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
Shoes Over Telephone Wires: This Probably Doesn't Explain It - Bloomberg
Direct Burial Telephone Wire, 22 AWG, 2 Pair, Copper, Solid, Black | State Electric