This document discusses Microsoft's cloud-based communications solutions, including Communications Online and Office Live Meeting. It describes the key capabilities available today, such as instant messaging, presence, and online meetings. It also outlines new features and capabilities that will be introduced in the next version, including an improved unified user experience across IM, calling, and meetings. Finally, it discusses deployment options for organizations, whether using Communications Online fully in the cloud or with an on-premises Communications Server deployment for full enterprise voice functionality.