When you set a notification sound, it's set for all meetings, including any meeting that you're currently in. You only hear the sound when you're the host or cohost. The sound plays once every 10 seconds, regardless of how many people have entered the lobby.

1

When you're in a meeting, click Audio options > Settings.

When you're not in a meeting, open settings from your profile picture
2

Click Notifications > Meetings.

3

Under Meeting action sounds, check A participant is waiting in the lobby and choose a sound from the drop-down list.

4

Click Save.

1

When you're in a meeting, click Audio options > Preferences.

When you're not in a meeting, open preferences from your profile picture
2

Click Notifications.

3

Under Meeting action sounds, check A participant is waiting in the lobby and choose a sound from the drop-down list.

4

Click Save.