CORSAIR COMMUNICATIONS INC
10-Q, 1999-08-16
COMPUTER INTEGRATED SYSTEMS DESIGN
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24


                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                -------------


                                    FORM 10-Q

(Mark One)
  [ X ]     QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE
            SECURITIES EXCHANGE ACT OF 1934

            For the quarterly period ended June 30, 1999.


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

            Commission File Number: 0-22859


                          CORSAIR COMMUNICATIONS, INC.
             (Exact name of registrant as specified in its charter)



              DELAWARE                                 77-0390406
   (State or other jurisdiction of                    (IRS Employer
   incorporation or organization)                Identification Number)

 3408 Hillview Avenue Palo Alto, CA                       94304
(Address of principal executive offices)               (Zip Code)


     REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE IS (650) 842-3300


      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 past 90 days. [ X ] Yes [ ] No;


      The number of shares of the  Registrant's  Common Stock  outstanding as of
July 31, 1999 was 17,908,838.


<PAGE>



                                      INDEX




                                                                        Page No.
Part I.  Financial Information

Item 1.  Condensed Consolidated Financial Statements

         Condensed Consolidated Balance Sheets as of June 30, 1999 and
          December 31, 1998.................................................3

         Condensed Consolidated Statements of Operations for the Three and
          Six Months Ended June 30, 1999 and 1998 ..........................4

         Condensed Consolidated Statements of Cash Flows for the Six Months
          Ended June 30, 1999 and 1998 .....................................5

         Notes to Condensed Consolidated Financial Statements...............6

Item 2.  Management's Discussion and Analysis of Financial
          Condition and Results of Operations ..............................9

Item 3.  Quantitative and Qualitative Disclosures about Market Risk........22


Part II. Other Information

Item 2.  Change in Securities and Use of Proceeds..........................22

Item 4.  Submission of Matters to a Vote of Security Holders...............22


Item 6.  Exhibits and Reports on Form 8-K .................................23


Signatures ................................................................23







<PAGE>



PART I - FINANCIAL INFORMATION

Item 1. Condensed Consolidated Financial Statements

                          CORSAIR COMMUNICATIONS, INC.
               Unaudited Condensed Consolidated Balance Sheets
                                 (In thousands)

                                                 June 30,       December 31,
                                                   1999             1998
                                              ---------------  --------------
Assets

Cash and cash equivalents                      $   13,465       $   4,196
Short-term investments                             28,227          34,377
Trade accounts receivable, net                     14,473          14,134
Inventories, net                                    2,646           5,676
Evaluation inventory                                2,949           2,597
Prepaids and other                                  1,757           2,266
Current portion of note receivable                    366              --
                                              ---------------  --------------
  Total current assets                             63,883          63,246
Property and equipment, net                         4,072           7,422
Note receivable, net of current portion             1,541              --
Other assets                                          728             892
                                              ===============  ==============
  Total assets                                 $   70,224       $  71,560
                                              ===============  ==============

Liabilities and Stockholders' Equity
Accounts payable                               $    1,589       $   1,706
Accrued benefits                                    2,209           2,261
Accrued expenses                                    5,912           5,470
Current portion of notes payable                      686             639
Current portion of capital lease obligations          246             609
Deferred revenue                                    7,571           7,137
                                              ---------------  --------------
  Total current liabilities                        18,213          17,822
Notes payable, net of current portion               1,052           1,407
Capital lease obligations,  net of current             16             217
   portion                                    ---------------  --------------
  Total liabilities                                19,281          19,446
                                              ---------------  --------------
Common stock                                           18              18
Notes receivable from stockholders                   (368)           (468)
Additional paid-in capital                        106,075         105,433
Treasury stock, at cost, 598 shares in 1999        (2,306)             --
Deferred compensation                                (182)           (288)
Accumulated deficit                               (52,294)        (52,581)
                                             ---------------  --------------
  Total stockholders' equity                       50,943          52,114
                                             ---------------  --------------
  Total liabilities and stockholders'equity   $    70,224      $   71,560
                                             ===============  ==============

    See accompanying notes to Condensed Consolidated Financial Statements


<PAGE>


                          CORSAIR COMMUNICATIONS, INC.
          Unaudited Condensed Consolidated Statements of Operations
                    (In thousands, except per share data)


                                      Three Months Ended     Six Months Ended
                                           June 30,              June 30,
                                       1999       1998        1999      1998
                                     ---------- ---------- ---------- ----------
  Revenues:
      Hardware revenue               $   9,018  $   9,925  $  17,537  $ 22,047
      Software revenue                   3,988      4,462      6,911     7,216
      Service revenue                    3,040      4,662      6,876     8,298
                                     ---------- ---------- ---------- ----------
        Total revenues                  16,046     19,049     31,324    37,561

  Cost of revenues:
      Hardware revenue costs             4,700      4,643      8,685    11,292
      Software revenue costs               382        356        613       708
      Service revenue costs              1,307      2,349      2,845     4,494
                                     ---------- ---------- ---------- ----------
        Total cost of revenues           6,389      7,348     12,143    16,494
                                     ---------- ---------- ---------- ----------
        Gross profit                     9,657     11,701     19,181    21,067
                                     ---------- ---------- ---------- ----------

  Operating costs and expenses:
      Research and development           2,527      4,340      6,009     8,965
      Sales and marketing                3,467      4,136      7,409     7,591
      General and administrative         1,607      2,430      3,208     4,424
      Merger related expenses               --      4,481         --     4,481
      Reorganization costs                  --         --        856       --
                                     ---------- ---------- ---------- ----------

        Total operating costs and       7,601     15,387      17,482    25,461
          expenses                   ---------- ---------- ---------- ----------

         Operating income (loss)         2,056    (3,686)      1,699    (4,394)

  Loss on sale of assets                    --         --     (2,176)      --
  Other income, net                        365        402        764     1,671
                                     ---------- ---------- ---------- ----------

    Income (loss) before income taxes    2,421    (3,284)        287    (2,723)
  Income taxes                              --        110         --       364
                                     ---------- ---------- ---------- ----------
  Loss before extraordinary item         2,421    (3,394)        287     3,087)
  Loss on debt extinquishment               --      (226)         --      (226)
                                     ---------- ---------- ---------- ----------

  Net income (loss)                  $   2,421  $ (3,620)  $     287  $ (3,313)
                                     ========== ========== ========== ==========

  Basic and diluted net loss per sharedata:
    Basic net loss before
      extraordinary item             $    0.14  $  (0.19)  $    0.02  $  (0.18)
  Extraordinary loss on debt                --     (0.01)         --     (0.01)
  extinquishment
  Basic net income (loss) per share  $    0.14  $  (0.20)  $    0.02  $  (0.19)
                                     ========== ========== ========== ==========
  Shares used in basic per share        17,832    17,660      17,933    17,632
  calculation                        ========== ========== ========== ==========

  Diluted net income (loss) per      $    0.13  $  (0.20)  $    0.02  $ 17,632
    share                            ========== ========== ========== ==========
  Shares used in diluted per share
    calculation                         18,236     17,660     18,400    17,632
                                     ========== ========== ========== ==========


    See accompanying notes to Condensed Consolidated Financial Statements
<PAGE>

                          CORSAIR COMMUNICATIONS, INC.
          Unaudited Condensed Consolidated Statements of Cash Flows
                                 (In thousands)
                                                         Six Months Ended
                                                              June 30,
                                                      ------------------------
                                                         1999         1998
                                                      ----------   -----------
Cash flows from operating activities:
   Net income (loss)                                  $     287    $   (3,313)
   Adjustments to reconcile net loss to net cash
     provided by (used in)operating activities:
      Depreciation and amortization                       2,015         1,935
      Amortization of deferred compensation and             106           298
        compensation expens
      Loss on sale of assets                              2,176            --
      Reorganization costs                                  856            --
      Extraordinary loss on debt extinquishment              --           226
      Merger related costs                                   --         4,108
      Changes in operating assets and liabilities:
        Trade accounts receivable                        (2,260)       (1,915)
        Inventories                                       2,668         2,954
        Prepaid expenses and other assets                   (70)         (630)
        Accounts payable and accrued expenses              (315)          661
        Deferred revenue                                  1,603        (6,895)
                                                      ----------   -----------
          Net cash provided by (used in) operating        7,066        (2,571)
            activities                                ----------   -----------
Cash flows from investing activities:
   Payment on sale of CRM assets                         (1,275)           --
   Purchase of short-term investments                    (2,000)      (14,413)
   Proceeds from sales and maturities of short-term       8,150        11,016
     investments
   Purchases of property and equipment                      (64)       (2,041)
                                                      ----------   -----------
      Net cash provided by (used in)investing             4,811        (5,438)
        activities                                    ----------   -----------
Cash flows from financing activities:
   Proceeds from stock options and purchase plan            285           402
   Proceeds from debt                                        --         4,128
   Principal payments on debt obligations                  (308)       (6,460)
   Proceeds from notes receivables                           29            --
   Proceeds from notes receivable from stockholder          100            36
   Principal payment on capital lease                      (408)         (396)
   Repurchase of common stock                            (2,306)           --
                                                      ----------   -----------
     Net cash used in financing activities               (2,608)       (2,290)
                                                      ----------   -----------
   Net increase (decrease) in cash and cash               9,269      (10,299)
     equivalents
   Cash and cash equivalents, beginning of period         4,196        16,915
                                                      ==========   ===========
   Cash and cash equivalents, end of period           $  13,465    $    6,616
                                                      ==========   ===========
Cash Paid:
        Interest                                      $     170    $      624
                                                      ==========   ===========
   Income taxes                                       $      --    $      332
                                                      ==========   ===========
Noncash financing and investing activities:
   Note receivable in exchange for net assets sold    $   1,976    $       --
                                                      ==========   ===========
   Options vesting in reorganization costs            $     357    $       --
                                                      ==========   ===========

