FCC-68 6-Core Telephone & Data Cable Grey 100m Reel, Modular Flat Telephone Cables: Amazon.co.uk: Electronics & Photo
World of Data - 5m BT Telephone Extension Cable - White Coloured - BT Male Plug to Female Socket - 6 Core - Copper Wiring : Amazon.co.uk: Electronics & Photo
3 Pair Flat Telephone Cable 6 Cores Conductor Telephone Wire - China Telephone Cable and Telephone Wire