On Thu, Jun 12, 2008 at 2:22 PM, Iñaki Baz Castillo <ibc@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