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

                                   FORM 10-Q/A

           |X| QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                  For the quarterly period ended March 31, 2004

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

                        Commission File Number: 0-220-20

                                    CASTELLE
             (Exact name of Registrant as specified in its charter)

           California                                     77-0164056
(State or other jurisdiction of                (IRS Employer Identification No.)
 incorporation or organization)

           855 Jarvis Drive, Suite 100, Morgan Hill, California 95037
          (Address of principal executive offices, including zip code)

                                 (408) 852-8000
              (Registrant's telephone number, including area code)

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. Yes |X| No |_|

The  number  of  shares of Common  Stock  outstanding  as of April 30,  2004 was
3,561,391.

Indicate  by check mark  whether  the  registrant  is an  accelerated  filer (as
defined in Rule 12b-2 of the Exchange Act). Yes |_| No |X|




                                    CASTELLE
                                   FORM 10-Q/A
                                Table of Contents



                                                                                          PAGE
                                                                                          ----
                                                                                         
PART I - FINANCIAL INFORMATION...............................................................2

   ITEM 1.  CONDENSED CONSOLIDATED FINANCIAL STATEMENTS......................................2

            CONDENSED CONSOLIDATED BALANCE SHEETS............................................4

            Condensed Consolidated Statements of Operations..................................5

            Condensed Consolidated Statements of Cash Flows..................................6

            Notes To Condensed Consolidated Financial Statements.............................7

SPECIAL NOTE ON FORWARD-LOOKING STATEMENTS..................................................17

   ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
            RESULTS OF OPERATIONS...........................................................18

   ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK.......................31

   ITEM 4.  CONTROLS AND PROCEDURES.........................................................31

PART II - OTHER INFORMATION.................................................................33

   ITEM 5.  LEGAL PROCEEDINGS...............................................................33

   ITEM 6.  CHANGES IN SECURITIES AND USE OF PROCEEDS.......................................33

   ITEM 7.  DEFAULTS UPON SENIOR SECURITIES.................................................33

   ITEM 8.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.............................33

   ITEM 9.  OTHER INFORMATION...............................................................33

   ITEM 10. EXHIBITS AND REPORTS ON FORM 8-K................................................33

            SIGNATURES......................................................................35

            EXHIBIT 31.1  CERTIFICATION PURSUANT TO SECTION 302 OF THE
            SARBANES-OXLEY ACT OF 2002.....................................................E-1

            EXHIBIT 31.2  CERTIFICATION PURSUANT TO SECTION 302 OF THE
            SARBANES-OXLEY ACT OF 2002.....................................................E-2

            EXHIBIT 32.1  CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED
            PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002......................E-3

            EXHIBIT 32.2  CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED
            PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002......................E-4



                                       1


                         PART I - FINANCIAL INFORMATION

ITEM 1. CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

                                EXPLANATORY NOTE

In a report on Form 8-K filed on March 31, 2005,  Castelle  ("the  Company",  or
"we") indicated that it has completed a review of its accounting  practices with
respect to the historical classification of cost of service revenues, procedures
for  recognizing   revenue   associated  with  extended  support  contracts  and
procedures for establishing the accrual for  paid-time-off,  and determined that
its historical  financial  statements as of and for the years ended December 31,
2002 and 2003,  and the three  quarters ended March 31, June 30 and September 30
of 2004  contained  certain  errors in the  application  of  Generally  Accepted
Accounting Principles as described below:

      a)    Classification of cost of service revenues

            The Company has concluded that its historical classification of cost
            of service revenues did not conform to Generally Accepted Accounting
            Principles.  Historically,  such costs have been improperly included
            as a component  of sales and  marketing  expenses  on the  Company's
            consolidated   statements  of  earnings;   however  under  Generally
            Accepted  Accounting  Principles,  such  costs  are  required  to be
            classified as cost of service  revenues.  For the three months ended
            March 31, 2004 and 2003, the Company has  reclassified  $198,000 and
            $172,000,  respectively,  out of sales and  marketing  and  included
            these amounts  within cost of service  revenues in its statements of
            earnings.  The reclassification had no impact on reported sales, net
            income,  earnings per share,  or cash flows from  operations for the
            respective periods.  The  misclassification,  however, did result in
            cost of sales  being  understated,  and gross  profit and  operating
            expenses  being  overstated  by  equal  amounts.   The  Company  has
            concluded  that  the  internal  control  deficiency  that led to the
            errors in the historical  classification of cost of service revenues
            is a "material weakness" as defined by the Public Company Accounting
            Oversight Board's Auditing Standard No. 2.

            Effective  January 1, 2005, the Company  established a separate cost
            center to capture solely the cost of service revenues and such costs
            will be classified as a component of cost of sales.

            The  Company's  review  of such  costs was  prompted  in part by the
            receipt  in  November  2004 and  thereafter  of a series of  comment
            letters  issued  by  the  Division  of  Corporation  Finance  of the
            Securities and Exchange Commission to the Company.

      b)    Revenue recognition related to extended support contracts

            The Company has determined  that as a result of an internal  control
            deficiency,   service  revenues  attributable  to  extended  support
            contracts were overstated by $19,000 and $5,000 for the three months
            ended March 31, 2004 and 2003,  respectively.  These amounts  should
            have been deferred and recognized as service  revenues in subsequent
            periods.  Such errors were the result of  inadequate  procedures  in
            place to  correctly  recognize  sales  related to  extended  support
            contracts.  The revenue overstatements represent less than 1% of the
            Company's total sales for the respective periods. In connection with
            their audit of the Company's  consolidated  financial statements for
            the  year  ended  December  31,  2004,  the  Company's   independent
            registered  public  accounting firm,  Grant Thornton LLP,  concluded
            that the internal control deficiency that led to the


                                       2


            aforementioned  revenue  recognition errors is a "material weakness"
            as  defined  by the  Public  Company  Accounting  Oversight  Board's
            Auditing Standard No. 2.

            During the first quarter of 2005, the Company  enhanced its internal
            accounting  system to ensure  that  revenue is  recognized  over the
            actual contract term.

      c)    Accrual for paid-time-off

            The  Company  has also  identified  an  error  that  resulted  in an
            overstatement of its accrual for paid-time-off beginning in 2002 and
            continuing through 2004. This error resulted in the overstatement of
            expenses  by $1,000 in each of the  three-month  period  which ended
            March 31, 2004 and 2003.  During the first  quarter of fiscal  2005,
            the Company  corrected the internal  control  deficiency that led to
            such over-accrual.

The  outcome  of the  review  referred  to  above  necessitated  adjustments  to
Castelle's  previously filed condensed  consolidated  balance sheets as of March
31, 2004 and December 31, 2003, and statements of earnings for each of the three
months ended March 31, 2004 and 2003. These adjustments,  together,  reduced the
quarterly  reported  net income by $18,000 and $4,000,  respectively.  Basic net
income per share as restated decreased by $0.01 for three months ended March 31,
2003 as compared to the amounts previously reported,  but did not change for the
three months  ended March 31, 2004.  Diluted net income per share did not change
from the amounts previous reported for the three months ended March 31, 2004 and
2003.  As a result  of the  adjustments  referenced  to  above,  the  historical
financial statements and related financial  information  contained in Castelle's
Quarterly  Reports on Form 10-Q for the period  ended  March 31,  2004 should no
longer  be  relied  upon and are  superceded  by the  financial  statements  and
financial information in this Quarterly Report on Form 10-Q/A.

This amended Form 10-Q/A amends Items 1 and 2 of Part I of Castelle's  quarterly
report of Form 10-Q filed on May 11, 2004 to reflect these adjustments


                                       3


                                    CASTELLE
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                            (unaudited and restated)
                                 (in thousands)



                                                                   March 31, 2004   December 31, 2003
                                                                    (unaudited)
                                                                  ----------------  -----------------
                                                                                 
Assets:
   Current assets:
     Cash and cash equivalents                                       $    4,368        $    4,614
     Accounts receivable, net of allowance for doubtful accounts
        of $37 and $39, respectively                                      1,252               873
     Inventories                                                          1,217             1,177
     Prepaid expenses and other current assets                              243               134
     Deferred taxes                                                         282               380
                                                                     ----------        ----------
        Total current assets                                              7,362             7,178

   Property and equipment, net                                              329               376
   Other non-current assets                                                 103               103
   Deferred taxes, non-current                                              146               146
                                                                     ----------        ----------
        Total assets                                                 $    7,940        $    7,803
                                                                     ==========        ==========

Liabilities and Shareholders' Equity:
   Current liabilities:
     Long-term debt, current portion                                 $       14        $       16
     Accounts payable                                                       286               314
     Accrued liabilities                                                  1,589             1,737
     Deferred revenue                                                     1,022               955
                                                                     ----------        ----------
        Total current liabilities                                         2,911             3,022

     Long term debt, net of current portion                                  25                29
                                                                     ----------        ----------
        Total liabilities                                                 2,936             3,051
                                                                     ----------        ----------

   Shareholders' equity:
     Common stock, no par value:
        Authorized:  25,000 shares
        Issued and outstanding: 3,551 and 3,425, respectively            27,381            27,258
     Accumulated deficit:                                               (22,377)          (22,506)
                                                                     ----------        ----------
        Total shareholders' equity                                        5,004             4,752
                                                                     ----------        ----------
        Total liabilities and shareholders' equity                   $    7,940        $    7,803
                                                                     ==========        ==========


          See accompanying notes to consolidated financial statements.


                                       4


                                    CASTELLE
                 CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                    (in thousands, except per share amounts)
                            (unaudited and restated)

                                                       Three months ended
                                                  ------------------------------
                                                  March 31, 2004  March 31, 2003
                                                  --------------  --------------
Sales:
   Products                                          $  2,012        $  2,101
   Services                                               527             394
                                                     --------        --------
       Total net sales                                  2,539           2,495

Cost of sales:
   Products                                               639             697
   Services                                               198             172
                                                     --------        --------
       Total cost of sales                                837             869

                                                     --------        --------
    Gross profit                                        1,702           1,626
                                                     --------        --------

Operating expenses:
    Research and development                              414             355
    Sales and marketing                                   595             562
    General and administrative                            465             457
                                                     --------        --------
       Total operating expenses                         1,474           1,374
                                                     --------        --------
Income from operations:                                   228             252

    Interest income, net                                    3               4
    Other expense, net                                     (4)            (15)
                                                     --------        --------
Income before provision for income taxes                  227             241

    Provision for income taxes                             98               2
                                                     --------        --------
Net income                                           $    129        $    239
                                                     ========        ========

Earnings per share:
   Net income per common share - basic               $   0.04        $   0.07
   Net income per common share - diluted             $   0.03        $   0.06

   Shares used in per share calculation - basic         3,499           3,200
   Shares used in per share calculation - diluted       4,450           3,828

          See accompanying notes to consolidated financial statements.


