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Microsoft Office Communications Server 2007 R2 Standard Edition is designed for use in small or medium-sized organizations or in organizations that do not require the performance, scalability, and high availability that Office Communications Server Enterprise Edition provides.

The topics in this section describe the steps necessary to deploy Office Communications Server Standard Edition. This section assumes that you have planned your deployment and prepared for the deployment process by reviewing the Office Communications Server 2007 R2 Planning and Architecturedocumentation.

If you plan to upgrade your deployment from Live Communications Server 2005 with Service Pack 1 (SP1) or from Office Communications Server 2007, additional considerations apply. For details, see the Supported Migration Paths and Coexistence Scenariostopic of the Supported Topologies and Infrastructure Requirements documentation.

Before you begin deploying Standard Edition, verify that your environment meets the software, hardware, audio/video infrastructure, and storage requirements by reviewing the following sections of the Supported Topologies and Infrastructure Requirements documentation. For information about Standard Edition prerequisites, see Office Communications Server Infrastructure Requirements. Optionally, verify support for your planned topology. For information about supported topologies in Office Communications Server 2007 R2, see Supported Topologies.

When you deploy Standard Edition, the following components are installed on a single physical computer:

• Microsoft SQL Server 2005 Express Edition with Service Pack 2 (SP2)
  
  
• Front End Server
  
  
• Web Conferencing Server
  
  
• A/V (Audio/Video) Conferencing Server
  
  
• Web Components Server
  
  
• Application Sharing Conferencing Server
  
  
• Four unified communications applications
  
  

Deployment tasks associated with the A/V and Web Conferencing Server or audio/video and Web conferencing features are optional for organizations that plan to support only instant messaging and presence.

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