Maintenance Manual

■ full
control
This level of control permits the following operations:
Participant control
With full conference control, a user is able to disconnect participants, connect new participants
to the conference, and end the conference whenever they want to.
Configuration access
A user with full conference control can view and modify any aspect of the conference's
configuration. This includes the start time, end time, or repetition characteristics, whether
streaming is enabled, and which endpoints are pre-configured as participants.
Changing live conference parameters
When the conference is in progress, a user with full control is permitted to send a text message to
all connected participants' video displays and change the Conference custom layout.
Additionally, full control includes all of the operations covered by limited control, detailed below.
■ limited
control
This level of control permits the following operations:
Viewing the participant list
The participant list shows the names of the endpoints currently connected to the conference, a
summary of that endpoint's status and, if they are a video participant, a thumbnail preview image
of the video stream they are supplying. Thumbnail previews are shown by default, but you can
configure the user interface not to show them. The setting that controls this is the Show video
thumbnail images option on the Settings>User interface page. Note that the MCU will not show
thumbnail previews on the participant list page if encryption is required for a conference. However,
thumbnail previews will be shown for conferences where encryption is optional and there are
encrypted participants.
Via the participant list, it is also possible to mute (or stop muting) individual endpoints' audio,
change the conference's "important" participant, and enable or disable the participants' ability to
affect their own layouts via far-end camera control or DTMF tones.
Controlling video sent to participants
This includes being able to choose what view layout (or family) is used for constructing the
conference view being sent to a participant, changing the Participant custom layout, and whether
to send widescreen or standard format video to that endpoint.
Controlling participant cameras
The web interface can be used to send control commands (e.g. pan and tilt) to a remote
participant's camera.
Viewing audio status
Waveforms of audio channels being sent to, and received from, the participant can be viewed,
audio gain applied, and participant audio can be muted if required.
Sending messages to individual participants
Textual messages can be sent to an individual participant, and will appear on their displays.
Viewing participant statistics and diagnostics
This allows details of the media streams being sent to, and received from, participants to be
viewed, plus endpoint-specific characteristics to be examined.
■ no
control
This means that none of the above operations are possible. Depending on the specific privilege
level, either the list of scheduled conferences will not be shown to the user, or the list will be
shown but conferences over which the user has no control will be presented as names rather than
hyperlinks.
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