[SR-Users] Forward UAC Registration with Authentication (like Upper Registration or Passthrough Registration)

Sorry to spam all 3 boards at the same timeŠ 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.