| Using Yealink Meeting Server | 354. Tap or to adjust the focal length.Turning on/off the Participant CamerasThe moderator can enable or disable the participant's camera to control whether other participants can seethe video of the participant.Procedure1. In the Conference Control page, tap Participant.2. Tap / after the desired participant to disable/enable the camera.Changing the Meeting LayoutThe meeting layout consists of the participant video images and moderators can change the layout duringthe conference. In discussion mode, the changed layout take effects to all participant; in the training mode,it takes effect to moderators only.About this taskThe default value of the meeting layout is set by the administrator. For equal N×N, the maximum number ofvideo images per screen is 7*7; for 1+N, it is 1+20.Procedure1. In the Conference Control page, tap Participant.2. Select Meeting Layout.3. Select the desired layout.Leaving the ConferenceWhen some conference participants leave the conference, other participants keep going.ProcedureDo one of the following according to your role:• If you are a moderator of a video conference, tap Hang Up and select Leave, others keep going onthe Conference Control screen.• For other conference members, tap Hang Up on the Conference Control screen.Ending the ConferenceOnly the moderator can end the conference, and after the conference is ended, all conference participantsleave the conference.ProcedureTap Hang Up and select End conference.