[OpenSIPS-Users] only 4x ring try.

[Iñaki Baz Castillo]

El Martes, 13 de Octubre de 2009, Jeff Pyle escribió:
> It could be the TM module modparam "fr_inv_timer", or perhaps the
> "fr_inv_timer_avp" doing the same thing dynamcally.  If you're seeing
> Opensips send a CANCEL towards the UAS and a 408 towards the UAC this seems
> the logical cause.

Yes, however those parameters require custom configuration as with the default 
values they allow more than "4 rings" on a phone :)

So IMHO what's happening is that the caller is cancelling the call after those 
"4 rings". For that, the mail sender could inspect the SIP flow (with ngrep or 
ethereal) in order to know if OpenSIPS is receiving a CANCEL from the caller.

Regards.



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