Go to and sign in with your admin account.Find the Teams Rooms license under Room License.
Enter your admin password and select Yes.To check which version of Teams is installed and which Teams Rooms license is applied to your device: The custom background options available to you, and how you set them up, depend on the version of Teams Rooms installed on your device and whether the device has a Microsoft Teams Rooms Pro or Microsoft Teams Rooms Basic license. For example, you can add a copy logo to your background images and include contact information for your organization's help desk if meeting attendees need help. You can create custom background images for your Microsoft Teams Rooms on Windows devices to represent your brand or to provide instructions to Teams Rooms users.