We have a SIP gateway behind NAT which I haven't been able to set up to work with Freeswitch. The configuration I thought would work is: <include> <gateway name="nat"> <param name="username" value="user"/> <param name="password" value="pass"/> <param name="realm" value="11.12.13.10"/> <param name="proxy" value="78.24.13.197"/> </gateway> </include> This, however, sends REGISTER sip:78.24.13.197;transport=udp SIP/2.0 whereas I need REGISTER sip:11.12.13.10;transport=udp SIP/2.0 When I set "register-proxy" to the public address (78.24.13.197) and comment the "proxy" param out, it successfully registers. Though any other SIP messages are sent to 11.12.13.10 which obviously fails. Basically what I need Freeswitch to do is to send everything to the public address, but put the private one everywhere in the SIP messages. How do I do this? Thanks, Jan