How To Install a DSL Line - Bob Cromwell on Linux You can install your own DSL lines in your home and connect them to your ISP's network interface box. Only a few basic tools are needed, and the parts are available at home-improvement stores. You will need some twisted-pair Ethernet cable, some RJ45 jacks, and one DSL filter for each telephone. Your voice lines and Internet connection share the same cables. How can I prepare my inside wiring for DSL installation On the demarc end of your wire all you need to do is coil up some extra wire so the DSL installer can hook up his/her end. On your end, if you hook up your own jack, you will need to connect the..