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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549
                            ------------------------


                                  FORM 10-K/A

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

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

                  FOR THE FISCAL YEAR ENDED DECEMBER 31, 1999
                            ------------------------

                        COMMISSION FILE NUMBER 000-23305
                            ------------------------

                                 FVC.COM, INC.

             (Exact Name of Registrant as Specified in its Charter)

<TABLE>
<S>                                            <C>
               DELAWARE                                     77-0357037
    (State or other jurisdiction of                      (I.R.S. Employer
    incorporation or organization)                     identification No.)

 3393 OCTAVIUS DRIVE, SANTA CLARA, CA                         95054
    (Address of principal executive                         (Zip code)
               offices)
</TABLE>

                                 (408) 567-7200
              (Registrant's Telephone Number, including area code)

          SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:
                                      None

          SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:
                         Common Stock, $0.001 par value

    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 / /

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

    As of February 29, 2000 there were 16,952,465 shares of the registrant's
common stock outstanding, and the aggregate market value of such shares held by
non-affiliates of the registrant (based upon the closing sale price of such
shares on the Nasdaq National Market on February 29, 2000) was approximately
$328 million. Shares of the registrant's common stock held by each executive
officer, director and holder of five percent or more of the registrant's common
stock outstanding as of February 29, 2000 have been excluded in that such
persons may be deemed to be affiliates. This determination of affiliate status
is not necessarily a conclusive determination for other purposes.

                      DOCUMENTS INCORPORATED BY REFERENCE

    Designated portions of the registrant's definitive proxy statement for the
2000 Annual Meeting of Stockholders are incorporated by reference into Part III
of this Form 10-K.

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                                EXPLANATORY NOTE


    This Amendment No. 1 to the Annual Report on Form 10-K for FVC.COM, Inc.
(the "Company") for the fiscal year ended December 31, 1999 is being filed to
amend Item 3 by adding an update for a recently filed appeal and Item 14(a)(3)
by replacing Exhibits 3.3, 10.4 and 10.10.

<PAGE>

                                    PART II


ITEM 3. LEGAL PROCEEDINGS.


    On or about April 9, 1999, several purported class action suits were filed
in the United States District Court for the Northern District of California
alleging violations of the federal securities laws against the Company and
certain of its officers and directors in connection with the Company's reporting
of its financial results for the period ended December 31, 1998. These actions
were dismissed by the court without leave to amend on February 14, 2000. The
plaintiffs filed a notice of appeal with the Ninth U.S. Circuit Court of Appeals
on March 29, 2000.


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

    The Company's common stock is traded on the Nasdaq National Market under the
symbol "FVCX." Public trading of the common stock commenced on April 29, 1998.
Prior to that, there was no public market for the common stock. The following
table sets forth, for the periods indicated, the high and low sale price per
share of the common stock on the Nasdaq National Market.

<TABLE>
<CAPTION>
                                                                  HIGH            LOW
                                                              -------------   ------------
<S>                                                           <C>             <C>
1998
  Second Quarter (from April 29, 1998)......................  $17             $9 1/2
  Third Quarter.............................................  $17 3/4         $7 1/2
  Fourth Quarter............................................  $19             $7 13/16

1999
  First Quarter.............................................  $15 3/8         $10
  Second Quarter............................................  $13 3/4         $3 3/4
  Third Quarter.............................................  $15 5/16        $6
  Fourth Quarter............................................  $15 15/16       $9
</TABLE>

    As of February 29, 2000, there were approximately 244 holders of record of
the Company's common stock. On February 29, 2000, the last sale price reported
on the Nasdaq National Market System for the Company's common stock was $19.375
per share.

    The Company has never declared or paid any cash dividends on its capital
stock. The Company intends to retain any future earnings to support operations
and to finance the growth and development of the Company's business and does not
anticipate paying cash dividends for the foreseeable future.

RECENT SALES OF UNREGISTERED SECURITIES

    On December 8, 1999, the Company issued to each of Mr. Ugo Assi and Kiwi
Ventura Servicos SA, in exchange for the share capital of FVC.COM BV held by
each of them, a warrant for the purchase of 30,833 shares of the Company's
common stock, at an exercise price of $12.00 per share. The warrants expire on
December 31, 2002. The warrants were issued pursuant to Regulation S under the
Securities Act of 1933, as amended.

                                       11
<PAGE>
                                    PART IV

ITEM 14. EXHIBITS, FINANCIAL SCHEDULES AND REPORTS ON FORM 8-K

(A) THE FOLLOWING DOCUMENTS ARE FILES AS PART OF THIS REPORT

    1.  FINANCIAL STATEMENTS

    The consolidated financial statements required by this item are submitted in
    a separate section beginning on page F-1 of this report.

