OCS documentation and deployment guides
Use this page to find documentation and other content to help you deploy and operate Office Communications Server 2007 Standard/Enterprise, Microsoft Office Communicator 2007, Microsoft Office Live Meeting 2007 and Microsoft Office Communicator Web Access (2007 release).
This page also has great documentation on planning for and deploying VoIP/video with OCS.
https://technet.microsoft.com/en-us/library/bb676082.aspx
Technorati Tags: ocs, doco, communicator, livemeeting