Here mentioned, each 2xx response is passed to upper layers for
processing. So no transactions are created.
17.1.1.2
Thus, each 2xx needs to be passed to a proxy
core (so that it can be forwarded) and to a UAC core (so it can be
acknowledged). No transaction layer processing takes place.
Whenever a response is received by the transport, if the transport
layer finds no matching client transaction (using the rules of
Section 17.1.3), the response is passed directly to the core. Since
the matching client transaction is destroyed by the first 2xx,
subsequent 2xx will find no match and therefore be passed to the
core.
13.2 (3261)
The UAC core considers the INVITE transaction completed 64*T1 seconds
after the reception of the first 2xx response. At this point all the
early dialogs that have not transitioned to established dialogs are
terminated. Once the INVITE transaction is considered completed by
the UAC core, no more new 2xx responses are expected to arrive.
Can somebody explain the case, where multiple 2xx responses create
multiple dialogs on UAC side, and results in multiple dialogs for the
same call same time. What I understood is when UAC receives first 2xx
response, it can't accept no more 2xx responses from above statement.
Thanks,
Anil
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rajeev
Seth
Sent: Thursday, June 16, 2005 3:19 AM
To: jaganmohan
Cc: [EMAIL PROTECTED];
[email protected]
Subject: Re: [Sip-implementors] doubt about handling of multiple
2xxresponses due to forked proxy
jaganmohan <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
06/16/2005 02:25 PM
To
[email protected]
cc
Subject
[Sip-implementors] doubt about handling of multiple 2xx responses due to
forked proxy
Hi all,
i have a doubt about handling of multiple 2xx responses
due to forked proxy
please clarify this
The UAC has sent an INVITE request and it is forked by
the proxyserver.
Question:
Does UAC is going to start any timer after receiveing
the
first 200OK
response,
as the transaction is ended after receiving the first
2xx
response?
===========================================
UAC will not know whether the proxy has forked the request or not.
Therefore it has to terminate the transaction as soon it gets a 2xx for
an
INVITE. However if the UAC receives another 2xx from different remote
UAs
(because the INVITE forked), it has to create a new transaction for
handling this 2xx. As per 3261 this will also result into a new dialog
being created at UAC (13.1)
--Rajeev--
===========================================
thanks in advance
JMR
jaganmohan <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
06/16/2005 02:25 PM
To
[email protected]
cc
Subject
[Sip-implementors] doubt about handling of multiple 2xx responses due to
forked proxy
Hi all,
i have a doubt about handling of multiple 2xx responses
due to forked proxy
please clarify this
The UAC has sent an INVITE request and it is forked by
the proxyserver.
Question:
Does UAC is going to start any timer after receiveing
the
first 200OK
response,
as the transaction is ended after receiving the first
2xx
response?
thanks in advance
JMR
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