BT Telephone 6 wire Line Plug End White for Business Lines (10 Pack)
Most business lines that use BT plugs use 6 wire rather than the household 4 wire. The extra 2 wires usually power the phones from the main switchboardWe also sell a BT crimping tool to make fitting them easier. 6 wire BT Telephone Plug end adapter
Visit the Kenable Ltd website for more information on BT Telephone 6 wire Line Plug End White for Business Lines (10 Pack)