A room is a type of mailbox that’s assigned to a location (conference room, auditorium, or community center room) in your organization. After an admin creates a room mailbox, users can easily reserve rooms by including room mailboxes in meeting requests. An equipment mailbox is a type of mailbox that's assigned to a piece of equipment (portable computer, projector, microphone, or a company car) in your organization. After an admin creates an equipment mailbox, users can easily reserve the piece of equipment by including the equipment mailbox in a meeting request.
Adding a room or equipment mailbox to a meeting request
You can add a room or equipment mailbox to a meeting request as an attendee. Select the piece of equipment or the room from your company's address list. You'll see the room or equipment's free/busy status in the Attendees section of the meeting request.