SIP Trunk to XO Comms


Has any one set up a SIP trunk to XO Communications?

I can make outgoing calls, but simply get ‘Goodbye’ on incoming calls.

I have a new PiaF V1.4 setup using * v1.4 with remote softphones. * is not behind NAT. I have upgraded FreePBX to v2.5.1.2

Outgoing and extension to extension calls work fine.

I have had a good look at but no joy.

Any help would be most appreciated.