A DSL filter, also known as a micro-filter, is a small in-line device sometimes required in DSL installations. It filters line interference to standard telephone phone equipment when the equipment lines share the same line as the DSL service.

DSL stands for Digital Subscriber Line, an always-on Internet service provided through in-place telephone lines. The ISP providing DSL service uses these standard telephone lines to provide a high-bandwidth channel that can deliver downstream speeds up to 3mbps. A special DSL modem is required and DSL filters may also be required, depending on the installation method.

A DSL filter is a very small rectangular device that has RJ11 connectors on both ends. The subscriber simply unplugs the telephone line from the wall jack, inserts the filter into the RJ11 jack, then plugs the telephone line into the filter. Fax machine lines and answering machine lines will also require DSL

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The installation is easy just plug & play.

Example of Instalation