                                       5


                                    CASTELLE
                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (in thousands)
                            (unaudited and restated)



                                                                    Three months ended
                                                              -------------------------------
                                                              March 31, 2004   March 31, 2003
                                                              --------------   --------------
                                                                            
Cash flows from operating activities:
   Net income                                                    $    129         $    239
   Adjustment to reconcile net income to net cash provided
    by/(used in) operating activities:
     Depreciation and amortization                                     52               57
     Provision for doubtful accounts and sales returns                (15)            (143)
     Provision for excess and obsolete inventory                     (143)              (5)
     Loss on disposal of fixed assets                                   1               --
     Changes in assets and liabilities:
      Accounts receivable                                            (364)             (73)
      Inventories                                                     103              152
      Deferred taxes                                                   98               --
      Prepaid expenses and other current assets                      (109)            (113)
      Accounts payable                                                (28)             (77)
      Accrued liabilities                                            (148)             (87)
      Deferred revenue                                                 67               69
                                                                 --------         --------
        Net cash provided by/(used in) operating activities          (357)              19
                                                                 --------         --------

Cash flows from investing activities:
   Acquisition of equipment                                            (6)             (90)
                                                                 --------         --------
           Net cash used in investing activities                       (6)             (90)
                                                                 --------         --------

Cash flows from financing activities:
   Repayment of long-term debt                                         (6)              (5)
   Proceeds from exercise of options                                  123               21
   Repurchase of  common stock                                         --              (49)
                                                                 --------         --------
        Net cash provided by/(used in) financing activities           117              (33)

Net decrease in cash and cash equivalents                            (246)            (104)

Cash and cash equivalents at beginning of period                    4,614            3,460
                                                                 --------         --------
Cash and cash equivalents at end of period                       $  4,368         $  3,356
                                                                 ========         ========


          See accompanying notes to consolidated financial statements.


                                       6


                                    CASTELLE
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (unaudited)

1     Basis of Presentation:

      The accompanying  unaudited condensed  consolidated  financial  statements
      include the accounts of Castelle and its  wholly-owned  subsidiary  in the
      United  Kingdom.   These  financial   statements  have  been  prepared  in
      accordance with  accounting  principles  generally  accepted in the United
      States of America.  All intercompany  balances and transactions  have been
      eliminated.  In our opinion,  all adjustments  (consisting  only of normal
      recurring adjustments) considered necessary for a fair presentation of our
      financial position,  results of operations and cash flows at the dates and
      for  the  periods  indicated  have  been  included.  Because  all  of  the
      disclosures  required by accounting  principles  generally accepted in the
      United  States of America are not included in the  accompanying  condensed
      consolidated  financial  statements and related notes, they should be read
      in  conjunction  with the audited  consolidated  financial  statements and
      related  notes  included in the  Company's  Forms 10-K for the years ended
      December  31,  2003 and  2004.  The  condensed  balance  sheet  data as of
      December 31, 2003 was derived from our audited  financial  statements  and
      does not include all of the disclosures required by accounting  principles
      generally  accepted  in the  United  States of  America.  The  results  of
      operations  for the periods  presented are not  necessarily  indicative of
      results that we expect for any future period, or for the entire year.

      The  preparation  of financial  statements  in conformity  with  Generally
      Accepted   Accounting   Principles  requires  us  to  make  estimates  and
      assumptions that affect the reported amounts of assets and liabilities and
      disclosure  of  contingent  assets  and  liabilities  at the  date  of the
      financial  statements,  and the reported  amounts of revenues and expenses
      during the  reporting  period.  Actual  results  could  differ  from those
      estimates.

      We believe that our existing cash balances and anticipated cash flows from
      operations will be sufficient to meet our anticipated capital requirements
      for  the  next  12  months.  If we  have a  need  for  additional  capital
      resources,   we  may  be  required  to  sell  additional  equity  or  debt
      securities,  secure additional lines of credit or obtain other third party
      financing.  The timing and amount of such capital  requirements  cannot be
      determined at this time and will depend on a number of factors,  including
      demand  for  our  existing  and  new  products,  if any,  and  changes  in
      technology in the networking industry. There can be no assurance that such
      additional  financing will be available on satisfactory terms when needed,
      if at all.  Failure to raise such  additional  financing,  if needed,  may
      result in us not being able to achieve our long-term business  objectives.
      To the  extent  that  additional  capital  is raised  through  the sale of
      additional  equity or convertible  debt  securities,  the issuance of such
      securities  would result in additional  dilution to our  shareholders.  In
      addition, because we are dependent on a small number of distributors for a
      significant  portion of the sales of our products,  the loss of any of our
      major distributors or their inability to satisfy their payment obligations
      to us could have a significant  adverse effect on our business,  operating
      results and  financial  condition.  In the first three  months of 2004 and
      2003,   Ingram  Micro  and  Tech  Data,  our  two  largest   distributors,
      collectively  represented  approximately  49% and  51% of our  net  sales,
      respectively.

      We do not currently have any material  long-term supply contracts with any
      of our manufacturing  subcontractors or component  suppliers.  We purchase
      finished  products and  components on a purchase  order basis.  We own all
      engineering, sourcing documentation, functional test equipment and tooling
      used in manufacturing our products and believe that we could shift product
      assembly to


                                       7


      alternate suppliers if necessary.  Certain key components of our products,
      including a modem chip set from Conexant,  microprocessors  from Motorola,
      integrated  circuits from Intel and Kendin,  are currently  available from
      single sources.  Other components of our products are currently  available
      from only a limited number of sources. In addition,  certain manufacturers
      have  announced  the   end-of-life  of  certain   standard   off-the-shelf
      components  which are being used by us in the  manufacture of our FaxPress
      Products.  However,  we have  purchased what we believe to be at least two
      years worth of supplies of these  end-of-life  components  in an effort to
      guarantee an  uninterrupted  supply of FaxPress  Products to our customers
      for the next two  years,  while  we  decide  whether  to  re-engineer  our
      Products with the manufacturers'  suggested  replacement parts, or develop
      new replacement products.

2     Restatement of Issued Financial Statements

      The  Company  has  completed  a review of its  accounting  practices  with
      respect to the  historical  classification  of cost of  service  revenues,
      procedures  for  recognizing  revenue  associated  with  extended  support
      contracts and procedures for establishing  the accrual for  paid-time-off,
      and determined that its previously  filed condensed  consolidated  balance
      sheets as of March 31, 2004 and  December  31,  2003,  and  statements  of
      earnings  for each of the  three  months  ended  March  31,  2004 and 2003
      contained  certain  errors  in  the  application  of  Generally   Accepted
      Accounting Principles as described below:

      a)    Classification of cost of service revenues The Company has concluded
            that its historical  classification  of cost of service revenues did
            not   conform   to   Generally   Accepted   Accounting   Principles.
            Historically,   such  costs  have  been  improperly  included  as  a
            component  of  sales  and   marketing   expenses  on  the  Company's
            consolidated   statements  of  earnings;   however  under  Generally
            Accepted  Accounting  Principles,  such  costs  are  required  to be
            classified as cost of service  revenues.  For the three months ended
            March 31, 2004 and 2003, the Company has  reclassified  $198,000 and
            $172,000,  respectively,  out of sales and  marketing  and  included
            these amounts  within cost of service  revenues in its statements of
            earnings.  The reclassification had no impact on reported sales, net
            income,  earnings per share,  or cash flows from  operations for the
            respective periods.  The  misclassification,  however, did result in
            cost of sales  being  understated,  and gross  profit and  operating
            expenses  being  overstated  by  equal  amounts.   The  Company  has
            concluded  that  the  internal  control  deficiency  that led to the
            errors in the historical  classification of cost of service revenues
            is a "material weakness" as defined by the Public Company Accounting
            Oversight Board's Auditing Standard No. 2.

            Effective  January 1, 2005, the Company  established a separate cost
            center to capture solely the cost of service revenues and such costs
            will be classified as a component of cost of sales.

      b)    Revenue recognition related to extended support contracts

            The Company has determined  that as a result of an internal  control
            deficiency,   service  revenues  attributable  to  extended  support
            contracts were overstated by $19,000 and $5,000 for the three months
            ended March 31, 2004 and 2003,  respectively.  These amounts  should
            have been deferred and recognized as service  revenues in subsequent
            periods.  Such errors were the result of  inadequate  procedures  in
            place to  correctly  recognize  sales  related to  extended  support
            contracts.  The revenue overstatements represent less than 1% of the
            Company's total sales for the respective periods. In connection with
            their audit of the Company's  consolidated  financial statements for
            the  year  ended  December  31,  2004,  the  Company's   independent
            registered  public  accounting firm,  Grant Thornton LLP,  concluded
            that the internal control  deficiency that led to the aforementioned
            revenue  recognition  errors is a "material  weakness" as defined by
            the Public Company  Accounting  Oversight  Board's Auditing Standard
            No. 2.


                                       8


            During the first quarter of 2005, the Company  enhanced its internal
            accounting  system to ensure  that  revenue is  recognized  over the
            actual contract term.

      c)    Accrual for paid-time-off

            The  Company  has also  identified  an  error  that  resulted  in an
            overstatement of its accrual for paid-time-off beginning in 2002 and
            continuing through 2004. This error resulted in the overstatement of
            expenses  by $1,000 in each of the  three-month  period  which ended
            March 31, 2004 and 2003.  During the first  quarter of fiscal  2005,
            the Company  corrected the internal  control  deficiency that led to
            such over-accrual.

