_refer.js
+++ b/lib/tasks/sip_refer.js
@@ -12,6 +12,7 @@ class TaskSipRefer extends Task {

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

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

    /* get IP address of the SBC to use as hostname if needed */
    const {host} = parseUri(dlg.remote.uri);
@@ -117,9 +121,12 @@ class TaskSipRefer extends Task {
      referredBy = cs.req?.callingNumber || dlg.local.uri;
      this.logger.info({referredBy}, 'setting referredby');
    }
+    if (!referredByDisplayName) {
+      referredByDisplayName = cs.req?.callingName;
+    }
    if (!referredBy.startsWith('<') && !referredBy.startsWith('sip') && !referredBy.startsWith('"')) {
      /* they may have only provided a phone number/user */
-      referredBy = `sip:${referredBy}@${host}`;
+      referredBy = `${referredByDisplayName ? `"${referredByDisplayName}"` : ''}<sip:${referredBy}@${host}>`;
    }
    return {referTo, referredBy};
  }
--- a/lib/tasks/stt-task.js
+++ b/lib/tasks/stt-task.js
@@ -219,7 +219,8 @@ class SttTask extends Task {
          roleArn
        });
      this.logger.debug({roleArn}, `(roleArn) got aws access token ${servedFromCache ? 'from cache' : ''}`);
-      credentials = {...credentials, accessKeyId, secretAccessKey, sessionToken};
+      // from role ARN, we will get SessionToken, but feature server use it as securityToken.
+      credentials = {...credentials, accessKeyId, secretAccessKey, securityToken: sessionToken};
    }
    else if (vendor === 'verbio' && credentials.client_id && credentials.client_secret) {
      const {access_token, servedFromCache} = await getVerbioAccessToken(credentials);
@@ -229,9 +230,13 @@ class SttTask extends Task {
    }
    else if (vendor == 'aws' && !JAMBONES_AWS_TRANSCRIBE_USE_GRPC) {
      /* get AWS access token */
-      const {accessKeyId, secretAccessKey, securityToken, region } = credentials;
+      const {speech_credential_sid, accessKeyId, secretAccessKey, securityToken, region } = credentials;
      if (!securityToken) {
-        const { servedFromCache, ...newCredentials} = await getAwsAuthToken({accessKeyId, secretAccessKey, region});
+        const { servedFromCache, ...newCredentials} = await getAwsAuthToken({
+          speech_credential_sid,
+          accessKeyId,
+          secretAccessKey,
+          region});
        this.logger.debug({newCredentials}, `got aws security token ${servedFromCache ? 'from cache' : ''}`);
        credentials = {...newCredentials, region};
      }
--- a/lib/tasks/transcribe.js
+++ b/lib/tasks/transcribe.js
@@ -27,6 +27,7 @@ class TaskTranscribe extends SttTask {
    super(logger, opts, parentTask);

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

    if (this.data.recognizer) {
@@ -302,7 +303,9 @@ class TaskTranscribe extends SttTask {
      case 'speechmatics':
        this.bugname = `${this.bugname_prefix}speechmatics_transcribe`;
        this.addCustomEventListener(
-          ep, SpeechmaticsTranscriptionEvents.Transcription, this._onTranscription.bind(this, cs, ep));
+          ep, SpeechmaticsTranscriptionEvents.Transcription, this._onTranscription.bind(this, cs, ep, channel));
+        this.addCustomEventListener(
+          ep, SpeechmaticsTranscriptionEvents.Translation, this._onTranslation.bind(this, cs, ep, channel));
        this.addCustomEventListener(ep, SpeechmaticsTranscriptionEvents.Info,
          this._onSpeechmaticsInfo.bind(this, cs, ep));
        this.addCustomEventListener(ep, SpeechmaticsTranscriptionEvents.RecognitionStarted,
@@ -441,7 +444,7 @@ class TaskTranscribe extends SttTask {
        this._startAsrTimer(channel);

        /* some STT engines will keep listening after a final response, so no need to restart */
-        if (!['soniox', 'aws', 'microsoft', 'deepgram', 'google']
+        if (!['soniox', 'aws', 'microsoft', 'deepgram', 'google', 'speechmatics']
          .includes(this.vendor)) this._startTranscribing(cs, ep, channel);
      }
      else {
@@ -466,7 +469,7 @@ class TaskTranscribe extends SttTask {
        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) &&
+        if (!['soniox', 'aws', 'microsoft', 'deepgram', 'google', 'speechmatics'].includes(this.vendor) &&
          !this.vendor.startsWith('custom:')) {
          this.logger.debug('TaskTranscribe:_onTranscription - restarting transcribe');
          this._startTranscribing(cs, ep, channel);
@@ -492,6 +495,47 @@ class TaskTranscribe extends SttTask {
    }
  }

+  async _onTranslation(_cs, _ep, channel, evt, _fsEvent) {
+    this.logger.debug({evt}, 'TaskTranscribe:_onTranslation');
+    if (this.translationHook && evt.results?.length > 0) {
+      try {
+        const b3 = this.getTracingPropagation();
+        const httpHeaders = b3 && {b3};
+        const payload = {
+          ...this.cs.callInfo,
+          ...httpHeaders,
+          translation: {
+            channel,
+            language: evt.language,
+            translation: evt.results[0].content
+          }
+        };
+
+        this.logger.debug({payload}, 'sending translationHook');
+        const json = await this.cs.requestor.request('verb:hook', this.translationHook, payload);
+        this.logger.info({json}, 'completed translationHook');
+        if (json && Array.isArray(json) && !this.parentTask) {
+          const makeTask = require('./make_task');
+          const tasks = normalizeJambones(this.logger, json).map((tdata) => makeTask(this.logger, tdata));
+          if (tasks && tasks.length > 0) {
+            this.logger.info({tasks: tasks}, `${this.name} replacing application with ${tasks.length} tasks`);
+            this.cs.replaceApplication(tasks);
+          }
+        }
+      } catch (err) {
+        this.logger.info(err, 'TranscribeTask:_onTranslation error');
+      }
+      if (this.parentTask) {
+        this.parentTask.emit('translation', evt);
+      }
+    }
+    if (this.killed) {
+      this.logger.debug('TaskTranscribe:_onTranslation exiting after receiving final transcription');
+      this._clearTimer();
+      this.notifyTaskDone();
+    }
+  }
+
  async _resolve(channel, evt) {
    if (evt.is_final) {
      /* we've got a final transcript, so end the otel child span for this channel */
@@ -671,7 +715,7 @@ class TaskTranscribe extends SttTask {
    this.logger.debug({evt}, 'TaskGather:_onSpeechmaticsInfo');
  }

-  async _onSpeechmaticsErrror(cs, _ep, evt) {
+  async _onSpeechmaticsError(cs, _ep, evt) {
    // eslint-disable-next-line no-unused-vars
    const {message, ...e} = evt;
    this._onVendorError(cs, _ep, {error: JSON.stringify(e)});
--- a/lib/tasks/tts-task.js
+++ b/lib/tasks/tts-task.js
@@ -13,11 +13,11 @@ class TtsTask extends Task {

    this.earlyMedia = this.data.earlyMedia === true || (parentTask && parentTask.earlyMedia);
    /**
-     * Task use taskInlcudeSynthesizer to identify
-     * if taskInlcudeSynthesizer === true, use label from verb.synthesizer, even it's empty
-     * if taskInlcudeSynthesizer === false, use label from application.synthesizer
+     * Task use taskIncludeSynthesizer to identify
+     * if taskIncludeSynthesizer === true, use label from verb.synthesizer, even it's empty
+     * if taskIncludeSynthesizer === false, use label from application.synthesizer
     */
-    this.taskInlcudeSynthesizer = !!this.data.synthesizer;
+    this.taskIncludeSynthesizer = !!this.data.synthesizer;
    this.synthesizer = this.data.synthesizer || {};
    this.disableTtsCache = this.data.disableTtsCache;
    this.options = this.synthesizer.options || {};
@@ -44,6 +44,64 @@ class TtsTask extends Task {
    }
  }

