RADVision MCU-323, Руководство пользователя

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1-1
Introduction
The concept of videoconferencing is older than the advent of computers. The desire to add a
video dimension to telephone calls was discussed as early as the 1920's. Multimedia
conferencing over packet-based networks is the newest frontier of videoconferencing,
adding the dimension of data collaboration to audio and video. The latest developments
increase the efficient use of bandwidth and reduce the cost of both ownership and the use of
videoconferencing equipment. Using common terminal equipment, anyone can carry on a
videoconference with multiple participants, supported by an easy to use Multipoint
Conferencing Unit (MCU) that runs unattended.
The RADVision MCU-323 system is a complete multimedia multipoint conferencing
solution that includes a Multipoint Conferencing Unit and a Gatekeeper integrated into one
box. The MCU-323 provides multipoint conference call services at low cost and high
performance levels. Based on the RADVision H.323 Stack, which is widely used in many
other H.323 compliant products, the MCU-323 is fully H.323 compliant and provides a high
degree of interoperability with other conferencing systems and components. The MCU-323
offers a scalable solution at a low entry price. Utilizing distributed topologies that
significantly reduce the overall bandwidth and CPU use per connection, the MCU-323 also
reduces the dependence on costly telephone and ISDN lines.
LAN
L2W-323
Gateway H.323
Terminal
MCU-323
Conference Unit
H.323
Terminal
H.320
Room System
H.323
Terminal
VIU-323
Video Interface
Unit
V.35
ISDN
Figure 1-1 – Typical Multipoint Conference Layout