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How to Repair a Telephone System

Wiring a Telephone System: Identifying and Rewiring Telephone System Equipment – If the telephones are not working right then this is an indication that the system has a problem and the system equipment and wiring should be looked at to see where the problem really is.

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Wiring a Telephone System
[ad#block]Telephone Wiring Question: I have a small business with 3-phone lines coming in.

This Telephone Repair question came from: Rich, from St.Louis, Missouri.

Dave’s Reply:
Thanks for your Telephone System Wiring question Rich.

Working with Telephone System Wiring

Application: Wiring a Telephone.
Skill Level: Beginner to Intermediate. This electrical wiring project is best performed by a Licensed Electrical Contractor or Certified Electrician.
Tools Required: Basic Straight Slot and Philips Screw Drivers, wire strippers for 20 to 24 gauge wire.
Estimated Time: Depends on personal level experience and ability to work with tools and small phone wires.
Precaution: If installing or relocating additional telephone wiring the main phone cable or the Test Jack should be disconnected before working with the wiring.
Notice: Installing additional telephone cable and wiring should be done using approved phone cable and phone jacks that are approved and compatible with the local telephone system specifications.

Identifying and Rewiring Telephone System Equipment

Many business telephone systems use proprietary telephone equipment. Typically the telephone service from the local telephone company comes into a main box from the local CO or Central Office. From there the phone service is connected to the in-house phone system, starting with a main system terminal box. Many of these phone systems are proprietary and require using only their specific telephones which may be connected to the system. The telephone system typically have special functions that are compatible with the system.

When a Telephone System is Not Working
If the telephone system is not functioning properly then there may be a problem with the telephone system, and not the telephone, so replacing telephones may not solve the problem, in fact replacing a proprietary telephone with a non-compatible telephone may damage the equipment or not work at all.

Troubleshoot The Telephone System Problem
If the telephones are not working right then this is an indication that the system has a problem and the system equipment and wiring should be looked at to see where the problem really is, and it may be something really simple, such as a wiring problem in the office area where telephone cables may have been damaged.

Replacing a Business Telephone System
If a business telephone system needs to be replaced then all of the proprietary equipment must be removed and replaced with the new system in order to maintain system compatibility. The telephone system cables and wiring assignments will need to be identified and reassigned as needed for the application. Consult the telephone system documentation for complete instructions.

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This telephone wiring diagram with photos and instructions will show you the direct steps to correctly wiring a telephone jack.

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