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Determines which audio codecs the MCU
advertises to remote endpoints, restricting the
endpoints' choice of channels available for sending
audio data to the MCU.
Note that the Custom codec selection setting for an
individual endpoint will override this unit-wide
setting for calls from that endpoint.
Restricts the MCU's choice of video codecs to be
used for transmitting video to endpoints.
When communicating with an endpoint, the
MCU receives a list of supported video codecs
from the endpoint. The MCU chooses a video
codec from those available, and sends video data
to the endpoint in that format.
Note that the Custom codec selection setting for an
individual endpoint will override this unit-wide
setting for calls to that endpoint.
Determines which video codecs the MCU
advertises to remote endpoints, restricting the
endpoints' choice of channels available for sending
video data to the MCU.
Note that the Custom codec selection setting for an
individual endpoint will override this unit-wide
setting for calls from that endpoint.
When enabled, the MCU will upscale video
streams from participants who are sending low
resolution video with the purpose of making best
use of the MCU's HD video capabilities.
The MCU uses intelligent resolution upscaling
technology to improve the clarity of low-
resolution video. Check this setting to enable it
to do so.
Allows the MCU to vary the resolution and codec
of the video being sent to a remote endpoint
within the video channel established to that
endpoint. The options are:
: Do not allow video size to be
changed during transmission
: Allow video
size to be optimized during transmission
: Allow
video size to be optimized during
transmission and/or dynamic codec
selection
With this option enabled, the MCU can, for
instance, decide to send CIF video within a 4CIF
channel if this will increase the viewed video
quality.
The circumstances under which decreasing the
video resolution can improve the video quality
include:
if the original size of the viewed video is
smaller than the outgoing channel
if the remote endpoint has used flow
control commands to reduce the
bandwidth of the MCU video
transmission
Typically, lowering the resolution means that the
MCU can transmit video at a higher frame-rate.
This setting can be used to influence the choice of
outgoing video resolution made by the MCU in
certain circumstances.
The MCU will use its normal internal
algorithms to dynamically decide which
resolution to send in order to maximize
the received video quality.
You should leave this at Default unless your
environment dictates 448p or w448p resolutions
only.