After configuring the Mediation Server, use the following procedure to start the server.
To start Mediation Server
On a Front End Server, click Start, point to Programs, point to Administrative Tools, and then click Office Communications Server 2007.
Expand the Mediation Serversnode.
Right-click the appropriate Mediation Server, and then click Start.
On the Mediation Server, open the Windows Startmenu, click Run, type services.msc, and then verify that Office Communications Server Mediationappears in the list of services.