            The  following  tables  summarize  the  impact  of  the  adjustments
            described above (amounts in thousands, except per share data):


                                       9


         Reconciliation of Condensed Consolidated Statements of Earnings



                                                                    For the three months ended
                                          ------------------------------------------------------------------------------
                                                     March 31, 2004                            March 31, 2003
                                                     --------------                            --------------
                                             As                                        As
                                          reported     Adjustments    Restated      reported     Adjustments    Restated
                                          --------     -----------    --------      --------     -----------    --------
                                                                                                
Sales:
   Products                                 $2,012            --        $2,012        $2,101            --        $2,101
   Services                                    546           (19)          527           399            (5)          394
                                          ------------------------------------      ------------------------------------
     Net sales                               2,558           (19)        2,539         2,500            (5)        2,495

Cost of sales:
   Products                                    639            --           639           697            --           697
   Services                                     --           198           198            --           172           172
                                          ------------------------------------      ------------------------------------

     Total cost of sales                       639           198           837           697           172           869

     Gross Profit                            1,919          (217)        1,702         1,803          (177)        1,626

Operating expenses:
   Research and development                    414            --           414           355            --           355
   Sales and marketing                         794          (199)          595           735          (173)          562
   General and administrative                  465            --           465           457            --           457
                                          ------------------------------------      ------------------------------------

     Total operating expenses                1,673          (199)        1,474         1,547          (173)        1,374

     Operating income                          246           (18)          228           256            (4)          252

Other income/(expense), net                     (1)           --            (1)          (11)           --           (11)
                                          ------------------------------------      ------------------------------------
Income before provision for/(benefit
from) income taxes                             245           (18)          227           245            (4)          241

Provision for (benefit from) income
taxes                                           98            --            98             2            --             2
                                          ------------------------------------      ------------------------------------
     Net income                                147           (18)          129          $243            (4)          239
                                          ====================================      ====================================

Net income per common share:
     Basic                                   $0.04            --         $0.04         $0.08        ($0.01)        $0.07
                                          ====================================      ====================================
     Diluted                                 $0.03            --         $0.03         $0.06            --         $0.06
                                          ====================================      ====================================

Shares used in per share calculation:
     Basic                                   3,499                       3,499         3,200                       3,200
                                          ====================================      ====================================
     Diluted                                 4,450                       4,450         3,828                       3,828
                                          ====================================      ====================================



                                       10


         Summary of Adjustment to Condensed Consolidated Balance Sheets



                                           As of March 31, 2004                     As of December 31, 2003
                                  ---------------------------------------   ---------------------------------------
                                  As reported   Adjustments   As restated   As reported   Adjustments   As restated
                                  -----------   -----------   -----------   -----------   -----------   -----------
                                                                                        
Current liabilities:
   Accrued liabilities               $1,612           $23        $1,589        $1,759           $22        $1,737
   Deferred revenue                     957           (65)        1,022           909           (46)          955
     Total current liabilities        2,869           (42)        2,911         2,998           (24)        3,022
     Total liabilities                2,894           (42)        2,936         3,027           (24)        3,051

Shareholders' equity:
   Accumulated deficit              (22,335)          (42)      (22,377)      (22,482)          (24)      (22,506)
   Total shareholders equity          5,046           (42)        5,004         4,776           (24)        4,752
   Total liabilities and
     shareholders' equity            $7,940            --        $7,940        $7,803            --        $7,803


3     Revenue Recognition:

      We recognize revenue based on the provisions of Staff Accounting  Bulletin
      No. 104 "Revenue  Recognition," AICPA Statement of Position No. 97-2 ("SOP
      97-2")   "Software   Revenue   Recognition,"   as  amended  by  SOP  98-9,
      "Modification of SOP 97-2, Software Revenue  Recognition,  with Respect to
      Certain  Transactions,"  and Statement of Financial  Accounting  Standards
      ("SFAS") No. 48 "Revenue Recognition When Right of Return Exists."

      The  Company  uses  the  residual  method  to  recognize  revenue  when an
      agreement  includes one or more elements to be delivered at a future date.
      If there is an  undelivered  element  under the  arrangement,  the Company
      defers  revenue based on  vendor-specific  objective  evidence of the fair
      value of the undelivered  element, as determined by the price charged when
      the element is sold separately.  If vendor-specific  objective evidence of
      fair value does not exist for all undelivered elements, the Company defers
      all revenue  until  sufficient  evidence  exists or all elements have been
      delivered.

      Product revenue is recognized when all of the following  criteria are met:
      persuasive evidence of an arrangement exists;  delivery has occurred;  the
      fee is fixed and determinable;  collection is probable; and returns can be
      reasonably estimated. If an acceptance period or other contingency exists,
      revenue is  recognized  upon  satisfaction  of the  contingency,  customer
      acceptance or  expiration of the  acceptance  period.  Shipment  generally
      occurs  and  title and risk of loss is  transferred  when the  product  is
      delivered to a common carrier.

      We enter into agreements with some of our distributors that permit limited
      stock rotation  rights.  These stock rotation rights allow the distributor
      to return  products  for credit but  require the  purchase  of  additional
      products of equal value.  Customers who purchase products directly from us
      also have  limited  return  rights,  which  expire  30 days  from  product
      shipment.  Revenues  subject to stock  rotation or other return rights are
      reduced by our estimates of anticipated exchanges and returns.

      Pursuant  to  our  agreements  with  distributors,  we  also  protect  our
      distributors'  exposure related to the impact of price reductions.  Future
      price  adjustments  are  estimated  and  accrued  at the time of sale as a
      reduction in revenue.


                                       11


      We  generally  provide our  distributors  the  opportunity  to earn volume
      incentive  rebates  based on  sales  volume  achieved  during  the  fiscal
      quarter.  These incentive  rebates are accrued in the quarter incurred and
      recorded as a reduction in revenue.

      We also provide co-op and market  development  funds to our  distributors.
      These  incentives  are  accrued  at the time  revenue  is  recognized  and
      recorded as a reduction in revenue.

      We offer a standard  trade-in  discount to all of our  end-user  customers
      under  which the  customer,  upon  trade-in  of any  previously  purchased
      product,  is entitled to a discount from our  published  price list on any
      product  included  in  our  current  product  offerings.  We  require  our
      customers  to  physically  return the  previously  purchased  products  to
      qualify for the trade-in discount. We account for the trade-in discount as
      a  reduction  of  revenue  at the time the  product is traded in and a new
      product is purchased.

      Payment terms to our distributors and customers are generally thirty days,
      cash in advance, or by credit card.

      We evaluate  product  sales  through  our  distribution  channels  and the
      related reserve requirement to establish an estimate for our sales returns
      reserve by reviewing detailed point-of-sales and on-hand inventory reports
      provided  to us  by  our  channel  partners.  Based  on a  combination  of
      historical return  experience,  the sales activities to end-user customers
      by our  channel  partners  and the  level  of  inventories  on hand at the
      channel  partners,  we  determine  our returns  reserve at the end of each
      financial period, and increases or reduce the reserve balance accordingly.

      We provide  standard  support to our  customers  for an initial  period of
      sixty days,  which  includes  advance swap of the  defective  hardware and
      software,  bug fixes, software upgrades and technical support. In addition
      to standard  support,  we also offer our  customers the option to purchase
      extended  support at the time of product  purchase or anytime  thereafter.
      Extended support covers hardware and software for a period of one year. We
      have established  vendor-specific  objective  evidence with respect to the
      fair value of the standard support contracts based on standalone sales and
      renewals of our one-year extended support contracts. The fair value of our
      sixty day support  contracts  included with product sales is determined by
      pro-rating the related one-year extended support  contracts.  We recognize
      revenue from  extended  support  contracts  ratably over the period of the
      contract based on contract service dates.

      We do  not  sell  software,  which  is  incorporated  into  our  hardware,
      separately,  other than for our  customers to purchase an upgrade to their
      existing products when we announce a major release of the software.

4     Net Income Per Share:

      Basic net  income  per share is  computed  by  dividing  net income by the
      weighted  average  number of common  shares  outstanding  for such period.
      Diluted net income per share  reflects  the  potential  dilution  from the
      exercise or  conversion  of other  securities  into common stock that were
      outstanding  during the  period.  Diluted  net  income per share  excludes
      shares  that are  potentially  dilutive if their  effect is  antidilutive.
      Dilutive  potential  shares consist of incremental  common shares issuable
      upon exercise of stock options.

      Basic and  diluted net income per share is  calculated  as follows for the
      first quarters of 2004 and 2003 (in thousands, except per share amounts):


                                       12




                                                                  Three Months Ended
                                                           March 31, 2004   March 31, 2003
                                                           --------------   --------------
                                                             (Restated)       (Restated)
                                                                         
        Basic:
           Weighted average common shares outstanding            3,499            3,200
                                                              ========         ========
           Net income                                         $    129         $    239
                                                              ========         ========
           Net income per common share - basic                $   0.04         $   0.07
                                                              ========         ========

        Diluted:
           Weighted average common shares outstanding            3,499            3,200
           Common equivalent shares from stock options             951              628
                                                              --------         --------
           Shares used in per share calculation - diluted        4,450            3,828
                                                              ========         ========
           Net income                                         $    129         $    239
                                                              ========         ========
           Net income per common share - diluted              $   0.03         $   0.06
                                                              ========         ========


      The  calculation of diluted shares  outstanding for the three months ended
      March 31,  2004  excludes  10,000  shares of common  stock  issuable  upon
      exercise of outstanding stock options, as their effect was antidilutive in
      the period.  The  calculation of diluted shares  outstanding for the three
      months  ended March 31, 2003  excludes  1,558,000  shares of common  stock
      issuable  upon exercise of  outstanding  stock options as their effect was
      antidilutive in the period.

5     Stock-Based Compensation

      We account for our  stock-based  compensation  plans  using the  intrinsic
      value method  prescribed  in Accounting  Principles  Board Opinion No. 25,
      "Accounting  for Stock Issued to Employees."  Compensation  cost for stock
      options,  if any, is measured by the excess of the quoted  market price of
      our stock at the date of grant  over the  amount an  employee  must pay to
      acquire   the  stock.   SFAS  No.   123,   "Accounting   for   Stock-Based
      Compensation,"  established accounting and disclosure requirements using a
      fair-value   based  method  of   accounting   for   stock-based   employee
      compensation plans.

      Had compensation  costs been determined  consistent with SFAS No. 123, our
      net income,  net of income  taxes,  would have been changed to the amounts
      indicated below (unaudited, in thousands, except per share data):



                                                              Three Months Ended
                                                              ------------------
                                                        March 31, 2004   March 31, 2003
                                                        --------------   --------------
                                                          (Restated)       (Restated)
                                                                      
         Net income - as reported                          $    129         $    239
         Fair value of stock-based compensation                 (96)             (42)
                                                           --------         --------
         Net income - pro forma                            $     33         $    197
                                                           ========         ========

         Net income per share - basic - as reported        $   0.04         $   0.08
         Net income per share - diluted - as reported      $   0.03         $   0.06
         Net income per share - basic - pro forma          $   0.01         $   0.06
         Net income per share - diluted - pro forma        $   0.01         $   0.05



                                       13


      We account for stock-based compensation arrangements with non-employees in
      accordance  with Emerging  Issues Task Force ("EITF")  Abstract No. 96-18,
      Accounting for Equity  Instruments That Are Issued to Other Than Employees
      for  Acquiring,  or  in  Conjunction  with  Selling,  Goods  or  Services.
      Accordingly,  unvested  options and  warrants  held by  non-employees  are
      subject  to  revaluation  at each  balance  sheet  date  based on the then
      current fair market value.

