DSL is a type of Internet connection that is able to send and receive data using a standard telephone line. However, if you still use a landline to make and receive phone calls, you’ll want to first install DSL filters on all of your phone jacks. A DSL filter minimizes any interference between the phone line and the DSL service. Most DSL filters plug directly into the phone jack and have two outputs: one for your phone and one for your DSL modem.
