a standard designed to move different kinds of data (at up to 128,000 bits/sec over regular lines, but usually 56,000-64,000) over a phone line
ISDN: INTEGRATED SERVICES DIGITAL NETWORK.
Meaning of ISDN: INTEGRATED SERVICES DIGITAL NETWORK. in English
Raynet Business and Marketing English glossary. Английский глоссарий компании Raynet Business and Marketing . 2012