HIGHWAYMASTER COMMUNICATIONS INC
10-K, 1997-03-31
ELECTRONIC PARTS & EQUIPMENT, NEC
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                          SECURITIES AND EXCHANGE COMMISSION
                              Washington, D.C. 20549

                                    FORM 10-K
                                   ___________
(Mark One)
   [X]    ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES 
          EXCHANGE ACT OF 1934

                     FOR THE FISCAL YEAR ENDED DECEMBER 31, 1996

                                       OR

   [ ]    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
          EXCHANGE ACT OF 1934

                 For the transition period from __________ to __________ 
                  
                        COMMISSION FILE NUMBER 0-26140

                      HIGHWAYMASTER COMMUNICATIONS, INC.
             (Exact name of Registrant as specified in its charter)

          DELAWARE                                    51-0352879
(State or other jurisdiction of                    (I.R.S. Employer 
 incorporation or organization)                  Identification Number)
 
                        16479 DALLAS PARKWAY, SUITE 710
                              DALLAS, TEXAS 75248
          (Address of principal executive offices, including zip code)

       (Registrant's telephone number, including area code): (972) 732-2500

         Securities Registered Pursuant to Section 12(b) of the Act: NONE

           Securities Registered Pursuant to Section 12(g) of the Act:

                           COMMON STOCK, $.01 PAR VALUE
                              (Title of each Class)

    Indicate by check mark whether the Registrant (1) has filed all reports 
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 
1934 during the preceding 12 months (or for such shorter period that the 
registrant was required to file such reports), and (2) has been subject to 
such filing requirements for the last 90 days.  YES  X   NO     .
                                                   -----   ----- 

    Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of Registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. / /  

    The aggregate market value of the voting stock held by non-affiliates of
the Registrant as of March 21, 1997 was $91,860,599.* 

    The number of shares outstanding of Registrant's Common Stock was 24,853,808
as of March 21, 1997. 


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                     DOCUMENTS INCORPORATED BY REFERENCE

    Portions of Registrant's definitive Proxy Statement to be filed with the 
Securities and Exchange Commission pursuant to Regulation 14A in connection 
with the 1997 annual meeting of stockholders are incorporated herein by 
reference into Part III of this Report.  Such proxy statement will be filed 
with the Securities and Exchange Commission not later than 120 days after the 
Registrant's fiscal year ended December 31, 1996.

    Certain exhibits filed with the Registrant's Registration Statement on 
S-1 (Registration No. 33-91486), as amended, the Registrant's Annual Report 
on Form 10-K for the fiscal year ended December 31, 1995, the Registrant's 
Form 10-Q Quarterly Report for the quarterly period ended June 30, 1996, the 
Registrant's Current Report on Form 8-K filed on October 7, 1996, and the 
Registrant's Form 10-Q Quarterly Report for the quarterly period ended 
September 30, 1996 are incorporated herein by reference into Part IV of this 
Report.

- ------------------- 
    *Excludes the Common Stock held by executive officers, directors and 
stockholders whose ownership exceeds 5% of the Common Stock outstanding at 
March 21, 1997.  Exclusion of such shares should not be construed to indicate 
that any such person possesses the power, direct or indirect, to direct or 
cause the direction of the management or policies of the Registrant or that 
such person is controlled by or under common control with the Registrant. 






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                      HighwayMaster Communications, Inc.

                                  FORM 10-K
                 For the Fiscal Year Ended December 31, 1996

                                    INDEX
                                                                        PAGE 
                                                                        ---- 
PART I
  ITEM 1.  BUSINESS.....................................................   1
           GENERAL......................................................   1 
              The Company...............................................   1 
              Trucking Industry Overview................................   1 
              Mobile Communications Needs in the Trucking Industry......   2 
              The HighwayMaster Products and Services...................   3 
              Infrastructure............................................   6 
              Strategic Service Alliances of the Company................   9 
              Product Manufacturing and Supply..........................  11 
              Marketing and Distribution................................  11 
              Customer Service and Warranty.............................  11
              Current Installed Base....................................  12 
              Additional Growth Opportunities...........................  13 
              Competition...............................................  15 
              Patents and Proprietary Technology........................  17 
              Regulation................................................  18 
              Employees.................................................  18
           RECENT FINANCING TRANSACTIONS................................  19 
              SBW Transactions..........................................  19 
              Recapitalization Transactions.............................  19 
           RISK FACTORS.................................................  20 
              Forward Looking Statements................................  20 
              Limited Operating History; History of Losses..............  20 
              Status of AT&T Contract; Network Services Center..........  20 
              Operational Difficulties..................................  21 
              AT&T Litigation...........................................  21 
              Dependence on Cellular Infrastructure.....................  22 
              Dependence on Clearinghouse Services......................  22 
              Product Supply Arrangements...............................  23 
              Lack of Capitalization and Other Resources Required 
                for Growth..............................................  23 
              Amended Stockholders' Agreement; Control of the Company...  23
              Common Stock Available for Purchase by SBW................  24 
              Certain Rights of SBW.....................................  24
              Competition and Technological Change......................  25 
              Billing Discrepancies.....................................  26 
              Uncertainty Regarding Patents and Proprietary Rights......  26 
              Uncertainty of Government Regulation......................  27 
              Dependence on Key Personnel...............................  28 
              Product Liability.........................................  28 
              Dividend Policy...........................................  28
              Shares Eligible for Future Sale...........................  28
              Volatility of Stock Price.................................  29 
  ITEM 2.  PROPERTIES...................................................  29
              Real Property and Leases..................................  29 
  ITEM 3.  LEGAL PROCEEDINGS............................................  29
  ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS..........  30 

                                      i 
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PART II
  ITEM 5.  MARKET FOR REGISTRANT'S COMMON STOCK AND RELATED 
             STOCKHOLDER MATTERS........................................  30 
  ITEM 6.  SELECTED FINANCIAL DATA......................................  31 
  ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL 
             CONDITION AND RESULTS OF OPERATIONS........................  32 
  ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA..................  37 
  ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON 
              ACCOUNTING AND FINANCIAL DISCLOSURE.......................  38 

PART III
  ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT...........  39 
  ITEM 11. EXECUTIVE COMPENSATION.......................................  39 
  ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS 
              AND MANAGEMENT............................................  39 
  ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS...............  39 

PART IV
  ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS 
              ON FORM 10-K .............................................  40 


                                      ii 

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                                        PART I

ITEM 1.  BUSINESS

GENERAL

    THE FOLLOWING DISCUSSION IS QUALIFIED IN ITS ENTIRETY BY THE MORE DETAILED
INFORMATION AND CONSOLIDATED FINANCIAL STATEMENTS (INCLUDING THE NOTES THERETO)
APPEARING ELSEWHERE IN THIS ANNUAL REPORT ON FORM 10-K.  STOCKHOLDERS SHOULD
CAREFULLY CONSIDER THE INFORMATION PRESENTED UNDER "RISK FACTORS" BELOW.

THE COMPANY

    HighwayMaster Communications, Inc., a Delaware corporation, was originally
incorporated as HM Holding Corporation on January 28, 1994.  HighwayMaster
Communications, Inc. holds all of the outstanding shares of its operating
subsidiary, HighwayMaster Corporation (hereinafter, jointly with HighwayMaster
Communications, Inc., referred to as "HighwayMaster" or the "Company").  The
Company operates a wireless enhanced services network with both voice and data
capabilities in 99% of the available cellular coverage areas in the United
States and 100% of the A-Side cellular coverage areas in Canada.  This network
covers approximately 95% of the United States interstate highway system and
consists of a unique integration of Company provided on-board equipment and
software with various transmission, long distance, switching, tracking and other
services and facilities provided by certain telecommunications companies and
more than 70 cellular carriers.  Through this private network, the Company 
provides integrated mobile voice, data, tracking, and fleet management 
information services to trucking fleets and other operators in the long-haul
segment of the transportation industry. 

    The HighwayMaster system includes a Mobile Communication Unit (the "Mobile
Communication Unit" or "Unit") installed in each truck and a proprietary
dispatch software package developed by the Company for use by trucking
companies.  The Mobile Communication Unit transmits and receives voice and data
communication to and from long-haul trucks through the Company's private
network.  In addition, the Unit contains a sophisticated navigational tracking
device that enables dispatchers to obtain accurate position reports for trucks
located anywhere in the United States and Canada.  The Company's dispatch
software package enables a trucking company to optimize the use of its fleet by
processing data transmitted by Mobile Communication Units and performing a
variety of fleet management functions.

    The Company is in the process of expanding its services to include a 
broader range of information management systems and services for the 
trucking industry, as well as offering access to its proprietary network and 
technology for use in automotive security systems.  See "--Additional Growth 
Opportunities."

TRUCKING INDUSTRY OVERVIEW
 
    Industry publications indicate that there were 16.2 million commercial 
vehicles registered in the United States in 1993.  A 1992 survey published by 
the United States Census Bureau showed approximately 2.6 million commercial 
trucks were in larger-size categories likely to be traveling on interstate 
highways.  Although the Company expects to generate business from all sectors 
of the trucking industry and related industries, the Company is currently 
focusing on a core group of trucking fleets and other operators who own or 
operate approximately 700,000 to 800,000 trucks.  

                                      1 
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    The Company's initial target market consists of private and for-hire fleet
operators, owner-operators and other operators of larger-size trucks that
utilize the United States and Canadian highway systems.  FOR-HIRE CARRIERS are
companies whose primary business is trucking and whose revenues are from
transporting goods on a for-hire basis.  PRIVATE FLEETS are operated by
non-trucking firms that haul their own freight.  OWNER/OPERATORS are individuals
who own and operate their own trucks.  Some owner-operators work for a single
company under a lease agreement, while others work with transportation brokers
to find loads or operate their own small transportation businesses. 

    Partial deregulation in 1980 has resulted in lower barriers to entry and
increased competition in the long-haul trucking industry.  Greater efficiency
and lower prices have attracted customers away from other modes of land
transportation to the trucking industry.  Between 1983 and 1993, the number of
miles driven by medium and heavy duty trucks increased by 41%, and the number of
tractor registrations increased by 4%.  Total gross freight revenue of the
trucking industry reported by the ICC in 1993 was approximately $345.0 billion. 

    Management believes that enhancing efficiency through cost-effective 
mobile communication will be an important component of improved profitability 
for trucking companies.  As a result, management believes that there is 
strong demand in this market for cost-effective communications systems that 
enable voice and data messages to be transmitted to and from long-haul 
trucks. Management estimates that approximately 5% of larger size commercial 
trucks and approximately 25% of trucks operated by the core group of trucking 
fleets and other operators on which the Company is focusing are currently 
equipped with any form of nationwide two-way mobile communications, including 
satellite systems and traditional cellular communications. 

MOBILE COMMUNICATIONS NEEDS IN THE TRUCKING INDUSTRY

    The Company believes that demand for the HighwayMaster system will continue
to grow as trucking companies experience increased industry competition and face
mounting internal and external pressures to adopt mobile communications systems.

    External pressures include competition from the increasing number of 
trucking companies that are installing mobile communications systems, demands 
placed on the long-haul trucking industry to meet just-in-time inventory 
demands, and regulatory and environmental requirements.  The Company 
estimates that long-haul trucking fleets have installed approximately 160,000 
mobile communications systems since 1988 in the United States and the Company 
believes that this will increasingly place those fleets without service at a 
competitive disadvantage. Furthermore, as just-in-time delivery inventory 
control becomes more prevalent, manufacturers increasingly will require that 
materials arrive immediately before incorporation into the manufacturing 
process.  The resulting pressure on trucking companies has stimulated demand 
for more efficient two-way communications systems to assure on-time pick-up 
and delivery, improved load matching within a widely dispersed fleet and 
current tracking of shipment location.  In fact, certain large shippers 
require all new contracting trucking companies to be equipped with on-board 
communications and tracking equipment. Additionally, trucking companies must 
maintain detailed records relating to miles driven by state, hours driven by 
each driver and other information.  Some hazardous substances may only be 
transported over certain routes.  The HighwayMaster system automatically 
gathers required information and aids in the optimal routing of trucks.  

                                      2 
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    Internal pressures include containing costs through improved operating 
efficiency, improving driver quality of life thereby reducing critical 
turnover rates, and increasing the safety of drivers, capital equipment and 
cargo by reducing the likelihood of accidents.  The HighwayMaster system 
assists trucking companies in improving efficiency by increasing the 
utilization of equipment and reducing the number of empty miles and 
out-of-route miles. With the HighwayMaster system,  it is not necessary for 
truck drivers to make frequent stops to place telephone calls to dispatchers. 
In addition, the Company's system allows swift and efficient matching of 
drivers with shipments, thereby reducing layovers and fuel costs associated 
with empty miles.

    With driver turnover approaching 100% in the trucking industry today, the
Company believes that trucking companies can increase driver satisfaction and be
more successful in attracting and retaining competent drivers by giving a driver
the ability to contact or be contacted by family and friends while on the road. 
Furthermore, since driver bonuses are often calculated based on loaded miles
driven and overall efficiency, drivers benefit from a system that allows them to
be more efficient and avoid unnecessary stops. 

    Finally,  by allowing a driver to communicate using "hands free"
voice-activated equipment while traveling, as the HighwayMaster system does, the
distractions and hazards of placing or receiving a call while on the road are
minimized.  Voice commands spoken into a microphone clipped to the visor and
synthesized voice responses from the Units provide a safety advantage over
traditional cellular telephones, which must be grasped with one hand during
operation and over full keyboard typing necessary to operate competing
satellite-based systems, which drivers are not permitted to use while the
vehicle is in motion.  Further, by enabling the driver to communicate while
traveling in his vehicle, the HighwayMaster system reduces stops to make
telephone calls at truck stops, where management believes a large percentage of
all trucking accidents occur.  The HighwayMaster system also automatically
reports time, speed and routes driven by each truck to the dispatcher, which can
be used to enhance safety troubleshooting and driver safety counseling, and the
tracking service enables the trucking company to locate stolen trucks or trucks
involved in a roadside emergency. 

THE HIGHWAYMASTER PRODUCTS AND SERVICES

    The Company believes that the HighwayMaster system represents the most 
complete and cost-effective package of mobile communication services and 
products currently available to the long-haul trucking industry.  The 
Company's private enhanced services network provides the link between the 
dispatcher and each truck.  The dispatcher and truck can maintain contact by 
voice and data communication, and the dispatcher can obtain automated reports 
regarding the location of each truck, generally accurate to within 100 yards. 

    PRICING.  The Company's products and services are economically priced to 
appeal to virtually all participants in the long-haul trucking industry.  The 
Company offers the on-board Mobile Communication Unit at a retail price of 
$1,995, with tiered discounts for larger volume purchases.  The Company's 
customers are charged a flat fee of $0.53 per minute for voice communication 
within the United States and $0.64 per minute for cross-border communication 
with Units in Canada, which includes all cellular air time and long-distance 
charges, $0.48 per minute for data transmission within the United States and 
$0.59 for cross-border data transmissions and $41 per month per installed 
Mobile Communication Unit to utilize the system.  In addition, callers are 
charged a fee for each call billed to a separate account, such as a credit 
card, calling card or HighwayMaster account.  The Mobile Communication Unit 
is installed in the customer's trucks, and the dispatcher is 

                                      3 
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equipped with mapping and management software at no additional charge. This 
software can be integrated into the host computer systems operated by the 
Company's customers or can be installed and operated on a personal computer 
equipped with a hard disk and a modem.

    MOBILE COMMUNICATION UNIT DESCRIPTION.  HighwayMaster equipment mounted in
each truck includes the following: (i) a menu-driven display module which
provides two large lines of scrollable text on the dashboard; (ii) a microphone
which clips on the sun visor for "hands free" communication utilizing
voice-recognition and voice-synthesis technologies; (iii) a modified cellular
telephone handset and cradle; (iv) a cellular antenna; (v) a GPS navigational
antenna; and (vi) a computerized system module in the vehicle which contains the
positional reporting device, the cellular transceiver and the on-board computer.
The system module also houses voice-activation and voice-synthesis software,
data storage capability and unique technology that effectively eliminates the
risk of cellular roaming fraud.  The module provides ports to allow for
incorporation of current and future peripheral equipment, such as a fax machine,
scanner, printer, engine monitoring equipment and trailer temperature
monitoring.  The Mobile Communication Unit was designed to be "user-friendly," 
to have installation times that are shorter than competing satellite unit
installations, and to limit driver training to an average of one hour.  The
system module is remotely programmable from the host computer by the trucking
company and by HighwayMaster. 

    VOICE COMMUNICATIONS.  The Company provides nationwide voice 
communications services at a rate of $0.53 per minute for calls within 
the United States. By comparison, currently available cellular long-distance 
call delivery systems require the payment of rates that are significantly 
higher than those charged by the Company.  The driver controls the functions 
of the Mobile Communication Unit by an enhanced cellular telephone handset.  
A microphone clipped to the truck's visor and voice-recognition capability 
also allow the system to be controlled by the driver's voice commands.  While 
in a cellular region covered by HighwayMaster, a driver may initiate 
telephone calls to any phone number pre-approved by the dispatcher, and the 
dispatcher may initiate telephone calls to the driver.  Drivers may be issued 
calling card accounts by HighwayMaster or use selected credit cards, for 
units operating under the Company's Network Services Center (the "NSC"), or 
may be issued calling cards by AT&T Corp. ("AT&T"), for units operating under 
the AT&T Complex (as defined herein), that allow them to place personal 
telephone calls to any telephone number.  Such calls are billed separately to 
the drivers' home addresses.  See "--Infrastructure -- Enhanced Service 
Complexes."  The nationwide call delivery feature, combined with 
calling-party payment for calls, sets the Company's product apart from 
conventional cellular service. 

    DATA TRANSMISSION.  The Mobile Communication Unit permits the 
transmission and receipt of data between a truck and a dispatcher.  The $0.48 
per minute charge for data transmissions within the United States translates 
into costs as low as $0.0007 per character for a typical dispatch message of 
between 600 and 700 characters.  The dispatcher may type free form data 
messages, which appear on the driver's data display screen on the dashboard 
and can be stored for future reference.  The driver may send up to 99 
pre-programmed status messages with accompanying numerical data such as "At 
Dock Loading" or "Trailer Number 21" that automatically update the trucking 
company's host computer, eliminating the data entry function a dispatcher 
must perform at the trucking company.  The driver also may enter status 
messages by voice command or through the telephone handset keypad.  Certain 
options allow the Mobile Communication Unit to monitor engine speed and 
temperature, automatically transmitting the data to the trucking company.  
Future enhancements may allow for trailer temperature monitoring and other 
features. 

                                      4 
<PAGE>

    FACSIMILE TRANSMISSION.  The Company provides nationwide facsimile
communications services at a rate of $0.53 per minute for either local or
long-distance fax transmissions.  Fax Interface is a recent product advancement
which assists customers in transmission and receipt of documents such as bills
of lading, permits and detailed instructions that a truck driver might need on
an immediate basis. 

    FLEET TRACKING.  Precise position and historical route reports are 
automatically provided to the dispatcher's PC with each call to or from the 
truck.  For the cost of $0.48 per minute of data transmission time within the 
United States and $0.59 per minute for cross-border data transmissions, the 
dispatcher can obtain a real-time position report from a specific truck by 
keyboard request.  Reports are generally accurate to within 100 yards.  These 
reports include position logs, which are stored internally by each Mobile 
Communication Unit, providing historical route information even if the truck 
travels out of cellular coverage.  A trucking company's use of these tracking 
capabilities can improve management and facilitate better customer service.  
The navigational tracking capabilities of the HighwayMaster system reduce the 
number of out-of-route miles and facilitate efficient matching of drivers 
with loads, thereby reducing expenses and empty miles driven. 

    INTEGRATED FLEET MANAGEMENT SOFTWARE.  The Company's software package
enables a trucking company to optimize the use of its fleet by processing data
transmitted by its Mobile Communication Units, managing dispatch records, driver
logs, state fuel tax calculations, route planning and other functions.  The
dispatch software can be loaded on to a PC equipped with a modem, or the system
can be interfaced directly to be networked with a midrange or a mainframe
computer for access by the dispatcher or a shipper.  The software performs
essentially three functions: (i) order entry, (ii) dispatch and tracking, and
(iii) truck reconciliation and mapping.  The order entry function stores and
manages the ordering information related to each shipment, including the
assignment of loads to specific trucks, required delivery times and bills of
lading.  The dispatch and tracking function utilizes GPS location information
along with data entered by the driver, to provide information for any truck
within the fleet, including destination, load, drivers' identification and
mileage driven.  The truck reconciliation and mapping application provides
historical information such as percentage of on-time deliveries and miles driven
per state for fuel tax calculation.  An online interstate highway map can be
used to graphically plot the routes traveled by each truck.  The system can
highlight trucks that are running behind schedule or are available for load
pick-ups. 

    ROLLING ETA.  Rolling ETA-TM- is an enhancement to the Company's Model 5000
Series which instructs the HighwayMaster system's microprocessor mounted inside
the truck to calculate the estimated arrival time based upon average speed,
hours per day and delivery parameters and alerts the driver and dispatcher
automatically if the truck is going to miss an arrival time.     

    HighwayMaster is continuing the development of its operational software. 
The principal software suppliers that currently market full feature software
application programs to trucking companies offer interfaces to the HighwayMaster
system (which allow data communication directly between the trucking company's
existing mainframe computer and the Company's Mobile Communication Units). 
These third party software suppliers generally offer the customized
HighwayMaster interface at reasonable cost directly to their customers. 
HighwayMaster provides some custom interface development to very large
customers.


                                      5 
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    Although HighwayMaster software operating on a host PC is necessary to send
and receive data messages and to access tracking and mapping information, it is
not necessary for use of the voice communication functions of the Mobile
Communication Unit.  In sales to small owner/operators, voice communication
appears to be the primary selling factor for the system, with some purchasers
opting to receive periodic reports from a host operated by the Company instead
of installing a host PC in their dispatch offices.

INFRASTRUCTURE
    
    CONFIGURATION OF THE HIGHWAYMASTER SYSTEM.  The diagram below depicts the
configuration of the HighwayMaster system and relationships among the various
participants:

    [Diagram of HighwayMaster System, which illustrates the connections among 
(1) the Mobile Communication Unit, (2) the cellular carrier, (3) GTE-TSI, 
(4) EDS, (5) the switching complex, (6) long distance and local exchange 
carriers, (7) the dispatcher's PC, (8) all other telephones and (9) GPS 
satellites]

    The processes illustrated above are fully automated, allowing 
communication with drivers from any telephone in the United States and 
Canada.  As the driver enters a new cellular coverage area, the Mobile 
Communication Unit (1) automatically sends an identifying signal to the 
cellular carrier (2).  This cellular carrier information is sent via 
specialized hardware and software provided by GTE-TSI (3) and occasionally 
EDS (4) to a switching complex owned and operated by HighwayMaster or AT&T 
(5) so such switching complex will be able to direct future incoming calls 
for that driver to the appropriate cellular carrier.  In the third quarter of 
1996, the Company began commercial service with its own switching complex, 
the NSC.  For new customers commencing service since July 1, 1996, all 
transmissions are routed through the NSC. For most customers commencing service
prior to such time, transmissions continue to be routed through a switching 
complex maintained and operated by AT&T (the "AT&T Complex").  See "-- Enhanced
Service Complexes."

    When the driver makes a phone call, the Mobile Communication Unit (1) is 
connected to a switching complex (5) via the cellular carrier (2) and 
existing long distance lines (6), and such switching complex switches the 
call to the appropriate destination, which may be the Dispatcher PC for data 
(7) or any other telephone for voice (8).  The Company's NSC requires entry 
of a personal billing account or  selected credit card number, and the AT&T 
Complex requires entry of an AT&T Calling Card number, for separate billing 
of personal calls.  See "-- Enhanced Service Complexes."

    When dispatchers or outside callers desire to call a driver, their calls
are switched by the switching complex (5) directly over existing long distance
lines and local exchange carriers (6) to the appropriate 

                                      6 
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cellular carrier (2), which completes the call to the driver (1).  Data 
messages are first stored in the switching complex (5) and then passed to or 
from the Dispatcher PC (7) and the Mobile Communication Unit (1). 

    The Mobile Communication Unit (1) automatically records a precise 
position report obtained from GPS satellites (9) on a continuous basis.  This 
log of reports and any other stored data is uploaded to the appropriate 
switching complex with every business voice or data call made to or from the 
Mobile Communication Unit.  Additionally, the Dispatcher PC (7) can initiate 
a call at any time to obtain an immediate position report from any truck. 

    CELLULAR INDUSTRY.  Cellular communication has emerged as the dominant
service in wireless voice communication.  The cellular infrastructure utilized
by the Company is already in place.  By contrast, the Company's satellite and
SMR competitors must expend substantial amounts of capital and several years of
development time to construct networks capable of transmitting and receiving
voice messages from customers nationwide. 

    The Federal Communications Commission (the "FCC") has provided for a 
two-operator duopoly in each cellular market. Only two licenses are awarded 
to provide cellular service in any specific cellular MSA or RSA.  One of the 
two licenses in each market is initially awarded to a company or group that 
is affiliated with a local landline telephone carrier in the market (the 
"Wireline" or "B-Side" license) and the other license in each market is 
initially awarded to a company, individual or group not affiliated with any 
landline telephone carrier (the "Non-Wireline" or "A-Side" license).  The 
HighwayMaster system utilizes both the A-Side and B-Side carriers in its 
coverage areas, and has agreements with both carriers in approximately 30% of 
its markets, allowing system redundancy and greater flexibility. In addition 
to cellular licenses, the FCC may issue up to six licenses in each market to 
personal communications services ("PCS") providers. At the present time, PCS 
is  generally available only in certain metropolitan markets but is expected 
to create increased competition for cellular operators where available.

    Increased demand for cellular service is driving investment in cellular 
networks and improving service coverage.  Cumulative capital investment 
within the cellular industry has reached $32.5 billion as of December 1996, 
up from $6.3 billion in December 1990.  Total number of cell sites increased 
to 30,045 in December 1996 up from 10,307 in December 1992.  Total cellular 
customers reached more than 44.0 million in December 1996.

    Management believes that ordinary cellular subscribers utilizing services
outside of their home market will continue to be assessed roamer and long-
distance surcharges, although roaming rates are expected to decline. Another 
shortcoming in current roamer usage of cellular services is that the cellular 
industry has failed to provide an effective and universal incoming call delivery
system to subscribers on a nationwide basis.  Current autonomous-registration 
call delivery systems are generally available in urban areas and are becoming 
more prevalent in rural markets.  These shortcomings in nationwide cellular 
coverage have been overcome in the HighwayMaster system, because it offers 
nationwide call delivery in coverage areas which include approximately 95% of 
the United States interstate highway system, and air time rates that are free 
of roamer and variable long-distance surcharges. 

    Management believes that due to the large number of existing cellular 
subscribers, consumer ownership of many cellular telephones and the extensive 
capital investment by cellular carriers in the existing cellular 
infrastructure, it is unlikely that the existing cellular network will be 
abandoned or replaced by SMR or other competing technologies.  A number of 
cellular carriers are in the process of upgrading from existing analog 
cellular systems to enhanced systems utilizing digital technology.  However, 
management believes that the large number of analog telephones already owned 
by cellular subscribers will ensure that cellular telephone operators 
continue to 

                                      7 
<PAGE>

offer services to existing analog users concurrently with digital users, over 
an extended or indefinite phase-in period that exceeds the expected useful 
life of the Mobile Communication Units. 

    ENHANCED SERVICE COMPLEXES.  From 1993 to 1996, the Company and AT&T were 
parties to a contract (the "AT&T Contract") pursuant to which AT&T provided 
enhanced call processing and data management services and long-distance 
transport for the Company and its customers through the AT&T Complex.  AT&T 
terminated the AT&T Contract effective as of June 29, 1996.  In the third 
quarter of 1996, the Company began commercial service with its own switching 
complex, the NSC, which was designed and constructed for the Company by IEX 
Corporation ("IEX").  For new customers commencing service after June 29, 
1996, the NSC has fully replaced the AT&T Complex.  For most customers 
commencing service prior to such time, AT&T continues to provide services 
through the AT&T Complex without a formal contract  with the Company in 
fulfillment of AT&T's obligations under existing service agreements entered 
into with each customer.  

