[OpenSER-Users] Radius accounting and Dialog

[David Villasmil]

On Thu, Jun 12, 2008 at 2:22 PM, Iñaki Baz Castillo <ibc at in.ilimit.es>
wrote:

> El Thursday 12 June 2008 14:06:22 David Villasmil escribió:
>
> > Regarding this, I know we could simply use the Dialog module to store al
> > dialogs on the dialog table, and use an external script to end the dialog
>
> How knows the external script where to generate the BYE?
>

Its very easy to do that, I understand that expired dialogs are reported on
the syslog, with that and openser fifo you can end a dialog by sending a BYE


>
> > On the other hand, Bogdan says it should work. Even if not ALL UACs do
> sent
> > the in-dialog-keep-alive, most of the should, as most adhere to RFCs. We
> > should try to get this working as it would solve not only mine, but a lot
> > of people's problems of calls dropped that can't be properly rated.
>
> Why not use SessiontTimers (RFC 4028) ?
> 99% of phones replies 200 to a re-INVITE.
>
>
> > I'm writing to the users list because I'm NOT that well versed on TM and
> > DIALOG's inner workings, and really wouldn't know where to start. Though
> > I'll start investigating on this.... Anyone wants to help?
>
> The problem is that you are addressing the problem in a privative way while
> there are RFC's and techniques for that. For your proposal using Session
> Timers should be the best option,


Are you talking, i.e. Asterisk?

but you need a UAS sending the re-INVITE's
> (at last one of both endpoinds). OpenSer cannot send it since it is a proxy
> so a B2BUA or gateway should doit.
> IMHO you are addressing the problem in the wrong place (but it could work
> of
> course).


I see what you're saying, problem with this is I don't WANT to HAVE to use
an asterisk or whatever... I want to depend only on Openser.


I believe I can be done with session timers, as you say. What I Don't KNOW
is whether there is a timer to ask the UAC to send us a kind of "keep-alive"
message. I don't know what that message is called, or what module creates
it.

The thing is:

What module's function to use to make the UAC send uns a "keep-alive" whilst
in a dialog every X senconds, setting a timeout for that keep-alive to be
sent and resetting it everytime it's received.

thanks to all.


David
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