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Testing, Repairing and Installing Home telephone Wiring - Adding Wire to Existing Service


Adding Wire to Existing Service:

When adding wiring to existing telephone service, you must run the wire from a known working telephone outlet, wire junction, or the NID.  The wiring will then be connected to a working outlet or feed for the new telephone location or locations.

This will typically mean that the new wire will be visible (as opposed to having the wire run through the floorboards and studs as is available in a new construction).  2-pair wire is normally used in this situation.  Standard baseboard jacks are easiest for this type of installation. 

Helpful Hints:

  • Start at the point where you intend to install a telephone jack.
  • Leave at least 12 inches of extra wire at the planned location of the jack.
  • Leave at least 3 feet at the point of connection to your current telephone wiring.
  • Fasten the wire to the baseboard and moldings using a staple gun or a wire clip every 12 inches. Pull the wire straight (but do not stretch it) before installing a staple or clip
  • Be careful not to drive the staples or clips through the wire
  • Do not run the wire on the floor or under carpets.  Normal activity can damage the wiring and cause it to break. 
  • Do not run the wiring through or near heating ducts unless the wire is rated for this type of installation.  Heat can cause the wires to become brittle and break. 
  • Do not wrap the wire around nails or hooks.