    Both the NSC and the AT&T Complex provide switching services among each
Mobile Communication Unit, the HighwayMaster nationwide cellular network, the
dispatcher PC and the nationwide landline telephone network.  Each switching
complex is capable of processing, storing and transmitting voice and data
transmissions.  Voice communications are routed from each Mobile Communication
Unit through the HighwayMaster nationwide cellular network to the appropriate
switching complex.  The switching complex automatically completes the call
through the public telephone network to the end user.  Voice communications from
the dispatcher or personal calls for the driver are routed through a toll-free
telephone number to the appropriate switching complex, which completes the call
through the appropriate wireless cellular system for the region in which the
truck is operating.  Data packets from the host or a Mobile Communication Unit
are stored in the switching complex, then transmitted in cost-effective batches.
Time critical information, as determined by the trucking company, is immediately
transmitted to the receiving party.  The switching complex records data from
each transmission, generates a call record and processes the information into
customer billing records.  HighwayMaster can increase capacity of the NSC as
needed to meet growing caller demands by increasing the line capacity and number
of modems and controllers.

   The Company believes that the NSC has certain advantages over the AT&T 
Complex. This facility generally incorporates more advanced architecture and 
offers additional functions not available through the AT&T Complex. In 
addition, the NSC gives HighwayMaster increased flexibility to add new 
features and services without having to negotiate contract modifications with 
AT&T and also enhances the Company's ability to monitor operations and 
perform diagnostic functions to identify problems.

    CALL ROUTING.  Each time a Mobile Communication Unit travels into a new MSA
or RSA, it automatically registers with the cellular carrier under contract with
the Company.  The cellular carrier routes the message to GTE-TSI or EDS, which
are also under contract with the Company and provides the switching complex with
call delivery information necessary for the switching complex to deliver calls
to the Mobile Communication Unit as it travels through the new MSA or RSA. 
Subsequent telephone calls or data transmissions originating from the Mobile
Communication Unit are recognized by the local cellular carrier and screened to
allow call routing only through the switching complex, where additional
screening is conducted.   

    Before a call originating from a Mobile Communication Unit is received by
the switching complex, the Mobile Communication Unit must establish an encoded
electronic "handshake" with the switching complex.  The effective elimination of
roamer fraud is a factor in the Company's ability to contract with local
cellular carriers throughout the country. 

    NAVIGATION TECHNOLOGY.  GPS allows users to identify the location of any
truck at any time via satellite.  GPS is operated by the United States
government and broadcasts navigational information from a network of dedicated
satellites orbiting the earth.  GPS navigational receivers interpret signals
from 

                                      8 
<PAGE>

multiple satellites to determine the receiver's geographical coordinates, 
elevation and velocity.  GPS units available for civilian use are generally 
accurate within 100 yards.  GPS navigational signals can be received 
worldwide, without adaptation of the receiver unit to foreign standards. 
Management believes that the network of GPS navigational satellites will be 
maintained by the United States Defense Department in an operational status 
for the foreseeable future.  Although stand-alone GPS units are available for 
purchase by any consumer at relatively low cost, raw navigational information 
is of little use to trucking companies unless the GPS receiver is integrated 
with a computer system, such as the Mobile Communication Unit, to record 
routes traveled relative to mapped roadways or to transmit position reports 
to a central dispatcher.  

    The Company's use of government-operated GPS satellites differs 
substantially from competitors' use of satellites for two-way communications.
GPS satellites send one-way signals to mobile receivers, allowing the mobile
unit to plot its geographical coordinates.  GPS satellites are not capable of
two-way communication, and no charges are assessed to users of the GPS services.
For two-way mobile communications, the Company relies exclusively on earth-based
cellular systems.  The Company's primary competitors utilize leased or owned
communications satellites for two-way data communications, incurring costs
associated with ownership or leasing of satellite communication capacity.

STRATEGIC SERVICE ALLIANCES OF THE COMPANY

    LOCAL CELLULAR CARRIERS.  HighwayMaster has established a network for 
United States-based trucking operators that offers mobile communication 
coverage in 99% of the available cellular coverage in the United States 
(which covers approximately 95% of the United States interstate highway 
system) and 100% of the A-Side coverage in Canada.  The Company has 
agreements in place with more than 70 cellular carriers, including all seven 
regional Bell operating companies, GTE, and Rogers Cantel, Inc., in more than 
720 markets in the United States and Canada.  The Company has entered into 
contracts with both A-side and B-side carriers in approximately 30% of United 
States cellular coverage regions.  Management expects its back-up coverage to 
continue to increase as more relationships are established.  Management 
believes that local cellular carriers are motivated to make capacity 
available to the Company for various reasons, including (i) increases in 
volume of air time usage, (ii) no customer service expense, (iii) the 
inability of customers using the HighwayMaster system to switch to another 
cellular carrier, (iv) no customer acquisition costs, (v) access to a 
national customer base not otherwise available to local cellular carriers, 
(vi) use of the HighwayMaster system by long-haul truckers who typically 
travel through less dense cellular coverage areas, (vii) use of the 
HighwayMaster system by truckers typically during off-peak time periods and 
(viii) no expenses associated with fraudulent usage as a result of the 
security protection afforded by the HighwayMaster system.  Current terms of 
contracts between the Company and each of its cellular carriers are generally 
for one year, with automatic one-year successive renewal terms unless either 
party elects to terminate the contract upon 30-days' notice prior to June 30 
of each year.  Although the cellular carriers are not obligated to renew the 
contracts, management believes these relationships will continue to be in the 
best interest of cellular carriers because of the factors discussed above. 

    AT&T.  From 1993 to 1996, the Company and AT&T were parties to the AT&T 
Contract pursuant to which they offered certain combined telecommunications 
services to their joint customers in the long-haul trucking industry.  Under 
the AT&T Contract, AT&T agreed to provide certain enhanced call processing, 
data management services and long-distance network transport to the joint 
customers of the Company and AT&T.  The call processing and data management 
functions performed by AT&T are housed in the AT&T Complex, which was 
developed by AT&T specifically for this application utilizing the Company's 
confidential trade secrets.  The AT&T Contract was scheduled to expire on 
June 29, 1998, unless terminated as of June 29, 

                                      9 
<PAGE>

1996 or June 29, 1997 at the option of AT&T upon 180 days prior written 
notice to the Company. 

    In March 1996, the Company learned that AT&T intended to terminate its
exclusive agreement with HighwayMaster and offer use of the AT&T Complex and
confidential HighwayMaster trade secrets to one or more of the Company's
competitors.  In February 1996, the Company filed suit in Federal District Court
against AT&T seeking, among other things, preliminary and permanent injunctive
relief restraining AT&T from using and disclosing HighwayMaster's trade secrets
and proprietary information relating to its mobile communications technology. 
See "Legal Proceedings".  On March 12, 1996, AT&T notified the Company that it
was terminating the AT&T contract as of June 29, 1996.  AT&T indicated that upon
the effective date of cancellation it will no longer honor the prior
contractual restrictions which prohibited it from marketing enhanced services
from the AT&T Complex directly to the long-haul trucking industry or in
conjunction with competitors of HighwayMaster.  AT&T did, however, expressly
state its intention to honor continuing contractual obligations with existing
joint customers of it and HighwayMaster until those third party agreements'
current expiration dates.  See "Risk Factors -- Status of AT&T Contract; Network
Services Center."

    IEX CORP.  IEX designed, tested, constructed and serves as facility 
manager for the NSC.  The NSC constitutes a critical link in providing 
certain enhanced call processing, data management services and is necessary 
for the Company to receive, store and route voice and data transmissions to 
and from its customers. See "-- Infrastructure -- Configuration of the 
HighwayMaster System," "--Infrastructure -- Enhanced Service Complex", and 
"Risk Factors -- Status of AT&T Contract; Network Services Center."

    GTE MOBILECOMM, GTE-TSI AND EDS.  GTE MobileComm indirectly provides a 
significant amount of cellular coverage for the HighwayMaster system and pays 
all cellular carriers in the HighwayMaster system for HighwayMaster, billing 
the Company on a monthly basis.  The term of the current agreement with GTE 
MobileComm expires in March 1999.

    GTE-TSI and EDS provide clearinghouse functions to the cellular industry,
creating the data link between a foreign network and a roamer's home cellular
service area, performing credit checking functions and facilitating roamer
incoming call delivery functions.  The Company's contract with GTE-TSI covers
certain functions that are critical to the Company's ability to instantly
deliver calls nationwide.  It covers an initial term of three years ending
March 14, 1998, with an extension of up to one year at existing rates, at the
Company's option.  In addition, the Company is guaranteed the right to renew the
contract for up to 10 one-year periods beyond the primary term, at a reasonable
rate to be determined by GTE-TSI.  The agreement provides for mutual exclusivity
by the Company and GTE-TSI with respect to the provision and use of certain
critical call delivery features to provide service to the trucking industry. 
The agreement between the Company and EDS involves the provision by EDS of
certain clearinghouse functions in connection with non-wireline cellular
carriers.  Fewer data processing functions are conducted by EDS due to the
Company's consolidation of certain common data processing functions with
GTE-TSI.  The agreement with EDS expires on July 15, 1998 and is renewable for
subsequent one-year terms unless 60-days' notice is provided prior to the
termination date of the agreement.  See "Risk Factors -- Dependence on
Clearinghouse Services." 

                                      10 
<PAGE>

PRODUCT MANUFACTURING AND SUPPLY

    Comptronix Corporation assembled the Mobile Communication Units for the 
Company pursuant to the Company's specifications until the third quarter of 
1996 when it sold substantially all of its assets and assigned its customer 
purchase orders to Sanmina Corporation ("Sanmina").  After the sale, Sanmina 
has continued production of Units for the Company under the same prices and 
terms as its prior arrangement with Comptronix Corporation.  The various 
components used by Sanmina in the assembly of the Units (including GPS 
components and cellular transceivers) are obtained from certain other 
manufacturers such as Motorola ("Motorola").  See "Risk Factors -- Product 
Supply Arrangements."

MARKETING AND DISTRIBUTION

    The Company sells its mobile communication and information system to 
fleet buyers primarily through its direct sales force located throughout the 
nation. National marketing support for the sales teams includes print 
advertising in industry journals, direct mail, radio networks popular with 
truckers, industry trade shows and on-site marketing promotions.  The Company 
sponsors a racing team on the Sports Car Club of America (SCCA) Trans-Am Tour 
and entertains trucking company executives in its hospitality trailer at 
races. The Company's goal for its sales, service and distribution network is 
to establish a high level of responsiveness and convenience.

CUSTOMER SERVICE AND WARRANTY

   HighwayMaster operates a 24-hour, seven days a week customer support 
service center to handle customer questions and requests. Regional 
installation and customer service offices have been established in Atlanta, 
Chicago, Dallas, Philadelphia and Salt Lake City. In addition, HighwayMaster 
assigns account service representatives to each account of 20 or more trucks 
to give personalized training and to assist in configuring the system to 
provide the greatest possible economic impact. A one-year limited warranty is 
provided to all purchasers of Mobile Communications Units, inclusive of 
parts, labor and diagnostic work.

   The Company has trained personnel in authorized service centers to perform 
installations and warranty of Mobile Communication Units at locations 
nationwide, with additional locations to be activated pending training. 
Independent contractors in strategic locations throughout the United States 
have also been trained to perform installations, charging a fixed rate for 
each Mobile Communication Unit installed.

                                     11

<PAGE>

CURRENT INSTALLED BASE

    The number of Mobile Communication Units installed in customer vehicles has
grown steadily since commercial operations began in September 1993.

    As of December 31, 1996, the Company had installed approximately 20,354 
Units (including 478 Units installed on a test basis), and had orders to 
install an additional 12,584 Units (including approximately 1,333 units to be 
installed upon successful completion of test programs).  Not included in 
these orders are approximately 3,000 Units that may be ordered by Wal*Mart 
Stores Inc. in the event of a successful completion of their test currently 
underway on 353 Units.  The Company's order backlog is based on signed 
contracts, which do not specify delivery dates. Accordingly, in some cases 
the timing of installation is uncertain, and the Company expects that not all 
of the Units on order at December 31, 1996 will necessarily be shipped and 
installed within the next twelve months.  Since July 1, 1996, the Company has 
offered mobile communications services to its customers under the terms of a 
service contract which generally commit the Company to provide services for 
one year.  Customers typically may terminate their contracts during the 
initial term only in the event of a material breach by the Company.  At the 
expiration of the initial term, the contracts continue in effect on a 
month-to-month basis unless terminated upon 30-days' notice by either party.

    Prior to June 29, 1996, the Company and AT&T offered mobile communications
services to their customers under the terms of joint service contracts, signed
by the Company, AT&T and their joint customers.  Customer contracts generally
commit the Company and AT&T to provide services for a one-year term, but in some
cases contracts entered into before July 1994 commit the Company and AT&T to
provide services for a five-year term.  Customers typically may terminate their
contracts during the initial term only in the event of a material breach by
either the Company or AT&T.  At the expiration of the initial term, the
contracts continue in effect on a month-to-month basis unless terminated upon 30
days notice by either party.

                                     12

<PAGE>

AT&T invoices customers directly for all enhanced telecommunications and
cellular services, and the Company and AT&T generally may raise their rates
upon 30 days notice.

ADDITIONAL GROWTH OPPORTUNITIES

    AUTOLINK.  In the fourth quarter of 1996, HighwayMaster entered into a
strategic business alliance with Prince ("Prince") to develop and provide
AutoLink-Registered Trademark- service for motorists in the United States and
Canada.  The basic AutoLink product will provide an intelligent communications
link from the car to an information services complex in order to provide
emergency assistance, roadside assistance and information services to the
occupants of the car, including remote tracking of stolen or missing vehicles.
The intelligent mobile unit in the car is to be equipped with a GPS (global
positioning system) receiver, processor, modem, and a wireless transceiver.
HighwayMaster will be responsible for managing the network, providing software
for the intelligent mobile unit, assisting in managing various information
services providers and billing the customer.  Prince and Motorola,
which is slated to manufacture the hardware, are currently involved with product
demonstrations and integration projects with several automakers and production
of the AutoLink product is expected to begin in early 1998.

    The AutoLink business alliance is currently in its preliminary stages.  
In January 1997,  HighwayMaster and Prince entered into a joint development 
and marketing agreement defining their respective roles and responsibilities 
with respect to the AutoLink system.  To date, HighwayMaster has not signed a 
definitive agreement with Motorola regarding its role in the business 
alliance. At the present time it is contemplated that HighwayMaster will not 
be a party to such an agreement, relying instead on Prince to negotiate and 
sign a contract with Motorola or another hardware supplier.  Various future 
events or capabilities must occur or be further developed in order for the 
AutoLink alliance to proceed as planned.  These include such events as the 
exercise by cellular carriers of their option to offer this service to 
consumers, the placement of orders by sufficient numbers of automakers, the 
testing of final versions of the software and hardware and the production of 
the AutoLink product in mass quantities.  If any of these or similar events 
fail to occur, there can be no assurance that the AutoLink alliance will 
proceed on the basis described herein, if at all. In addition, certain other 
companies are already offering services similar to AutoLink, including 
"OnStar" by General Motors Corporation and "Lincoln Rescue" by Ford Motor 
Company, which could create substantial competition for the AutoLink business 
alliance.

    BURLINGTON CONTRACT.  In 1997, HighwayMaster entered into a memorandum of 
understanding with Burlington Motor Carriers ("Burlington"), one of the 
largest truckload carriers and logistics providers in North America, which 
contemplates the installation of 2,000 Mobile Communication Units in 
Burlington's fleet of long-haul trucks.  As part of

                                     13

<PAGE>

the transaction, the Company would purchase exclusive ownership rights to 
Burlington's proprietary fleet operating and management information software 
and assume the operation of its data center and computer systems.  If the 
transactions with Burlington are completed, HighwayMaster intends to add 
capacity to the Burlington data center in order to provide a broad range of 
data processing services to other trucking companies which would essentially 
replace such companies' existing management information systems department 
with services, software and hardware to be provided by HighwayMaster.  Added 
capacity would enable HighwayMaster to use the Burlington software and data 
center in conjunction with the HighwayMaster mobile communications system to 
offer its customers levels of integration not previously available in the 
trucking industry.  HighwayMaster is currently negotiating the terms of a 
definitive agreement with Burlington, and there can be no assurance that such 
agreement will be reached by the parties on the terms described herein, if at 
all.  HighwayMaster is not currently providing these services, and there can 
be no assurance that it will be successful in marketing its information 
management solutions to other trucking companies.

    OTHER OPPORTUNITIES.  The Company believes that substantial expansion 
opportunities exist within international markets that are served by cellular 
service. The Company currently provides certain mobile communications 
services to Canadian-based operators who provide a remote call forwarding 
line (also known as a foreign exchange line) from their dispatcher PC to the 
United States. The Company's ability to provide such services to 
owner-operators and operators of small fleets in Canada is limited given that 
they cannot easily afford the expense of a remote call forwarding line. There 
are approximately 200,000 larger-size trucks operating in Canada, many of 
which travel extensively in the United States. Mexico offers another avenue 
for expansion if agreements with cellular carriers and installation of 
necessary infrastructure interfaces can be established. There are 
approximately 250,000 medium and larger sized trucks and buses operating in 
Mexico. Management believes that expansion into Europe may prove to be viable 
for the Company because trucking companies in Europe face many of the same 
demands as companies in the United States and the European cellular 
infrastructure is highly developed. However, engineering changes would be 
necessary to build a HighwayMaster system adapted to European cellular 
technology and multiple languages. A data-only satellite-based competitor of 
the Company currently is operating in Europe, Japan and certain other 
developed countries.

    The most recent Truck Inventory and Use Survey published by the United 
States Census Bureau indicated that in 1992 there were 2.6 million medium and 
heavy commercial trucks in the United States, presumably operated primarily 
by regional and local carriers. Future refinements, which may eventually 
provide city street map detail, should allow the HighwayMaster system to be 
used by intra-city courier services, local bus companies and police, fire and 
ambulance services. In addition to these software enhancements, it will be 
necessary for the Company to revise its working relationships with the 
affected local cellular carriers before the Company attempts to expand its 
customer base to include localized intra-city users and to provide certain 
changes to its Company Complex to service a more localized market.  See "-- 
Infrastructure --Enhanced Service Complexes."


    In addition to the mobile communications services currently provided by the
Company to the long-haul trucking industry, the Company is developing and
intends to market additional wireless voice and data solutions, network
services, logistics software and wireless computer communications devices to
other freight and field service operations on a local and national basis (some
of which may require modifications to equipment and existing contracts with
cellular carriers and other parties). Management has identified several
potential markets, some of which would require modification to the Mobile
Communication Unit or

                                     14

<PAGE>

HighwayMaster system's infrastructure. For example, management believes the
Company could develop an additional market opportunity in the tracking and
dispatching of commercial trailers, which numbered 3.8 million in the United
States in 1992. Trailers would not require two-way voice communication, so a
lower cost version of the Mobile Communication Unit could be developed.


    Management also believes interstate bus companies could benefit from the 
HighwayMaster system in its present configuration in order to contact drivers 
to bypass small town bus stops with no passengers for pickup. The Company 
also intends to market the HighwayMaster system to railroads for use in 
locomotives and railcars. In addition, management believes that the more than 
5 million recreational vehicles in the United States constitute a potential 
market for the Company's services.

COMPETITION

    Although the Company believes the HighwayMaster system is the most complete
and cost-effective package of mobile communication services currently available
to the trucking industry, there are a number of other companies that offer or
plan to offer some form of two-way mobile communication using a variety of
different technologies which may be eventually used by long-haul truckers. These
companies primarily utilize satellite-based communications technologies, SMR,
and enhanced specialized mobile radio (ESMR), and satellite-based communications
technologies.

    CONVENTIONAL SATELLITE COMMUNICATIONS.  Satellite communication is
accomplished through transmission of a signal from an earth-based transmitter to
a satellite, which automatically retransmits the signal to an earth-based
receiver. Many communication satellites are geo-stationary, and remain over a
single point over the equator by orbiting the earth in the same direction and at
the same speed as the rotation of the earth. Mobile equipment designed for
satellite communication is equipped with highly specialized rotating antennae
which are continuously directed toward the satellite, and utilize highly complex
data or voice compression systems to minimize demands on satellite capacity.
This type of mobile communication equipment broadcasts over the radio frequency
spectrum, and the FCC regulates and limits the number of satellite
communications systems that may be placed in service.

    Satellite communication available to the transportation industry generally
utilizes a single earth station to transmit and receive data via satellite to
and from mobile units installed in trucks. Messages created by truck drivers on
an onboard keyboard can be stored, compressed and transmitted in short bursts.
Although voice communication is theoretically possible for mobile communication
systems that utilize satellite transmissions, to date the limited capacity and
high cost of satellite communication have tended to limit offerings to data-only
services.

    Satellite systems currently cover 100% of the continental United States,
and their comprehensive coverage may be perceived by truckers and trucking
companies as an advantage over the cellular system. The Company believes that
any marketing or operational advantage derived from satellite coverage, as
compared to the HighwayMaster system (which covers approximately 95% of the
United States interstate highway system), is mitigated by the fact that
satellite systems are more costly and do not currently offer voice communication
on an economical basis and by the fact that users experience queuing delays
during peak periods between transmission and receipt of messages.  In addition,
because geo-stationary satellites stay over the equator, transmission and
receipt of data in North America is sometimes interrupted or rendered impossible
by obstacles on the southern horizon, such as nearby tall buildings or
mountains.

                                     15

<PAGE>

    At the present time, the Company's primary satellite competitor in the 
long-haul trucking market is Qualcomm, Inc. ("Qualcomm"). Qualcomm, which 
markets its products and services primarily to large fleets, offers two 
international satellite-based communication systems called OmniTRACS, which 
provides two-way data messaging and tracking services, and TrailerTRACS, 
which provides trailer monitoring. Drivers access and utilize the system 
through an onboard keyboard and data display screen. Qualcomm offers or plans 
to offer its products and services in certain of the international markets 
targeted by the Company, including Canada, Mexico and Europe. Qualcomm 
reported that as of January 1997 it had delivered over 200,000 mobile 
communication units worldwide. The Company believes that the satellite-based 
communication products and services offered by Qualcomm are generally more 
expensive than the Company's products and services. However Qualcomm has 
recently offered lower prices for quantity purchases and reduced-cost trial 
periods in an effort to improve its competitiveness. 

    At least one other entity offers or plans to offer satellite-based data
communication and tracking services to the long-haul trucking industry. 
AMSC, a geo-stationary system which is owned by a consortium of satellite 
and communications companies offers a satellite-based system that is similar 
to the Qualcomm system in that the mobile communications equipment consists 
of a keyboard and data screen mounted in each truck. Recent enhancements 
allow dual SMR or satellite communication in a single unit. The AMSC system 
will include voice communications services, although projected voice air time 
rates are substantially higher than the Company's rates.

    MIDDLE AND LOW EARTH ORBIT SATELLITES.  In order to maintain a stationary
position over the earth, communication satellites currently in use must maintain
a very high orbit, which requires earth stations to generate relatively high
powered transmissions for communication with the satellite. Certain entities,
including Qualcomm, are participating in the development of MEO and LEO
satellite networks, which are designed to employ multiple satellites in
relatively lower earth orbits, rapidly circling the earth. The lower earth
orbits should facilitate both voice and data communication services and will be
accessible through relatively lower powered transmitters and receivers, allowing
them to be installed in portable communication equipment. In terms of product
and service offerings, MEO and LEO systems can be expected to compete directly
with cellular services, including the HighwayMaster products and services, and
will offer coverage in remote areas and foreign countries currently unserved by
cellular carriers. However, due to the substantial capital investment required
to place these systems in service, the MEO and LEO-based voice call rates are
expected to be substantially higher than the $0.53 per minute rate charged to
HighwayMaster's customers.

    SPECIALIZED MOBILE RADIO.  SMR has traditionally been used to serve the
needs of local dispatch services such as taxis and couriers, which typically
broadcast short messages to a large number of units. SMR wireless communication
systems rely on high-powered voice or data transmissions among widely-spaced
receiver/transmitter sites within a discrete local or regional area. These
systems generally have lower capacity to support simultaneous transmissions in a
given area than do cellular systems, which transmit and receive radio
communications from numerous closely-spaced cell sites. The radio hardware
currently used to operate

                                     16

<PAGE>

the various SMR systems varies widely, making it impossible for a customer to
"roam" into a neighboring region that is served by a carrier with a different
hardware configuration.

    ENHANCED SPECIALIZED MOBILE RADIO.  Several regional SMR operators are
currently developing and implementing ESMR digital technology to offer
relatively low-cost mobile telephone services, with construction expected to be
completed in several years. One operator in particular, Nextel, Inc., has
announced acquisitions of other ESMR operators to further increase its coverage
area. Many of the ESMR providers intend to rely on proprietary hardware and
technology developed by Motorola. If the various local and regional ESMR
operators develop uniform standards and a coordinated infrastructure, they
eventually will be able to offer region-to-region calling and call delivery
services which could compete with the Company's services.

    PAGING SERVICES.  At considerably less cost than full two-way mobile 
communication, several long-haul truckers and fleet operators have purchased 
or leased paging systems that allow a dispatcher to send a message to a 
driver. Management believes that pagers are used by trucking companies as a 
"temporary fix," since pagers do not offer full-function two-way 
communications services and cannot track vehicle locations. Some paging 
companies have begun to offer limited time-delayed two-way messaging 
capabilities, although initial shortcomings in coverage, voice service and 
tracking capabilities are likely to limit their use in the long-haul trucking 
market.

    TELECOMMUNICATIONS ACT OF 1996.  The Telecommunications Act of 1996 (the
"Telecommunications Act") encourages competition in virtually every arena of
communications and eliminates many regulatory barriers to new competitors.  See
"Risk Factors -- Uncertainty of Government Regulation".  It is unknown at this
time what effect this legislation will have on the Company's ability to compete
in the marketplace.

PATENTS AND PROPRIETARY TECHNOLOGY

    The Company has obtained nine domestic patents and has applied for
additional domestic and foreign patents relating to the Mobile Communication
Units and communications network. In general, the Company's existing patents
relate to certain functions of the HighwayMaster system for locating and
communicating with vehicles utilizing the cellular communications network. The
Company's software is also entitled to certain protections under state trade
secret law and federal copyright law. In connection with the recapitalization,
the Company assumed By-Word Technology, Inc.'s ("By-Word") rights and
obligations under a certain License Agreement, dated as of April 23, 1992,
between By-Word and Voice Control Systems ("VCS"). Pursuant to the License
Agreement, the Company has a license to use VCS' speech recognition technology
in exchange for royalties of $15,000 plus certain per-item fees for each
12-month period. Such royalties may be adjusted based on the current consumer
price index. The term of the contract ends annually in August, and the Company
has an option to renew for successive 12-month periods until the year 2001.

                                     17

<PAGE>

REGULATION

    The Company's products and services are subject to various regulations 
promulgated by the FCC which apply to the wireless communications industry 
generally. The Company's Mobile Communication Units must meet certain radio 
frequency emission standards and not cause unallowable interference to other 
services. The Company has relied on the manufacturer of the cellular 
transceiver component of the Mobile Communication Units, which is currently 
Motorola, to carry out appropriate testing and regulatory compliance 
procedures regarding the radio emissions of the cellular transceiver 
component.

    The FCC also controls several other aspects of the wireless industry that
affect the Company's ability to provide services. The FCC controls the amount of
radio spectrum available to cellular carriers, which could eventually limit
growth in cellular carrier capacity. Management expects the FCC to expand
capacity available to the cellular industry as it becomes necessary in order to
maintain current levels of service, although there is no assurance that such
expansion will occur.

