Hello Vineet, If the meaning of "I believe I have assumes that SIP sends only one codec once rather than a set of them" words is sending single codec in Offer then you are wrong. You can send any number of codecs what the device supports in your offer. If not please clarify me the meaning of your. In the scenario B should reject the Invite with 488 response.
Thanks, Sreenath ________________________________ From: Vineet Menon <[email protected]> To: "[email protected]" <[email protected]> Sent: Monday, 6 February 2012 10:20 PM Subject: [Sip-implementors] Capability negotiation in SIP 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? 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? Regards, Vineet Menon _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
