An access technology that allows voice and high-speed data to be sent simultaneously over local exchange service copper facilities; the technology supports data rates of up to 1.544 Mb/s when receiving data (downstream rate) and up to 256 kb/s when sending data (upstream rate). 2. A modem technology that provides enhanced and affordable access to t [..]

See ADSL.

A transmission technology that transmits an asymmetric digital signal using one of a variety of line codes as specified in the ANSI

is a modem technology that enables information and video to be transmitted over regular telephone lines.

ADSL is a technology for transmitting digital information at a high bandwidth on existing telephone lines. Unlike a regular dial-up telephone service, ADSL provides an "always on" connection. ADSL is asymmetric in that it uses most of the channel to transmit downstream to the user and only a small part to receive information from the user [..]

A high speed Internet connection that is many times faster than a normal modem. It allows your normal or digital phone line to be used, but you need additional hardware installed to connect to the ser [..]

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 v [..]

ADSL is a relatively new technology used to delivery high-speed digital communications across the local loop. See Digital Subscriber Line.