From ae688ddc7eefca795d36b5654145ef92b7330db0 Mon Sep 17 00:00:00 2001
From: Dave Horton <daveh@beachdognet.com>
Date: Fri, 17 Feb 2023 09:12:54 -0500
Subject: [PATCH] when handling reinvites for SIPREC incoming calls just
 respond 200 OK with existing sdp

---
 lib/session/call-session.js | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/lib/session/call-session.js b/lib/session/call-session.js
index be9fc8da..0475d388 100644
--- a/lib/session/call-session.js
+++ b/lib/session/call-session.js
@@ -1450,9 +1450,15 @@ class CallSession extends Emitter {
   async _onReinvite(req, res) {
     try {
       if (this.ep) {
-        const newSdp = await this.ep.modify(req.body);
-        res.send(200, {body: newSdp});
-        this.logger.info({offer: req.body, answer: newSdp}, 'handling reINVITE');
+        if (this.isSipRecCallSession) {
+          this.logger.info('handling reINVITE for siprec call');
+          res.send(200, {body: this.ep.local.sdp});
+        }
+        else {
+          const newSdp = await this.ep.modify(req.body);
+          res.send(200, {body: newSdp});
+          this.logger.info({offer: req.body, answer: newSdp}, 'handling reINVITE');
+        }
       }
       else if (this.currentTask && this.currentTask.name === TaskName.Dial) {
         this.logger.info('handling reINVITE after media has been released');