>>1) You receive a 180 wihout Contact and Record-Route. >>2) Later a 183: >>3) Later a 183: >>4) Later a 200:
Question: Are your four responses on the same fork? Regards, Attila -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Iñaki Baz Castillo Sent: 21 August 2008 15:36 To: [email protected] Subject: Re: [Sip-implementors] rfc3261 section 13.2.2.4: INVITE 2xx impacts El Thursday 21 August 2008 16:15:25 Brett Tate escribió: > Is the following what rfc3261 is attempting to communicate? I think so but just a question: > 1) Dialog forming INVITE 1xx/2xx creates route set based upon > record-route and sets remote target per Contact. > > 2) Original INVITE's subsequent 101-199 has no impact upon a known > dialog's route set and remote target. > > 3) Original INVITE's 2xx resets route set per received/missing > record-route and does not set (or update) per Contact. > > 4) Retargeting (excluding original INVITE) request's 2xx within dialog > allow the remote target to be updated. 1) You receive a 180 wihout Contact and Record-Route. 2) Later a 183: Record-Route: <sip:server1> 3) Later a 183: Record-Route: <sip:server2> Contact: sip:[EMAIL PROTECTED] 4) Later a 200: Record-Route: <sip:server3> Contact: sip:[EMAIL PROTECTED] So the dialog data for the UAC will be: - route set: <sip:server3> - remote target: [EMAIL PROTECTED] Explanation: 1) route set and remote target is null: - route set: null - remote target: null 2) Is a 1xx with "RR" so sets route set: - route set: <sip:server1> - remote target: null 3) Is a 1xx with "Contact" and "RR". remote set is not updated since it already exists. Sets remote target: - route set: <sip:server1> - remote target: [EMAIL PROTECTED] 4) Is a 2xx with "Contact" and "RR". route set is updated since it's a 2xx. remote target is not updated since it already exists. - route set: <sip:server3> - remote target: [EMAIL PROTECTED] Is it correct? In this case... WHY IS SIP SOOOOOOO COMPLEX??? -- Iñaki Baz Castillo [EMAIL PROTECTED] _______________________________________________ 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
