B-ISDN

(redirected from Broadband ISDN)

B-ISDN

(Broadband-ISDN) A framework for advanced telecommunications from the ITU. Introduced in 1988 as an extension to ISDN, it was designed to provide a blueprint to integrate data, voice and video in the 21st century. B-ISDN specifies the use of ATM for switching and SONET for high-speed links. See ATM and SONET.
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Disrupted services were B Frets fiber-optic lines provided jointly by NTT East and Internet service providers, ADSL and broadband ISDN.
The company recently introduced a telecommunications division, which offers the new era of broadband ISDN for fiber optics.
easynet Total Care Pack and Broadband ISDN back-upare is designed to offer customers protection to their easynet Business Broadband access whilst minimising downtime.
The second offering - the easynet Broadband ISDN back-up - is aimed at providing the customer with a back-up ISDN link should the DSL connection go down.
Ms Carri added: "It is quite clear that many of the communication services needed to operate a modern business - such as broadband ISDN lines - can only be had on a very patchy basis.
This book details the current developments in telecommunications transmission systems and the evolution from dedicated analog transport networks for speech, data, sound and video signals through the integrated services digital network (ISDN) toward broadband ISDN.
There are three types of ISDN service: basic rate interface (BRI), primary rate interface (PRI) and broadband ISDN (BISDN).
A broadband version of the SS7 call control message is under development for ATM switches as part of the Broadband ISDN User Part (B-ISUP).
It also puts a question mark over SMDS (Switched Multimegabit Data Service) and Broadband ISDN.
A number of big vendors are working together on development of ATM (Asynchronous Transfer Mode) node and link systems, which will constitute the main part of a Nippon Telegraph and Telephone broadband ISDN network.

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