If a great number of users are in an education meeting room, most students have their microphones turned off. If a student who does not have the authority of the microphone wishes to speak, click the Request Right to Speak button.
Then, the teacher or teaching assistant will Accept the right to speak to assign the authority.
When clicking the Request permission to Speak button at the top right, it changes to blue and the right to speak is requested.
※ However, the microphone does not turn off automatically so you must turn it off on your own.