[SR-Users] One way audio calls

[Will Ferrer]

Hi All

We are experiencing an odd problem with 1 way audio in about %6-%8 of our
calls.

It seems to me that what is happening is that our kamailio installation
(using rtpengine) is some times ignoring the c= attribute that the carrier
is sending us, and sending our audio instead to either address in the
carriers o= attribute, or just to the same address we sent our sip invite
too.

We have looked at hundreds of calls and haven't found a reliable pattern
why this happens some times and not others. It really happens in a lot of
different scenarios with lots of different carriers and differently
formatted SDP packets.

I was wondering if any one had an idea where to start for a solution, or a
way to make rtpengine always send audio to the ip in the c= attribute we
are receiving from the carrier.

I haven't been able to find anything so far.

Thank you much for any assistance.

All the best.

Will
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