ISDN definition

ISDN refers to a digital circuit switched network service. Basic Rate ISDN (BRI) provides for channelized (two (2) bearer and one (1) data) end- to-end digital connectivity for the transmission of voice or data on either or both bearer channels and packet data on the data channel. Primary Rate ISDN (PRI) provides for twenty-three (23) bearer channels and one (1) data channel. For BRI, the bearer channels operate at 64 Kbps and the data channel at 16 Kbps. For PRI, all twenty-four (24) channels operate at 64 Kbps or
ISDN means a switched network service that provides end-to-end digital connectivity for the simultaneous transmission of voice and data. Basic Rate Interface-ISDN (BRI-ISDN) provides for a digital transmission of two 64 Kbps bearer channels and one 16 Kbps data channel (2B+D).
ISDN means Integrated Services Digital Network;

Examples of ISDN in a sentence

  • Basic Rate Interface-ISDN (BRI- ISDN) provides for digital transmission of two (2) 64 kbps bearer channels and one (1) 16 kbps data and signaling channel (2B+D).

  • Primary Rate Interface- ISDN (PRI-ISDN) provides for digital transmission of twenty-three (23) 64 kbps bearer channels and one (1) 64 kbps data and signaling channel (23B+D).

  • Among these requirements, business line tallies (1) shall include only those access lines connecting end-user customers with Verizon end-offices for switched services, (2) shall not include non-switched special access lines, (3) shall account for ISDN and other digital access lines by counting each 64 kbps-equivalent as one line.

  • An End Office connection that provides transmission, switching and optional features suitable for Customer connection to the public switched network, including loop start supervision, ground start supervision and signaling for BRI- ISDN service.

  • Telcordia TR-NWT-000393 Generic Requirements for ISDN Basic Access Digital Subscriber Lines.


More Definitions of ISDN

ISDN means Integrated Services Digital Network.
ISDN or “Integrated Services Digital Network” means a switched network service providing end-to-end digital connectivity for the simultaneous transmission of voice and data.
ISDN means the Integrated Services Digital Network.
ISDN means ‘Integrated Services Digital Network’ which is a set of communications standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network;
ISDN means the integrated services digital network which is an Electronic Communications Network evolved from the telephony integrated digital network that provides for digital end-to-end connectivity to support a wide range of Public Electronic Communications Services, including voice and non-voice service to which End Users have access by a limited set of standard multi-purpose customer interfaces;
ISDN means Integrated Services Digital Network, an international communications standard for sending voice, video, and data over telephone lines. ISDN services are supplied as Basic Rate (BRI), consisting of two 64-Kbps B-channels and one D-channel for transmitting control information, or Primary Rate (PRI), consisting of 30 B-channels (23 in the US) and one D-channel. PRI subsets comprising fewer B-channels are sometimes also available.
ISDN means a set of communications standards allowing a single wire or optical fibre to carry voice, digital networks services and video;