Hi, On Feb 6, 2012, at 5:50 PM, Vineet Menon wrote:
> Hi, > > Can somebody tell me what is the scope of capability negotiation in SIP? > Take this scenario, > A --------------------Invite with H.264 > codec------- > B > A <------------------200 OK with H.261 > codec----- A > > What will be the codec used in this case? > There is no compatible codec, so the call must be terminated. > I believe I have assumes that SIP sends only one codec once rather than a > set of them! So I expect the call to get rejected!!! > > Am I correct?? And waht kind of message is sent to indicate that capability > negotiation has failed? > B should have replied with 488, but assuming it's a bogus device which replied with 200, A should immediately send a BYE to end the session, since there is no way for that session to succeed in the media plane. Regards, -- Saúl Ibarra Corretgé AG Projects _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
