Document:

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                          REGISTRATION RIGHTS AGREEMENT

                  REGISTRATION RIGHTS AGREEMENT (this "Agreement"), dated as of
June 14, 2000, by and between Wire One Technologies, Inc., a Delaware
corporation (the "Company"), and the undersigned investors (each, an "Investor"
and, collectively, "the Investors").

                  WHEREAS, in connection with the Preferred Stock and Warrant
Purchase Agreement by and among the parties hereto of even date herewith (the
"Purchase Agreement"), the Company has agreed, upon the terms and subject to the
conditions contained therein, to issue and sell to the Investors (i) 2,450
shares of its Series A Convertible Preferred Stock (the "Preferred Stock") that
are convertible into shares (the "Conversion Shares") of the Company's common
stock, par value $.0001 per share (the "Common Stock"), upon the terms and
subject to the limitations and conditions set forth in the Certificate of
Designations, Rights, Preferences, Privileges and Restrictions with respect to
the Preferred Stock (the "Certificate of Designations") and (ii) warrants (the
"Warrants") to acquire 857,500 shares of Common Stock (the "Warrant Shares")
issued to the Investors upon the terms and conditions and subject to the
limitations and conditions set forth in the Warrants dated June 14, 2000; and

                  WHEREAS, to induce the Investors to execute and deliver the
Purchase Agreement, the Company has agreed to provide certain registration
rights under the Securities Act of 1933, as amended (the "Act"), and applicable
state securities law.

                  NOW, THEREFORE, in consideration of the foregoing and for
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the parties hereby agree as follows:

                  1. Definitions. For the purposes of this Agreement:

                           The term "Affiliate" means, with respect to any
person or entity, any other person or entity directly or indirectly controlling,
controlled by or under common control with the first such person or entity.

                           The term "Closing Date" means the date of the Closing
as such term is defined in the Purchase Agreement.

                           The term "current market value" means the
volume-weighted average sale price per share of Common Stock as reported by
Bloomberg Information Services, Inc. for the 30 consecutive trading days ending
one day prior to the date of determination.

                           The term "Holder" means a holder of Registrable
Securities or, unless the context otherwise requires, securities convertible
into or exercisable for Registrable Securities.

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                           The terms "register", "registered" and "registration"
refer to a registration effected by preparing and filing a registration
statement in compliance with the Act, and the declaration or ordering of
effectiveness of such registration statement.

                           The term "Registrable Securities" means the
Conversion Shares and the Warrant Shares, and any shares of capital stock issued
or issuable in respect of the foregoing as a result of any stock split, stock
dividend, recapitalization, reclassification, exchange, combination, merger,
consolidation, distribution or similar event; provided, however, that an
Investor's Registrable Securities shall cease to be Registrable Securities when
and to the extent that (i) such Registrable Securities have been sold pursuant
to an effective registration statement under the Act, (ii) such Registrable
Securities have become eligible for resale pursuant to Rule 144(k) of the Act
(or any similar provision then in force) or another provision of Rule 144 of the
Act pursuant to which all of such Investor's Registrable Securities are eligible
for resale or (iii) such Registrable Securities have ceased to be outstanding.

                           The term "Registration Statement" means a
registration statement of the Company filed under the 1933 Act.

                           The term "SEC" means the United States Securities and
Exchange Commission.

                  2. Registration Rights.

                           2.1. Mandatory Registration. (a) The Company shall
prepare and, as soon as practicable but in no event later than forty five (45)
days after the Closing Date, file with the SEC a Registration Statement on Form
S-1 covering the resale of all of the Registrable Securities. The Company shall
use its commercially reasonable efforts to have the Registration Statement
declared effective by the SEC as soon as practicable, but in no event later than
the date which is the earlier of (i) one hundred twenty (120) days after the
Closing Date or (ii) five (5) days after receiving a "no review" status from the
SEC with respect to such Registration Statement;

                           (b) If the Registration Statement covering the
Registrable Securities required to be filed by the Company pursuant to Section
2.1(a) hereof is not declared effective by the SEC within 120 days after the
Closing Date, then for each month (prorated for partial months) following such
120-day period prior to the date the Registration Statement is declared
effective, the Company will issue to each Investor warrants to purchase 2% of
the amount of Purchase Price paid by such Investor pursuant to the Purchase
Agreement at an exercise price of the current market value of the Common Stock;
provided, however, that there shall be excluded from such 120-day period any
delays which are solely attibutable to changes required by the Investors in the
Registration Statement with respect to information relating to the Investors,
including, without limitation, changes to the plan of distribution, or the
failure of Investors to conduct their review of the Registration Statement
pursuant to Section 2.2(c) below in a reasonably timely manner.