<TABLE>
<S>                                                           <C>
Report of Independent Accountants...........................    F-1

Consolidated Balance Sheets at December 31, 1999 and 1998...    F-2

Consolidated Statements of Operations for each of the three
years in the period ended December 31, 1999.................    F-3

Consolidated Statements of Stockholders' Equity for each of
the three years in the period ended December 31, 1999.......    F-4

Consolidated Statements of Cash Flows for each of the three
years in the period ended December 31, 1999.................    F-5

Notes to Consolidated Financial Statements..................    F-6
</TABLE>

    2.  FINANCIAL STATEMENT SCHEDULES

    Schedules are omitted because the information required to be set forth
    therein is not applicable or is included in the financial statements or
    notes thereto.

    3.  EXHIBITS


<TABLE>
<CAPTION>
       EXHIBIT
       NUMBER                             DESCRIPTION OF DOCUMENT
---------------------                     -----------------------
<C>                     <S>
        2.1             Agreement and Plan of Merger and Reorganization among the
                        Registrant, FVC Acquisition Corp., ICAST Corporation and
                        Certain Shareholders of ICAST Corporation, dated as of July
                        30, 1998 (1)

        3.1             Amended and Restated Certificate of Incorporation of the
                        Registrant (2) (exhibit 3.3)

        3.2             Certificate of Ownership and Merger, effective August 3,
                        1998 (3) (exhibit 3.1(i))

        3.3             Amended Bylaws of the Registrant***

        4.1             Specimen Common Stock Certificate (3)

       10.1*            1997 Equity Incentive Plan (2)

       10.2*            Form of Incentive Stock Option Grant (2)

       10.3*            Form of Nonstatutory Stock Option Grant (2)

       10.4*            1997 Employee Stock Purchase Plan***

       10.5*            Form of 1997 Employee Stock Purchase Plan Offering (2)

       10.6*            1997 Non-Employee Directors' Stock Option Plan (2)

       10.7*            Form of Nonstatutory Stock Option Grant (5)

       10.8*            Executive Officers' Change of Control Plan (5)

       10.9*            Non-Employee Directors' Change of Control Plan (5)

       10.10*           1999 Equity Incentive Plan***

       10.11*           Form of Nonstatutory Stock Option Grant**
</TABLE>


                                       20
<PAGE>


<TABLE>
<CAPTION>
       EXHIBIT
       NUMBER                             DESCRIPTION OF DOCUMENT
---------------------                     -----------------------
<C>                     <S>
       10.12*           Form of Indemnification Agreement between the Registrant and
                        its directors and executive officers (2) (exhibit 10.7)

       10.13            Amended and Restated Investors' Rights Agreement, dated as
                        of April 1, 1998, among the Registrant and the investors
                        named therein (2) (exhibit 10.8)

       10.14            Lease Agreement between the Registrant and John Arrillaga,
                        or his successor Trustee, UTA 7/20/77, dated July 19, 1995
                        (the "Lease Agreement") (2) (exhibit 10.9)

       10.15            Amendment No. 1 to the Lease Agreement, dated November 7,
                        1997 (2) (exhibit10.9(i))

       10.16            Amendment No. 4 to the Lease Agreement, dated February 4,
                        1999 (5)

       10.17            Loan and Security Agreement between the Registrant and
                        Silicon Valley Bank ("SVB"), dated July 3, 1996 (2) (exhibit
                        10.10)

       10.18            Amendment to Loan and Security Agreement between the
                        Registrant and SVB, dated June 10, 1998 (3)
                        (exhibit10.10(i))

       10.19            Loan Modification Agreement between the Registrant and SVB,
                        dated as of March 10, 2000**

       10.20            Master Lease Agreement between the Registrant and Comdisco,
                        Inc. ("Comdisco"), dated April 30, 1997(2) (exhibit 10.11)

       10.21            Subordinated Loan and Security Agreement between the
                        Registrant and Comdisco, dated April 30, 1997(2) (exhibit
                        10.12)

       10.22            Original Equipment Manufacturing Agreement between the
                        Registrant and Bay Networks, Inc., dated November 3, 1995 as
                        amended through April 9, 1997 (2) (exhibit 10.13)

       10.23            Fourth Amendment to OEM Agreement, between the Registrant
                        and Bay Networks, Inc., dated October 26, 1997 (2)
                        (exhibit10.13(i))

       10.24            OEM Reseller Agreement between the Registrant and Northern
                        Telecom Inc., dated May 1, 1997 (2) (exhibit 10.14)

       10.25            Development and License Agreement between the Registrant and
                        Advanced Telecommunications Modules Limited, dated February
                        25, 1994, as amended (2) (exhibit 10.15)

