In the latest release of chan_sip2 I've added support for SIP Outbound Proxy. I've seen a lot of requests for that lately, so if you can test this and confirm wheather it works for you or not, I'll be grateful. If I get positive reports, we'll try to add this to chan_sip in CVS. It works like this: * Configure outboundproxy in the general section of sip.conf outboundproxy = <hostname or IP> outboundproxyport = <port #> (defaults to 5060) All SIP communication are now sent to the proxy IP If you configure localnet= networks, these are excluded, so only outbound traffic goes to the outbound proxy. If this works, we might try to add support for peer-specific outbound proxies to be able to handle FWD and other providers with NAT traversal support through outbound proxies. http://bugs.digium.com/bug_view_page.php?bug_id=0000759 Enjoy! /Olle