Quote Originally Posted by VOIPoJustin View Post
Hmm.. the only problem with the excess voltage theory is that it sounds like it just popped up recently (ie, I would suspect it to be persistent from the start if so). I know the PAP2Ts have configurable voltage settings, let me verify if there's anything on the 502s end that we could make an adjustment for you.

Any other possible variables floating around to pin down the issue a bit more precisely?
I figured it out. I have another 502 here that was sent to replace this one for a issue that turned out not to be the ATA. That ATA has a severe audio issue. I swapped out the ATA as a test and it did it. So I swapped out the power supply with the other power supply and the problem is gone.

Power supply gone wild....