[OpenSIPS-Users] PRACK mid-call

Brett Nemeroff brett at nemeroff.com
Mon Apr 22 11:16:31 CEST 2013


Hey All,
I'm having a weird issue right now. I have a particular call flow that
includes a PRACK. The first PRACK setups just when it show and is replied
with a 200 ok end to end.

Some time later, OpenSIPs retransmits the PRACK... After the call is
answered. Yes, OpenSIPs relayed the 200 OK for the PRACK already. So I'm
not sure what it's thinking.

Of course, the mid-call PRACK makes endpoints unhappy so the call ends up
getting dropped.

Anyone seen this? Of course, I'm assuming that the PRACK that appears to be
generated from the proxy mid-call is a retransmission because I can't think
of where else it'd be coming from (it's NOT resend from the originator).
Thanks all!


Thanks,
Brett
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