    See accompanying notes to Condensed Consolidated Financial Statements


<PAGE>


                          CORSAIR COMMUNICATIONS, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (Unaudited)

1. Basis of Presentation

         The accompanying  unaudited consolidated financial information has been
   prepared by Corsair  Communications,  Inc.  ("Corsair"  or the  "Company") in
   accordance  with  generally  accepted   accounting   principles  for  interim
   financial statements and pursuant to the rules of the Securities and Exchange
   Commission  for Form 10-Q and  Article  10 of  Regulation  S-X.  Accordingly,
   certain  information and footnotes required by generally accepted  accounting
   principles  for  complete  financial  statements  have been  omitted.  In the
   opinion  of  management,  all  adjustments  considered  necessary  for a fair
   presentation  have  been  included,  and that all such  adjustments  are of a
   normal and recurring  nature. On June 23, 1998,  Corsair acquired  Subscriber
   Computing,   Inc.   ("SCI")  in  a   combination   accounted  for  under  the
   pooling-of-interests  method of accounting.  Corsair's condensed consolidated
   financial statements have been restated to include the financial position and
   results of SCI for all periods  presented.  Operating results for the periods
   presented are not necessarily  indicative of the results that may be expected
   for any future periods.  These condensed  consolidated  financial  statements
   should be read in conjunction  with Corsair's  Annual Report on Form 10-K for
   the year ended December 31, 1998.

         The  condensed   consolidated   financial  statements  include  Corsair
   Communications,   Inc.,   and  its   subsidiary.   Significant   intercompany
   transactions and accounts have been eliminated.


2.    Net Income (Loss) Per Share

         Basic net  income  (loss)  per share is based on the  weighted  average
   number of shares of common stock outstanding  during the period.  Diluted net
   income (loss) per share is based on the weighted  average number of shares of
   common stock  outstanding  during the period and dilutive  common  equivalent
   shares from options and  warrants  outstanding  during the period.  No common
   equivalent   shares  are   included   for  loss  periods  as  they  would  be
   antidilutive.  Dilutive common equivalent shares consist of stock options and
   stock warrants and their effect is computed using the treasury stock method.

   The  following  tables  set forth the  computations  of shares and net income
   (loss) used in the  calculation  of basic and  diluted net income  (loss) per
   share  for the  three  and six  months  ended  June  30,  1999  and  1998 (in
   thousands, except per share data):

                                     Three Months Ended      Six Months Ended
                                         June 30,                 June 30,
                                      1999        1998       1999       1998
                                    ----------  ---------- ---------- ----------
    Basic net income (loss) per share data:
      Net income (loss)              $  2,421   $ (3,620)   $   287   $ (3,313)
                                     =========  ========== ========== ==========
      Actual weighted average common
       shares outstanding for the
       period                          17,832     17,660     17,933     17,632
                                    ==========  ========== ========== ==========
      Basic net income (loss) per
       share                        $    0.14   $  (0.20)  $   0.02   $  (0.19)
                                    ----------  ---------- ---------- ----------
    Diluted net income (loss) per
      share data:
      Net income (loss)             $   2,421   $(3,620)   $    287   $ (3,313)
                                    ==========  ========== ========== ==========
      Actual weighted average
       common shares oustanding
       for the period                  17,832     17,660     17,933     17,632
      Stock options and warrants
       outstanding                        404         --        467         --
                                    ----------  ---------- ---------- ----------
    Shares used in diluted per         18,236     17,660     18,400     17,632
      share:                        ==========  ========== ========== ==========
    Diluted net income (loss) per   $    0.13   $  (0.20)  $   0.02   $  (0.19)
    share                           ==========  ========== ========== ==========


<PAGE>



2.     Net Income (Loss) Per Share (continued)

   The Company has excluded the impact of  approximately  1,637,679  outstanding
   options to purchase  common  stock at a weighted  average  exercise  price of
   $8.17 during the three and six months ended June 30,  1998,  and  outstanding
   warrants to purchase 108,334 and 194,249 shares of common stock at a weighted
   average  exercise  price of $6.65 and $10.89  during the three and six months
   ended June 30, 1999 and 1998, respectively,  since their inclusion in diluted
   per share results would have been antidilutive.


3.     Inventories

   Inventories  are stated at the lower of cost or market and are  summarized as
   follows (in thousands):

                                                      June 30,     December
                                                        1999        31, 1998
                                                     -----------   ----------
    Raw materials                                    $   1,145     $   2,600
    Work in progress                                       619           311
    Finished goods                                         882         2,765
                                                     ===========   ==========
                                                     $   2,646      $  5,676
                                                     ===========   ==========


4.    Common Stock Repurchase

   During the six months  ended  June 30,  1999,  the  Company  has  repurchased
   598,000 shares of its common stock at a cost of $2.3 million.

5. Merger with Subscriber Computing, Inc.

       On June 23, 1998, Corsair issued  approximately 3.9 million shares of its
   common stock in exchange for all of the outstanding shares of common stock of
   SCI, a provider of  software  systems to the paging,  cellular  and  Personal
   Communication  Service industries.  The merger was accounted for as a pooling
   of interests, and accordingly, the Company's condensed consolidated financial
   statements  have been restated to include the financial  position and results
   of SCI for all  periods  presented.  As a result of the  merger,  the Company
   incurred merger related and other charges of $4.5 million  consisting of $2.8
   million in transaction  costs, $1.5 million in accrued  termination  benefits
   for 20  employees  and  redundant  facility  and  other  equipment  costs  of
   $200,000.

   The results of operations previously reported by the separate enterprises and
   the combined amounts presented at the time of the merger are summarized below
   (in thousands):

                                      Corsair           SCI         Combined
                                    -------------   ------------   ------------
     Six Months Ended June 30, 1999

            Total revenue            $    29,682     $    7,879      $  37,561
            Extraordinary loss                --            226            226
            Net income (loss)              3,861         (7,174)        (3,313)


6.    Reorganization Costs

On  February  3,  1999,  the  Company  signed a letter of  intent  to  develop a
strategic  relationship for the  development,  sales and marketing of a wireless
location product. As a result of entering into the strategic  relationship,  the
Company  discontinued  a  development  project,  which  resulted  in a charge of
$856,000,  consisting  of  $649,000  in  accrued  termination  benefits  for  13
employees and equipment write-downs of $207,000. As of June 30, 1999, all of the
accrued termination benefits had been paid. 7. Loss on Sale of Assets

   Also on February 3, 1999,  the Company sold  substantially  all of the assets
   relating to its  Communication  Resource  Manager  billing system and certain
   related  products  to  Wireless   Billing  Systems   ("WBS"),   a  California
   corporation, pursuant to the terms of an Asset Purchase Agreement.

       In  conjunction  with the sale,  the Company  received from WBS a secured
   promissory note receivable of $2.2 million,  which was $2.2 million less than
   the net book value of the net assets transferred to WBS,  consisting of cash,
   accounts receivable,  property and equipment,  and deferred revenue. The note
   bears  interest  at the  rate of 10% per  annum,  payable  in  equal  monthly
   installments  based upon a sixty  month  amortization  schedule  with a final
   payment of the remaining  unpaid  principal with all accrued interest due and
   payable  in May,  2003.  The  Company  recorded a loss on the sale of the net
   assets  of  approximately  $2.2  million,  for  the  difference  between  the
   consideration received and the net book value of the assets transferred.

8.    Extraordinary Item

    In the  second  quarter  of fiscal  1998,  Corsair  incurred  a loss on debt
    extinquishment of $226,000 associated with paying the principal and interest
    of $4.8 million of short-term  and  long-term  notes  payable.  The loss was
    comprised of the amortization of the remaining loan fees associated with the
    debt issuance.



<PAGE>


Item 2.  Management's  Discussion  and  Analysis of  Financial  Condition  and
Results of Operations

      This discussion may contain forward-looking  statements that involve risks
and uncertainties.  The actual results of Corsair Communications,  Inc. and it's
subsidiary  ("Corsair"or  the "Company) may differ  materially  from the results
discussed in such  forward-looking  statements.  Factors that might cause such a
difference  include,  but are not  limited  to,  those  discussed  in "Risks and
Uncertainties"  below.  Corsair undertakes no obligation to release publicly the
results of any revisions to these  forward-looking  statements to reflect events
or circumstances arising after the date hereof.

The following should be read in conjunction with Corsair's  unaudited  condensed
consolidated financial statements and notes thereto.



      Corsair is a leading  provider of software  and system  solutions  for the
wireless industry. Corsair's PhonePrint(R) system has proven highly effective in
reducing cloning fraud. The PhonePrint system has prevented hundreds of millions
of fraudulent call attempts;  some of Corsair's  customers have reported up to a
95% reduction in cloning fraud losses after deploying PhonePrint.  The Company's
PrePay(TM) billing system provides wireless  telecommunications  carriers with a
prepaid  system  designed  to  fully   integrate  with  the  upcoming   wireless
intelligent  network  standards.  The Company  believes  that its  products  can
provide a number of benefits to wireless telecommunications  carriers, including
reduced costs,  improved cash flow,  increased  market  penetration and improved
customer service.


