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High Speed Internet

Connecting the DSL filter

Check if you need to install or replace a phone line DSL filter with the Verizon Troubleshooter.

Installing filters on your phone devices is Step 1 of the Verizon High Speed Internet installation process. You need to install filters on all phone devices using a telephone line before installing your modem.You'll install your modem in Step 2 of the installation process.

Figure depicting filter installation on standard telephone
Filter installation on standard telephones

To install a filter into a standard telephone:
  1. Disconnect the phone (or other device) cord from the wall jack.
  2. Insert the phone cord into the filter.
  3. Insert the filter into the wall jack.
  4. Repeat Steps 1 through 3 for each device needing a filter.
Figure depicting not installing a filter on your modem
  • Do not install a filter on your modem

  • Do not install filters on empty phone jacks
Next steps

Install additional filters
on other phone devices


Proceed to
Step 2: Install DSL hardware
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