Activate and deactivate the video
Immediately after the supervisor has enabled a user to intervene, the Webcam icon on the toolbar - that until then is enable - passes to an active state and the channel on which the user is able to intervene and send video from the user at the same time, which is simultaneously received by all the users and displayed on the channel.
If you need to pause sending an image from your Webcam, for example the presence of an extemporaneous guest must, press the button to deactivate it (or use the horizontal menu Channel à deselect Send video).