I can receive calls originated from other VoIP systems. I cannot receive calls from landlines. I have spoken to my SIP Trunk provider (babyTel) and they said the calls are being dropped because the UC320 is not accepting the + in front of the DID number that is sent from landlines (apparently other VoIP systems don't send the +).
I have deleted the value in the "Only Allow Calls To" field. Didn't work. I entered an * in the "Only Allow Calls To" field. Didn't work.
Anybody else have any other suggestions? I am not too worried about leaving this blank as my firewall blocks SIP connections from the Internet and is configured to only allow connections coming from my provider.
RB