    The Company believes that the nature of its services does not require that
the Company be classified as a common carrier for either wireless or
long-distance regulatory purposes. This conclusion is based on several
alternative regulatory interpretations, such as classification of the Company as
an enhanced services provider or a private network and the reliance on the
Company's long-distance provider to comply with any applicable long-distance
regulatory requirements. However because of the unique structure of the
Company's network and its relationship with existing telecommunications
providers, the Company does not fit clearly into any of the various wireless
regulatory categories established to date. Furthermore, because of ongoing
regulatory change in the wireless arena, the Company is engaging in continual
re-evaluation and examination of laws and regulations applicable to its
operations. If the Company's current interpretation of its regulatory status
proves to be incorrect and it were deemed to be a common carrier, the Company
may be required to offer its services on a non-discriminatory basis and, in
certain states, comply with various other regulatory procedures, including the
filing of informational tariffs. Upcoming regulation of cellular common carriers
may also require equal access by customers to the long-distance provider of
their choice. Although regulations applicable to common carriers would add
certain administrative costs and possible complications in the Company's
relationships with its long-distance provider and cellular carriers, the Company
believes common carrier status would not require the Company to make substantial
changes to its current services. There can be no assurance, however, that any
necessary changes could be accomplished without a material adverse effect on the
Company's results of operations.

    Long-distance providers face regulatory schemes similar to cellular 
carriers, with greater state involvement in requiring posting of bonds as 
security against customer deposits and in other matters. The Company believes 
current long-distance regulations apply to the companies providing 
long-distance services directly to Company customers, without long-distance 
regulatory involvement by the Company.

EMPLOYEES

    As of December 31, 1996 the Company employed approximately 295 individuals,
of whom 47 are engaged in engineering and product development, 119 in customer
service, 59 in sales and marketing and 70 in administrative or executive
functions. None of the Company's employees are represented by a labor union and
management considers its relationship with its employees to be generally good.

                                     18

<PAGE>

RECENT FINANCING TRANSACTIONS

SBW TRANSACTIONS

    On September 27, 1996, the Company (i) sold 1,000 shares of its Series D
Participating Preferred Stock, par value $.01 per share ("Series D Preferred
Stock"), to Southwestern Bell Wireless Holdings, Inc. ("SBW") in exchange for a
payment of $20.0 million in cash and (ii) issued warrants (the "Warrants") to
SBW that initially entitle it to purchase an aggregate of 5,000,000 shares of
common stock, par value $.01 per share ("Common Stock"), of the Company.

    The shares of Series D Preferred Stock issued to SBW are initially
convertible into an aggregate of 1,600,000 shares of Common Stock at the option
of SBW.  In addition, at such time as SBW and its affiliates obtain certain
Regulatory Relief (as defined herein), all of the outstanding shares of Series D
Preferred Stock will automatically convert into an equal number of shares of
Class B Common Stock, par value $.01 per share ("Class B Common Stock"), of the
Company.  The holders of shares of Series D Preferred Stock are entitled to
receive dividends and distributions equal to the dividends and distributions
payable on the number of shares of Common Stock into which such shares are
convertible.  Except as required by law and except in connection with the
approval rights granted to the holders of Series D Preferred Stock with respect
to specified transactions, the holders of Series D Preferred Stock are not
entitled to vote on any matters submitted to the stockholders of the Company.

    The Warrants entitle SBW to purchase from the Company (i) 3,000,000 shares
of Common Stock at an exercise price of $14.00 per share and (ii) 2,000,000
shares of Common Stock at an exercise price of $18.00 per share, in each case
subject to adjustment to prevent dilution.  The Warrants will expire on
September 27, 2001.

RECAPITALIZATION TRANSACTIONS

    On September 27, 1996, in conjunction with the transactions consummated 
with SBW, the Company entered into a Recapitalization Agreement (the 
"Recapitalization Agreement") with the Erin Mills Stockholders (as defined 
herein), the Carlyle Stockholders (as defined herein) and certain other 
holders of outstanding securities of the Company.  Upon the terms and 
conditions set forth in the Recapitalization Agreement, (i) the Company 
issued an aggregate of 800,000 shares of Common Stock to two Erin Mills 
Stockholders in exchange for aggregate cash payments in the amount of $10.0 
million, (ii) the Company issued an aggregate of 864,000 shares of Common 
Stock to three Erin Mills Stockholders and two other persons in exchange for 
the surrender to the Company for cancellation of all outstanding shares of 
Series B Preferred Stock, par value $.01 per share, of the Company, (iii) the 
Company paid to the Carlyle Stockholders a portion of the accrued and unpaid 
interest on certain promissory notes in the aggregate principal amount of 
approximately $12.7 million (the "Carlyle Notes") executed in favor of the 
Carlyle Stockholders, and (iv) the Company issued an aggregate of 1,018,018 
shares of Common Stock in exchange for the surrender of the Carlyle Notes for 
cancellation.  As used herein, (a) the term "Erin Mills Stockholders" means 
Erin Mills International Investment Corporation, The Erin Mills Development 
Corporation and The Erin Mills Investment Corporation, (b) the term "Carlyle 
Stockholders" means the Clipper Stockholders (as defined below), 
Carlyle-HighwayMaster Investors, L.P., Carlyle-HighwayMaster Investors II, 
L.P., TC Group, L.L.C., Mark D. Ein, Chase Manhattan Investment Holdings, 
Inc., H.M. Rana Investments Limited, Archery Partners, and (c) the term 
"Clipper Stockholders" means Clipper Capital Associates, L.P., 
Clipper/Merban, L.P. and Clipper/Merchant Partners, L.P.

                                     19

<PAGE>

RISK FACTORS

FORWARD LOOKING STATEMENTS

    This Annual Report on Form 10-K ("Form 10-K") contains forward-looking
statements within the meaning of Section 27A of the Securities Act and Section
21E of the Exchange Act that are based upon management's beliefs, as well as
assumptions made by and information currently available to management.  When
used in this Form 10-K, the words "anticipate," "believe," "estimate" or
"expect" and similar expressions are intended to identify forward-looking
statements.  The Company's actual results could differ materially from those
projected in the forward-looking statements.  Factors that could cause or
contribute to such differences include those discussed in this section, as well
as those discussed elsewhere in this Form 10-K or in the documents incorporated
herein by reference.

LIMITED OPERATING HISTORY; HISTORY OF LOSSES

    The Company commenced its operations in April 1992 and has a limited
operating history.  The Company began offering the HighwayMaster system on a
commercial basis in September 1993.  Since its inception, the Company has
experienced significant operating losses.  In particular, the Company
experienced operating losses of $19.1 million, $22.2 million and $28.6 million
in the years ended December 31, 1994, 1995 and 1996, respectively.  As of
December 31, 1996, the Company had an accumulated deficit of $109.9 million.  In
order to achieve a profitable level of operations, the Company must
significantly increase its installed base of Mobile Communication Units and
generate greater service and air time revenues.  Although the Company's
installed base of Mobile Communications Units has increased significantly in
each of the past three years, the number of Units sold by the Company decreased
from 9,322 in the year ended December 31, 1995 to 7,038 in the year ended
December 31, 1996, as a result of various factors, including concerns on the
part of prospective customers relating to the Company's financial condition
during the first three quarters of 1996 and uncertainties related to the
termination effective June 29, 1996 of the Company's contract with AT&T relating
to the design and operation of the AT&T Complex.  The likelihood of the
long-term success of the Company must be considered in light of the expenses,
difficulties and delays frequently encountered in connection with the early
stages of the development and marketing of telecommunications products and
services, as well as the competitive environment in which the Company operates
and the other risks and uncertainties discussed in this section. There can be no
assurance that the Company's future operations will generate operating or net
income.

STATUS OF AT&T CONTRACT; NETWORK SERVICES CENTER

    From 1993 to 1996, the Company and AT&T were parties to the AT&T Contract
pursuant to which AT&T provided enhanced call processing and data management
services and long-distance network transport for the Company and its customers
through the AT&T Complex.  AT&T terminated the AT&T Contract effective as of
June 29, 1996.  However, AT&T continues to provide services for existing
customers of the Company and AT&T without a formal contract in fulfillment of
AT&T's obligations under existing service agreements entered into with each
customer.  At the present time, a substantial majority of the Company's
customers are receiving services provided through the AT&T Complex.  In order
for the Company and AT&T to continue to provide services to these customers, it
will be necessary for them to cooperate with respect to a number of operational
and other matters.  There can be no assurance that the Company and AT&T will
cooperate with respect to these matters or that AT&T's failure or refusal to
cooperate on terms

                                     20

<PAGE>

acceptable to the Company would not have a material adverse effect on the 
Company's business, financial condition or results of operations. 

    In the third quarter of 1996, the Company began commercial service with 
its own switching complex, the NSC, which was designed and constructed for 
the Company by IEX.  For new customers commencing service since July 1, 1996, 
the NSC has fully replaced the AT&T Complex.  The future growth of the 
Company's business will depend to a significant on its ability to continue to 
expand the NSC and to resolve technical and operational issues which may 
arise from time to time in connection with the operation, management and 
expansion of a switching complex of this complexity. 

OPERATIONAL DIFFICULTIES

    Under the terms of the AT&T Contract, AT&T was obligated to maintain the 
AT&T Complex in operational status.  However, from inception of service, the 
AT&T Complex experienced various service impairments, including occasional 
"downtime" periods ranging from several minutes to several hours in duration. 
In general, although in recent months AT&T has made modifications to the AT&T 
Complex which are intended to improve its performance, there can be no 
assurance that the AT&T Complex will not experience performance problems in 
the future.  

    As noted above, the NSC began commercial service in the third quarter of 
1996.  Other than the normal operational issues encountered in placing in 
service a complex facility of this type, the addition of new customers to the 
NSC has been progressing in an orderly fashion.  However, there also can be 
no assurance that the NSC will not experience performance and other 
operational problems in the future.  

    Any significant performance or other operational problems affecting 
either the AT&T Complex or the NSC could have a material adverse effect on 
the Company's business, financial condition and results of operations.

AT&T LITIGATION

    On February 16, 1996, the Company filed a lawsuit against AT&T in the 
U.S. District Court, Northern District of Texas, Dallas Division.  The 
Company is seeking preliminary and permanent injunctive relief restraining 
AT&T from using and disclosing the Company's trade secrets and proprietary 
information relating to its mobile communications technology.  In July 1996, 
AT&T filed counterclaims essentially mirroring the Company's claims.  

    In September and October 1996, both the Company and AT&T amended their 
pleadings and filed additional claims against each other related to breach of 
contract and various tortious activities.  AT&T seeks an injunction, a 
declaratory judgment defining the parties' intellectual property rights, 
actual and punitive damages and attorneys' fees in connection with its 
counterclaims. The Company seeks a declaration that the patents issued to 
AT&T using the Company's proprietary information are invalid or, 
alternatively, should be transferred from AT&T to the Company.  The Company 
also brought claims against AT&T pursuant to the Texas Deceptive Trade 
Practices Act ("DTPA") and seeks actual, punitive and treble damages and 
attorneys' fees in connection with its claims. Additionally, the Company's 
amended complaint added another defendant, Lucent Technologies, Inc. 
("Lucent"), to which AT&T transferred certain of the patents at issue in the 
lawsuit.  

                                     21 
<PAGE>

    In November 1996, AT&T filed a partial motion to dismiss the Company's 
DTPA claims, various tort claims and the patent invalidity charges.  
Additionally, in November 1996, Lucent filed a motion to dismiss all of the 
Company's claims against Lucent.  In December 1996, the Company filed a 
response to AT&T's partial motion to dismiss and a response to Lucent's 
motion to dismiss.  A hearing on the parties' motions is currently scheduled 
for May 1997.

DEPENDENCE ON CELLULAR INFRASTRUCTURE

    The Company utilizes the existing cellular telephone infrastructure, with 
certain enhancements, as the wireless segment of the HighwayMaster 
communications link. Current terms of contracts between the Company and each 
of its cellular carriers are generally for one year, with automatic one-year 
successive renewal terms, unless either party elects to terminate the 
contract upon 30-days' notice prior to June 30 of each year. In order to 
continue to provide wireless communications to its customers, the Company 
must continue to renew its agreements with individual cellular carriers. If 
the Company is unable to renew or replace its contracts with cellular 
carriers at competitive rates, the Company may be forced to absorb the costs 
of increased cellular air time rates, or increase rates to customers where 
allowed by individual contracts. In general, a failure on the part of the 
Company to renew or replace its contracts with cellular carriers on favorable 
terms could have a material adverse effect on its business, financial 
condition and results of operations. 

    The HighwayMaster system relies on the continued interconnectivity of its 
cellular service providers. Currently, cellular carriers utilize analog 
technology, although an increasing number of carriers have upgraded or are 
in the process of upgrading their service to digital technology. If in the 
future cellular carriers do not continue to offer service to analog 
telephones, the Company would be required to dedicate financial resources and 
engineering staff to integrate a digital cellular telephone transceiver into 
the Mobile Communication Unit. Furthermore, if substantial changes to the 
methods of interconnection utilized by cellular carriers occur, such as a 
discontinuance of the existing out-of-area call clearing system or a decision 
by cellular carriers to eliminate analog service and employ several diverse 
digital technologies rather than a common digital technology, the Company may 
be required to undertake costly system redesign or may encounter difficulty 
in providing seamless nationwide coverage. 

DEPENDENCE ON CLEARINGHOUSE SERVICES

    GTE-TSI performs certain "clearinghouse" functions for the Company, which 
include, among other things, validation and verification of roaming numbers 
and provision of call delivery information. The Company's agreement with 
GTE-TSI is effective through March 14, 1998, with certain renewal options by 
the Company after that date. The agreement provides for mutual exclusivity in 
the trucking industry for the initial three-year term with respect to certain 
key call delivery features. The agreement with GTE-TSI may be renewed by the 
Company for up to 10 additional one-year terms after expiration at a 
reasonable price to be determined solely by GTE-TSI. There can be no 
assurance that the renewal price determined by GTE-TSI after the initial 
three-year term will be acceptable to the Company. 

    A subsidiary of EDS also performs certain "clearinghouse" functions for 
the Company which include, among other things, the validation of roaming 
numbers and routing of call delivery information. The agreement with EDS 
expires on July 15, 1998 with successive automatic renewal terms of one year 
thereafter, unless terminated at the option of either party upon 60-days' 
notice prior to any expiration date. There can be no assurance that the EDS 
agreement will be renewed upon expiration. 

                                     22 
<PAGE>

    If the Company is unable to renew its agreement with GTE-TSI or, to a 
lesser extent, EDS, the Company may be required to make substantial and 
costly design changes to the HighwayMaster system in order to ensure 
continued availability of the Company's services. Because of the unique 
position of GTE-TSI and EDS as industry-wide clearinghouses and the 
difficulty associated with their replacement, there can be no assurance that 
full functionality of the system could be maintained if such a redesign were 
necessitated.

PRODUCT SUPPLY ARRANGEMENTS

    Since the fourth quarter of 1996, Sanmina has manufactured Mobile 
Communications Units in accordance with specifications provided by the 
Company. Although all of the Units sold by the Company are currently being 
produced by Sanmina, the Company  is continuing to evaluate its options with 
respect to the production of Units.  There can be no assurance that 
HighwayMaster will be able to continue its current supply arrangements with 
Sanmina or establish alternative supply arrangements with other third parties 
without experiencing technical, logistical or other difficulties.  The 
failure to establish or maintain satisfactory arrangements for the production 
of Units could have a material adverse effect on the Company's business, 
financial condition and results of operations.

LACK OF CAPITALIZATION AND OTHER RESOURCES REQUIRED FOR GROWTH

    The expansion of the Company's business over the past few years has 
placed a significant strain on its management, operational and financial 
resources. The Company's ability to achieve future growth is dependent, among 
other things, upon its ability to raise sufficient capital to fund the 
expansion of its business.  Based on its projected operating results, the 
Company believes that it is likely that it will need to secure additional 
equity or debt financing during 1997 in order to fund its currently 
anticipated operating needs and capital expenditure requirements.  In 
addition, the Company must maintain its inventories of Mobile Communications 
Units at appropriate levels and must expand the capacity and increase the 
efficiency of its sales, distribution and installation network.  If the 
Company is not able to obtain adequate financial resources or otherwise 
manage growth effectively, the Company's business, financial condition and 
results of operation may be adversely affected.

AMENDED STOCKHOLDERS' AGREEMENT; CONTROL OF THE COMPANY

    The Company, SBW, the Erin Mills Stockholders, the Carlyle Stockholders, 
the By-Word Stockholders and certain other persons are parties to an Amended 
and Restated Stockholders' Agreement, dated as of September 27, 1996 (the 
"Amended Stockholders' Agreement") which amends and restates in its entirety 
the Stockholders' Agreement dated February 4, 1994.  The parties to the 
Amended Stockholders' Agreement beneficially own an aggregate of 19,625,129 
shares of Common Stock, representing approximately 79.0% of the shares 
outstanding as of December 31, 1996.

    The Amended Stockholders' Agreement contains provisions relating to, 
among other things, the election of members of the Company's Board of 
Directors.  In particular, this agreement provides that the parties will take 
all action (including the voting of shares of Common Stock owned by them) 
necessary to ensure that the Board of Directors of the Company consists of 
(i) two directors designated by the Erin Mills Stockholders, (ii) one 
director designated by the Carlyle Stockholders, (iii) two directors 
designated by the By-Word Stockholders and (iv) two independent directors 
(except that the addition of a second independent director to the Board of 
Directors need not occur until the date of the 1997 annual meeting of the 
stockholders of the Company).  Prior to the receipt of regulatory relief 
permitting SBW to 

                                     23 
<PAGE>

provide landline, interLATA long-distance service pursuant to the 
Communications Act of 1934, as amended by the Telecommunications Act 
("Regulatory Relief"), SBW will not be entitled to designate a director, but 
will have the right to designate a non-voting delegate who will attend all 
meetings of the Board of Directors and receive all materials distributed to 
directors of the Company.  In addition, if SBW and its affiliates 
beneficially own 20% or more of the outstanding Common Stock on a fully 
diluted basis (including shares issuable upon conversion or exercise of 
outstanding options, warrants or rights, but excluding shares issuable upon 
the conversion or exercise of the Warrants or of options, warrants or rights 
issued by any person other than the Company), SBW will under certain 
circumstances be entitled to designate a second member of the Board of 
Directors.  

     As a result of the provisions of the Amended Stockholders' Agreement and 
the ownership of Common Stock by the stockholders of the Company who are 
parties thereto, these stockholders, if they choose to act together, have the 
ability to control the management and policies of the Company. 

COMMON STOCK AVAILABLE FOR PURCHASE BY SBW

    Pursuant to a Purchase Agreement dated September 27, 1996 (the "Purchase 
Agreement"), and certain agreements and instruments related thereto, the 
Company issued to SBW (i) 1,000 shares of Series D Preferred Stock and (ii) the 
Warrants. The shares of Series D Preferred Stock issued to SBW are initially 
convertible into an aggregate of 1,600,000 shares of Common Stock at the 
option of SBW.  The Warrants generally entitle SBW to purchase from the 
Company (i) 3,000,000 shares of Common Stock at an exercise price of $14.00 
per share and (ii) 2,000,000 shares of Common Stock at an exercise price of 
$18.00 per share, in each case subject to adjustment to prevent dilution.  If 
all of the shares of Series D Preferred Stock were converted into Common 
Stock and all the Warrants were exercised by SBW, SBW would hold 
approximately 26.6% of the outstanding shares of Common Stock (based on the 
total number of shares of Common Stock outstanding as of December 31, 1996). 
See "Recent Financing Transactions -- SBW Transactions."

CERTAIN RIGHTS OF SBW

    The Purchase Agreement and certain of the other agreements and 
instruments related thereto afford various rights to SBW that are not 
available to the other stockholders of the Company.  For example, the Company 
has granted to SBW, as the holder of Series D Preferred Stock, the right to 
approve certain actions on the part of the Company, including (i) mergers or 
consolidations involving the Company that require stockholder approval under 
the General Corporation Law of the State of Delaware (the "DGCL"), (ii) sales 
of all or substantially all of the assets of the Company that require 
stockholder approval under the DGCL, (iii) amendments to the Company's 
Certificate of Incorporation, (iv) the dissolution of the Company, (v) the 
adoption, implementation or acceptance by the Company of certain 
anti-takeover provisions, (vi) the issuance by the Company of equity 
securities, including securities convertible into equity securities (subject 
to specified exceptions), and the incurrence by the Company of debt 
obligations in an amount exceeding $5.0 million in any year, (vii) the 
Company entering into any line of business other than it existing line of 
business or entering into joint ventures, partnerships or similar 
arrangements which would require expenditures of more than $3.0 million, 
(viii) the disposition by the Company in any 12-month period of assets (other 
than assets sold in the ordinary course of business) of which the fair market 
value exceeds $3.0 million and (ix) any amendment, alteration or repeal of 
the terms of the Series D Preferred Stock.  See "Recent Financing 
Transactions -- SBW Transactions."

                                     24 
<PAGE>

COMPETITION AND TECHNOLOGICAL CHANGE

    The Company faces competition in the long-haul trucking industry from 
various other suppliers of mobile communications services. Currently, the 
Company's primary competitors in the long-haul trucking market offer 
data-only, two-way communications via satellite. Other companies that compete 
or are planning to compete with the Company in its target market also offer 
or plan to offer satellite-based voice and data communication systems. The 
primary advantage of satellite-based communication over the Company's 
cellular-based system is that satellite coverage is available in certain 
remote areas and foreign countries that have not developed cellular networks, 
enabling data transmissions in areas not served by cellular systems. 

    Certain technological advances and future product offerings could 
substantially change the nature of the Company's competition. For example, 
geo-stationary orbit, MEO and LEO satellite systems are expected to offer 
voice and data communications that could compete directly with existing 
cellular-based services, including the HighwayMaster system. One of the 
Company's current competitors, AMSC, launched a geo-stationary satellite in 
early April 1995 and offers both data and voice communications to the 
long-haul trucking industry. In addition, networks of MEO and LEO satellites 
are in the early implementation stage, funded by consortiums of companies 
that intend to provide worldwide voice communication capability. A useable 
portion of one or more of such networks is projected to be in place by the 
year 2000. The addition of voice capability to satellite systems may reduce 
the Company's competitive advantage over certain of its competitors, and it 
is possible that satellite owners may, at least on a temporary basis, offer 
rates at or below the Company's rates. 

    Several conventional mobile radio and SMR providers are expanding 
transmission coverage areas and are planning technological enhancements to 
offer digital services that could be competitive with current cellular 
services, including the HighwayMaster system. If SMR providers expand 
coverage and establish a significant degree of uniformity, through uniform 
use of proprietary digital technology or otherwise, SMR providers could 
eventually develop an integrated network to allow nationwide roaming. SMR 
operators also intend to offer dispatching services, data transmission and 
other services through their expanding networks that could compete with the 
Company's services. 

    Although current nationwide autonomous-registration incoming call 
delivery systems offered by the cellular industry are costly and are 
unavailable in some rural areas, the cellular industry may eventually develop 
a uniform standard for incoming call delivery at a reduced cost. If 
inexpensive autonomous-registration incoming call delivery systems for 
cellular roamers become standard, this feature of the Company's services may 
provide less of a competitive advantage. Moreover, if cellular carriers were 
to develop additional standard protocol and hardware for inexpensive data 
transmission and fraud control or if the cost of roaming services were to 
significantly decline, other competitive advantages of the Company's system 
would be reduced. 

    In general, technology in the wireless communications industry is in a 
rapid and continuing state of change as new technologies and enhancements to 
existing technologies continue to be introduced. The Company believes that 
its future success will depend upon its ability to develop and market 
products and services that meet changing customer needs and which anticipate 
or respond to technological changes on a timely and cost-effective basis. 
There can be no assurance that the Company will be able to keep pace with 
technological developments. 

                                     25 
<PAGE>

    Certain of the Company's competitors have significantly greater name 
recognition, financial and other resources than the Company. Among other 
things, it appears that certain of these resources have been or are being 
used by competitors of the Company to subsidize initial hardware purchases 
and provide extended periods of free services in an attempt to achieve rapid 
penetration of the Company's target market. 

BILLING DISCREPANCIES

    The Company's ability to operate its business on a profitable basis will 
depend in part upon whether it is able to monitor and control effectively the 
direct costs of providing services to its customers, including cellular air 
time charges. The Company must periodically monitor and reconcile the charges 
billed to the Company by GTE MobileComm on behalf of cellular carriers and 
the charges billed by AT&T to customers serviced through the AT&T Complex and 
by the Company to customers served through the NSC in order to obtain the 
appropriate amount of credit for any air time usage charges billed to the 
Company that represent calls dropped by cellular carriers or blocked, 
incorrectly switched or dropped by the AT&T Complex. In addition, the Company 
incurs certain costs for air time usage that are not billable to customers 
under current billing practices.  There can be no assurance that the Company 
will not incur significant costs in the future in connection with billing 
discrepancies or the reconciliation process or that the costs will not have 
an adverse impact on the Company's ability to achieve and maintain 
satisfactory profit margins.

UNCERTAINTY REGARDING PATENTS AND PROPRIETARY RIGHTS

    The Company holds nine domestic patents and has applied for several 
additional domestic and foreign patents relating to its Mobile Communication 
Units and communications network.  In general, the Company's existing patents 
relate to certain methods and apparatus of the HighwayMaster system for 
locating and communicating with vehicles utilizing the cellular 
communications network. The Company's software is also entitled to certain 
protections under state trade secret law and federal copyright law. The 
patents and other intellectual property rights of the Company cannot prevent 
competitors from developing competing systems using other land-based wireless 
communications systems or using the cellular system through a different 
method. While the Company believes that the nature and scope of the 
HighwayMaster communications system, including the Company's strategic 
business and technological relationships, would be difficult for a competitor 
to duplicate, there can be no assurance that a competitor would consider 
these hindrances to be material in light of the market potential. A 
competitor could invest time and resources in an attempt to duplicate certain 
key features of the Company's products and services, which could result in 
competition and have a material adverse effect on the Company's business. 

    Several of the Company's competitors have obtained and can be expected to 
obtain patents that cover products or services directly or indirectly related 
to those offered by the Company. There can be no assurance that the Company 
is aware of all patents containing claims that may pose a risk of 
infringement by its products or services. In addition, patent applications in 
the United States are confidential until a patent is issued and, accordingly, 
the Company cannot evaluate the extent to which its products or services may 
infringe on future patent rights held by others. In general, if it were 
determined that any of the Company's products, services or planned 
enhancements infringed valid patent rights held by others, the Company would 
be required to cease marketing such products or services or developing such 
enhancements, to obtain licenses to develop and market such products, 
services or enhancements from the holders of the patents or to redesign such 
products or services to avoid infringement. There can be no assurance that 
the Company would be able to obtain licenses on commercially reasonable 
terms, or that it would be able to design and incorporate alternative 
technologies, without a material adverse effect on its business. 

                                     26 
<PAGE>

    AT&T has filed applications for patent protection with respect to certain 
functions of the AT&T Complex and has obtained certain patents which appear 
to overlap with patents issued to the Company, two of which have been 
assigned by AT&T to Lucent.  In addition, AT&T has asserted that it has 
certain other proprietary rights relating to the AT&T Complex.  In connection 
with the pending litigation between the Company and AT&T, neither AT&T nor 
Lucent has asserted any patent claims against the Company.  However, there 
can be no assurance that they will not attempt to do so in the future.  In 
connection with the operation of the NSC or other future activities of the 
Company, there can be no assurance that the Company (if it were required to 
do so pursuant to patent or other purported rights of AT&T) would be able to 
obtain licenses from AT&T on commercially reasonable terms, or that it would 
be able to design and incorporate alternative technologies, without a 
material adverse effect on its business, financial condition and results of 
operations.  The Company has filed a lawsuit against AT&T and Lucent with 
respect to these proprietary rights and AT&T has countersued the Company.  
See "-- AT&T Litigation."

