How Do You Install a Residential Phone Line?

To install a residential phone line, cut off the signal and power at the Network Interface Device, insert and pull out a telephone cable through the NID's opening, and expose the cable and wire ends. Connect the wires to the appropriate terminals in the jack, run the cable to the required location, and mount a RJ-14 jack to its end. Affix the jack to the wall, and restore signal and power to the NID.

The NID is located outside the house, normally attached to a wall close to where the phone line enters the house. To cut off the signal and power at the NID, unplug the modular connector within.

The opening for a telephone cable in the NID should be located on its bottom or side. To expose the cable and wire ends, strip around 3 or 4 inches of insulation from the cable and approximately 3/4 inch of insulation from the color-coded wires within with a wire stripper.

To connect the wires in the jack, turn the jack's terminal screws counter-clockwise with a screwdriver. Wrap the green and red wires around the green and red terminals, respectively, clockwise in Line 1. Similarly, in Line 2, wrap the black and yellow wires around the green and red terminals, respectively. Tighten the terminal screws.

Fasten the cable along the walls, corners and ceilings to the exact location using staples. Cut the cable leaving an additional 1 foot from the wall.

To mount the RJ-14 jack, open it and undo its terminal screws. Expose about 2 inches of bare wire from the cable, and connect to the jack as per the color codes. Secure the connections, and affix the jack to the wall using screws or mounting tape. To test the installation, check for a dial tone, and make a phone call.