GE TL86597 InstaJack Wireless Phoneline Jack Instantly adds an additional phone jack to any room in your house No wiring, drilling, tools or phoneline hookup fees. Just plug it in! Works with corded and cordless phones, fax machines, satellite receivers, modems and answering systems Works throughout the house, even between floors Does not work when the device is plugged into a power strip, universal power supply or surge protector. Do not plug in to a surge protector, device has built-in surge suppression. Device needs to be plugged directly to the wall.