Ideal for converting from a BT 431A Cable to a RJ11 2 wire connection. This adapter allows you to connect a BT plug to an RJ11 socket such as phone from Ireland or the USA Compatible with all types of telephone systems which use the standard BT and RJ11 sockets (2 pin)
This adaptor is ideal for use with your BT telephone and your VoIP (sip & skype) phone adaptor take it with you if you re emigrating or on holiday to enable you to use your existing BT phone with the foreign telephone exchange
Small compact adapter BT 4 wire Plug RJ11 2 wire Socket Pin 2 and pin 5 connected on 431A plug
