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The following types of RDS Server Client Access Licenses are available:
-RDS Device CAL: Permits one device (used by any user) to use Remote Desktop Services functionality on any of your servers.
-RDS User CAL: Permits one user (using any device) to use Remote Desktop Services functionality on any of your servers.
-RDS External Connector: Permits multiple external users to access a single Remote Desktop server. If you have multiple servers, you need multiple external connectors in addition to any required Windows Server External Connectors.
You may choose to combine RDS Device CALs and RDS User CALs simultaneously with the server software. You may permanently reassign your device CAL from one device to another or your user CAL from one user to another. You may temporarily reassign your device CAL to a loaner device while the first device is out of service, or reassign your user CAL to a temporary worker while the worker is absent.
RDS Technologies Requiring RDS CALs:
Microsoft licensing policies for Windows Server Remote Desktop Services (including the components that are included in Windows Server 2008, Windows Server 2008 R2, and Windows Server 2012) require that, in addition to a Windows Server Client Access License, Microsoft Core CAL Suite, or Microsoft Enterprise CAL Suite, you must acquire a Windows Server 2012 RDS CAL for each user or device that directly or indirectly accesses the server software to interact with a remote graphical user interface (GUI) (using the Windows Server 2012 Remote Desktop Services functionality or other technology).
Remote Desktop Services functionality is defined as those features or services that are running when enabling the Remote Desktop Services role and/or role service(s) in Windows Server 2008, Windows Server 2008 R2, or Windows Server 2012. This includes but is not limited to Remote Desktop Gateway, RemoteApp network software, Remote Desktop Web Access, Remote Desktop Connection broker, Remote Desktop session host, Remote Desktop Virtualization host, and RemoteFX.
Note: No RDS CALs are required for up to two users to access instances of the server software for administration purposes.
Remote Desktop Services:
Microsoft Remote Desktop Services is a centralized desktop and application platform solution that uses desktop virtualization technologies to deliver and manage corporate desktops in a more flexible way. RDS reflects the expanded role in Windows Server 2012, which is that desktop or applications can run in the data center while users can access them from anywhere.
Software Assurance (SA) is an offering available with Microsoft Volume Licensing programs that helps you get the most from your software. Software Assurance is a comprehensive maintenance program that can help you gain control of your technology strategy, improve IT staff skills, decrease support spending, and effectively plan for new software deployments. With Software Assurance, you can access training and deployment resources that enable employees to work more efficiently than ever. You also acquire tomorrow's technology at today's prices and have the ability to spread payments annually instead of upfront (or in two-year payments for the MOB and MOV programs).
1. Newly released updates and upgrades of your software (Note: SA entitles you to the rights to the new software, but you will still need to purchase software media packs via the Microsoft Licensing Fulfillment [MLF] program.)
2. Home use rights for MS Office applications covered under SA.
3. For owners of Server products only -- access to TechNet Managed Newsgroups and TechNet Plus subscription media, ensuring that IT staff have resources available to address their technical issues
4. For customers with at least 5 server licenses and with all related client licenses also covered by SA -- Problem Resolution Support, which provides Web-based support for Standard Editions, and phone-based support for Enterprise Editions
5. Cold Server Backups - For each server license for which a customer has active Software Assurance, the customer has the right to install the same software on a "cold" backup server for use in disaster recovery.
Other tools include Corporate Error Reporting (CEP) to help you analyze problems and distribute fixes, Enterprise Source Licensing (1,500 desktops or more) that lets you access Microsoft Windows source code for internal development and support, and the Windows Preinstallation Environment (Windows PE) for speeding up and automating deployment.