Architecture of Office Communications Server 2007

Microsoft Office Communications Server 2007 and Microsoft Office Communications Server 2007 R2 will reach end of support on January 9, 2018. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.

Office Communications Server 2007 extends the architecture of Live Communications Server 2005 to include components that support VoIP and conferencing. This section discusses the following architectural features:

• Pool Configurations

• Conferencing Components on the Front End Server

• Perimeter Network Configuration for IM and Conferencing

• Call Flows Among Conference Components

• VoIP Components

• VoIP Configuration

• Conference Data Storage

• Protocols Used in Office Communications Server 2007

Figure 6 illustrates a generic Office Communications Server topology, including the new VoIP and conferencing components.

Figure 6 . Office Communications Server 2007 reference architecture