If you remove a Mediation Server from service without first taking appropriate precautionary steps, you can significantly impact the availability of service, including causing active calls to be dropped. Before deactivating a Mediation Server, do the following, as appropriate:

Deactivating a Mediation Server can result in the loss of data and settings. Before you start the deactivation procedure in this section, ensure that all data and settings have been backed up and appropriate restoration procedures are in place. For details about backing up data and settings, see Backup and Restoration in the Operations documentation at http://go.microsoft.com/fwlink/?LinkID=132106 .

To deactivate a Mediation Server

  1. Log on to the Mediation Server as a member of the RTCUniversalServerAdmins group.

  2. Open Computer Management.

  3. Expand Services and Applications, right-click Office Communications Server 2007 R2, and then click Deactivate Mediation Server.

  4. In the Deactivation Wizard, review the information on each page, and then click Next.

  5. When the wizard is complete, select the View the log when you click Finishcheck box, and then click Finish.

  6. Use the log file to verify that the deactivation status in the Execution Resultcolumn (including the status of each deactivation task) for a server role is Success.

    The deactivation status that is shown in the log must indicate success before you deactivate any other server role or take other Office Communications Server actions. If any task does not complete successfully, resolve the problem and run the Deactivation Wizard again to complete the deactivation.