25 foot Silver Satin Flat RJ11 Telephone Cable (Data) This 25 foot flat silver satin telephone cable is designed for data use, straight / 1 to 1 pin out. It is ideal for connecting modems and fax machines where the device is across a room from the wall jack. These telephone cords feature 6 position 4 conductor RJ11 connectors and four 28 AWG (American Wire Gauge) wires in each cord.