Avaya Communication Manager Administrator's Manual page 1781

API
Application programming interface
APLT
Advanced Private-Line Termination
appearance
A software process that is associated with an extension and whose purpose is to supervise a call. An
extension can have multiple appearances. Also called call appearance, line appearance, and
occurrence. See also
application
An adjunct that requests and receives ASAI services or capabilities. One or more applications can
reside on a single adjunct. However, the switch cannot distinguish among several applications
residing on the same adjunct and treats the adjunct, and all resident applications, as a single
application. The terms application and adjunct are used interchangeably throughout this document.
applications processor
A micro-computer based, program controlled computer providing application services for the
DEFINITY switch. The processor is used with several user-controlled applications such as traffic
analysis and electronic documentation.
application service element
See capability
architecture
The organizational structure of a system, including hardware and software.
ARS
See Automatic Route Selection
ASA
Avaya Site Administration.
ASAI
See Adjunct-Switch Application Interface (ASAI)
ASCII (American Standard Code for Information Interchange)
The standard code for representing characters in digital form. Each character is represented by an
8-bit code (including parity bit).
ASG
Access Security Gateway.
association
A communication channel between adjunct and switch for messaging purposes. An active association
is one that applies to an existing call on the switch or to an extension on the call.
asynchronous data transmission
A method of transmitting data in which each character is preceded by a start bit and followed by a
stop bit, thus permitting data characters to be transmitted at irregular intervals. This type transmission
is advantageous when transmission is not regular (characters typed at a keyboard). Also called
asynchronous transmission. See also
asynchronous data unit (ADU)
A device that allows direct connection between RS-232C equipment and a digital switch.
Asynchronous Transfer Mode (ATM)
A packet-like switching technology in which data is transmitted in fixed-size (53-byte) cells. ATM
provides high-speed access for data communication in LAN, campus, and WAN environments.
Administrator's Guide for Avaya Communication Manager
November 2003
call appearance.
group.
(ARS).
synchronous data
Glossary and Abbreviations
transmission.
A
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