A technology suite geared to multimedia. There are two transmission schemes: STM (synchronous transfer mode) and ATM.
a single ISDN that can handle voice, data, and eventually video services
The first ATM specifications, ratified by ANSI and by the InternationalTelegraph and Telephone Consultative Committee (CCITT). B-ISDN specifiesstandards for a high-speed network using ATM as its transport mechanism.
Telecommunications service concept. Widespread use of Internet protocols, xDSL in local networks, and ATM feature flexibility are enablers of BISDN; ATM and Internet use have evolved into BISDN. Concept features the ability to provide "on demand" bandwidth for various services, such as video & data transfer.
CCITT is developing a Broadband Integrated Services Digital Network umbrella standard. Its aim is to incorporate underlying standards for the integrated digital network switching, transmission and multiplexing facilities, that can meet expanding voice, video, data and other requirements lasting well into the future. One of the first drafts of the CCITT document, BISDN is defined as "a service requiring transmission channels capable of supporting rates greater than the primary rate". The primary rate for "narrowband" ISDN in the U.S. (as the current standard is often referred to) is 1.544 Mbps.
(BISDN). The broadband integrated services digital network (broadband ISDN, or BISDN) is normally associated with the future telecommunications systems based on asynchronous transfer mode (ATM).
An ITU-T communication standard for high-speed networking that provides new services, including voice, video, and data on the same network. See also: International Telecommunication Union - Telecommunication [Standardization Sector] (ITU-T)
In the 1980s the telecommunications industry conceived that digital services would follow much the same pattern as voice services, and conceived a grandiose vision of end-to-end circuit switched services, known as the Broadband Integrated Services Digital Network (B-ISDN). This was conceived in the 1990s as a logical extension of the end-to-end circuit switched data service, ISDN.