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).
The anonymous join setting is on by default in Microsoft Teams. If it is off, you can turn it on in Microsoft Teams so that Webex devices can join over WebRTC. For more information about how to enable this setting please go here.
If your device is linked to Webex edge for devices, you need the CE9.14.3 software version.
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 .