Recent Events

      On February  3, 1999,  the Company  sold  substantially  all of the assets
relating  to its  Communication  Resource  Manager  ("CRM")  billing  system and
certain  related  products to Wireless  Billing  Systems  ("WBS"),  a California
corporation,  pursuant to the terms of an Asset Purchase Agreement.  The Company
recorded a loss on the sale of assets of  approximately  $2.2  million,  for the
difference between the consideration  received and the net book value of the net
assets transferred to WBS, consisting of cash, accounts receivable, property and
equipment and deferred revenue

      Also on February 3, 1999, the Company signed a letter of intent to develop
a strategic relationship for the development,  sales and marketing of a wireless
location product. As a result of entering into the strategic  relationship,  the
Company  discontinued  a  development  project,  which  resulted  in a charge of
$856,000,  consisting  of  $649,000  in  accrued  termination  benefits  for  13
employees and equipment write-downs of $207,000.

Results of Operations

Revenues:  For the three months ended June 30, 1999,  total  revenues were $16.0
million,  compared with $19.0  million for the same period in 1998.  For the six
months ended June 30, 1999,  total  revenues were $31.3  million,  compared with
$37.6 million for the comparable  1998 period.  The decrease in revenues for the
three and six months  ended June 30, 1999 was  primarily  due to the decrease in
PhonePrint  hardware  revenues  that has  resulted  from the  saturation  of the
domestic markets.  In addition,  software and service revenues  decreased due to
the  sale  of  CRM  assets  in  the  first  quarter  of  1999,  from  which  the
corresponding license and consulting fees were discontinued.  For the six months
ended June 30, 1999,  international  revenues  comprised 69% of total  revenues,
compared with 34% of total  revenues for the same period in the prior year.  The
Company expects  international  revenues to increase both in absolute dollars as
well as in a percentage of revenues as the acceptance of the Company's  products
continues to increase in international markets.

      Gross Profit: Gross profit was consistent at 60% of total revenues for the
three  months ended June 30, 1999 with 61% of revenues in the  comparable  three
month period of 1998.  For the six months ended June 30, 1999,  gross profit was
61%,  up from 56% in the same  period of 1998.  For the six month  periods,  the
increase in gross profit was due primarily to improved gross profits on services
resulting from lower personnel related costs which,  prior to the sale of assets
during the first  quarter of 1999,  supported the CRM product line in performing
various  consulting  contracts.  For the three months  ended June 30, 1999,  the
increase in gross profit on service was offset by a decrease in gross profits on
hardware, resulting from increased PrePay hardware sales at lower margins.

      Research  and  Development:  For the three  months  ended  June 30,  1999,
research and development  expenses were $2.5 million  compared with $4.3 million
for the same period of 1999,  a decrease of $1.8  million or 42%.  For the first
six months of 1999, research and development expenses were $6.0 million compared
with $9.0  million  for the same period of 1998,  a decrease of $3.0  million or
33%. The decrease in research and development  expenses was due primarily to the
reduction  in  headcount  resulting  from  the CRM  sale  and  the  discontinued
development  project.  Research  and  development  expenses  were 19% and 24% of
revenues for the six months ended June 30, 1999 and 1998, respectively.

      Sales and Marketing:  For the three months ended June 30, 1999,  sales and
marketing  expenses  were $3.5 million  compared  with $4.1 million for the same
period of 1998, a decrease of $669,000 or 16%. For the first six months of 1999,
sales and marketing  expenses  were $7.4 million  compared with $7.6 million for
the same period of 1998, a decrease of $182,000 or 2%. The decrease in sales and
marketing  expense  was  due to the  reduction  in  sales  force  and  headcount
following the CRM sale and the  associated  costs relating to reduced travel and
commissions costs associated with the decreased  headcount.  Sales and marketing
expenses were 24% and 20% of revenues for the six months ended June 30, 1999 and
1998, respectively.

      General and  Administrative:  For the three  months  ended June 30,  1999,
general and administrative expenses were $1.6 million compared with $2.4 million
for the same period of 1998,  a decrease  of $823,000 or 34%.  For the first six
months of 1999, general and  administrative  expenses were $3.2 million compared
with $4.4 million for the comparable period of 1998, a decrease of $1.2 million,
or  27%.  The  decrease  for  the  three  and six  month  periods  is due to the
consolidation of operations  following the merger in the second quarter of 1998.
General and  administrative  expenses  were 10% and 12% of revenues  for the six
months ended June 30, 1999 and 1998, respectively.

      Merger  Related  Expenses:  As  discussed  in Note 5 of the  Notes  to the
Condensed Consolidated  Financial Statements,  the Company incurred $4.5 million
in merger  related costs  resulting  from the  acquisition  of SCI. The one-time
charges included  transaction costs,  termination  benefits for approximately 20
employees,  and redundant facility and other equipment costs associated with the
merger.

      Reorganization Costs: As discussed in Note 6 of the Notes to the Condensed
Consolidated  Financial  Statements,  the  Company  discontinued  a  development
project,  which  resulted in a charge of $856,000 in certain  one-time  charges,
consisting  of $649,000 in  termination  benefits for 13 employees and equipment
write-downs of $207,000.

      Loss  on Sale of  Assets:  As  discussed  in  Note 7 of the  Notes  to the
Condensed Consolidated Financial Statements,  the Company sold substantially all
of the assets relating to its CRM billing system and certain related products to
WBS. The sale of assets  resulted in a loss of $2.2  million for the  difference
between  the  consideration  received  and the net book  value of the net assets
transferred  to WBS,  consisting  of cash,  accounts  receivable,  property  and
equipment and deferred revenue.

      Other  Income,  Net:  Net other  income and  expense  consists of interest
income  from the  Company's  cash and  short-term  investments,  net of interest
expense on the Company's equipment loans,  equipment lease lines and other loans
and non-operating income. The decrease in net other income for the three and six
months  ended  June  30,  1999 was due to a  favorable  settlement  of  $325,000
recorded in the first  quarter of 1998 from a customer  dispute,  in addition to
the lower average cash investment balances held in 1999.

Liquidity and Capital Resources

Corsair has funded its  operations  through a series of Preferred  Stock private
placements,  debt financing,  and an initial public offering in July 1997. As of
June 30, 1999, Corsair's cash and short-term  investments were $41.7 million, an
increase of $3.1  million from  December  31, 1998.  The increase is primarily a
result of cash  generated  by  operations  of $7.1  million and stock option and
purchase plan activities of $285,000.  These cash flows were partially offset by
cash outflows for investing  and financing  activities,  such as payment for the
sale of CRM assets of $1.2 million,  repurchase of common stock of $2.3 million,
and cash paid on lease and debt obligations of $716,000.

      Corsair  believes  that  existing  sources  of  liquidity  and  internally
generated  cash, if any, will be sufficient  to meet  Corsair's  projected  cash
needs for at least the next 12  months.  Corsair  intends  to  continue  product
development  efforts in the future and expects to fund those  activities  out of
working  capital.  There can be no  assurance,  however,  that  Corsair will not
require  additional  financing  prior  to such  date to fund its  operations  or
possible  acquisitions.  In addition,  Corsair may require additional  financing
after  such  date to fund its  operations.  There can be no  assurance  that any
additional  financing  will be available to Corsair on acceptable  terms,  or at
all, if and when required by Corsair.

Year 2000 Issue

      The year 2000 issue  refers to the  inability  of  certain  date-sensitive
computer  chips,  software  and systems to  recognize a two-digit  date field as
belonging to the 21st Century.  Mistaking  "00" for 1900 or any other  incorrect
year could result in a system failure or miscalculations, causing disruptions to
Corsair's  products  or  operations  (including  manufacturing,  or a  temporary
inability to process  transactions  or send invoices,  or engage in other normal
business activities). The year 2000 issue may create unforeseen risks to Corsair
from product or internal  computer system failures,  as well as from the failure
of third party  computer  systems  with which it deals.  Failures  of  Corsair's
products or computer  systems and or third party  computer  systems could have a
material adverse impact on Corsair's ability to conduct its business.

Management initiated an enterprise-wide  program which began in November 1998 to
prepare  Corsair's  computer  systems  and  applications  for the year 2000 with
respect to: (1) the portion of products  developed  internally  by Corsair,  (2)
systems  and  applications  developed  by  third  parties  and  incorporated  in
Corsair's products, and (3) systems relied upon to conduct operations (including
payroll,  accounting and cash  management).  With respect to software  developed
internally  by the  Company,  the results of that  evaluation  revealed  certain
source codes that were unable to appropriately  interpret the upcoming  calendar
year 2000.  The Company has completed its work to upgrade these programs to make
them capable of processing data  incorporating  year 2000 dates without material
errors or  interruptions.  With respect to third party systems and  applications
incorporated  in the  Company's  products or relied upon to conduct  operations,
each was assigned a level of criticality based on their impact on the Company:

    Mission Critical :  The Company will be at significant risk because no
                        work-around is available
    Business Critical:  The Company can manage direct impact from loss of use
                        by using work-around
    Non-Critical:       Systems that do not directly affect daily operations,
                        office productivity tools scheduled to be upgraded
                        or systems that will be retired.

