Abbreviated B-ISDN. A high-speed communications standard for WANs that handles high-bandwidth applications, such as video, voice, data, and graphics.
SMDS (Switched Multimegabit Data Services) and ATM (Asynchronous Transfer Mode) are two BISDN services that can provide a huge bandwidth.
See also Asynchronous Transfer Mode; SONET; Switched Multimegabit Data Services.