Room booking screen, connected to Microsoft 365 or Google Workspace
A screen or tablet outside each room, reading the room's calendar and showing its real occupancy — and letting people book on the spot. No double entry, no account to connect device by device.
Room booking — tablet and Microsoft 365
Your turn — Tap the tablet or click in the calendar: the booking syncs both ways.
Salle Confluence
lundi 18 août
Click on a free slot to book it, or on a meeting to cancel it.
The room's calendar is the source of truth
In front of a closed door, the question is always the same: is the room free, and until when? Answering it means opening your own calendar, finding the right resource, and hoping the booking was made against it correctly. Most of the time, people just walk in and look.
The room calendar widget removes that step by showing occupancy right where the question comes up. It doesn't keep its own schedule: it reads the room's calendar and shows what it finds there. A meeting created in Outlook or Google Calendar appears on the room's screen, a cancelled meeting disappears from it, without any information being re-entered anywhere.
That's the point the whole deployment hinges on. Any booking system that requires a second entry eventually drifts away from the real calendar, and a screen that contradicts the calendar is worse than no screen at all: people stop trusting it within a few weeks, and the equipment turns into furniture.
Three calendar sources, one app-level authorisation
The room connects to whichever calendar you already use, without switching tools.
- Microsoft 365, via Microsoft Graph: reading room calendars and booking from the screen.
- Google Workspace, via Google Calendar: the same capabilities, plus automatic room discovery — resources declared in the admin console are offered for selection, with no need to type each address by hand.
- An iCal feed, for organisations using neither. This is read-only: the screen shows occupancy, but you can't book from the room.
No per-screen account, and booking on the spot
Whether on Microsoft or Google, access relies on an app-level authorisation granted once on the server side: it's the server that queries the calendar, not the device mounted on the wall. There's therefore no user account to connect device by device, no session to reopen on a tablet fixed three metres up, no password shared across twelve screens, and no personal mailbox that becomes a single point of failure the day its owner leaves the company.
On rooms marked as bookable, the screen doesn't just display: it lets people book the current or upcoming slot, and cancel a booking. The event is created directly in the room's calendar, so it's immediately visible to everyone, from Outlook or Google Calendar. This is the use case that saves the most time day to day — claiming a free room without going back to your desk.
Configuration is then done room by room: each device is linked to the resource it announces, and you choose whether it's bookable or display-only. It takes a bit of work at installation, but it's not something you redo.
The cost of a room fleet, and the visual cue that changes everything
A room doesn't need a full digital signage display: the information fits on a small panel, and the device streams neither video nor promotional content. That's why a room screen or tablet falls under the Lite licence, cheaper than the Premium licence of a full display screen. Across twenty rooms, the difference shows up directly on the annual bill.
On certain Philips and iiyama screens, a status light complements the display: green when the room is free, red when it's occupied. The point isn't decorative. In a corridor, a colour reads from fifteen metres away, while reading a schedule requires getting close. Someone looking for a free room can scan the whole floor at a glance instead of going door to door.
Everything else follows the platform's general rules. Content is cached locally, so a device keeps showing what it already knows if the network drops, then resyncs once the connection is back. Remote monitoring shows which devices are online and what they're actually displaying, which avoids discovering three weeks later that a tablet was unplugged during renovation work. Data is hosted in the European Union. From 50 devices of the same type, a discount becomes negotiable, and the subscription remains contract-free.
Questions fréquentes
Does the room screen work with Google Workspace or only Microsoft 365?
Both. The room connects to Microsoft 365 via Microsoft Graph, or to Google Workspace via Google Calendar. On the Google side, rooms declared in the admin console are discovered automatically, avoiding manual entry of each resource address. An iCal feed is also supported, read-only.
Can the room be booked directly from the screen?
Yes, on rooms marked as bookable: the screen lets you book the current or upcoming slot and cancel a booking. The event is created in the room's calendar, so it's immediately visible from Outlook or Google Calendar. Rooms connected via an iCal feed remain read-only.
Does an account need to be connected on every room screen?
No. Access to calendars relies on an app-level authorisation granted once on the server side, not on a user session opened device by device. There's therefore no password shared across tablets, and no session to renew screen by screen.
How much does a screen outside a meeting room cost?
A room screen or tablet falls under the Lite licence, cheaper than the Premium licence of a full display screen. From 50 devices of the same type, a discount becomes negotiable, and the subscription remains contract-free. Full pricing is on the Pricing page.
Can you tell from a distance whether a room is occupied?
On certain Philips and iiyama screens, a status light turns green or red depending on room occupancy. The colour can be spotted from the end of a corridor, where you'd otherwise need to get close to read a schedule on the screen.