Hi Kiran Section 8.1.3.4 of RFC 3261 also states the following:
"In all other respects, requests sent upon receipt of a redirect response SHOULD re-use the header fields and bodies of the original request." For Via branch, RFC 3261 mandates a new branch parameter, for Call-ID, To and From, RFC 3261 recommends reuse. IMO, you can extrapolate this recommendation for CSeq too. You may / may not use the same CSeq in the redirected Invite. Hope it helps. Regards, Tarun Gupta Aricent -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of kiran kumar Sent: Tuesday, June 05, 2012 11:01 AM To: sip-implementors Subject: [Sip-implementors] Reg Cseq value for processing 3xx responses. Hi all, I have a doubt regarding Cseq value while processing 3xx responses. According to RFC 3261 8.1.3.4 the new invite request for the redirected address can use the same Cseq value. According to RFC 3665 3.6 call flows, the CSeq value is incremented for the new invite request while processing the 3xx response. Is it mandatory to increment the CSeq value in this scenario ? Thanks, Kiran. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors =============================================================================== Please refer to http://www.aricent.com/legal/email_disclaimer.html for important disclosures regarding this electronic communication. =============================================================================== _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
