If your Office Communications Server 2007 deployment includes Enterprise Voice, you will need to upgrade all existing Mediation Servers. Given the number and distribution of Mediation Servers that are possible in a large global deployment, you may want to stage migration over time, perhaps focusing on one location at a time. The following combinations of Office Communications Server 2007 and Office Communications Server 2007 R2 pools and Mediation Servers are supported:
- Office Communications Server 2007 pool with Office
Communications Server 2007, Mediation Server
- Office Communications Server 2007 pool with Office
Communications Server 2007 R2, Mediation Server
- Office Communications Server 2007 R2 pool with Office
Communications Server 2007, Mediation Server, with no support for
Outside Voice Control
- Office Communications Server 2007 R2 pool with Office
Communications Server 2007 R2, Mediation Server
 Important: |
|---|
| Care must be taken in deactivating a Mediation Server. If you
remove it from service without first taking precautionary steps,
you may drop calls. For instructions on how to properly deactivate
a Mediation Server, see
|
For larger implementations, a period of coexistence is expected with R2 Mediation Servers fully supporting users in legacy pools.
In This Section
The topics in the following list outline the steps to upgrade your Enterprise Voice deployment: