Windows Server CAL 2019 SNGL OLP NL DvcCAL

A Windows Server Client Access License (CAL) is a license that gives a user or device the right to access services, such as printing or access to a file share, from a server running the Windows Server operating system (OS)

A device CAL must be purchased for each device that accesses the server and is appropriate for machines that are used by several users, such as in a call center