Client Access Licenses, CALs, Software Licensing

Client Access Licenses, CALs 

Client Access licenses are used for accessing the services of the servers in infrastructure, user can purchase a CAL, Client Access Licenses (CALs) for either users or devices.

A Device CAL is assigned to the device and allows multiple users to use that device.

A User CAL is assigned to the user and allows that user to use multiple devices.

 Standard and Enterprise CALs

Some server products offer different levels of functionality that can be exposed to users or devices, and there are CALs that correspond to this functionality. The core functionality offered by the server is linked to a Standard CAL.

If the extended functionality is utilized, and then the purchase of an Enterprise CAL is required in addition to the Standard CAL.

CAL Suites

It can be advantageous for users to buy their CALs in suites. The two CAL suites are Core CAL Suite and Enterprise CAL Suite, and contain the following Cals.

Windows Server Cal
Exchange Server Cal
Sharepoint Cal
Lync Server Cal
System Center Conf. Cal
Forefront Endpoint Protection

Per Processor Licensing

License for each processor used by the product in the physical servers. These licenses entitle ALL internal and external devices and users to connect to the server and so there is no requirement for CALs.

License for each processor used by the product in the physical servers. These licenses entitle ALL internal and external devices and users to connect to the server and so there is no requirement for CALs.

Management Licensing

End User can purchase a server license for the Management Server. Managed client devices require Client Management Licenses, and managed servers require either a Standard Server Management License (ML) if running basic workloads or an Enterprise Server Management License if running application workloads.