Before you proceed with installing Office Communications Server 2007 R2, Edge Server, your perimeter network must be configured to support it.

To prepare the perimeter network, do the following

If your plan is to continue to support your existing Edge Servers for your Office Communications Server 2007 deployment and to deploy Office Communications Server 2007 R2, Edge Server, for the new pools, you will need to prepare a new infrastructure before you install the new Edge Server.

To prepare a new infrastructure for Office Communications Server 2007, Edge Server, see Set Up the Infrastructure for Edge Serversin the Deploying Edge Servers for External User Access documentation.