[SR-Users] [Kamailio-Users] Exotic case (but real) in which RtpProxy doesn't work

Andreas Heise aheise.lists at googlemail.com
Sat Apr 24 10:49:10 CEST 2010


Hello Iñaki,

did you fixed your issue? I'll also connect an OmniPCX pbx which maintain
the session
after forward / transfer and would be interested in a working config example
for the
SR/RTPproxy part. OmniPCX SIP config is clear as it's my daily business ;-)

thanks in advance,
Andreas

2010/2/26 Iñaki Baz Castillo <ibc at aliax.net>

> El Viernes, 26 de Febrero de 2010, Daniel-Constantin Mierla escribió:
> > On 02/26/2010 03:09 PM, Iñaki Baz Castillo wrote:
> > > El Viernes, 26 de Febrero de 2010, Daniel-Constantin Mierla escribió:
> > >> Do you re-engage rtpproxy for re-INVITEs?
> > >
> > > Yes, the client is behind NAT so I must use RtpProxy for initial
> INVITE.
> > > Then, if I don't re-engage rtpproxy for re-INVITE RtpProxy would
> receive
> > > RTP in already working ports but from a different source, so RtpProxy
> > > would reject/ignore such RTP traffic.
> > >
> > >> Also, have you played with
> > >> force rtp proxy flags to trust public addresses?
> > >
> > > But that wouldn't solve the problem, am I wrong?
> >
> > there is a deadlock when chaining two rtpproxy. In learning mode
> > rtpproxy waits for the other side to send first packet to know the ip
> > and port. iirc it is r flag to avoid this.
>
> Interesting, I'll try it and will comment the result.
>
> Thanks.
>
>
> --
> Iñaki Baz Castillo <ibc at aliax.net>
>
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