Microsoft Office Communications Server 2007 R2 Enterprise
Edition requires a database server running SQL Server 2005 with SP2
or SQL 2008. Additionally, Office Communications Server 2007 R2
requires a SQL Server host for Archiving and Monitoring. For
details on these tasks, see
For details about using Office Communications Server 2007 R2
Enterprise Edition, see the
When you deploy Office Communications Server 2007 R2 Standard
Edition, you install SQL Server Express by default. For details
about Standard Edition, see the