UNCERTAINTY OF GOVERNMENT REGULATION

    COMMON CARRIER STATUS.  The Company believes that the nature of its 
services does not require that the Company be classified as a common carrier 
for either wireless or long-distance regulatory purposes. However, because of 
the unique structure of the Company network and its relationship with 
existing telecommunications providers, the Company does not fit clearly into 
any of the various wireless regulatory categories established to date. 
Furthermore, the wireless telecommunications industry is currently 
experiencing significant regulatory changes, which may require a 
re-examination of laws and regulations applicable to the Company's 
operations. If the Company's interpretation of its regulatory status proves 
to be incorrect and it is deemed to be a common carrier, the Company may be 
required to offer its services on a non-discriminatory basis and, in certain 
states, comply with various other regulatory procedures, including the filing 
of informational tariffs. Upcoming regulation of cellular common carriers may 
also require equal access by customers to the long-distance provider of their 
choice. Although regulations applicable to common carriers would add certain 
administrative costs and possible complications in the Company's 
relationships with its long-distance provider and cellular carriers, the 
Company believes common carrier status would not require the Company to make 
substantial changes to its current services. There can be no assurance, 
however, that any necessary changes could be accomplished without a material 
adverse effect on the Company's business. 

    LONG-DISTANCE SERVICES.  Long-distance providers face regulatory 
provisions similar to cellular carriers, with greater state involvement in 
requiring the posting of bonds as security against customer deposits and in 
other matters. The Company believes current long-distance regulations apply 
to the companies providing long-distance services directly to Company 
customers, without long-distance regulatory involvement by the Company. There 
can be no assurance, however, that the Company will not become subject to 
regulations as a long-distance carrier and that such regulation would not 
have a material adverse effect on the Company's business. 

    TELECOMMUNICATIONS ACT.  In February 1996, the Telecommunications Act 
was signed into law.  This is the most comprehensive set of telecommunications 
laws to be enacted since the original Communications Act of 1934 was passed. 
The Telecommunications Act encourages competition in virtually every arena of 
communications and eliminates many regulatory barriers to new competitors by, 
in some instances, preempting state and local restrictions.  The 
Telecommunications Act requires the FCC to extensively revise many of the 
rules and regulations under which the telecommunications industry has been 
operating.  The FCC has estimated that it may need to implement as many as 80 
different proceedings in 

                                     27 
<PAGE>

order to accomplish this task.  At this time, it is unclear how the 
Telecommunications Act will affect the activities of the Company, its 
strategic business relationships with other communications companies, or its 
customers. There can be no assurance that the relaxing of barriers to 
competition in the industry will not hinder the Company's growth and 
viability in the marketplace.  

DEPENDENCE ON KEY PERSONNEL

    The Company is dependent on the efforts of William C. Kennedy, Jr., 
Chairman of the Board, William C. Saunders, President and Chief Executive 
Officer, Gordon C. Quick, Chief Operating Officer, and a group of employees 
with technical knowledge regarding the Company's systems. The loss of 
services of one or more of these individuals could materially and adversely 
affect the business of the Company and its future prospects. The Company has 
employment agreements with Messrs. Kennedy, Saunders and Quick.  Each of 
Messrs. Kennedy and Saunders may terminate such agreements upon one-year's 
written notice. Mr. Quick may terminate his agreement at any time upon 
90-days' written notice. The Company does not maintain key man life insurance 
on any of the Company's officers or employees. The Company's future success 
will also depend on its ability to attract and retain additional management 
and technical personnel required in connection with the growth and 
development of its business. 

PRODUCT LIABILITY

    Testing, manufacturing and use of the Company's products entail the risk 
of product liability. Although management believes the Mobile Communication 
Unit offers safety advantages over conventional cellular telephones, it is 
possible that operation of the product may give rise to product liability 
claims.  In addition, as the Company expands its business to include the 
provision of automotive security and similar systems such as those 
contemplated by the AutoLink business alliance, the larger number of 
consumers utilizing the Company's products may expose the Company to an 
increased risk of litigation regarding various safety, performance and other 
matters.  Product liability claims or recalls which exceed policy limits 
applicable to the Company's liability insurance or which are excluded from 
the policy coverage could have a material adverse effect on the business or 
financial condition of the Company. 

DIVIDEND POLICY

    The Company has never paid cash dividends on its Common Stock and has no 
plans to do so in the foreseeable future. The Company intends to retain 
earnings, if any, to develop and expand its business.

SHARES ELIGIBLE FOR FUTURE SALE

    The Company had 24,838,530 shares of Common Stock outstanding as of 
December 31, 1996.  Approximately 4,134,848 shares of Common Stock are freely 
tradable by persons other than "affiliates" of the Company, as that term is 
defined under the Securities Act, without restrictions or further 
registration under the Securities Act. The remaining shares are deemed 
"restricted securities" within the meaning of the Securities Act as a result 
of the issuance thereof in private transactions prior to the Company's 
initial public offering in June 1995.  These "restricted securities" may be 
publicly sold only if registered under the Securities Act or sold in 
accordance with an applicable exemption from registration, such as those 
provided by Rules 144 and 144A promulgated under the Securities Act.

                                     28 
<PAGE>

    In addition, the Company has granted certain registration rights under 
the Amended Stockholders' Agreement.  Among other things, the Company has 
agreed to register an aggregate of 1,818,018 shares of Common Stock held by 
the Erin Mills Stockholders and the Carlyle Stockholders for sale during the 
three-month periods beginning March 31, 1997 and June 30, 1997.  In addition, 
the Company has granted certain demand and piggyback registration rights to 
the Erin Mills Stockholders, the Carlyle Stockholders, SBW and certain other 
stockholders.

    The sale of a substantial number of shares of Common Stock or the 
availability of a substantial number of shares for sale may adversely affect 
the market price of the Common Stock and could impair the Company's ability 
to raise additional capital through the sale of its equity securities.

VOLATILITY OF STOCK PRICE

    Historically, the market prices for securities of emerging companies in 
the telecommunications industry have been highly volatile. Future 
announcements concerning the Company or its competitors, including results of 
technological innovations, new commercial products, government regulations, 
proprietary rights or product or patent litigation may have a significant 
impact on the market price of the Company's Common Stock.  The Company's 
stock price has been highly volatile in recent periods.  

ITEM 2.  PROPERTIES

REAL PROPERTY AND LEASES

    The Company does not own any real property. The Company leases 
approximately 54,323 square feet of office space for its corporate 
headquarters in Dallas, Texas, at an average price of $14.60 per square foot 
per year, pursuant to a short-term lease agreement. The Company leases a 
small amount of commercial office space for each of its five regional 
customer service offices. 

ITEM 3.  LEGAL PROCEEDINGS

    AT&T LITIGATION.  As previously reported, on February 16, 1996, the 
Company filed a lawsuit against AT&T in the U.S. District Court, Northern 
District of Texas, Dallas Division.  The Company is seeking preliminary and 
permanent injunctive relief restraining AT&T from using and disclosing the 
Company's trade secrets and proprietary information relating to its mobile 
communications technology.  In July 1996, AT&T filed counterclaims 
essentially mirroring the Company's claims.  

    In September and October 1996, both the Company and AT&T amended their 
pleadings and filed additional claims against each other related to breach of 
contract and various tortious activities.  AT&T seeks an injunction, a 
declaratory judgment defining the parties' intellectual property rights, 
actual and punitive damages and attorneys' fees in connection with its 
counterclaims. The Company seeks a declaration that the patents issued to 
AT&T using the Company's proprietary information are invalid or alternatively 
should be transferred from AT&T to the Company.  The Company also brought 
DTPA claims against AT&T and seeks actual, punitive and treble damages and 
attorneys' fees in connection with its claims.  Additionally, the Company's 
amended complaint added Lucent as an additional defendant, to which AT&T 
transferred certain of the patents at issue in the lawsuit.  

                                     29 
<PAGE>

    In November 1996, AT&T filed a partial motion to dismiss the Company's 
DTPA claims, various tort claims and the patent invalidity charges.  
Additionally, in November, 1996, Lucent filed a motion to dismiss all of the 
Company's claims against Lucent.  In December 1996, the Company filed a 
response to AT&T's partial motion to dismiss and a response to Lucent's 
motion to dismiss.  A hearing on the parties' motions is currently scheduled 
for May 1997.  

    The Company and AT&T were parties to the AT&T Contract under which AT&T 
provides enhanced call processing, data management services and long-distance 
network transport services through the AT&T Complex.  The AT&T Contract was 
terminated effective June 29, 1996.  AT&T continues to provide services for 
the Company without a formal contract pursuant to AT&T's obligations with 
respect to its existing service agreements with customers, although there can 
be no assurance that AT&T will continue to do so.

    OTHER LITIGATION.  The Company is involved in other litigation matters 
that normally arise in the course of conducting its business, although these 
matters are not considered to be of a material nature nor would they have a 
material effect on the business activities or continued operations of the 
Company.   

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

    There were no matters submitted to a vote of security holders during the 
fourth quarter of fiscal year 1996.  

                                  PART II

ITEM 5.  MARKET FOR REGISTRANT'S COMMON STOCK AND RELATED STOCKHOLDER MATTERS

    The Company's Common Stock was initially offered to the public on June 
22, 1995, and is quoted on the Nasdaq National Market ("Nasdaq NMS") under 
the symbol "HWYM".  Prior to that offering there was no public market for the 
Common Stock of the Company.  The following table sets forth the range of 
high and low trading prices on Nasdaq NMS for the Common Stock for the 
periods indicated, as reported by Nasdaq NMS.  Such price quotations 
represent inter-dealer prices without retail markup, markdown or commission 
and may not necessarily represent actual transactions.

                                     30 
<PAGE>

                                       PRICE RANGE
                                   ----------------------
                                    HIGH            LOW
                                   -------        -------
          1995
          Second Quarter 
           (beginning 
           June 22)...........     $22 3/4        $15
          Third Quarter ......     $16 3/4        $10
          Fourth Quarter .....     $13 1/2        $ 7 1/2

          1996
          First Quarter ......      $11 1/4       $ 5 3/8
          Second Quarter .....      $14           $ 5 3/4
          Third Quarter ......      $16 1/2       $ 9
          Fourth Quarter .....      $21 5/8       $15 5/8

    The Company had approximately 89 shareholders of record as of March 21, 
1997.   The last sales price for HighwayMaster's Common Stock as reported on 
March 21, 1997 was $11-5/8.  The Company did not pay dividends on its Common 
Stock for the year ended December 31, 1996 and presently intends to follow a 
policy of retaining all earnings to finance the continued growth of the 
Company's business and does not anticipate paying cash dividends or making 
other cash distributions to stockholders in the foreseeable future.

ITEM 6.  SELECTED FINANCIAL DATA

SELECTED CONSOLIDATED FINANCIAL DATA

The selected consolidated financial data set forth from inception of the
Partnership (April 24, 1992) to December 31, 1992 and for each
of the years 1993, 1994, 1995, and 1996 has been derived from audited financial
statements, including the consolidated balance sheets at December 31, 1996 and
1995 and the related consolidated statements of operations, of cash flows and of
changes in partners' and stockholders' equity for each of the three years in the
period ended December 31, 1996 and notes thereto appearing elsewhere herein.

<TABLE>
                                                                                         April 24, 1992
                                                                                         (Inception) to
                                                                                          December 31,
                                                1996        1995        1994       1993       1992
                                              --------    --------    --------    -------    -------
                                                          (In thousands, except per share)
<S>                                           <C>         <C>         <C>         <C>        <C>
CONSOLIDATED STATEMENT
OF OPERATIONS DATA -
Revenues:
  Product                                     $ 14,645    $ 16,946    $ 11,075    $ 1,665    $   ---
  Service                                       16,056       9,908       2,436        ---        ---
                                              --------    --------    --------    -------    -------
    Total revenues                             30,701       26,854      13,511      1,665        ---
                                              --------    --------    --------    -------    -------
Cost of revenues:
  Product                                       15,099      17,730      11,867      1,792        ---
  Service                                       11,489       9,172       2,099        ---        ---
  Writedown of inventory                         1,943         ---       1,658        ---        ---
                                              --------    --------    --------    -------    -------
    Total cost of revenues                      28,531      26,902      15,624      1,792        ---
                                              --------    --------    --------    -------    -------
  Gross profit (loss)                            2,170         (48)     (2,113)      (127)       ---
General and administrative expenses              9,479       7,299       6,577      2,981      1,554
Sales and marketing expenses                     9,139       6,273       3,890      3,222        838
Engineering expenses                             4,094       2,868       1,900      1,274        520
Customer service expenses                        8,089       5,727       4,587        915        ---
                                              --------    --------    --------    -------    -------
  Operating loss                               (28,631)    (22,215)    (19,067)    (8,519)    (2,912)
Interest income                                    809       1,041         279        ---        ---
Interest expense to related parties             (1,691)     (5,106)     (5,999)      (547)      (235)
Recapitalization costs                             ---         ---        (733)       ---        ---
Other income (expense)                            (230)       (117)       (361)        (9)        10
                                              --------    --------    --------    -------    -------
  Loss before income taxes and
   extraordinary item                          (29,743)    (26,397)    (25,881)    (9,075)    (3,137)
Income tax provision                               ---         ---         ---        ---        ---
                                              --------    --------    --------    -------    -------
Loss before extraordinary item                 (29,743)    (26,397)    (25,881)    (9,075)    (3,137)
Extraordinary item - loss on
 extinguishment of debt                           (317)     (6,980)        ---        ---        ---
                                              --------    --------    --------    -------    -------
  Net loss                                    $(30,060)   $(33,377)   $(25,881)   $(9,075)   $(3,137)
                                              --------    --------    --------    -------    -------
                                              --------    --------    --------    -------    -------
Per share data:
  Loss per share before extraordinary item      ($1.39)     ($1.39)
  Extraordinary item                             (0.01)      (0.34)
                                              --------    --------
  Net loss per share                            ($1.40)   $  (1.73)
                                              --------    --------
                                              --------    --------
  Weighted average number of shares
   outstanding                                  22,763      20,407
                                              --------    --------
                                              --------    --------
Pro forma per share data (unaudited):
  Pro forma net loss per share                                          ($1.50)
                                                                      --------
                                                                      --------
Weighted average number of shares
 outstanding used in the pro forma
 net loss per share calculation                                         18,259
                                                                      --------
                                                                      --------

                                     31
<PAGE>



                                            DECEMBER 31, DECEMBER 31, DECEMBER 31, DECEMBER 31, DECEMBER 31,
                                                1996         1995         1994         1993         1992
                                            ------------ ------------ ------------ ------------ ------------
CONSOLIDATED BALANCE
SHEET DATA:
    Cash and cash equivalents                 $19,725      $23,969      $ 4,158      $   630       $   292
    Property and equipment -- net               7,756        3,927        1,386          593           166
    Total assets                               42,929       42,369       16,430        5,928         1,575
    Long-term debt and
         notes payable                            ---       11,488       36,247        7,225         6,045
    Redeemable preferred stock                    ---        8,126        6,149          ---           ---
    Stockholders' equity (deficit)             34,664       13,101      (34,773)      (3,816)       (5,241)
</TABLE>

ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS

GENERAL

    HighwayMaster operates a wireless, enhanced services network with both 
voice and data capabilities in 99% of the available cellular coverage in the 
United States and 100% of the A-Side cellular coverage in Canada. This 
network covers approximately 95% of the United States interstate highway 
system and consists of a unique integration of Company provided on-board 
equipment and software with various transmission, long distance, switching, 
tracking and other services and facilities provided by certain 
telecommunications companies and more than 70 cellular carriers. Through this 
private network, the Company provides integrated mobile voice, data, 
tracking, and fleet management information services to trucking fleets and 
other operators in the long-haul segment of the transportation industry.

    The Company commenced operations in April 1992 and has a limited operating
history.  The Company began offering the HighwayMaster system on a commercial
basis in September 1993.  In order to achieve a profitable level of operations,
the Company must significantly increase its installed base of Mobile
Communications Units and generate substantially greater service revenues.  The
likelihood of the long-term success of the Company must be considered in light
of the expenses, difficulties and delays frequently encountered in connection
with the early stages of the development and marketing of

                                     32

<PAGE>

telecommunications products and services, as well as the competitive
environment in which the Company operates.  There can be no assurance that the
Company's future operations will generate operating or net income.  See "Risk
Factors -- Limited Operating History; History of Losses."

    The Company's revenues are derived from sales and installation of Mobile 
Communication Units and charges for its services. The Company currently 
offers its Mobile Communication Units to customers at a retail price of 
approximately $1,995 per Unit, with tiered discounts for larger volume 
purchases. Customers that operate Units installed in their trucks are charged 
(i) a flat fee of $0.53 per minute for all voice calls for communications 
within the United States and $0.64 per minute for cross-border communications 
with Units in Canada, and (ii) a flat fee of $0.48 per minute for all data 
transmissions within the United States and $0.59 per minute for cross-border 
data transmissions. Such flat fees include all cellular air time rates and 
long-distance charges. In addition, callers are charged a fee for each call 
billed to a separate account, such as a credit card, calling card or 
HighwayMaster account. In the case of customers served through the NSC, 
placed into service by the Company in the third quarter of 1996, the Company 
retains and recognizes as revenue the full amount of these service charges, 
but must bear all costs associated with providing the related services.  In 
the case of customers served through the AT&T Complex, these service charges 
are collected by AT&T.  The Company receives payment from AT&T for the 
portion of these service charges recognized by the Company as revenue and the 
remainder is retained by AT&T as compensation for the call processing, 
enhanced long distance and customer collection services performed by AT&T.  
The Company also assesses a fixed monthly service fee of $41 for each Unit 
installed.

    The Company and AT&T were parties to the AT&T Contract under which AT&T 
provided enhanced call processing, data management services and long-distance 
network transport services through the AT&T Complex.  The AT&T Contract was 
terminated by AT&T effective June 29, 1996.  However, AT&T continues to 
provide services for certain Company customers without a formal contract with 
the Comapny pursuant to AT&T's obligations with respect to its existing 
service agreements with such customers.  See "Risk Factors -- Status of AT&T 
Contract; Network Services Center" and " -- AT&T Litigation."

    In the third quarter of 1996, the Company placed into service the NSC.  The
NSC provides enhanced call processing services that were previously provided on
an exclusive basis by AT&T.  All new customers of the Company are provided
services through the NSC.  Accordingly, the Company provides customer billing,
credit, and collection activities with respect to those customers.  Existing
customers who are currently being provided services by AT&T are eligible to
begin receiving service provided through the NSC upon the expiration of their
respective joint service agreements.

    The Company generally recognizes revenue from the sale of Mobile
Communication Units at the time the Units are shipped to customers. However, in
some cases, the Company has installed Units in customers' trucks on a trial
basis, permitting customers to return such Units with limited or no penalty. In
such cases, the Company does not recognize revenue from the sale of the Units
until the trial period has expired.

    The principal components of cost of revenues are the cost of the Mobile
Communication Unit, warranty and obsolescence provisions, cost of installation,
charges for the cost of cellular air time used by the Unit (which charges are
paid by GTE MobileComm to cellular carriers and reimbursed by the Company),
charges by GTE-TSI and EDS for the cost of validation and call delivery
information from the Mobile Communication Unit and the cost of installation of
the Mobile Communication Unit.

                                     33

<PAGE>

    As of December 31, 1996, the Company had installed 20,354 Mobile 
Communication Units (including 478 Units installed on a test basis) and had 
orders to install an additional 12,584 Units (including approximately 1,333
Units to be installed upon successful completion of test programs).  Not 
included in these orders are approximately 3,000 Units that may be ordered by 
Wal*Mart Stores Inc. in the event of the successful completion of their test 
currently underway on 353 Units.  In comparison, the Company had installed 
14,751 Units at December 31, 1995.  The Company's order backlog is based on 
signed contracts, which do not specify delivery dates.  Accordingly, in some 
cases the timing of installation is uncertain, and the Company expects that 
not all of the Units on order at December 31, 1996 will be shipped and 
installed within the next twelve months.

    The Company leases its products to certain customers under contracts that 
are accounted for as sales-type leases.  As of December 31, 1996, the 
Company's balance sheet reflected a total receivable balance of approximately 
$1,468,000 related to such leases. In March 1997, a customer who represents 
$1,239,000 of the total receivable balance notified the Company that it 
intended to terminate its long-term lease commitment.  Although the lease 
agreement contains termination penalties, the Company believes that it may be 
necessary to write-off a portion of the receivable as a result of the lease 
termination.  The Company estimates that the amount of the write-off may 
range from approximately $500,000 to $1,000,000, although the Company is 
continuing to evaluate its position under the lease and no final decision has 
been reached. Any write-off of a portion of the receivable would be reflected 
as a charge to results of operations in 1997.

YEAR ENDED DECEMBER 31, 1996 COMPARED TO YEAR ENDED DECEMBER 31, 1995

    Revenues for 1996 were $30.7 million compared to $26.9 million for 1995.
Product revenues for 1996 were $14.6 million compared to $17.0 million for 1995.
The principal reason for the decrease in product revenues from 1995 to 1996 is
a 24.5% decrease in the number of Mobile Communication Units sold. The decrease
in Units sold was due to, among other things, (i) prospective customers
postponing their decision to purchase until they were comfortable that the
Company could deliver service through the NSC, (ii) prospective customers'
concerns about the Company's financial condition and (iii) adverse economic
conditions affecting the trucking industry.  Service revenues for 1996 were
$16.1 million compared to $9.9 million for 1995.  The increase in service
revenues in  1996 is primarily attributable to the increase in the number of
Mobile Communication Units in service.

    Cost of revenues for 1996 was $28.5 million compared to $26.9 million for
1995.  This relationship reflects the decrease in the number of Units sold in
1996 compared to 1995 offset by increased cost of service revenues in 1996 as a
result of the increase in the number of Mobile Communication Units in service.
Cost of revenues for 1996 was 92.9% (86.6% exclusive of the inventory write-
down) of revenues compared to 100.2% of revenues for 1995.  Cost of revenues for
1996 included a $1.9 million inventory write-down to adjust the carrying value
of used earlier generation mobile unit component parts inventory to its
estimated net realizable value.  Cost of product revenues for 1996 was 116.4%
(103.1% exclusive of the inventory write down) of product revenues compared to
104.6% of revenues for 1995.  Excluding the effect of the inventory write down,
product margin improved as a result of higher average selling prices and lower
average cost per Unit in 1996 as compared to 1995.  However, this margin
improvement was offset by costs incurred on the earlier generation Mobile
Communication Units in order to make them compatible with the NSC and costs of
upgrading earlier generation Mobile Communication Units.  Cost of service
revenues for 1996 was 71.6% of service revenues compared to 92.6% of service
revenues in the 1995 period.  The improvement from 1995 to 1996 is primarily
due to (i) the effect of lower costs as a result of renegotiated rates with the
Company's

                                     34

<PAGE>

service providers that were in effect during 1996 and (ii) improvement in the
Company's ability to monitor and control charges for air time usage.

    General and administrative expenses for 1996 were $9.5 million compared to
$7.3 million for 1995.  The increase from 1995 to 1996 is primarily attributable
to rent expense, depreciation expense, and professional fees.  Rent expense
increased as a result of (i) additional office space and equipment under lease
due to the growth in the number of employees from 241 at the end of 1995 to 295
at the end of 1996 and (ii) increased cost per square foot in the lease
agreement for the Company's office space.  Depreciation expense increased as a
result of additions to machinery and equipment, computers and office equipment,
and the NSC which was placed in service during the third quarter of 1996.  The
increase in professional fees was primarily due to legal fees in connection with
the AT&T and shareholder suit litigation.

    Sales and marketing expenses for 1996 were $9.1 million compared to $6.2
million for 1995.  The increase from 1995 to 1996 is primarily related to growth
in the number of employees.

    Engineering expenses for 1996 were $4.1 million compared to $2.9 million
for 1995.  The increase is primarily attributable to increases in payroll
related costs, and operating expenses for the NSC.

    Customer service expenses for 1996 were $8.1 million compared to $5.7
million for 1995.  The increase from 1995 to 1996 is primarily attributable to
(i) payroll related costs as a result of growth in the number of employees, (ii)
customer support costs in response to the increased number of Units in service,
and (iii) concessions granted on amounts owed by a major customer that was
downsizing its fleet.

    Interest income was $0.8 million in 1996 compared to $1.0 million in 1995.
The decrease from 1995 to 1996 reflects the lower average cash balances
available for temporary investments.

    Interest expense to related parties was $1.7 million in 1996 compared to
$5.1 million in 1995. The decrease from 1995 to 1996 reflects the lower average
outstanding indebtedness.

    The 1996 and 1995 extraordinary item, loss on extinguishment of debt,
represents the write-off of the unamortized balances of debt discount and debt
issue costs associated with the early retirement of notes payable to related
parties.  See notes 3 and 8 to the Consolidated Financial Statements.

YEAR ENDED DECEMBER 31, 1995 COMPARED TO YEAR ENDED DECEMBER 31, 1994

    Revenues for 1995 were $26.9 million compared to $13.5 million for 1994.
Product revenues for 1995 were $17.0 million compared to $11.1 million for 1994.
Service revenues for 1995 were $9.9 million compared to $2.4 million for 1994.
The increase in product revenues and service revenues in the 1995 period is
primarily attributable to the increase in the number of Mobile Communication
Units sold and in service, respectively.

    Cost of revenues for 1995 was $26.9 million compared to $15.6 million for 
1994.  This increase is consistent with the number of Units sold and in 
service. Cost of revenues for 1995 was 100.2% of revenues compared to 115.6% 
(103.4% exclusive of the inventory write-down) of revenues for 1994.  Cost of 
revenues for 1994 included a $1.7 million inventory write-down for LORAN-C 
radio receivers reflecting the Company's decision to change to the use of GPS 
satellite receivers in its Units.  Cost of product revenues for 1995 was 
104.6% of product revenues compared to 122.1% (107.2% exclusive

                                     35 

<PAGE>

of the inventory write down) of revenues for 1994.  Cost of revenues from
products exceeded revenues from products during both years for several
reasons, including higher costs associated with manufacturing small quantities
and being unable to take advantage of economies of scale, initial
implementation of a product installation infrastructure with excess capacity
to support anticipated increases in sales, and equipment price discounts to
certain early customers.  Although revenues from services exceeded cost of
revenues from services during both the 1995 and 1994 periods, results for
both periods have been affected by (i) technical difficulties with the AT&T
Complex and (ii) differences between the billing procedures of cellular
carriers and the Company, which resulted in the Company paying cellular
carriers for more minutes of cellular air time than were billed to the
Company's customers.

    General and administrative expenses for 1995 were $7.3 million compared to
$6.6 million for 1994.  During 1995, the Company's general and administrative
functions were increased to meet the growth in revenues as well as for the
additional administrative requirements of a public company.  Accordingly,
virtually all categories of expenses increased primarily as a result of the
growth in the number of employees from 188 at the end of 1994 to 241 at the end
of 1995.  The most significant increases, aggregating approximately $2.0
million, were payroll related costs, occupancy costs and insurance.  These
increases were partially offset by decreases, in the aggregate amount of $1.4
million, as a result of reductions from the 1994 amounts for amortization
expense related to the deferred debt issue costs (see Notes 3 and 8 of the Notes
to the Consolidated Financial Statements), bad debt expense (see Note 10 of the
Notes to the Consolidated Financial Statements), and professional fees.

    Sales and marketing expenses for 1995 were $6.3 million compared to $3.9
million for 1994.  The increase from 1994 to 1995 period is related to increases
in advertising and promotion of the Mobile Communication Units, the creation of
a distribution network for sales of Units and growth in the number of employees.

    Engineering expenses for 1995 were $2.9 million compared to $1.9 million
for 1994.  This increase is primarily attributable to payroll related costs as a
result of both growth in the number of employees and outside contractors from
1994 to 1995 to enable the Company to design and develop the second generation
of the HighwayMaster Mobile Communication Unit while maintaining and enhancing
its system software.

    Customer service expenses for 1995 were $5.7 million compared to $4.6
million for 1994.  This increase is primarily attributable to (i) payroll
related costs as a result of both growth in the number of employees and outside
contractors and (ii) customer support costs in response to the increased number
of Units sold and in service.

