I am trying to setup a Sipura SPA-2000 with asterisk and do not hear any audio. I have set NAT=yes in sip.conf, is there anything else to look at? hilpert*CLI> sip show channels Peer User/ANR Call ID Seq (Tx/Rx) Lag Jitter Format 192.168.0.6 000E08AAFB fb865a36-f7 00101/00103 00000ms 0000ms ULAW 8 active SIP channel(s) Notice how the peer is set as the NAT internal IP, Also I notice that the port being used is not 5060, it is a random port: hilpert*CLI> sip show peers Name/username Host Mask Port Status 000E08AAFB39/00 64.36.104.204 (D) 255.255.255.255 32776 OK (87 ms)