Client Migration

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 Communicator 2007 will interoperate with Office Communications Server 2007 R2 servers, but only the Office Communications Server 2007 feature set will be available. In order to make the new functionality of Office Communications Server 2007 R2 available to your users, you must deploy Office Communicator 2007 R2.