The Cisco MCS 7825-H3 is now obsolete (past End-of-Life and End-of-Support status).
End-of-Sale Date: 2011-03-01
End-of-Support Date: 2016-03-01
Cisco's End-of-Life Policy
You can view a listing of available Cisco 7800 Series Media Convergence Servers offerings that best meet your specific needs
If you want support information for the Cisco MCS 7825-H3 documentation, it may be available through Cisco.com Search or in the Cisco Community