Installing Filters for DSL Service
For DSL service with self-installation, you will be provided with filters, small boxes that plug into your telephone jacks. Then the cord from your phone plugs into the filter. The filters block the DSL signal from reaching your telephones and answering machines. You need to identify every phone jack that is connected to the line your DSL service uses, and install a filter on every jack but the one that plugs into your DSL modem. If you need to plug a phone into the same jack that the DSL modem uses, use a dual jack adapter that has a filter on the side that connects to the phone. This adapter will have jacks clearly labeled “Phone” and “DSL.”
Tip
If a jack is unused, you don’t need to plug a filter in it, ...
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