       10.26            Equipment Manufacturing OEM Agreement between the Registrant
                        and VTEL Corporation, dated August 20, 1997 (2) (exhibit
                        10.16)

       10.27            Technology Licensing Agreement between IBM Corporation and
                        the Registrant, dated October 16, 1997 (2) (exhibit 10.17)

       10.28            Warrant issued to SVB, dated April 11, 1997 (2) (exhibit
                        10.18)

       10.29            Subordinated Loan and Security Agreement between the
                        Registrant and Comdisco, dated October 23, 1997 (2) (exhibit
                        10.20)

       10.30            Lease Agreement between the Registrant and John Arrillaga,
                        or his successor Trustee, UTA 7/20/77, dated November 7,
                        1997 (2) (exhibit 10.22)

       10.31            Letter Agreement between IBM Corporation and the Registrant,
                        dated February 8, 1998 (2) (exhibit 10.23)

       10.37            Employment Agreement, dated as of December 14, 1998, by and
                        between the Registrant and Richard M. Beyer (5)

       10.38            Amended and Restated Promissory Note, dated December 16,
                        1998, issued in favor of the Registrant by Allwyn Sequeira
                        (5)

       11.1             Statement of Computation of Earnings (Loss) Per Share (4)
</TABLE>


                                       21
<PAGE>


<TABLE>
<CAPTION>
       EXHIBIT
       NUMBER                             DESCRIPTION OF DOCUMENT
---------------------                     -----------------------
<C>                     <S>
       23.1             Consent of PricewaterhouseCoopers LLP**

       24.1             Power of Attorney (included on signature page)**

       27.1             Financial Data Schedule**
</TABLE>


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

NOTES TO EXHIBITS

 *  Management contract or compensatory plan or arrangement.


 ** Previously filed as part of the Registrant's initial Annual Report on
    Form 10-K filed with the Securities and Exchange Commission on March 30,
    2000.



 *** Filed herewith.


(1) Incorporated by reference to exhibit 2.1 to the Company's Current Report on
    Form 8-K filed on September 15, 1998 (File No. 000-23305).

(2) Incorporated by reference to the corresponding or indicated exhibit in the
    Company's Registration Statement on Form S-1, as amended (File No.
    333-38755).

(3) Incorporated by reference to the corresponding or indicated exhibit in the
    Company's Quarterly Report on Form 10-Q filed on June 10, 1998 (File No.
    000-23305).

(4) See Note 1 to the consolidated financial statements.

(5) Incorporated by reference to the corresponding or indicated exhibit in the
    Company's Annual Report on Form 10-K filed on April 15, 1999 (File
    No. 333-72533)

(B) REPORTS ON FORM 8-K

    None.

                                       22
<PAGE>
                                   SIGNATURES


    Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized, in the City of Santa
Clara, State of California, on the 4(th) day of April 2000.


<TABLE>
<S>                                                    <C>  <C>
                                                       FVC.COM, INC.,

                                                       By:             /s/ RICHARD M. BEYER
                                                            -----------------------------------------
                                                                         Richard M. Beyer
                                                              CHIEF EXECUTIVE OFFICER AND PRESIDENT
</TABLE>


    Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below by the following persons on behalf of the
registrant and in the capacities and on the dates indicated.



<TABLE>
<CAPTION>
                  SIGNATURE                                    TITLE                       DATE
                  ---------                                    -----                       ----
<C>                                            <S>                                    <C>
            /s/ RICHARD M. BEYER               Chief Executive Officer, President &
    ------------------------------------         Director (Principal Executive        April 4, 2000
              Richard M. Beyer                   Officer)

              /s/ TRUMAN COLE*                 Vice President and Chief Financial
    ------------------------------------         Officer (Principal Financial and     April 4, 2000
                 Truman Cole                     Accounting Officer)

            /s/ RALPH UNGERMANN*
    ------------------------------------       Chairman of the Board of Directors     April 4, 2000
               Ralph Ungermann

            /s/ NEAL M. DOUGLAS*
    ------------------------------------       Director                               April 4, 2000
               Neal M. Douglas

            /s/ DAVID A. NORMAN*
    ------------------------------------       Director                               April 4, 2000
               David A. Norman

             /s/ ROBERT WILMOT*
    ------------------------------------       Director                               April 4, 2000
                Robert Wilmot

           /s/ PIER CARLO FALOTTI*
    ------------------------------------       Director                               April 4, 2000
             Pier Carlo Falotti
</TABLE>



<TABLE>
<S>   <C>                                                    <C>                          <C>
*By:                  /s/ RICHARD M. BEYER
             --------------------------------------
                        Richard M. Beyer
                        ATTORNEY-IN-FACT
</TABLE>


                                       23