+  getTtsVendorData(cs) {
+    const vendor = this.synthesizer.vendor && this.synthesizer.vendor !== 'default' ?
+      this.synthesizer.vendor :
+      cs.speechSynthesisVendor;
+    const language = this.synthesizer.language && this.synthesizer.language !== 'default' ?
+      this.synthesizer.language :
+      cs.speechSynthesisLanguage ;
+    const voice =  this.synthesizer.voice && this.synthesizer.voice !== 'default' ?
+      this.synthesizer.voice :
+      cs.speechSynthesisVoice;
+    const label = this.taskIncludeSynthesizer ? this.synthesizer.label : cs.speechSynthesisLabel;
+    return {vendor, language, voice, label};
+  }
+
+  async setTtsStreamingChannelVars(vendor, language, voice, credentials, ep) {
+    const {api_key, model_id} = credentials;
+    const {stability, similarity_boost, use_speaker_boost, style} = this.options;
+    let obj;
+
+    this.logger.debug({credentials},
+      `setTtsStreamingChannelVars: vendor: ${vendor}, language: ${language}, voice: ${voice}`);
+
+    switch (vendor) {
+      case 'deepgram':
+        obj = {
+          DEEPGRAM_API_KEY: api_key,
+          DEEPGRAM_TTS_STREAMING_MODEL: voice
+        };
+        break;
+      case 'cartesia':
+        obj = {
+          CARTESIA_API_KEY: api_key,
+          CARTESIA_TTS_STREAMING_MODEL_ID: model_id,
+          CARTESIA_TTS_STREAMING_VOICE_ID: voice,
+          CARTESIA_TTS_STREAMING_LANGUAGE: language || 'en',
+        };
+        break;
+      case 'elevenlabs':
+        obj = {
+          ELEVENLABS_API_KEY: api_key,
+          ELEVENLABS_TTS_STREAMING_MODEL_ID: model_id,
+          ELEVENLABS_TTS_STREAMING_VOICE_ID: voice,
+          // 20/12/2024 - only eleven_turbo_v2_5 support multiple language
+          ...(['eleven_turbo_v2_5'].includes(model_id) && {ELEVENLABS_TTS_STREAMING_LANGUAGE: language}),
+          ...(stability && {ELEVENLABS_TTS_STREAMING_VOICE_SETTINGS_STABILITY: stability}),
+          ...(similarity_boost && {ELEVENLABS_TTS_STREAMING_VOICE_SETTINGS_SIMILARITY_BOOST: similarity_boost}),
+          ...(use_speaker_boost && {ELEVENLABS_TTS_STREAMING_VOICE_SETTINGS_USE_SPEAKER_BOOST: use_speaker_boost}),
+          ...(style && {ELEVENLABS_TTS_STREAMING_VOICE_SETTINGS_STYLE: style})
+        };
+        break;
+      default:
+        throw new Error(`vendor ${vendor} is not supported for tts streaming yet`);
+    }
+    this.logger.info({vendor, credentials, obj}, 'setTtsStreamingChannelVars');
+
+    await ep.set(obj);
+  }
+
  async _synthesizeWithSpecificVendor(cs, ep, {vendor, language, voice, label, preCache = false}) {
    const {srf, accountSid:account_sid} = cs;
    const {writeAlerts, AlertType, stats} = srf.locals;
--- a/lib/utils/action-hook-delay.js
+++ b/lib/utils/action-hook-delay.js
@@ -126,7 +126,12 @@ class ActionHookDelayProcessor extends Emitter {
    try {
      this._taskInProgress = makeTask(this.logger, t[0]);
      this._taskInProgress.disableTracing = true;
-      this._taskInProgress.exec(this.cs, {ep: this.ep});
+      this._taskInProgress.exec(this.cs, {ep: this.ep}).catch((err) => {
+        this.logger.info(`ActionHookDelayProcessor#_onNoResponseTimer: error playing file: ${err.message}`);
+        this._taskInProgress = null;
+        this.ep.removeAllListeners('playback-start');
+        this.ep.removeAllListeners('playback-stop');
+      });
    } catch (err) {
      this.logger.info(err, 'ActionHookDelayProcessor#_onNoResponseTimer: error starting action');
      this._taskInProgress = null;
--- a/lib/utils/amd-utils.js
+++ b/lib/utils/amd-utils.js
@@ -153,7 +153,7 @@ class Amd extends Emitter {
      const wordCount = t.alternatives[0].transcript.split(' ').length;
      const final = t.is_final;

-      const foundHint = hints.find((h) =>  t.alternatives[0].transcript.includes(h));
+      const foundHint = hints.find((h) =>  t.alternatives[0].transcript.toLowerCase().includes(h.toLowerCase()));
      if (foundHint) {
        /* we detected a common voice mail greeting */
        this.logger.debug(`Amd:evaluateTranscription: found hint ${foundHint}`);
--- a/lib/utils/background-task-manager.js
+++ b/lib/utils/background-task-manager.js
@@ -46,6 +46,9 @@ class BackgroundTaskManager extends Emitter {
      case 'transcribe':
        task = await this._initTranscribe(opts);
        break;
+      case 'ttsStream':
+        task = await this._initTtsStream(opts);
+        break;
      default:
        break;
    }
@@ -100,6 +103,7 @@ class BackgroundTaskManager extends Emitter {
  async _initBargeIn(opts) {
    let task;
    try {
+      const copy = JSON.parse(JSON.stringify(opts));
      const t = normalizeJambones(this.logger, [opts]);
      task = makeTask(this.logger, t[0]);
      task
@@ -118,7 +122,7 @@ class BackgroundTaskManager extends Emitter {
          if (task.sticky && !this.cs.callGone && !this.cs._stopping) {
            this.logger.info('BackgroundTaskManager:_initBargeIn: restarting background bargeIn');
            this._bargeInHandled = false;
-            this.newTask('bargeIn', opts, true);
+            this.newTask('bargeIn', copy, true);
          }
          return;
        })
@@ -173,6 +177,25 @@ class BackgroundTaskManager extends Emitter {
    return task;
  }