All vendors  whose  systems or  applications  are used by the Company  under the
Mission  Critical  level  have  indicated  that  their  software  is  year  2000
compliant,  and the Company  either has or is in the process of  installing  the
compliant  version.  Only one vendor  listed under the Business  Critical  level
remains under  evaluation,  with all other vendor's products either installed or
in process of having the compliant version installed.  This includes all systems
relied upon to conduct  operations.  Final determination of the pending Business
Critical vendor - with action towards a possible  contingency plan - is expected
by the end of September 1999. From the remaining vendors with products listed as
Non-Critical,  over 90% have  represented  that  their  products  are year  2000
compliant. In order to test the vendor representations, the Company will conduct
an  in-house  review  of  each  workstation  and  server  to  verify  year  2000
compliance.  The project  completion date for the in-house review is October 30,
1999.

Currently,  the Company is establishing  contingency plans to address the impact
to the Company in the event its suppliers, products and internal systems are not
year 2000 compliant.  Such plans  principally  involve  identifying  alternative
vendors or internal  remediation.  Evaluation of year 2000 issues is continuing,
and there can be no assurance that additional issues, not presently known by the
Company,  will not be  discovered  which  could  present a material  risk to the
function of the  Company's  products and have a material  adverse  effect on the
Company's business, operating results and financial condition.

It is difficult to estimate the total costs of  implementing  the Company's Year
2000 Efforts,  as they are being conducted primarily by Corsair employees and in
Corsair  facilities.  However,  the total cost of the testing and  conversion of
internally  developed  hardware and  software  was expected to be  approximately
$600,000 which has been  substantially  incurred by June 30, 1999. A significant
portion  of  these  costs  were  not  incremental   costs  to  Corsair,   rather
redeployment of existing information  technology  resources.  Corsair expects to
continue to incur  internal staff costs as well as consulting and other expenses
related to infrastructure and facilities  enhancements  necessary to prepare the
systems for the year 2000.


RISKS AND UNCERTAINTIES

      This  Quarterly  Report  may  contain  predictions,  estimates  and  other
forward-looking statements that involve risks and uncertainties.  Such risks and
uncertainties  could cause actual results to differ  materially from the results
discussed  in the  forward-looking  statements.  Factors  that  could  cause  or
contribute to such  differences  include those discussed below, as well as those
discussed  elsewhere in this Quarterly Report.  Corsair undertakes no obligation
to  release  publicly  the  results  of any  revisions  to  the  forward-looking
statements to reflect events or circumstances arising after the date hereof.

      Lack of Sustained Profitability. The Company has incurred net losses since
its  incorporation  resulting in an  accumulated  deficit of $52.3 million as of
June 30, 1999.  There can be no assurance  that the Company's  existing  revenue
levels can be  sustained,  and past and existing  revenue  levels  should not be
considered  indicative of future  results or growth.  Moreover,  there can be no
assurance that the Company will sustain  profitability  on a quarterly or annual
basis.   Operating   results   for  future   periods  are  subject  to  numerous
uncertainties specified elsewhere in this Quarterly Report. The Company's future
operating  results  will  depend  upon,  among  other  factors:  the  demand for
PhonePrint; the demand for PrePay, the Company's ability to introduce successful
new products and product enhancements,  including products that are sold to both
analog  network   carriers  and  digital  network   carriers  such  as  Personal
Communications  Services ("PCS") and Enhanced  Specialized Mobile Radio ("ESMR")
carriers; the level of product and price competition; the ability of the Company
to  expand  its   international   sales;  the  Company's  success  in  expanding
distribution  channels;  the  Company's  success  in  attracting  and  retaining
motivated  and  qualified  personnel;  and the  ability of the  Company to avoid
patent and intellectual property litigation. If the Company is not successful in
addressing such risks, as well as the others set forth in this Quarterly Report,
the  Company's  business,  operating  results and  financial  condition  will be
materially adversely affected.

      Dependence on  PhonePrint;  Dependence on Analog  Networks.  To date,  the
Company's revenues have primarily been attributable to PhonePrint, the Company's
cloning fraud  prevention  system,  and the Company  anticipates that PhonePrint
will  continue  to account  for a majority  of the  Company's  revenues at least
through the end of 1999. As a result,  the Company's  future  operating  results
will depend on the demand for and market acceptance of PhonePrint.  A relatively
small number of carriers that operate analog  networks  constitute the potential
customers for  PhonePrint.  A large majority of the carriers that operate analog
networks in the largest U.S. markets have to varying degrees already implemented
cloning fraud  solutions,  and the Company believes the demand for cloning fraud
solutions in the U.S.  has begun to decline and will  continue to decline in the
future. If not offset by growth in international markets, this trend will have a
material  adverse effect on PhonePrint  sales.  Over time, this trend could also
occur in international  markets.  As carriers that operate analog networks adopt
cloning  fraud  solutions for their  existing  networks,  the future  commercial
success of  PhonePrint  will depend in part on the further  expansion  of analog
networks by those carriers.  The rate of  implementation  of new analog networks
has  slowed  significantly  and  some  carriers  have  determined  not  to  make
additional  investments in their existing  analog  networks.  As analog networks
expand  slowly or cease to expand,  the future  demand  for  PhonePrint  will be
materially adversely affected.  There can be no assurance that the international
market for cloning fraud  solutions will grow as the U.S.  market  declines,  or
that current or future levels of revenues  attributable  to  PhonePrint  will be
maintained or will not decline. Any reduction in the demand for PhonePrint would
have a material adverse effect on the Company's business,  operating results and
financial condition.

      All of the Company's  customers for  PhonePrint to date have been carriers
that operate  analog  networks.  Wireless  services  operating in digital  mode,
including PCS and ESMR in the U.S. and Global  System for Mobile  Communications
("GSM") in many foreign countries  (including many European  countries),  use or
may use authentication  processes that automatically establish the validity of a
phone each time it attempts to access the wireless  telecommunications  network.
The Company is not aware of any information that suggests that cloners have been
able to break the authentication encryption technologies.  Unless the encryption
technologies that form the basis for authentication  are broken by cloners,  the
Company does not believe that operators of digital  networks will purchase third
party radio frequency ("RF") fingerprinting  solutions for cloning fraud such as
PhonePrint.  In addition,  authentication processes for analog networks are also
currently  available and are being employed by a significant number of carriers.
The Company is also very  dependent on the  continued  widespread  use of analog
networks.  Industry  experts project that the number of analog phones and analog
networks  will  ultimately  decline.  Any  reduction in demand by carriers  that
operate analog networks for cloning fraud  solutions  would, or any reduction in
the use of analog phones could,  have a material adverse effect on the Company's
business, operating results and financial condition.

      Dependence on PrePay;  Dependence  on Ericsson  Radio Systems AB Switching
Equipment . The Company  anticipates that PrePay,  the Company's prepaid metered
billing  solution,  will  account  for a  growing  percentage  of the  Company's
revenues. As a result, the Company's future operating results will depend on the
demand for and market  acceptance  of PrePay.  To date,  only a small  number of
wireless  carriers have deployed PrePay,  and the rate of adoption of the PrePay
system will need to  increase  dramatically  in order to achieve  the  Company's
revenue  targets.   The  Company's  PrePay  solution  currently  only  works  in
conjunction with Ericsson  switching  equipment.  Therefore,  only carriers that
have deployed  Ericsson's  infrastructure  equipment are potential customers for
PrePay.  In order to expand  the  Company's  potential  customer  base by making
PrePay  compatible  with other  infrastructure  equipment,  the  Company and the
infrastructure  provider  each would have to  complete  significant  development
projects. There can be no assurance that Corsair will be able to cause PrePay to
work with any other infrastructure provider's equipment, or that Corsair will be
capable of causing PrePay to work on future versions of Ericsson equipment.  Any
reduction  in the demand for  prepaid  billing  services  or any failure to gain
market  acceptance for Corsair's  PrePay solution would have a material  adverse
effect on the Company's business, operating results and financial condition.

      Fluctuations  in Quarterly  Financial  Results;  Lengthy Sales Cycle.  The
Company has  experienced  significant  fluctuations  in revenues  and  operating
results  from  quarter to quarter  due to a  combination  of factors and expects
significant  fluctuations to continue in future periods. Factors that are likely
to cause the Company's revenues and operating results to vary significantly from
quarter to  quarter  include,  among  others:  the level and timing of  revenues
associated  with  PhonePrint  and  PrePay;  the  timing of the  introduction  or
acceptance of new products and services and product  enhancements offered by the
Company  and its  competitors;  technological  changes  or  developments  in the
wireless  telecommunications  industry;   dependence  on  a  limited  number  of
products;  the size, product mix and timing of significant orders; the timing of
system  revenue;  competition  and  pricing in the  markets in which the Company
competes;   possible  recalls;  lengthy  sales  cycles;  production  or  quality
problems;  the  timing  of  development  expenditures;  expansion  of sales  and
marketing  operations;  changes in  material  costs;  disruptions  in sources of
supply;  capital spending;  the timing of payments by customers;  and changes in
general economic conditions.  These and other factors could cause the Company to
recognize  relatively large amounts of revenue over a very short period of time,
followed by a period  during  which  relatively  little  revenue is  recognized.
Because of the relatively fixed nature of most of the Company's costs, including
personnel and facilities costs, any  unanticipated  shortfall in revenues in any
quarter would have a material adverse impact on the Company's  operating results
in that quarter and would likely result in substantial  adverse  fluctuations in
the price of the Company's Common Stock.  Accordingly,  the Company expects that
from time to time its future operating results will be below the expectations of
market analysts and investors, which would likely have a material adverse effect
on the prevailing market price of the Common Stock.

