(Another) Obi100 not ringing physical phone

[Benobi]

I've read for over an hour on the subject, and I still can't get it to ring on incoming calls.

The Call History shows the calls.

The Phone Status shows "Ringing" when the call is coming in.

Google Voice Forwards calls is set correctly. That's not a problem.

I've tried 3 different telephones.

Tried logging out of Google - I don't think GV is in any way the issue, since the Obi100 is "ringing" but not sending the ring voltage to the physical telephone.

Are there any settings in the Obi that I can try?

Thanks.

[dircom]

call your obi from a cell phone, pick up the phone on the 2nd or third ring
see if you can answer the call

that will give you more information

[Benobi]

Well, it was the phones. I tried a 4th phone and it is ringing.

2 phones were old Bell phones from the 80s, and the 3rd is a Panasonic cordless. I read there's an issue with the Panasonic phones...

Followup - For Panasonic phones, set the RingWaveform to Trapazoidal - as has been mentioned before.