I'm wondering if anyone has been able to get inbound faxing to work with an IPComms.net account? I've played arround with all the settings and configurations and still no luck. When I set the DID to go to the 888 fax server IPComms will send an INVITE, 3cx sends back a 100 Trying and nothing else. Eventually IPComms sends a CANCEL when it gives up. Nothing else. I've turned off all software firewalls on the server. I opened up all ports on the WATCHGUARD that sits in between. I tried all settings in the faxglb.cfg and in_session.cfg files. I tried STUN on and off. I talked with the IPComms people (who have been very helpful) and they show the same trace I do. \ Why isn't 3CX responding with a ringing or answer or something?