A little late answer, but anyway... These two responses have different to-tags and are thus forking the call. The second dialog must be confirmed, and the first is still in early dialog, waiting for the 200OK. If it finally arrives, the UA should terminate that dialog with a BYE.
It is also so that the UAC must expect any number of new dialog-setup responses for 64*T1 milliseconds, i.e. more forks. Your system heavily violates the fundamentals of dialog setup! /John -----Ursprungligt meddelande----- Från: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] För Jesus Rodriguez Skickat: den 4 februari 2008 13:56 Till: [email protected] Ämne: [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 _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
