What Is a Pots Filter

A DSL filter or POTS filter is an analogue low-pass filter installed between analogue devices (such as telephones or analogue modems) and a plain old telephone service (POTS) line, in order to prevent interference between such devices and a digital subscriber line

What does a POTS splitter do?

A vDSL POTS Splitter is a passive low-pass filter designed to provide POTS (Plain Old Telephone Service) service in concert with vDSL2 technology. The device blocks high frequency (20kHz-30MHz) energy from interfering with voice equipment and prevents POTS noise from causing data errors on the xDSL connection.

Why do I need a DSL filter for my phone?

Solution: If you subscribe to DSL internet service using your telephone line, DSL filters must be plugged into EVERY phone jack that has a phone connected to it. … DSL filters block the high frequency DSL signals from being transmitted to the telephone.