No. Incase you have not seen it, the following draft is useful in clarifying offer/answer from rfc3261, rfc3262, rfc3264, and rfc3311: http://tools.ietf.org/html/draft-ietf-sipping-sip-offeranswer-07
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of Manpreet Singh > Sent: Sunday, April 13, 2008 12:29 AM > To: Paul Kyzivat > Cc: Bob Penfield; [EMAIL PROTECTED]; > [email protected] > Subject: Re: [Sip-implementors] Offer/Answer question > > Is this flow legal from offer answer perspective? ( just want > to make sure if UPDATE can carry an answer to the invite transaction ) > > --------->Invite with Offer > <---------180 Ringing ( no SDP ) > <----------UPDATE with answer? > ----------->200OK to update > <-----------200Ok for Invite ( another possible offer ? ) > ------------>ACK ( answer to offer in 200OK ) > > Thanks _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
