We are using Kamailio as Webrtc to SIP proxy.

Clinet's Chrome browser needs to have rtcp-mux option to work correct, so we are adding it in RTPENGINE->WS direction as:

rtpengine_manage("trust-address replace-origin replace-session-connection rtcp-mux-offer rtcp-mux-accept ICE=force RTP/SAVPF");

Also we need to remove it in RTPENGINE->PSTN direction, we are trying to do it like this:

But it does not work for us and a=rtcp-mux option in SDP goes to the SIP provider.

Please help us to solve this!

BR,

Denys

 

PS.

Versions: Kamailio 4.4.5, rtpengine 5.2.1.0