What Does Asymmetric Digital Subscriber Line (ADSL) Mean?

Asymmetric digital subscriber line (ADSL) is a type of DSL technology that provides greater bandwidth and provides higher-speed transmission over traditional copper telephone wires than conventional voice band modem. ADSL is characterized by “high speeds” and “always on” connectivity. This is achieved by using the frequencies not being used by voice calls.

Techopedia Explains Asymmetric Digital Subscriber Line (ADSL)

ADSL is the most common type of DSL connectivity offered by Internet service providers as it uses wires that have already been laid for telephone service. This makes it a cheap and viable option for distributing Internet connectivity to homes.