Office Communications Server 2007 R2 downloads, found at http://go.microsoft.com/fwlink/?LinkID=133654

Office Communications Server 2007 R2 Planning Guide, found at http://go.microsoft.com/fwlink/?LinkID=133725

Office Communications Server 2007 R2 Enterprise Voice Planning and Deployment Guide, found at http://go.microsoft.com/fwlink/?LinkID=133698

Office Communications Server 2007 R2 Deployment Guides, found at http://go.microsoft.com/fwlink/?LinkID=133729

Office Communications Server 2007 R2 Command Line Reference, found at http://technet.microsoft.com/en-us/library/bb894706.aspx

Office Communications Server 2007 R2 Active Directory Guide, found at http://go.microsoft.com/fwlink/?LinkID=133727