Solution Reference Network Design (SRND) documents provide guidelines, recommendations, and best practices for implementing enterprise network solutions. The following SRNDs are recommended for designing Cisco Unified Communications systems:
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Cisco Unified Communications SRND Based on Cisco Unified CallManager 5.0 
•Cisco Unified Communications SRND Based on Cisco Unified CallManager 4.x
•Enterprise QoS SRND, Version 3.3, November 2005 (right-click to download PDF)
•Cisco Unified Contact Center Enterprise SRND, Releases 7.0 and 7.1
Additional SRND resources are available at the following URL.
Solution Expert Tool
Solution Expert is a web-based tool that assists in the design, configuration, quoting, and ordering of Unified Communications products. Solution Expert is available for Cisco sales and partner systems engineers who have Unified Communications specializations.
With the Solution Expert tool, users can generate a recommended solution based on their requirements. Users can modify the recommended configuration if desired. Solution Expert validates any changes when it presents the new solution. Solution Expert also generates a bill of materials with list pricing, a Visio diagram, and other design documentation. To access Solution Expert, go to the following URL. For an overview of how to use the tool, see the introductory PDF on the home page.
For more ordering information, see the Order Equipment task on the Implement tab.