The topics in this section guide you through the process of migrating from Microsoft® Office Communications Server 2007 to Microsoft Office Communications Server 2007 R2. If you intend for your Office Communications Server 2007 R2 deployment to coexist with a Communications Server 2007 deployment, this guide also includes some essential information for operating such a mixed environment.

This guide provides information specific to upgrading your existing deployment; it does not explain how to change your existing topology. This guide does not cover the implementation of new features. When a detailed procedure is documented elsewhere, this guide directs you to the appropriate document or document section.

If you intend to deploy server roles that are new to Microsoft Office Communications Server 2007 R2, we recommend that you first upgrade your existing deployment as described in this guide, and then deploy the new server roles as explained in the planning and deployment documentation.

Migration is one part of deploying your Office Communications Server 2007 R2 environment. You should be aware of how migration fits in the overall planning and deployment process. We also recommend that you read these migration topics in full before you start so that you know everything that you will need to do during migration.

In This Section

See Also

Other Resources

Planning and Architecture
Reference Topology
Supported Server Role Collocation