      A carrier's  decision to deploy PhonePrint or PrePay typically  involves a
significant  commitment  of capital by the  carrier  and  approval by its senior
management.  Consequently,  the timing of purchases are subject to uncertainties
and delays frequently associated with significant expenditures,  and the Company
is not able to accurately  forecast  future sales of  PhonePrint  or PrePay.  In
addition,  purchases of  PhonePrint  and PrePay  involve  testing,  integration,
implementation and support requirements.  For these and other reasons, the sales
cycle  associated  with the purchase of PhonePrint and PrePay  typically  ranges
from  three to 18 months  and is  subject  to a number of risks  over  which the
Company has little  control,  including  the  carrier's  budgetary  and spending
constraints and internal  decision-making  processes.  In addition,  a carrier's
purchase  decision may be delayed as a result of announcements by the Company or
competitors   of  new  products  or  product   enhancements   or  by  regulatory
developments.  The Company expects that there will be a lengthy sales cycle with
respect to new  products,  if any,  that the  Company  may offer in the  future.
Because of this lengthy sales cycle and the  relatively  large size of a typical
order, if revenues  forecasted from a specific customer for a particular quarter
are not  realized in that  quarter,  the  Company's  operating  results for that
quarter could be materially and adversely affected.

      Dependence on  Distributors.  Domestically  and in certain Latin  American
countries,  PhonePrint  is currently  marketed  primarily  through the Company's
direct sales efforts. The Company has entered into distribution  agreements with
respect to PhonePrint with, amongst others,  Motorola, Inc., Ericsson and Aurora
Wireless  Technologies,   Ltd.  and  a  sales  referral  agreement  with  Lucent
Technologies,  Inc. and  Sumitomo  Corporation  of America.  PrePay is currently
marketed primarily through the Company's  distribution  agreement with Ericsson,
and to a limited extent, through the Company's direct sales efforts. The Company
seeks to pursue  distribution  agreements and other forms of sales and marketing
arrangements  with other companies and the Company  believes that its dependence
on distributors and these other sales and marketing  relationships will increase
in the future, both with respect to PhonePrint, PrePay and new products, if any,
that the  Company  may  offer  in the  future.  There  are no  minimum  purchase
obligations  applicable to any existing distributor or other sales and marketing
partners and the Company does not expect to have any  guarantees  of  continuing
orders.  There can be no assurance that any existing or future  distributors  or
other sales and marketing  partners will not become  competitors  of the Company
with respect to PhonePrint,  PrePay or any future product either by developing a
competitive  product  themselves or by distributing a competitive  offering.  In
fact,  the Company  believes that with respect to PrePay,  Ericsson from time to
time may evaluate and seek to distribute or acquire alternative vendor's prepaid
product offerings. Any failure by the Company's existing and future distributors
or other sales and marketing  partners to generate  significant  revenues  could
have a material adverse effect on the Company's business,  operating results and
financial condition.

      Risks  Associated  with  International  Markets.  In an  effort  to offset
declining demand in the U.S. for cloning fraud solutions, the Company intends to
devote  significant  marketing  and sales efforts over the next several years to
increase its sales of PhonePrint  and PrePay to  international  customers.  This
expansion  of  sales  efforts  outside  of the  U.S.  will  require  significant
management attention and financial resources. There can be no assurance that the
Company  will  be  successful  in  achieving  significant  growth  of  sales  of
PhonePrint and PrePay in international  markets.  The Company does not expect to
sell PhonePrint in the many international markets that rely primarily on digital
wireless networks,  including many European countries.  In addition, the Company
does not anticipate  selling PrePay to any wireless  carriers that do not employ
Ericsson switching equipment.

      The Company's  international  sales may be  denominated in foreign or U.S.
currencies.  The Company does not currently  engage in foreign  currency hedging
transactions.  As a  result,  a  decrease  in the  value of  foreign  currencies
relative to the U.S. dollar could result in losses from transactions denominated
in foreign  currencies.  With respect to the Company's  international sales that
are U.S.  dollar-denominated,  such a decrease could make the Company's  systems
less price-competitive. Additional risks inherent in the Company's international
business  activities include changes in regulatory  requirements,  the costs and
risks of  localizing  systems  in foreign  countries,  tariffs  and other  trade
barriers,   political  and  economic   instability,   reduced   protection   for
intellectual property rights in certain countries,  difficulties in staffing and
managing foreign operations, difficulties in managing distributors,  potentially
adverse tax consequences,  foreign currency exchange fluctuations, the burden of
complying  with a wide  variety of complex  foreign  laws and  treaties  and the
possibility  of  difficulty  in  accounts  receivable  collections.  The Company
anticipates  that  product  service and  support  will be more  complicated  and
expensive with respect to products sold in  international  markets.  The Company
may need to adapt its products to conform to different  technical standards that
may exist in foreign  countries.  Future  customer  purchase  agreements  may be
governed  by  foreign  laws,  which may  differ  significantly  from U.S.  laws.
Therefore, the Company may be limited in its ability to enforce its rights under
such agreements and to collect  damages,  if awarded.  There can be no assurance
that  any of  these  factors  will not have a  material  adverse  effect  on the
Company's business, operating results and financial condition.

      Potential Acquisitions.  The Company has in the past evaluated and expects
in the future to pursue  acquisitions  of businesses,  products or  technologies
that complement the Company's  business.  Future  acquisitions may result in the
potentially  dilutive issuance of equity securities,  the use of cash resources,
the  incurrence of  additional  debt,  the write-off of in-process  research and
development or software  acquisition and development  costs and the amortization
of expenses related to goodwill and other intangible  assets, any of which could
have a material adverse effect on the Company's business,  operating results and
financial  condition.  Future  acquisitions  would involve  numerous  additional
risks, including  difficulties in the assimilation of the operations,  services,
products and personnel of an acquired  business,  the diversion of  management's
attention from other business  concerns,  entering  markets in which the Company
has little or no direct prior experience and the potential loss of key employees
of an acquired business. In addition, there can be no assurance that the Company
would be successful in completing any acquisition.  The Company currently has no
agreements or understandings with regard to any acquisition.

      Highly  Competitive  Industry.  The market  for  PhonePrint  is  intensely
competitive.  The Company believes that the primary  competitive  factors in the
cloning fraud prevention  market in which it currently  competes include product
effectiveness   and  quality,   price,   service  and  support   capability  and
compatibility with cloning fraud prevention systems used by the carrier in other
geographic  markets  and by the  carrier's  roaming  partners.  There has been a
tendency for carriers that purchase cloning fraud prevention systems to purchase
products from the company that  supplies  cloning  fraud  prevention  systems to
other carriers with whom the purchasing carrier has a roaming arrangement.  As a
result,  the Company  expects it will be  significantly  more  difficult to sell
PhonePrint  to a carrier if the  carrier's  roaming  partners use cloning  fraud
prevention systems supplied by a competitor.  Furthermore, once a competitor has
made a sale of  RF-based  cloning  fraud  prevention  systems to a carrier,  the
Company  expects  that it is  unlikely  that the  Company  would be able to sell
PhonePrint to that carrier.

      The Company's  principal  competitor for RF-based cloning fraud prevention
systems is Cellular Technical Services Company, Inc. ("CTS"). CTS has agreements
pursuant to which it has  installed or will install its RF-based  cloning  fraud
prevention  system in many major U.S.  markets.  PhonePrint also competes with a
number of alternative technologies, including profilers, personal identification
numbers  and  authentication.  The  Company  is  aware  of  numerous  companies,
including  GTE  Telecommunications  Services,  Inc.,  Authentix  Network,  Inc.,
Systems/Link and Lightbridge,  Inc., that currently are or are expected to offer
products in the cloning fraud prevention area. The expansion of digital networks
and the  reluctance of carriers to make further  investments  in their  existing
analog  infrastructure  has  limited  the demand for  PhonePrint.  In  addition,
carriers  may  themselves  develop   technologies  that  limit  the  demand  for
PhonePrint.  There  can be no  assurance  that any  such  company  or any  other
competitor  will not  introduce a new  product at a lower price or with  greater
functionality than PhonePrint.  Furthermore,  the demand for PhonePrint would be
materially adversely affected if wireless  telecommunications carriers implement
authentication  technology  applicable  to analog  phones as their sole  cloning
fraud solution in major markets,  if U.S. wireless  telecommunications  carriers
adopt a uniform  digital  standard  that reduces the need for digital  phones to
operate in analog mode while  roaming,  or if analog phone makers change product
designs and/or improve  manufacturing  standards to a point where the difference
from phone to phone in the radio waveform  becomes so small that it is difficult
for PhonePrint to identify a clone. There can be no assurance that any currently
available  alternative  technology  or any new  technology  will not  render the
Company's products obsolete or significantly reduce the market share afforded to
RF-based cloning fraud prevention systems like PhonePrint.

