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In addition, an External Connector EC license is offered for some products as an optional alternative to address specific customer scenarios. This overview is for reference purposes only. Before purchasing, you should visit the "How to Buy" section for each product and consult your Microsoft representative or local reseller regarding your specific licensing needs. With the User CAL, you purchase a CAL for every user who accesses the server to use services such as file storage or printing, regardless of the number of devices they use for that access.
Purchasing a User CAL might make more sense if your company's employees need to have roaming access to the corporate network by using multiple devices, or from unknown devices, or if you simply have more devices than users in your organization. Device CALs. With a Device CAL, you purchase a CAL for every device that accesses your server, regardless of the number of users who use that device to access the server.
Device CALs may make more economic and administrative sense if your company has workers who share devices, for example, on different work shifts. External Connectors. If you want external users—such as business partners, external contractors, or customers—to be able to access your network, you have two licensing options:. External Connector licensing. An EC license assigned to a server permits access by any number of external users, as long as that access is for the benefit of the licensee and not the external user.
Each physical server that external users access requires only one EC license regardless of the number of software instances running. An "instance" is an installed copy of software. The right to run instances of the server software is licensed separately; the EC, like the CAL, simply permits access. Under the Per Core model, when the server software is running in the physical OSE, you must license all physical cores on the server.
To determine the number of core licenses you need, count the total number of physical cores for each processor on the server, and then multiply that number by the appropriate core factor.
You do not need to purchase additional CALs. Community Bot 1. MadBoy MadBoy 3, 13 13 gold badges 60 60 silver badges 92 92 bronze badges. Add a comment. Active Oldest Votes. Improve this answer. The Overflow Blog. Podcast Helping communities build their own LTE networks.
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