User Experience during Phase 3 of 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.

Users homed on the legacy system will not see any changes. Although the new Office Communications Server 2007 R2 components support the legacy client, the new client features are not available until the new Office Communications Server 2007 R2 client is deployed to those users who are homed on the Office Communications Server 2007 R2 pool.