Hi Somesh, I agree with you, the early-dialog at that point can go on forever and the application ought to take care of that. However, it is not so unlikely to have at least one stateful proxy on the way to the UAS. In such a case, its TimerC would then eventually fire and the proxy itself would generate the CANCEL to drop the call. Not really something to rely upon, though.
Ettore Benedetti THALES COMMUNICATIONS B.V. Bestevaer 46, 1271 ZA Huizen The Netherlands Unclassified >>> Somesh S Shanbhag <[EMAIL PROTECTED]> 11/30/05 2:09:51 PM >>> Hi Suganya, As per RFC 3261, I think no timers are specified about this scenario. When 'A' receives the 180 from 'B' it moves to "Proceeding" state, wherein it expects some final response like 2xx - 6xx. Now, it's left to the UA implementation, that how far it has to wait and send the CANCEL. Someone, please correct me if I am wrong. Regds, Somesh S. Shanbhag --- suganya <[EMAIL PROTECTED]> wrote: > Hi all, > > Suppose A calls B. > > B responds with 180 Ringing. But does not send 200 > ok or 200 ok gets > lost. > > How long should A wait before sending Cancel / > Request timeout? > > > _______________________________________________ > Sip-implementors mailing list > [email protected] > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > ----------------------------------------- SIMPLICITY IS THE BEAUTY. BE NATURAL LIVE NATURAL. ----------------------------------------- Somesh S. Shanbhag Focus Area - VoIP Team (FA-VoIP) Mascon Global Communication Technologies Enterprise of Mascon Global Limited #59/2, 100Ft Ring Road Banashankari II stage Bangalore-560070 Karnataka INDIA Website: http://www.mgl.com/ ----------------------------------------- __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
