AT&T 7400 series Bearer capability, See also bearer-capability class, Bearer-capability class

GL-4GLOSSARY

____________________________________________________________________________________________________________________________

_

bearer capability	A term used with Integrated Services Digital Networks (ISDNs) to
	identify the kinds of service that are requested or are available for a call.
	See also bearer-capability class.
bearer-capability class	A term used to identify the kind of trunk service required for a call. See
(BCC)	also bearer capability and bearer-capability routing.
bearer capability class of	A term used to identify the type of trunk service required for a caller. A
service (BCCOS)	bearer capability class of service is assigned to the calling party and
	identifies the trunk bearer capability required. See also bearer-capability
	routing.
bearer-capability routing	A method provided by bearer-capability classes (BCCs) for specialized
	routing of various trunk services using Integrated Services Digital
	Network primary rate interface (ISDN-PRI) and non-ISDN endpoints. See
	also bearer-capability class.
bearer channel	An information carrying channel on an ISDN interface.
binary synchronous	A character-oriented communications protocol that uses a defined set and
communications (BSC)	sequence of control characters for synchronous transmission of binary-
	coded decimal (BCD) data between two devices. Also called bisync.
bipolar signal	A digital signal that uses either a positive or negative excursion, usually
	alternating, for one state and ground for the other.
bisync	See binary synchronous communications.
bit (binary digit)	One unit of information in binary notation, having two possible states or
	values: 0 or 1.
bit-oriented signaling	A version of a digital multiplexed interface (DMI) that uses an enhanced
(BOS)	BOS format on the signaling channel for call-control signaling. See also
	message-oriented signaling.
bit rate	The speed at which bits are transmitted, usually expressed in bits per
	second. Also called data rate. See also baud and bits per second.
bits per second (bps)	The number of binary units of information that are transmitted or received
	per second. See also baud and bit rate.
bit-robbed signaling	See robbed-bit signaling.
blocking	A condition in which end-to-end connections cannot be made on calls
	because of a full load on all possible services and facilities.
BOS	See bit-oriented signaling.

bps See bits per second.