Step 1. Determine Key Planning Considerations

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.

Microsoft Office Communications Server 2007 is the first Microsoft product to combine enterprise-ready IM (instant messaging), presence, and conferencing in a single offering. Built on Microsoft Office Live Communications Server 2005, Office Communications Server adds more capabilities to the core features of IM and presence, and provides additional functionality of on-premise Web conferencing, multimedia capabilities, and Enterprise Voice.

In initial planning phase, several key decision factors will affect how you choose to deploy Office Communications Server 2007 in your organization. Decide what features of Office Communications Server you want to enable within your organization and evaluate your organizations particular requirements.