What are In-Line Filters, do I need to use them?
In-Line filters or Micro-filters are small devices that are installed between the phone socket and a telephone device (e.g. telephone, fax or answering machine). These filters are specially designed to filter out noise, which can come about after having an ADSL service enabled on your phone line. You will require an In-line filter installed between every telephone device (e.g. Telephone, fax or answering machine) except your ADSL modem. In the case where you need 3 or more In-line filters, it is suggested that you install a Central Splitter (see below).
