When utilizing Outlook with Exchange you can either book the room resource or forward the meeting to the room.
Booking a Room Resource Using Outlook
There are 3 options to invite the room in Outlook
1. Invite the Room by Email Address
2. Choose from Room List
3. Select from Room Finder
MT - Then Choose Your Type of Meeting
Then invite participants
Forward the Meeting to a Room
Optionally forward a meeting invite to the room from Outlook or your mobile device
Right click on calendar meeting, choose forward then type in the room email address.
Note: Often organizations will put the room email address as the room name.