I am attempting to route local registered users to
local registered users without going to the media server. I have
a media server [*] for PSTN. But it doesn't support all the
CODECS i wan't to use. Signalling seems fine, but i get NO AUDIO
on either call leg. I have the RTP captures from the local side
making the call and the media packets seem to be going exactly
where the SDP dictates. So i'm a little confused. Is this where
an RTP Proxy would come in handy? I haven't been able to get the
audio to work without going to the media server.
If an RTP Proxy is the answer, how much overhead does the
proxy add to the Kamailio server?
Is it something that you don't run on the same machine and
use a distributed environment of RTP proxies on other servers?
Or is this something that should be fine and working without
a media proxy?
if users are behind nat, then you have to do rtp relay. Either the
media servers support COMEDIA extension and you have to enforce that
in the sdp or you have to use rtpproxy.