In this video tutorial from Microsoft, you will learn how to add a Teams Rooms Basic license. Microsoft Teams Rooms Basic provides core meeting experiences to organizations that purchase a certified Microsoft Teams Rooms system, at no additional cost. The Teams Rooms Basic license includes scheduling, joining meetings, content sharing, and collaborative white boarding, as well as basic security and management capabilities out-of-the-box.

A Teams Rooms Basic license can be used to license a single certified Teams Rooms system in a room. If you want to log into more than one Teams Rooms system in a room using the same resource account, you need to use a Teams Rooms Pro license.

You can assign up to 25 Microsoft Teams Rooms Basic licenses to Teams Rooms systems in your organization. If you need to license more than 25 Teams Rooms systems, those additional licenses need to be Teams Rooms Pro licenses. Teams Rooms Basic licenses can be used to license Teams Rooms systems only and not Teams Panels.

Learn more: https://learn.microsoft.com/en-us/microsoftteams/rooms/rooms-licensing