[SR-Users] One way audio calls

[Javier Ricke]

u job behind nat?

2014-11-19 3:13 GMT-03:00 Will Ferrer <will.ferrer at switchsoft.com>:

> 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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