Master Socket
Master Socket. This should be the first socket at your home or work, also known as the Network termination equipment (NTE5 master socket). This socket will help you should you have a telephone problem, fault or loss of connection. The master socket will have a removable cover at the bottom, undo the two small screws and gently pull the cover forward, if you have other sockets in your home the wiring will be attached to the rear of this removable plate. You will find a test socket to the right side of the plate that is fixed on the wall, use this test socket to check connection to your outside line, if the fault has gone and you have a good clear connection it will probably be a fault with the house/office wiring or equipment. Master sockets can be fitted at your home should you not have one, without any interference to the equipment supplied and maintained by BT.