      The market for PrePay is new and increasingly competitive. PrePay competes
with a number of  alternative  prepaid  billing  products,  including  post-call
systems,  handset-based systems and adjunct switch systems. The Company is aware
of numerous companies,  including GTE Telecommunications  Services, Inc., Boston
Communications  Group,  Inc., Brite Voice Systems,  Inc.,  Comverse  Technology,
Inc., Glenayre Technologies,  Inc., National Telemanagement Corporation, Telemac
Cellular  Corporation,  Systems/Link  Corporation,  Prairie Systems,  Inc., ORGA
Kartensysteme   GmbH,  SEMA  Group,  Logica  plc,  Alcatel  USA,  Priority  Call
Management,  Lucent  Technologies,  Inc.,  TeleCommunication  Systems,  Inc. and
Northern  Telecom  Limited that  currently  are or are expected to offer prepaid
wireless  billing  products.  There can be no assurance that any such company or
other  competitor  will not  introduce  a new  product at a lower  price or with
greater functionality than PrePay.  Furthermore,  the demand for PrePay would be
materially   adversely   affected  if  wireless  carriers   implement   wireless
intelligent  network standards and a prepaid offering other than PrePay as their
sole  prepaid  solution in major  markets.  There can be no  assurance  that any
currently available alternative technology or any new technology will not render
the Company's  PrePay system obsolete or  significantly  reduce the market share
afforded to prepaid wireless billing systems like PrePay.

      The  market  for  other   products  and  services   provided  to  wireless
telecommunications   carriers  is  highly   competitive  and  subject  to  rapid
technological change,  regulatory  developments and emerging industry standards.
In addition, many wireless  telecommunications  carriers and vendors of switches
and other telecommunications equipment may be capable of developing and offering
products and services  competitive  with new products,  if any, that the Company
may offer in the future.  Trends in the  wireless  telecommunications  industry,
including greater  consolidation  and  technological or other  developments that
make it simpler or more cost-effective for wireless  telecommunications carriers
to provide certain services themselves could affect demand for new products,  if
any, offered by the Company, and could make it more difficult for the Company to
offer a cost-effective  alternative to a wireless  telecommunications  carrier's
own capabilities.

      The Company  believes that its ability to compete in the future depends in
part on a number of  competitive  factors  outside its  control,  including  the
ability to hire and retain employees,  the development by others of products and
services  that are  competitive  with the Company's  products and services,  the
price at which others offer  comparable  products and services and the extent of
its  competitors'  responsiveness  to  customer  needs.  Many  of the  Company's
competitors and potential  competitors  have  significantly  greater  financial,
marketing,  technical and other  competitive  resources  than the Company.  As a
result,  the Company's  competitors  may be able to adapt more quickly to new or
emerging  technologies  and changes in customer  requirements  or may be able to
devote  greater  resources  to the  promotion  and  sale of their  products  and
services.  To remain competitive in the market for products and services sold to
wireless  telecommunications  carriers,  the  Company  will need to  continue to
invest substantial resources in engineering,  research and development and sales
and marketing.  There can be no assurance that the Company will have  sufficient
resources to make such  investments or that the Company will be able to make the
technological advances necessary to remain competitive.  Accordingly,  there can
be no  assurance  that the  Company  will be able to compete  successfully  with
respect to new products, if any, it offers in the future.

      Customer  Concentration.  To date, a significant  portion of the Company's
revenues in any particular  period has been  attributable to a limited number of
customers,  comprised  entirely  of  wireless  telecommunications  carriers,  or
distributors  who resell the Company's  products to wireless  telecommunications
carriers.  For the six months ended June 30, 1999, Ericsson Radio Systems AB and
Telcel Celular C.A. each  accounted for greater than 10% of the Company's  total
revenues and collectively accounted for over 51% of the Company's total revenues
in  the  period.   BellSouth  Cellular  Corporation  and  GTE  Mobilnet  Service
Corporation  each accounted for greater than 10% of the Company's total revenues
in fiscal 1998 and  collectively  accounted for over 23% of the Company's  total
revenues in fiscal 1998. In fiscal 1997,  BellSouth  Cellular  Corporation,  GTE
Mobilnet  Service  Corporation and Southwestern  Bell Mobile Systems,  Inc. each
accounted for greater than 10% of the Company's  total  revenues in fiscal 1997,
and collectively  accounted for over 33% of the Company's total revenues for the
year. In fiscal 1996, AT&T Wireless Services, and Los Angeles Cellular Telephone
Company each accounted for greater than 10% of the Company's total revenues, and
collectively  accounted  for over 22% of the  Company's  total  revenues for the
year. A relatively  small number of carriers  that operate  analog  networks are
potential  customers for  PhonePrint  and a relatively  small number of carriers
that use Ericsson  infrastructure  equipment are potential customers for PrePay.
The Company believes that the number of potential customers for future products,
if any,  will be  relatively  small.  Any  failure  by the  Company to capture a
significant share of those customers could have a material adverse effect on the
Company's  business,  operating  results and  financial  condition.  The Company
expects a  relatively  small number of  customers  will  continue to represent a
significant   percentage  of  its  total  revenues  for  each  quarter  for  the
foreseeable  future,  although the companies that comprise the largest customers
in any given  quarter  may  change  from  quarter to  quarter.  The terms of the
Company's agreements with its customers are generally for periods of between two
and five years.  Although these  agreements  typically  contain annual  software
license fees and various service and support fees,  there are no minimum payment
obligations or  obligations  to make future  purchases of hardware or to license
additional  software.  Therefore,  there  can be no  assurance  that  any of the
Company's  current  customers  will  generate  significant  revenues  in  future
periods.

 Uncertainty Regarding Patents and Protection of Proprietary  Technology;  Risks
of Future  Litigation.  The Company  relies on a  combination  of patent,  trade
secret,  copyright  and trademark  protection  and  nondisclosure  agreements to
protect its proprietary  rights. The Company's success will depend in large part
on the ability of the Company to obtain patent  protection,  defend patents once
obtained,  license third party  proprietary  rights,  maintain trade secrets and
operate without  infringing  upon the patents and proprietary  rights of others.
The patent positions of companies in the wireless  telecommunications  industry,
including  the Company,  are generally  uncertain and involve  complex legal and
factual  questions.  There can be no assurance  that patents will issue from any
patent  applications  owned or licensed  to the  Company or that,  if patents do
issue,  the claims allowed would be sufficiently  broad to protect the Company's
technology. In addition, there can be no assurance that any issued patents owned
by  or  licensed  to  the  Company  will  not  be  challenged,   invalidated  or
circumvented,  or that the rights granted  thereunder  will provide  competitive
advantages to the Company.

      Patents issued and patent  applications filed relating to products used in
the  wireless  telecommunications  industry  are  numerous  and  there can be no
assurance  that current and potential  competitors  and other third parties have
not filed or in the future will not file  applications for, or have not received
or in the future  will not  receive,  patents or obtain  additional  proprietary
rights  relating to products  used or proposed to be used by the Company.  There
can be no  assurance  that  the  Company  is  aware  of all  patents  or  patent
applications  that may materially  affect the Company's  ability to make, use or
sell any current or future products.  U.S. patent  applications are confidential
while pending in the U.S. Patent and Trademark Office,  and patent  applications
filed in foreign  countries  are often first  published six months or more after
filing.  There can also be no  assurance  that  third  parties  will not  assert
infringement  claims  against  the  Company  in the  future  or  that  any  such
assertions will not result in costly litigation or require the Company to obtain
a license  to  intellectual  property  rights of such  parties.  There can be no
assurance that any such licenses  would be available on terms  acceptable to the
Company,  if at all.  Furthermore,  parties  making  such  claims may be able to
obtain  injunctive or other equitable  relief that could  effectively  block the
Company's  ability to make,  use,  sell or otherwise  practice its  intellectual
property (whether or not patented or described in pending patent  applications),
or to further develop or  commercialize  its products in the U.S. and abroad and
could  result in the award of  substantial  damages.  Defense of any  lawsuit or
failure to obtain any such license could have a material  adverse  effect on the
Company's business, operating results or financial condition.

      The  Company  also  relies on  unpatented  trade  secrets to  protect  its
proprietary  technology,  and no  assurance  can be given that  others  will not
independently develop or otherwise acquire the same or substantially  equivalent
technologies or otherwise gain access to the Company's proprietary technology or
disclose such  technology or that the Company can ultimately  protect its rights
to such unpatented proprietary technology.  No assurance can be given that third
parties will not obtain patent rights to such  unpatented  trade secrets,  which
patent rights could be used to assert  infringement  claims against the Company.
The  Company  also  relies on  confidentiality  agreements  with its  employees,
vendors,  consultants and customers to protect its proprietary technology. There
can be no assurance that these agreements will not be breached, that the Company
would have adequate  remedies for any breach or that the Company's trade secrets
will not otherwise become known to or be independently developed by competitors.
Failure  to obtain or  maintain  patent  and trade  secret  protection,  for any
reason,  could  have  a  material  adverse  effect  on the  Company's  business,
operating results and financial condition.

      Dependence  on New Product  Introductions  and Product  Enhancements.  The
Company's  future success depends on the timely  introduction  and acceptance of
new products and product enhancements.  However,  there can be no assurance that
any new products or product enhancements the Company attempts to develop will be
developed  successfully or on schedule, or if developed,  that they will achieve
market acceptance.  In addition, there can be no assurance that the Company will
successfully  execute  its  strategy  of  acquiring  businesses,   products  and
technologies  from  third  parties.  Any  failure by the  Company  to  introduce
commercially  successful new products or product enhancements or any significant
delay in the  introduction  of such new products or product  enhancements  would
have a material adverse effect on the Company's business,  operating results and
financial condition.

