Polycom ViewStation SP, User Manual

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Glossary
ViewStation SP User Guide 160 www.polycom.com
ARJ Admission Reject Message. In an H.323
environment, the ARJ is the message from
the Gatekeeper to an endpoint rejecting the
endpoint’s request to connect to another
endpoint.
ARQ Admission Request Message.In an H.323
environment, the ARQ is the message to the
Gatekeeper from an endpoint requesting a
connection to another endpoint.
Audio Bandwidth The audio frequencies a device can handle.
This refers to the range of sound (treble and
bass or voices for speakerphones.)
Automatic Voice Tracking A feature on Polycom ViewStations that
allows the camera to point towards the
person speaking.
Bandwidth The "data-carrying" capacity of a network
connection, used as an indication of speed.
For example, an Ethernet link is capable of
moving 10 million bits of data per second. A
Fast Ethernet link can move 100 million bits
of data per second – 10 times more
bandwidth.
Bits per second (bps) The amount of information which passes
through a transmission line in a second. A bit
is one-eighth of a byte.
Bonding Calls In ISDN BRI transmissions, bonding refers to
joining the two 64 Kbps B channels together
to get one channel of 128 Kbps
BRI The ISDN Basic Rate Interface, or BRI,
provides two B channels and one 16 Kbps D