Desktop Videoconferencing; Group Videoconferencing - AT&T MERLIN LEGEND Release 3.1 System Manager's Manual

Optimizing Your System
For more information about any of these products and features, see the Feature
Reference or contact your AT&T representative.

Desktop Videoconferencing

A desktop videoconferencing application is designed for individual video calls,
data transfer, and screen-sharing between two compatible personal computers
that are running compatible software.
The desktop videoconferencing system can use either one MLX B-channel or
two, although one is not adequate for video display. The use of one B-channel is
called 1B data ; the use of two data channels is referred to as 2B data .
Acceptable quality and performance results from a 2B data installation.
Depending upon the type of high-speed digital facilities and interface
arrangement connected to your system, 1B data transfer takes place at 56 or 64
kbps, and 2B data transfer takes place at 112 or 128 kbps.
An MLX telephone may be connected to some desktop videoconferencing
systems. The telephone shares the MLX extension. If the MLX telephone is on a
call, the desktop videoconferencing application has only one B-channel
available and is limited to 1B data. On some systems, the second B-channel is
added when the MLX telephone becomes idle. See the Feature Reference for
more information about desktop videoconferencing.

Group Videoconferencing

Group videoconferencing enables groups of people in different geographical
locations to meet face to face. Conferees can exchange information,
documents, ideas, and data while employing a variety of visual aids, including
interactive writing and drawing, prepared text and graphic materials, and
prerecorded audio and video material. You can have all the advantages of
face-to-face meetings while decreasing your travel budget.
Most group videoconferencing applications include an easy-to-use control
console that allows you to conduct the conference as easily as you operate a
telephone. It includes superior camera optics and digital audio signals.
The components of the system can be integrated on a mobile console that rolls
easily into a conference room prior to a scheduled video conference call.
Alternatively, some companies build their systems into a video conference
room.
Putting the System to Work
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