Hello Kasturi,
> This is a valid scenario when forking is done at the proxy or any > other > entity downstream. > > Forking can be sequential or parallel. In the example you have given > below the UAC shld treat as if forking was done upstream and must > honor > the > 200 ok and complete the dialog for that dialog-id. Regarding the > incomplete transaction for the first To-Tag it must terminate it. Thanks for clarification. Regards. Saludos JesusR. >> -----Original Message----- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On >> Behalf Of Jesus Rodriguez >> Sent: Monday, February 04, 2008 6:56 AM >> To: [email protected] >> Subject: [Sip-implementors] Change To-tag between 180 and 200 >> >> >> Hello, >> >> Is valid for an UAC to accept a 200OK coming from the UAS >> with a To- tag different than received in the previous 180?. >> This is the scenario: >> >> An INVITE is sent from an UAC to a proxy. The proxy proxies >> the INVITE to the UAS. The UAS sends a 100 and 180 to the >> proxy, which are resent to the UAC. The UAS does not "answer" >> the INVITE and the proxy times out the transaction. After >> that, the proxy (via CPL) sends the INVITE to another UAS >> which replies immediately with a 200OK that is proxied to the >> UAC. The UAC does not accept the 200OK because the To-tag it >> received in the 180 from the first UAS is different of the >> To-Tag received in the 200OK from the second UAS. >> >> Is this a valid behaviour or should the UAC accept the 200OK >> and update the internal "early dialog" state to a confirmed >> dialog using the To-tag of the 200OK sent by the second UAS?. >> >> Thanks. >> >> Saludos >> JesusR. >> >> ------------------------------------ >> Jesus Rodriguez >> VozTelecom Sistemas, S.L. >> [EMAIL PROTECTED] >> http://www.voztele.com >> Tel. 902360305 >> ------------------------------------- >> >> >> >> >> _______________________________________________ >> Sip-implementors mailing list >> [email protected] >> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors >> > > Saludos JesusR. ------------------------------------ Jesus Rodriguez VozTelecom Sistemas, S.L. [EMAIL PROTECTED] http://www.voztele.com Tel. 902360305 ------------------------------------- _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
