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SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Rule 13d-102 INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b)(c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (Amendment No. 1)(1) Wireless Facilities, Inc. - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock, Par Value $0.001 per share - -------------------------------------------------------------------------------- (Title of Class of Securities) 33385515 - -------------------------------------------------------------------------------- (CUSIP Number) December 31, 2001 - -------------------------------------------------------------------------------- (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: |_| Rule 13d-1 (b) |_| Rule 13d-1 (c) |X| Rule 13d-1 (d) - ---------- (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 ("Act") 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).

Cusip No. 33385515 13G Page 2 of 21 pages - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Oak Investment Partners X, Limited Partnership 06-1601019 - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 6,282,884 Shares of Common Stock -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY Not applicable OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 6,282,884 Shares of Common Stock WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER Not applicable - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,282,884 Shares of Common Stock - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.80% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

Cusip No. 33385515 13G Page 3 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Oak Associates X, LLC 06-1630661 - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER Not applicable -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 6,282,884 Shares of Common Stock OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON Not applicable WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 6,282,884 Shares of Common Stock - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,282,884 Shares of Common Stock - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.80% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* OO-LLC - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

Cusip No. 33385515 13G Page 4 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Oak X Affiliates Fund, Limited Partnership 06-122220 - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 100,816 Shares of Common Stock -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY Not applicable OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 100,816 Shares of Common Stock WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER Not applicable - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 100,816 Shares of Common Stock - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.21% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

Cusip No. 33385515 13G Page 5 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Oak X Affiliates, LLC 06-1630662 - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER Not applicable -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 100,816 Shares of Common Stock OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON Not applicable WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 100,816 Shares of Common Stock - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 100,816 Shares of Common Stock - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.21% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* OO-LLC - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

Cusip No. 33385515 13G Page 6 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Oak Management Corporation 06-0990851 - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER Not applicable -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 6,383,700 Shares of Common Stock OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON Not applicable WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 6,383,700 Shares of Common Stock - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,383,700 Shares of Common Stock - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.97% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* CO - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

Cusip No. 33385515 13G Page 7 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Bandel L. Carano - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 5,582 Shares of Common Stock -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 6,383,700 Shares of Common Stock OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 5,582 Shares of Common Stock WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 6,383,700 Shares of Common Stock - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,394,864 Shares of Common Stock - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.98% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

Cusip No. 33385515 13G Page 8 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Edward F. Glassmeyer - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER Not applicable -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 6,383,700 Shares of Common Stock OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON Not applicable WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 6,383,700 Shares of Common Stock - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,383,700 Shares of Common Stock - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.97% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

Cusip No. 33385515 13G Page 9 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Fredric W. Harman - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER Not applicable -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 6,383,700 Shares of Common Stock OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON Not applicable WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 6,383,700 Shares of Common Stock - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,383,700 Shares of Common Stock - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.97% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

Cusip No. 33385515 13G Page 10 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Ann H. Lamont - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER Not applicable -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 6,383,700 Shares of Common Stock OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON Not applicable WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 6,383,700 Shares of Common Stock - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,383,700 Shares of Common Stock - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.97% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

Cusip No. 33385515 13G Page 11 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON David B. Walrod - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER Not applicable -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 6,383,700 Shares of Common Stock OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON Not applicable WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 6,383,700 Shares of Common Stock - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,383,700 Shares of Common Stock - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.97% - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