+  // Initiate Tts Stream
+  async _initTtsStream(opts) {
+    let task;
+    try {
+      const t = normalizeJambones(this.logger, [opts]);
+      task = makeTask(this.logger, t[0]);
+      const resources = await this.cs._evaluatePreconditions(task);
+      const {span, ctx} = this.rootSpan.startChildSpan(`background-ttsStream:${task.summary}`);
+      task.span = span;
+      task.ctx = ctx;
+      task.exec(this.cs, resources)
+        .then(this._taskCompleted.bind(this, 'ttsStream', task))
+        .catch(this._taskError.bind(this, 'ttsStream', task));
+    } catch (err) {
+      this.logger.info(err, 'BackgroundTaskManager:_initTtsStream - Error creating ttsStream task');
+    }
+    return task;
+  }
+
  _taskCompleted(type, task) {
    this.logger.debug({type, task}, `BackgroundTaskManager:_taskCompleted: task completed, sticky: ${task.sticky}`);
    task.removeAllListeners();
--- a/lib/utils/constants.json
+++ b/lib/utils/constants.json
@@ -129,6 +129,7 @@
  },
  "SpeechmaticsTranscriptionEvents": {
    "Transcription": "speechmatics_transcribe::transcription",
+    "Translation": "speechmatics_transcribe::translation",
    "Info": "speechmatics_transcribe::info",
    "RecognitionStarted": "speechmatics_transcribe::recognition_started",
    "ConnectFailure": "speechmatics_transcribe::connect_failed",
@@ -174,6 +175,13 @@
    "Disconnect": "openai_s2s::disconnect",
    "ServerEvent": "openai_s2s::server_event"
  },
+  "LlmEvents_VoiceAgent": {
+    "Error": "error",
+    "Connect": "voice_agent_s2s::connect",
+    "ConnectFailure": "voice_agent_s2s::connect_failed",
+    "Disconnect": "voice_agent_s2s::disconnect",
+    "ServerEvent": "voice_agent_s2s::server_event"
+  },
  "QueueResults": {
    "Bridged": "bridged",
    "Error": "error",
@@ -188,7 +196,8 @@
  },
  "KillReason": {
    "Hangup": "hangup",
-    "Replaced": "replaced"
+    "Replaced": "replaced",
+    "MediaTimeout": "media_timeout"
  },
  "HookMsgTypes": [
    "session:new",
@@ -202,6 +211,8 @@
    "verb:status",
    "llm:event",
    "llm:tool-call",
+    "tts:tokens-result",
+    "tts:streaming-event",
    "jambonz:error"
  ],
  "RecordState": {
@@ -220,7 +231,45 @@
    "ToneTimeout": "amd_tone_timeout",
    "Stopped": "amd_stopped"
  },
+  "MediaPath": {
+    "NoMedia": "no-media",
+    "PartialMedia": "partial-media",
+    "FullMedia": "full-media"
+  },
+  "DeepgramTtsStreamingEvents": {
+    "Empty": "deepgram_tts_streaming::empty",
+    "ConnectFailure": "deepgram_tts_streaming::connect_failed",
+    "Connect": "deepgram_tts_streaming::connect"
+  },
+  "CartesiaTtsStreamingEvents": {
+    "Empty": "cartesia_tts_streaming::empty",
+    "ConnectFailure": "cartesia_tts_streaming::connect_failed",
+    "Connect": "cartesia_tts_streaming::connect"
+  },
+  "ElevenlabsTtsStreamingEvents": {
+    "Empty": "elevenlabs_tts_streaming::empty",
+    "ConnectFailure": "elevenlabs_tts_streaming::connect_failed",
+    "Connect": "elevenlabs_tts_streaming::connect"
+  },
+  "TtsStreamingEvents": {
+    "Empty": "tts_streaming::empty",
+    "Pause": "tts_streaming::pause",
+    "Resume": "tts_streaming::resume",
+    "ConnectFailure": "tts_streaming::connect_failed"
+  },
+  "TtsStreamingConnectionStatus": {
+    "NotConnected": "not_connected",
+    "Connected": "connected",
+    "Connecting": "connecting",
+    "Failed": "failed"
+  },
  "MAX_SIMRINGS": 10,
  "BONG_TONE": "tone_stream://v=-7;%(100,0,941.0,1477.0);v=-7;>=2;+=.1;%(1400,0,350,440)",
-  "FS_UUID_SET_NAME": "fsUUIDs"
+  "FS_UUID_SET_NAME": "fsUUIDs",
+  "SystemState" : {
+    "Online": "ONLINE",
+    "Offline": "OFFLINE",
+    "GracefulShutdownInProgress":"SHUTDOWN_IN_PROGRESS"
+  },
+  "FEATURE_SERVER" : "feature-server"
 }
--- a/lib/utils/db-utils.js
+++ b/lib/utils/db-utils.js
@@ -105,6 +105,13 @@ const speechMapper = (cred) => {
      obj.voice_engine = o.voice_engine;
      obj.options = o.options;
    }
+    else if ('cartesia' === obj.vendor) {
+      const o = JSON.parse(decrypt(credential));
+      obj.api_key = o.api_key;
+      obj.model_id = o.model_id;
+      obj.embedding = o.embedding;
+      obj.options = o.options;
+    }
    else if ('rimelabs' === obj.vendor) {
      const o = JSON.parse(decrypt(credential));
      obj.api_key = o.api_key;
@@ -215,11 +222,23 @@ module.exports = (logger, srf) => {
    }
  };

+  const lookupVoipCarrierBySid = async(sid) => {
+    const pp = pool.promise();
+    try {
+      const [r] = await pp.query('SELECT * FROM voip_carriers WHERE voip_carrier_sid = ?', [sid]);
+      return r;
+
+    } catch (err) {
+      logger.error({err}, `lookupVoipCarrierBySid: Error ${sid}`);
+    }
+  };
+
  return {
    lookupAccountDetails,
    updateSpeechCredentialLastUsed,
    lookupCarrier,
    lookupCarrierByPhoneNumber,
-    lookupGoogleCustomVoice
+    lookupGoogleCustomVoice,
+    lookupVoipCarrierBySid
  };
 };
--- a/lib/utils/error.js
+++ b/lib/utils/error.js
@@ -1,9 +1,24 @@
-class SpeechCredentialError extends Error {
+class NonFatalTaskError extends Error {
  constructor(msg) {
    super(msg);
  }
 }

+class SpeechCredentialError extends NonFatalTaskError {
+  constructor(msg) {
+    super(msg);
+  }
+}
+
+class PlayFileNotFoundError extends NonFatalTaskError {
+  constructor(url) {
+    super('File not found');
+    this.url = url;
+  }
+}
+
 module.exports = {
-  SpeechCredentialError
+  SpeechCredentialError,
+  NonFatalTaskError,
+  PlayFileNotFoundError
 };
--- a/lib/utils/install-srf-locals.js
+++ b/lib/utils/install-srf-locals.js
@@ -199,7 +199,8 @@ function installSrfLocals(srf, logger) {
  } = require('@jambonz/speech-utils')({}, logger);
  const {
    writeAlerts,
-    AlertType
+    AlertType,
+    writeSystemAlerts
  } = require('@jambonz/time-series')(logger, {
    host: JAMBONES_TIME_SERIES_HOST,
    commitSize: 50,
@@ -269,7 +270,8 @@ function installSrfLocals(srf, logger) {
    getFreeswitch,
    stats: stats,
    writeAlerts,
-    AlertType
+    AlertType,
+    writeSystemAlerts
  };

  if (localIp) {
--- a/lib/utils/place-outdial.js
+++ b/lib/utils/place-outdial.js
@@ -1,5 +1,5 @@
 const Emitter = require('events');
-const {CallStatus} = require('./constants');
+const {CallStatus, MediaPath} = require('./constants');
 const SipError = require('drachtio-srf').SipError;
 const {TaskPreconditions, CallDirection} = require('../utils/constants');
 const CallInfo = require('../session/call-info');
@@ -17,7 +17,9 @@ const HttpRequestor = require('./http-requestor');
 const WsRequestor = require('./ws-requestor');
 const {makeOpusFirst} = require('./sdp-utils');
 const {
-  JAMBONES_USE_FREESWITCH_TIMER_FD
+  JAMBONES_USE_FREESWITCH_TIMER_FD,
+  JAMBONES_MEDIA_TIMEOUT_MS,
+  JAMBONES_MEDIA_HOLD_TIMEOUT_MS
 } = require('../config');

