Hi,
I am really sorry, I took the question in a different meaning.
Since a UAC can potentially reach multiple hosts using the same INVITE and
therefore multiple calls can be created. Which one it accepts and which ones
it dosen't is its own decision. If early dialogs are created and a 2xx is
received on one of them, then the UAC
(1) Can wait for an implementation defined "Ringing Timer" (the time it
allows the terminal to ring after getting a 1xx). Maybe 64*T1 for 2xx
responses on other dialogs, in case it decides not to finalize the dialog on
which the 2xx was first received.
(2) Can terminate the Dialog immediately after getting a 2xx by sending a
BYE implying the first 2xx received was finalized.
Either ways, I feel the UAC SHOULD send a BYE to clean up the Peer Network
early dialogs gracefully which have nbot been responded at the time of
making the cleanup decision.
Rgds,
Manju
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-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Sigrid Thijs
Sent: Tuesday, April 04, 2006 3:53 PM
To: [email protected]
Subject: [Sip-implementors] Forking: early dialog termination
Hi,
I'm sorry if this has been asked before, but I haven't found a real
answer to this question.
According to RFC 3261:
If the forwarded response was a final response, the proxy MUST
generate a CANCEL request for all pending client transactions
associated with this response context.
What is the desired behavior for the UAC?
- non-2xx response: all early dialogs are considered terminated
- 2xx response: early dialogs are terminated 64*T1 seconds after the
reception of the first 2xx response
Does the UAC need to terminate these early dialogs by sending a BYE
request, or should it just discard the early dialogs?
--
kind regards,
Sigrid Thijs
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