[SR-Users] rtcp-mux policy for RTPengine module

Yuriy Gorlichenko ovoshlook at gmail.com
Fri Oct 13 23:12:44 CEST 2017


Sorry:
small fix
webRTC clients accepts
a=rtcp:<port>
but port suppose should be same with
m=audio

2017-10-13 22:58 GMT+03:00 Yuriy Gorlichenko <ovoshlook at gmail.com>:

> Hi all!
> Some time ago Chromium browser sets rtcpMuxPolicy: required by default
> (soon on Chrome 58)
> It means that webRTC based clients not accepts
> a=rtcp:31757
> And uses for RTP and RTCP multiplexing at one port
>
> Main trouble that i found: calls between original SIP client and webRTC
> client (SIP client is initiator of call)
>
> When sip client sends invite it has
> a=rtcp:33445
> Means it wants 2 different prots for RTCP and RTP
>
> As expected for this case webRTC client says 488 Not accessible here
> instead of 200 resonse
>
> I suppose rtpengine module should hept to handle it but i can not find any
> key how to do it
>
> I added form rtpengine_manage()
> rtcp-mux-offer and rtcp-mux-accept but it only adds "a=rtcp-mux"
> But not removes a=rtcp and ice cadidate prepeared for it.
>
> Suppose removing a=rtcp:12345 will gives just an issue for RTP session.
>
> Does rtpengine module have some keys for resole this issue?
>
>
>
>
>
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