Hi Chen-Che,
I used to have the same problem a few days ago, and I just stoped to use
fix_nated_sdp.
If you use rtp_proxy_offer and rtp_proxy_answer with correct parameters
(assuming that rtpproxy works in bridge mode : ei, ie, ee or ii), you
don't need "fix_nated_sdp" function.
In my environment, it works without fix_nated_sdp and a have a mhomed
opensips too.
Best regards,
Cédric
Le 10/04/2013 12:06, microx a écrit :
Hi all,
In my environment, an RTP proxy has an internal interface (192.168.x.x for
connecting with SIP proxy server) and an external interface (60.61.x.x for
relaying media packets between outside UAs). When receiving an INVITE
request, the SIP proxy server calls set_rtp_proxy_set & rtp_proxy_offer for
RTPProxy offering and then uses fix_nated_sdp to modify the media IP (c=)
and origin description (o=) with the external interface (60.61.x.x).
However, when I use fix_nated_sdp("2", "60.61.x.x") or fix_nated_sdp("10",
"60.61.x.x"), the connection information in SDP header (media IP) will be
"192.168.x.x60.61.x.x" rather than only 60.61.x.x. I though that
192.168.x.x. should be replaced with 60.61.x.x. I find an early post
(http://opensips-open-sip-server.1449251.n2.nabble.com/rtp-proxy-issue-td3741507.html#a3742531)
where one encountered a similar issue. The version of OpenSIPS I use is
1.9.0. Is the way I set the flag or IP wrong? Can someone give me a hint?
Many thanks in advance.
Best wishes
Chen-Che
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