If you do not have the authority to access either camera or microphone
If the participant has the authority to access the camera
and microphone and if they are turned off
If the participant does not have the authority to access either camera or microphone
If the camera icon or microphone icon is not shown in the gray bar at the top, you do not have the authority to access the camera or microphone.
In this case, ask the person with the authority in the meeting room (teacher, assistant, presenter, or emcee) to click the camera and microphone icons next to the names in the participants’ list to switch the color from light gray to black or red.
If the camera and microphone do not work even though the camera and microphone icons are turned on in the gray bar at the top,
click the lock button to the left of the address bar to see if the camera and microphone are set as Allow.