    The changes in interest income and interest expense to related parties
between 1995 and 1994 reflects the income from temporary investments made with a
portion of the proceeds from the initial public offering and lower average
outstanding indebtedness in the 1995 period as a result of the debt repayments
made with a portion of the proceeds from the initial public offering.

    Recapitalization costs in the amount of $0.7 million for the 1994 period
were expended in connection with the Recapitalization.

LIQUIDITY AND CAPITAL RESOURCES

                                     36

<PAGE>

    As more fully described in Notes 8 and 10 to the Consolidated Financial
Statements, on September 27, 1996, the Company (i) issued Series D Preferred
Stock to a new investor for cash of $20.0 million and issued Warrants to
purchase 5.0 million shares of Common Stock, (ii) issued 800,000 shares of
Common Stock to certain existing stockholders in exchange for cash of $10
million, and (iii) issued an aggregate of 1,882,018 shares of Common Stock in
exchange for the cancellation of notes payable to related parties in the
aggregate principal amount of $12,662,000 and cancellation of all outstanding
shares of Series B Preferred Stock of the Company.  The effect of these
transactions was to increase cash by $29,688,000 (net of offering costs), to
eliminate all outstanding indebtedness of the Company and to increase
stockholders equity by approximately $52 million.

    The Company's business historically has not required substantial capital
expenditures.  However, during 1996 the Company completed and placed into
service the new NSC at a cost of $4.8 million.  At December 31, 1996 the Company
is committed to build another switching complex (the "Additional Complex") in
connection with its contract with Prince for the AutoLink product offering.
Construction of the Additional Complex is scheduled for the fourth quarter of
1997 at a cost estimated to range from $2.0 to $3.0 million.  In the event the
Company elects to expand its local service business or to pursue other business
opportunities, the Company will need to build additional complexes.

    Net cash used in operating activities for the year ended December 31, 1996
was $29.8 million due primarily to a net loss of $30.1 million.

    At December 31, 1996 the Company had cash on hand of $19.7 million and
working capital of $24.6 million. Based on the Company's projected operating
results, the Company believes that it is likely that it will need to secure
additional equity or debt financing during 1997 in order to fund its currently
anticipated operating needs and capital expenditure requirements.  The amount
and timing of the additional financing that will be required depends upon, among
other things, the Company's 1997 cash flow from operations, which may vary
depending on a number of factors, including the rate of installation of Mobile
Communication Units, the level of competition and general economic conditions
and other factors beyond the Company's control. The Company is actively
evaluating its alternatives with respect to obtaining additional equity or debt
financing, although, at the present time, the Company does not have any
commitments in place.  While the Company believes there are alternative sources
of financing available, there can be no assurance that the Company will be able
to consummate a financing arrangement on terms that would be satisfactory.

INFLATION

    The Company believes that to date inflation has not had a material effect
on its results of operations.  Although inflation may in the future affect the
cost of the Mobile Communication Units sold by the Company, the Company expects
that economies of scale and engineering improvements are likely to offset any
foreseeable cost increases.



ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

   The Company's consolidated financial statements at December 31, 1995 and 
1996, and for each of the three years in the period ended December 31, 1996 
and the Report of Price Waterhouse LLP, independent accountants, are included 
in this Annual Report on Form 10-K on pages F-1 through F-22.

                                     37


<PAGE>

ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE

    None.













                                          38
<PAGE>
                                       PART III
                                           
ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT.

    Information regarding Directors and Executive Officers is incorporated by 
reference to the section entitled "Election of Directors" in the Registrant's 
definitive Proxy Statement to be filed with the Securities and Exchange 
Commission in connection with the Annual Meeting of Stockholders to be held 
on May 20, 1997 (the "Proxy Statement").  

ITEM 11.  EXECUTIVE COMPENSATION.

    The information required by this item is incorporated by reference from the
Proxy Statement under the heading "Executive Compensation."

ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.

    The information required by this item is incorporated by reference from the
Proxy Statement under the heading "Security Ownership of Certain Beneficial
Owners and Management."

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.

    The information required by this item is incorporated by reference from the
Proxy Statement under the heading "Certain Transactions."






                                           39

<PAGE>

                                       PART IV

ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 10-K.

                                                                         PAGE
                                                                        NUMBER
                                                                        ------
(a) Documents filed as part of the report:
    
    (1)  Report of Independent Accountants   .........................    F-1
         Consolidated Balance Sheets as of December 31, 1996
              and 1995  ..............................................    F-2
         Consolidated Statements of Operations for the Years Ended
              December 31, 1996, 1995 and 1994 .........................  F-3
         Consolidated Statements of Cash Flows for the Years Ended 
              December 31, 1996, 1995 and 1994..........................  F-4
         Consolidated Statements of Changes in Partners' and Stockholders' 
              Equity (Deficit) for the Years Ended December 31, 1996, 
              1995 and 1994............................................   F-5
         Notes to Consolidated Financial Statements...................    F-6
 .

    (2)  Consolidated Financial Statement Schedule                        
         Schedule II Valuation and Qualifying Accounts...............     S-1

Financial statement schedules other than those listed above have been omitted
because they are either not required, not applicable or the information is
otherwise included.

(3) Exhibits

      3.1  -    Certificate of Incorporation of the Company,
                as amended.(1)
      3.2  -    Form of Amended By-Laws of the Company.(7)
      4.1  -    Specimen of certificate representing Common Stock, $.01 par 
                value, of the Company.(1)
      4.2  -    Warrant Certificate, dated September 27,
                1996, issued to SBW.(7)
      4.3  -    Recapitalization Agreement, dated September
                27, 1996, by and among the Company, the Erin Mills
                Stockholders, the Carlyle Stockholders and the other
                persons named therein. (7)
      4.4  -    Amended and Restated Stockholders' Agreement,
                dated September 27, 1996, by and among the Company,
                SBW, the Erin Mills Stockholders, the Carlyle
                Stockholders, the By-Word Stockholders and the other
                persons named therein. (7)
     10.1  -    License Agreement, dated April 23, 1992, by
                and between Voice Control Systems and the Company (as
                successor to By-Word Technologies, Inc.)(1)
     10.2  -    Agency Agreement, dated February 1, 1993,
                between the Company and Saunders, Lubinski & White,
                Inc.(1)

                                          40
<PAGE>

     10.3  -    Employment Agreement, dated February 4, 1994,
                by and between HighwayMaster Corporation and William C.
                Kennedy, Jr., as amended.(1)(5)
     10.4  -    Employment Agreement, dated February 4, 1994,
                by and between HighwayMaster Corporation and William C.
                Saunders, as amended. (1)(5)
     10.5  -    Employment Agreement, dated November 23,
                1994, by and between HighwayMaster Corporation and
                Gordon D. Quick.(1)(5)
     10.6  -    Amended and Restated 1994 Stock Option Plan
                of the Company, dated February 4, 1994, as amended.(1)(5)(6)
     10.7  -    Purchase Agreement, dated September 27, 1996,
                between the Company and SBW. (7)
     10.8  -    Mobile Communications (Voice and Data)
                Services Agreement, dated as of July 15, 1993, between
                the Company and EDS Personal Communications
                Corporation.(1)(2)
     10.9  -    Services Agreement, dated March 14, 1995,
                between the Company and GTE Telecommunications Services
                Incorporated.(1)(2)
    10.10  -    Services Agreement, dated March 20,
                1996, between the Company and GTE-Mobile Communications
                Service Corporation.(3)(4)
    10.11  -    Agreement, dated June 8, 1994, between
                the Company and Truckstops of America, Inc.(1)
    10.12  -    Amendment dated November 16, 1995 to
                that certain Mobile Communications (Voice and Data)
                Services Agreement, dated as of July 15, 1993, between
                the Company and EDS Personal Communications
                Corporation. (3)(4)
    10.13  -    Letter Agreement, dated April 5, 1995,
                between the Company and IEX Corporation.(1)
    10.14  -    Product Development Agreement, dated
                December 21, 1995, between the Company and IEX
                Corporation.(3)(4)
    10.15  -    Technical Services Agreement, dated
                September 27, 1996, between the HM Corporation and SBW.(7) 
    10.16  -    Letter Agreement, dated February 19,
                1996, between the Company and IEX Corporation.(3)
    10.17  -    Form of Adoption Agreement, Regional
                Prototype Cash or Deferred Profit-Sharing Plan and
                Trust Sponsored by McKay Hochman Co., Inc., relating to
                the HighwayMaster Corporation 401(k) Plan.(1)
    10.18  -    Agreement,  dated December 3, 1996,
                between the Company and Pickett Racing.(9)
    11     -    Statement re Computation of Per Share Earnings. (9)
    21     -    Subsidiaries of Registrant. (1)
    23.1   -    Consent of Price Waterhouse LLP.(9)
    27     -    Financial Data Schedule (9)
_________

         (1)  Filed in connection with the Company's Registration Statement on
              Form S-1, as amended (No. 33-91486) effective June 22, 1995.


                                        41
<PAGE>

         (2)  Certain confidential portions deleted pursuant to Order Granting
              Application for Confidential Treatment issued in connection with
              Registration Statement on Form S-1 (No. 33-91486) effective June
              22, 1995.

         (3)  Filed in connection with the Company's Annual Report on Form 10-K
              for the fiscal year ended December 31, 1995.

         (4)  Certain confidential portions deleted pursuant to Application for
              Confidential Treatment filed in  connection with the Company's 
              Annual Report on Form 10-K for the fiscal year ended December 
              31, 1995.

         (5)  Indicates management or compensatory plan or arrangement required
              to be identified pursuant to Item 14(a)(4).

         (6)  Filed in connection with the Company's Form 10-Q Quarterly Report
              for the quarterly period ended June 30, 1996.

         (7)  Filed in connection with the Company's Current Report on Form 8-K
              filed on October 7, 1996.

         (8)  Filed in connection with the Company's Form 10-Q Quarterly Report
              for the quarterly period ended September 30, 1996.

         (9)  Filed herewith.

(b) Reports on Form 8-K

    On October 7, 1996, the Company filed a Current Report on Form 8-K relating
to certain transactions that were consummated on September 27, 1996 involving
SBW and certain existing stockholders of the Company.

(c) Exhibits

    The exhibits required by this Item are listed under Item 14(a)(3).

(d) Financial Statements Schedules

    The consolidated financial statement schedules required by this Item are
listed under Item 14(a)(2).
    



                                     42

<PAGE>

                                      SIGNATURES 

    Pursuant to the requirements of Section 13 or 15(d) of the Securities 
Exchange Act of 1934, the Registrant has duly caused this Report to be signed 
on its behalf by the undersigned, thereunto duly authorized.

March 27, 1997

                                       HIGHWAYMASTER COMMUNICATIONS, INC.


                                       By:  /s/  WILLIAM C. SAUNDERS 
                                          -------------------------------------
                                          William C. Saunders,
                                          President and Chief Executive Officer























                                     43 
<PAGE>

    Pursuant to the requirements of the Securities Exchange Act of 1934, this 
Annual Report on Form 10K for the fiscal year ended December 31, 1996, has 
been signed below by the following persons on behalf of the Registrant in the 
capacities and on the dates indicated.

            SIGNATURE                             TITLE               DATE 
            ---------                             -----               ---- 


   /s/  WILLIAM C. KENNEDY, JR.         Chairman of the Board     March 27, 1997
- ---------------------------------  
     William C. Kennedy, Jr.         


    /s/  WILLIAM C. SAUNDERS        President, Chief Executive    March 27, 1997
- ---------------------------------      Officer, and Director      
      William C. Saunders           (Principal Executive Officer) 


     /s/  STEPHEN P. TACKE           Vice President, Controller   March 27, 1997
- ---------------------------------   and Acting Chief Financial
       Stephen P. Tacke             Officer (Principal Financial  
                                      and Accounting Officer)    


       /s/  TRACY GRIFFIN              Senior Vice President      March 27, 1997
- ---------------------------------          and Treasurer          
         Tracy Griffin               


       /s/  TERRY PARKER                      Director            March 27, 1997
- ---------------------------------- 
         Terry Parker                


      /s/  STEPHEN GREAVES                    Director            March 27, 1997
- ---------------------------------- 
        Stephen Greaves            


      /s/  GERRY C. QUINN                     Director            March 27, 1997
- ---------------------------------- 
        Gerry C. Quinn               



                                      44 
<PAGE>

                     REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Directors and Stockholders of HighwayMaster
 Communications, Inc.

In our opinion, the consolidated financial statements listed in the index 
appearing under Item 14(a)(1) and (2) on page 40 present fairly, in all 
material respects, the financial position of HighwayMaster Communications, 
Inc. and its subsidiary at December 31, 1996 and 1995, and the results of 
their operations and their cash flows for each of the three years in the 
period ended December 31, 1996, in conformity with generally accepted 
accounting principles. These financial statements are the responsibility of 
the Company's management; our responsibility is to express an opinion on 
these financial statements based on our audits.  We conducted our audits of 
these statements in accordance with generally accepted auditing standards 
which require that we plan and perform the audit to obtain reasonable 
assurance about whether the financial statements are free of material 
misstatement.  An audit includes examining, on a test basis, evidence 
supporting the amounts and disclosures in the financial statements, assessing 
the accounting principles used and significant estimates made by management, 
and evaluating the overall financial statement presentation.  We believe that 
our audits provide a reasonable basis for the opinion expressed above.




PRICE WATERHOUSE LLP
Dallas, Texas
February 10, 1997


















                                     F-1
<PAGE>

              HIGHWAYMASTER COMMUNICATIONS, INC. AND SUBSIDIARY
                        CONSOLIDATED BALANCE SHEETS
                  (in thousands, except share information)

                                  ASSETS

<TABLE>
                                                                               December 31,
                                                                          --------------------
                                                                             1996       1995
                                                                          ---------   --------
<S>                                                                          <C>         <C>
Current assets:
  Cash and cash equivalents                                               $  19,725   $ 23,969
  Accounts receivable, net of allowance for doubtful accounts
   of $774 and $815, respectively                                             8,537      5,949
  Other short-term receivables                                                  919        803
  Inventory                                                                   3,458      4,199
  Prepaid expenses                                                              231        506
                                                                          ---------   --------
    Total current assets                                                     32,870     35,426
Property and equipment, net of accumulated depreciation
 of $1,776 and $800, respectively                                             7,756      3,927
Long-term receivables                                                         1,045      1,394
Deposits                                                                        309        112
Other assets, net of accumulated amortization
 of $1,024 and $1,125, respectively                                             949      1,510
                                                                          ---------   --------
                                                                          $  42,929   $ 42,369
                                                                          ---------   --------
                                                                          ---------   --------

                     LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
  Accounts payable                                                        $   3,450   $  5,028
  Telecommunications costs payable                                            2,805      1,984
  Accrued interest payable to related parties                                   ---        345
  Accrued warranty                                                              273        876
  Accrued loss on short-term contracts                                          570        ---
  Other current liabilities                                                   1,167      1,421
                                                                          ---------   --------
    Total current liabilities                                                 8,265      9,654
Notes payable to related parties                                                ---     11,488
Commitments and contingencies (Note 12) 
                                                                          ---------   --------
    Total liabilities                                                         8,265     21,142
                                                                          ---------   --------
Series B redeemable preferred stock, $.01 par value, 10,000 shares
 authorized; zero and 1,080 shares issued and outstanding, respectively         ---      8,126
                                                                          ---------   --------
Stockholders' equity:
  Series D participating convertible preferred stock, $.01 par value, 
   1,000 shares authorized; 1,000 and zero shares issued and outstanding
   at December 31, 1996 and 1995, respectively                                  ---        ---
  Common stock, $.01 par value, 50,000,000 shares authorized;
   25,150,527 and 22,333,661 shares issued; 24,838,530 and 22,021,664 
   shares outstanding at December 31, 1996 and 1995, respectively               251        223
  Additional paid-in capital                                                144,829     90,560
  Accumulated deficit                                                      (109,869)   (77,135)
  Treasury stock, 311,997 shares, at cost                                      (547)      (547)
                                                                          ---------   --------
    Total stockholders' equity                                               34,664     13,101
                                                                          ---------   --------
                                                                          $  42,929   $ 42,369
                                                                          ---------   --------
                                                                          ---------   --------
</TABLE>


                   See accompanying notes to consolidated financial statements.


                                              F-2

<PAGE>

              HIGHWAYMASTER COMMUNICATIONS, INC. AND SUBSIDIARY
                  CONSOLIDATED STATEMENTS OF OPERATIONS
                    (in thousands, except per share)

                                                    Year ended December 31,
                                                ------------------------------
                                                  1996       1995       1994
                                                --------   --------   --------
Revenues:
  Product                                       $ 14,645   $ 16,946   $ 11,075
  Service                                         16,056      9,908      2,436
                                                --------   --------   --------
    Total revenues                                30,701     26,854     13,511
                                                --------   --------   --------
Cost of revenues:
  Product                                         15,099     17,730     11,867
  Service                                         11,489      9,172      2,099
  Writedown of inventory                           1,943        ---      1,658
                                                --------   --------   --------
    Total cost of revenues                        28,531     26,902     15,624
                                                --------   --------   --------
Gross profit (loss)                                2,170        (48)    (2,113)
General and administrative expenses                9,479      7,299      6,577
Sales and marketing expenses                       9,139      6,273      3,890
Engineering expenses                               4,094      2,868      1,900
Customer service expenses                          8,089      5,727      4,587
                                                --------   --------   --------
  Operating loss                                 (28,631)   (22,215)   (19,067)
Interest income                                      809      1,041        279
Interest expense to related parties               (1,691)    (5,106)    (5,999)
Recapitalization costs                               ---        ---       (733)
Other (expense)                                     (230)      (117)      (361)
                                                --------   --------   --------
  Loss before income taxes and
   extraordinary item                            (29,743)   (26,397)   (25,881)
Income tax provision                                 ---        ---        ---
                                                --------   --------   --------
  Loss before extraordinary item                 (29,743)   (26,397)   (25,881)
Extraordinary item -- loss on
 extinguishment of debt                             (317)    (6,980)       ---
                                                --------   --------   --------
  Net loss                                      $(30,060)  $(33,377)  $(25,881)
                                                --------   --------   --------
                                                --------   --------   --------
Primary per share data:
  Loss before extraordinary item                  $(1.39)    $(1.39)
  Extraordinary item                               (0.01)     (0.34)
                                                --------   --------
  Net loss per share                              $(1.40)    $(1.73)
                                                --------   --------
                                                --------   --------
  Weighted average number of shares outstanding   22,763     20,407
                                                --------   --------
                                                --------   --------
Pro forma per share data (unaudited): 
  Pro forma net loss per share                                          $(1.50)
                                                                      --------
                                                                      --------
  Weighted average number of shares outstanding used 
   in the pro forma net loss per share calculation                      18,259
                                                                      --------
                                                                      --------

     See accompanying notes to consolidated financial statements.

                                    F-3

<PAGE>

              HIGHWAYMASTER COMMUNICATIONS, INC. AND SUBSIDIARY
                   CONSOLIDATED STATEMENTS OF CASH FLOWS
                              (in thousands)

<TABLE>
                                                                                       Year ended December 31,
                                                                                 -----------------------------------
                                                                                   1996         1995         1994
                                                                                 ---------    ---------    ---------
<S>                                                                                 <C>          <C>          <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net loss                                                                       $(30,060)    $(33,377)    $(25,881)
  Adjustments to reconcile net loss to cash used in
   operating activities:     
     Depreciation and amortization                                                  1,651          886          825
     Amortization of discount on notes payable                                        871        2,296        2,410
     Interest paid-in-kind                                                            ---          ---          457
     Payment of debt issue costs                                                      ---          ---       (1,000)
     Extraordinary item                                                               317        6,980          ---
     (Increase) decrease in accounts receivable                                    (2,588)      (1,127)      (4,169)
     (Increase) decrease in other receivables                                         233       (1,146)      (1,051)
     (Increase) decrease in inventory                                                 741         (669)        (182)
     (Increase) decrease in prepaid expenses and deposits                              78         (386)          (3)
     Increase (decrease) in accounts payable                                       (1,578)        (906)       3,942
     Increase (decrease) in accrued expenses and other current liabilities            189        1,753        2,346
     Other                                                                            329          (74)         219
                                                                                  -------      -------      -------
       Net cash used in operating actitivies                                      (29,817)     (25,770)     (22,087)
                                                                                  -------      -------      -------
CASH FLOWS FROM INVESTING ACTITIVIES:  
     Additions to property and equipment                                           (4,877)      (2,990)      (1,098)
     Additions to capitalized software                                               (262)      (1,086)        (515)
                                                                                  -------      -------      -------
       Net cash used in investing activities                                       (5,139)      (4,076)      (1,613)
                                                                                  -------      -------      -------
CASH FLOWS FROM FINANCING ACTIVITIES:  
     Proceeds from issuance of common stock, net                                   10,000       72,774          ---
     Proceeds from issuance of preferred stock and warrants, net                   19,688          ---          ---
     Proceeds from notes payable to related parties                                 5,000        4,122       35,000
     Payments on loans from related parties                                        (5,000)     (27,239)      (7,225)
     Proceeds from exercise of stock options                                        1,024          ---          ---
     Purchase of treasury shares                                                      ---          ---         (547)
                                                                                  -------      -------      -------
       Net cash provided by financing activities                                   30,712       49,657       27,228
                                                                                  -------      -------      -------
Increase (decrease) in cash                                                        (4,244)      19,811        3,528
Cash and cash equivalents, beginning of period                                     23,969        4,158          630
                                                                                  -------      -------      -------
Cash and cash equivalents, end of period                                          $19,725      $23,969      $ 4,158
                                                                                  -------      -------      -------
                                                                                  -------      -------      -------


Supplemental cash flow information:
     Interest paid                                                                $ 1,056      $ 3,267      $ 2,451
                                                                                  -------      -------      -------
                                                                                  -------      -------      -------
</TABLE>

                    See accompanying notes to consolidated financial statements.

                                               F-4

<PAGE>
                HIGHWAYMASTER COMMUNICATIONS, INC. AND SUBSIDIARY
               CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' AND
                              STOCKHOLDERS' EQUITY

                   (in thousands, except share information)
<TABLE>
                                                                                 Preferred Stock       Common Stock     Additional
                                                           General   Limited     ---------------    -------------------  Paid-in
                                                          Partners   Partners    Shares   Amount      Shares     Amount  Capital
                                                          -------------------    ---------------    -------------------  --------
<S>                                                        <C>       <C>         <C>      <C>       <C>          <C>     <C>
Partners' deficit at December 31, 1993                     $(5,193)   $ 1,377      ---    $  ---           ---    $---   $    ---
  Recapitalization                                           5,193     (1,377)     929       ---    13,650,000     137     (2,194)
  Issuance of common stock                                                                           4,154,329      41      9,571
  Purchase of treasury stock
  Accretion of discount -- Series B reedeemable
   preferred stock
    Net loss for year
                                                           ------------------    ---------------    ------------------   --------
Stockholders' equity (deficit) at December 31, 1994            ---        ---      929       ---    17,804,329     178      7,377
  Issuance of common stock -- Initial public offering                                                4,000,000      40     72,734
  Issuance of common stock -- Note exchange                                                            529,332       5     10,449
  Accretion of discount -- Series B redeemable
   preferred stock
  Cancellation of Series C preferred stock                                        (929)      ---
  Net loss for year
                                                           ------------------    ---------------    ------------------   --------
Stockholders' equity (deficit) at December 31, 1995            ---        ---      ---       ---    22,333,661     223   $ 90,560
  Issuance of common stock                                                                           1,818,018      18     22,707
  Issuance of Series D preferred stock                                           1,000       ---                           19,688
  Exchange of Series B preferred stock for common stock                                                864,000       9     10,791
  Accretion of discount -- Series B redeemable
   preferred stock
  Exercise of stock options                                                                            134,848       1      1,083
  Net loss for year
                                                           ------------------    ---------------    ------------------   --------
Stockholders' equity (deficit) at December 31, 1996        $   ---    $   ---    1,000    $   ---    25,150,527   $251   $144,829
                                                           ------------------    ---------------    ------------------   --------
                                                           ------------------    ---------------    ------------------   --------

<CAPTION>
                                                            Treasury Stock
                                                            -----------------    Accumulated
                                                            Shares     Amount      Deficit       Total
                                                            -----------------    ----------    --------
<S>                                                         <C>        <C>       <C>           <C>
Partners' deficit at December 31, 1993                          ---    $  ---     $     ---    $ (3,816)
  Recapitalization                                                                  (14,665)    (12,906)
  Issuance of common stock                                                                        9,612
  Purchase of treasury stock                                311,997      (547)                     (547)
  Accretion of discount -- Series B reedeemable
   preferred stock                                                                   (1,235)     (1,235)
    Net loss for year                                                               (25,881)    (25,881)
                                                            -----------------    ----------    --------
Stockholders' equity (deficit) at December 31, 1994         311,997      (547)      (41,781)    (34,773)
  Issuance of common stock -- Initial public offering                                            72,774
  Issuance of common stock -- Note exchange                                                      10,454
  Accretion of discount -- Series B redeemable
   preferred stock                                                                   (1,977)     (1,977)
  Cancellation of Series C preferred stock                                                          ---
  Net loss for year                                                                 (33,377)    (33,377)
                                                            -----------------    ----------    --------
Stockholders' equity (deficit) at December 31, 1995         311,997    $ (547)    $ (77,135)   $ 13,101
  Issuance of common stock                                                                       22,725
  Issuance of Series D preferred stock                                                           19,688
  Exchange of Series B preferred stock for common stock                                (843)      9,957
  Accretion of discount -- Series B redeemable
   preferred stock                                                                   (1,831)     (1,831)
  Exercise of stock options                                                                       1,084
  Net loss for year                                                                 (30,060)    (30,060)
                                                            -----------------    ----------    --------
Stockholders' equity (deficit) at December 31, 1996         311,997    $(547)     $(109,869)   $ 34,664
                                                            -----------------    ----------    --------
                                                            -----------------    ----------    --------
</TABLE>
           See accompanying notes to consolidated financial statements.

                                       F-5
<PAGE>

HIGHWAYMASTER COMMUNICATIONS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


1.   RECAPITALIZATION AND BUSINESS OVERVIEW

    

RECAPITALIZATION

    On April 24, 1992, By-Word Joint Venture L.P., a Delaware limited 
partnership, was formed with one general partner, By-Word Technologies, Inc. 
("By-Word") and one limited partner, the FBR Eighteen Corporation ("FBR"). 
FBR was wholly-owned by the Eighteen Wheeler Corporation ("Eighteen 
Wheeler"). On April 27, 1992, By-Word Joint Venture L.P. changed its name to 
HighwayMaster L.P. (the "Partnership").  At December 31, 1993, the 
approximate percentages of interest in the Partnership were as follows: 

    By-Word                                           39.55%
    FBR                                               58.99%
    Robert Hayes                                       1.08%
    Robert Folsom                                      0.38%

    On February 4, 1994, the Company was recapitalized in a transaction 
whereby, (i) holders of the stock of Eighteen Wheeler contributed such stock 
to a newly formed entity, HM Holding Corporation, in exchange for promissory 
notes in the aggregate principal amount of $9,291,050; 8,052,330 shares of 
common stock; and 929.105 shares of Series A Preferred Stock, (ii) individual 
partners contributed their interests in the Partnership to HM Holding 
Corporation in exchange for promissory notes in the aggregate principal 
amount of $1,508,950; 198,900 shares of common stock; and 150.895 shares of 
Series A Preferred Stock and (iii) By-Word contributed its interest in the 
Partnership and the residual rights to certain intellectual property 
previously licensed to the Partnership in exchange for 5,398,770 shares of 
common stock. The shares of Series A Preferred Stock were subsequently 
canceled in exchange for which the prior holders of stock in Eighteen Wheeler 
received 929.105 shares of Series B Preferred Stock and 929.105 shares of 
Series C Preferred Stock, and the individual partners received 150.895 shares 
of Series B Preferred Stock. As a result of the foregoing transactions, 
Eighteen Wheeler became a wholly-owned subsidiary of HM Holding Corporation. 
FBR and the Partnership were merged with and into Eighteen Wheeler, and the 
name of the surviving corporation was changed to HighwayMaster Corporation. 
By virtue of the merger, HighwayMaster Corporation became the successor in 
interest to the Partnership. These transactions are collectively referred to 
as the "Recapitalization." 

