A telephone wall socket connects your telephone to the telephone wiring in your house. It consists of a flat faceplate with a socket that mounts against the wall. The house telephone wiring connects to the back of the faceplate and the telephone plugs in the socket on the front of the faceplate. House telephone wiring generally consists of up to three pairs of wires, allowing your telephone to connect to three different telephone lines.
Select the pins on the telephone socket to which you will connect the telephone wires. In most cases, you will connect the telephone wires to line 1. The telephone socket has six pins numbered from left to right as you look at the back of the socket. Pin 3 is the tip, or positive, wire for line 1. Pin 4 is the ring, or negative, wire for line 1.
Identify the terminals that connect to pins 3 and 4 of the telephone socket. The faceplate will typically have six terminals that connect to each of the six pins in the socket. Call the terminal for pin 3 terminal A. Call the terminal for pin 4 terminal B.
Choose the telephone line to which you wish to connect your telephone socket. The telephone wires will typically be green, red, black, yellow, blue and orange. Line 1 uses the green wire for the tip and the red wire as the ring. Line 2 uses the black wire as the tip and the yellow wire as the ring. Line 3 uses the orange water as the tip and the blue wire as the ring.
Strip off 1/4 inch of insulation from the tip and ring wires you selected. Loosen the screws for terminal A and terminal B with the screwdriver. Wrap the bare end of the tip wire around the screw for terminal A. Wrap the bare end of the ring wire around the screw for terminal B. Tighten the screws for terminal A and terminal B to hold the wires in place.
Align the holes in the faceplate with the corresponding holes in the wall. Place the screws for your faceplate through the holes and tighten them securely to attach the faceplate against the wall. Plug your telephone into the telephone wall socket.