ADSL

technology that enables rapid transfer of digital information through regular telephone cables (the line is asymmetrical because the connection is faster in one direction than the other)

Asymmetric Digital Subscriber Line (ADSL) is a form of DSL, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. It does this by utilizing frequencies that are not used by a voice telephone call. A splitter - or microfilter - allows a single telephone connection to be used for both ADSL service and voice calls at the same time. Because phone lines vary in quality and were not originally engineered with ADSL in mind, it can generally only be used over short distances, typically less than 3mi (5 km).
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ADSL, Asymmetric Digital Subscriber Line, technology that enables rapid transfer of digital information through regular telephone cables (the line is asymmetrical because the connection is faster in one direction than the other)

ADSL, Asymmetric Digital Subscriber Line, technology that enables rapid transfer of digital information through regular telephone cables (the line is asymmetrical because the connection is faster in one direction than the other)

Asymmetric Digital Subscriber Line