Instruction manual

DEFINITY® Business Communications System and GuestWorks® Issue 6
Overview
555-231-208
Issue 1
April 2000
Glossary and Abbreviations
GL-7
carrier
An enclosed shelf containing vertical slots that hold circuit packs.
carried load
The amount of traffic served by traffic-sensitive facilities during a given interval.
CAS
Call Accounting System
CCS or hundred call seconds
A unit of call traffic. Call traffic for a facility is scanned every 100 seconds. If the facility is busy, it is
assumed to have been busy for the entire scan interval. There are 3600 seconds per hour. The
Roman numeral for 100 is the capital letter C. The abbreviation for call seconds is CS.
Therefore, 100 call seconds is abbreviated CCS. If a facility is busy for an entire hour, then it is said
to have been busy for 36 CCS. See also Erlang
.
capability
A request or indication of an operation. For example,
Third Party Make Call is a request for setting
up a call;
event report is an indication that an event has occurred.
capability group
A set of capabilities, determined by switch administration, that can be requested by an application.
Capability groups denote association types. For example, Call Control is a type of association that
allows certain functions (the ones in the capability group) to be performed over this type of
association. Also referred to as administration groups or application service elements (ASEs).
CCIS
Common-Channel Interoffice Signaling
CCITT
CCITT (Comitte Consultatif International Telephonique et Telegraphique), now called
International
Telecommunications Union
(ITU). See International Telecommunications Union (ITU).
CCS
Centum Call Seconds (CCS or hundred call seconds
).
CCSA
Common-Control Switching Arrangement
CDM
Channel-division multiplexing
CDR
See Call Detail Recording (CDR)
.
CDRP
Call Detail Record Poller
CDRR
Call Detail Recording and Reporting
CDRU
See Call Detail Recording utility (CDRU)
.
CEM
Channel-expansion multiplexing