1. Unified. Simplified. Unified Communications Launch 2007

2. Unified. Simplified. Communication Overload Globally Distributed Customers and Teams Disconnected Communications Systems High Cost of Communications Communications In The Enterprise

3. Unified. Simplified. Transforming Business Models Vertically-integrated communications Horizontal software-driven communications Vendor Specific Multiple Vendors

4. Unified. Simplified. Software-Centric Communications Software Foundation More Innovation More Choice Reduced Cost More Productivity

5. Unified. Simplified.

6. Microsoft Unified Communications Instant Messaging Application Integration Team Workspaces Across Networks Across Devices E-Mail/ Calendaring Conferencing VoIP Identity and Presence Streamlined Communications Operational Efficiency Built-in Protection Future-Ready Software Foundation

7. Unified. Simplified.

8. © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.