The VoIP Lounge Brand New 12 foot handset cord for Panasonic KX-T series landline phones. Cords & Lengths: As a telecom industry standard, the indicated lengths of handset cords are when they are fully stretched out, not when they are coiled in their packaging. Cords are rarely used at their full maximum stretched length, so it's important to choose an appropriate length when buying. Available lengths for most cords are: 7 feet (11 inches coiled / unstretched) 9 feet (15 inches coiled / unstretched) 12 feet (20-22 inches coiled / unstretched) 25 feet (42 inches coiled / unstretched)