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The difference between standard and premium is that premium includes EVERYTHING that standard has AND provides license to access the SQL server.<br />
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That said:<br />
DISCLAIMER: Licensing advice offered here is a &quot;best effort&quot; and based on the understanding of the respondents. Licenses can change and we may not be aware of these changes or may misunderstand them. Further, licenses can differ by country and/or region and what we understand to be true in our region could be false in your region. &quot;they told me on Experts-Exchange&quot; will not be a valid defense in a software audit. &nbsp;All licensing questions should be confirmed with the appropriate licensing authority (the maker of the software/issuer of the license). &nbsp;
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The difference between standard and premium is that premium includes EVERYTHING that standard has AND provides license to access the SQL server.

That said:
DISCLAIMER: Licensing advice offered here is a "best effort" and based on the understanding of the respondents. Licenses can change and we may not be aware of these changes or may misunderstand them. Further, licenses can differ by country and/or region and what we understand to be true in our region could be false in your region. "they told me on Experts-Exchange" will not be a valid defense in a software audit.  All licensing questions should be confirmed with the appropriate licensing authority (the maker of the software/issuer of the license).  

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Thnk you so much for clearing that up for me.
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Thnk you so much for clearing that up for me.

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@leew: your post was true for 2008, but for 2011 premium CALs are additive, not inclusive, because of the change to the add-on model and SBSe.
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@leew: your post was true for 2008, but for 2011 premium CALs are additive, not inclusive, because of the change to the add-on model and SBSe.

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You're right... lot on my mind, forgot that detail... 
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You're right... lot on my mind, forgot that detail...

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I have been asking around and cannot get a clear answer on this.<br />
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Do I need Standard CALS and Premium CALS for clients that are using SQL based applications on an SBS 2011 network or just the premium CALs?
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I have been asking around and cannot get a clear answer on this.

Do I need Standard CALS and Premium CALS for clients that are using SQL based applications on an SBS 2011 network or just the premium CALs?

2011 SBS Premium addon CALS

Small Business Server (SBS) is a line of server operating systems targeted at small businesses by bundling the operating system with a number of other Microsoft products that would normally need to be purchased or licensed separately. The most notable inclusions are Exchange, SQL Server, SharePoint and ISA/TMG (Microsoft's firewall and proxy server).