Lucent Technologies Release 6 Manuale Utente
DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
Installation and Test for Multi-Carrier Cabinets
555-230-112
Issue 5
May 1998
Glossary and Abbreviations
Page GL-8
BCC
See
Bearer capability class (BCC)
.
BCMS
Basic Call Management System
BCT
See
Bearer capability class (BCC)
Code that identifies the type of a call (for example, voice and different types of data).
Determination of BCC is based on the caller’s characteristics for non-ISDN endpoints and on the
Bearer Capability and Low-Layer Compatibility Information Elements of an ISDN endpoint. Current
BCCs are 0 (voice-grade data and voice), 1 (DMI mode 1, 56 kbps data transmission), 2 (DMI
mode 2, synchronous/asynchronous data transmission up to 19.2 kbps) 3 (DMI mode 3, 64 kbps
circuit/packet data transmission), 4 (DMI mode 0, 64 kbps synchronous data), 5 (temporary
signaling connection, and 6 (wideband call, 128–1984 kbps synchronous data).
Determination of BCC is based on the caller’s characteristics for non-ISDN endpoints and on the
Bearer Capability and Low-Layer Compatibility Information Elements of an ISDN endpoint. Current
BCCs are 0 (voice-grade data and voice), 1 (DMI mode 1, 56 kbps data transmission), 2 (DMI
mode 2, synchronous/asynchronous data transmission up to 19.2 kbps) 3 (DMI mode 3, 64 kbps
circuit/packet data transmission), 4 (DMI mode 0, 64 kbps synchronous data), 5 (temporary
signaling connection, and 6 (wideband call, 128–1984 kbps synchronous data).
BER
Bit error rate
BHCC
Busy-hour call completions
bit (binary digit)
One unit of information in binary notation, having two possible values: 0 or 1.
bits per second (bps)
The number of binary units of information that are transmitted or received per second. See also
bit rate
.
bit rate
The speed at which bits are transmitted, usually expressed in bits per second. Also called data
rate. See also
rate. See also
and
bits per second (bps)
.
BLF
Busy Lamp Field
BN
Billing number
BOS
Bit-oriented signaling
BPN
Billed-party number
bps
See
bits per second (bps)
.
bridge (bridging)
The appearance of a voice terminal’s extension at one or more other voice terminals.
BRI
The ISDN Basic Rate Interface specification.
bridged appearance
A call appearance on a voice terminal that matches a call appearance on another voice terminal
for the duration of a call.
for the duration of a call.