The Terminal Server Licensing procedure is designed to manage the Terminal Services CALs that are required to connect any user or device to the server. Use Remote Desktop Licensing to install and release TS CALs on the Remote Desktop Licensing server and monitor their availability.
Important! Remote Desktop supports two simultaneous connections for remote administration of a computer. These connections do not require a license server.
To use Terminal Services, you must deploy at least one license server in your environment. In smaller environments, you can install Terminal Server and Remote Desktop Licensing on the same computer at the same time. In large environments, we recommend that you install the Remote Desktop Licensing and Terminal Server role services on separate computers.