How to wire a phone ringer

Written by raul avenir
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How to wire a phone ringer
Installing an external ringer can help you avoid missed calls. (ohr image by Susanne Güttler from

External phone ringers are devices that amplify the ringtone of your telephone to allow you to hear it better. External ringers come in various styles and models, but almost all of them offer features such as a volume control switch and a flasher that allows the hearing-impaired to sense the ringing phone by eyesight. Learn how to wire an external ringer to make sure that you'll hear or see your phone ring no matter where you are inside your home.

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Things you need

  • External telephone ringer

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  1. 1

    Visit your local electronics store to choose and buy an external phone ringer that you like. Numerous brands and models of external ringers can be found for sale, but most of them include a volume control switch and a flasher. Select one that has a loud but pleasant ringtone.

  2. 2

    Place the external phone ringer near your landline telephone set, or attach it to a nearby wall using the mounting plate and screws supplied with it. Measure the length of the power cord in case you ringer needs to be plugged to a power outlet (most external ringers derive power from the phone line and do not need batteries) to make sure that the outlet is within reach.

  3. 3

    Plug the modular connector at the end of the telephone patch cord (RJ-11) supplied with the ringer into a telephone wall jack. Plug the other end of the cord into an RJ-11 phone jack marked "Line" at the back of the ringer.

  4. 4

    Plug the modular connector at the end of the patch cord coming from a landline phone into the RJ-11 port marked "Phone" at the back of the ringer. Lift the handset of your phone, listen for a dial tone and place a call to test the line. Call your landline phone from another phone, and listen to the ringtone of the external ringer. Adjust the ringer's volume switch to your desired intensity.

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