    In connection with the Recapitalization, the Company paid an aggregate of 
$733,000 in transaction and legal fees which were charged to earnings during 
1994.  Approximately $465,000 of these fees were paid to a stockholder of the 
Company. 

    From February 4, 1994 to December 31, 1994, certain stockholders of the 
Company contributed a total of $35.0 million in cash in exchange for the 
Company's common stock and notes payable (see Note 8). 

    In February 1995, HM Holding Corporation changed its name to 
HighwayMaster Communications, Inc. (the "Company"). Since the operations were 
conducted solely by the Partnership and the Company and no other party to the 
Recapitalization conducted operating activities, there was no change in the 
historical cost basis of the Company's assets and liabilities. Unless 
otherwise stated, references to the "Company" shall include HighwayMaster 
Communications, Inc. (formerly HM Holding Corporation) and its subsidiary and 
its predecessors, including the Partnership. 

                                     F-6
<PAGE>

BUSINESS OVERVIEW

    From April 24, 1992 (inception) through June 1993, the Company was in the 
development stage and its primary activities related to the design and 
development of its products. The Company began selling its products in the 
third quarter of 1993. 

    The Company operates a wireless enhanced-services network with both voice 
and data capabilities in 99% of the available cellular coverage areas in the 
United States and 100% of the A-Side cellular coverage areas in Canada. The 
Company's private network covers approximately 95% of the United States 
interstate highway system. Through this private network, the Company provides 
integrated mobile voice, data, tracking, and fleet management information 
services to trucking companies and private truck operators in the long-haul 
segment of the transportation industry. 

    The HighwayMaster system includes a Mobile Communication Unit (the 
"Mobile Communication Unit" or "Unit") installed in each truck and a 
proprietary dispatch software package developed by the Company for use by 
trucking companies. The Mobile Communication Unit transmits and receives 
voice and data communication to and from long-haul trucks through the 
Company's private network. In addition, the Unit contains a sophisticated 
navigational tracking device that enables dispatchers to obtain accurate 
position reports for trucks located anywhere in the United States and Canada. 
The Company's dispatch software package enables a trucking company to 
optimize the use of its fleet by processing data transmitted by Mobile 
Communication Units and performing a variety of fleet management functions.

    In the fourth quarter of 1996, the Company entered into a strategic 
business alliance with Prince ("Prince") to develop and provide AutoLink 
service for motorists in the United States and Canada.  The basic AutoLink 
product will provide an intelligent communications link from the car to an 
information services complex in order to provide emergency assistance, 
roadside assistance and information services to the occupants of the car, 
including remote tracking of stolen or missing vehicles.  HighwayMaster will 
be responsible for managing the network, providing software for the 
intelligent mobile unit in the car, assisting in managing various information 
services providers and billing the customer.  The AutoLink business alliance 
is currently in its preliminary stages and no revenues will be realized by 
the Company from AutoLink in 1997.

 2.  STOCK SPLIT
    
    On May 26, 1995, the Company's board of directors authorized, and a 
majority of stockholders approved, a one thousand nine hundred and 
fifty-for-one (1,950 for 1) common stock split effected in the form of a 
stock dividend, payable to shareholders of record on May 26, 1995.  The stock 
split has been given retroactive effect to January 1, 1994 (the year in which 
the Recapitalization to a corporate structure took place) in the accompanying 
financial statements.

 3.  COMPLETION OF INITIAL PUBLIC OFFERING AND NOTE EXCHANGE
    
    On June 28, 1995, the Company completed its initial public offering (the 
"Offering") of 4,000,000 shares of common stock at a price of $19.75 per 
share. Proceeds from the Offering totaled $72,774,000, net of underwriters' 
discounts and other offering expenses totaling $6,226,000.

    A portion of the proceeds from the Offering was used to retire notes 
payable to related parties in the aggregate principal amount of $27,239,000 
(see Note 8).  In addition, 529,332 shares of common stock were issued to 
retire notes payable to related parties (the "Note Exchange") in the 
aggregate principal amount of $10,454,000.  In connection with the foregoing, 
the unamortized balances of debt discount and debt issue costs associated 
with the indebtedness retired, in the aggregate amount of $6,980,000, were 
charged to expense and are reported in the accompanying consolidated 
statements of operations as an extraordinary item, "loss on extinguishment of 
debt."

                                     F-7
<PAGE>

4.   SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

BASIS OF PRESENTATION

    The consolidated financial statements include those of HighwayMaster 
Communications, Inc. and HighwayMaster Corporation. All significant 
intercompany accounts and transactions have been eliminated in consolidation. 

ESTIMATES INHERENT IN THE PREPARATION OF FINANCIAL STATEMENTS

    The preparation of financial statements in conformity with generally 
accepted accounting principles requires management to make estimates and 
assumptions that affect the reported amounts of assets and liabilities and 
disclosure of contingent assets and liabilities at the date of the financial 
statements and the reported amounts of revenues and expenses during the 
reporting period.  Actual results could differ from those estimates.

REVENUE RECOGNITION

    Revenues from equipment sales and licensing of equipment software are 
generally recognized at the time the Units are shipped to customers. In 
certain cases the Company has installed Units in customers' trucks on a trial 
basis, permitting customers to return the Units with limited or no penalty. 
In such cases, the Company recognizes revenue when the trial period expires. 
Revenues generated from voice and data communications services are recognized 
upon customer usage. Until 1996, AT&T invoiced and collected payments from 
all of the Company's customers for voice and data communication services 
associated with the Company's equipment. The Company records as revenue an 
amount equal to the payments received from AT&T, and the remainder of these 
service charges, including amounts for call processing, enhanced long 
distance services and customer collection fees, is retained by AT&T under the 
terms of the AT&T Contract (see Note 11).  Beginning in the third quarter of 
1996, the Company started providing customer billing, credit and collection 
activities for voice and data communication services for certain customers.

CASH AND CASH EQUIVALENTS

    Cash and cash equivalents include cash on hand and investments with 
purchased original maturities of three months or less.  Such investments 
consist of short-term commercial paper, U.S. Government and U.S. Government 
Agency obligations, and money-market accounts.  The Company has approximately 
$19,500,000 of cash and cash equivalents in excess of FDIC insured limits at 
December 31, 1996.  The Company has not experienced any losses on its cash 
and cash equivalents.

BUSINESS AND CREDIT CONCENTRATIONS

    The majority of the Company's business activities and related accounts 
receivable are with customers in the interstate trucking industry. The 
receivables generated from equipment sales are generally secured by the 
respective Units shipped to the customer.  Allowances have been provided for 
amounts which may eventually become uncollectible and to provide for any 
disputed charges.  No customer accounted for more than 10% of total 
consolidated revenues for the years ended December 31, 1996 and 1995.  During 
1994, one interstate trucking company accounted for approximately $2.8 
million, or 21%, of total consolidated revenues.

INVENTORY

    Inventory consists primarily of component parts and finished products 
which are valued at the lower of cost or market. Cost is determined using the 
first-in, first-out (FIFO) method. 

                                     F-8
<PAGE>

PROPERTY AND EQUIPMENT

    Property and equipment are stated at cost and are depreciated on a 
straight-line basis over the estimated useful lives of the various classes of 
assets, which range from three to five years. Maintenance and repairs are 
charged to operations while renewals or betterments are capitalized. 

ACCRUED LOSS ON SHORT-TERM CONTRACTS

    The Company contracts with existing customers to upgrade previously 
installed earlier generation Mobile Communication Units to current generation 
Units.  In the event the cost of the equipment to be provided for upgrade 
contracts is expected to exceed the sum of the upgrade contract price and the 
estimated fair market value of the equipment to be returned as a result of 
the upgrade, a loss is recognized.
 
RESEARCH AND DEVELOPMENT COSTS

    The Company expenses research and development costs as incurred.  During 
1996, 1995 and 1994, the Company expensed $1,294,000, $1,539,000 and 
$1,211,000 in research and development costs for hardware and software that 
are reflected in Engineering Expenses in the Consolidated Statements of 
Operations.

SOFTWARE DEVELOPMENT COSTS

    Purchased computer software costs are amortized using the straight-line 
method over expected useful lives which range from 18 to 60 months.  Payments 
to the Company's service providers for software enhancements, to which the 
service providers retain ownership, are capitalized as software development 
costs. These costs are amortized over the lives of the service contracts, 
varying from 12 to 36 months.

    Costs related to the research, design and development of computer 
software are charged to research and development expense as incurred. During 
1996, 1995, and 1994, the Company expensed $673,000, $804,000, and $330,000, 
respectively, in research and development costs that are reflected in 
Engineering Expenses in the Consolidated Statements of Operations. Software 
development costs that meet the capitalization requirements of Statement of 
Financial Accounting Standards No. 86, "Accounting for the Costs of Computer 
Software to be Sold, Leased, or Otherwise Marketed" are capitalized.  
Software development costs are amortized using the straight line method over 
eighteen months or the estimated economic life of the product, whichever is 
less.

    As of December 31, 1996 and 1995, the unamortized portion of computer 
software costs was $873,000 and $1,199,000, respectively. Amortization of 
such costs charged to expense during 1996, 1995, and 1994 was $504,000, 
$278,000, and $223,000, respectively. 

ADVERTISING COSTS

    Advertising costs are expensed as incurred.  During 1996, 1995, and 1994 
the Company expensed $1,637,000, $2,041,000 and $941,000, respectively, in 
advertising costs that are reflected in Sales and Marketing Expenses in the 
Consolidated Statements of Operations.

INCOME TAXES

    The Company accounts for income taxes pursuant to Statement of Financial 
Accounting Standards No. 109, "Accounting For Income Taxes" ("SFAS 109"). 
Deferred income taxes are calculated using an asset and liability approach 
wherein deferred taxes are provided for the tax effects of basis differences 
for assets and liabilities arising from differing treatments for financial 
and income tax reporting purposes. Valuation allowances against deferred tax 
assets are provided where appropriate. 

                                     F-9
<PAGE>

EARNINGS PER SHARE

    Net loss per share for the years ended December 31, 1996 and 1995 
("primary loss per share") was computed by dividing the net loss, increased 
by the accretion of discount on the Series B Preferred Stock ($1,831,000 and 
$1,977,000 in 1996 and 1995, respectively), by the weighted average number of 
shares outstanding during the year.

    Stock options granted with exercise prices below the $19.75 initial 
public offering price and shares of common stock issued during the 
twelve-month period preceding the initial filing date of the Offering have 
been included in the calculation of weighted average shares outstanding 
through the date of the Offering (June 28, 1995).  The stock options were 
included in the calculation of common stock equivalents using the treasury 
stock method.  Stock options are excluded from the calculation of weighted 
average shares outstanding subsequent to the date of the Offering since their 
effect would be anti-dilutive.

    Pro forma net loss per share (unaudited) was computed by dividing the pro 
forma net loss for the year ended December 31, 1994 by the pro forma weighted 
average number of shares outstanding during the year.   Pro forma net loss 
was calculated by increasing the net loss for 1994 by $1,481,000, 
representing interest expense on the $10.8 million of notes payable related 
to the Recapitalization for the period January 1, 1994 to February 4, 1994 
($134,000) and the accretion of discount on the Series B Preferred Stock for 
the period from January 1, 1994 to December 31, 1994 ($1,347,000).  The pro 
forma weighted average number of shares was calculated assuming that all 
shares issued in the Recapitalization were issued as of January 1, 1994.
 
    Supplemental net loss per share (unaudited) is presented below to show 
what loss per share would have been for 1996 assuming the shares issued in 
September 1996 to retire indebtedness and the Series B Preferred Stock had 
been issued as of January 1, 1996 and the associated indebtedness and Series 
B Preferred Stock had been retired as of January 1, 1996.  Supplemental net 
loss per share (unaudited) for the year ended December 31, 1996 is based on 
the weighted average number of shares of common stock used in the primary 
loss per share calculation plus the number of additional weighted average 
shares (1,384,648) that would have been outstanding had $12,662,000 of 
indebtedness and $10,800,000 of Series B Preferred Stock been retired at 
January 1, 1996.  For the purposes of computing supplemental net loss per 
share (unaudited), the net loss for the year ended December 31, 1996 was 
increased by $1,831,000 for the accretion of discount on the Series B 
Preferred Stock and was reduced by $1,659,000 and $1,831,000 for the interest 
expense on the indebtedness and the accretion of discount on the Series B 
Preferred Stock, respectively.  Supplemental net loss per share (unaudited) 
for the year ended December 31, 1996 is as follows:

    Supplemental net loss before extraordinary item                 ($1.17)
    Extraordinary item                                                (.01)
                                                                    ------ 
    Supplemental net loss per share                                 ($1.18)
                                                                    ------ 
                                                                    ------ 
    Weighted average number of shares outstanding used 
      in the supplemental net loss per share calculation        24,147,512 
                                                                ---------- 
                                                                ---------- 


FAIR VALUE OF FINANCIAL INSTRUMENTS

    The carrying amount of cash and cash equivalents, accounts receivable,
accounts payable and accrued liabilities approximates fair value because of
their short-term maturity.

RECLASSIFICATIONS

    Certain operating expenses for 1994 and 1995 have been reclassified to
conform to the 1996 presentation.

                                      F-10 
<PAGE>

5.   LEASING OPERATIONS

    The Company leases its products to certain customers with terms ranging 
from three to five years. The related contracts are accounted for as sales- 
type leases. As of December 31, 1996, minimum future lease payments expected 
to be received were: 

    1997                                           $  513,000 
    1998                                              513,000 
    1999                                              445,000 
    2000                                              154,000 
                                                   ---------- 
      Total minimum future lease payments           1,625,000 
    Less: unearned interest income                   (157,000)
                                                   ---------- 
      Total receivable balance                     $1,468,000 
                                                   ---------- 
                                                   ---------- 

    Of the receivable balance above, $423,000 is included in other short-term 
receivables and $1,045,000 is included in long-term receivables in the 
Consolidated Balance Sheet at December 31, 1996.

    In March 1997, a customer who represents $1,239,000 of the total 
receivable balance notified the Company that it intended to terminate its 
long-term lease commitment.  Although the lease agreement contains 
termination penalties, the Company believes that it may be necessary to 
write-off a portion of the receivable as a result of the lease termination.  
The Company estimates that the amount of the write-off may range from 
approximately $500,000 to $1,000,000, although the Company is continuing to 
evaluate its position under the lease and no final decision has been reached. 
No provision for loss has been recorded in the Consolidated Financial 
Statements.

6.  INVENTORY

    Inventory consisted of the following:

                                                       DECEMBER 31           
                                              ------------------------------ 
                                                 1996                1995    
                                              ----------          ---------- 
    Complete systems                          $1,265,000          $1,968,000 
    Component parts                            2,193,000           2,231,000 
                                              ----------          ---------- 
                                              $3,458,000          $4,199,000 
                                              ----------          ---------- 
                                              ----------          ---------- 

    During 1996, the Company recorded a write-down of approximately $1.9 
million to adjust the carrying value of used earlier generation mobile unit 
component parts inventory to its estimated net realizable value.

7.  PROPERTY AND EQUIPMENT
    
Property and equipment consisted of the following: 
    
                                                       DECEMBER 31           
                                              ------------------------------ 
                                                 1996                1995    
                                              ----------          ---------- 
    Machinery and equipment                   $2,234,000          $1,692,000 
    Vehicles                                     370,000             370,000 
    Computers and office equipment             2,087,000           1,166,000 
    Network Services Center                    4,841,000                 --- 
    Construction-in-progress                         ---           1,499,000 
                                              ----------          ---------- 
                                               9,532,000           4,727,000 
    Less: accumulated depreciation            (1,776,000)           (800,000)
                                              ----------          ---------- 
                                              $7,756,000          $3,927,000 
                                              ----------          ---------- 
                                              ----------          ---------- 

                                       F-11
<PAGE>

    Total depreciation expense charged to operations during 1996, 1995 and 1994
was $1,041,000, $395,000 and $296,000, respectively.

8.   NOTES PAYABLE TO RELATED PARTIES

    As a part of the Recapitalization, the Company issued promissory notes in
the amount of $10.8 million, 13,650,000 shares of common stock, 1,080 shares of
Series B Preferred Stock and 929 shares of Series C Preferred Stock (see
Note 1). 

    Also as part of the Recapitalization, the holders of the stock of Eighteen
Wheeler contributed such stock to the Company in exchange for notes in the
aggregate principal amount of approximately $9.3 million, 8,052,330 shares of
common stock and 929.1 shares of Series A Preferred Stock; individual partners
contributed their interest in the Partnership to the Company in exchange for
notes in the aggregate principal amount of approximately $1.5 million, 198,900
shares of common stock and 150.895 shares of Series A Preferred Stock; and
By-Word contributed its interest in the Partnership and the residual rights to
certain intellectual property previously licensed to the Partnership in exchange
for 5,398,770 shares of common stock. The Company also entered into a
Subscription Agreement dated February 4, 1994 (the "Subscription Agreement")
providing for the sale by the Company of up to $45 million aggregate principal
amount of promissory notes and up to an aggregate of 5,850,000 shares of common
stock of the Company. Pursuant to the Subscription Agreement, (i) on February 4,
1994, the Company issued $10.0 million aggregate principal amount of promissory
notes and 975,000 shares of common stock of the Company for $10.0 million;
(ii) on March 28, 1994, the Company issued $20.0 million aggregate principal
amount of promissory notes and 2,437,500 shares of common stock for
$20.0 million; and (iii) on October 17, 1994, the Company issued $5.0 million
aggregate principal amount of promissory notes and 741,848 shares of common
stock for $5.0 million. The coupon interest rate on the outstanding principal
amount of the notes was 8% per annum. The notes were discounted using an
effective borrowing rate of approximately 18%.

    Pursuant to the Note Exchange Agreement entered into in May 1995, the
Company and noteholders agreed to modify the requirements for repayment of the
notes upon closing of a public offering.  Accordingly, upon completion  of the
Offering (see Note 3) (i) 50% of the outstanding principal amount of the notes
held by members of the Carlyle Group, Clipper and Chase were paid in cash from
proceeds of the Offering, an aggregate of $5.0 million of the principal amount
of such notes were exchanged for common stock at the Offering price (but not
registered for sale in the Offering), and the remaining principal balance of the
notes held by such noteholders continue to be held by such noteholders after the
Offering; (ii) 50% of the outstanding principal amount of the notes held by Erin
Mills affiliates were paid in cash from the proceeds of the Offering, and the
remaining principal balance of the notes held by Erin Mills affiliates were
exchanged for common stock at the Offering price (but not registered for sale in
the Offering); (iii) 50% of the notes held by Mr. Folsom and Mr. Hayes were paid
in cash from the proceeds of the Offering, and the remaining principal balance
of the notes held by Mr. Folsom and Mr. Hayes were exchanged for common stock at
the Offering price (but not registered for sale in the Offering) and; (iv) the
maturity date for the principal amount of the notes was changed to December 31,
1996.

    In April 1995, May 1995 and June 1995, certain stockholders of the Company,
other than certain management stockholders, entered into Note Purchase
Agreements with the Company pursuant to which such stockholders purchased pro
rata, in proportion to their stock ownership, short-term 9% promissory notes
from the Company in the aggregate principal amount of $1.6 million, $1.4 million
and $1.1 million, respectively.  These notes, together with accrued interest
thereon, were repaid in June, 1995 with proceeds from the Offering.

    Pursuant to the Note Exchange Agreement and the Note Purchase Agreements an
aggregate principal amount of $27,239,000 of notes payable to related parties
were repaid with proceeds from the Offering.  In addition, 529,332 shares of
common stock were issued to retire notes payable to related parties (the "Note
Exchange") in the aggregate principal amount of $10,454,000.  In connection with
the foregoing, the unamortized balances of debt discount and debt issue costs
associated with the indebtedness retired, in the aggregate amount of $6,980,000
were charged to expense 

                                     F-12
<PAGE>

and are reported in the accompanying consolidated statements of operations as 
an extraordinary item, "loss on extinguishment of debt."

    After the above repayments, $12,662,000 principal amount of notes payable 
to related parties remained outstanding at December 31, 1995.  These notes 
had an 8% per annum coupon rate and a maturity date of December 31, 1996.  
The notes were discounted using an effective borrowing rate of approximately 
18%.

    On March 29, 1996, the Company and the noteholders entered into a Note 
Extension Option Agreement (the "Extension Option").  Under the Extension 
Option, the Company had the unilateral right to elect to extend the maturity 
date of the notes to June 30, 1997.  Because of the availability of the 
Extension Option to the Company, the notes were classified as a long-term 
liability at December 31, 1995.

    On September 27, 1996, the Company, the Erin Mills Stockholders, the 
Carlyle Stockholders and certain other holders of outstanding securities of 
the Company entered into a Recapitalization Agreement (the "1996 
Recapitalization Agreement"), and consummated the 1996 Recapitalization 
Transactions contemplated thereby.  In particular, upon the terms and 
conditions set forth in the 1996 Recapitalization Agreement, (i) the Company 
repaid in full the principal amount of and interest accrued on certain 
promissory notes in the aggregate principal amount of $5.0 million executed 
in favor of an Erin Mills  Stockholder in order to repay certain advances 
made by such Erin Mills Stockholder in August and September 1996 to enable 
the Company to meet its short-term working capital and other requirements, 
(ii) the Company issued an aggregate of 800,000 shares of Common Stock to two 
Erin Mills Stockholders in exchange for aggregate cash payments in the amount 
of $10.0 million, (iii) the Company issued an aggregate of 864,000 shares of 
Common Stock to three Erin Mills Stockholders and two other persons in 
exchange for the surrender to the Company for cancellation of all outstanding 
shares of Series B Preferred Stock, (iv) the Company paid to the Carlyle 
Stockholders a portion of the accrued and unpaid interest on certain 
promissory notes in the aggregate principal amount of $12,662,000 (the 
"Carlyle Notes") executed in favor of the Carlyle stockholders, and (v) the 
Company issued an aggregate of 1,018,018 shares of Common Stock in exchange 
for the surrender of the Carlyle Notes for cancellation.  In connection with 
the foregoing, the unamortized balances of debt discount and debt issue costs 
associated with the indebtedness retired, in the aggregate amount of 
$317,000, were charged to expense and are reported in the accompanying 
consolidated statements of operations as an extraordinary item, "loss on 
extinguishment of debt."























                                     F-13
<PAGE>

9.  INCOME TAXES

    As discussed in Note 1, the Company's predecessor business activities 
prior to February 4, 1994 were conducted as a Partnership which was not 
subject to income tax. The profits and losses of the Partnership were 
reflected on the tax returns of the individual partners. Accordingly, the 
financial statements of the Partnership for periods prior to February 4, 1994 
do not include any provision for income taxes. 

    Effective with the Recapitalization on February 4, 1994, the Company 
became a corporation and the consolidated financial statements reflect the 
tax effects of the Company's activities from that date. The tax effects for 
the period January 1 to February 4, 1994 and arising from the Company's 
conversion to a corporation on February 4, 1994 were not material. 

    The components of the Company's net deferred tax asset were as follows: 

                                                 DECEMBER 31          
                                       ------------------------------ 
                                           1996              1995     
                                       ------------      ------------ 
Deferred tax assets
  Step-up of tax basis in assets        $ 1,543,000       $ 1,183,000 
  Research and development credit           254,000           340,000 
  Accrued warranty                           93,000           298,000 
  Recapitalization costs                    266,000           369,000 
  Allowance for doubtful accounts           263,000           277,000 
  Accrued interest                          332,000           590,000 
  Inventory                                 104,000           146,000 
  Accrued vacation                           67,000            89,000 
  Net operating loss carryforwards       32,352,000        18,457,000 
                                       ------------      ------------ 
  Gross deferred tax assets              35,274,000        21,749,000 
  Valuation allowance                   (34,745,000)      (21,551,000)
                                       ------------      ------------ 
  Net deferred tax asset                    529,000           198,000 
Deferred tax liability
  Depreciation                             (460,000)         (158,000)
  Other                                     (69,000)          (40,000)
                                       ------------      ------------ 
Net deferred tax asset                 $        ---      $        --- 
                                       ------------      ------------ 
                                       ------------      ------------ 


         The following is a reconciliation of the provision for income taxes 
at the U.S. federal income tax rate to the income taxes reflected in the 
Consolidated Statements of Operations:

                                                 DECEMBER 31                
                                 ------------------------------------------ 
                                     1996           1995           1994     
                                 ------------    -----------    ----------- 
Income tax benefit at 
  Federal statutory rate         $(10,220,000)   $(8,784,000)   $(8,800,000)
Net operating losses not 
  benefitted                       10,146,000      8,735,000      8,761,000 
Other                                  74,000         49,000         39,000 
                                 ------------    -----------    ----------- 
    Income tax benefit           $        ---    $       ---    $       --- 
                                 ------------    -----------    ----------- 
                                 ------------    -----------    ----------- 

                                      F-14 
<PAGE>

    At December 31, 1996, the Company had net operating loss carryforwards 
aggregating approximately $95.2 million which expire in various years between 
2007 and 2011.  Due to the issuance of certain notes payable in connection 
with the Recapitalization discussed in Note 8, there was a change in 
ownership under the Internal Revenue Code which limits the annual utilization 
of these carryforwards and will cause some amount of the carryforwards to 
expire unutilized. Any additional changes in ownership subsequent to the 
Recapitalization could also result in additional limitations of loss 
carryforwards. 

10.  PARTNERS'/STOCKHOLDERS' EQUITY INSTRUMENTS AND RELATED MATTERS

ISSUANCE OF SERIES D PREFERRED STOCK

    On September 27, 1996, the Company and Southwestern Bell Wireless 
Holdings, Inc. ("SBW"), a wholly owned subsidiary of SBC Communications Inc. 
("SBC"), consummated certain transactions, including but not limited to (i) 
the issuance of 1,000 shares of a new series of preferred stock, par value 
$0.01 per share, designated as Series D Participating Convertible Preferred 
Stock ("Series D Preferred Stock") in consideration of a cash payment in the 
amount of $20.0 million and (ii) the issuance to SBW of certain Warrants.

    Each outstanding share of Series D Preferred Stock is convertible into 
1,600 shares of Common Stock at the option of SBW.  In addition, at such time 
as SBW obtains certain regulatory relief required in order for it to offer 
long-distance telephone services, all outstanding shares of Series D 
Preferred Stock will automatically convert into an equal number of shares of 
a new series of common stock designated as Class B Common Stock.

    Each outstanding share of Class B Common Stock will be convertible into
1,600 shares of Common Stock at the option of SBW.  The holders of Class B
Common Stock will be entitled to receive dividends and liquidating distributions
in an amount equal to the dividends and liquidating distributions payable on or
in respect of the number of shares of Common Stock into which such shares of
Class B Common Stock are then convertible.  The holders of Common Stock and
Class B Common Stock will generally have identical voting rights and will vote
together as a single class, with the holders of Class B Common Stock being
entitled to a number of votes equal to the number of shares of Common Stock into
which the shares of Class B Common Stock held by them are then convertible.  In
addition, the holders of Class B Common Stock will be entitled to elect one
director of the Company (or two directors if SBW and its affiliates beneficially
own at least 20% of the outstanding shares of Common Stock on a fully diluted
basis) and will have the right to approve certain actions on the part of the
Company.

    The Warrants issued to SBW entitle the holder thereof to purchase (i)
3,000,000 shares of Common Stock at an exercise price of $14.00 per share and
(ii) 2,000,000 shares of Common Stock at an exercise price of $18.00 per share. 
The Warrants will expire on September 27, 2001.

SERIES B PREFERRED STOCK

    As part of the Recapitalization described in Note 1, the Company issued
1,080 shares of its Series A Preferred Stock. On February 28, 1994, all shares
of the Series A Preferred Stock were reacquired by the Company and the
respective holders were issued shares of Series B and Series C Preferred Stock.
The Preferred Stock was recorded at its fair value as of the date of issuance. 
The Series C Preferred Stock was canceled in 1995.

