When a Communicator 2007 user calls a Conference Auto Attendant access number, the call always uses Mediation Server instead of going to the Conference Auto Attendant directly

Consider the following scenario:

• You create a Microsoft Office Communicator 2007 user in a Microsoft Office Communications Server 2007 enterprise pool.
• You configure a Conference Auto Attendant (CAA) access number on a Communications Server 2007 R2 server in the same forest.
• The Communicator 2007 user calls the CAA access number.

In this scenario, the call always uses Mediation Server instead of going to the CAA directly. During this process, you lose the identity of the Communicator 2007 user.

In Communications Server 2007 R2, the global configuration exists in the config container. The contact objects are not replicated to the Communications Server 2007 enterprise pool. For example, the CAA access numbers are not replicated to the Communications Server 2007 enterprise pool. Therefore, reverse number lookup does not resolve the CAA access numbers on the Communications Server 2007 enterprise pool.

To resolve this problem, install the update package for Communications Server 2007 that is dated November 2008. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: