Allow all users to view meeting details for room mailbox

By default users can only see calendar items in Room mailboxes as Busy, there is no way to see who has booked a room.  By using the Set-MailboxFolderPermission cmdlet it is possible to change the permissions.  This example shows how to give everyone Reviewer access to a room mailbox called Boardroom:

Set-MailboxFolderPermission Boardroom:\Calendar -User Default -AccessRights Reviewer