From Version 1.6 of Roomr of iOS and Version 1.3 of Roomr for Android, you can scan a QR code to provide a quick shortcut to a room and its schedule.
This makes it easy to get booking information without needing to know the email address for a particular room.
"firstname.lastname@example.org|Main Meeting Room"
Once a QR code has been scanned, the status of the room will be loaded. You'll then have the option to add the room to your list if it's not already present. This is useful for visitors from different regions that may not care about the status of a particular room once they leave their current region.