Telephone Wiring Installation/Repair Guide

This telephone wiring installation/repair guide is intended for informational help for you to use to resolve many wiring and repair issues you may encounter with your telephone service, we do not accept any liability for any injury, expense or damages you incur from attempting to perform your own telephone wiring and repairs. If you doubt your ability to do your telephone wiring and repair after reading this guide please call a qualified technician to perform what is needed.

Troubleshooting and Repair

When things aren't working right, what's wrong? Is it your equipment or inside wiring, or the telephone network? You may be able to troubleshoot the problem yourself with information contained here within this guide.

If you are in need of immediate assistance, please call our toll-free repair number:
297-0611 or 349-0611 or 673-0611

Here are some easy steps to follow that will assist you in determining where the problem is.

Tips if you cannot receive calls.

  1. Check the ringer on the telephone set (located either on the side or underneath the phone).
  2. Check to see if the line cord from the telephone set is plugged in the telephone set as well as in the modular jack.
  3. If you have another jack in some other room, try taking the telephone set to that jack and make a test call there.
  4. If you have the Call Forwarding feature, check to see if it is activated. The Call Forwarding feature can be deactivated by dialing *73 (or 1173 on rotary or pulse-dialing phones).
  5. If you have certain Call Screening features activated that restrict calls being terminated to your phone. Check the individual feature to see if it is activated or deactivated.

How To Check Your Phones

Modular phones are easy to check. Try these four steps before calling the Telephone Company for a Repair Visit.

  • Determine it is one phone or all phones that don't work. Unplug all phones and test separately.
  • If the problem is with only one phone, test that phone in another jack. If it still doesn't work, that phone is probably bad.
  • If the phone works in a different jack, go back to the jack where the trouble started and test it with a different phone. If neither phone works, then there may be a problem with the wiring to that jack.
  • If none of the phones work after testing each phone and jack separately, the problem may be in the wiring. (See How To Check Your Wiring)

How To Check Your Wiring:

Wire Guide


If you have determined that there may be a problem with your wiring, follow these easy steps to determine if the trouble is your responsibility or the Telephone Company's.m

  • Go to the Network Interface Device (NID) normally located on the outside of your home (See Figure 1).
  • Disconnect modular plug from Test Jack (See Figure 2). This disconnects your inside wire from the Telephone Company facilities.
  • Plug a working phone with a modular line cord into "Test Jack." If you receive a dial tone, the problem is with your wiring or equipment.
  • If you do not receive a dial tone the problem is probably with the Telephone Company's facilities and you should call Foothills RTC at 297-0611 or 349-0611 or 673-0611.
    Or use our online repair form.

If You Don't Have A NID:

If you follow the test instructions and determine that there may be a problem with your wiring, but do not have a Network Interface Device (NID) installed at your house yet, you should call the Telephone Company's Repair Service and explain the situation.

A Technician will come to your house, determine where the problem is and install a Network Interface Device (NID).

The Technician will then advise you where the problem is and... if it is in the Telephone Company's facilities, fix it. If it is determined that the problem is in your equipment or wiring, the Technician will be happy to make the necessary repairs, however, it will be at your expense.

Deregulated Repair Service:

Foothills Broadband has strived to continue providing the services needed by our customers, even in a deregulated environment.

We provide options for maintenance of customer owned equipment and include all maintenance and repair as part of our equipment leases.

We also offer a Wire Protection Plan designed to cover problems with standard residential jacks and wiring. If our own your phones, but don't want the worry of maintaining the wire inside your home, this plan provides the protection you want for just pennies a day. Call our Business Office for more information.

As always, we continue to provide maintenance and repair of all standard customer premise wiring at no charge when you lease equipment from us.

If you have a question about any of these programs, charges or responsibility for repairs, please call our office. We are happy to help in any way that we can.

These drawings show you how to install, or disconnect plug-in telephones in your home.

All Models Except Wall Phones

Attach the line cord to the receptacle at the base of the telephone. Then attach the other end to the wall outlet.

Home Phone Wiring Guide

Finally, attach the coil cord by putting one end into the receiver and the other end into the base of the telephone.

Wall Phones

First, align the phone with the wall outlet. Be sure to line up the holes on the back of the phone with the pins on the wall outlet. Maybe they don't look like they go together, but don't worry, they do. Push the phone firmly against the wall outlet and push down to lock in place.

Wall Phone install

Now attach the coil cord by putting one end into the receiver and the other end into the base of the telephone.

To install a wall phone with a slide lock lever:

Pull out slide lock lever (1). Fit plug (2) on back of phone in to jack (3). Align slotted holes (4) on back of phone over mounting studs (5), and gently pull down on phone until phone locks in place. Push slide lock lever (1) in.

Slide Lock Install

Fig. 1-Plug

Figure 1

Simply insert as shown. Telephone is ready for use. To disconnect depress spring clip on plug and pull out.

Fig. 2-Modular Jacks

Figure 2 Modular Jack

Shown above are various types of modular jacks.

Fig. 3-Adapter

Figure 3 Adapater

Insert plug into adapter. Then insert into four prong jack.

Man Holding Question Mark.