Amazon.com: 1st Choice Telephone Line Cord Heavy Duty Silver Satin 4 Conductor 14-ft : Electronics
Zenith 50 ft. 4-Wire Telephone Line Cord in White TL1050W - The Home Depot
Coil Telephone Cable Flexible Black 4-Wire (100m) - Cablematic
Direct Burial Telephone Wire, 22 AWG, 2 Pair, Copper, Solid, Black | State Electric
Amazon.com: (2 Pack) 1 Foot Telephone Cord, Professional Grade Made in USA, 6P4C Male RJ11 Plugs with 50 Micron Gold Contacts, Pure Copper Wire Phone Line Cable (12 Inches, Black) : Electronics