RADVision MCU-323, User Manual

Page: 23 / 185

MCU-323 Topologies
1-9
Bandwidth Considerations
When all the conference participants are connected to a LAN, the available bandwidth is
determined by the capacity of the video conferencing programs in use, the use of audio
transcoding, and policies set by the system administrator. The system administrator can
limit the available bandwidth through the Gatekeeper settings. For more information, see
Configuring the Built–in Gatekeeper.
When one or more of the conference participants is not on the LAN, and is connected to the
conference via a Gateway, the available bandwidth is determined by factors such as the
Gateway connection and audio transcoding capabilities.
Most videoconferencing terminals support varying bandwidths (video bit rates) and frame
rates. To prevent videoconferencing terminals that support lower video bit and frame rates
from receiving unsuitable quality video, you should set the service parameters according to
the lowest video bit rates and frame rates supported. You can also set a Dynamic Bandwidth
service, in which the MCU-323 adapts the bandwidth to the videoconferencing terminal
with the lowest bandwidth capacity. See
Defining Conferencing Services in Configuring the
Unit for configuration information.