Hi Christina, I think you are asking what should we do if want could not accept the SDP offer in following delay media case.
SWITCH ENDPOINT -> Invite w/o SDP <- Reliable 18x w/SDP offer -> PRACK w/SDP answer -> Cancel the call I prefer to cancel the call using Cancel message. Thanks, Ryan -------------------------------------------------- From: "christina yuen" <[EMAIL PROTECTED]> Sent: Monday, March 03, 2008 2:29 PM To: <[email protected]> Cc: <[EMAIL PROTECTED]> Subject: [Sip-implementors] what about swich behaviors when it receives an180 Ringing with an new SDP offer? > My understanding is > > 1> if an SDP offer received in a SIP request, such as all media > streams > in the SDP offer, => the SDP answer is returned in a 488 Not Acceptable > Here > response and a SIP607 log is generated. > > 2> If an SDP offer received in a provisional response, such as all > media > streams in the SDP offer, => it must be rejected, the SDP answer is > returned > in the PRACK. > > > > Now an new SDP offer is received in a provisional response, 180 Ringing, > then the switch should reject the SDP offer in PRACK. Do you think it is > right? Thanks. > > > > Christina > _______________________________________________ > 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
