U.S. Cellular Uses Narus' IP Platform as Competitive Edge; Announces

    Business Editors/High-Tech Writers
    CTIA Wireless 2005
    Booth #6925

    NEW ORLEANS--(BUSINESS WIRE)--March 14, 2005--U.S. Cellular Corporation (AMEX:USM) has deployed Narus' Carrier-Class IP Platform software to provide IP billing mediation for its easyedge(SM) data application services.
    Narus' IP Platform is operational in the U.S. Cellular network, providing volume and content-based billing mediation for the company's messaging and easyedge(SM) services. U.S. Cellular is using the solution for all data billing mediation across their customer base of more than 4.9 million subscribers in 148 markets in 25 states.
    "The flexibility and ease with which we can expand and add applications differentiates Narus from any point-solution competitors," said Mike Irizarry, executive vice president and CTO at U.S. Cellular. "The Narus IP Platform gives us a competitive advantage, allowing us to efficiently add applications that in turn allow us to provide more value to our customers."
    The Narus IP Platform provides a "total network view" of IP data from Layer 2 to Layer 7, across multiple networks. The Platform captures, analyzes and correlates traffic across the multiple networks, providing a normalized interface to multiple applications.
    "With Narus we can launch new applications based on the same installed platform and normalized data," said Irizarry. "That the Narus IP Platform is application and network agnostic was critical in our vendor selection."
    "We are pleased to be helping a market-leader like U.S. Cellular achieve its objectives with the use of our advanced visualization and billing mediation applications," said Greg Oslan, President and CEO, Narus. "The Narus IP Platform delivers on those requirements and assures U.S. Cellular a scalable solution to meet their future business needs."

    About U.S. Cellular Corporation

    Chicago-based U.S. Cellular Corporation (AMEX:USM) is a super-regional wireless company, serving more than 4.9 million customers in 148 markets in 25 states. With 2004 service revenues of $2.64 billion, U.S. Cellular maintains one of the industry's highest levels of customer satisfaction by emphasizing customer support, quality network coverage and comprehensive range of wireless products and services. The company is an active corporate citizen through charitable contributions, award-winning community relations programs and associate volunteer activities. For more information, visit www.uscellular.com.

    About Narus

    Narus provides a Carrier-Class IP Platform for the largest, most profitable networks in the world. The Narus IP Platform offers a "Total Network View" through the real-time collection and analysis of one packet to billions of packets across multiple networks at up to OC192 rates. The Narus IP Platform is used by Tier-1 Carriers to enable IP applications such as security, traffic and customer analysis, IP monitoring and billing. Narus is privately held and fully funded, backed by JP Morgan Partners, Mayfield, NeoCarta, Intel, Presidio Venture Partners, Sumisho Electronics and Walden Ventures. For more information, please visit www.narus.com.

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CONTACT: Narus, Inc. Jay Thomas, +1-650-230-9355 jthomas@narus.com or GolinHarris Jane Yedinak, +1-415-274-7919 jyedinak@golinharris.com or U.S. Cellular Jonathan S. Guerin, +1-773-399-4379 jonathan.guerin@uscellular.com

KEYWORD: CALIFORNIA LOUISIANA TRACK INDUSTRY KEYWORD: HARDWARE TELECOMMUNICATIONS NETWORKING INTERNET E-COMMERCE TRADESHOW PRODUCT SOURCE: Narus, Inc.

Copyright Business Wire 2005