From e00379d1192c37fb1d75cbf65a289bb4e5bd6b14 Mon Sep 17 00:00:00 2001
From: Hoan Luu Huu <110280845+xquanluu@users.noreply.github.com>
Date: Thu, 13 Apr 2023 18:43:29 +0700
Subject: [PATCH] update media session to callee (#78)

---
 lib/call-session.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/call-session.js b/lib/call-session.js
index 37af179..5dc1a16 100644
--- a/lib/call-session.js
+++ b/lib/call-session.js
@@ -107,6 +107,11 @@ class CallSession extends Emitter {
     return this._mediaReleased;
   }
 
+  get calleeIsUsingSrtp() {
+    const tp = this.rtpEngineOpts?.uac?.mediaOpts['transport-protocol'];
+    return tp && -1 !== tp.indexOf('SAVP');
+  }
+
   subscribeForDTMF(dlg) {
     if (!this._subscribedForDTMF) {
       this._subscribedForDTMF = true;
@@ -627,7 +632,7 @@ Duration=${payload.duration} `
 
       /* if this is a re-invite from the FS to change media anchoring, avoid sending the reinvite out */
       let sdp;
-      if (isReleasingMedia) {
+      if (isReleasingMedia && !this.calleeIsUsingSrtp) {
         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');