Polycom 7.5 Manual De Usuario

Defines the information carrying capacity of a channel. In 
analog systems, it is the difference between the highest 
frequency that a channel can carry and the lowest, 
measured in hertz. In digital systems, bandwidth is 
measured in bits per second. The larger a connection's 
bandwidth, the more data can be transmitted in a given 
amount of time, allowing for greater video resolution and 
more sites in a conference. See Line Rate.

Bitrate Allocation Signal. BAS codes are used to 
exchange information about capabilities and commands 
between devices at opposite ends of a digital video 
connection.

Bearer Channel. A channel in a span or in a group of 
spans, that carries audio-visual data. The ISDN circuit-
switched bearer channel is capable of transmitting 64 
Kbps of digitized information.

Bandwidth ON Demand INterpolarity Group. A 
transmission protocol that aggregates two 64 Kbps B 
channels to function as one 128 Kbps channel. When 
using several BRI channels, Bonding means that only one 
D-channel serves all BRI channels, while the remaining 
D-channels are used for data transfer.
See also: BRI.

Bits and kilobits per second; a unit of bandwidth, that is 
the amount of data that can flow during one second over a 
communications line (using a transmission medium).
1 Kbps=1000 Bps

Basic Rate Interface. A type of ISDN connection for 
transmitting data, consisting of 3 channels: two B-
channels (each of 64 Kbps) and one D-channel (16 
Kbps).

A telephone or other company that provides 
telecommunication transmission services.

The use of two MCUs in a multipoint video conference, 
allowing for multipoint conferences with more than 12 
video participants.