Hello Atul , Pleas see inline .. Regards , Sayan
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Atul Edlabadkar Sent: Thursday, July 14, 2005 9:56 AM To: [email protected] Subject: [Sip-implementors] How to handle timeout... Hi, I would appreciate if somebody can commet on following callflows: UAC UAS --------INVITE------> <-------100---------- <-------180---------- --------timeout------ I see the SIP Stack used by UAC generate timeout event and remove the dialog. Isn't the UAC supposed to send CANCEL and then process 200 OK and 487 for CANCEL in this case? <sayan> Yes , in this situation. The 200 OK is for the CANCEL and 487 is for the the INVITE transaction. The UAC can also send a BYE if the 1xx responses established an early dialog. </sayan> Also how Re-invite timeout should be handled in an established dialog. The stack seems to remove the dialog in that case as well. <sayan> Did not get you here ...The UAS should move the dialog to confirmed state and surely not remove it on receipt of a 200 OK for INVITE on the ? Once a dialog is established , any re-transmission is passed directly to the TU. Problem is since the re-transmission doesn't match any dialog because it has only the FROM tag it is treated as a new request. See this discussion for more details. http://www1.ietf.org/mail-archive/web/sip/current/msg11471.html </sayan> Thanks, Atul _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Wipro or [EMAIL PROTECTED] immediately and destroy all copies of this message and any attachments. _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
