Sorry to spam all 3 boards at the same time… I know there are smart people on these lists and hoping that one might be willing to send an example config to assist a n00b to SER.

I need to configure a proxy (like SBC) to listen on port X – where X is not 5060.

I want the UAC's registration to be forwarded (NOT REDIRECT) to the real SIP server on port 5060

The far end is not an Asterisk server – so any examples of Asterisk do not work. It is not IP auth – the authentication relies in the far end.

Open to any solution of open source software K/OpenSIPS/OpenSBC etc.

IP phone  ----> open source -----> SIP server

(UAC) ( PORT != 5060) ( PORT = 5060)

I have tried all sorts of methods like rewritehostport / t_relay etc etc. 

Would uac_auth work? And if so – anyone have any good examples of dynamic – as I do not want to store any credentials in the open source proxy.