This is a question I get asked quite often: How to create a Conference Room mailbox. Fortunately the Microsoft Online Services Team has posted a great support video about the subject, covering Exchange Online.
“Conference rooms can be created as a resource by the Microsoft Online Services administrator. You can create a calendaring resource for any room, piece of equipment or anything else that needs a reservation. In our latest BPOS-S video we learn how to create these resources. This is a very useful feature that has multiple purposes for any business. ”