 class SingleDialer extends Emitter {
@@ -317,14 +319,19 @@ class SingleDialer extends Emitter {
  /**
   * kill the call in progress or the stable dialog, whichever we have
   */
-  async kill() {
+  async kill(Reason) {
    this.killed = true;
    if (this.inviteInProgress) await this.inviteInProgress.cancel();
    else if (this.dlg && this.dlg.connected) {
      const duration = moment().diff(this.dlg.connectTime, 'seconds');
      this.logger.debug('SingleDialer:kill hanging up called party');
      this.emit('callStatusChange', {callStatus: CallStatus.Completed, duration});
-      this.dlg.destroy();
+      const headers = {
+        ...(Reason && {'X-Reason': Reason})
+      };
+      this.dlg.destroy({
+        headers
+      });
    }
    if (this.ep) {
      this.logger.debug(`SingleDialer:kill - deleting endpoint ${this.ep.uuid}`);
@@ -335,11 +342,22 @@ class SingleDialer extends Emitter {
  _configMsEndpoint() {
    const opts = {
      ...(this.onHoldMusic && {holdMusic: `shout://${this.onHoldMusic.replace(/^https?:\/\//, '')}`}),
-      ...(JAMBONES_USE_FREESWITCH_TIMER_FD && {timer_name: 'timerfd'})
+      ...(JAMBONES_USE_FREESWITCH_TIMER_FD && {timer_name: 'timerfd'}),
+      ...(JAMBONES_MEDIA_TIMEOUT_MS && {media_timeout: JAMBONES_MEDIA_TIMEOUT_MS}),
+      ...(JAMBONES_MEDIA_HOLD_TIMEOUT_MS && {media_hold_timeout: JAMBONES_MEDIA_HOLD_TIMEOUT_MS})
    };
    if (Object.keys(opts).length > 0) {
      this.ep.set(opts);
    }
+    if (this.dialTask?.inbandDtmfEnabled && !this.ep.inbandDtmfEnabled) {
+      // https://developer.signalwire.com/freeswitch/FreeSWITCH-Explained/Modules/mod-dptools/6587132/#0-about
+      try {
+        this.ep.execute('start_dtmf');
+        this.ep.inbandDtmfEnabled = true;
+      } catch (err) {
+        this.logger.info(err, 'place-outdial:_configMsEndpoint - error enable inband DTMF');
+      }
+    }
  }

  /**
@@ -381,7 +399,8 @@ class SingleDialer extends Emitter {
        callInfo: this.callInfo,
        accountInfo: this.accountInfo,
        tasks,
-        rootSpan: this.rootSpan
+        rootSpan: this.rootSpan,
+        req: this.req
      });
      await cs.exec();

@@ -455,21 +474,26 @@ class SingleDialer extends Emitter {
    return cs;
  }

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

-  async reAnchorMedia() {
+  async reAnchorMedia(currentMediaRoute = MediaPath.PartialMedia) {
    assert(this.dlg && this.dlg.connected && !this.ep);
+
+    this.logger.debug('SingleDialer:reAnchorMedia: re-anchoring media after partial media');
    this.ep = await this.ms.createEndpoint({remoteSdp: this.dlg.remote.sdp});
    this._configMsEndpoint();
    await this.dlg.modify(this.ep.local.sdp, {
@@ -477,6 +501,11 @@ class SingleDialer extends Emitter {
        'X-Reason': 'anchor-media'
      }
    });
+
+    if (currentMediaRoute === MediaPath.NoMedia) {
+      this.logger.debug('SingleDialer:reAnchorMedia: repoint endpoint after no media');
+      await this.ep.modify(this.dlg.remote.sdp);
+    }
  }

  _notifyCallStatusChange({callStatus, sipStatus, sipReason, duration}) {
--- a/lib/utils/sbc-pinger.js
+++ b/lib/utils/sbc-pinger.js
@@ -46,12 +46,24 @@ module.exports = (logger) => {
            const {srf} = require('../..');
            srf.locals.publicIp = publicIp;
          })
-          .on(LifeCycleEvents.ScaleIn, () => {
+          .on(LifeCycleEvents.ScaleIn, async() => {
            logger.info('AWS scale-in notification: begin drying up calls');
            dryUpCalls = true;
            lifecycleEmitter.operationalState = LifeCycleEvents.ScaleIn;

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

            // if we have zero calls, we can complete the scale-in right
--- a/lib/utils/transcription-utils.js
+++ b/lib/utils/transcription-utils.js
@@ -109,6 +109,8 @@ const stickyVars = {
    'SPEECHMATICS_HOST',
    'SPEECHMATICS_PATH',
    'SPEECHMATICS_SPEECH_HINTS',
+    'SPEECHMATICS_TRANSLATION_LANGUAGES',
+    'SPEECHMATICS_TRANSLATION_PARTIALS'
  ]
 };

