Siemens Enterprise Communications and T-Systems now speak with one voice

Two premier providers of Unified Communications solutions, Siemens Enterprise Communications GmbH & Co. KG (SEN) and T-Systems have agreed to a global agreement to provide key international customers greater cost efficiency with standardized products, best-in-class capabilities, quicker technology rollout and worldwide service.

The demand for integration of all communications media into a uniform application environment such as Unified Communications (UC) is growing fast. Today’s complex data and network environments are typically made up of a host of proprietary and specialized components from a variety of vendors since the individual vendors usually do not offer all the elements needed for a complete UC solution. This new agreement will let Siemens Enterprise Communications and T-Systems simplify the migration to this technology for their customers.

"In addition to software, data center services and storage capacity, we are now also offering more and more customers Voice as a Service via the Internet," said Reinhard Clemens, member of the Board of Management of Deutsche Telekom and CEO of T-Systems. "In SEN we have found a reliable partner so that our customers can leave the age of proprietary telephone systems and get the highest level of service quality in telephony with Internet-based technologies."

"T-Systems is leveraging the integration of our Open Communications solutions to the benefit of the enterprise customers and can thus offer them greater functionality and maximum flexibility while helping them reduce costs," commented Hamid Akhavan, CEO of Siemens Enterprise Communications. "While T-Systems provides the network and data centers, SEN supplies the layers needed for the seamless integration of voice and Unified Communications in the data network environment. The partnership with T-Systems

is one more confirmation of our market-leading solutions for voice and UC and of our joint commitment to helping our customers achieve their current business goals and preparing them for the challenges of tomorrow."

Many T-Systems customers are already using Unified Communications solutions from Siemens Enterprise Communications. The most recent joint win is the major order from the energy powerhouse BP.

About Deutsche Telekom AG

Deutsche Telekom is one of the world’s leading integrated telecommunications companies with over 151 million mobile customers, over 38 million fixed-network lines and more than 15 million broadband lines. The Group provides products and services for the fixed network, mobile communications, the Internet and IPTV for consumers, and ICT solutions for business customers and corporate customers. Deutsche Telekom is present in over 50 countries and has around 260,000 employees worldwide. The Group generated revenues of EUR 64.6 billion in the 2009 financial year – almost half of it outside Germany. (As at December 31, 2009)

About T-Systems

Drawing on a global infrastructure of data centers and networks, T-Systems operates information and communication technology (ICT) systems for multinational corporations and public sector institutions. T-Systems provides integrated solutions for the networked future of business and society. The company's some 45,300 employees combine industry expertise and ICT innovations to add significant value to customers’ core business all over the world. T-Systems generated revenue of around EUR 8.8 billion in the 2009 financial year.

About Siemens Enterprise Communications

Siemens Enterprise Communications is a premier provider of end-to-end enterprise communicationssolutions that use open, standards-based architectures to unify communications and business applications for a seamless collaboration experience. This award-winning "Open Communications" approach enables organizations to improve productivity and reduce costs through easy-to-deploy solutions that work within existing IT environments, delivering operational efficiencies. It is the foundation for the company's OpenPath commitment that enables customers to mitigate risk and cost-effectively adopt unified communications. This promise is underwritten through our OpenScale service portfolio, which includes international, managed and outsource capability. Siemens Enterprise Communications is owned by a joint venture of The Gores Group and Siemens AG. The joint venture also encompasses Enterasys Networks, which provides network infrastructure and security systems, delivering a perfect basis for joint communications solutions. For more information about Siemens Enterprise Communications or Enterasys, please visit www.siemens-enterprise.com/open or www.enterasys.com. Siemens Enterprise Communications & Co K.G. is a trademark licensee of Siemens AG.

Media Contact:

T-Systems Singapore Pte Ltd

Media Relations

Name: Alexis Lynn Oh

Phone: +65 6510 6103

E-mail: alexis-lynn.oh@t-systems.com

Further information for journalists: www.telekom.com/media