Review the following deployment models:
•
Deployment Models for Small Businesses
•Deployment Models for Medium Businesses
Identify System Components
For a brief description of all the components that are available with Cisco Unified Communications System Release 7.0 (1) for small and medium business, refer to the Cisco Unified Communications 500 Series Solution Components Overview and Cisco Unified Communications Manager Express Solution Solution Component Overview.
See the Install and Configure System Components topics in the Implement tab for links to information that describe components that are specific to the IP telephony system.
Review Release Matrix
The Release Matrix (which includes the Software Version Matrix 
and the Firmware Version Matrix ) lists all the components and their versions for a particular release. This is the recommended set of components and specific software versions that have been tested and verified for interoperability within a specific system release.