Allen Telecom's Geometrix Wireless Location Solution Provides Platform for Carriers to Rapidly Launch Market-Wide Value-Added Services.

Business Editors/Hi-Tech Writers

HERNDON, Va.--(BUSINESS WIRE)--March 31, 2000

System Eliminates Need for Handset Modifications or Replacements,

Allowing Accelerated Market Entry and Broad Market Base to Include

All Wireless Subscribers

Geometrix(TM), the wireless location system developed by Allen Telecom Inc.'s (NYSE:ALN) Grayson Wireless division, allows wireless service providers to cost-effectively accelerate the availability of innovative location-sensitive value-added services inclusively to all existing wireless subscribers.

Such services might include motorist assistance, personalized traffic information, route guidance, door-to-door instructions, and enhanced 411. Geometrix' sophisticated network-based location technology works with existing handsets, extending their utility and eliminating the need to modify or replace them. Geometrix is available now for commercial application.

Geometrix, which meets or exceeds all Federal Communications Commission (FCC) E911 Phase II accuracy and implementation requirements, can also provide highly accurate subscriber location information for location-sensitive value-added services.

Besides avoiding the cost and risk of customer handset modifications or replacements, Geometrix does not interfere in wireless network operations, does not use wireless network bandwidth or other valuable resources, and neither increases radio channel overhead nor depletes handset battery reserves.

"Customer invoked location-sensitive value-added services could soon provide carriers with a significant new revenue stream, and Geometrix is the most cost-effective, rapidly deployable, and flexible location determining solution for service providers seeking to participate in this market," said George Marble, vice president of location services for Allen Telecom's Grayson Wireless division. "Several proposed location determining methods require carriers or customers to replace or modify their current handsets. Some increase overhead use of a wireless network's most valuable commodity, its radio frequency bandwidth, and even increase handset battery use in the process, while producing no compensatory revenue. Others require redundant equipment at wireless network base stations.

"Because Geometrix was approached from the outset as a complete business solution, it was designed to avoid these problems and to seamlessly blend with existing wireless operations," said Marble. "Consequently, it can provide immediate, reliable E911 Phase II coverage and can provide the base vehicle for location-sensitive value-added services without any subscriber or carrier inconvenience or resource usage. Using Geometrix, wireless carriers can offer the new value-added services to all of their customers, rather than only to those who have obtained new, specialized handsets."

The unsurpassed flexibility, capabilities, and readiness of the Geometrix Wireless Location Solution was shown publicly in a live demonstration at the CTIA Wireless 2000 exposition in February of this year.

Allen Telecom is the only vendor of wireless location systems to prove by means of a live demonstration in public that its location system can, using non-redundant common equipment in a real-world environment, simultaneously locate analog and digital cellular handsets.

Unlike many E911 Phase II systems, Geometrix' common equipment can support both cellular and PCS frequency bands and multiple air interfaces simultaneously--including AMPS, TDMA (IS-136), CDMA (IS-95), and iDEN systems--without duplicated location equipment.

Geometrix can locate and provide rapid location updates for stationary and in-motion callers in all urban, suburban and rural environments. Because of this, Geometrix is uniquely positioned to serve as a shared system supplying locations for E911 and value-added services to multiple wireless carriers.

Geometrix shared arrangements, such as consortiums and service bureaus, protect proprietary network and customer information and services because Geometrix does not require customer information to operate and because the system can be partitioned so that only a customer's service provider has access to its own proprietary service information.

Geometrix uses small Wireless Location Sensors at base stations that precisely measure voice channel radio signals from conventional handsets, which the Geometrix system has been specifically instructed to locate in response to E911 or value-added service calls.

A Geolocation Control System located at a centralized mobile switching center manages the location system, obtains and refines data from the Wireless Location Sensors, performs location determination calculations, and reports location coordinates to the wireless carrier for forwarding to Public Safety Answering Points (E911 calls) or to value-added service providing facilities.

Should one or more wireless service providers sharing a Geometrix system wish to expand E911 and value-added location service coverage areas, Wireless Location Sensors can be placed in additional base stations without requiring changes to the entire system.

Geometrix allows carriers to enjoy the economies of a shared solution while maintaining the autonomy and protection attributes of individual systems.

"Wireless service providers are in the business of cost-effectively generating revenue," said Marble. "Geometrix makes the best business sense for both individual carriers and groups of carriers who wish to increase their profitability by providing location-sensitive value-added services as rapidly as possible to the largest possible customer base."

Allen Telecom's Grayson Wireless division supplies state-of-the-art measurement and signal processing systems for testing wireless networks (cellular, PCS, DCS, SMR and paging) and geolocation equipment.

Its Measurement Systems product line includes solutions for all phases of network deployment and operations (design/verification/optimization/maintenance/benchmarking), as well as specialized applications, such as interference detection.

Grayson's Geolocation System, Geometrix , is a scalable, cost-effective solution for location determination that can be tailored for a wide variety of value-added location services, including wireless Enhanced 911.

Allen Telecom Inc. (http://www.allentele.com) is a leading supplier of wireless equipment to the global telecommunications infrastructure market. More than 2,000 employees share in the growth of Allen Telecom Inc.'s eight divisions worldwide.

These divisions represent more than 100 collective years of experience in the radio frequency industry supported by over 200 product patents and trademarks. FOREM supplies sophisticated filters, duplexers, combiners, amplifiers and microwave radios to an array of OEM customers.

MIKOM focuses on providing repeaters, in-building systems and other products that enhance both the coverage and the capacity of a wireless system. Tekmar Sistemi provides integrated low power fiber optic and cable distributed antenna systems for indoor coverage systems.

Decibel Products and Antenna Specialists manufacture land based and mobile antennas in frequency bands that cover all of the traditional wireless networks. Grayson Wireless supplies state-of-the-art measurement and signal processing systems for testing the overall performance of a wireless network and providing geolocation services.

Comsearch offers engineering, mobile satellite and consulting services for wireless operators. Allen Telecom's divisions are committed to quality manufacturing, continued process improvement, innovative design, and reliable support. All of the company's high volume manufacturing facilities, from Asia to Europe to North America, are ISO certified.

Statements included in this press release, which are not historical in nature, are forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995.

Forward-looking statements regarding the Company's future performance and financial results are subject to certain risks and uncertainties that could cause actual results to differ materially from those set forth in the forward-looking statements.

Allen Telecom Inc.'s Annual Report on Form 10-K and Quarterly Reports on Form 10-Q contain certain detailed factors that could cause the Company's actual results to materially differ from forward-looking statements made by the Company, including, among others, the costs and timetable for new product development, the health and economic stability of the world and national markets, the uncertain level of purchases by current and prospective customers of the Company's products and services, the impact of competitive products and pricing, the future utilization of the Company's tax loss carry forwards, the impact of U.S. and foreign government legislative/regulatory actions, including, for example, the scope and timing of E911 geolocation requirements and spectrum availability for new wireless applications, the financing availability for geolocation projects, and other transactions.

Press should contact Dennis Smith at 301/608-2220 or Vickie Warfield Thompson at 703/787-7944 x125.

For more information about Geometrix, visit http://www.geometrix911.com.