I am in need of putting a sbc or sip proxy in front of our existing sip solution to help solve a very specific problem. The SIP Trunk provider won't send to anything but port 5060, and the existing sip solution listens to port 5080 ONLY. (background: sipxecs. yes, they are using freeswitch inside for a couple of things) I have tried simple port redirection with iptables, and while it SEEMS to work, the sip packets don't. so, does anyone know of a simple solution? I don't really want to replicate all the users, dial plans, sip trunk accounts on freeswitch. Just basically, anything coming in from a certain ip to the freeswitch port 5060, 'sipproxy' it to port 5080 on the internal system. then, anything sent out from the one certain internal ip, sourced on port 5080 to port 5060, send it to the external sip trunk provider. Using ip based authentication all around. I assume using an ip based condition with a FWD, (but the FWD would need to be generic) if call comes in from siptrunkprovider to 1000@freeswitch.secnap.com:5060 , I want it transparently forwarded to 1000@sipx.secnap.com:5080 if an internal call goes out to 5619995000@freeswitch.com:5060, I want it transparently forwarded to 5619995000@siptrunkprovider.com:5060 (yes, I tried simple port mapping. worked with tcp on http, and ALMOST worked with udp on tftp, but audio was mangled) sipx suggested purchasing an ingate siperaor. hard to justify $4 or $5K when I could replace sipx with a commercial system for that price. (yes, I could move everything to freeswitch, and I might, but I am under a deadline ) -- Michael Scheidell, CTO o: 561-999-5000 d: 561-948-2259 ISN: 1259*1300
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