6     Inventories:

      Inventories  are stated at the lower of standard cost (which  approximates
      cost on a first-in,  first-out  basis) or market and net of provisions for
      excess  and  obsolete   inventory.   Inventory   details  are  as  follows
      (unaudited, in thousands):

                                              March 31, 2004   December 31, 2003
                                             ----------------  -----------------
           Raw material                          $    634          $    610
           Work in process                              9                --
           Finished goods                             574               567
                                                 --------          --------
                     Total inventory             $  1,217          $  1,177
                                                 ========          ========

7     Segment Information:

      We have determined that we operate in one segment.  Revenues by geographic
      area are  determined by the location of the customer and are summarized as
      follows (unaudited, in thousands):



                                                              Three Months Ended
                                                        -------------------------------
                                                        March 31, 2004   March 31, 2003
                                                        --------------   --------------
                                                          (Restated)       (Restated)
                                                                      
           United States                                   $  2,150         $  1,972
           Europe                                               128              175
           Pacific Rim                                          198              242
           Rest of Americas, excluding United States             63              106
                                                           --------         --------
                Total Revenue                              $  2,539         $  2,495
                                                           ========         ========


      Customers  that  individually  accounted for greater than 10% of net sales
      are as follows (unaudited, in thousands):

                             March 31, 2004                March 31, 2003
         Customer        Amount       Percentage       Amount       Percentage
      --------------  ------------  --------------  ------------  --------------
            A            $ 877            35%           $664            27%
            B            $ 375            15%           $605            24%

8     Comprehensive Income:

      Comprehensive  income is the change in equity from  transactions and other
      events and  circumstances  other than those resulting from  investments by
      owners and distributions to owners. There are no significant components of
      comprehensive  income  excluded  from net income,  therefore,  no separate
      statement of comprehensive income has been presented.


                                       14


9     Commitments and Contingencies:

      Contingencies

      From time to time,  we are involved in various  legal  proceedings  in the
      ordinary  course  of  business.  We  are  not  currently  involved  in any
      litigation, which, in our opinion, would have a material adverse effect on
      our  business,  operating  results,  cash  flows or  financial  condition;
      however,  there  can be no  assurance  that any such  proceeding  will not
      escalate or otherwise become material to our business in the future.

      Lease Commitments

      The following  represents  combined  aggregate  maturities  for all of our
      financing and  commitments  under operating and capital leases as of March
      31, 2004 (unaudited, in thousands):



                                                  Operating   Capital Lease          Total
                                                     Leases     Obligations    Commitments
                                                  ----------------------------------------
                                                                           
          Nine months ending December 31, 2004       $  202          $   13         $  215
          Year ending December 31, 2005                 263              18            281
          Year ending December 31, 2006                  --              15             15
                                                  ----------------------------------------
                         Total Commitments           $  465          $   46         $  511
                                                  ========================================


      The lease on our headquarters  facility has a term of 5 years, expiring in
      December 2005 with one conditional  three-year  renewal  option,  which if
      exercised  would extend the lease to December 2008 commencing with rent at
      ninety-five percent of fair market value.

      We lease  certain of our  equipment  under  various  operating and capital
      leases that expire at various  dates through  2006.  The lease  agreements
      frequently include renewal,  escalation  clauses and purchase  provisions,
      and require us to pay taxes,  insurance and maintenance costs. As of March
      31, 2004, we had $39,000  outstanding  under loan and security  agreements
      which are subject to interest rates of 12.5% to 12.8%.

      We have a $3.0  million  collateralized  revolving  line of credit  with a
      bank,  which  expires in March 2005,  pursuant to which we may borrow 100%
      against  pledges of cash at the bank's prime rate.  Borrowings  under this
      line of credit agreement are  collateralized  by all of our assets.  As of
      March 31,  2004,  we have not drawn down on the line of credit and were in
      compliance with the terms of the agreement.

      Product Warranties and Guarantor Arrangements

      We offer  warranties  on certain  products and record a liability  for the
      estimated  future costs  associated with warranty  claims,  which is based
      upon historical  experience and our estimate of the level of future costs.
      Warranty  costs are  reflected in the Statement of Operations as a Cost of
      Sales. A  reconciliation  of the changes in our warranty  liability during
      the three months ended March 31, 2004, is as follows (in thousands):

            Warranty accrual as of December 31, 2003                     $   24
            Accruals for warranties issued during the quarter                --
            Settlements made in kind during the quarter                      (1)
                                                                         ------
            Warranty accrual as of March 31, 2004                        $   23
                                                                         ======

      As  permitted  under  California  law,  and  under the  provisions  of our
      articles of incorporation  and by-laws,  we are obligated to indemnify our
      officers and directors for certain events or occurrences while the officer
      or director is, or was, serving at our request in such capacity.  The term
      of the


                                       15


      indemnification  period is for the officer's or director's  lifetime.  The
      maximum  potential amount of future payments the Company could be required
      to make under these indemnification  agreements is unlimited;  however, we
      have a director and officer  insurance policy that limits our exposure and
      enables us to recover a portion of any future amounts paid. As a result of
      our insurance  policy  coverage,  we believe the  estimated  fair value of
      these indemnification agreements is minimal.

      We enter into standard  indemnification  agreements  with our customers in
      the  ordinary  course  of  business.  Pursuant  to  these  agreements,  we
      indemnify, hold harmless, and agree to reimburse the indemnified party for
      losses  suffered or  incurred  by the  indemnified  party,  generally  our
      business partners or customers, in connection with any U.S. patent, or any
      copyright or other intellectual  property  infringement claim by any third
      party with  respect  to our  products.  The term of these  indemnification
      agreements is generally  perpetual  following  execution of the agreement.
      The maximum  potential  amount of future  payments we could be required to
      make under these indemnification agreements is unlimited; however, we have
      never incurred claims or costs to defend lawsuits or settle claims related
      to these indemnification agreements.

10    Stock Buyback:

      In the fourth quarter of 2002, our Board of Directors  authorized us, from
      time to time, to repurchase at market  prices,  up to $2.25 million of our
      common stock for cash in open market,  negotiated  or block  transactions.
      The timing of such  transactions will depend on market  conditions,  other
      corporate  strategies and will be at the discretion of our management.  No
      time limit was set for the completion of this program.  At the time of the
      approval  by the Board of  Directors,  we had  approximately  4.8  million
      shares of common stock outstanding.  During the fourth quarter of 2002, we
      repurchased  from  open  market  and  negotiated  transactions  a total of
      approximately  1.62 million shares for approximately  $1.8 million,  at an
      average per share  price of $1.10.  During the first  quarter of 2003,  we
      repurchased  from open market  transactions  a total of 46,500  shares for
      $49,000,  at an average per share price of $1.04.  We have not repurchased
      any shares  since the first  quarter of 2003,  but intend to  continue  to
      execute our buyback  program as we determine  necessary.  The  approximate
      dollar  value of  shares  that may yet be  repurchased  under the plan was
      $419,640 as of March 31, 2004.

11    Recent Accounting Pronouncements:

      In December 2003, the Financial Accounting Standards Board ("FASB") issued
      a revised FASB interpretation No. 46, "Consolidation for Variable Interest
      Entities, an interpretation of ARB No. 51" ("FIN 46R"). The FASB published
      the revision to clarify and amend some of the original  provisions  of FIN
      46, which was issued in January 2003, and to exempt certain  entities from
      its  requirements.  A Variable Interest Entity ("VIE") refers to an entity
      subject   to   consolidation   according   to   the   provisions   of  the
      Interpretation.  FIN 46R applies to entities  whose equity  investment  at
      risk is insufficient to finance that entity's activities without receiving
      additional   subordinated  financial  support  provided  by  any  parties,
      including  equity holders,  or where the equity  investors (if any) do not
      have a controlling financial interest.  FIN 46R provides that if an entity
      is the primary beneficiary of a VIE, the assets, liabilities,  and results
      of operations of the VIE should be consolidated in the entity's  financial
      statements.   In  addition,   FIN  46R  requires  that  both  the  primary
      beneficiary and all other enterprises with a significant variable interest
      in a VIE provide  additional  disclosures.  The  provisions of FIN 46R are
      effective for the Company's fiscal 2004 first quarter. The adoption of FIN
      46R did not have a material impact on the Company's  financial position or
      results of operations.


                                       16


                   SPECIAL NOTE ON FORWARD-LOOKING STATEMENTS

This  document  contains  forward-looking  statements  that  involve  risks  and
uncertainties.  Our  operating  results may vary  significantly  from quarter to
quarter  due to a variety  of  factors,  including  changes in our  product  and
customer  mix,  constraints  in our  manufacturing  and  assembling  operations,
shortages or increases in the prices of raw materials and components, changes in
pricing  policy  by us or our  competitors,  a  slowdown  in the  growth  of the
networking market, seasonality,  timing of expenditures, and economic conditions
in the United States, Europe and Asia. Words such as "believes,"  "anticipates,"
"expects,"   "intends"  and  similar   expressions   are  intended  to  identify
forward-looking  statements, but are not the exclusive means of identifying such
statements.  Unless the  context  otherwise  requires,  references  in this Form
10-Q/A to "we," "us," or the "Company" refer to Castelle.  Readers are cautioned
that the forward-looking statements reflect management's analysis only as of the
date hereof,  and we assume no  obligation  to update these  statements.  Actual
events or results  may  differ  materially  from the  results  discussed  in the
forward-looking statements.  Factors that might cause such a difference include,
but are not limited to the risks and uncertainties  discussed herein, as well as
other risks set forth under the caption "Risk  Factors"  below and in our Annual
Reports on Form 10-K for the years ended December 31, 2003 and 2004.


                                       17


ITEM 2. MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS

This Management's  Discussion and Analysis of Financial Condition and Results of
Operations  contains  forward-looking  statements that are subject to many risks
and uncertainties  that could cause actual results to differ  significantly from
expectations.  For more information on forward-looking statements,  refer to the
"Special  Note  on  Forward-Looking  Statements"  prior  to  this  section.  The
following  discussion should be read in conjunction with the unaudited Condensed
Consolidated  Financial  Statements and the Notes thereto  included in Item 1 of
this Quarterly Report on Form 10-Q/A and our Annual Reports on Form 10-K for the
years ended December 31, 2003 and 2004.

We have  completed  a review of our  accounting  practices  with  respect to the
historical   classification  of  cost  of  service   revenues,   procedures  for
recognizing  revenue  associated with extended support  contracts and procedures
for  establishing  the  accrual  for  paid-time-off,  and  determined  that  our
historical  financial  statements contained certain errors in the application of
Generally Accepted  Accounting  Principles.  Consequently,  we have restated our
consolidated  financial  statements  as of March 31, 2004 and December 31, 2003,
and for the three months ended March 31, 2004 and 2003 in this Quarterly  Report
on Form 10-Q/A to correct for these errors.  This  Management's  Discussion  and
Analysis of Financial  Condition and Results of Operations reflects the restated
amounts. Note 2 to the consolidated financial statements discloses the impact of
the  adjustments  arising  from the  accounting  errors  described  above on the
statements of earnings and balance sheets for the restated quarterly periods.

