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List:       sip-implementors
Subject:    Re: [Sip-implementors] How could a caller's UA send a BYE for earlydialogs?
From:       <sayan.chowdhury () wipro ! com>
Date:       2006-05-24 9:51:51
Message-ID: 897DA809E857CD40A8419CF517948E2101C43196 () blr-k1-msg ! wipro ! com
[Download RAW message or body]



CANCEL results in termination of invite transaction. Hence all the early
dialogs will be terminated if u send cancel.
But say , if you want to keep one of the early dialogs but want to
terminate  the other early dialogs you will send the bye on those
dialogs.


-----Original Message-----
From: sip-implementors-bounces@cs.columbia.edu
[mailto:sip-implementors-bounces@cs.columbia.edu] On Behalf Of Bu, Wen
Fei (Leo)
Sent: Wednesday, May 24, 2006 2:01 PM
To: sip-implementors@cs.columbia.edu
Subject: [Sip-implementors] How could a caller's UA send a BYE for
earlydialogs?

Per RFC 3261, 15 Termination a Session:
  The caller's UA MAY send a BYE for either confirmed or
  early dialogs, and the callee's UA MAY send a BYE on
  confirmed dialogs, but MUST NOT send a BYE on early dialogs.

How could a caller's UA send a BYE for early dialogs?
The caller's dialog is transmitted to confirmed state only after
receiving a 2xx for INVITE. If the caller's UA wants to terminate the
session before the final response, a CANCEL should be sent out instead
of a BYE.

Then in which case will the caller's UA send a BYE for early dialogs?

Thanks,

Leo, Bu

Plexus Signaling
Lucent Technologies Qingdao R&D
--------------------------------
Office:       +86 532 8861 5376
email/MSN:    wbu@lucent.com
--------------------------------


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