MWI not turning off...

[TomP]

This statement is key--if you don't have stutter tone, your ATA has received the MWI off signal. Since the MWI light is still on, it's clear that the ATA is not sending a signal that your phone always understands to turn the MWI light off.

Makes sense. So I guess the remaining question is whether the ATA is sending a signal to the phone at all, or whether it's just sending a signal that the phone does not recognize.

I should have been a little more clear in my instructions--you want the voipo phone on hook when adding/removing voicemail from your line.

I did test it both ways. Same result. Perhaps more interesting is that with a message waiting and the phone on hook, deleting the message via vPanel did not cause the Line 1 or Line 2 lights on the PAP2 to blink. i.e. Perhaps the ATA may not be sending the signal. I suspect the few successes I had with the phone off hook may have been due to the phone checking for stutter as soon as I hung up.

For those whose phones don't reset themselves, the (obviously less-than-perfect) solution is to manually reset the indicator on your phone after you retrieve voicemail. On the Uniden phones, that's done by holding down the "Find Handset" key until the phones stop beeping (5-10 seconds).

Yes, that works reliably as a workaround. However, it's certainly less than perfect as the loud beeping at every handset annoys (or at night, wakes) everyone in the house.

Thanks again for your help.