Register your sip trunks via a sip proxy

Hello All,

Does anyone have experience with using a SIP Proxy with FreePBX for registering trunks?

I want to have a separate machine that registered my sip trunks. Then my FreePBX install will then register with the SIP proxy on my local LAN. So my FreePBX system only sees one system.

I think I may be able to use a second install of FreePBX to be my proxy. Or maybe some other more light weight proxy server.

-mark

Asterisk is a back2back user agent so cannot be use as a proxy, I use

http://www.kamailio.org/

If you have a very simple use-case then

http://siproxd.sourceforge.net/

might be all you need.