Client Sign-In, Discovery, and Presence
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.
This section describes how clients determine the Office Communications Server 2007 R2 server or pool they should sign in to and the processes that they use for signing in.
This section includes the following topics: