When I press 'R' on a phone connected to the DIVA TA, I get four short beeps. When I press 'R' on a phone connected to the DIVA TA, I don't get dial-tone. Using one phone port, I expect to get hear a tone that tells me that there is another call for me. The Phone Port LED is flashing, even though no analog device is active. When I lift the handset, there is no dial-tone.
All inbound callers get a busy-tone yet the phone never rings.
When I disconnect a call with an OnHook, the phone rings, but there is no-one on the line.