Cusip No. 33385515 13G Page 12 of 21 Schedule 13G Amendment No. 1* Common Stock Par Value $0.001 CUSIP No. 33385515 ITEM 1(A) NAME OF ISSUER: Wireless Facilities, Inc. ITEM 1(B) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 9805 Scranton Road, Suite 100 San Diego, California 92121 ITEM 2(A) NAME OF PERSON FILING: Oak Investment Partners X, Limited Partnership Oak Associates X, LLC Oak X Affiliates Fund, Limited Partnership Oak X Affiliates, LLC Oak Management Corporation Bandel L. Carano Edward F. Glassmeyer Fredric W. Harman Ann H. Lamont David B. Walrod ITEM 2(B) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE: c/o Oak Management Corporation One Gorham Island Westport, Connecticut 06880 ITEM 2(C) CITIZENSHIP: Please refer to Item 4 on each cover sheet for each filing person. ITEM 2(D) TITLE OF CLASS OF SECURITIES: Common stock, par value $0.001 per share ITEM 2(E) CUSIP NUMBER: 33385515 ITEM 3 Not applicable ITEM 4 OWNERSHIP. The approximate percentages of shares of Common Stock reported as beneficially owned by the Reporting Entities is based upon 46,948,177 shares outstanding as of November 6, 2001, as reported in the Issuer's Quarterly Report on Form 10-Q for the fiscal quarter ended September 30, 2001, plus shares issuable upon exercise of options to acquire common stock and upon the conversion of Series A preferred stock as described in the following paragraph.

Cusip No. 33385515 13G Page 13 of 21 Amounts shown as beneficially owned by each of Oak Investment Partners X, Limited Partnership ("Oak Investment X") and Oak Associates X, LLC, Oak Management, Bandel L. Carano, Edward F. Glassmeyer, Fredric W. Harman, Ann H. Lamont and David B. Walrod include (i) currently exercisable options to purchase 19,684 shares of common stock, which may be deemed to be held by Bandel L. Carano on behalf of Oak Investment X and (ii) the 6,263,200 shares of common stock into which the shares of Series A preferred stock held by Oak Investment X may be converted. Amounts shown as beneficially owned by each of Oak X Affiliates Fund, Limited Partnership ("Oak Affiliates X"), Oak X Affiliates, LLC, Oak Management, Bandel L. Carano, Edward F. Glassmeyer, Fredric W. Harman, Ann H. Lamont and David B. Walrod include (i) currently exercisable options to purchase 316 shares of common stock, which may be deemed to be held by Bandel L. Carano on behalf of Oak Affiliates X and (ii) the 100,500 shares of common stock into which the shares of Series A preferred stock held by Oak Affiliates X may be converted. Amounts shown as beneficially owned by Bandel L. Carano include 5,582 shares of common stock held by Mr. Carano. Please see Items 5, 6, 7, 8, 9 and 11 for each cover sheet for each filing entity. ITEM 5 OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS. If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following: [ ] ITEM 6 OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON. Not applicable ITEM 7 IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY. Not applicable ITEM 8 IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP. Not applicable ITEM 9 NOTICE OF DISSOLUTION OF GROUP. Not applicable ITEM 10 CERTIFICATIONS. Not applicable

Cusip No. 33385515 13G Page 14 of 21 After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. SIGNATURE: Dated: February 14, 2002 Entities: Oak Investment Partners X, Limited Partnership Oak Associates X, LLC Oak X Affiliates Fund, Limited Partnership Oak X Affiliates, LLC Oak Management Corporation By: /s/ Edward F. Glassmeyer ---------------------------- Edward F. Glassmeyer, as General Partner or Managing Member or as Attorney-in-fact for the above-listed entities Individuals: Bandel L. Carano Edward F. Glassmeyer Fredric W. Harman Ann H. Lamont David B. Walrod By: /s/ Edward F. Glassmeyer ---------------------------- Edward F. Glassmeyer, Individually and as Attorney-in-fact for the above-listed individuals

Cusip No. 33385515 13G Page 15 of 21 INDEX TO EXHIBITS PAGE ---- EXHIBIT A Agreement of Reporting Persons 16 EXHIBIT B Power of Attorney 17

Cusip No. 33385515                    13G                         Page 16 of 21

                                    EXHIBIT A

AGREEMENT OF REPORTING PERSONS

         Each of the undersigned hereby agrees that Amendment No.1 to Schedule
13G filed on the date hereof with respect to the shares of Common Stock of
Wireless Facilities, Inc. has been filed on behalf of the undersigned.

