I wondered about that, Ted. I wondered about getting DLS from Earthlink or somebody on my AT&T phone line. Thanks for the advice.

As I understand it, DSL (Digital Subscriber Line) and the new Internet service that's supposed to run over power lines, are mutiplexed signals that ride on top of the regular phone line traffic (or the power transmitted to your house, in the case of powerline Internet). They are transmitted at a very high frequency over the carrier line, and then demultiplexed to a normal signal at the receiving end.

Another phone-line Internet format is ISDN (Integrated Services Digital Network). I think this format is slower than DSL (but may have longer range), and I think it has been discontinued in most places.

-Joe-