Microsoft Office Communications Server topologies require some additional components in the organization’s infrastructure. The topics in this section describe these components and also identify certain components that are not supported.

If you choose to deploy Office Communications Server 2007 R2 by using the command line, some additional prerequisites need to be installed manually. For details, see the Command Line Reference documentation.
The supported versions itemized in this section refer to the minimum supported version.

This section describes the following environmental requirements: