Allen Telecom Announces General Availability of Geometrix, a Network-Based E9-1-1 Wireless Location Solution.

Business Editors/Hi-Tech Writers

HERNDON, Va.--(BUSINESS WIRE)--Jan. 17, 2000

Geometrix is an Unobtrusive, Reliable, and Flexible System That Can Be

Purchased as a Turnkey Solution or Provided as a Service Bureau

Offering

Allen Telecom Inc.'s (NYSE:ALN) Grayson Wireless division today announced the availability of Geometrix(TM), a wireless network-based customer position determining equipment solution for cellular and PCS telecommunications service providers that meets or exceeds all Federal Communications Commission (FCC) E9-1-1 Phase II accuracy and capacity requirements.

Geometrix is available as a turnkey solution or as a service bureau offering.

Allen Telecom, with more than 50 years of industry experience, combines one of the most complete product lines in the wireless telecommunications industry with the best service and support available to the global wireless market.

"Our goal in offering Geometrix is to give wireless service providers significant cost and implementation flexibility in meeting the time-sensitive FCC E9-1-1 Phase II requirements," said Joseph P. Kennedy, vice president of business development for Allen Telecom's Grayson Wireless division. "We want to make this process unobtrusive for wireless service providers and their subscribers, and straight forward for public safety officials."

Geometrix, an independent overlay in wireless network base stations and mobile switching centers, is installed without interruptions or delays in service. Furthermore, the system operates transparently to wireless service providers and their customers. To ease integration with existing E9-1-1 operations, Geometrix interfaces seamlessly with industry-standard E9-1-1 Phase I technology.

The Geometrix system is deployed using Time Difference of Arrival (TDOA) or a combination of TDOA and Angle of Arrival (AOA) techniques to provide highly reliable, accurate, and rapid location of wireless E9-1-1 calls in urban, suburban and rural operating environments. Other flexible features include:

-- Demonstrated capability to support a wide variety of cellular and

PCS frequencies and air interfaces, including AMPS, TDMA 

(IS-136), CDMA (IS-95), and iDEN systems.

-- Ability to support multiple frequency bands and air interfaces

simultaneously without duplicated equipment at cell sites. This

provides substantial savings for dual-mode wireless carriers and

allows multiple service providers to share a common Geometrix

system to meet the FCC's E9-1-1 Phase II requirement.

-- Scalable and upgradeable technology, allowing carriers to expand

coverage areas, capacity, and air interfaces over time with

simple additions to existing equipment.

-- Ability to support and enhance value-added wireless location

services.

The solution's centerpiece is the Geometrix Geolocation Control System. Located at a mobile switching center, it manages the entire system, obtains data from Geometrix Wireless Location Sensors at base stations, performs location determination calculations, and reports location coordinates to Mobile Positioning Centers used by Public Safety Answering Points (PSAPs).

The Geometrix system also includes planning tools that can accurately predict the needs of wireless service providers' E9-1-1 location networks by using a combination of propagation models, terrain and morphology data, and location algorithms.

The system provides a gateway for maintenance networks using industry standard protocols, which provide 24-hour, 7-day total system monitoring, transparent software upgrades, system backup, configuration modifications, and an interface for remote troubleshooting and repair.

Geometrix is transparent to wireless subscribers, requiring no changes in service, including no modification or replacement of handsets, no new handset functions, and no additional user instructions. To safeguard subscriber privacy, Geometrix determines a wireless user's position only when it is specifically tasked to identify the location of a caller.

The Geometrix system has no knowledge of the caller except that the caller is temporarily using a particular channel through a specific cell site. Geometrix does not initiate position calculations without receiving an explicit instruction, for example, in response to an E9-1-1 call.

The Geometrix system has demonstrated it meets and surpasses the FCC requirements through extensive data gathering under real-world conditions. Geometrix has been extensively field-tested and is available for demonstration in an operating network located in Northern Virginia.

The network includes deployment of Geometrix equipment at multiple commercial wireless sites, covering an area of approximately 50 square kilometers.

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(TM), 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 news 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 successful discovery and correction of potential "Year 2000" computer sensitive problems by both the Company and its key suppliers and customers, and other transactions.

For more information, visit http://www.allentele.com/geometrix/. Press should contact Dennis Smith, Rossel, Inc., at 301/608-2220 or Vickie Warfield Thompson, Grayson Wireless, at 703/787-7944 x125.