This topology provides the benefit of limiting the need to extend the Active Directory schema to a single forest (the resource forest).
The following diagram illustrates a resource forest topology.
Figure 6. Resource forest topology
Installing Administrative Tools
In Office Communications Server 2007 R2, the Office Communications Server administrative tools are not installed by default. To install the administrative tools on a computer running Office Communications Server 2007 R2 or on another computer, such as a management console from which you want to centrally manage Office Communications Server 2007 R2 servers and users, you can use the Deployment Wizard to install the administrative tools, including Response Group Service and Communicator Web Access. For a description of each of these tools, see Administrative Consoles in the Planning and Architecture documentation.
Before installing the administrative tools, verify that all prerequisites have been met, including operating system requirements and installation of required updates. For details, see Administrative Tools Software Requirements in the Supported Topologies and Infrastructure Requirements documentation.