I started off planning on setting up a SIP2 Server. I ended up with all the plans and profiles of an IAX2 server. I love the fact that IAX sends RTC packets in a single UDP stream. UDP is fast and packetless, a single stream means excellent NAT traversal.
But I’m still worried:
For future ugrades: At the moment, only asterisk supports IAX, is it expected to become more globally supported? I know it is expected to become a new standard, but its very incompatible with other hardware and servers.