
398 Glossary
Enterprise Edge Programming Operations Guide P0911588 Issue 01
AWG
American wire gauge.
B
B channel (Bearer channel)
An ISDN standard transmission channel used for voice or data transmission.
Background Music
A feature that lets you hear music from the speaker of your telephone. It is available
only if a music source has been attached to the system and the feature has been
enabled under Feature settings in System programming.
Back up
To make a duplicate copy of data files so that you can store the originals in a safe
place. Backing up your original files protects them from damage if a hardware
failure occurs.
Base Station
A Companion component that is mounted on walls and ceilings to provide a radio
link to an office or other area where Companion portable telephones are used. Each
Base Station houses two radios that allow portables to send and receive calls
through the Enterprise Edge Server.
BasicRateInterace(BRI)
An ISDN interface which uses two B channels and a D channel (2B+D). ETSI BRI
is the European Telecommunications Standards Institute specification for BRI
ISDN service
Baud rate
A unit of measurement of data transmission speed. It is approximately equivalent to
Bits Per Second (BPS). Typical baud rates are 300, 1200, 2400, 4800, and 9600.
Bearer channel
See B channel.
BERT
See bit error rate test.
BIOS (Basic Input Output System)
A program contained in Read Only Memory (ROM) that acts as the interface
between software programs and the computer hardware.
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