"Jon T. Adams" <jta@hydra.jpl.nasa.gov> (04/10/91)
Some time ago Andy Jacobsen had described the efforts he had gone through to find the ringback and # readback functions for GTE West LA. Well, I finally came across his note filed away in my heap last evening and started punching out digits on my phone, a 213-674-xxxx number in Pac Bell's area. The number 1-958-xxxx (where xxxx is my last four digits) gets me a dial tone against which I cannot dial. I then do a flash hook which nets me a weird tone. I hang up and get an immediate ring-back. I pick up the phone, hear that weird tone, then hang up. The number readback is 1223 for my prefix. A mechanical lady comes on the line without a ring tone and then rapidly reads back my phone number. Thanks, Andy - tres cool. jon