From 086ddb748bccf36a769fdf8f4525906bc4120e5a Mon Sep 17 00:00:00 2001
From: jakubkarolczyk <51345687+jakubkarolczyk@users.noreply.github.com>
Date: Fri, 4 Dec 2020 12:23:19 +0000
Subject: [PATCH] Update call.c

If the consecutive answer is from different media endpoint, then we need to check if rtcp-mux was offered initially by the client
---
 daemon/call.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/daemon/call.c b/daemon/call.c
index 4dcb54966a..d010782556 100644
--- a/daemon/call.c
+++ b/daemon/call.c
@@ -1653,6 +1653,11 @@ static void __rtcp_mux_logic(const struct sdp_ng_flags *flags, struct call_media
 	if (flags->opmode == OP_ANSWER) {
 		/* default is to go with the client's choice, unless we were instructed not
 		 * to do that in the offer (see below) */
+		
+		/* if the consecutive answer is from different media endpoint, then we need to check if rtcp-mux was offered initially by client */
+                if (MEDIA_ISSET(media, RTCP_MUX))
+                    return;
+		
 		if (!MEDIA_ISSET(other_media, RTCP_MUX_OVERRIDE))
 			bf_copy_same(&media->media_flags, &other_media->media_flags, MEDIA_FLAG_RTCP_MUX);