@@ -183,7 +185,10 @@ const selectDefaultGoogleModel = (task, language, version) => {
    (useV2 ? 'long' : 'latest_long');
 };
 const consolidateTranscripts = (bufferedTranscripts, channel, language, vendor) => {
-  if (bufferedTranscripts.length === 1) return bufferedTranscripts[0];
+  if (bufferedTranscripts.length === 1) {
+    bufferedTranscripts[0].is_final = true;
+    return bufferedTranscripts[0];
+  }
  let totalConfidence = 0;
  const finalTranscript = bufferedTranscripts.reduce((acc, evt) => {
    totalConfidence += evt.alternatives[0].confidence;
@@ -937,11 +942,18 @@ module.exports = (logger) => {
      };
    }
    else if ('speechmatics' === vendor) {
+      const {speechmaticsOptions = {}} = rOpts;
      opts = {
        ...opts,
        ...(sttCredentials.api_key) && {SPEECHMATICS_API_KEY: sttCredentials.api_key},
        ...(sttCredentials.speechmatics_stt_uri) && {SPEECHMATICS_HOST: sttCredentials.speechmatics_stt_uri},
        ...(rOpts.hints?.length > 0 && {SPEECHMATICS_SPEECH_HINTS: rOpts.hints.join(',')}),
+        ...(speechmaticsOptions.translation_config &&
+          {
+            SPEECHMATICS_TRANSLATION_LANGUAGES: speechmaticsOptions.translation_config.target_languages.join(','),
+            SPEECHMATICS_TRANSLATION_PARTIALS: speechmaticsOptions.translation_config.enable_partials ? 1 : 0
+          }
+        ),
      };
    }
    else if (vendor.startsWith('custom:')) {
--- a/lib/utils/tts-streaming-buffer.js
+++ b/lib/utils/tts-streaming-buffer.js
@@ -0,0 +1,325 @@
+const Emitter = require('events');
+const assert = require('assert');
+const {
+  TtsStreamingEvents,
+  TtsStreamingConnectionStatus
+} = require('../utils/constants');
+const MAX_CHUNK_SIZE = 1800;
+const HIGH_WATER_BUFFER_SIZE = 1000;
+const LOW_WATER_BUFFER_SIZE = 200;
+const TIMEOUT_RETRY_MSECS = 3000;
+
+class TtsStreamingBuffer extends Emitter {
+  constructor(cs) {
+    super();
+    this.cs = cs;
+    this.logger = cs.logger;
+
+    this.tokens = '';
+    this.eventHandlers = [];
+    this._isFull = false;
+    this._connectionStatus = TtsStreamingConnectionStatus.NotConnected;
+    this._flushPending = false;
+    this.timer = null;
+  }
+
+  get isEmpty() {
+    return this.tokens.length === 0;
+  }
+
+  get isFull() {
+    return this._isFull;
+  }
+
+  get size() {
+    return this.tokens.length;
+  }
+
+  get ep() {
+    return this.cs?.ep;
+  }
+
+  async start() {
+    assert.ok(
+      this._connectionStatus === TtsStreamingConnectionStatus.NotConnected,
+      'TtsStreamingBuffer:start already started, or has failed');
+
+    this.vendor = this.cs.getTsStreamingVendor();
+    if (!this.vendor) {
+      this.logger.info('TtsStreamingBuffer:start No TTS streaming vendor configured');
+      throw new Error('No TTS streaming vendor configured');
+    }
+
+    this.logger.info(`TtsStreamingBuffer:start Connecting to TTS streaming with vendor ${this.vendor}`);
+
+    this._connectionStatus = TtsStreamingConnectionStatus.Connecting;
+    try {
+      if (this.eventHandlers.length === 0) this._initHandlers(this.ep);
+      await  this._api(this.ep, [this.ep.uuid, 'connect']);
+    } catch (err) {
+      this.logger.info({err}, 'TtsStreamingBuffer:start Error connecting to TTS streaming');
+      this._connectionStatus = TtsStreamingConnectionStatus.Failed;
+    }
+  }
+
+  stop() {
+    clearTimeout(this.timer);
+    this.removeCustomEventListeners();
+    if (this.ep) {
+      this._api(this.ep, [this.ep.uuid, 'close'])
+        .catch((err) => this.logger.info({err}, 'TtsStreamingBuffer:kill Error closing TTS streaming'));
+    }
+    this.timer = null;
+    this.tokens = '';
+    this._connectionStatus = TtsStreamingConnectionStatus.NotConnected;
+  }
+
+  /**
+   * Add tokens to the buffer and start feeding them to the endpoint if necessary.
+   */
+  async bufferTokens(tokens) {
+
+    if (this._connectionStatus === TtsStreamingConnectionStatus.Failed) {
+      this.logger.info('TtsStreamingBuffer:bufferTokens TTS streaming connection failed, rejecting request');
+      return {status: 'failed', reason: `connection to ${this.vendor} failed`};
+    }
+
+    const displayedTokens = tokens.length <= 40 ? tokens : tokens.substring(0, 40);
+    const totalLength = tokens.length;
+
+    /* if we crossed the high water mark, reject the request */
+    if (this.tokens.length + totalLength > HIGH_WATER_BUFFER_SIZE) {
+      this.logger.info(
+        `TtsStreamingBuffer throttling: buffer is full, rejecting request to buffer ${totalLength} tokens`);
+
+      if (!this._isFull) {
+        this._isFull = true;
+        this.emit(TtsStreamingEvents.Pause);
+      }
+      return {status: 'failed', reason: 'full'};
+    }
+
+    this.logger.debug(
+      `TtsStreamingBuffer:bufferTokens "${displayedTokens}" (length: ${totalLength}), starting? ${this.isEmpty}`
+    );
+    this.tokens += (tokens || '');
+
+    await this._feedTokens();
+
+    return {status: 'ok'};
+  }
+
+  flush() {
+    this.logger.debug('TtsStreamingBuffer:flush');
+    if (this._connectionStatus === TtsStreamingConnectionStatus.Connecting) {
+      this.logger.debug('TtsStreamingBuffer:flush TTS stream is not quite ready - wait for connect');
+      this._flushPending = true;
+      return;
+    }
+    else if (this._connectionStatus === TtsStreamingConnectionStatus.Connected) {
+
+      if (this.size === 0) {
+        this._doFlush();
+      }
+      else {
+        /* we have tokens queued, so flush after they have been sent */
+        this._pendingFlush = true;
+      }
+    }
+  }
+
+  clear() {
+    this.logger.debug('TtsStreamingBuffer:clear');
+
+    if (this._connectionStatus !== TtsStreamingConnectionStatus.Connected) return;
+    clearTimeout(this.timer);
+    this._api(this.ep, [this.ep.uuid, 'clear'])
+      .catch((err) => this.logger.info({err}, 'TtsStreamingBuffer:clear Error clearing TTS streaming'));
+    this.tokens = '';
+    this.timer = null;
+    this._isFull = false;
+  }
+
+  /**
+   * Send tokens to the TTS engine in sentence chunks for best playout
+   */
+  async _feedTokens(handlingTimeout = false) {
+    this.logger.debug({tokens: this.tokens}, '_feedTokens');
+
+    try {
+
+      /* are we in a state where we can feed tokens to the TTS? */
+      if (!this.cs.isTtsStreamOpen || !this.ep || !this.tokens) {
+        this.logger.debug('TTS stream is not open or no tokens to send');
+        return this.tokens?.length || 0;
+      }
+
+      if (this._connectionStatus === TtsStreamingConnectionStatus.NotConnected ||
