[OpenSIPS-Users] MediaProxy Got traffic information for stream

Dan Pascu dan at ag-projects.com
Wed Apr 5 05:01:56 EDT 2017

On 31 Mar 2017, at 17:18, Andreas Bøckmann wrote:

> Hello,
> I am hoping somebody can explain to me how MediaProxy receives "traffic information" from OpenSIPS. 

Mediaproxy doesn't receive traffic information from OpenSIPS. Mediaproxy determines endpoint addresses based in received media from endpoints. If you see Unknown in those log lines from mediaproxy, it means it has not received any RTP/RTCP traffic from that endpoint, so it cannot determine where to forward the streams, thus no audio.

> I am trying to use two different GWs to reach PSTN but I am experiencing no-audio using one of them and the only thing I can see that is different is in MediaProxy logs.
> .
> The call flow is similar (late offer).
> ------> INVITE
> <----- 183/180
> <-----  200 OK SDP
> ------> ACK SDP
> Got traffic information for stream: (audio) Unknown (RTP:, RTCP: Unknown) <-> <-> <-> (RTP:, RTCP:
> Got traffic information for stream: (audio) Unknown (RTP:, RTCP: Unknown) <-> <-> <-> (RTP: Unknown, RTCP: Unknown)
> As I see this MediaProxy has all 3 relevant IPs in both cases; but it's not set in "RTP:" for the call which does not have audio so I am wondering how this can be? 
> What's the missing piece here so that MediaProxy knows "" is "RTP:" ?
> //Andreas
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