      The process of developing new products and product enhancements for use in
the wireless telecommunications industry is extremely complex and is expected to
become  more  complex  and   expensive  in  the  future  as  new  platforms  and
technologies  emerge.  In the past,  the Company has  experienced  delays in the
introduction of certain product enhancements, and there can be no assurance that
new products or product  enhancements  will be introduced on schedule or at all.
Any new products or product  enhancements  may also  contain  defects when first
introduced  or when new versions are released.  There can be no assurance  that,
despite  testing by the  Company,  defects  will not be found in new products or
product  enhancements after commencement of commercial  shipments,  resulting in
loss of or delay in market acceptance. Any loss of or delay in market acceptance
would  have a  material  adverse  effect on the  Company's  business,  operating
results and financial condition.

      Dependence on Third-Party  Products and Services;  Sole or Limited Sources
of Supply.  The Company  relies to a  substantial  extent on outside  vendors to
manufacture many of the components and subassemblies  used in PhonePrint and the
hardware  and third party  software  used in PrePay,  some of which are obtained
from a single supplier or a limited group of suppliers.  The Company's  reliance
on outside  vendors  generally,  and a sole or a limited  group of  suppliers in
particular, involves several risks, including a potential inability to obtain an
adequate supply of required components and reduced control over quality, pricing
and timing of delivery of components.  In the past, the Company has  experienced
delays in receiving materials from vendors, sometimes resulting in delays in the
assembly of products by the Company. Such delays, or other significant vendor or
supply quality issues, may occur in the future, which could result in a material
adverse  effect  on the  Company's  business,  operating  results  or  financial
condition.  The manufacture of certain of these components and  subassemblies is
specialized  and requires  long lead times,  and there can be no assurance  that
delays or shortages caused by vendors will not reoccur.  Any inability to obtain
adequate deliveries, or any other circumstance that would require the Company to
seek  alternative  sources of supply or to  manufacture  internally  could delay
shipment of the Company's  products,  increase its cost of goods sold and have a
material  adverse  effect  on the  Company's  business,  operating  results  and
financial condition.  In addition, from time to time, the Company must also rely
upon third  parties to develop and introduce  components  and products to enable
the Company,  in turn,  to develop new products  and product  enhancements  on a
timely and  cost-effective  basis.  In particular,  the Company must rely on the
development efforts of third party wireless infrastructure providers in order to
allow its PrePay product to integrate with both existing and future  generations
of the infrastructure equipment. There can be no assurance that the Company will
be able to  obtain  access  in a  timely  manner  to  third-party  products  and
development  services  necessary to enable the Company to develop and  introduce
new and enhanced products, that the Company will obtain third-party products and
development  services on commercially  reasonable terms or that the Company will
be able to  replace  third-party  products  in the event  such  products  become
unavailable,  obsolete or  incompatible  with future  versions of the  Company's
products.  The  absence  of, or any  significant  delay in, the  replacement  of
third-party  products  could have a  material  adverse  effect on the  Company's
business, operating results and financial condition.

      Dependence on Personnel. The success of the Company is dependent, in part,
on its ability to attract and retain highly qualified  personnel.  The Company's
future business and operating results depend upon the continued contributions of
its senior  management and other  employees,  many of whom would be difficult to
replace and certain of whom perform  important  functions for the Company beyond
those  functions  suggested  by their  respective  job  titles or  descriptions.
Competition  for such  personnel  is intense  and the  inability  to attract and
retain  additional  senior  management and other employees or the loss of one or
more  members of the  Company's  senior  management  team or current  employees,
particularly to competitors,  could  materially  adversely  affect the Company's
business,  operating results or financial  condition.  There can be no assurance
that the Company will be successful in hiring or retaining requisite  personnel.
None of the Company's employees has entered into employment  agreements with the
Company,  and the Company does not have any key-person  life insurance  covering
the lives of any members of its senior management team.

      Management of Growth.  The Company has rapidly and significantly  expanded
its  operations.  Such growth has placed,  and, if  sustained,  will continue to
place,  significant demands on the Company's  management,  information  systems,
operations  and  resources.  The strain  experienced to date has chiefly been in
hiring,  integrating and effectively  managing  sufficient  numbers of qualified
personnel to support the  expansion of the  Company's  business.  The  Company's
ability to manage any future  growth,  should it occur,  will continue to depend
upon the successful expansion of its sales, marketing, research and development,
customer   support   and   administrative   infrastructure   and   the   ongoing
implementation  and  improvement  of a variety of internal  management  systems,
procedures and controls. There can be no assurance that the Company will be able
to attract, manage and retain additional personnel to support any future growth,
if any,  or  will  not  experience  significant  problems  with  respect  to any
infrastructure expansion or the attempted implementation of systems,  procedures
and  controls.  Any  failure in one or more of these areas could have a material
adverse  effect on the Company's  business,  results of operations and financial
condition.

       Government  Regulation  and  Legal  Uncertainties.   While  most  of  the
Company's  operations  are not directly  regulated,  the Company's  existing and
potential  customers  are subject to a variety of U.S. and foreign  governmental
regulations.    Such    regulations   may   adversely    affect   the   wireless
telecommunications  industry,  limit the number of potential  customers  for the
Company's products or impede the Company's ability to offer competitive products
and services to the  wireless  telecommunications  industry or otherwise  have a
material  adverse  effect on the  Company's  business,  financial  condition and
results   of   operations.   Recently   enacted   legislation,   including   the
Telecommunications Act of 1996, deregulating the telecommunications industry may
cause  changes  in  the  wireless  telecommunications  industry,  including  the
entrance of new  competitors  and  industry  consolidation,  which could in turn
increase  pricing  pressures on the Company,  decrease  demand for the Company's
products,  increase the  Company's  cost of doing  business or otherwise  have a
material  adverse  effect  on the  Company's  business,  operating  results  and
financial  condition.  The  Telecommunications  Act  of  1996  contains  several
provisions  that may bear  directly  on the  Company's  existing  and  potential
customers in the U.S.,  including  provisions that require wireless  carriers to
interconnect  with local exchange carriers and contribute to a universal service
fund,  that limit the  ability of state and local  governments  to  discriminate
against  or  prohibit  certain  wireless  services  and that may  allow  certain
companies to bundle local and long distance  services  with wireless  offerings.
These   provisions   may  cause  an   increase   in  the   number  of   wireless
telecommunications carriers which could in turn increase the number of potential
customers of the Company. This could require the Company to expand its marketing
efforts with no assurance  that revenues would  increase  proportionately  or at
all.  Alternatively,  these provisions could encourage  industry  consolidation,
which would reduce the Company's potential customer base.  Currently the FCC and
state authorities are implementing the provisions of the  Telecommunications Act
of 1996 and  several  of the  decisions  by the FCC and  state  authorities  are
already being  challenged in court.  Therefore,  the Company cannot at this time
predict the extent to which the  Telecommunications  Act of 1996 will affect the
Company's  current and potential  customers or  ultimately  affect the Company's
business,  financial  condition  or results of  operations.  If the recent trend
toward  privatization  and  deregulation  of  the  wireless   telecommunications
industry  outside of the U.S. were to discontinue,  or if currently  deregulated
international markets were to reinstate  comprehensive  government regulation of
wireless telecommunications  services, the Company's business, operating results
and financial condition could be materially and adversely affected. In addition,
the problem of cloning fraud has received heightened attention from Congress and
the FCC, which are exploring  legislative and regulatory  initiatives that would
impose stricter penalties for, and increase enforcement against,  cloning fraud.
The Company  cannot  predict  the effect of such  initiatives  on the  Company's
business,  operating  results or financial  condition,  including demand for the
Company's products.

      Dependence  on  Growth  of  Wireless   Telecommunications   Industry.  The
Company's  future  financial  performance  will  depend in part on the number of
carriers seeking  third-party  solutions to the problem of cloning fraud and the
number of carriers seeking to implement prepaid billing  services.  Although the
wireless  telecommunications  industry  has  experienced  significant  growth in
recent  years,  there can be no  assurance  that such  growth  will  continue at
similar  rates,  or that,  if the  industry  does grow,  there will be continued
demand for the Company's  cloning fraud  prevention,  prepaid metered billing or
other products. Any decline in demand for wireless  telecommunications  products
and services in general  would have a material  adverse  effect on the Company's
business, operating results and financial condition.

       Risk of System  Failure.  The continued,  uninterrupted  operation of the
PhonePrint  system  depends on protecting it from damage from fire,  earthquake,
power loss,  communications  failure,  unauthorized  entry or other events.  Any
damage to or failure of a component or combination  of components  that causes a
significant  reduction in the  performance  of a PhonePrint  system could have a
material  adverse  effect  on the  Company's  business,  operating  results  and
financial condition.  The Company currently does not have liability insurance to
protect  against these risks and there can be no assurance  that such  insurance
will be available to the Company on commercially reasonable terms, or at all. In
addition,  if any  carrier  using  PhonePrint  encounters  material  performance
problems,  the  Company's  reputation  and its business,  operating  results and
financial condition could be materially adversely affected.