+        this._connectionStatus === TtsStreamingConnectionStatus.Failed) {
+        this.logger.debug('TtsStreamingBuffer:_feedTokens TTS stream is not connected');
+        return;
+      }
+
+      if (this._connectionStatus === TtsStreamingConnectionStatus.Connecting) {
+        this.logger.debug('TtsStreamingBuffer:_feedTokens TTS stream is not ready, waiting for connect');
+        return;
+      }
+
+      /* must send at least one sentence */
+      const limit = Math.min(MAX_CHUNK_SIZE, this.tokens.length);
+      let chunkEnd = findSentenceBoundary(this.tokens, limit);
+
+      if (chunkEnd <= 0) {
+        if (handlingTimeout) {
+          /* on a timeout we've left some tokens sitting around, so be more aggressive now in sending them */
+          chunkEnd = findWordBoundary(this.tokens, limit);
+          if (chunkEnd <= 0) {
+            this.logger.debug('TtsStreamingBuffer:_feedTokens: no word boundary found');
+            this._setTimerIfNeeded();
+            return;
+          }
+        }
+        else {
+          /* if we just received tokens, we wont send unless we have at least a full sentence */
+          this.logger.debug('TtsStreamingBuffer:_feedTokens: no sentence boundary found');
+          this._setTimerIfNeeded();
+          return;
+        }
+      }
+
+      const chunk = this.tokens.slice(0, chunkEnd);
+      this.tokens = this.tokens.slice(chunkEnd);
+
+      /* freeswitch looks for sequence of 2 newlines to determine end of message, so insert a space */
+      const modifiedChunk = chunk.replace(/\n\n/g, '\n \n');
+      await this._api(this.ep, [this.ep.uuid, 'send', modifiedChunk]);
+      this.logger.debug(`TtsStreamingBuffer:_feedTokens: sent ${chunk.length}, remaining: ${this.tokens.length}`);
+
+      if (this._pendingFlush) {
+        this._doFlush();
+        this._pendingFlush = false;
+      }
+
+      if (this.isFull && this.tokens.length <= LOW_WATER_BUFFER_SIZE) {
+        this.logger.info('TtsStreamingBuffer throttling: TTS streaming buffer is no longer full - resuming');
+        this._isFull = false;
+        this.emit(TtsStreamingEvents.Resume);
+      }
+    } catch (err) {
+      this.logger.info({err}, 'TtsStreamingBuffer:_feedTokens Error sending TTS chunk');
+      this.tokens = '';
+    }
+
+    return;
+  }
+
+  async _api(ep, args) {
+    const apiCmd = `uuid_${this.vendor}_tts_streaming`;
+    const res = await ep.api(apiCmd, `^^|${args.join('|')}`);
+    if (!res.body?.startsWith('+OK')) {
+      this.logger.info({args}, `Error calling ${apiCmd}: ${res.body}`);
+      throw new Error(`Error calling ${apiCmd}: ${res.body}`);
+    }
+  }
+
+  _onConnectFailure(vendor) {
+    this.logger.info(`streaming tts connection failed to ${vendor}`);
+    this._connectionStatus = TtsStreamingConnectionStatus.Failed;
+    this.tokens = '';
+    this.emit(TtsStreamingEvents.ConnectFailure, {vendor});
+  }
+
+  _doFlush() {
+    this._api(this.ep, [this.ep.uuid, 'flush'])
+      .catch((err) => this.logger.info({err},
+        `TtsStreamingBuffer:_doFlush Error flushing TTS streaming: ${JSON.stringify(err)}`));
+  }
+
+  async _onConnect(vendor) {
+    this.logger.info(`streaming tts connection made to ${vendor}`);
+    this._connectionStatus = TtsStreamingConnectionStatus.Connected;
+    if (this.tokens.length > 0) {
+      await this._feedTokens();
+    }
+    if (this._flushPending) {
+      this.flush();
+      this._flushPending = false;
+    }
+  }
+
+  _setTimerIfNeeded() {
+    if (this.tokens.length > 0 && !this.timer) {
+      this.timer = setTimeout(this._onTimeout.bind(this), TIMEOUT_RETRY_MSECS);
+    }
+  }
+
+  _onTimeout() {
+    this.logger.info('TtsStreamingBuffer:_onTimeout');
+    this.timer = null;
+    this._feedTokens(true);
+  }
+
+  _onTtsEmpty(vendor) {
+    this.emit(TtsStreamingEvents.Empty, {vendor});
+  }
+
+  addCustomEventListener(ep, event, handler) {
+    this.eventHandlers.push({ep, event, handler});
+    ep.addCustomEventListener(event, handler);
+  }
+
+  removeCustomEventListeners() {
+    this.eventHandlers.forEach((h) => h.ep.removeCustomEventListener(h.event, h.handler));
+  }
+
+  _initHandlers(ep) {
+    [
+      // DH: add other vendors here as modules are added
+      'deepgram',
+      'cartesia',
+      'elevenlabs'
+    ].forEach((vendor) => {
+      const eventClassName = `${vendor.charAt(0).toUpperCase() + vendor.slice(1)}TtsStreamingEvents`;
+      const eventClass = require('../utils/constants')[eventClassName];
+      if (!eventClass) throw new Error(`Event class for vendor ${vendor} not found`);
+
+      this.addCustomEventListener(ep, eventClass.Connect, this._onConnect.bind(this, vendor));
+      this.addCustomEventListener(ep, eventClass.ConnectFailure, this._onConnectFailure.bind(this, vendor));
+      this.addCustomEventListener(ep, eventClass.Empty, this._onTtsEmpty.bind(this, vendor));
+    });
+  }
+}
+
+const findSentenceBoundary = (text, limit) => {
+  // Match traditional sentence boundaries or double newlines
+  const sentenceEndRegex = /[.!?](?=\s|$)|\n\n/g;
+  let lastSentenceBoundary = -1;
+  let match;
+
+  while ((match = sentenceEndRegex.exec(text)) && match.index < limit) {
+    const precedingText = text.slice(0, match.index).trim(); // Extract text before the match and trim whitespace
+    if (precedingText.length > 0) { // Check if there's actual content
+      if (
+        match[0] === '\n\n' || // It's a double newline
+        (match.index === 0 || !/\d$/.test(text[match.index - 1])) // Standard punctuation rules
+      ) {
+        lastSentenceBoundary = match.index + (match[0] === '\n\n' ? 2 : 1); // Include the boundary
+      }
+    }
+  }
+
+  return lastSentenceBoundary;
+};
+
+const findWordBoundary = (text, limit) => {
+  const wordBoundaryRegex = /\s+/g;
+  let lastWordBoundary = -1;
+  let match;
+
+  while ((match = wordBoundaryRegex.exec(text)) && match.index < limit) {
+    lastWordBoundary = match.index;
+  }
+  return lastWordBoundary;
+};
+
+module.exports = TtsStreamingBuffer;
--- a/lib/utils/ws-requestor.js
+++ b/lib/utils/ws-requestor.js
@@ -12,6 +12,20 @@ const {
  JAMBONES_WS_MAX_PAYLOAD,
  HTTP_USER_AGENT_HEADER
 } = require('../config');
+const MTYPE_WANTS_ACK = [
+  'call:status',
+  'verb:status',
+  'jambonz:error',
+  'llm:event',
+  'llm:tool-call',
+  'tts:streaming-event',
+  'tts:tokens-result',
+];
+const MTYPE_NO_DATA = [
+  'llm:tool-output',
+  'tts:flush',
+  'tts:clear'
+];

