2 Jul
2010
2 Jul
'10
10:03 a.m.
David,
On 07/01/2010 09:19 PM, David wrote:
Hello,
I have setup an application level gateway that bridges my two networks.
I have a situation where an INVITE will cross the gateway ( thus
rewriting the SDP ) go through a proxy and come back across the gateway.
At this point, it would be wasteful to use the RTP Proxy as the audio
will be between two devices on the same network.
Is there a command I can execute as the INVITE comes back to cancel the
changes made by RTP Proxy ?
What precisely do you mean when you say "come back across the
gateway?" Are you referring to a spiral, i.e.
INVITE (source) --> proxy (+ rtpproxy) --> proxy --> proxy (+
rtpproxy)
If so, why would the second situation be topologically different
relative to the first situation? And why is the call flow like that?
Either way, you can embed the old SDP into the INVITE as a custom
header (append_hf() from textops) and then run fix_nated_sdp() with
arguments extracted from that custom header to revert the changes.
But this requirement seems strange to me; perhaps there is a better
way to do it?
--
Alex Balashov - Principal
Evariste Systems LLC
1170 Peachtree Street
12th Floor, Suite 1200
Atlanta, GA 30309
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/