SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                               S C H E D U L E 13D

             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
            TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
                                 RULE 13d-2(a).
                              (Amendment No. 2)(1)

                     CELLULAR TECHNICAL SERVICES, CO., INC.
                                (Name of Issuer)

                         COMMON STOCK, $0.001 PAR VALUE
                         (Title of Class of Securities)

                                    151167103
                                 (CUSIP Number)

                                    Copy to:

Harvey Sandler                            Morrison Cohen Singer & Weinstein, LLP
1555 North Park Drive                     750 Lexington Avenue
Suite 101                                 New York, New York 10022
Weston, Florida 33326                     Telephone (212) 735-8600
Telephone (954) 389-7100


                 (Name, Address and Telephone Number of Persons
                Authorized to Receive Notices and Communications)

                                 April 27, 1999
              (Date of Event which Requires Filing this Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box
|_|.

NOTE:  Schedules  filed in paper format shall include a signed original and five
copies of the  schedule,  including  all  exhibits.  See Rule 13d-7(b) for other
parties to whom copies are to be sent.

                        (Continued on following page(s))

- ----------

     (1) The  remainder  of this cover page shall be filled out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter disclosures provided in a prior cover page.

     The  information  required on the remainder of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 or otherwise  subject to the  liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).


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CUSIP No. 151167103 13D ________________________________________________________________________________ 1 Names of Reporting Persons I.R.S. Identification Nos. of Above Persons (Entities Only) Harvey Sandler ________________________________________________________________________________ 2 Check the Appropriate Box if a Member of a Group* (a) [_] (b) [_] ________________________________________________________________________________ 3 SEC Use Only ________________________________________________________________________________ 4 Source of Funds* PF, WC ________________________________________________________________________________ 5 Check Box if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) [_] ________________________________________________________________________________ 6 Citizenship or Place of Organization United States ________________________________________________________________________________ 7 Sole Voting Power Number of 40,253 shares 1.8% Shares _________________________________________________________________ 8 Shared Voting Power Beneficially 2,000 shares .1% Owned By _________________________________________________________________ Each 9 Sole Dispositive Power Reporting 40,253 shares 1.8% Person _________________________________________________________________ 10 Shared Dispositive Power With 2,000 shares .1% ________________________________________________________________________________ 11 Aggregate Amount Beneficially Owned by Each Reporting Person 42,253 shares ________________________________________________________________________________ 12 Check Box if the Aggregate Amount in Row (11) excludes Certain Shares* [_] ________________________________________________________________________________ 13 Percent of Class Represented by Amount in Row (11) 1.9% ________________________________________________________________________________ 14 Type of Reporting Person* IN ________________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! - 2 of 7 -

CUSIP No. 151167103 13D ________________________________________________________________________________ 1 Names of Reporting Persons I.R.S. Identification Nos. of Above Persons (Entities Only) Phyllis Sandler ________________________________________________________________________________ 2 Check the Appropriate Box if a Member of a Group* (a) [_] (b) [_] ________________________________________________________________________________ 3 SEC Use Only ________________________________________________________________________________ 4 Source of Funds* PF, WC ________________________________________________________________________________ 5 Check Box if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) [_] ________________________________________________________________________________ 6 Citizenship or Place of Organization United States ________________________________________________________________________________ 7 Sole Voting Power Number of 2,000 shares .1% Shares _________________________________________________________________ 8 Shared Voting Power Beneficially 40,253 shares 1.8% Owned By _________________________________________________________________ Each 9 Sole Dispositive Power Reporting 2,000 shares .1% Person _________________________________________________________________ 10 Shared Dispositive Power With 40,253 shares 1.8% ________________________________________________________________________________ 11 Aggregate Amount Beneficially Owned by Each Reporting Person 42,253 shares ________________________________________________________________________________ 12 Check Box if the Aggregate Amount in Row (11) excludes Certain Shares* [_] ________________________________________________________________________________ 13 Percent of Class Represented by Amount in Row (11) 1.8% ________________________________________________________________________________ 14 Type of Reporting Person* IN ________________________________________________________________________________ *SEE INSTRUCTIONS BEFORE FILLING OUT! - 3 of 7 -