Critical Accounting Policies

Castelle's   financial   statements  and  accompanying  notes  are  prepared  in
accordance with Generally Accepted Accounting Principles in the United States of
America.  Preparing  financial  statements requires management to make estimates
and assumptions that affect the reported amounts of assets,  liabilities,  sales
and expenses.  These  estimates  and  assumptions  are affected by  management's
application of accounting policies.  Critical accounting policies for us include
revenue  recognition;  distributor  programs and incentives;  warranty;  credit,
collection  and  allowances  for  doubtful  accounts;  inventories  and  related
allowance  for  obsolete  and  excess  inventory;  and income  taxes,  which are
discussed in more detail under the caption "Critical Accounting Policies" in our
2003 and 2004 Annual Reports on Form 10-K.


                                       18


      Consolidated Statements of Operations - As a Percentage of Net Sales

                                                      THREE MONTHS ENDED
                                               ---------------------------------
                                               March 31, 2004     March 31, 2003
                                               --------------     --------------
                                                 (Restated)         (Restated)
Sales:
  Products                                              79%                84%
  Services                                              21%                16%
                                                  --------           --------
   Net sales                                           100%               100%

Cost of sales:
  Products                                              25%                28%
  Services                                               8%                 7%
                                                  --------           --------
   Cost of sales                                        33%                35%

                                                  --------           --------
       Gross profit                                     67%                65%
                                                  --------           --------

Operating expenses:
    Research and development                            16%                14%
    Sales and marketing                                 24%                23%
    General and administrative                          18%                18%
                                                  --------           --------
       Total operating expense                          58%                55%

Income from operations                                   9%                10%
    Interest income, net                                 *                  *
    Other income/(expense), net                          *                  *
                                                  --------           --------
Income before provision for income taxes                 9%                10%

    Provision for income taxes                           4%                 *
                                                  --------           --------
Net income                                               5%                10%
                                                  ========           ========

*     Less than 1%

Results of Operations

      Net Sales

                                                       Three months ended
                                                --------------------------------
                                                March 31, 2004    March 31, 2003
                                                --------------    --------------
                                                  (Restated)        (Restated)
          Sales:
          Products                                 $  2,012          $  2,101
          Services                                      527               394
                                                   --------          --------
                Total net sales                    $  2,539          $  2,495
                                                   ========          ========


                                       19


                                                       Three Months Ended
                                                 -------------------------------
                                                 March 31, 2004   March 31, 2003
                                                 --------------   --------------
                                                   (Restated)       (Restated)
      Sales:
      United States                                 $  2,150         $  1,972
      Europe                                             128              175
      Pacific Rim                                        198              242
      Rest of Americas, excluding United States           63              106
                                                    --------         --------
            Total sales                             $  2,539         $  2,495
                                                    ========         ========

      Net sales were $2.5  million in both  quarters of 2004 and 2003.  Products
sales of $2.0 million in the first  quarter of 2004 were lower than sales in the
same  period in 2003 by $89,000  mainly due to lower sales of our  FaxPress  fax
server products to our international  partners.  This was offset by higher sales
of services domestically of $133,000 in the first quarter of 2004 as compared to
the same period in 2003  primarily due to an increase in our installed  customer
base.

      Domestic sales in the first quarter of 2004 were $2.2 million, as compared
to $2.0  million  for  the  same  period  in  2003,  representing  85% and  79%,
respectively,  of total net sales. The increase in sales was mostly attributable
to the higher service revenues.

      International  sales  (excluding  sales to the rest of the Americas)  were
$326,000,  or 13% of total net sales,  and $417,000,  or 17% of total net sales,
for the first quarter of 2004 and 2003,  respectively.  The decline in sales was
mostly due to lower sales of our fax server products.

      Sales to the rest of the Americas in the first quarter of 2003,  excluding
the United States, were $63,000 as compared to $106,000 in the year-ago quarter,
representing  2% and 4% of total net sales,  respectively.  The decline in sales
was mostly due to lower sales of our fax server products.

Cost of Sales; Gross Profit

                                                      Three months ended
                                               ---------------------------------
                                               March 31, 2004     March 31, 2003
                                               --------------     --------------
                                                 (Restated)         (Restated)
Cost of sales:
   Products                                       $    639           $    697
   Services                                            198                172
                                                  --------           --------
       Total cost of sales                             837                869

   Gross profit                                   $  1,702           $  1,626
   Gross profit %                                       67%                65%

      Gross profit was $1.7 million or 67% of net sales for the first quarter of
2004,  as  compared  to $1.6  million or 65% of net sales for the same period in
2003.  The increase in gross profit was mostly  attributable  to higher  service
revenues  in the first  quarter  of 2004,  while cost of  service  revenue  only
increased moderately in the 2004 period.


                                       20


Research & Development

      Research and product  development  expenses were  $414,000,  or 16% of net
sales for the first  quarter of 2004,  as  compared to  $355,000,  or 14% of net
sales for the same  period in 2003.  The  increase  of  $59,000 is due to higher
compensation expenses relating to headcount additions.

Sales & Marketing

      Sales and marketing  expenses were  $595,000,  or 24% of net sales for the
first quarter of 2004, as compared to $562,000, or 23% of net sales in 2003. The
increase of $33,000 was primarily due to an increase in compensation expenses of
$72,000 due to increased  headcount and higher  consulting  expenses of $30,000,
offset in part by lower advertising and promotional expenses of $62,000.

General & Administrative

      General and administrative  expenses were $465,000 in the first quarter of
2004,  as  compared  to  $457,000  in the first  quarter  of 2003.  General  and
administrative  expenses  represented 18% of net sales in both the 2004 and 2003
periods.

Provision for Income Tax

      Prior to the  fourth  quarter  of 2003,  we had not  reported  significant
income tax expenses  because we had utilized  available net operating loss (NOL)
and tax credit  carry-forwards.  These NOLs were fully  reserved  by a valuation
allowance due to uncertainty  surrounding  the likelihood of their  realization.
Due to our continued  profitability  and a determination  that it is more likely
than not that  certain  future tax benefits  will be realized,  a portion of the
deferred tax assets were  recognized  in the fourth  quarter of 2003.  Beginning
with the first  quarter of 2004,  for  purposes of financial  reporting,  we are
providing for income taxes at an effective tax rate of 40%. As a result, $98,000
of income tax expense had been provided in the first quarter of 2004 as compared
to $2,000 in the first quarter of 2003. However, for income tax purposes, we had
$12.9 million of NOLs available to offset future taxable  income,  and we do not
expect to utilize  significant  amounts of cash for  income tax  payments  until
these NOLs have been utilized.

Liquidity and Capital Resources

      As of March 31, 2004 we had  approximately  $4.4  million of cash and cash
equivalents, a decrease of $246,000 from December 31, 2003. The decrease in cash
and  cash  equivalents  is  mostly  attributable  to  an  increase  in  accounts
receivable of $379,000 due to slower collections from customers,  offset in part
by $123,000 in proceeds from exercise of stock options.

      In the fourth quarter of 2002, our Board of Directors  authorized us, from
time to time, to repurchase at market prices,  up to $2.25 million shares of our
common  stock for cash in open market,  negotiated  or block  transactions.  The
timing of these  transactions has depended and will depend on market conditions,
other  corporate  strategies  and has been and will be at the  discretion of our
management.  No time limit was set for the completion of this program. Since the
beginning of this program,  we have  repurchased from open market and negotiated
transactions a total of 1.67 million shares for $1.8 million,  at an average per
share price of $1.10. We have not repurchased any shares since the first quarter
of 2003,  but intend to  continue  to  execute  our  buyback  program as we deem
appropriate.


                                       21


      We lease our corporate headquarters in Morgan Hill, California.  The lease
on the Morgan Hill facility has a term of five years, expiring in December 2005,
with one conditional  three-year renewal option, which if exercised would extend
the lease to December 2008  commencing with rent at 95% of fair market value. As
of March 31, 2004, future minimum payments under the lease were $465,000.

      In December 2000, as a source of capital asset financing,  we entered into
a loan and security  agreement with a finance  company for an amount of $75,000.
This loan bears interest at 12.8% and is repayable by December 2006. As of March
31, 2004, the aggregate value of future minimum payments was $46,000.

      In April 2001, as a source of capital asset  financing,  we entered into a
loan and  security  agreement  with a finance  company for an amount of $25,000.
This loan bears  interest at 12.5% and is repayable  by April 2004.  As of March
31, 2004, there was an inconsequential amount remaining.

      The  following  represents  combined  aggregate  maturities  for  all  our
financing and commitments as of March 31, 2004:



                                                         Payments Due by Period
                                        -----------------------------------------------------------
Contractual Obligations                  Total      1 Year    2 - 3 Years  4 - 5 Years  More than 5
                                                                                           Years
                                        -----------------------------------------------------------
                                                                                
Capital (Finance) Lease Obligations     $   46      $   13       $   33           --           --
Operating Lease Obligations             $  465      $  202       $  263           --           --
                                        ------      ------       ------       ------       ------
Total contractual cash obligations      $  511      $  215       $  296           --           --
                                        ======      ======       ======       ======       ======


      We have a $3.0  million  collateralized  revolving  line of credit  with a
bank, which expires in March 2005,  pursuant to which we may borrow 100% against
pledges of cash at the bank's prime rate.  Borrowings  under this line of credit
agreement are collateralized by all of our assets. As of March 31, 2004, we have
not drawn  down on the line of credit and were in  compliance  with the terms of
the agreement.

      We believe that our existing cash balances and anticipated cash flows from
operations will be sufficient to meet our anticipated  capital  requirements for
the next 12 months. If we have a need for additional capital  resources,  we may
be required to sell  additional  equity or debt  securities,  secure  additional
lines of credit or obtain other third party financing.  The timing and amount of
such capital requirements cannot be determined at this time and will depend on a
number of factors,  including demand for our existing and new products,  if any,
and changes in technology in the networking industry.  There can be no assurance
that such  additional  financing  will be available on  satisfactory  terms when
needed, if at all. Failure to raise such additional  financing,  if needed,  may
result in our inability to achieve our  long-term  business  objectives.  To the
extent that additional  capital is raised through the sale of additional  equity
or convertible debt securities,  the issuance of such securities would result in
additional dilution to our shareholders.

      In addition,  because we are  dependent on a small number of  distributors
for a significant  portion of the sales of our products,  the loss of any of our
major distributors or their inability to satisfy their payment obligations to us
could have a significant  adverse effect on our business,  operating results and
financial condition.


                                       22


      We  believe  that,  for the  periods  presented,  inflation  has not had a
material effect on our operations.

