For appointment requests that come via the calendar, you as a moderator can receive a note by email. In this way, you can react to appointment requests as quickly as possible and process them. The appointment requests can be accepted or rejected in the backend. If the appointment has been accepted by you as moderator, the viewer will receive a confirmation email with the link to the live session.
In the backend under Settings -> Scheduler, the settings for e-mail notices can be made.