I bought the byte brothers poe tester. I looked around at the blackbox unit, or something like it. It seems to have what I need.

Had to use it the same week I got it. Went to a customer site that was having problems with the phones staying up. Supervisor said to tear the jacks apart, because he thought there was bad connections on the phones. I took the test, did its thing and proved it wasn't the connection, cable or poe switch. Customer had the cables on the phones stretched out, so they weren't making a good connection.

Reroute the cables through the phones like they should to prevent a bab connection. I haven't heard of any problems since.

Worked out nice.

Thanks for the replies

Mike