    The Series B Preferred Stock was required to be redeemed by the Company at
a price of $10,000 per share ($10,800,000 in the aggregate) if the purchasers of
the notes and common stock under the Subscription Agreement had realized a
certain required return (as defined) on their investment in the Company.  In
contemplation of the transactions consumated on September 27, 1996, it was
determined that the Series B Preferred Stock would qualify for redemption at its
maturity date, February 4, 1997.  Accordingly, the Series B Preferred Stock was
extinguished pursuant to the 1996 Recapitalization Agreement by the issuance of
864,000 shares of Common Stock (see Note 8).


                                      F-15 
<PAGE>

SETTLEMENT AGREEMENT AND BY-WORD EXCHANGE AGREEMENT

    In connection with a lawsuit brought by a former employee of By-Word and
the employee's spouse (collectively, the "Plaintiffs") against By-Word, the
Company and certain of its stockholders and affiliates (collectively, the
"Defendants"), in which the Plaintiffs alleged certain claims for, among other
things, breach of employment and personal injury, the Plaintiffs entered into a
Compromise Settlement and Mutual Release, in September 1994 (the "Settlement
Agreement"), pursuant to which the plaintiffs rescinded the original purchase of
the shares of By-Word, and the Plaintiffs settled all claims against the
Defendants in exchange for $1,653,000 (the "Settlement Amount"). The Company
loaned By-Word the Settlement Amount pursuant to a promissory note dated
September 30, 1994, in the amount of $1,653,000 (the "By-Word Note") to pay the
Plaintiffs under the Settlement Agreement. 

    Pursuant to an agreement dated October 1, 1994, between the Company and
By-Word (the "By-Word Exchange Agreement"), By-Word contributed 5,398,770 shares
of the Company's common stock to the Company in exchange for which the Company
issued 5,086,773 shares of the Company's common stock to By-Word and assumed
By-Word's obligations under the By-Word Note. The Company recorded the
transaction as an increase in treasury shares. The obligations assumed from
By-Word by the Company were in excess of the fair value of the stock received;
therefore, the amount of $1,106,000 of obligations assumed over the fair value
of the stock was recorded as an expense that is reflected in General and
Administrative Expenses in the 1994 Consolidated Statement of Operations. 
By-Word instituted dissolution proceedings on November 30, 1994 and distributed
its shares of common stock of the Company then held by By-Word pro rata to the
former shareholders by By-Word. 

INCENTIVE PLAN AND OTHER

    Pursuant to a 1994 Stock Option Plan, as amended,(the "Plan") options may
be granted to employees for the purchase of an aggregate of up to 2,474,462
shares of the Company's common stock. The Plan requires that the exercise price
for each stock option be not less than 100% of the fair market value of common
stock at the time the option is granted. Both nonqualified stock options and
incentive stock options, as defined by the Internal Revenue Code of 1986, as
amended, may be granted under the Plan. Options granted under the Plan vest 20%
on the date of grant and 20% on each of the following four anniversary dates of
the date of grants and expire six years from the date of grant.

    The Company applies APB Opinion No. 25 and related interpretations in
accounting for the Plan.  Accordingly, no compensation cost has been recognized
for options issued under the Plan.  Had compensation cost been determined based
on the fair market value at the grant dates for awards under the Plan consistent
with the method provided by SFAS 123, the Company's net loss and net loss per
share would have been increased to the pro forma amounts indicated below:

                                            FOR THE YEAR ENDED DECEMBER 31,
                                            -------------------------------
                                                1996              1995     
                                            ------------      -------------
Net loss                    As reported     $(30,060,000)     $(33,377,000)
                            Pro forma       $(30,584,000)     $(33,458,000)

Primary net loss per share 
                            As reported     $      (1.40)     $      (1.73)
                            Pro forma       $      (1.42)     $      (1.74)


                                      F-16
<PAGE>

    The fair value of each option grant is estimated on the date of grant using
the Black-Scholes option pricing model with the following weighted average
assumptions used for grants during the years ended December 31, 1996 and 1995:
                                       
                                            FOR THE YEAR ENDED DECEMBER 31,
                                            -------------------------------
                                                1996                1995
                                                ----                ----
Dividend                                          --                  --
Expected volatility                            74.02%              70.90%  
Risk free rate of return                        6.24%               6.80%
Expected life in years                          6.00                6.00     

    A summary of the status of the Companys's Plan as of December 31, 1996,
1995 and 1994, and changes during the years ended on those dates is presented
below:

<TABLE>
                                         1996                       1995                        1994
                                         ----                       ----                        ----
                                        Weighted                   Weighted                   Weighted
                                        Average                    Average                     Average 
                                        Exercise                   Exercise                   Exercise
                             Shares      Price       Shares         Price       Shares         Price
                             ------      -----       ------         -----       ------         -----
<S>                         <C>          <C>       <C>             <C>         <C>             <C>

Outstanding at                              
   beginning of year        1,974,462     $7.58    1,947,144         $7.58            --           --
Granted                       266,000      7.73       27,318          7.58      1,947,144       $7.58

Exercised                    (134,848)     7.59           --            --            --           --

Forfeited                     (62,316)     7.62           --            --            --           --
                            ---------     -----     ---------         -----     ---------       -----
Outstanding at             
   end of year              2,043,298     $7.61     1,974,462         $7.58     1,947,144       $7.58
                            ---------     -----     ---------         -----     ---------       -----
                            ---------     -----     ---------         -----     ---------       -----

Options exercisable         
  at end of year            1,565,165     $7.58     1,496,496         $7.58     1,338,994       $7.58
                            ---------     -----     ---------         -----     ---------       -----
                            ---------     -----     ---------         -----     ---------       -----

Weighted average 
  value of options granted
  during the year                         $5.51                      $12.77
                                          -----                      ------
                                          -----                      ------

</TABLE>

                                        F-17
<PAGE>

     The following table summarizes information about stock options 
outstanding under the Plan at December 31, 1996:

                                        Options               Options
                                     Outstanding            Exercisable
                                     -----------            -----------

Number of options                      2,043,298               1,565,165
Range of exercise prices          $7.58 to $7.75          $7.58 to $7.75
Weighted average remaining
   contractual life in years                 3.8                     3.6
Weighted average exercise price            $7.61                   $7.58     
                   


              
    During April 1995, the Company granted options outside of the Plan to a 
director of the Company to purchase 3,798 shares of common stock. The options 
were immediately exercisable for a term of six years at a price of $7.58 per 
share.  The fair value of the option grant was estimated to be approximately 
$12.79 per option on the date of grant using the Black-Scholes option pricing 
model with the following weighted average assumptions: no expected dividend 
yield; an expected life of six years; expected volatility of 70.09 percent; 
and a risk free interest rate of 7.00 percent.  Approximately $32,000 was 
charged to compensation cost during 1995 for the options.  All such options 
were unexercised at December 31, 1996.

RETIREMENT PLAN

    In December 1994, the Company established the 401(k) Retirement Investment
Profit-Sharing Plan covering substantially all employees.  The Company did not
make matching contributions to the Plan in either 1996, 1995 or 1994. 

PARTNER'S DEFICIT AND OTHER

    Capital account allocations for financial reporting purposes, which are
different than capital account allocations for tax purposes, reflect the net
profits and losses from operations allocated each year as defined in the
Partnership Agreement. 

11. TERMINATION OF AT&T CONTRACT

         The Company and AT&T were parties to a contract (the "AT&T 
Contract") under which AT&T provided enhanced call processing, data 
management services and long-distance network transport services through a 
switching complex owned and operated by AT&T.  The AT&T Contract was 
terminated by AT&T effective June 29, 1996.  However, AT&T continues to 
provide services for certain Company customers without a formal contract 
pursuant to AT&T's obligations with respect to its existing service 
agreements with such customers.

12.  COMMITMENTS AND CONTINGENCIES

LITIGATION

         On February 16, 1996, the Company filed a lawsuit against AT&T Corp.
("AT&T") in the U.S. District Court, Northern District of Texas, Dallas
Division.  The Company is seeking preliminary and permanent injunctive relief
restraining AT&T from using and disclosing the Company's trade secrets and
proprietary information relating to its mobile communications technology.  In
July 1996, AT&T filed counterclaims essentially mirroring the Company's claims.


                                      F-18
<PAGE>

         In September and October 1996, both the Company and AT&T filed 
additional claims against each other related to breach of contract and 
various tortious activities.  AT&T seeks an injunction, a declaratory 
judgment defining the parties' intellectual property rights, actual and 
punitive damages and attorneys' fees in connection with its counterclaims. 
The Company seeks a declaration that the patents issued to AT&T using the 
Company's proprietary information are invalid and should be transferred from 
AT&T to the Company. The Company also brought Texas Deceptive Trade Practices 
Act ("DTPA") claims against AT&T and seeks actual, punitive and treble 
damages and attorneys' fees in connection with its claims. Additionally, the 
Company's amended complaint added Lucent Technologies, Inc. ("Lucent") as an 
additional defendant, to which AT&T transferred certain of the patents at 
issue in the lawsuit.

   In November 1996, AT&T filed a Partial Motion to Dismiss the Company's 
DTPA claims, various tort claims and the patent invalidity charges. 
Additionally, in November, 1996, Lucent filed a motion to dismiss all of the 
Company's claims against Lucent. In December 1996, the Company filed a 
response to AT&T's partial motion to dismiss and a response to Lucent's 
motion to dismiss. A hearing on the parties' motions is currently scheduled 
for May 1997.

     On December 14, 1995 and on February 23, 1996, lawsuits were filed by
certain plaintiffs against the Company and its directors, along with the lead
underwriters for the Company's Offering. The plaintiff in each suit sought
securities class-action certification and purported to represent all similarly
situated shareholders, who bought stock in the Company pursuant to its Offering
in June 1995 or immediately thereafter.  The plaintiffs sought unspecified
damages and alleged that the Company's registration statement, prospectus and
other communications in its Offering contained false and materially misleading
statements.  The two lawsuits were consolidated into one.  On November 4, 1996,
the Court entered a Stipulation and Order of Dismissal which was signed by all
parties, including proposed plaintiffs-in-intervention.  This action dismissed
the pending litigation with prejudice, precluding these same plaintiffs from
refiling the same claims in the future.  The dismissal of this action did not
involve any payment on the part of the Company or any other defendant.

    The Company is involved in other litigation matters that normally arise in
the course of conducting its business. These matters are not considered to be of
a material nature nor would they have a material effect on the business
activities or continued operations of the Company.

GTE AND EDS CONTRACTS

         A subsidiary of GTE, GTE Telecommunications Services, Inc. 
("GTE-TSI"), and a subsidiary of Electronic Data Systems, Inc. ("EDS"), 
perform certain "clearinghouse" functions for the Company which include, 
among other things, validation and verification of roaming numbers and 
provision and routing of call delivery information. The Company's agreement 
with GTE-TSI expires in March 1998, with certain renewal options by the 
Company after that date. The agreement with GTE-TSI may be renewed by the 
Company for up to ten additional one-year terms after expiration at a 
reasonable price to be determined solely by GTE-TSI. The agreement with EDS 
expires in August 1998 with successive automatic renewal terms of one-year 
thereafter, unless terminated at the option of either party upon 60 days' 
notice prior to any expiration date. Another subsidiary of GTE, GTE 
MobileComm, indirectly provides a significant amount of cellular coverage for 
the HighwayMaster system and pays all cellular carriers in the HighwayMaster 
system for HighwayMaster, billing the Company on a monthly basis.  The term 
of the current agreement with GTE MobileComm expires in March 1999.  The 
aggregate future minimum payments associated with these agreements were as 
follows as of December 31, 1996: 

             1997                               $1,080,000
             1998                                  680,000
             1999                                  120,000
                                                ----------
                                                $1,880,000
                                                ----------
                                                ----------

    Costs related to these contracts are included as cost of service revenues
in the Consolidated Statements of Operations. 

                                       F-19
<PAGE>

EMPLOYMENT AGREEMENTS

    Two officers of the Company entered into employment contracts with
HighwayMaster Corporation effective February 1994 and continuing through the
fifth anniversary of the consummation of the Offering (see Note 3), unless
terminated earlier in the event of death, permanent disability, for "cause" or,
under certain conditions, voluntarily. Under the employment contracts, either
HighwayMaster Corporation or the individuals may terminate employment, without
liability, at any time after February 1996 upon one year's written notice to the
other party. The terms of the contracts provide for an annual base salary
($399,300 at December 31, 1996) for each officer, with annual increases each
year equal to 10%. Each officer shall also receive annual bonuses during the
term of his contract, calculated as defined in the contracts. In addition, the
officers may receive discretionary bonuses at the sole discretion of the board
of directors of HighwayMaster Corporation. During 1996, 1995 and 1994, no
bonuses were earned by the employees. The employment contracts provide for a
severance payment equal to the remaining amount of salary payable under the
contract in the event of termination other than for "cause". The employment
contracts also provide that each of the officers is subject to a covenant not to
compete during the period that compensation is paid under his employment
agreement and for 24 months thereafter. 

    A third officer of the Company entered into an employment contract with
HighwayMaster Corporation effective November 1994 and continuing through the
fifth anniversary of the consummation of the Offering, unless terminated earlier
in the event of death, permanent disability, for "cause" or, under certain
conditions, voluntarily. Pursuant to the employment contract, the officer
receives an annual base salary ($302,500 at December 31, 1996), with annual
increases, annual bonuses and discretionary bonuses set on similar terms as
above. During 1996, 1995 and 1994 no such bonuses were earned. In the event of a
termination of employment by the Company with notice or by the officer due to
the Company's breach, the officer will be entitled to the remaining amount of
salary and the minimum bonus that would be payable under the employment contract
absent the termination. In the event of a termination by the officer with notice
(other than as set forth in the preceding sentence), the officer will be
entitled to the salary payable for the remaining term of the contract or
90 days, whichever is less. Other than in the case of a termination by the
officer due to a breach by the Company, or a termination by the Company with
notice, the contract provides that the officer is subject to a covenant not to
compete for a period of 12 months after the termination of his employment. 

LEASES

    The Company leases certain office facilities and furniture and equipment
under noncancelable operating leases. The future minimum lease payments
associated with such leases were as follows as of December 31, 1996: 


    1997                                       $1,056,000
    1998                                          699,000
    1999                                          141,000
    2000                                           50,000
    2001                                            8,000
                                               ----------
                                               $1,954,000
                                               ----------
                                               ----------
              
    
    During 1996, 1995, and 1994, total rent expense charged to operating
expenses was approximately $1,388,000, $941,000, and $613,000, respectively. 

                                       F-20

<PAGE>

PICKETT RACING CONTRACT

    The Company is obligated under a promotional Sports Car Club of America 
("SCCA") racing team sponsorship agreement with Pickett Racing to pay ten 
consecutive monthly payments of $65,000 each, which commenced in January 
1997. 

TRUCKSTOPS OF AMERICA, INC. CONTRACT

    In June 1994, the Company entered into a three-year operating agreement 
with Truckstops of America, Inc. to sell, install, and service Mobile 
Communication Units through a national network of truckstop sites. Truckstops 
of America, Inc. is required to purchase minimum levels of inventory and 
parts for each sales location, and the Company is obligated to repurchase 
inventory in the event it becomes unsalable. At December 31, 1996, the amount 
of inventory subject to return was approximately $150,000.

CAPITAL EXPENDITURES

    The Company is committed to build another Network Switching Center 
(the "additional Complex") in connection with its contract with Prince for the 
AutoLink product offering.  Construction of the additional Complex is 
scheduled for the fourth quarter of 1997 at a cost estimated to range from 
$2.0 to $3.0 million.

13.  RELATED PARTY TRANSACTIONS

    In connection with the Recapitalization, the Company assumed the rights 
and obligations of the Partnership under a certain Agency Agreement, dated as 
of February 1, 1993, by and between the Partnership and Saunders, Lubinski  & 
White, Inc. (the "Agency").  During 1996, 1995, and 1994, the Company paid 
$435,000, $1,405,000, and $1,231,000, respectively, under the Agency 
Agreement, which includes the pass-through of actual third-party expenses 
incurred by the Agency on the Company's behalf. The Agency Agreement provides 
that in consideration for its advertising services, the Agency will receive a 
5% profit based on the Agency's internal costs on all services provided to 
the Company, subject to future negotiation, in addition to actual third-party 
media, production and other reasonable expenses. The Agency Agreement may be 
terminated, with or without cause, at any time by either party, with 90 days' 
notice. An officer of the Company was a principal stockholder and officer of 
the Agency until January 1, 1997. 

    The Company leases office space from a stockholder for $57,000 per month
plus maintenance and repairs, at an average rate of $14.60 per square foot per
year. Total rent paid under this agreement during 1996, 1995 and 1994 was
approximately $699,000, $311,000, and $194,000, respectively. 

    Two stockholders of the Company and certain of their affiliates own a
minority interest in Truckstops of America, Inc. (see Note 12). During 1996,
1995 and 1994, the Company recorded revenues of approximately zero, $428,000 and
$687,000, respectively, from sales to Truckstops of America, Inc.



                                      F-21

<PAGE>

14.  QUARTERLY RESULTS OF OPERATIONS  (UNAUDITED)
    
    Unaudited consolidated quarterly results of operations for 1996 and 1995 
are as follows (in thousands, except per share amounts):

<TABLE>
                                  First         Second         Third            Fourth
1996                             Quarter        Quarter        Quarter          Quarter
- ----                             -------        -------        -------          -------
<S>                             <C>           <C>              <C>             <C>
Total revenues                  $ 6,291        $ 7,581         $7,524          $9,305
Gross profit (loss) (1)           1,003          1,052          1,375          (1,260)
Operating loss                   (6,136)        (6,484)        (6,718)         (9,293)
Loss before 
    extraordinary item           (6,368)        (6,899)        (7,463)         (9,013)
Extraordinary item                  ---            ---           (317)           ---
Net loss                         (6,368)        (6,899)        (7,780)         (9,013)
Primary loss per share: (2)
    Before extraordinary item    ($0.32)        ($0.34)        ($0.37)         ($0.36)
    Extraordinary item              ---            ---          (0.01)           ---
    Net loss                     ($0.32)        ($0.34)        ($0.38)         ($0.36)
Weighted average shares
    outstanding                   22,022         22,035         22,178         24,801


1995
- ----

Total revenues                  $ 5,681        $ 6,032        $ 7,654         $ 7,487
Gross profit (loss)                (238)           226            472            (508)
Operating loss                   (5,432)        (4,826)        (5,175)         (6,782)
Loss before 
    extraordinary item           (7,243)        (6,786)        (5,268)         (7,100)
Extraordinary item                  ---         (6,980)           ---            ---
Net loss                         (7,243)       (13,766)        (5,268)         (7,100)
Primary loss per share: (2)
    Before extraordinary item    ($0.41)        ($0.39)        ($0.26)         ($0.34)
    Extraordinary item              ---         ($0.37)           ---            ---
    Net loss                     ($0.41)        ($0.76)        ($0.26)         ($0.34)
Weighted average shares
    outstanding                   18,711         18,820         22,022         22,022

</TABLE>

(1) Fourth quarter includes $1,943,000 inventory writedown related to used
    earlier generation mobile unit component parts.

(2) Net loss per share is computed independently for each of the quarters
    presented.  Therefore, the sum of the quarterly net loss per share amounts
    will not necessarily equal the total for the year.
   
                                        F-22


<PAGE>
                                                                   SCHEDULE II 

                       HIGHWAYMASTER COMMUNICATIONS INC.
                       VALUATION AND QUALIFYING ACCOUNTS

<TABLE>
                                                       ADDITONS  
                                       BALANCE AT     CHARGED TO 
                                      BEGINNING OF     COSTS AND                                BALANCE AT   
DESCRIPTION                              PERIOD        EXPENSES     DEDUCTIONS      OTHER      END OF PERIOD 
- -----------                           ------------    ----------    ----------     -------     ------------- 
<S>                                   <C>             <C>           <C>            <C>         <C>          
Year ended December 31, 1994 
  Allowance for doubtful accounts    $         0         217,000             0           0      $   217,000 
  Inventory reserves                           0       1,828,000    (1,658,000)          0          170,000 
  Valuation allowance against   
    deferred tax asset                         0      12,490,000             0           0       12,490,000 

Year ended December 31, 1995 
  Allowance for doubtful accounts        217,000         604,000        (6,000)          0          815,000 
  Inventory reserves                     170,000         551,000      (291,000)          0          430,000 
  Valuation allowance against
    deferred tax asset                12,490,000       9,061,000             0           0       21,551,000 


Year ended December 31, 1996 
  Allowance for doubtful accounts        815,000         160,000      (201,000)          0          774,000 
  Inventory reserves                     430,000       2,223,000      (405,000)          0        2,248,000 
  Valuation allowance against
    deferred tax asset               $21,551,000      12,816,000             0     378,000      $34,745,000 
</TABLE>






                                      S-1
<PAGE>

                              INDEX TO EXHIBITS
<TABLE>
                                                       
EXHIBIT                                                
NUMBER                                TITLE            
- -------                               -----            
<C>         <S>                                       
 3.1    --  Certificate of Incorporation of the Company, as amended.(1)

 3.2    --  Form of Amended By-Laws of the Company.(7)

 4.1    --  Specimen of certificate representing Common Stock, $.01 par 
            value, of the Company.(1)

 4.2    --  Warrant Certificate, dated September 27, 1996, issued to SBW.
            (7)

 4.3    --  Recapitalization Agreement, dated September 27, 1996, by and 
            among the Company, the Erin Mills Stockholders, the Carlyle 
            Stockholders and the other persons named therein. (7)

 4.4    --  Amended and Restated Stockholders' Agreement, dated September
            27, 1996, by and among the Company, SBW, the Erin Mills 
            Stockholders, the Carlyle Stockholders, the By-Word Stockholders 
            and the other persons named therein. (7)

10.1    --  License Agreement, dated April 23, 1992, by and between Voice 
            Control Systems and the Company (as successor to By-Word 
            Technologies, Inc.)(1)

10.2    --  Agency Agreement, dated February 1, 1993, between the Company 
            and Saunders, Lubinski & White, Inc.(1)

10.3    --  Employment Agreement, dated February 4, 1994, by and between
            HighwayMaster Corporation and William C. Kennedy, Jr., as 
            amended.(1)(5)

10.4    --  Employment Agreement, dated February 4, 1994, by and between
            HighwayMaster Corporation and William C. Saunders, as 
            amended.(1)(5)

10.5    --  Employment Agreement, dated November 23, 1994, by and between
            HighwayMaster Corporation and Gordon D. Quick.(1)(5)

10.6    --  Amended and Restated 1994 Stock Option Plan of the Company, 
            dated February 4, 1994, as amended.(1)(5)(6) 

10.7    --  Purchase Agreement, dated September 27, 1996, between the 
            Company and SBW. (7)

10.8    --  Mobile Communications (Voice and Data) Services Agreement, 
            dated as of July 15, 1993, between the Company and EDS 
            Personal Communications Corporation, as amended.(1)(2)

10.9    --  Services Agreement, dated March 14, 1995, between the Company
            and GTE Telecommunications Services Incorporated.(1)(2)

10.10   --  Agreement, dated March 20, 1996, between the Company and
            GTE-Mobile Communications Service Corporation.(3)(4)

10.11   --  Agreement, dated June 8, 1994, between the Company and 
            Truckstops of America, Inc.(1)

10.12   --  Amendment dated November 16, 1995 to that certain Mobile
            Communications (Voice and Data) Services Agreement, dated
            as of July 15, 1993, between the Company and EDS Personal
            Communications Corporation.(3)(4)

10.13   --  Letter Agreement, dated April 5, 1995, between the Company 
            and IEX Corporation.(1)

10.14   --  Product Development Agreement, dated December 21, 1995, 
            between the Company and IEX  Corporation.(3)(4)

10.15   --  Technical Services Agreement, dated September 27, 1996, 
            between the HM Corporation and SBW.(7)

                                       
<PAGE>

10.16   --  Letter Agreement, dated February 19, 1996, between the 
            Company and IEX Corporation.(3)

10.17   --  Form of Adoption Agreement, Regional Prototype Cash or 
            Deferred Profit-Sharing Plan and Trust Sponsored by McKay
            Hochman Co., Inc., relating to the HighwayMaster 
            Corporation 401(k) Plan.(1)

10.18   --  Agreement dated December 3, 1996, between the Company and 
            Pickett Racing.(9)

11      --  Statement re Computation of Per Share Earnings.(9)

21      --  Subsidiaries of the Registrant.(1)

23.1    --  Consent of Price Waterhouse LLP.(9)

27      --  Financial Data Schedule(9)
</TABLE>
- ----------------------
(1)  Filed in connection with the Company's Registration Statement on Form S-1,
     as amended (No. 33-91486) effective June 22, 1995.

(2)  Certain confidential portions deleted pursuant to Order Granting 
     Application for Confidential Treatment issued in connection with 
     Registration Statement on Form S-1 (No. 33-91486) effective June 22,
     1995.

(3)  Filed in connection with the Company's Annual Report on Form 10-K for 
     the fiscal year ended December 31, 1995.

(4)  Certain confidential portions deleted pursuant to Application for
     Confidential Treatment filed in connection with the Company's Annual 
     Report on Form 10-K for the fiscal year ended December 31, 1995.

(5)  Indicates management or compensatory plan or arrangement required to be 
     identified pursuant to Item 14(a)(4).

(6)  Filed in connection with the Company's Form 10-Q Quarterly Report for 
     the quarterly period ended June 30, 1996.     

(7)  Filed in connection with the Company's Current Report on Form 8-K filed
     on October 7, 1996.

(8)  Filed in connection with the Company's Form 10-Q Quarterly Report for the
     quarterly period ended September 30, 1996.

(9)  Filed herewith.
                                       

<PAGE>

                                                                EXHIBIT 10.18

                               AGREEMENT

    THIS AGREEMENT is made this 3rd day of December, by and between PICKETT
RACING of Concord, California, with it's race shop located in Livonia, Michigan
and HighwayMaster corporation, a Delaware corporation ("HighwayMaster") with
its principal office in Dallas, Texas.

                               WITNESSETH:

    WHEREAS, Owner is the manager of an auto racing team;

    WHEREAS, HighwayMaster desires to be the principal sponsor of such racing
team;

    WHEREAS, Owner desires HighwayMaster to be the principal sponsor of such
racing team;

    NOW, THEREFORE, in consideration of the premises and the mutual covenants
and conditions hereinafter set forth, and intending to be legally bound, the
parties agree as follows:

1.  DEFINITIONS

    As used herein, the following words shall have the following meanings:

    (a)  The "Cars" shall mean the racing vehicles which are raced by the
         Drivers in the Races.

    (b)  The "Drivers" shall mean Bill Saunders and Greg Pickett.

    (c)  "SCCA" Shall mean the Sports Car Club of America.

    (d)  The "Races" shall mean all SCCA Trans-Am races during 1997.

    (e)  The "Substitute Drivers" shall mean the driver which substitutes for
         the Drivers if he is unable to drive the Cars.

    (f)  The "Team" shall mean the Pickett Racing Team.

    (g)  The "Transporters" shall mean the race car transporters required to
         transport the Cars.

2.  TERM

    The term of this Agreement shall be deemed to have commenced on December 3,
1996, and, unless sooner terminated in accordance with the provisions hereof,
shall end on Nov. 30, 1997 (the "Contract Period").

3.  SPONSORSHIP BY HIGHWAYMASTER

    (a)  HIGHWAYMASTER and the AutoLink-Registered Trademark- venturers
         shall be the principal sponsor of the Team during the Contract Period.
         HighwayMaster and its permitted assignee(s) shall be identified, for
         promotional purposes, as the primary sponsor of each of the two (2)
         cars covered in this Agreement.

