Analog cell lines are rapidly vanishing.. ATT (Cingular) has been changing over all thier towers to run on the GSM networking which is only digital. If you still have an old phone that runs analog you'll find that the service is rapidly dimishining. Not sure about verizon, but part of the Sprint/Nextel merger is moving all of the lines to digital towers as well. just a little random info from someone in the know..