Digital Phone Jack Wiring
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I just moved into a new house (to me). Got digital phone via cable. If I plug a standard phone into the supplied modem, phones elsewhere in the house I get dial tone, but they will not ring on an incoming call…
© By: Dave Rongey
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Standard Telephones and Digital Phone Jack Wiring
[ad#block]Question: Here’s a goofy question- I just moved into a new house (to me). Got digital phone via cable. If I plug a standard phone into the supplied modem, all is good, phone works. NOW- If I take a standard phone (RJ-11) cable from the modem to a wall plate, I thought that I would be able to use phones elsewhere in the house by plugging them into wall jacks. I get dial tone, but they will not ring on an incoming call! The existing phone wiring is isolated from the street, by the way. Am I reversing polarity by back feeding this way, or ?
This electrical question came from: Jon, a Homeowner from Portland, Oregon
Dave’s Reply:
Thanks for your electrical question Jon.
Jon, check with the type of digital service you have and which phones and wiring are compatible with that system. Check out my VOIP Telephones page to see alternate connections that may help.
The Following links will assist you with your electrical question:
Telephone Wiring Diagram
Electrical Wire for the Home
For more information about Phone Jack Wiring
Telephone Wiring

Phone Jack Wiring
This telephone wiring diagram with photos and instructions will show you the direct steps to correctly wiring a telephone jack.
The following may also be helpful for you:
A Complete Guide to Home Electrical Wiring
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Includes:
Home Electrical Wiring - Room by Room
120 Volt Circuits
240 Volt Circuits
Multi-Wired Circuits
Wiring Methods for Installing Home Electrical Circuit Wiring
Electrical Codes for Home Electrical Wiring
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