Hi Daniel, My clients don't do anything when IP change occurs.From what I inspect, it is because of rtpproxy does not accept the 2nd IP change. The the rtpproxy protocol document http://www.rtpproxy.org/wiki/RTPproxy/Protocol, the Update and Lookup command have [arg] parameters. U[args] callid addr port from_tag [to_tag [notify_socket [notify_args]]] L[args] callid addr port from_tag to_tag
I see Kamailio often send Uc and Lc to rtpproxy. I still can't find out what these arg mean, but maybe it's the point On Wed, Aug 14, 2013 at 3:31 PM, Daniel-Constantin Mierla <mico...@gmail.com > wrote: > Hello, > > > On 8/13/13 5:56 AM, Khoa Pham wrote: > > I have SIP proxy (Kamailio) works in conjunction with > rtpproxy<http://www.rtpproxy.org/> to > support client communication. When SIP proxy sends command to rtpproxy to > create new session, rtpproxy will create 2 ports (let's called them port1 > and port2). rtpproxy has 1 listen interface > > Supposed A and B are 2 clients that use rtpproxy to relay RTP stream, and > works fine. > > A <---> port1 [*rtpproxy*] port2 <---> B > > Now that A loses his current network, and enter network2 (imagine a > network handover) to become A2. In this case, I see rtpproxy still works > fine by relaying stream between A2 and B > > A2 <---> port1 [*rtpproxy*] port2 <---> B > > But when A2 lose his network2 and enters network3 to become A3, rtpproxy > stills relay stream between A2 and B. It seems that A can change his > network only once. > > A2 <---> port1 [*rtpproxy*] port2 <---> B > > A3 > > Why did the first handover succeed? How can I change rtpproxy behavior to > support many handovers ? > > what I expect that happened between A and A2 is that the client > application sent a re-INVITE with its new IP address. But then it didn't > happen when going to A3. Rtpproxy itself can do nothing here. You should > look at sip traffic to see what happens. > > Cheers, > Daniel > > -- > Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda > - http://www.linkedin.com/in/miconda > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > -- Khoa Pham HCMC University of Science www.fantageek.com
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