OK, Arthur, here are the results. My VOM meter is OK. The Teltone TLS3 is OK. The problem is the modular jack that I am using in reverse to test the phones. Apparently, someone wired the pre-wired modular jack backwards. I was using this jack because I am using a modular tester (the Teltone TLS) with non-modular phones. To do this, I was using the modular jack in reverse, that is, inputting the test signal to the output of the jack and wiring the spade tip of the phone to the terminals of the jack. Thanks for enlightening me as to the real problem.
