Enable WebRTC to Join a Microsoft Teams Meeting from Webex Boards, Room Devices, and Desk Pros
By enabling WebRTC in Control Hub, Webex devices and participants with devices in Personal mode invited to a Microsoft Teams meeting can join the meeting directly from their devices with One Button to Push (OBTP).
In order to enable Microsoft Teams WebRTC Calling, the hybrid calendar needs to be on. Make sure that the web engine is on as well – If not, follow the steps described here to turn it on.
If your device is linked to Webex edge for devices, you need the CE9.14.3
From the customer view in https://admin.webex.com, go to the Devices page.
Select Settings in the top right corner and navigate to WebRTC Support. Toggle on Enable Microsoft Teams WebRTC Calling.