Lucent Technologies DEFINITY Enterprise Communication Server Release 8.2 Administrators Guide

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Glossary and abbreviations 
1617  
AT M
See Asynchronous Transfer Mode (ATM).
attendant console
The workstation used by an attendant. The attendant console allows the attendant to originate a call, answer 
an incoming call, transfer a call to another extension or trunk, put a call on hold, and remove a call from hold. 
Attendants using the console can also manage and monitor some system operations. Also called console. See...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Glossary and abbreviations 
1618  
Automatic Route Selection (ARS)
A feature that allows the system to automatically choose the least-cost way to send a toll call.
automatic trunk
A trunk that does not require addressing information because the destination is predetermined. A request for 
service on the trunk, called a seizure, is sufficient to route the call. The normal destination of an automatic 
trunk is the...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Glossary and abbreviations 
1619  
BCC
See Bearer capability class (BCC)
.
BCMS
Basic Call Management System
BCT
See business communications terminal (BCT).
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...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Glossary and abbreviations 
1620  
BTU
British Thermal Unit
buffer
1. In hardware, a circuit or component that isolates one electrical circuit from another. Typically, a buffer 
holds data from one circuit or process until another circuit or process is ready to accept the data.
2. In software, an area of memory that is used for temporary storage.
bus
A multiconductor electrical path used to transfer information over a common...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Glossary and abbreviations 
1621  
Call Detail Recording (CDR)
A feature that uses software and hardware to record call data (same as CDRU).
Call Detail Recording utility (CDRU)
Software that collects, stores, optionally filters, and outputs call-detail records.
Call Management System (CMS)
An application, running on an adjunct processor, that collects information from an ACD unit. CMS enables 
customers to monitor and manage...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Glossary and abbreviations 
1622  
capability group
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 func-
tions (the ones in the capability group) to be performed over this type of association. Also referred to as 
administration groups or application service...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Glossary and abbreviations 
1623  
CDRR
Call Detail Recording and Reporting
CDRU
See Call Detail Recording utility (CDRU).
CED
Caller entered digits
CEM
Channel-expansion multiplexing
center-stage switch (CSS)
The central interface between the processor port network and expansion port networks in a CSS-connected 
system.
central office (CO)
The location housing telephone switching equipment that provides local telephone...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Glossary and abbreviations 
1624  
CISPR
International Special Committee on Radio Interference
Class of Restriction (COR)
A feature that allows up to 96 classes of call-origination and call-termination restrictions for voice terminals, 
voice-terminal groups, data modules, and trunk groups. See also Class of Service (COS)
.
Class of Service (COS)
A feature that uses a number to specify if voice-terminal users can activate the...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Glossary and abbreviations 
1625  
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...

DEFINITY ECS Release 8.2
Administrator’s Guide  555-233-506  Issue 1
April 2000
Glossary and abbreviations 
1626  
CSCN
Center-stage control network
CSD
Customer-service document
CSM
Centralized System Management
CSS
See center-stage switch (CSS).
CSSO
Customer Services Support Organization
CSU
Channel service unit
CTS
Clear to Send
CWC
See call work code.
D
DAC
1. Dial access code or Direct Agent Calling
2. See digital-to-analog converter (DAC)
.
data channel
A communications path between two points...