An ISDN service providing users with 23 64 kbps bearer (or B) channels for message information and 1 64 kbps data (or D) channel for signaling and control over an existing telephone line.
One of two levels of ISDN service. In North America, PRI typically provides 23 bearer channels for voice and data and one channel for signaling information (commonly expressed as 23B+D). In Europe, PRI typically provides 30 bearer lines (30B+D). See Basic Rate Interface and Integrated Services Digital Network.
Edit / PRI - The ISDN standards that bundle multiple circuits over a single link. In the US, it consists of 24 circuit switched B (bearer) channels plus one packet-switched D (data) channel. It is the ISDN equivalent of a T1 circuit (1.544 Mbps). See Also: T1 ISDN
An access interface used by businesses with large data needs or with the need to set up their own local phone system. It provides a fast connection to the telephone company. In North America and Japan, the most common PRI has 23 64 Kbps B channels and one 64 Kbps D channel (23B+D). In Europe, the most common PRI is 30 64 Kbps B channels, and one 64 Kbps D channel (30B+D).
One of two levels of ISDN service. In North America, the PRI typically provides 23 bearer channels for voice and data and one channel for signaling information (commonly expressed as 23B+D). In Europe and most countries other than North America, PRI typically provides 30 bearer lines (30B+D).
An ISDN PRI is an industrial-strength ISDN telephone connection commonly used to service multiple dial-up data connections, large central switchboard “PBX†systems, and other highly-specialized needs. Each ISDN PRI has twenty-three 56 or 64Kbps B Channels and one 64Kbps D Channel.
The ISDN equivalent of a T-1. It provides 23B + 1D channels worth of bandwidth or a total of 1.544 megabits per second.
In the U.S., the Primary Rate Interface is split into 23 B channels and one 64 Kbps D channel. PRI is delivered over the same physical link as a T1, or 1.55 Mbps link.
In ISDN, the specification for the interface at each end of the high volume trunks linking PBX and central office facilities or connecting network switches to each other. The primary rate consists of 23 B or "bearer" channels (operating at 64 kilobits per second) and a D or "data" channel (also functioning at 64 kbps). The combined signal carrying capacity is 1.544 megabits per second -- equivalent to that of a type T1 channel.
This is an ISDN interface typically used by larger customers. This interface consists of a single 64 Kbps data (or"D") channel plus 23 or 30 bearer (or "B") channels for voice and/or data. Also known as Primary Rate Access, or PRA.
An ISDN subscriber line, consisting of twenty-three 64 kbit/s B channels in North America (thirty 64 kbit/s channels elsewhere) and one 64 kbit/s D channel, used for signaling purposes.
Primary Rate Interface is the trunk interface to the mobility server where the voice channels are separate from the data channel.
An ISDN term for connections over E1 or T1 facilities that are usually treated as trunks.
An ISDN subscriber line consisting of 23 64Kbps B channels and one 64Kbps D channel used for signaling.
A type of ISDN service that offers 23 B-channels at 64 Kbps and one D-channel at 64 Kbps (23B+D). In Europe, PRI provides for 30 B-channels and two D-channels (30B+1D).
(PRI) ISDN's carrier or large user interface comprising 30BD channels.
A four-wire ISDN line (or “trunk”) with the same capacity as a T1, 1.544 Mbps. PRIs contain 23 64 Kbps B-channels and one 64 Kbps D-channel. The D-channel carries call-control signaling for all the B-channels.
The primary rate interface (PRI) is a telecommunications standard for carrying multiple DS0 voice and data transmissions between two physical locations.
