1. Page 1 Copyright © Siemens Enterprise Communications GmbH & Co. KG 2008. All rights reserved. Siemens Enterprise Communications GmbH & Co. KG is a Trademark Licensee of Siemens AG At the Intersection of UC and The Cloud: Is UC the Killer Cloud Application? Siemens Enterprise Communications Adrian Brookes Vice President UC Technical Vision & Strategy Office of the CTO

2. Page 2 Copyright © Siemens Enterprise Communications GmbH & Co. KG 2008. All rights reserved. Siemens Enterprise Communications GmbH & Co. KG is a Trademark Licensee of Siemens AG What is driving the requirements? User expectations Use of commercial clients has shown the hunger for information iPhone/Nexus One Palm Pre netbooks People cannot exist without our creature comforts People want things now and not in 6 months Users do not tolerate delay Millennial users ‘expect’ Complexity Technological Everything is far more complex and needs a great deal of thought and design to ensure a satisfactory deployment. Content is now created for ease of use, mobility, and simple operation Geographical Companies now operate wherever the resources are, not where they are. 6

3. Page 3 Copyright © Siemens Enterprise Communications GmbH & Co. KG 2008. All rights reserved. Siemens Enterprise Communications GmbH & Co. KG is a Trademark Licensee of Siemens AG What is available to the company? Business demands have changed Flexible Total Coverage 24/7 Ubiquitous Pay for what we use Financials are now even harder The recession has ensured that new models have to be explored Hybrid networking is now the new thing Everything from IP dial-tone to true UC Complex choice for end users to choose from.

4. Page 4 Copyright © Siemens Enterprise Communications GmbH & Co. KG 2008. All rights reserved. Siemens Enterprise Communications GmbH & Co. KG is a Trademark Licensee of Siemens AG Cloud Economics….why is it compelling? Numbers around CC are always impressive 80% fortune companies 1000 will pay to use cloud computing services and 30% will pay for infrastructure. Gartner 33% of IT business will be in Cloud Computing Gartner Market : 42 billon IDC 95 billion Merrill Lynch 4 At this moment, the 5 major search engines together have 2.000.000 computers Microsoft data centre in Chicago: 610.000 servers 2012 2011

5. Page 5 Copyright © Siemens Enterprise Communications GmbH & Co. KG 2008. All rights reserved. Siemens Enterprise Communications GmbH & Co. KG is a Trademark Licensee of Siemens AG Hybrid/Cloud Based UC Strategy Demonstrate the adaptability of communications software to align with the principles of Next Generation Data Center Concepts Adopt to the fullest extent possible virtualisation and support of multiple Hyper-Visors where possible Focus on adapting software to be managed in a virtual environment instead of building our own. Understand that multiple cloud models will exist (public, private, hybrid) and that this has implications for communications software especially the real time components Utilise the Cloud as yet another route to market with the main benefit of reducing costs and complexity for customer/partners Amazon provides a basis for other cloud deployments Start out simple but move to more complex deployments (CEBP, federation) keeping the complexity in the cloud and deliver more value to the customer Make this offering accessible for both customers and partners (should not cause channel conflicts) View the Cloud as an Innovation Engine Accelerate the implementation of OpenSOA SDK to the cloud Leverage the core software for further innovation such as disaster recovery service, Federation Service, ENUM Services, and keep adding capabilities to drive this innovation. Place no limitations on the core software assets (let customers/partners innovate)

6. Page 6 Copyright © Siemens Enterprise Communications GmbH & Co. KG 2008. All rights reserved. Siemens Enterprise Communications GmbH & Co. KG is a Trademark Licensee of Siemens AG Future Innovations For UC in the Cloud CEBP/CBPA From the Cloud Rather than building your own Federation functions with other companies. Leverage a service from the Cloud Signing up for a federation service could provide instant access to a large number of potential partners/customers Federated Services Combined instances of communications software with Line of Business Apps delivered as a service. Disaster Recovery Services Provided as a service or create your own. Port your subscriber database to the cloud when internal network issues exist. The Clouds The Limit There is little that cant be delivered from the cloud Mobile computing services Smartgrid services Intelligent Data mining on a massive scale Page 6

7. Page 7 Copyright © Siemens Enterprise Communications GmbH & Co. KG 2008. All rights reserved. Siemens Enterprise Communications GmbH & Co. KG is a Trademark Licensee of Siemens AG Make the change today! You can start right now! Copyright © 2008 Siemens Enterprise Communications GmbH & Co. KG Siemens Enterprise Communications GmbH & Co. KG is a Trademark Licensee of Siemens AG SIEMENS Adrian Brookes Vice President UC Technical Vision & Strategy Office of the CTO Siemens Enterprise Communications Postal Address: Siemens Enterprise Communications Brickhill Street, Willen Lake Milton Keynes MK15 0DJ Unified number : +44 (0) 1908 855928 E-Mail: adrian.brookes@siemens-enterprise.comadrian.brookes@siemens-enterprise.com