Administrator's Guide

Glossary and abbreviations
555-233-5061962 Issue 5 October 2002
common-control switching arrangement (CCSA)
A private telecommunications network using dedicated trunks and a shared switching center for interconnect-
ing company locations.
communications system
The software-controlled processor complex that interprets dialing pulses, tones, and keyboard characters and
makes the proper connections both within the system and external to the system. The communications system
itself consists of a digital computer, software, storage device, and carriers with special hardware to perform
the connections. A communications system provides voice and data communications services, including
access to public and private networks, for telephones and data terminals on a customer’s premises. See also
switch.
confirmation tone
A tone confirming that feature activation, deactivation, or cancellation has been accepted.
connectivity
The connection of disparate devices within a single system.
console
See AT M - C ES .
contiguous
Adjacent DS0s within one T1 or E1 facility or adjacent TDM or fiber time slots. The first and last TDM bus,
DS0, or fiber time slots are not considered contiguous (no wraparound). For an E1 facility with a D-channel,
DS0s 15 and 17 are considered contiguous.
control cabinet
See control carrier.
control carrier
A carrier in a multi-carrier cabinet that contains the SPE circuit packs and, unlike an G3r control carrier, port
circuit packs. Also called control cabinet in a single-carrier cabinet. See also switch-processing element
(SPE).
controlled station
A station that is monitored and controlled via a domain-control association.
COR
See Class of Restriction (COR).
COS
See Class of Service (COS).
coverage answer group
A group of up to eight voice terminals that ring simultaneously when a call is redirected to it by Call Cover-
age. Any one of the group can answer the call.
coverage call
A call that is automatically redirected from the called party’s extension to an alternate answering position
when certain coverage criteria are met.
coverage path
The order in which calls are redirected to alternate answering positions.
coverage point
An extension or attendant group, VDN, or ACD split designated as an alternate answering position in a cover-
age path.
covering user
A person at a coverage point who answers a redirected call.