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Chapter
12
Glossary
12.1 A
ACD
Automatic Call Distribution. A computerized phone system that responds to the caller with a
voice menu, and connects the call to the required agent. It can also control call flows by
automatically routing calls in the order of arrival.
ACSE
Association Control Service Element. OSI convention used for establishing, maintaining and
releasing connections between two applications.
ADN
Additional Designation Number.
AFU-1 Auxiliary Function Unit. Daughter board of the PowerCPU EE/PowerCPU EE C25 board
supporting ancillary functions such as doorphone, audio in, audio out, etc.
AMIX-1 Mixed analog equipment board: analog accesses with CLIP functionalities, analog and digital
terminal connection interfaces.
AP
Access Point. A device that acts as a switch between the wireless LAN (802.11a, b, or g)
and the wired LAN (802.3). There are two types of APs: Thin and Fat. The newer Thin
technology AP consists of a thin AP and an access controller (also known as a wireless
controller). Only the time-critical functions are managed by the thin AP. The other features
are managed by the access controller.
APA
Analog Public Access. Board allowing the connection of analog network lines (switched
network) with CLIP functionality. That board, equipped with GSCLI boards (Ground Start), is
compatible with the American public network.
API
Application Programming Interface
ARI
Access Right Identifier. System identification number (DECT feature).
ARS
Automatic Route Selection. A logic direction is a set of trunks used for a call with the
following facilities: seeking out the optimal path for a call, using the least-cost operator or
network; overflow management: enables a PCX to find a new route to make an outgoing call
when there are no resources available in the initial trunk.
ASN-1 Abstract Syntax Notation 1. OSI language for describing data types independently of
processor structures and technical representations.
ATA
Analog Trunk Access. Board for connecting analog network lines (switched network).
12.2 B
BACKGROUND
MUSIC
BACP
BAP
BOD
8AL91217USAA - Ed. 01 - July 2018 - Installation Manual
External device (e.g. radio tuner) that can broadcast music over the
loudspeakers of idle terminals; broadcasting is stopped automatically if there is
an incoming call to the terminal or if the user makes a call.
Bandwidth Allocation Control Protocol. Control protocol associated with BAP.
Bandwidth Allocation Protocol. PPP protocol that manages bandwidth by
allocating it dynamically between two ports, i.e. between the two extremities of
a point-to-point link.
Bandwidth On Demand. Service that allocates bandwidth automatically in
response to traffic volume.
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