[Devel] Dialog module updating timeout value on PRACK

[Ovidiu Sas]

Hi all,

So ... what is the next step here?


Regards,
Ovidiu Sas

On 10/17/06, Bogdan-Andrei Iancu <bogdan at voice-system.ro> wrote:
> Hi Ron,
>
> I guess the easiest way to go at the moment will be to have a way to
> stop the PRACK to reset the timeout. I see to choices:
>     1) define as module parameter a mask of methods to be ignore at
> timeout update - is simple, fast but not so flexible
>     2) if the avp timeout is set to value 0, ignore it - more flexible.
>
> regards,
> bogdan
>
> Ron Winacott wrote:
>
> >On Thursday 05 October 2006 2:17 pm, Dan Pascu wrote:
> >
> >
> >>On Thursday 05 October 2006 20:58, Ron Winacott wrote:
> >>
> >>
> >>>Bogdan,
> >>>     With changes I am making to the SST module, I noticed that the dialog
> >>>module is updating the timeout value on a PRACK in the dlg_onroute()
> >>>callback. You ignore ACKs but you do not ignore PRACKs.  The fix is a
> >>>
> >>>
> >>PRACK as opposed to ACK is a method that has a reply. So if you do not
> >>reset the timeout, and the transaction timeouts before the PRACK answers
> >>comes back what will then happen with it?
> >>
> >>
> >>
> >
> >Good point, but the problem is the AVP I am using to set the dialog timeout
> >value is tied to the transaction, not the dialog. So the AVP is not available
> >after the INVITE/200 OK request/response when the PRACK is seen. So the PRACK
> >over writes the set timeout value of the dialog with the default value.
> >(killing any changes I have made at INVITE/200OK time via the dialog timeout
> >AVP)
> >
> >So, ether I need PRACK to stop resetting the dialog timeout or I need the AVP
> >to be bound to the dialog and not the transaction so the dialog module
> >will "remember" my value and not use the default.
> >
> >As for your question about what will happen, is if the dialog times out in the
> >middle of the PRACK/200OK transaction, then the dialog has timed out. In my
> >case the Session Expire time has been reached and the PROXY is in its right
> >to delete the dialog and free the resources because the session was not
> >renewed with a reINVITE/UPDATE.
> >
> >Comments?
> >
> >Thanks,
> >       ronw (karwin)
> >
> >
> >
>
>
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