Recent Accounting Pronouncements:

      In December  2003, the FASB issued a revised FASB  interpretation  No. 46,
"Consolidation for Variable Interest Entities,  an interpretation of ARB No. 51"
("FIN 46R").  The FASB  published  the revision to clarify and amend some of the
original  provisions of FIN 46, which was issued in January 2003,  and to exempt
certain  entities from its  requirements.  A Variable  Interest  Entity  ("VIE")
refers to an entity subject to consolidation  according to the provisions of the
Interpretation.  FIN 46R applies to entities whose equity  investment at risk is
insufficient to finance that entity's  activities  without receiving  additional
subordinated  financial  support  provided  by  any  parties,  including  equity
holders,  or where  the  equity  investors  (if  any) do not have a  controlling
financial  interest.  FIN  46R  provides  that  if  an  entity  is  the  primary
beneficiary of a VIE, the assets, liabilities,  and results of operations of the
VIE should be consolidated in the entity's  financial  statements.  In addition,
FIN 46R requires  that both the primary  beneficiary  and all other  enterprises
with a significant  variable interest in a VIE provide  additional  disclosures.
The provisions of FIN 46R are effective for our fiscal 2004 first  quarter.  The
adoption of FIN 46R did not have a material impact on our financial  position or
results of operations.

                                  RISK FACTORS

      Shareholders or investors considering the purchase of shares of our common
stock should carefully consider the following risk factors, in addition to other
information in this Quarterly Report on Form 10-Q/A and in our Annual Reports on
Form 10-K for the years ended December 31, 2003 and 2004.  Additional  risks and
uncertainties  not presently  known to us or that we currently  deem  immaterial
also may impair our business operations

Our revenue and operating  results have fluctuated in the past and are likely to
fluctuate significantly in the future, particularly on a quarterly basis.

      Our operating results may vary  significantly  from quarter to quarter due
to many  factors,  some of which are  outside  our  control.  For  example,  the
following conditions could all affect our results:

      o     changes in our product sales and customer mix;

      o     constraints in our manufacturing and assembling operations;

      o     shortages  or  increases  in  the  prices  of  raw   materials   and
            components;

      o     changes in pricing policy by us or our competitors;

      o     a slowdown in the growth of the networking market;


      o     seasonality;

      o     timing of expenditures; and

      o     economic conditions in the United States, Europe and Asia.

      Our sales often reflect  orders  shipped in the same quarter in which they
are received.  In addition,  significant portions of our expenses are relatively
fixed  in  nature,  and  planned  expenditures  are  based  primarily  on  sales
forecasts.  Therefore,  if we inaccurately forecast demand for our products, the
impact on net  income  may be  magnified  by our  inability  to adjust  spending
quickly enough to compensate for the net sales shortfall.

      Other factors  contributing  to  fluctuations  in our quarterly  operating
results include:

      o     changes in the demand for our products;


                                       23


      o     customer  order  deferrals  in  anticipation  of new versions of our
            products;

      o     the  introduction of new products and product  enhancements by us or
            our competitors;

      o     the  effects  of  filling  the   distribution   channels   following
            introductions of new products and product enhancements;

      o     potential  delays in the  availability  of announced or  anticipated
            products;

      o     the mix of product  and  revenue  derived  from the sale of extended
            warranty contracts;

      o     the commencement or conclusion of significant development contracts;

      o     changes in foreign currency exchange rates; and

      o     the timing of significant marketing and sales promotions.

      Based on the foregoing,  we believe that quarterly  operating  results are
likely to vary significantly in the future and that period-to-period comparisons
of our results of operations  are not  necessarily  meaningful and should not be
viewed as indications of future performance.

We have a history of losses and a large accumulated deficit.

      We have  experienced  significant  operating  losses  and, as of March 31,
2004, had an accumulated deficit of $22.4 million. Our development and marketing
of current and new products will continue to require  substantial  expenditures.
We incurred  $564,000 of losses in 2001 attributable to a slowdown in demand for
our products due in part to industry-wide adverse economic factors. We have been
profitable since the third quarter of 2001, with total net income of $635,000 in
2002 and $1.6 million in 2003,  and $129,000 for the first three months in 2004.
There  can be no  assurance  that  growth  in net  sales  will  be  achieved  or
profitability sustained in future years.

Recent FASB Exposure Draft on Share-Based Payments may have a significant effect
on our Results of Operations, if adopted.

      During  March  2004,  the FASB issued a proposed  Statement,  "Share-Based
Payment,  and  amendment  of FASB  Statements  No.  123 and  95".  The  proposed
Statement addresses the accounting for share-based payment transactions in which
a company receives employee  services in exchange for equity  instruments of the
company that are based on the fair values of the company's equity instruments or
that may be settled by the  issuance of such equity  instruments.  The  proposed
statement  eliminates  the  treatment  for  share-based  transactions  using APB
Opinion No. 25,  "Accounting for Stock Issued to Employees," and generally would
require that such transactions be accounted for using a fair-value-based  method
and  recognized  as expenses in our statement of income.  The proposed  standard
would require the modified  prospective method be used, which would require that
the fair value of new awards  granted from the beginning of the year of adoption
plus unvested  awards at the date of adoption be expensed over the vesting term.
In addition,  the proposed statement  encourages companies to use the "binomial"
approach to value stock options, as opposed to the Black-Scholes  option pricing
model that is currently being used for the fair value of our options.

      The effective  date the proposed  standard is  recommending  is for fiscal
years  beginning  after  December  15, 2004.  Should the  proposed  statement be
finalized,  it will have a significant  impact on our consolidated  statement of
operations as we will be required to expense the fair value of our stock options
rather than  disclosing  the impact on our  consolidated  net income  within our
footnotes  (See  Note 4 of the  notes to the  condensed  consolidated  financial
statements).


                                       24


Substantially all of our revenue comes from the sale of fax server products, and
a decline  in demand  for those  products  would  harm our  business,  operating
results and financial condition.

      We derive  substantially all of our revenue from the sale of fax and print
server products,  with fax server products  accounting for 97% of total sales in
2003 and  almost  all sales in the first  quarter  of 2004.  We expect  that our
current  products  will  continue  to account  for most of our sales in the near
future.  A  decline  in  demand  for our fax  server  products  as a  result  of
competition,  technological change, shortages of components or other factors, or
a delay in the development  and market  acceptance of new features and products,
would have a material  adverse  effect on our  business,  operating  results and
financial condition.

We  sell  our  products  through  a  limited  number  of  distributors,  and any
deterioration  in our  relationship  with  those  distributors  would  harm  our
business, operating results and financial condition.

      We  sell  our  products   primarily   through  a  two-tier   domestic  and
international  distribution network. Our distributors sell our products to VARs,
e-commerce  vendors and other resellers.  The distribution of personal computers
and  networking  products  has been  characterized  by rapid  change,  including
consolidations  due  to the  financial  difficulties  of  distributors  and  the
emergence  of  alternative   distribution  channels.  An  increasing  number  of
companies are competing for access to these channels. Our distributors typically
represent  other  products  that are  complementary  to, or  compete  with,  our
products.  Our distributors are not contractually  committed to future purchases
of our products and could discontinue  carrying our products at any time for any
reason. In addition,  because we are dependent on a small number of distributors
for a significant  portion of the sales of our products,  the loss of any of our
major distributors or their inability to satisfy their payment obligations to us
could have a significant  adverse effect on our business,  operating results and
financial  condition.  We have a  stock  rotation  policy  with  certain  of our
distributors that allows them to return marketable  inventory against offsetting
orders.  If we  reduce  our  prices,  we  credit  certain  distributors  for the
difference  between the purchase price of products  remaining in their inventory
and our reduced price for these products.  In addition,  inventory levels of our
products held by distributors could become excessive due to industry  conditions
or the  actions of  competitors,  resulting  in product  returns  and  inventory
write-downs.

The market for our products is affected by rapidly changing technology and if we
fail to  predict  and  respond  to  customers'  changing  needs,  our  business,
operating results and financial condition may suffer.

      The market for our  products is affected  by rapidly  changing  networking
technology,   evolving  industry  standards  and  the  Internet  and  other  new
communication technologies.  We believe that our future success will depend upon
our  ability  to  enhance  our  existing  products  and  to  identify,  develop,
manufacture and introduce new products that:

      o     conform to or support emerging network telecommunications standards;

      o     are  compatible  with a growing  array of  computer  and  peripheral
            devices;

      o     support  popular   computer  and  network   operating   systems  and
            applications;

      o     meet a wide range of evolving user needs; and

      o     achieve market acceptance.

      There can be no assurance that we will be successful in these efforts.

      We have incurred,  and expect to continue to incur,  substantial  expenses
associated with the introduction and promotion of new products.  There can be no
assurance that the expenses  incurred will not exceed  research and  development
cost estimates or that new products will achieve market  acceptance and generate
sales sufficient to offset  development  costs. In order to develop new products
successfully,  we are  dependent  upon timely  access to  information  about new
technological developments and


                                       25


standards.  There can be no  assurance  that we will have such access or will be
able  to  develop  new  products   successfully   and  respond   effectively  to
technological change or new product announcements by others.

      Complex  products  such as those  offered by us may contain  undetected or
unresolved hardware defects or software errors when they are first introduced or
as new versions are  released.  Changes in our or our  suppliers'  manufacturing
processes or the inadvertent use of defective  components could adversely affect
our ability to achieve acceptable  manufacturing yields and product reliability.
We have in the past discovered  hardware  defects and software errors in certain
of our new products and enhancements  after their  introduction.  Replacement of
discontinued  components  used in our products could lead to further defects and
errors.  There can be no assurance that despite testing by us and by third-party
test  sites,  errors and  defects  will not be found in future  releases  of our
products,  which would result in adverse product  reviews and negatively  affect
market acceptance of these products.

      The  introduction  of new or enhanced  products  requires us to manage the
transition from the older products to the new or enhanced  products or versions,
both internally and for customers.  We must manage new product  introductions so
as to minimize disruption in customer ordering patterns,  avoid excessive levels
of older product  inventories and ensure that adequate  supplies of new products
can be delivered to meet customer demands. We have from time to time experienced
delays in the shipment of new products.  There can be no assurance  that we will
successfully manage future product transitions.

Our success  depends upon the  continued  contributions  of our key  management,
marketing, product development and operational personnel.

      Our success will depend, to a large extent, upon our ability to retain and
continue to attract highly skilled personnel in management,  marketing,  product
development  and  operations.  Competition  for  employees  in the  computer and
electronics industries is intense, and there can be no assurance that we will be
able to attract and retain  enough  qualified  employees.  Volatility or lack of
positive performance in our stock price may also adversely affect our ability to
retain and  continue to attract key  employees,  many of whom have been  granted
stock  options.  Our inability to retain and attract key employees  could have a
material adverse effect on our product development,  business, operating results
and financial condition.  We do not carry key person life insurance with respect
to any of our personnel.

The  markets  for our  products  are  highly  competitive  and may  become  more
competitive in the future.