SIGNATURE:

         Dated: February 14, 2002

         Entities:

Oak Investment Partners X, Limited Partnership
Oak Associates X, LLC
Oak X Affiliates Fund, Limited Partnership
Oak X Affiliates, LLC
Oak Management Corporation

                                     By:    /s/ Edward F. Glassmeyer
                                            ----------------------------
                                                Edward F. Glassmeyer, as
                                                General Partner or
                                                Managing Member or as
                                                Attorney-in-fact for the
                                                above-listed entities

Individuals:

Bandel L. Carano
Edward F. Glassmeyer
Fredric W. Harman
Ann H. Lamont
David B. Walrod

                                     By:    /s/ Edward F. Glassmeyer
                                            ----------------------------
                                                Edward F. Glassmeyer,
                                                Individually and as
                                                Attorney-in-fact for the
                                                above-listed individuals

Cusip No. 33385515 13G Page 17 of 21 EXHIBIT B POWER OF ATTORNEY The undersigned hereby make, constitute and appoint each of EDWARD F. GLASSMEYER and ANN H. LAMONT, acting jointly or individually, with full power of substitution, the true and lawful attorney-in-fact for the undersigned, in the undersigned's name, place and stead and on the undersigned's behalf, to complete, execute and file with the United States Securities and Exchange Commission (the "Commission"), a statement on Schedule 13G with respect to the securities of any or all of the following entities: AIRSPAN NETWORKS INC., a Washington corporation; AVENUE A, INC., a Washington corporation; AVICI SYSTEMS INC., a Delaware corporation; ESPERION THERAPEUTICS, INC., a Delaware corporation; INTERNAP NETWORK SERVICES CORPORATION, a Delaware corporation; MOBIUS MANAGEMENT SYSTEMS, INC., a Delaware corporation; ODYSSEY HEALTHCARE, INC., a Delaware corporation; ORAPHARMA, INC., a Delaware Corporation; PRIMUS KNOWLEDGE SOLUTIONS, INC., a Washington corporation; THE STREET.COM, INC., a Delaware corporation; VICINITY CORPORATION, a Delaware corporation; and WIRELESS FACILITIES, INC., a Delaware corporation; and any and all amendments thereto pursuant to Section 13(d) of the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder, and any other forms, certificates, documents or instruments (including a Joint Filing Agreement) that the attorneys-in-fact (or either of them) deems necessary or appropriate in order to enable the undersigned to comply with the requirements of said Section 13(d) and said rules and regulations. This Power of Attorney shall remain in effect for a period of two years from the date hereof or until such earlier date as a written revocation thereof is filed with the Commission. Dated: February 14, 2002

Cusip No. 33385515 13G Page 18 of 21 Oak Management Corporation By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: President Oak Investment Partners VI, Limited Partnership By: Oak Associates VI, LLC, its general partner By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak Associates VI, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak VI Affiliates Fund, Limited Partnership By: Oak VI Affiliates, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak VI Affiliates, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member

Cusip No. 33385515 13G Page 19 of 21 Oak Investment Partners VII, Limited Partnership By: Oak Associates VII, LLC, its general partner By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak Associates VII, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak VII Affiliates Fund, Limited Partnership By: Oak VII Affiliates, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak VII Affiliates, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak Investment Partners VIII, Limited Partnership By: Oak Associates VIII, LLC, its general partner By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak Associates VIII, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member

Cusip No. 33385515 13G Page 20 of 21 Oak VIII Affiliates Fund, Limited Partnership By: Oak VIII Affiliates, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak VIII Affiliates, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak Investment Partners X, Limited Partnership By: Oak Associates X, LLC, its general partner By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak Associates X, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak X Affiliates Fund, Limited Partnership By: Oak X Affiliates, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member Oak X Affiliates, LLC By: /s/ Edward F. Glassmeyer --------------------------- Name: Edward F. Glassmeyer Title: Managing Member

Cusip No. 33385515 13G Page 21 of 21 /s/ Bandel L. Carano - -------------------------------- Bandel L. Carano /s/ Gerald R. Gallagher - -------------------------------- Gerald R. Gallagher /s/ Edward F. Glassmeyer - -------------------------------- Edward F. Glassmeyer /s/ Fredric W. Harman - -------------------------------- Fredric W. Harman /s/ Ann H. Lamont - -------------------------------- Ann H. Lamont /s/ David B. Walrod - -------------------------------- David B. Walrod