i have a data cable for my phone but when i plug it in my computer it doesnt show up do i need to download software off the internet or what
Connect the cell phone via USB. Connect the USB cable from the cell phone on one end to the computer on the other. Some cell phones have special mini-USB connectors that connect to the phone. This cable shipped with your phone, so check for it in the phone's original box. In other cases, the USB cable connects your phone to its charger, so check if it is a USB cable that connects your phone and power adapter.
Phone lines and computer cable are different types of cable and connectors. The telephone jack is an RJ11 type connector and the computer is a RJ45. Also phone lines only use 1 pair of wires and computer cable uses 2 pair, even though the cables have 2 and 4 pairs - respectively. So I'm not sure you're going to get your computer to work since phone cables typically are made with what is called silver satin cable and lacks the internal wires to be used as computer cable.