[OpenSIPS-Users] Restrict Simultaneous-Use

[Brett Nemeroff]

Question, do SST help the situation? Is it widely accepted enough in the
protocol to provide some backup mechanism to maintaining dialog state in the
event of a lost BYE.

BTW, how is a BYE accounted for in ACC when generated locally because of an
expired dialog?


On Thu, Mar 5, 2009 at 10:00 AM, Bogdan-Andrei Iancu <bogdan at voice-system.ro
> wrote:

> Iñaki Baz Castillo wrote:
> > 2009/3/5 Bogdan-Andrei Iancu <bogdan at voice-system.ro>:
> >
> >> Hi Inaki,
> >>
> >> This is an old, hot topic.
> >>
> >> There are many services that are more appropriate via a B2BUA  (like
> acc,
> >> dialog stuff, security, etc) - last time the discussion started from the
> >> question if a proxy is the best place to do accounting.
> >>
> >> In all the case is about compromising - how much you are willing to
> lose.
> >> You may loose time/resources to build and implement a platform were
> there is
> >> no way for bad thinks to happen (you deal with all corner cases) - and
> you
> >> end up with a huge platform, very complex, difficult to maintain,
> expensive
> >> to run, etc .
> >>
> >> Or you can loose some corner cases and build a simpler and more
> efficient
> >> platform.
> >>
> >
> > Yes Bogdan, also the approach described in the wiki is really
> > appropiate and valid when the caller or callee is a PSTN gateway which
> > sends a BYE if RTP is lost.
> >
> > But as always, pure "Internet" calls (between users) are really
> > difficult to monitorize and control by a proxy.
> >
>
> I agree on this. But this is SIP - from signalling level only you do not
> have information about the call status (during the call).
>
> Regards,
> Bogdan
>
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