Instruction manual

Glossary
board renumbering
System programming procedure for renumbering boards
that have already been assigned to specific slots on the
control unit.
BRI
(Basic Rate Interface) A standard protocol for accessing
Integrated Service Digital Network (ISDN) services.
button
Key on the face of a telephone that is used to access a
line, activate a feature, or enter a code on a
communications system.
byte
Sequence of
bit s (usually eight) processed together. Also
called “octet.”
C
Call Accounting
System
See
CAS .
Call Accounting
Terminal
See CAT .
Calling group
Team of individuals who answer the same types of calls.
Call Management
System
See
CMS .
CAS
(Call Accounting System) DOS- or UNIX System-based
application that monitors and manages
telecommunications costs.
CAT
(Call Accounting Terminal) Standalone unit with a built-in
microprocessor and data buffer that provides simple call
accounting at a low cost.
CCITT
(International Telegraph and Telephone Consultative
Committee)
CCS
(common-channel signaling) Signaling in which one
channel of a group of channels carries signaling
information for each of the remaining channels, permitting
each of the remaining channels to be used to nearly full
capacity. In the system’s 100D module, channel 24 can be
designated as the signaling channel for channels 1–23.
centralized
telephone
programming
Programming of features on individual telephones;
performed at a central location by the system manager.
See also
system programming and extension
programming.
central office
See
CO .
GL–4 System Manager's Guide