Hi - hope someone out there can help. I recently bought a new computer for home. The problem is, everytime I want to go online, I have to drag a 20-foot telephone cable from the computer out to the hall jack (the only one in the house). I went down to my crawlspace and this is what I see. A cable coming from the jack with green, red, black, and white! wires. This is connected via the green and red wires (black and yellow are free) to another wire which goes to the outside of the house. Is there a way to "split" the phone line so I can have a telephone jack in my study? Do I need to order another phone line from the telephone company?