      The network enhancement  products and computer software markets are highly
competitive,  and we believe that competition will intensify in the future.  The
competition  is  characterized  by rapid change and  improvements  in technology
along with  constant  pressure to reduce the prices of  products.  We  currently
compete principally in the market for network fax servers, network print servers
and fax-on-demand software. Both direct and indirect competition could adversely
affect our business and operating  results  through  pricing  pressure,  loss of
market  share and other  factors.  In  particular,  we expect  that,  over time,
average  selling prices for our print server  products will continue to decline,
as the market for these products becomes increasingly competitive.  Any material
reduction in the average selling prices of our products would  adversely  affect
gross margins. There can be no assurance we will be able to maintain the current
average selling prices of our products or the related gross margins.

      The principal  competitive  factors  affecting the market for our products
include:

      o     product functionality;

      o     performance;


                                       26


      o     quality;

      o     reliability;

      o     ease of use;

      o     quality of customer training and support;

      o     name recognition;

      o     price; and

      o     compatibility  and conformance with industry  standards and changing
            operating system environments.

      Several of our  existing  and  potential  competitors  have  substantially
greater financial,  engineering,  manufacturing and marketing resources than us.
We also experience  competition  from a number of other  software,  hardware and
service  companies.  In  addition  to  our  current  competitors,  we  may  face
substantial  competition from new entrants into the network  enhancement market,
including established and emerging computer, computer peripheral, communications
and software companies.  In the fax server market we compete with companies such
as Captaris Inc.,  Omtool,  Ltd. and Esker  Software.  There can be no assurance
that  competitors  will not introduce  products  incorporating  technology  more
advanced than the technology  used by us in our products.  In addition,  certain
competing  methods of  communications  such as the Internet or  electronic  mail
could adversely affect the market for fax products.  Certain of our existing and
potential  competitors in the print server market are  manufacturers of printers
and  other  peripherals,  and  these  competitors  may  develop  closed  systems
accessible only through their own proprietary servers. There can be no assurance
that we will be able to compete successfully or that competition will not have a
material  adverse  effect  on our  business,  operating  results  and  financial
condition.

We depend on sales in foreign  markets,  and  political  or economic  changes in
these  markets  could  affect our  business,  operating  results  and  financial
condition.

      Sales to  customers  located  outside  the  United  States  accounted  for
approximately  19%,  21%  and 25% of our net  sales  in  2003,  2002  and  2001,
respectively. We sell our products in approximately 44 foreign countries through
approximately 89 distributors.  Our principal Japanese distributor accounted for
approximately  38%,  27% and 40% of our  international  sales in 2003,  2002 and
2001, respectively,  and 7%, 6% and 10% of our total net sales in 2003, 2002 and
2001,  respectively.  We  expect  that  international  sales  will  continue  to
represent  a  significant  portion of our product  revenues  and that we will be
subject  to the  normal  risks of  international  sales,  such as  export  laws,
currency  fluctuations,  longer payment cycles, greater difficulties in accounts
receivable  collections  and the requirement of complying with a wide variety of
foreign laws. There can be no assurance that we will not experience difficulties
resulting from changes in foreign laws relating to the export of our products in
the future.  In addition,  because we primarily  invoice  foreign  sales in U.S.
dollars,  fluctuations in exchange rates could affect demand for our products by
causing  prices to be out of line with  products  priced in the local  currency.
Additionally,  any such difficulties would have a material adverse effect on our
international  sales and a resulting  material  adverse  effect on our business,
operating  results and financial  condition.  We may experience  fluctuations in
European sales on a quarterly basis because  European sales may be weaker during
the third quarter than the second quarter due to extended  holiday  shutdowns in
July and August.  There can be no assurance that we will be able to maintain the
level of  international  sales in the future.  Any fluctuations in international
sales will significantly affect our operating results and financial condition.

The introduction of new products may reduce the demand for our existing products
and increase returns of existing products.

      From  time to  time,  we may  announce  new  products,  product  versions,
capabilities or  technologies  that have the potential to replace or shorten the
life cycles of existing products. The release of a new


                                       27


product or product version may result in the write-down of products in inventory
if this inventory  becomes obsolete.  We have in the past experienced  increased
returns of a particular  product version following the announcement of a planned
release of a new version of that product. There can be no assurance that product
returns will not exceed our  allowance  for these returns in the future and will
not have a  material  adverse  effect on our  business,  operating  results  and
financial condition.

If we fail to obtain  components of our products from third-party  suppliers and
subcontractors, our business could suffer.

      Our products require components procured from third-party suppliers.  Some
of these  components  are  available  only from a single  source or from limited
sources. In addition,  we subcontract a substantial portion of our manufacturing
to third parties,  and there can be no assurance that these  subcontractors will
be able to support our manufacturing  requirements.  We purchase components on a
purchase  order  basis,  and  generally  have no long-term  contracts  for these
components.  If we are  unable to  obtain a  sufficient  supply of  high-quality
components from our current sources, we could experience delays or reductions in
product shipments.  From time to time, component  manufacturers announce the end
of life of  certain  of  their  products  and  may or may not  have  replacement
products.  If we are  unable to secure  enough  inventories  of the  end-of-life
components or their  replacements,  we might not be able to deliver our products
to our  customers  and  could  adversely  affect  our  revenue  and net  income.
Furthermore,  a  significant  increase  in the  price  of one or more  of  these
components  or our  inability  to lower  component  or  sub-assembly  prices  in
response  to  competitive  price  reductions  could  adversely  affect our gross
margin.

We depend on proprietary  technology,  and inability to develop and protect this
technology or license it from third parties could adversely affect our business,
operating results and financial condition.

      Our success depends to a certain extent upon our  technological  expertise
and proprietary software  technology.  We rely upon a combination of contractual
rights and  copyright,  trademark and trade secret laws to establish and protect
our  technologies.  Despite the precautions  taken by us, it may be possible for
unauthorized third parties to copy our products or to reverse engineer or obtain
and use information that we regard as proprietary. In addition, the laws of some
foreign  countries  either do not protect our  proprietary  rights or offer only
limited protection. Given the rapid evolution of technology and uncertainties in
intellectual property law in the United States and internationally, there can be
no  assurance  that our  current  or  future  products  will not be  subject  to
third-party claims of infringement.  Any litigation to determine the validity of
any  third-party  claims  could  result in  significant  expense  and divert the
efforts our technical and management personnel, whether or not any litigation is
determined in favor of us. In the event of an adverse result in  litigation,  we
could be  required to expend  significant  resources  to develop  non-infringing
technology or to obtain  licenses to the  technology  that is the subject of the
litigation.  There  can be no  assurance  that we  would be  successful  in this
development  or that  any  such  licenses  would be  available  on  commercially
reasonable terms. We also rely on technology licensed from third parties.  There
can be no assurance  that these  licenses  will  continue to be  available  upon
reasonable  terms, if at all. Any impairment or termination of our  relationship
with third-party licensors could have a material adverse effect on our business,
operating  results and financial  condition.  There can be no assurance that our
precautions  will be adequate to deter  misappropriation  or infringement of our
proprietary technologies.

      We have received, and may receive in the future,  communications asserting
that our products  infringe the  proprietary  rights of third parties or seeking
indemnification against the alleged infringement. There can be no assurance that
third  parties will not assert  infringement  claims  against us with respect to
current or future  products  or that any  assertion  may not require us to enter
into royalty arrangements or


                                       28


result in costly  litigation.  Any claims,  with or without  merit,  can be time
consuming  and  expensive  to  defend.  There  can  be  no  assurance  that  any
intellectual  property litigation will not have a material adverse effect on our
business, operating results and financial condition.

Our  common  stock is  listed on the  Nasdaq  SmallCap  Market,  and we have had
difficulty  satisfying the listing criteria to avoid the delisting of our common
stock.

      Our common stock has been listed on the Nasdaq SmallCap Market since April
1999. In order to maintain our listing on the Nasdaq  SmallCap  Market,  we must
maintain  total assets,  capital and public float at specified  levels,  and our
common stock  generally must maintain a minimum bid price of $1.00 per share. If
we fail to maintain the standards  necessary to be quoted on the Nasdaq SmallCap
Market,  our common stock could  become  subject to  delisting.  There can be no
assurance that we will be able to maintain the $1.00 minimum bid price per share
of our common stock and thus maintain our listing on the Nasdaq SmallCap Market.
We have traded below $1.00 as recently as December 2002.

      If our common  stock is  delisted,  trading in our common  stock  could be
conducted on the OTC Bulletin Board or in the over-the-counter market in what is
commonly  referred to as the "pink sheets." If this occurs,  a shareholder  will
find it more  difficult  to dispose of our  common  stock or to obtain  accurate
quotations  as to the price of our  common  stock.  Lack of any  active  trading
market would have an adverse effect on a  shareholder's  ability to liquidate an
investment  in our common  stock easily and quickly at a  reasonable  price.  It
might also  contribute to volatility in the market price of our common stock and
could adversely affect our ability to raise additional  equity or debt financing
on acceptable terms or at all. Failure to obtain desired financing on acceptable
terms could adversely  affect our business,  financial  condition and results of
operations.

Our stock price has been  volatile,  and is likely to continue to be volatile in
the future.

      The price of our common stock has fluctuated  widely in the past. Sales of
substantial  amounts of our common  stock,  or the  perception  that sales could
occur, could adversely affect prevailing market prices for our common stock. Our
management  believes  past  fluctuations  may have been  caused  by the  factors
identified above, and that these factors may continue to affect the market price
of our common stock. Additionally,  stock markets have experienced extreme price
volatility in recent years. This volatility has had a substantial  effect on the
market  price of the  common  stock of us and other high  technology  companies,
often for reasons unrelated to operating performance.  We anticipate that prices
for our common stock may continue to be volatile.  Future stock price volatility
may result in the  initiation  of  securities  litigation  against us, which may
divert substantial management and financial resources and have an adverse effect
on our business, operating results and financial condition.

We may require  additional  capital in the  future,  and may be unable to obtain
this capital at all or on commercially reasonable terms.

      The development and marketing of products requires  significant amounts of
capital.  If we need additional  capital  resources,  we may be required to sell
additional  equity  or debt  securities,  secure  additional  lines of credit or
obtain  other  third  party  financing.  The timing  and amount of such  capital
requirements  cannot be  determined  at this time and will depend on a number of
factors,  including  demand for our  existing  and new  products  and changes in
technology in the networking industry. There can be no assurance that additional
financing  will be  available  on  satisfactory  terms when  needed,  if at all.
Failure  to raise  such  additional  financing,  if  needed,  may  result in our
inability to achieve our long-term business  objectives.  The issuance of equity
or  convertible  debt  securities  to raise  additional  capital would result in
additional dilution to our shareholders.


                                       29


Government  regulation  could increase our costs of doing business and adversely
affect our gross margin.

