![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 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](https://m.media-amazon.com/images/I/3124UepG8aL._AC_SX450_.jpg)
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
![Telephone Wiring Colour Code - BT Telephone Extension Socket DIY helpTelephone Extension Socket .com Telephone Wiring Colour Code - BT Telephone Extension Socket DIY helpTelephone Extension Socket .com](http://telephoneextensionsocket.com/wp-content/uploads/2013/02/Exten-Socket-Colourcode.jpg)
Telephone Wiring Colour Code - BT Telephone Extension Socket DIY helpTelephone Extension Socket .com
![MainCore 15m long White BT Telephone Extension Cable Lead For Office & Home 6 Wire (631a) BT Male to BT Female (Available in 2m, 3m, 5m, 10m, 15m, 20m) (15m): Amazon.co.uk: Electronics MainCore 15m long White BT Telephone Extension Cable Lead For Office & Home 6 Wire (631a) BT Male to BT Female (Available in 2m, 3m, 5m, 10m, 15m, 20m) (15m): Amazon.co.uk: Electronics](https://m.media-amazon.com/images/I/81+DgCoiPIL._AC_SL1500_.jpg)