ComSpace Signs Agreement with Skitronics, Inc. to Deliver More Than $1 Million of Digital Channel Multicarrier Architecture DC/MA Products.

Business Editors & High-Tech Writers

COPPELL, Texas--(BUSINESS WIRE)--March 29, 2001

Skitronics Selects DC/MA Technology After Assessing Digital

Alternatives

ComSpace Corporation, a provider of breakthrough technology that delivers spectrum efficiency to the wireless world, today announced it has signed an agreement with Skitronics, Inc. to deliver more than $1 million of Digital Channel Multicarrier Architecture (DC/MA(R)) products.

Skitronics, a Raleigh, N.C.-based two-way radio service provider of specialized and digital dispatch communications, currently operates across 30 sites in the Carolinas. The company assessed digital alternatives before selecting ComSpace's DC/MA technology. Skitronics plans to implement DC/MA Odyssey(TM) series repeater and subscriber units to increase the efficiency of its existing spectrum and upgrade to state-of-the-art digital technology.

"We selected DC/MA because we were impressed by its ability to increase capacity in an easy, efficient way," said John Komorowski, president and CEO of Skitronics. "In addition, this breakthrough technology offers digital dispatch users incredibly clear audio even in fringe signal areas, alleviating much of the garbled effect found in some digital systems. Plain and simple, DC/MA works."

The agreement with Skitronics builds upon the momentum ComSpace has achieved through previous DC/MA deployments with Cenlasa, S.A. de C.V. in Mexico, Keller Communications in Dallas, ESP Wireless in Chicago and ESP Wireless Technologies in Las Vegas. In November 1999, ComSpace Corporation and Hitachi Kokusai Electric Inc. announced a joint agreement in which Hitachi Kokusai would manufacture and distribute Hitachi Kokusai-branded DC/MA products in Japan and Asia.

ComSpace initiated its DC/MA product rollout in the LMR market due to high market demand and the immediate added value the technologies will bring to both commercial and private operators around the world. The Strategis Group estimates that DC/MA will capture more than $4 billion of the worldwide addressable LMR market for spectrally efficient technology by 2010.

"Our agreement with Skitronics represents another major step in ComSpace's first phase of selling spectrum-efficiency products to wireless operators and communications providers around the world," said Steven E. Fulford, ComSpace Corporation president and CEO. "This agreement further confirms rapid growth in the acceptance of DC/MA as a new wireless solution that provides access to multiple revenue-generating wireless applications and maximizes the use of a valuable and finite resource--wireless spectrum."

Based on ComSpace's patented DC/MA chip-set technology, the Odyssey-branded repeater and subscriber units enable companies to increase by eight times the number of logical voice/data paths on a 25 kHz channel. ComSpace's DC/MA technology also could be used to support a wide range of wireless applications such as short messaging service (SMS), e-mail, video, remote monitoring, mobile Internet and intranet access. The company's spectrum-efficiency technology increases traffic-carrying capacity regardless of frequency or bandwidth and has a broad application potential in the wireless industry, including 2, 2.5 and 3G mobile wireless networks.

DC/MA REPEATER

Power levels and range of a DC/MA repeater are equivalent to common Frequency Modulated (FM) systems, allowing the repeater to re-use existing infrastructure equipment, including combiners, multicouplers, antennas, duplexers, filters, cables, racks and cabinets. The DC/MA repeater also features:

-- Power Amps, power supplies and transceiver in a self-contained unit

-- Digital Controller/Trunk control interface cards housed separately for easy
access

-- Remote diagnostic capability for control and status monitoring

-- State-of-the-art Digital Signal Processors (DSP) and microprocessors with
communications processor modules (CPM)

-- T1, Ethernet, RS232, RS422 and RS485 interfaces

DC/MA SUBSCRIBER UNIT

The DC/MA subscriber units are designed with large, easy-to-read displays for quick visual reference and ease of implementation of data messaging. They also require only one-quarter the power output to equal FM talkback range. The DC/MA subscriber unit also features:

-- Digital LTR(R)trunking for speed and efficiency

-- 32 systems/250 groups per system (max of 512 groups)

-- Direct frequency assignment - add channels without

reprogramming handsets

-- System busy queuing - tone and display notifications of

available channels

-- AMBE+(R) Vocoder from DVSI

ComSpace's line of DC/MA-based products will be on display at the IWCE conference at the Las Vegas Convention Center, booth number 1300, March 28-30, 2001.

About ComSpace Corporation

ComSpace Corporation develops breakthrough technology and offers products that deliver spectrum efficiency to the wireless world. Based in Coppell, Texas, ComSpace is a growing company and expects to soon have more than 100 employees. The company's products include its patented Digital Channel Multicarrier Architecture (DC/MA(R)) technology, which increases the traffic-carrying capacity of wireless communications channels. ComSpace currently has strategic partnerships with Digital Voice Systems, Inc., Hitachi Kokusai Electric Inc., Monterey Telecommunication Technology, Philips Semiconductor, SmartLink Development Networks, Inc., Trident Micro Systems and Zetron Corporation. Visit us at www.comspacecorp.com.