In-call conference control and icons
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Lock conference: This prevents any more participants from joining this conference.
Those that attempt to do so instead see a splashscreen telling them that the meeting is
locked
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Mute all: This control mutes all other participants in the meeting. Participants muted in
this way see a 'you are muted' notification
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End conference: This control causes the conference to end and all participants to be
disconnected from it. There is a confirmation dialog before the meeting is ended
Group Telepresence, 27 September 2017 Page 31 of 38