Siemens to Supply Broadband Access Technology from Unisphere Networks; Deutsche Telekom Further Expands DSL Accesses for Fast Internet.

Business/Technology Editors

CHELMSFORD, Mass.--(BUSINESS WIRE)--March 26, 2001

Deutsche Telekom has placed an order with Siemens Information and Communication Networks (ICN) to supply and power-on broadband network access technology from the Siemens subsidiary Unisphere Networks, Inc. Unisphere's ERX Edge Routing Switch provides broadband access to the IP network and acts as a Broadband Remote Access Server (BRAS) for the product T-DSL. The BRAS is the Internet entry point via which users dial in to the network of their Service Provider, such as T-Online. The BRAS thus allows Fast Internet and IP VPN services to be provided cost-effectively for all T-DSL users. This order is already the biggest yet placed in Europe for BRAS technology. The Broadband Remote Access Servers are scheduled to go into operation by the end of March this year.

Unisphere's ERX will be employed as a broadband Remote Access Server (RAS) in Deutsche Telekom's IP network as the basis for its AAA services (Authentication, Authorization, Accounting) ensuring secure Internet access. ERX will also permit video streaming over the Internet because it routes the IP packets at delay-free "wire speed". The high data transmission rate is thanks to ERX's hardware-based ASIC concept which, for design reasons, operates much faster than software-based solutions.

Deutsche Telekom's decision in favor of the Next Generation BBRAS paves the way for the successful roll-out of IP-based services for private and business customers. Forward-thinking carriers like Deutsche Telekom are looking to offer more than just basic services; they want to offer their customers intelligent IP services across their networks while at the same time developing new revenue streams for themselves.

About ERX

Unisphere Networks' ERX edge router delivers the next-generation IP infrastructure enabling service providers to set up very fast Internet connections and provide value-added IP services for both businesses and consumers. The ERX product family routes IP packets at full wire speed at all interfaces, and is further characterized by carrier-class reliability and high port density. The ERX will also help tap new business potential with the support of IP Quality of Service (QoS), Virtual Private Networks (VPNs), and multi-protocol label switching (MPLS).

Unisphere's ERX family comprises two models - the high capacity ERX-1400 and the mid-range ERX-700. The ERX-1400 provides scalable capacity for tens of thousands of users - with a switching capacity of up to 40 Gigabit/s - making it ideal for service providers that operate high capacity points-of-presence (POPs). Its modular, 14-slot chassis features a wide range of interface options: T1/E1, T3/E3, OC3/STM-1 (channelized and unchannelized), OC12/STM-4, and Fast/Gigabit Ethernet. The ERX-700, designed for applications that require mid-range range capacity, has the same features and performance of the ERX-1400 in a more economical 7-slot package.

About Unisphere Networks

Unisphere Networks, Inc. is a provider of data and voice platforms for service providers. Unisphere's edge routing switch, service mediation switch, and network and services management solutions help service providers create and deliver innovative IP solutions. Unisphere Networks also offers service providers technical expertise and professional services in order to deploy and maintain next-generation networking solutions. For more information, please visit Unisphere Networks at www.unispherenetworks.com.

Unisphere is a trademark of Unisphere Networks, Inc. All other company and product names are trademarks or registered trademarks of their respective owners.

Siemens Information and Communication Networks Group (ICN) is a leading provider of integrated voice and data networks for enterprises, carriers and service providers. Its comprehensive portfolio comprises, in particular, IP-based convergence solutions, and a full range of products for broadband access, optical transport networks as well as the integration, services and applications business. The Siemens Group thus provides complete solutions from a single source for the infrastructure of the Next Generation Internet, a prerequesite for mobile business. In fiscal year 2000 (year-end 30 September) ICN posted sales of 11.4 billion euro, and earnings before interest and taxes (EBIT) of 692 million euro. ICN employs 53,000 people worldwide.

Further information about ICN is available at: http://www.ic.siemens.com/networks