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DSL Filter, In-line filter, or Microfilter? Where can I get one?

April 26, 2017dsl filter In-Line microfilter

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DSL Filter, In-line filter, or Microfilter? Where can I get one?

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Microfilters and/or in-line filters are required on all jacks that have POTS (Plain Old Telephone Service) equipment attached. POTs devices include: phones, cordless phones, CallerID boxes, TeleZappers, fax machines, etc. They isolate the POTS signals from the DSL signals so there is no interference. An assortment of microfilters are shipped with the self-install kit along with your modem. BellSouth’s current Self-Install Kit includes 1 wall mount filter and 4 in-line filters. Other common microfilters are also shown below. Important Note: The BellSouth supplied in-line filters have two outputs. One line out is marked “phone” and is used to connect to all POTS devices. The other line out is marked “ADSL/HPNA” or “Data” and is used to connect the DSL modem. It is critical that you install the filters correctly. Failure to do so will create poor performance and speeds. It may even keep the modem from synching at all.