    (b)  Pickett Racing shall provide uniforms for all Team Members, which
         uniforms shall be worn by all such persons during every Race and all
         practice and qualifying activities related thereto.  All of the
         uniforms shall conspicuously and appropriately identify each wearer as
         being under the sponsorship of HighwayMaster, as appropriate.
         HighwayMaster shall reimburse Pickett Racing

                                     1
<PAGE>

         for the actual reasonable out-of-pocket cost of all sponsor
         identification patches or embroidery for these uniforms.

    (c)  Owner shall decorate the Cars, the Transporters and all supporting
         equipment with HighwayMaster's identification in accordance with
         HighwayMaster's  instructions.  The decorations shall be maintained by
         owner so as to appear freshly painted (painted surfaces) and applied
         (decals for each Race).  HighwayMaster shall reimburse Pickett Racing
         for all actual, reasonable costs of the decals, based on estimates
         pre-approved by HighwayMaster.

4.  THE CARS

    (a)  Owner shall pay all expenses related to the Cars including entry
         fees, race prep, tires, and all other maintenance.  Owner hereby
         represents, warrants and covenants to HighwayMaster that the Cars meet
         all applicable laws, rules and regulations of governmental entities,
         the SCCA, or any governing body.

    (b)  Owner shall provide a sufficient number of qualified mechanics
         and all other personnel required to maintain and operate the Cars in
         good and attractive order, repair and condition at all times.  If a
         car is damaged or wrecked, Owner will repair it to original condition
         or will replace it with a vehicle of equal capabilities before the
         practice session preceding the next scheduled race.  Owner
         acknowledges that image and showmanship are an important part of the
         services it is providing to HighwayMaster.  The equipment and crew
         supplied by Owner shall be of high quality, and the crew shall
         maintain a professional appearance and demeanor at all times.  The
         racing compound shall be kept in order and clean.  The interior and
         exterior of the race car Transporter(s), the cars, tools, work area,
         crew and surrounding area will be maintained in a neat, organized and
         clean manner.

         State of the art computer diagnostic equipment will be supplied for
         all HighwayMaster Cars, and an operator with sufficient skill to
         operate the equipment and analyze data will be employed by the Owner
         and will be present at all test days and race events, as specified in
         this Agreement.

         An operational cool suit and fresh air system is to be provided for
         the race car driven by Bill Saunders.

    (c)  Owner shall provide a Transporter(s) and any additional
         incidental equipment required to properly support and transport the
         Cars at all times during the Contract Period.  Owner shall maintain
         and operate the Transporter(s) and such equipment in good and
         attractive order, repair and condition at all times.

5.  THE RACES

    (a)  Owner shall use its best efforts to cause Drivers to qualify for and
         race in all of the Races.  Failure to comply with the foregoing shall
         be deemed a material default.

    (b)  All prize money won by Bill Saunders, including any contingency funds,
         will be paid directly to Pickett Racing.

                                     2
<PAGE>

    (c)  Owner's working crew (based on 26 head count) will be provided with
         lunch by HighwayMaster in exchange for the set-up and tear-down of the
         HighwayMaster hospitality center at each Trans-Am racing event where
         the hospitality center is provided.  Owner's working crew will not be
         required to arrive to perform set-up earlier at the events than
         otherwise scheduled, so long as set-up is complete no later than the
         end of the day, one day preceding an event weekend.  Set-up and tear-
         down shall be defined as the following:

         SET-UP:       Raising HMHC awning
                       Laying flooring
                       Setting up tables and chairs

         TEAR-DOWN:    Packing tables and chairs
                       Storing Floor Materials
                       Break down and store awning

         When the Pickett Racing team races on the Saturday of an event
         weekend, the crew will set up the HighwayMaster hospitality center and
         receive lunch on that Saturday.  When the Pickett Racing team races on
         Sunday of an event weekend, the crew will set up and tear down the
         HighwayMaster hospitality center and receive lunch both Saturday and
         Sunday (seven events).  Crew lunches will be served at a mutually
         agreed time and place to be defined by race.

         The HighwayMaster hospitality center will be available to Owner's
         drivers and their guests, not to exceed five guests per race per
         driver.  HighwayMaster shall have the right to approve additional
         guests at its discretion at no cost, or if the circumstances
         necessitate a fee for additional guest, at $10 per guest.

    (d)  Owner shall make the Cars available for at least nine (9) testing days
         as set forth on the list of testing days attached to this agreement.

6.  DRIVERS:  SUBSTITUTE DRIVERS

    (a)  Except as otherwise provided in Subparagraph 6(b) below, the Drivers
         shall drive the Cars in all of the Races.

    (b)  If one of the Drivers is unable to drive one of the Cars due to injury
         or illness, then Owner shall provide, at its expense, a Substitute
         Driver who shall be approved in advance in writing by HighwayMaster.
         The Substitute Drivers shall drive the Car only for such period of
         time as a Driver is unable to drive.

    (c)  If a Substitute Driver is unable to drive a Car for any reason, then
         Owner shall provide another Substitute Driver in accordance with the
         provisions of Subparagraph 6(b) above.

7   ADVERTISING AND PROMOTION

    (a)  HighwayMaster shall have the right to engage in any advertising
         or promotional activities which it may determine with respect to its
         sponsorship of the Team. HighwayMaster shall have the right to use
         the Cars for promotional activities,

                                     3
<PAGE>

         pictures, inclusion in television commercials and the right to use
         the name and likeness of any Driver or Substitute Driver and the right
         to the personal appearances of such persons to advertise and promote:

         (i)     HighwayMaster's sponsorship of the Team:

         (ii)    the performance of the Team during the Contract Period; and/or

         (iii)   the support HighwayMaster has given to the Races and/or auto
                 racing in general; provided, however, that such use of the
                 Cars and the personal appearances and activities are scheduled
                 at such times and places as are reasonably convenient for the
                 Drivers and any Substitute Drivers and do not interfere with
                 their respective racing duties as provided in this Agreement.

    (b)  Owner shall not allow the Cars to appear in any commercial
         advertisement without the prior written approval of HighwayMaster.

    (c)  The Drivers agree to make themselves available for personal
         appearances at the Races on HighwayMaster's behalf for autograph
         sessions, photos with HighwayMaster guests and visiting with
         HighwayMaster guests.

    (d)  Owner agrees to cause Greg Pickett to appear at the ATA convention,
         and at two other trade shows at the discretion of HighwayMaster.
         Driver will be paid $500 per day for driver appearances beyond the
         three specified above.  At all appearances, HighwayMaster will pay
         actual, reasonable, out-of-pocket expenses for driver travel from his
         or her home to the event, meals, lodging, and show car transportation.

    (e)  Owner gives HighwayMaster permission to obtain additional team
         sponsors for HighwayMaster Cars(s) and to place logos pursuant to
         HighwayMaster's direction.  Owner shall receive 100% of the first
         $200,000 of the sponsorship funds paid by such additional team
         sponsors under separate agreements to be executed between Owner and
         such additional sponsors.  100% of the funds paid by such additional
         team sponsors that are in excess of $200,000 but less than $400,000
         shall be paid to HighwayMaster.  Funds paid by such additional team
         sponsors that are in excess of $400,000 shall be paid 50% to Owner and
         50% to HighwayMaster.  Funds raised separately by HighwayMaster for
         its hospitality center sponsorship shall be solely paid to and managed
         by HighwayMaster.

         The only exception to 7(e) above is that Champion Nutrition and
         any/all of it's brands are specifically excluded from this paragraph.*

    (f)  Owner agrees to cause its drivers to appear for charity functions,
         media functions scheduled not more than one day prior to official
         opening of practice/qualifying for a Trans-Am event, and SCCA Kickoff
         Press Conference, if requested by HighwayMaster, at no charge to any
         sponsor.

* Also excludes current sponsors and business associates of HighwayMaster.
These include, without limitation, AutoLink and its venturers, Detroit Deisel,
Featherlite, Kenworth, Freightliner

                                     4
<PAGE>

    (g)  Owner agrees to provide a marketing representative who will perform,
         at the request of HighwayMaster, the functions listed on the
         "Administrative Responsibilities" list attached to this contract.

8.  SPONSORSHIP FEE

    HighwayMaster agrees to pay to Owner and Owner agrees to accept from
HighwayMaster, in consideration of all services rendered by Owner and all 
rights granted by Owner to HighwayMaster hereunder, the sum of Seven Hundred 
Fifty Thousand dollars ($750,000) in accordance with the following schedule:

    $100,000 payable at execution of contract
    $ 65,000 per month for 10 months beginning Jan. 1, 1997

    The sponsorship fee is based on the assumption that the Cars will race in a
total of 13 or more races.  In the event the Cars participate in fewer than 13
races, the sponsorship fee payable to Owner by HighwayMaster will be reduced by
$30,000 per race.

9.  Omitted.

10. TRADEMARKS

    The words HighwayMaster, the HighwayMaster logo and HighwayMaster design,
the HighwayMaster product identification, decals and artwork referred to herein
(collectively "HighwayMaster Trademarks") shall remain the property of
HighwayMaster.  Any and all rights under trademark or copyright law or other
property rights thereof shall inure to the benefit of HighwayMaster.
HighwayMaster grants to owner the right to use the above in accordance with the
provision hereof, provided that such right is nonexclusive, nonassignable and
nontransferable and shall be only for the Contract Period.  All proposed uses of
HighwayMaster Trademarks shall be subject to Highwaymaster's review and prior
written approval.  The AutoLink trademark and the trademark of other
HighwayMaster sponsors are the property of their respective owners and all
proposed uses shall be subject to the review and prior written approval of their
respective owners.

11. TERMINATION

    (a)  Either party shall have the right at any time to terminate this
         Agreement, without prejudice to any other legal rights to which such
         terminating party may be entitled, upon the occurrence of any one or
         more of the following:

         (i)     a material default by the other party in performance of any of
                 the provisions of this Agreement, which default is not cured
                 within fifteen (15) days following written notice of such
                 default to the defaulting party;

         (ii)    the making by the other party of an assignment for the benefit
                 of creditors;

         (iii)   the appointment of a trustee, receiver or similar officer of
                 any court for the other party or for a substantial part of the
                 property of the other party, whether with or without the
                 consent of the other party; or

         (iv)    the institution of bankruptcy, composition, reorganization,
                 insolvency of liquidation proceedings by or against the other
                 party without such 

                                     5 
<PAGE>

                 proceedings being dismissed within thirty (30) days from the 
                 date of the institution thereof.


    (b)  HighwayMaster shall have the right to terminate this Agreement if
         any of the representations or warranties made by owner in this
         Agreement shall prove to be untrue in any material respect.

    (c)  Owner agrees to pay all bona fide expenses, fees and charges it incurs
         with third parties in connection with the racing effort set forth in
         the Agreement, within 60 days of the date of invoice by such third
         parties.  If Owner fails in a material way to maintain such prompt
         payment of third parties, HighwayMaster shall have the right to
         terminate this Agreement and receive any applicable refund as
         specified in subsection 11(e) below.

    (d)  If a Driver or any Substitute Driver has committed, or shall commit,
         any act, or has been, or becomes involved in any situation or
         occurrence tending to bring him into public disrepute, contempt,
         scandal or ridicule, or tending to shock, insult or offend the people
         of this nation or any class or group thereof, or reflecting
         unfavorably upon HighwayMaster's reputation or its products, then
         HighwayMaster shall have the right to immediately terminate this
         Agreement.

    (e)  Upon HighwayMaster's termination of this Agreement pursuant to the
         provisions hereof, the unearned portion of the sponsorship fee paid to
         Owner by HighwayMaster pursuant to paragraph 8 hereof shall be
         promptly refunded to HighwayMaster by Owner.  The amount of such
         refund shall be calculated in the following manner;  The sponsorship
         fee shall be multiplied by a fraction, the numerator of which shall be
         the number of Races following the occurrence of the event giving rise
         to HighwayMaster's right of termination, and the denominator of which
         shall be the total number of Races.

    (f)  Upon termination of this Agreement for any reason, Owner shall remove
         all Highwaymaster Trademarks from the Cars and the uniforms of the
         Drivers, mechanics and other Team members and from all supporting
         vehicles and materials of whatever nature.

12. PROPERTY OF HIGHWAYMASTER

    All pictures, prints, motion pictures, audio or visual tapes, artists'
renderings, plans, ideas, concepts and other things which are made or prepared
by Highwaymaster or its agents in connection with its sponsorship of the Team
shall be and remain the exclusive property of HighwayMaster.  HighwayMaster
shall have the right to obtain, register and otherwise perfect sole and
exclusive ownership of any of the aforementioned items in itself by means of
copyright, trademark, service mark or other proprietary interest, anywhere and
at any time, and shall have the right to use any such items in perpetuity in any
manner, when and where it may designate, without any claim on the part of Owner
or any third party to any right of ownership or right to additional
compensation.

13. RELEASE

    Owner shall, on or before February 1, 1997, furnish HighwayMaster with
releases signed by Owner and the Drivers connected with its performance of this
Agreement.  Such releases shall be in the form set forth in Exhibit 1 attached
hereto.  Owner's compliance with the foregoing

                                     6
<PAGE>

obligation shall be a condition precedent to the enforcement of HighwayMaster's
obligations hereunder.

14. INSURANCE

    Owner shall provide HighwayMaster, upon execution of this Agreement, with a
certificate from Owner's qualified and licensed insurer certifying that Owner
has a comprehensive liability insurance policy in force throughout the Contract
Period covering all of its activities directly or indirectly relating to his
performance of this Agreement and providing:

    (i)   bodily injury and death insurance in amounts of not less than
          $2,000,000 for all injuries and deaths arising from each accident or
          occurrence;

    (ii)  Omitted.

    (iii) property damage insurance in amounts of not less than
          $1,000,000 for all property damage arising from each accident or
          occurrence

    (iv)  at owner's option, a major accident coverage for the race car
          driven by Bill Saunders in an amount not less than $75,000.

    (v)   routine replacement of parts is not crash damage.

    The insurance certificate shall name HighwayMaster as an additional insured
under the aforesaid insurance policy.  The certificate shall specifically state
that coverage as it pertains to HighwayMaster shall be primary regardless of any
other coverage which may be available to HighwayMaster and that there will be no
cancellation or amendment of the underlying policies without ten (10) days prior
written notice to HighwayMaster.  Owner's insurance policy shall contain a
contractual liability endorsement covering its obligations under Paragraph 15
hereof.  Failure to provide such certificate in the manner and time required by
this Paragraph 14 or to maintain the insurance specified herein shall be deemed
a material breach of this Agreement.

    In any event, whether Owner insures the Race Cars or not, Owner shall be
responsible and shall perform repairs of all damage to the Cars regardless of
fault, at the sole cost of Owner, without increase of the fees set forth in
Section 8 hereof.  Repairs shall be completed prior to the next scheduled race.

15. INDEMNIFICATION

    Owner shall indemnify, protect, defend and hold harmless, HighwayMaster,
its parent companies, subsidiaries and affiliated corporations, and their
respective directors, officers, employees and agents from and against any and
all damages, loss, claims, actions, demands or liabilities whatsoever, and from
all expenses and costs incidental thereto (including but not limited to
attorney's fees, court costs and other legal expenses) based upon (i) damage to
any property whatsoever or any personal injury to or death of any person
whomsoever in connection, directly or indirectly, with Owner's performance of
its purposes of this Agreement, or (ii) any alleged or actual breach by Owner of
any provision hereof or the inaccuracy of any warranty or representation made by
Owner herein.  HighwayMaster will not be held responsible for any crash damage
to the Cars, other properties, or persons.

16. INDEPENDENT CONTRACTOR

    The parties shall be and act as independent contractors, and under no
circumstances shall this Agreement be construed as one of agency, partnership,
joint venture or employment between

                                     7
<PAGE>

the parties.  Each party acknowledges and agrees that it neither has nor will
give the appearance of impression of having any legal authority to bind or
commit the other party in any way.

17. EXPENSES

    Except as otherwise expressly provided in this Agreement, Owner shall be
responsible for and shall promptly pay any and all expenses relating to its
performance of this Agreement.  Provided, that HighwayMaster shall be entitled
to assign this Agreement, in part or in whole, to members of the
AutoLink-Registered Trademark- venture.

18. SUCCESSORS AND ASSIGNS; THIRD PARTY BENEFICIARY

    Neither party shall assign its rights and/or obligations under this
Agreement without the prior written approval of the other party.  This Agreement
and all of the terms and provisions hereof will be binding upon, and will inure
to the benefit of, the parties hereto, and their respective successors and
approved assigns.

19. NOTICE

    All notices required or permitted hereunder shall be in writing and shall
be deemed duly given upon receipt if either personally delivered or sent by
certified mail, return receipt requested. addressed to the parties as follows:

    if to HighwayMaster, to:  HighwayMaster Corporation
                              Attn:  Bill Saunders
                              16479 Dallas Parkway, Ste. 710
                              Dallas, TX 75248

    if to Owner, to:          Pickett Racing
                              Attn:  Greg Pickett
                              2615 Stanwell Drive
                              Concord, CA 94520

or to such other addresses either party may provide to the other in accordance
herewith.

20. WARRANTY

    (a)  Owner represents, warrants and covenants to HighwayMaster as follows:

         (i)   It has the full right and legal authority to enter into and
               fully perform this Agreement in accordance with its terms.

         (ii)  This Agreement when executed and delivered by owner, will be its
               legal, valid and binding obligation enforceable against Owner in
               accordance with its terms, except to the extent that enforcement
               thereof may be limited by bankruptcy, insolvency or other similar
               laws affecting creditor's rights generally.

         (iii) The execution and delivery of this Agreement has been duly
               authorized by Owner, and such execution and delivery and the
               performance by Owner of its obligations hereunder, do not
               and will not violate or cause a breach of any other
               agreements or obligations to which it is a party or by which
               it is

                                     8
<PAGE>

               bound, and no approval or other action by any governmental
               authority or agency is required in connection herewith.

         (iv)  This Agreement is entered into solely for the purchase of
               advertising as described herein and for no other purposes.

         (v)   Omitted.

         (vi)  Omitted.

         (vii) Omitted.

21. Omitted.

22. Omitted.

23. RIGHTS AND REMEDIES CUMULATIVE

    The right and remedies provided by this Agreement are given in addition to
any other rights and remedies either party may have by law, statute, ordinance
or otherwise.  All such rights-and remedies are intended to be cumulative, and
the use of any one right or remedy by either party shall not preclude or waive
its right to use any or all other rights or remedies.

24  MISCELLANEOUS

    Each of the individuals executing this Agreement certifies that he or she
is duly authorized to do so.  This Agreement constitutes the entire
understanding between the parties with respect to the subject matter hereof and
supersedes all prior or contemporaneous agreements in regard thereto.  This
Agreement cannot be altered or modified except by an agreement in writing signed
by authorized representatives of both parties and specifically referring to this
Agreement.  This Agreement is entered into in the state of Texas and will be
governed by and construed under the laws of such state, without regard to its
principles of conflicts of laws.

    IN WITNESS WHEREOF, this Agreement is executed as of the day and year first
above written.

PICKETT RACING                         HIGHWAYMASTER, CORPORATION



By /S/ GREG PICKETT                       /S/ WILLIAM C. SAUNDERS
  -----------------------------        ---------------------------------
Its:  OWNER                               PRESIDENT AND CEO
    ---------------------------        ---------------------------------


                                     9
<PAGE>

                       ADMINISTRATIVE RESPONSIBILITIES

    A marketing representative is responsible for the following functions, as
appropriate:

    -    Write, produce, and collate an SCCA Trans-Am Tour press kit,
         including:

    -    -Race-specific driver/team "Fast Facts"
         -Race-specific press release
         -Generic standard team/sponsor press release
         -Driver/team "Fast Facts" biography
         -Updated points standings
         -Driver head shots and car photos
         -Technical information on race car

    -    Maintain and update media lists:

         -National and event market motorsport media
         -Network and cable producers and talent

    -    Coordinate and maintain all photographic and video materials:

         -Driver and car photography and slides
         -B-roll videotape materials

    -    Compile and maintain statistics on drivers, team, and marque

    -    Maintain regular contact/liaison with:

         -Team sponsors
         -Chevrolet/MTG representatives
         -Sanctioning body
         -Marketing/PR/advertising agencies
         -Tracks and/or race promoters

    -    Daily handling of media inquiries and information requests

    -    Provide information/photos to SPONSOR'S for internal use


                                     10
<PAGE>

                          PRE-EVENT RESPONSIBILITIES

    -    Write and produce event-specific press release

    -    Contact key race market media to pitch story concepts

    -    Write and update race program story for each race event

    -    Send press information to key media in event markets prior to race

    -    Provide information, stats, and quotes to SCCA for pre-event press
         mailings


                       ON-SITE/TRACKSIDE RESPONSIBILITIES

    -    Coordinate driver involvement in race week "Press Day" opportunities

    -    Coordinate driver/team involvement in pre-race promotional activities

    -    Distribute news releases and press kits in the media center

    -    Distribute SPONSOR'S premium items (notebooks, pens, earplugs,
         credential holders) to members of the media

    -    Coordinate all on-site/trackside interview opportunities

    -    Coordinate team involvement in SCCA trackside autograph sessions

    -    Coordinate any in-car camera arrangements and decal placements

    -    Supply driver/team/SPONSOR background information and statistics to
         SCCA staff, track announcers, and television broadcast talent

    -    Obtain, prepare, and distribute driver "Notes and Quotes" to media,
         sanctioning body communications officials, and track press officer
         after practice and qualifying sessions

    -    Obtain, prepare, and distribute post-race driver "Notes and Quotes" to
         same

    -    Prepare and distribute "special interest" angles/updates for use in
         print media "sidebar" section

    -    Coordinate all Winner's Circle activities and post race interviews

    -    Conduct paddock/pit tours for SPONSOR'S VIP's and/or guests


                                     11
<PAGE>

                         POST-EVENT RESPONSIBILITIES

    -    Collect copies of articles, stories, and clips mentioning SPONSOR,
         drivers, and/or team (to be discussed)

    -    Arrange for copies of special feature electronic media coverage

    -    Fax results back to local media

    -    Write and distribute the Pickett Racing newsletter



                                     12


<PAGE>

                                                                   Exhibit 11
                                                                  Page 1 of 2



             HIGHWAYMASTER COMMUNICATIONS, INC. AND SUBSIDIARY
            STATEMENT REGARDING COMPUTATION OF PER SHARE EARNINGS
<TABLE>
<CAPTION>
                                                                                     Year ended       Year ended
                                                                                     December 31,     December 31,
                                                                                        1996              1995
                                                                                    ------------     ------------
<S>                                                                                 <C>              <C>
NET LOSS APPLICABLE TO COMMON STOCKHOLDERS
     Loss before accretion and extraordinary item                                   ($29,743,000)     ($26,397,000)
     Accretion of Series B preferred stock                                            (1,831,000)       (1,977,000)
                                                                                    ------------      ------------
     Loss before extraordinary item                                                  (31,574,000)      (28,374,000)
     Extraordinary item                                                                 (317,000)       (6,980,000)
                                                                                    ------------      ------------
     Net loss applicable to common stockholders                                     ($31,891,000)     ($35,354,000)
                                                                                    ------------      ------------
                                                                                    ------------      ------------
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING
     Weighted average number of shares outstanding, net of treasury shares            22,762,864        19,812,839
     Additional weighted average shares for assumed exercise of stock options,
        net of shares assumed to be repurchased with exercise proceeds                       ---           594,476
                                                                                    ------------      ------------
     Weighted average number of shares outstanding                                    22,762,864        20,407,315
                                                                                    ------------      ------------
                                                                                    ------------      ------------
NET LOSS PER COMMON SHARE APPLICABLE TO COMMON STOCKHOLDERS
     Loss before accretion and extraordinary item                                         ($1.31)           ($1.29)
     Accretion of Series B preferred stock                                                 (0.08)            (0.10)
                                                                                    ------------      ------------
     Loss before extraordinary item                                                        (1.39)            (1.39)
     Extraordinary item                                                                    (0.01)            (0.34)
                                                                                    ------------      ------------
     Net loss per common share applicable to common stockholders                          ($1.40)           ($1.73)
                                                                                    ------------      ------------
                                                                                    ------------      ------------
SUPPLEMENTAL NET LOSS
     Loss before accretion and extraordinary item                                   ($29,743,000)
     Accretion of Series B preferred stock                                            (1,831,000)
     Adjustment to eliminate accretion on Series B preferred stock retired             1,831,000
     Adjustment to eliminate interest expense on notes payable retired                 1,659,000
                                                                                    ------------
     Supplemental net loss applicable to common stockholders before
       extraordinary item                                                            (28,084,000)
     Extraordinary item                                                                 (317,000)
                                                                                    ------------
     Supplemental net loss                                                          ($28,401,000)
                                                                                    ------------
                                                                                    ------------
SUPPLEMENTAL WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING
     Weighted average number of common shares outstanding                             22,762,864
     Adjustment to weighted average shares for weighted average shares to retire
       Series B Preferred Stock and notes payable                                      1,384,648
                                                                                    ------------
     Supplemental weighted average number of shares outstanding                       24,147,512
                                                                                    ------------
                                                                                    ------------


SUPPLEMENTAL NET LOSS PER COMMON SHARE
     Loss before accretion and extraordinary item                                         ($1.23)
     Accretion of Series B preferred stock                                                 (0.08)
     Adjustment to eliminate accretion on Series B preferres stock period                   0.08
     Adjustment to eliminate interest expense on notes payable retired                      0.06
                                                                                    ------------

     Supplemental loss before extraordinary item                                           (1.17)
     Extraordinary item                                                                    (0.01)
                                                                                    ------------
     Supplemental net loss per common share                                               ($1.18)
                                                                                    ------------
</TABLE>
<PAGE>

                                                                     Exhibit 11
                                                                     Page 2 of 2



         HIGHWAYMASTER COMMUNICATIONS, INC. AND SUBSIDIARY
         STATEMENT REGARDING COMPUTATION OF PER SHARE EARNINGS
<TABLE>
<CAPTION>
                                                                                 Year ended
                                                                                 December 31,
                                                                                     1994
                                                                                 -------------
<S>                                                                              <C>
PRO FORMA NET LOSS
     Net loss                                                                      ($25,881,000)
     Accretion of Series B preferred stock                                           (1,235,000)
                                                                                   ------------
     Net loss applicable to common stockholders                                     (27,116,000)
     Pro forma adjustment to recognize interest expense on debt from the 
        "effective" debt commencement date                                             (134,000)
     Pro forma adjustment to recognize accretion of Series B preferred stock
        from the "effective" debt commencement date                                    (112,000)
                                                                                   ------------
     Pro forma net loss                                                            ($27,362,000)
                                                                                   ------------
                                                                                   ------------
PRO FORMA WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING
     Weighted average number of shares outstanding, net of treasury shares           17,040,294
     Additional weighted average shares for assumed exercise of stock options,
        net of shares assumed to be repurchased with exercise proceeds                1,219,009
                                                                                   ------------
     Pro forma weighted average number of shares outstanding                         18,259,303
                                                                                   ------------
                                                                                   ------------
PRO FORMA NET LOSS PER COMON SHARE
     Net loss                                                                            ($1.42)
     Accretion of Series B preferred stock                                                (0.07)
     Net loss applicable to common stockholders                                           (1.49)
     Pro forma adjustment to recognize interest expense on debt from the 
        "effective" debt commencement date                                                (0.01)
     Pro forma adjustment to recognize accretion of Series B preferred stock
        from the "effective" debt commencement date                                        0.00
                                                                                   ------------
     Pro forma net loss per common share                                                 ($1.50)
                                                                                   ------------
                                                                                   ------------
</TABLE>

<PAGE>


                                                             EXHIBIT 23.1

                    CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in the Registration 
Statement on Form S-8 dated March 29, 1996 (No. 333-2914) of HighwayMaster 
Communications, Inc. of our report dated February 10, 1997 appearing on page 
F-1 of this Annual Report on Form 10-K. We also consent to the incorporation 
by reference of our report on the Financial Statement Schedule, which appears 
on page S-1 of this Form 10-K.



PRICE WATERHOUSE LLP

Dallas, Texas
March 27, 1997



<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996
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