[OpenSER-Users] Avoid Loops between Openser and Asterisk

[Iñaki Baz Castillo]

El Thursday 03 April 2008 07:50:17 Cosimo Fadda escribió:
> Hi everybody,
> I'm using Opeser as Proxy and one Asterisk as Gateway and Voicemail server.
> Suppose that an incoming calls arrives to Ser from Asterisk and the user
> is offline;
> Then Openser sends back the Invite to Asterisk that should activate the
> voicemail application but
> unfortunately it detects a Loop (482) and rejects the invite.
> I think I have to mangle the SIP message in Openser before the send to
> Asterisk again.

Asterisk FAILS detecting loop-back since your case is NOT a loop-back.
There is a patch to solve it but it's stopped. Anyway I tryed it with a 
concrete SVN version and it works:

  http://bugs.digium.com/view.php?id=7403

Also, I wrote (in Spanish) how to apply it:
  http://blog.aliax.net/2007/08/asterisk-parche-chansip-para-permitir.html



-- 
Iñaki Baz Castillo
ibc at in.ilimit.es