Room booking systems that function as multimedia door signs effectively support you in organising occupancy in conference and meeting rooms. They provide immediate information directly on the wall or door, for example which meeting is currently taking place in the room and how long it will last. In addition, these systems are characterised by their aesthetically pleasing design, which blends seamlessly into any room design. Traditional installation is via mains power or PoE. However, some systems, such as the JOAN, can already be installed wirelessly.