changes to go from no-media to full-media

lib/call-session.js

@@ -9,6 +9,7 @@ const {
   makeFullMediaReleaseKey,
   makePartnerFullMediaReleaseKey
 } = require('./utils');
+const { MediaPath } = require('./constants.json');
 const {forwardInDialogRequests} = require('drachtio-fn-b2b-sugar');
 const {SipError, stringifyUri, parseUri} = require('drachtio-srf');
 const debug = require('debug')('jambonz:sbc-outbound');
@@ -132,7 +133,8 @@ class CallSession extends Emitter {
     this.lookupSipGatewaysByCarrier = lookupSipGatewaysByCarrier;
     this.lookupCarrierByAccountLcr = lookupCarrierByAccountLcr;
 
-    this._mediaReleased = false;
+    this._mediaPath = MediaPath.FullMedia;
+
     this.recordingNoAnswerTimeout = (process.env.JAMBONES_RECORDING_NO_ANSWER_TIMEOUT || 2) * 1000;
   }
 
@@ -153,7 +155,7 @@ class CallSession extends Emitter {
   }
 
   get isMediaReleased() {
-    return this._mediaReleased;
+    return this._mediaPath !== MediaPath.FullMedia;
   }
 
   subscribeForDTMF(dlg) {
@@ -847,7 +849,7 @@ Duration=${payload.duration} `
         this.rtpEngineResource.destroy().catch((err) => {
           this.logger.info({err}, 'Error destroying rtpengine resource after full media release');
         });
-        this._fullMediaReleased = true;
+        this._mediaPath = MediaPath.NoMedia;
         return;
       }
 
@@ -878,7 +880,9 @@ Duration=${payload.duration} `
       let sdp;
       //HL 2024-11-13: previously forwarded re-invites to webrtc clients but further testing has shown to be unnecessary
       //if (isReleasingMedia && !this.calleeIsUsingSrtp) {
-      if (isReleasingMedia) {
+
+      //DH 2024-11- 18: if we are going from no-media to either partial or full media, we need reinvite the far end
+      if (isReleasingMedia && this._mediaPath !== MediaPath.NoMedia) {
         this.logger.info(`got a reinvite from FS to ${reason}`);
         sdp = dlg.other.remote.sdp;
         if (!answerMedia.flags.includes('port latching')) answerMedia.flags.push('port latching');

lib/constants.json

@@ -0,0 +1,7 @@
+{
+  "MediaPath": {
+  "NoMedia": "no-media",
+  "PartialMedia": "partial-media",
+  "FullMedia": "full-media"
+  }
+}