[OpenSIPS-Users] Restrict Simultaneous-Use

[Iñaki Baz Castillo]

2009/3/5 Brett Nemeroff <brett at nemeroff.com>:
> 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.

Sure, but keep in mind that a proxy CANNOT generate in-dialog
requests, so SessionTimers must be suppoerted (and enabled) in caller
and/or callee. If no one of them supports/uses SST then the proxy can
do *nothing*.
For example, a B2BUA *can* use SST in both legs to check the dialog
state since a B2BUA behaves as a callee for the caller and as a caller
for the callee. This is never possible with a proxy.


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

Use local_route to account it as any other BYE.

-- 
Iñaki Baz Castillo
<ibc at aliax.net>