It's not been used in many years and just been sitting in a spare parts drawer.
BT Telephone Extension Cable 3m - Male to Female Phone Line Extension for Home
10M Long BT Telephone Extension Cable, Male to Female Phone Extension Cables 6-P
Landline Telephone Extension Cable 3m Black Flat Cable, BT Connections WORKING
Masterplug Telephone Extension Cable (5m) - ultra flat cable (unopened)
3 X new 10m TELEPHONE EXTENSION CABLE 4 PIN 4 WIRE MALE TO FEMALE
BT Telephone Extension Cable UK Lead BT Phone Fax Modem Socket Landline LOT
