DSL service is provided through a home or business’s phone lines. If there is phone service in the building with the DSL there can be interference between the phone and the DSL. A DSL filter is used to prevent this from happening.
If you have DSL and a home phone and have heard static while you were on the phone you could be getting interference from the DSL. By placing a filter on all of your phone lines you can make sure there will not be any problems.
The filter acts as a barrier between the phone and the DSL. It prevents one from bleeding over to the other. A filter needs to be installed on any phone line in your house. This includes fax and answering machines.
Without a DSL filter you may experience slow internet speed and noise while you are talking on the phone. To install a DSL filter you simply plug it into your phone jack. You then plug your phone line into the DSL filter.