text: how do i hook up my yahoo dsl from an upstairs phone jack to my computer way downstairs without using a wire?   if you want to use your phone line with internet throughout your house, you need to get 2wire hardware. they have a router that can send a  dsl signal throughout your house line. here's their website: http://www.2wire.com/  i've set it up a couple of times for different clients. works very well for people who don't want a lot of wires throughout their walls.