      Year 2000  Compliance.  The Company's  products use and are dependent upon
certain  internally  developed and third party software programs The Company has
initiated a review and  assessment  of all  hardware  and  software  used in its
products to confirm  that they will  function  properly  in the year 2000.  With
respect to software  developed  internally  by the Company,  the results of that
evaluation to date initially  revealed  certain source codes that were unable to
appropriately  interpret  the  upcoming  calendar  year 2000.  The  Company  has
completed its work to upgrade these  programs to make them capable of processing
data  incorporating  year 2000 dates without  material errors or  interruptions.
With respect to third party software incorporated in the Company's products, all
vendors whose software is used by the Company have indicated that their software
is or will be year 2000 compliant. Evaluation of year 2000 issues is continuing,
and there can be no assurance that additional issues, not presently known by the
Company,  will not be  discovered  which  could  present a material  risk to the
function of the  Company's  products and have a material  adverse  effect on the
Company's business, operation results and financial condition.

      Future Capital  Requirements.  The Company's  future capital  requirements
will depend upon many factors,  including the  commercial  success of PhonePrint
and PrePay,  the timing and success of new product  introductions,  if any,  the
progress of the  Company's  research  and  development  efforts,  the  Company's
results of  operations,  the status of  competitive  products and the  potential
acquisition of businesses,  technologies  or assets.  The Company  believes that
combination of existing sources of liquidity and internally  generated cash will
be sufficient to meet the Company's  projected  cash needs for at least the next
12 months. There can be no assurance, however, that the Company will not require
additional financing prior to such date to fund its operations. In addition, the
Company may require additional financing after such date to fund its operations.
There can be no assurance that any additional financing will be available to the
Company on  acceptable  terms,  or at all,  when  required  by the  Company.  If
additional  funds are raised by issuing equity  securities,  further dilution to
the existing stockholders will result. If adequate funds are not available,  the
Company  may be required to delay,  scale back or  eliminate  one or more of its
development or manufacturing  programs or obtain funds through arrangements with
third  parties that may require the Company to  relinquish  rights to certain of
its  technologies  or potential  products or other assets that the Company would
not otherwise  relinquish.  Accordingly,  the inability to obtain such financing
could  have a  material  adverse  effect on the  Company's  business,  operating
results and financial condition.

       Volatility of Stock Price. The market price of the Common Stock is likely
to be highly  volatile and could be subject to wide  fluctuations in response to
numerous  factors,  including,  but not limited  to,  revenues  attributable  to
PhonePrint  and  PrePay,  new  products or new  contracts  by the Company or its
competitors,  actual  or  anticipated  variations  in  the  Company's  operating
results,  the level of operating  expenses,  changes in  financial  estimates by
securities   analysts,   potential   acquisitions,   regulatory   announcements,
developments  with  respect to patents or  proprietary  rights,  conditions  and
trends in the wireless telecommunications and other industries,  adoption of new
accounting standards affecting the industry and general market conditions.  As a
result,  the Company expects that from time to time its future operating results
will be below the  expectations  of market  analysts and investors,  which would
likely have a material  adverse  effect on the  prevailing  market  price of the
Common Stock.  The  realization of any of the risks described in these "Risk and
Uncertainties"  could have a dramatic and adverse  impact on the market price of
the Common Stock.

      Further,  the stock  market  has  experienced  extreme  price  and  volume
fluctuations  that  have  particularly  affected  the  market  prices  of equity
securities of many companies in the  telecommunications  industry and that often
have been  unrelated or  disproportionate  to the operating  performance of such
companies. These market fluctuations, as well as general economic, political and
market conditions such as recessions or international  currency fluctuations may
adversely  affect the market price of the Common Stock.  In the past,  following
periods of volatility in the market price of the  securities of companies in the
telecommunications  industry,  securities class action litigation has often been
instituted against those companies.  Such litigation,  if instituted against the
Company,  could  result in  substantial  costs  and a  diversion  of  management
attention  and  resources,  which  would have a material  adverse  effect on the
Company.

Antitakeover  Effects of Stockholder Rights Plan,  Charter,  Bylaws and Delaware
Law. The Company has adopted a stockholders  rights plan.  This plan would cause
substantial dilution to any person or group that attempts to acquire the Company
on terms not approved by the Board of  Directions.  In addition,  the  Company's
Restated  Certificate  of  Incorporation   authorizes  the  Company's  Board  of
Directors (the "Board") to issue shares of undesignated  Preferred Stock without
stockholder approval on such terms as the Board may determine. The rights of the
holders of Common  Stock will be subject to, and may be  adversely  affected by,
the rights of the holders of any such Preferred  Stock that may be issued in the
future. Moreover, the issuance of Preferred Stock may make it more difficult for
a third party to acquire,  or may  discourage  a third party from  acquiring,  a
majority of the voting  stock of the  Company.  The  Company's  Restated  Bylaws
divide  the  Company's  Board  into three  classes  of  directors.  One class of
directors is elected each year with each class serving a three-year  term. These
and other  provisions  of the  Restated  Certificate  of  Incorporation  and the
Restated Bylaws,  as well as certain  provisions of Delaware law, could delay or
impede the  removal of  incumbent  directors  and could  make more  difficult  a
merger, tender offer or proxy contest involving the Company, even if such events
could be beneficial to the interest of the  stockholders.  Such provisions could
limit the price that certain investors might be willing to pay in the future for
the Common Stock.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

      The Company invests its excess cash and short-term investment in corporate
debt securities with high quality credit ratings and maturities of less than one
year. These investments are not held for trading or other speculative  purposes.
Changes in interest  rates affect the  investment  income earned on  investments
and,  therefore,  impact the Company's cash flows and results in operations.  At
June 30, 1999, the Company had outstanding a note payable for $1.9 million which
matures in 2001. The note has a fixed interest rate of 15.8%. Accordingly, while
changes in interest rates may affect the fair market value of the notes, they do
not impact the Company's cash flows or results of operations. The Company is not
exposed to risks for  changes  in foreign  currency  exchange  rates,  commodity
prices, or any other market rates.

PART II - OTHER INFORMATION

Item 2. Change in Securities and Use of Proceeds

      From the effective  date of Corsair's  initial  registration  statement on
Form S-1 on July 29, 1997  (Registration  No.  333-28519) to June 30, 1999,  the
approximate  use of the  net  offering  proceeds  were  $12.9  million  for  the
repayment  of  indebtedness,  $7.4  million for capital  expenditures,  and $4.3
million for acquisition  costs paid through June 30, 1998. The remaining balance
from  the net  proceeds  of $39.1  million  have  been  invested  in  short-term
investments,  pending future use. All payments were direct or indirect  payments
to third-parties.

Item 4. Submission of Matters to a Vote of Security Holders

I.  1999 Annual Meeting of Stockholders held on June 16, 1999

a.    The 1999 Annual  Meeting of  Stockholders  of Corsair,  Inc.  (the "Annual
      Meeting")  was held on June 16,  1999.  The holders of  12,646,673  of the
      18,120,367  shares of the Company's Common Stock  outstanding on April 30,
      1999, the record date for the Annual  Meeting  (approximately  70%),  were
      present at the Annual Meeting in person or by proxy.

b.    At the  Annual  Meeting,  the  two  individuals  listed  below  were  duly
      nominated and properly elected as Directors of the Company. Rachelle Chong
      and  Stephen M. Dow were  elected to hold  office for three years or until
      their successors are elected and have qualified.  The number of votes cast
      for and  withheld  with  respect to each  nominee for  office,  as well as
      broker non-votes are indicated below:

                                 For        Against/Withheld Broker Non-Votes
                            ---------------  --------------  -----------------
      Rachelle Chong          12,151,637        495,036             0
      Stephen M. Dow          12,150,373        496,300             0


c.    At the Annual  Meeting,  a proposal to ratify the appointment of KPMG Peat
      Marwick  LLP as the  company's  independent  auditors  for fiscal 1999 was
      approved.  The  number of votes  cast for,  against  and to abstain on the
      proposal, as well as broker non-votes, are indicated below:

         For              Against          Abstentions      Broker Non-Votes
   -----------------  ---------------  -------------------  --------------------
        12,619,324          24,429             2,920                0


d.    At the  Annual  Meeting,  a  proposal  to  amend  Corsair's  1997  Stock
      Incentive  Plan to increase  the  authorized  number of shares of common
      stock   available  for  issuance  under  such  plan  from  2,587,633  to
      3,337,633  and to  change  the term of the  options  granted  under  the
      Automatic  Option  Grant  Program  from 10  years to 5 years  with  such
      options to be fully vested upon grant was approved.  The number of votes
      cast for,  against  and to  abstain on the  proposal,  as well as broker
      non-votes, are indicated below:

         For              Against          Abstentions        Broker Non-Votes
   -------------------  ---------------  -------------------  ------------------
      8,589,840           908,305              2000            3,146,528

e.    At the Annual  Meeting,  a proposal to amend Corsair's 1997 Employee Stock
      Purchase Plan to increase the authorized  number of shares of Common Stock
      available  for  issuance  under  such plan from  266,667  to  666,667  was
      approved.  The  number of votes  cast for,  against  and to abstain on the
      proposal, as well as broker non-votes, are indicated below:

         For              Against          Abstentions         Broker Non-Votes
  -------------------  ---------------  -------------------  -------------------
      9,425,818            73,327             1,000            3,146,528



Item 6. Exhibits and Reports on Form 8-K.

      a.     Exhibits

            27.1  Financial Data Schedule

      b. Reports on Form 8-K.

            None



                                   SIGNATURES

Pursuant  to the  requirements  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.


                                    Corsair Communications, Inc.


Date: August 12, 1999         By: /s/ Martin J. Silver

                                Martin J. Silver
                                    Chief Financial Officer and Secretary
                                    (Duly Authorized Officer and Principal
                                     Financial and Accounting Officer)


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