Lucent Technologies MERLIN LEGEND Release 6.0 System Programming Manual page 1072

MERLIN LEGEND Communications System Release 6.0
System Programming 555-660-111
Glossary
Call Management
System
CAS
CAT
CCITT
CCS
centralized
telephone
programming
central office
Centrex
channel
channel service
unit
checksum
circuit-switched
data call
class of restriction
clear data channel
See CMS .
(Call Accounting System) DOS- or UNIX System-based
application that monitors and manages telecommunications
costs.
(Call Accounting Terminal) Standalone unit with a built-in
microprocessor and data buffer that provides simple call
accounting at a low cost.
(International Telegraph and Telephone Consultative
Committee)
(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.
Programming of features on individual telephones;
performed at a central location by the system manager.
See also system programming and extension
programming.
See CO .
Set of system features to which a user can subscribe on
telephone trunks from the local telephone company.
Telecommunications transmission path for voice and/or
data.
See CSU .
Sum of ones in a sequence of ones and zeros used to
detect or correct errors in data transmission.
Data call made through an exclusively established and
maintained connection between data stations .
See COR .
Clear data channels (also called unrestricted data
channels) allow the transmission of occurrences of more
than seven contiguous zero bits. If a clear data channel is
requested and only restricted channels are available, the
call will be rejected. See also restricted data channel.
Issue 1
February 1998
Page GL-6