[asterisk-users] SIP outboundproxy for asterisk

Amit Nagpal
Fri, 18 Apr 2008 04:25:06 -0000

Hi,

I have searched through the archives on this mailing list, but didn't
find a solution to the outboundproxy problem. Can someone please help?

I wish to configure Asterisk such that all outgoing SIP requests get
relayed to an outboundproxy, instead of the actual recipient directly.

In my setup, I wish to use OpenSER as an outboundproxy that is running
on the same box and network-interface as Asterisk itself, but listening
on a different SIP port.

I have tried the following, but none has worked:

1) Specify an outboundproxy in sip.conf
[general]
Outboundproxy=10.1.1.102

Asterisk still goes out to the callee directly.

2) I tried the following as well:
exten => _.,n,Dial(SIP/10.1.1.102/${EXTEN}@${SIPDOMAIN})

In this case OpenSER receives an INVITE with a RURI as ->

INVITE 10.1.1.102/user at external.com

Which obviously is not successfully parsed by OpenSER.

Can you please help me configure Asterisk to use my OpenSER as an
Outboundproxy for all outgoing call legs?

Thanks in advance,
Regards,
Amit.