Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 819

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
I Applications
Videoconferencing
Microphone
Video codec circuitry that digitizes and compresses audio and video
signals
Cables
Software
Additional data communication equipment may be built-in or required as separate
components.
Group and desktop videoconferencing systems differ primarily in the capabilities
and sophistication of the equipment and software that they include. The type of
interface , not whether they designed for groups or individuals, differentiates their
use with the communications system.
Making and receiving voice calls are not supported on telephones included with
videoconferencing systems. However, the system's 2B Data feature allows
connection of a passive-bus MLX telephone to a desktop videoconferencing
system, as described in the topic
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. Visual aids can include
interactive writing and drawing, prepared text and graphic materials, and
prerecorded audio and video material. Improved technology, superior camera
optics, and digital audio signals result in video pictures that are equal to
commercial broadcast quality.
Users start videoconferences from an easy-to-use control console and conduct
the conference as easily as they operate a telephone. No special technical
expertise is required.
Group video systems are often integrated in a mobile roll-about console that can
be wheeled easily into a conference room or executive office prior to a scheduled
videoconference call. Alternatively, the components can be built into a
videoconference room.
Older group videoconferencing systems use V.35 interfaces, requiring two ISDN
terminal adapters or an inverse multiplexor (IMUX); these components are
sometimes included with the systems. Newer group videoconferencing systems
use ISDN/BRI interfaces and include data communications equipment.
''Desktop Videoconferencing'' on page
9
Issue 1
June 1997
Page I-62
I-63.