 class WsRequestor extends BaseRequestor {
  constructor(logger, account_sid, hook, secret) {
@@ -44,7 +58,7 @@ class WsRequestor extends BaseRequestor {
  async request(type, hook, params, httpHeaders = {}) {
    assert(HookMsgTypes.includes(type));
    const url = hook.url || hook;
-    const wantsAck = !['call:status', 'verb:status', 'jambonz:error', 'llm:event', 'llm:tool-call'].includes(type);
+    const wantsAck = !MTYPE_WANTS_ACK.includes(type);

    if (this.maliciousClient) {
      this.logger.info({url: this.url}, 'WsRequestor:request - discarding msg to malicious client');
@@ -408,7 +422,7 @@ class WsRequestor extends BaseRequestor {

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

--- a/package-lock.json
+++ b/package-lock.json
@@ -15,10 +15,10 @@
        "@jambonz/http-health-check": "^0.0.1",
        "@jambonz/mw-registrar": "^0.2.7",
        "@jambonz/realtimedb-helpers": "^0.8.8",
-        "@jambonz/speech-utils": "^0.1.22",
+        "@jambonz/speech-utils": "^0.2.1",
        "@jambonz/stats-collector": "^0.1.10",
-        "@jambonz/time-series": "^0.2.9",
-        "@jambonz/verb-specifications": "^0.0.83",
+        "@jambonz/time-series": "^0.2.13",
+        "@jambonz/verb-specifications": "^0.0.91",
        "@opentelemetry/api": "^1.8.0",
        "@opentelemetry/exporter-jaeger": "^1.23.0",
        "@opentelemetry/exporter-trace-otlp-http": "^0.50.0",
@@ -31,7 +31,7 @@
        "bent": "^7.3.12",
        "debug": "^4.3.4",
        "deepcopy": "^2.1.0",
-        "drachtio-fsmrf": "^3.0.45",
+        "drachtio-fsmrf": "^3.0.46",
        "drachtio-srf": "^4.5.35",
        "express": "^4.19.2",
        "express-validator": "^7.0.1",
@@ -1379,6 +1379,95 @@
        "node": ">=6.9.0"
      }
    },
+    "node_modules/@cartesia/cartesia-js": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/@cartesia/cartesia-js/-/cartesia-js-2.1.1.tgz",
+      "integrity": "sha512-Kwcrxtay6G3hwFGyq7cwB00d+diABhi2/5Mb4vytmN+QqBgTAVYgwFweGnLDL9Ci9zFttgLE1rW8u+EA8U5P9A==",
+      "dependencies": {
+        "emittery": "^0.13.1",
+        "form-data": "^4.0.0",
+        "form-data-encoder": "^4.0.2",
+        "formdata-node": "^6.0.3",
+        "human-id": "^4.1.1",
+        "node-fetch": "2.7.0",
+        "qs": "6.11.2",
+        "readable-stream": "^4.5.2",
+        "url-join": "4.0.1",
+        "ws": "^8.15.13"
+      }
+    },
+    "node_modules/@cartesia/cartesia-js/node_modules/form-data": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.1.tgz",
+      "integrity": "sha512-tzN8e4TX8+kkxGPK8D5u0FNmjPUjw3lwC9lSLxxoB/+GtsJG91CO8bSWy73APlgAZzZbXEYZJuxjkHH2w+Ezhw==",
+      "license": "MIT",
+      "dependencies": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "mime-types": "^2.1.12"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
+    "node_modules/@cartesia/cartesia-js/node_modules/form-data-encoder": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/form-data-encoder/-/form-data-encoder-4.0.2.tgz",
+      "integrity": "sha512-KQVhvhK8ZkWzxKxOr56CPulAhH3dobtuQ4+hNQ+HekH/Wp5gSOafqRAeTphQUJAIk0GBvHZgJ2ZGRWd5kphMuw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 18"
+      }
+    },
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+      "version": "0.13.1",
+      "resolved": "https://registry.npmjs.org/emittery/-/emittery-0.13.1.tgz",
+      "integrity": "sha512-DeWwawk6r5yR9jFgnDKYt4sLS0LmHJJi3ZOnb5/JdbYwj3nW+FxQnHIjhBKz8YLC7oRNPVM9NQ47I3CVx34eqQ=="
+    },
    "emoji-regex": {
      "version": "8.0.0",
      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
@@ -13002,9 +13195,9 @@
      }
    },
    "express": {
-      "version": "4.21.1",
-      "resolved": "https://registry.npmjs.org/express/-/express-4.21.1.tgz",
-      "integrity": "sha512-YSFlK1Ee0/GC8QaO91tHcDxJiE/X4FbpAyQWkxAvG6AXCuR65YzK8ua6D9hvi/TzUfZMpc+BwuM1IPw8fmQBiQ==",
+      "version": "4.21.2",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.21.2.tgz",
+      "integrity": "sha512-28HqgMZAmih1Czt9ny7qr6ek2qddF4FclbMzwhCREB6OFfH+rXAnuNCwo1/wFvrtbgsQDb4kSbX9de9lFbrXnA==",
      "requires": {
        "accepts": "~1.3.8",
        "array-flatten": "1.1.1",
@@ -13025,7 +13218,7 @@
        "methods": "~1.1.2",
        "on-finished": "2.4.1",
        "parseurl": "~1.3.3",
-        "path-to-regexp": "0.1.10",
+        "path-to-regexp": "0.1.12",
        "proxy-addr": "~2.0.7",
        "qs": "6.13.0",
        "range-parser": "~1.2.1",
@@ -13662,6 +13855,11 @@
        "debug": "4"
      }
    },
+    "human-id": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/human-id/-/human-id-4.1.1.tgz",
+      "integrity": "sha512-3gKm/gCSUipeLsRYZbbdA1BD83lBoWUkZ7G9VFrhWPAU76KwYo5KR8V28bpoPm/ygy0x5/GCbpRQdY7VLYCoIg=="
+    },
    "humanize-ms": {
      "version": "1.2.1",
      "resolved": "https://registry.npmjs.org/humanize-ms/-/humanize-ms-1.2.1.tgz",
@@ -15148,9 +15346,9 @@
      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw=="
    },
    "path-to-regexp": {
-      "version": "0.1.10",
-      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.10.tgz",
-      "integrity": "sha512-7lf7qcQidTku0Gu3YDPc8DJ1q7OOucfa/BSsIwjuh56VU7katFvuM8hULfkwB3Fns/rsVF7PwPKVw1sl5KQS9w=="
+      "version": "0.1.12",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.12.tgz",
+      "integrity": "sha512-RA1GjUVMnvYFxuqovrEqZoxxW5NUZqbwKtYz/Tt7nXerk0LbLblQmrsgdeOxV5SFHf0UDggjS/bSeOZwt1pmEQ=="
    },
    "peek-readable": {
      "version": "4.1.0",
@@ -16370,6 +16568,11 @@
        "punycode": "^2.1.0"
      }
    },
+    "url-join": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/url-join/-/url-join-4.0.1.tgz",
+      "integrity": "sha512-jk1+QP6ZJqyOiuEI9AEWQfju/nB2Pw466kbA0LEZljHwKeMgd9WrAEgEGxjPDD2+TNbbb37rTyhEfrCXfuKXnA=="
+    },
    "url-parse": {
      "version": "1.5.10",
      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.10.tgz",
--- a/package.json
+++ b/package.json
@@ -31,10 +31,10 @@
    "@jambonz/http-health-check": "^0.0.1",
    "@jambonz/mw-registrar": "^0.2.7",
    "@jambonz/realtimedb-helpers": "^0.8.8",
-    "@jambonz/speech-utils": "^0.1.22",
+    "@jambonz/speech-utils": "^0.2.1",
    "@jambonz/stats-collector": "^0.1.10",
-    "@jambonz/time-series": "^0.2.9",
-    "@jambonz/verb-specifications": "^0.0.83",
+    "@jambonz/verb-specifications": "^0.0.91",
+    "@jambonz/time-series": "^0.2.13",
    "@opentelemetry/api": "^1.8.0",
    "@opentelemetry/exporter-jaeger": "^1.23.0",
    "@opentelemetry/exporter-trace-otlp-http": "^0.50.0",
@@ -47,7 +47,7 @@
    "bent": "^7.3.12",
    "debug": "^4.3.4",
    "deepcopy": "^2.1.0",
-    "drachtio-fsmrf": "^3.0.45",
+    "drachtio-fsmrf": "^3.0.46",
    "drachtio-srf": "^4.5.35",
    "express": "^4.19.2",
    "express-validator": "^7.0.1",
--- a/test/create-call-test.js
+++ b/test/create-call-test.js
@@ -222,3 +222,62 @@ test('test create-call app_json', async(t) => {
    t.error(err);
  }
 });
+
+test('test create-call timeLimit', async(t) => {
+  clearModule.all();
+  const {srf, disconnect} = require('../app');
+
+  try {
+    await connect(srf);
+
+
+    // GIVEN
+    let from = 'create-call-app-json';
+    let account_sid = 'bb845d4b-83a9-4cde-a6e9-50f3743bab3f';
+
+    // Give UAS app time to come up
+    const p = sippUac('uas.xml', '172.38.0.10', from);
+    await waitFor(1000);
+
+    const startTime = Date.now();
+
+    const app_json = `[
+      {
+        "verb": "pause",
+        "length": 7
+      }
+    ]`;
+
+    const post = bent('http://127.0.0.1:3000/', 'POST', 'json', 201);
+    post('v1/createCall', {
+      'account_sid':account_sid,
+      "call_hook": {
+        "url": "http://127.0.0.1:3100/",
+        "method": "POST",
+        "username": "username",
