T-Mobile HotSpot Continues Industry Leadership with Largest Deployment of 802.1x Security Standard for Wi-Fi

October 11, 2003

Enhanced Security Reliability Breaks Down Barriers for Mobile Professionals

Bellevue, Wash. — Oct. 12, 2003

Already known as the leader for reliable and secure Wi-Fi choices for business professionals, T-Mobile USA, Inc. today announced it will give T-Mobile HotSpot customers an even greater level of security by deploying the 802.1x security standard across its entire carrier-class Wi-Fi network, the largest in the United States.

T-Mobile has always offered customers security enhancements, such as the ability to use corporate VPNs or personal firewalls to minimize concerns associated with an ‘open air’ Internet interface. T-Mobile’s next step in enhancing security is the deployment of the 802.1x security standard, which when launched, will provide the highest degree of Wi-Fi security commercially available in the market today. The 802.1x security standard offers protection to customers against intruders who try to intercept or ‘hijack’ information in route between the network and the customers’ laptops or PDAs. T-Mobile HotSpot is currently testing 802.1x at a selection of its 3,000 locations and will aggressively rollout the solution across its network by second quarter 2004 -- resulting in the largest public ‘hotspot’ deployment of the 802.1x standard in the world for commercial networks.

“Enabling enhanced security is a customer focused decision,” said Joe Sims, vice president and general manager of T-Mobile HotSpot. “We are already the obvious choice for mobile professionals as 88 percent of T-Mobile HotSpot usage is for business purposes. 802.1x is another example of how we deliver on our Get More® promise to meet enterprise customers’ needs for secure and reliable wireless broadband service today.”

Unlike other Wi-Fi providers that have an inconsistent or fragmented network topology, T-Mobile is able to leverage its nationwide ATM backbone infrastructure -- the same infrastructure used for its wide area GSM/GPRS network -- to service each of its 3,000 HotSpot locations across the country. This allows T-Mobile to continuously monitor the performance of each HotSpot from a national operations center to ensure customers get optimal performance and reliability, far beyond that offered by other Wi-Fi operators.

As part of this industry-leading 802.1x deployment effort, T-Mobile USA is collaborating with Microsoft in fielding its Wireless Provision Services (WPS) product, announced today at ITU Telecom World 2003 in Geneva. WPS allows Windows XP users to easily detect and connect to T-Mobile HotSpot networks with automatic authentication and encryption based on the 802.1x standard.

“By working with T-Mobile USA, Microsoft is teaming with a service provider that shares our commitment to making the mobile computing experience more secure and reliable,” said Jawad Khaki, corporate vice president of Windows Networking and Communication at Microsoft. “Microsoft Wireless Provisioning Services in Windows Server 2003 and Windows XP, in combination with T-Mobile’s Wi-Fi network, will further enhance the experience for both consumers and business users.”

Upon commercial availability, T-Mobile HotSpot customers with 802.1x enabled laptops and PDAs, such as Windows XP with WPS, will be able to enjoy the benefits of the enhanced security standard. There are also a number of third party software applications that allow customers to utilize the 802.1x standard. Customers who prefer not to engage the enhanced security mechanism can use the T-Mobile HotSpot service through their regular Web browser interface. Customers will continue to have the option to utilize VPNs and personal firewalls.

Lindsay Morio

T-Mobile USA Media Relations

425-383-4002

mediarelations@t-mobile.com

About T-Mobile USA, Inc.

Based in Bellevue, Wash., T-Mobile USA, Inc. is the U.S. wireless operation of Deutsche Telekom AG. By the end of the first quarter of 2010, approximately 150 million mobile customers were served by the mobile communication segments of the Deutsche Telekom group - 33.7 million by T-Mobile USA - all via a common technology platform based on GSM and UMTS, the world's most widely used digital wireless standards. T-Mobile USA's innovative wireless products and services help empower people to connect to those who matter most. Multiple independent research studies continue to rank T-Mobile among the highest in numerous regions throughout the U.S. in wireless customer care and call quality. For more information, please visit http://www.T-Mobile.com. T-Mobile is a federally registered trademark of Deutsche Telekom AG.