      Certain  aspects  of the  networking  industry  in  which we  compete  are
regulated  both in the United  States and in foreign  countries.  Imposition  of
public  carrier  tariffs,  taxation  of  telecommunications   services  and  the
necessity of incurring substantial costs and expenditure of managerial resources
to obtain regulatory approvals,  or the inability to obtain regulatory approvals
within a reasonable period of time, could have a material, adverse effect on our
business,  operating results and financial condition.  This is particularly true
in foreign countries where telecommunications standards differ from those in the
United States.  Our products must comply with a variety of equipment,  interface
and installation standards promulgated by communications  regulatory authorities
in  different  countries.  Changes  in  government  policies,   regulations  and
interface standards could require the redesign of products and result in product
shipment  delays which could have a material,  adverse  impact on our  business,
operating results and financial condition.

The  costs of  compliance  with  recent  developments  in  corporate  governance
regulation may affect our business, operating results and financial condition in
ways that presently cannot be predicted.

      Beginning  with  the  enactment  of  the  Sarbanes-Oxley  Act of  2002,  a
significant number of new corporate governance requirements have been adopted or
proposed  through  legislation  and  regulation by the  Securities  and Exchange
Commission  and  Nasdaq  National  Stock  Market.  We may not be  successful  in
complying with these requirements at all times in the future.  Additionally,  we
expect these developments to increase our legal compliance and accounting costs,
and to make some activities more difficult,  such as stockholder approval of new
stock option plans.  We expect these  developments to make it more difficult and
more expensive for us to obtain director and officer liability insurance, and we
may be required to accept reduced coverage or incur  substantially  higher costs
to obtain coverage.  These  developments  could make it more difficult for us to
attract and retain  qualified  members of our Board of  Directors,  or qualified
executive  officers.  We are  presently  evaluating  and  monitoring  regulatory
developments  and cannot estimate the timing or magnitude of additional costs we
may incur as a result,  or the effect that these increased costs may have on our
operating results.

Recent  terrorist  activity  in the  United  States and the  military  action to
counter terrorism could adversely impact our business.

      Terrorist  acts or acts of war (wherever  located  around the world) could
significantly impact our revenue,  costs and expenses,  and financial condition.
The terrorist attacks that took place in the United States on September 11, 2001
have  created  many  economic  and  political  uncertainties,  some of which may
materially harm our business,  operating  results and financial  condition.  The
long-term  effects on our  business of the  September  11, 2001  attacks and the
ensuing war on terror are unknown.  The potential for future terrorist  attacks,
the national  and  international  responses  to  terrorist  attacks or perceived
threats to national security,  and other actual or potential conflicts,  acts of
war or hostility,  including the United States' activities in Iraq, have created
many  economic  and  political  uncertainties  that could  adversely  affect our
business,  operating  results  and  financial  condition  in  ways  that  cannot
presently be predicted.

Provisions  in our charter  documents  might deter a company from  acquiring us,
which could  inhibit  your  ability to receive an  acquisition  premium for your
shares.

      Our Board of Directors  has  authority to issue shares of preferred  stock
and to fix the rights,  including  voting  rights,  of these shares  without any
further  vote or action by the  shareholders.  The rights of the  holders of our
common stock will be subject to, and may be adversely affected by, the rights of
the  holders  of any  preferred  stock  that may be  issued in the  future.  The
issuance of preferred stock, while


                                       30


providing  desirable  flexibility in connection with possible  acquisitions  and
other corporate purposes,  could have the effect of making it more difficult for
a third party to acquire a majority of our  outstanding  voting  stock,  thereby
delaying,  deferring  or  preventing  a change  in  control.  Furthermore,  such
preferred stock may have other rights,  including economic rights, senior to the
common  stock,  and as a result,  the  issuance  thereof  could  have a material
adverse effect on the market.

Voting control by officers, directors and affiliates may delay, defer or prevent
a change of control.

      At April 30,  2004,  our  officers  and  directors  and  their  affiliates
beneficially owned  approximately 25% of the outstanding shares of common stock.
Accordingly,  together  they had the  ability  to  significantly  influence  the
election of our  directors and other  corporate  actions  requiring  shareholder
approval.  Such  concentration  of  ownership  may have the effect of  delaying,
deferring or preventing a change in control.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

      We had no holdings of  derivative  financial or commodity  instruments  at
March 31, 2004.  However,  we are exposed to financial  market risks,  including
changes in interest rates and foreign currency exchange rates. While much of our
revenue is transacted in U.S.  dollars,  some revenues and capital  spending are
transacted in Pounds Sterling.  These amounts are not currently  material to our
financial statements. Therefore, we believe that foreign currency exchange rates
should  not  materially  affect  our  overall  financial  position,  results  of
operations or cash flows. The fair value of our money market accounts or related
income would not be significantly impacted by increases or decreases in interest
rates due mainly to the highly liquid nature of this investment.  However, sharp
declines in interest rates could seriously harm interest earnings.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

      Regulations  under the  Securities  Exchange  Act of 1934  require  public
companies,   including  our  company,  to  maintain   "disclosure  controls  and
procedures," which are defined to mean a company's controls and other procedures
that are  designed to ensure that  information  required to be  disclosed in the
reports that it files or submits  under the  Securities  Exchange Act of 1934 is
recorded, processed, summarized, and reported, within the time periods specified
in the Securities and Exchange Commission's rules and forms.

      Regulations  under the  Securities  Exchange  Act of 1934  require  public
companies,  including  our  company,  to  evaluate  any change in our  "internal
control  over  financial  reporting,"  which is  defined as a process to provide
reasonable  assurance  regarding  the  reliability  of financial  reporting  and
preparation  of financial  statements for external  purposes in accordance  with
accounting principles generally accepted in the United States.

      At the time of the original filing on May 11, 2004 of the Company's report
on Form 10-Q for the quarter ended March 31, 2004 which this Form 10-Q/A amends,
officers of Castelle  provided  conclusions  regarding the  effectiveness of the
Company's  disclosure  controls  and  procedures  that they  believed  were then
accurate.  However,  during  the  fourth  quarter of fiscal  2004,  the  Company
determined  that: 1) its historical  classification  of cost of service revenues
did not conform to Generally Accepted  Accounting  Principles as such costs were
classified  as a component of sales and marketing  expenses  rather than cost of
sales,  due primarily to the fact that our internal  financial  reporting system
did not track this information


                                       31


separately from certain sales and marketing  expenses;  and 2) as a result of an
internal control deficiency,  service revenues  attributable to extended support
contracts  were  overstated  due to inadequate  procedures in place to correctly
recognize sales related to extended support contracts.

      Our management  evaluated,  with the  participation of our Chief Executive
Officer and our Chief Financial  Officer,  the  effectiveness  of our disclosure
controls and  procedures as of the end of the period  covered by our 2004 Annual
Report on Form 10-K and as of the periods  affected by the restatement  referred
to elsewhere in the Form 10-K. As a result of the  restatement  of the Company's
quarterly financial  information  included herein, and based on this evaluation,
our Chief Executive  Officer and our Chief Financial Officer have concluded that
our disclosure  controls and procedures  were not effective as of March 31, 2004
to ensure that  information  we are required to disclose in reports that we file
or submit under the  Securities  Exchange  Act of 1934 is  recorded,  processed,
summarized  and reported  within the time periods  specified in  Securities  and
Exchange Commission rules and forms.

      Effective  January 1,  2005,  the  Company  established  a cost  center to
separately capture the cost of service revenues as a component of cost of sales.
During the first quarter of fiscal 2005,  the Company also enhanced its internal
accounting  system to ensure that revenue relating to extended support contracts
is recognized  over the actual  contract term. Our Chief  Executive  Officer and
Chief Financial Officer believe that our disclosure controls and procedures were
effective as of March 31, 2005.

      In designing and evaluating our disclosure  controls and  procedures,  our
management  recognized  that any  controls  and  procedures,  no matter how well
designed and operated,  can provide only reasonable assurance of achieving their
objectives,  and our management  necessarily  applied its judgment in evaluating
the cost-benefit relationship of possible controls and procedures.


                                       32


                           PART II - OTHER INFORMATION

ITEM 5. LEGAL PROCEEDINGS

      None.

ITEM 6. CHANGES IN SECURITIES AND USE OF PROCEEDS

      None

ITEM 7. DEFAULTS UPON SENIOR SECURITIES

      None

ITEM 8. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

      None.

ITEM 9. OTHER INFORMATION

      None.

ITEM 10. EXHIBITS AND REPORTS ON FORM 8-K

      (a)   Exhibits:

            Additional Exhibits

            In accordance with SEC Release No.  33-8212,  Exhibits 32.1 and 32.2
            are to be treated as "accompanying"  this report rather than "filed"
            as part of the report.

            31.1  Certification  pursuant to 18 U.S.C.  Section 1350, as adopted
                  pursuant  to Section  302 of the  Sarbanes-Oxley  Act of 2002,
                  executed by Scott C.  McDonald,  Chief  Executive  Officer and
                  President of Castelle

            31.2  Certification  pursuant to 18 U.S.C.  Section 1350, as adopted
                  pursuant  to Section  302 of the  Sarbanes-Oxley  Act of 2002,
                  executed by Paul Cheng, Chief Financial Officer of Castelle

            32.1  Certification  pursuant to 18 U.S.C.  Section 1350, as adopted
                  pursuant  to Section  906 of the  Sarbanes-Oxley  Act of 2002,
                  executed by Scott C.  McDonald,  Chief  Executive  Officer and
                  President of Castelle

            32.2  Certification  pursuant to 18 U.S.C.  Section 1350, as adopted
                  pursuant  to Section  906 of the  Sarbanes-Oxley  Act of 2002,
                  executed by Paul Cheng, Chief Financial Officer of Castelle

      (b)   Reports on Form 8-K


                                       33


            Castelle filed a Form 8-K on February 13, 2004. Furnished under Item
            7,  "Financial  Statements  and  Exhibits",  Castelle  filed a press
            release  regarding its financial results for the year ended December
            31, 2003.


                                       34


                                   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.

CASTELLE

By: /s/ Scott C. McDonald                                  Date: May 4, 2005
    Scott C. McDonald
    Chief Executive Officer and President
    (Principal Executive Officer)

By: /s/ Paul Cheng                                         Date: May 4, 2005
    Paul Cheng
    Vice President of Finance and Administration
    Chief Financial Officer
    (Principal Financial Officer and
    Principal Accounting Officer)


                                       35


Exhibit
Number      Description
------      --------------------------------------------------------------------
  31.1      Certification  Pursuant to Section 302 of the  Sarbanes-Oxley Act of
            2002 - Chief Executive Officer

  31.2      Certification  Pursuant to Section 302 of the  Sarbanes-Oxley Act of
            2002 - Chief Financial Officer

  32.1      Certification Pursuant to 8 U.S.C. Section 1350, as Adopted Pursuant
            to Section 906 of the  Sarbanes-Oxley  Act of 2002 - Chief Executive
            Officer

  32.2      Certification Pursuant to 8 U.S.C. Section 1350, as Adopted Pursuant
            to Section 906 of the  Sarbanes-Oxley  Act of 2002 - Chief Financial
            Officer


                                       36