This statement, dated April 27, 1999, constitutes Amendment No. 2 to the Schedule 13D, dated March 27, 1997, regarding the reporting persons ownership of certain securities of Cellular Technical Services, Co., Inc. (the "Issuer"). This Schedule 13D is hereinafter referred to as the "Schedule." All capitalized terms used herein and otherwise undefined shall have the meanings ascribed in the Schedule. This Amendment No. 2 to the Schedule is filed in accordance with Rule 13d-2 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), by the reporting persons. It shall refer only to information which has materially changed since the filing of the Schedule. The information contained herein reflects a one-for-ten reverse stock split effected as of January 5, 1999. ITEM 3. Source and Amounts of Funds or Other Consideration The individual reporting person obtained funds for the purchase of the securities from the working capital of the reporting person's personal investment account. The amount of funds used in acquiring the additional securities are set forth below: Name Amount of Consideration ---- ----------------------- Harvey Sandler $138,316 Harvey Sandler, IRA Rollover Account $793,061 ITEM 4. Purpose of Transaction. The reporting persons acquired their securities for the purposes of investment. Other than the reporting persons purchase or sale of additional securities of the Issuer, no reporting person has any present plans or proposals which would relate to or result in any of the matters set forth in subparagraphs (a) through (j) of Item 4 of Schedule 13D except as set forth herein. ITEM 5. Interests in Securities of the Issuer. (a) The following list sets forth the aggregate number and percentage (based on 2,281,509 shares of Common Stock outstanding as reported by the Issuer in its Form 10-K for the year ended December 31, 1998, as of March 15, 1999) of outstanding shares of Common Stock owned beneficially by each reporting person named in Item 2, as of April 27, 1999: - 4 of 7 -

Shares of Percentage of Shares Common Stock of Common Stock Name Beneficially Owned Beneficially Owned - ---- ------------------ ------------------ Harvey Sandler 42,253(2),(3) 1.9% Phyllis Sandler 42,253(2),(3) 1.9% (b) Harvey Sandler has sole power to vote and to dispose of 40,253 shares of Common Stock, representing approximately 1.8% of the outstanding Common Stock. By virtue of being the husband of Phyllis Sandler, Harvey Sandler may be deemed to have shared power to vote and to dispose of 2,000 shares of Common Stock, representing approximately .1% of the outstanding Common Stock. Phyllis Sandler has sole power to vote and to dispose of 2,000 shares of Common Stock, representing approximately .1% of the outstanding Common Stock (including 100 shares held in the Phyllis Sandler IRA Account). By virtue of being the wife of Harvey Sandler, Phyllis Sandler may be deemed to have shared power to vote and to dispose of 40,253 shares of Common Stock, representing approximately 1.8% of the outstanding Common Stock. (c) The following is a description of all transactions in shares of Common Stock of the Issuer by the persons identified in Item 2 of this Schedule 13D effected from February 25, 1999 through April 27, 1999, inclusive: Purchase or Number of Shares Purchase or Name of Shareholder Sale Date Purchased or (Sold) Sale Price - ------------------- --------- ------------------- ---------- Harvey Sandler 4/27/99 (16,700) $9.0000 4/27/99 (4,800) 8.4375 4/27/99 (5,000) 8.3750 4/27/99 (7,150) 8.8750 4/27/99 (3,000) 8.1250 4/27/99 (2,500) 11.0000 4/27/99 (2,400) 9.0625 4/27/99 (2,900) 10.9375 4/27/99 (3,600) 8.2500 4/27/99 (1,800) 8.1875 4/27/99 (800) 9.1250 4/27/99 (700) 8.1250 4/27/99 (400) 11.1250 4/27/99 (100) 11.2500 4/27/99 (100) 10.8125 4/27/99 (100) 10.7500 4/27/99 (100) 9.1875 - ---------- (2) Includes 100 shares of Common Stock held in Mrs. Sandler's IRA Account. (3) The reporting person disclaims beneficial ownership of these securities, except to the extent of his/her equity interest therein. - 5 of 7 -

Purchase or Number of Shares Purchase or Name of Shareholder Sale Date Purchased or (Sold) Sale Price - ------------------- --------- ------------------- ---------- Harvey Sandler IRA Rollover Account 4/27/99 (1,600) $11.1250 4/27/99 (1,500) 11.0625 4/27/99 (9,225) 11.0000 4/27/99 (100) 11.3750 4/27/99 (600) 11.1875 4/27/99 (1,800) 10.8750 4/27/99 (1,300) 10.8125 4/27/99 (1,000) 10.7500 4/27/99 (500) 11.2500 Phyllis Sandler 4/27/99 (1,200) $10.5625 The transactions were effected in the over-the-counter market. (d) No other person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of such securities. (e) Effective April 27, 1999, the reporting persons ceased to be the beneficial owners of more than five percent (5%) of the Common Stock. - 6 of 7 -

Signature After reasonable inquiry and to the best of their knowledge and belief, each of the undersigned hereby certifies that the information set forth in this Schedule is true, complete, and correct. Dated: October 30, 2000 /s/ Harvey Sandler --------------------------- Harvey Sandler /s/ Phyllis Sandler --------------------------- Phyllis Sandler ATTENTION: INTENTIONAL MISSTATEMENTS OR OMISSIONS OF FACT CONSTITUTE FEDERAL CRIMINAL VIOLATIONS (SEE 18 U.S.C. 1001). - 7 of 7 -