InstallerParts RJ11 Modular Telephone Cord Extension- Straight Wiring, Silver (14FT) COMPATIBILITY: Use this telephone extension cable to easily connect your telephones, modems, answering machines, and fax machines to a wall jack in your home or office. STRAIGHT WIRING: A straight telephone cable is best used for data application. RJ11 CONNECTORS: Each end of the phone cord has a standard male RJ-11 connector with 4 conductors. GOLD-PLATED CONDUCTORS: Each conductor is gold-plated to eliminate static and maximize conductivity. FLEXIBILITY: The satin jacket encasing our phone cable provides you with increased flexibility, making it easier to connect your devices.