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Re: [Partysip-dev] Is the statefull module aware whether a incoming req

From: Aymeric Moizard
Subject: Re: [Partysip-dev] Is the statefull module aware whether a incoming request(INFO or re-INVITE) is for a existing call session?
Date: Wed, 29 Jan 2003 23:03:21 +0100 (CET)

If messages within a call are sent to a proxy, that means you have
record route enabled. In this case, the Route header (or the
request-uri for rfc2543 ua) will contains the psp="...." parameter.

This way, the INFO is routed and the psp params tells you that this
message is within a call.

But no sessions is stored in partysip. The "statefull" words means
partysip is "transaction statefull". Not call statefull.

In the experimental NAT version, the notion of call exist. You
can look at it.


On Wed, 29 Jan 2003, Roland Zheng wrote:

> Hello,

>     In my proxy server, I need to handle some SIP message which
> happens after a call session is established.  For example, after a
> call established, a UA send a INFO message during the call to other
> side. My proxy server needs to find out which call session is
> associated with this INFO, and then do some further process.

>   My question is:
>     how to find the the existing call session which the INFO associated to?
>    And how to implement it?
>     Do I need to add another plugin? do I need to modify something in the 
> statefull module?
> Thank you,
> Roland

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