What is a Client Access License (CAL)?
If your company’s workstations are networked, you will utilize a network server and the workstations on the network will access that server(s) software to perform certain functions such as file and print sharing. In order to legally access this server software, a client access license or CAL may be required. A CAL is not a software product; rather it is a license that gives a user the right to access the services of the server.
Due to the technical nature of server products, CAL licensing can be a complicated area. We have created the following information to help you determine the need for CALs. This guide is for reference purposes only and should not be used for purchasing decisions. Before purchasing you should visit the “How to Buy” section for each product and consult your local reseller.