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Microsoft Office Communications Server 2007 is the first Microsoft product to combine enterprise instant messaging (IM), presence, Web conferencing, and software-powered VoIP.

Pricing and Licensing
Learn about licensing Office Communications Server 2007 R2, including answers to frequently asked questions, an overview of Client Access Licenses (CALs), Volume Licensing programs, new and updated features, and more.
Purchasing Options
Discover the various ways you can acquire Office Communications Server 2007 R2.

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