How to Extend a Phone Line for DSL

Written by leighton sawatzky
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How to Extend a Phone Line for DSL
Phone line extenders let you set up your modem anywhere you want. (RJ-11 telephone cable image by TekinT from

Because DSL modems use regular phone lines to transmit and receive data, extending a phone line for a DSL modem is done the same way as it is for phone lines. A number of phone line extenders are available in various lengths, so you can set up your DSL modem wherever you want. All you need to do is make sure the phone lines and extenders are connected properly. Phone line extenders are sold at most electronics retailers and only cost a few dollars.

Skill level:

Things you need

  • Phone line extender

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  1. 1

    Unplug from the wall the telephone cable running between the wall outlet and the modem.

  2. 2

    Plug the phone line extender into the phone outlet and place the other end where you want to set up your modem.

  3. 3

    Plug the DSL modem's telephone cable into the phone jack at the end of the phone line extender.

Tips and warnings

  • Many phone line extenders have multiple phone jacks at the end, so you can plug phones and other devices into it in addition to your modem.
  • Connect DSL filters to any jacks with phones or other devices plugged into them, such as fax machines or answering machines.
  • Phone line extenders should only be used as a last resort; the more phone line your DSL Internet signal travels through, the slower it will be.

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