+        "password": "password"
+      },
+      app_json,
+      "from": from,
+      "to": {
+        "type": "phone",
+        "number": "15583084809"
+      },
+      "timeLimit": 1,
+      "speech_recognizer_vendor": "google",
+      "speech_recognizer_language": "en"
+    });
+
+    //THEN
+    await p;
+    const endTime = Date.now();
+
+    t.ok(endTime - startTime < 2000, 'create-call: timeLimit is respected');
+
+    disconnect();
+  } catch (err) {
+    console.log(`error received: ${err}`);
+    disconnect();
+    t.error(err);
+  }
+});
--- a/test/db/jambones-sql.sql
+++ b/test/db/jambones-sql.sql
@@ -351,6 +351,8 @@ speech_credential_sid CHAR(36) NOT NULL,
 model VARCHAR(512) NOT NULL,
 reported_usage ENUM('REPORTED_USAGE_UNSPECIFIED','REALTIME','OFFLINE') DEFAULT 'REALTIME',
 name VARCHAR(64) NOT NULL,
+voice_cloning_key MEDIUMTEXT,
+use_voice_cloning_key BOOLEAN DEFAULT false,
 PRIMARY KEY (google_custom_voice_sid)
 );
Author	SHA1	Message	Date
Sam Machin	f85b5f9a01	Update call-session.js	2025-01-10 13:56:43 +00:00
Dave Horton	6bad1a22f3	fix #1025 (#1026 ) * fix #1025 * redirect verb should be able to redirect to a new websocket endpoint	2025-01-09 15:45:20 -05:00
Hoan Luu Huu	fcefa1ff31	fix inband dtmf does not work in dial verb (#1018 )	2025-01-08 18:29:43 -05:00
Hoan Luu Huu	67cd53c930	rest:dial support timeLimit (#1024 ) * rest:dial support timeLimit * wip * wip * clear maxCallDuration timer	2025-01-07 12:21:09 -05:00
Dave Horton	a59784b8ab	update base image to node:20-alpine (#1022 )	2025-01-04 16:38:25 -05:00
Dave Horton	a2581eaeb4	tts throttling and send user_interruption event (#1019 ) * tts throttling and send user_interruption event * tts streaming: if we get a flush with tokens pending, send the flush after the tokens * wip	2025-01-04 16:34:01 -05:00
Dave Horton	3706aa4d98	#1020 - fix for sticky bargein (#1021 )	2025-01-03 10:41:35 -05:00
Dave Horton	25f1e65f63	feed TTS in sentence chunks when streaming (#1013 ) * feed TTS in sentence chunks when streaming * tts streaming: treat a paragraph as a chunk of text, even it not ending with a line end character * wip	2024-12-31 15:16:25 -05:00
rammohan-y	c9f0481ca6	feat/1009, sending reason in X-Reason header when AHD processor giveup (#1014 ) * feat/1009, sending reason in X-Reason header when AHD processor giveup is executed * fixed jslint error * added an alert	2024-12-31 15:09:23 -05:00
Hoan Luu Huu	564f6c9e55	support kill dial if sd ep is media timeout (#1001 ) * support kill dial if sd ep is media timeout * support kill dial if sd ep is media timeout * support kill dial if sd ep is media timeout * add media timeout reason header to bye message * wip * wip * make configuration for freeswitch media timeout * make configuration for freeswitch media timeout * wip	2024-12-23 07:19:41 -05:00
Dave Horton	02f25f8343	fix cartesia channel vars for streaming (#1012 )	2024-12-20 16:48:20 -05:00
Hoan Luu Huu	13ef89d605	support elevenlabs tts stream (#1011 ) * support elevenlabs tts stream * wip * wip	2024-12-20 09:50:13 -05:00
Dave Horton	d05e470867	remove hardcoding of openai model	2024-12-19 18:42:57 -05:00
Hoan Luu Huu	17250f8386	support cartesia tts (#1008 ) * support cartesia tts * update speech util version * update speech utils version	2024-12-19 07:35:47 -05:00
Dave Horton	ba3f46df64	Feat/tts streaming (#994 ) * wip * add TtsStreamingBuffer class to abstract handling of streaming tokens * wip * add throttling support * support background ttsStream (#995) * wip * add TtsStreamingBuffer class to abstract handling of streaming tokens * wip * support background ttsStream * wip --------- Co-authored-by: Dave Horton <daveh@beachdognet.com> * wip * dont send if we have nothing to send * initial testing with cartesia * wip --------- Co-authored-by: Hoan Luu Huu <110280845+xquanluu@users.noreply.github.com>	2024-12-18 14:44:37 -05:00
RJ Burnham	f37e1540ee	Make voicemail hints case insensitive (#1007 )	2024-12-13 13:42:29 -05:00
Dave Horton	5e04db82bf	Feat/deepgram voice agent (#1006 ) * wip * wip * wip	2024-12-13 10:05:23 -05:00
Dave Horton	0aa37a83ae	Feat/handle 3pcc invite (#1005 ) * wip * wip * linting	2024-12-12 18:39:15 -05:00
Hoan Luu Huu	c29ab0d858	support referBy display name (#1000 ) * support referBy display name * wip * update verb specification	2024-12-11 12:46:29 -05:00
Sam Machin	71d4c90cbc	catch error (#1002 ) * catch error * remove notifyTaskDone	2024-12-11 12:34:44 -05:00
Hoan Luu Huu	a929a649f9	fix ConfirmCallSession cannot be played (#993 ) * fix ConfirmCallSession cannot be played * fix review comments * fix review comments	2024-12-10 19:36:42 -05:00
Dave Horton	3bb4f1a29f	fix #998 incorrectly sending final transcript with is_final=false (#999 )	2024-12-10 18:48:02 -05:00
Hoan Luu Huu	54cc76606b	fix cannot replace endpoint for adulting session (#992 ) * fix cannot replace endpoint for adulting session * fix cannot replace endpoint for adulting session	2024-12-06 07:51:24 -05:00
rammohan-y	0458bb7d6c	Feat/884: Capture system_alert when feature-server is online or offline (#950 ) * writing alerts during startup and shutdown of feature-server * feat/884: created constants for system component name and state * feat/88: added 0.2.11 version of time-series * feat/884: renamed constant, and added GracefulShutdownInProgress system alert	2024-12-05 09:23:03 -05:00
Sam Machin	dce4fe1f82	Fix/986 (#990 ) * throw new NonFatalTask error on play file not found * linting * make SpeechCredentialError subclass of NonFatalTask error * cleanup * Update action-hook-delay.js * bump fsmrf version * linting and package-lock * Update package-lock.json * update error * only throw on fs error "File not found" * add alert * update time-series dep * Update package-lock.json * linting * Update play.js * remove stack trace from error message * fix error formatting	2024-12-04 05:47:49 -05:00
Hoan Luu Huu	e96c35d571	fixed iamrole from sessionToken to securityToken (#988 ) * fixed iamrole from sessionToken to securityToken * wip * support get aws credential from instance profile	2024-11-29 21:58:42 -05:00
Hoan Luu Huu	070671a3fb	support send refer custom header to referhook (#981 )	2024-11-28 08:34:34 -05:00
rammohan-y	efdb56f0a0	feat/971 - fix to allow hints objects array (#987 )	2024-11-28 07:25:10 -05:00
Hoan Luu Huu	e2edbb4a5b	support enable dtmf tone (#976 ) * support enable dtmf tone * wip * wip	2024-11-26 20:25:48 -05:00
Markus Frindt	3a6d63a1c6	Fix the issue for outbound calls that always the None credentials wer… (#984 ) * Fix the issue for outbound calls that always the None credentials were used. session:new for rest dial did not contain recognizer.label and synthesizer.label * update comment --------- Co-authored-by: mfrindt <m.frindt@cognigy.com>	2024-11-26 10:26:20 -05:00
rammohan-y	c874ab8100	feat/975: fixed continuous asr not stopping when asrDtmfTerminationDi… (#977 ) * feat/975: fixed continuous asr not stopping when asrDtmfTerminationDigit is configured * feat/975: giving first preference to asrDtmfTerminationDigit if there is already ASR happened	2024-11-26 08:23:11 -05:00
Dave Horton	24a66fed64	wip (#979 )	2024-11-19 09:37:00 -05:00
Hoan Luu Huu	c8c3738ae8	custom stt vendor ws connection should not be closed in asrTimeout (#973 )	2024-11-18 10:17:31 -05:00
Dave Horton	c1330d4651	fix transcribe fixes for speechmatics (#978 ) * fix transcribe fixes for speechmatics * update to verb-specs with fixes for speechmatics * add support for speechmatics translation * add handlers for receiving translations * call translation hookd * gather: no need to restart speechmatics after a final transcript during continuous asr * graceful shutdown * wip * wip * wip * wip * wip	2024-11-16 10:21:04 -05:00