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                           2.2. Obligations of the Company. At such time as the
Company is obligated to file a Registration Statement with the SEC pursuant to
Section 2.1(a), the Company will use its commercially reasonable efforts to
effect the registration of the Registrable Securities in accordance with the
intended method of disposition thereof and, pursuant thereto, the Company shall:

                           (a) Prepare and file with the SEC a Registration
Statement with respect to the Registrable Securities no later than forty five
(45) days after the Closing Date pursuant to Section 2.1(a) and use its
commercially reasonable efforts to cause such Registration Statement relating to
the Registrable Securities to become effective as soon as possible after such
filing but in no event later than the date which is the earlier of (i) one
hundred twenty (120) days after the Closing Date or (ii) five (5) days after
receiving a "no review" status from the SEC with respect to such Registration
Statement, and keep such Registration Statement effective pursuant to Rule 415
at all times until the earlier of (i) the date as of which the Investors may
sell all of the Registrable Securities without restriction pursuant to Rule
144(k) promulgated under the 1933 Act (or successor thereto) or (ii) the date on
which the Investors shall have sold all the Registrable Securities, which
Registration Statement (including any amendments or supplements thereto and
prospectuses contained therein) shall not contain any untrue statement of a
material fact or omit to state a material fact required to be stated therein or
necessary to make the statements therein, in light of the circumstances in which
they were made, not misleading.

                           (b) Prepare and file with the SEC such amendments and
supplements to such Registration Statement and the prospectus used in connection
with such Registration Statement as may be necessary to comply with the
provisions of applicable law with respect to the disposition of all securities
covered by such Registration Statement.

                           (c) Furnish to each Holder of Registrable Securities
registering such securities such numbers of copies of a prospectus, including a
preliminary prospectus, in conformity with the requirements of applicable law,
and such other documents as each such Holder may reasonably request in order to
facilitate the disposition of Registrable Securities owned by it.

                           (d) Use all reasonable efforts to register and
qualify the securities covered by such Registration Statement under state blue
sky laws in any U.S. jurisdictions in which such registration and qualification
is reasonably requested by any Holder; provided, however, that the Company shall
not be required in connection therewith or as a condition thereto to qualify to
do business, subject itself to general taxation or file a general consent to
service of process in any such jurisdictions.

                           (e) In the event of any underwritten public offering,
enter into and perform its obligations under an underwriting agreement, in form
and substance reasonably satisfactory to the Company, with the managing
underwriter of such offering.

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                           (f) Promptly notify the Holders: (i) when the
Registration Statement, the prospectus or any prospectus supplement related
thereto or post-effective amendment to the Registration Statement has been
filed, and, with respect to the Registration Statement or any post-effective
amendment thereto, when the same has become effective; (ii) of any request by
the SEC for amendments or supplements to the Registration Statement or related
prospectus or any written request by the SEC for additional information; (iii)
of the issuance by the SEC of any stop order suspending the effectiveness of the
Registration Statement or the initiation of any proceedings by any person for
that purpose; and (iv) of the receipt by the Company of any written notification
with respect to the suspension of the qualification of any Registrable
Securities for sale in any jurisdiction or the initiation or overt threat of any
proceeding for such purpose.

                           (g) Notify the Holders, at any time when a prospectus
relating thereto is required to be delivered under applicable law, of the
happening of any event as a result of which the prospectus included in the
Registration Statement, as then in effect, includes an untrue statement of a
material fact or omits to state a material fact required to be stated therein or
necessary to make the statements therein not misleading in the light of the
circumstances then existing and at the request of any such Holder promptly
prepare and furnish to such Holder a reasonable number of copies of a supplement
to or an amendment of such prospectus as may be necessary so that, as thereafter
delivered to the purchasers of such securities, such prospectus shall not
include an untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary to make the statements therein not
misleading in the light of the circumstances then existing.

                           (h) Use all reasonable efforts to cause the transfer
agent to remove restrictive legends on certificates representing the securities
covered by such Registration Statement, as appropriate.

                           (i) Use all reasonable efforts to have the securities
covered by the Registration Statement listed on the same quotation system or
market as the Common Stock.

                           2.3. Furnish Information.

                           (a) It shall be a condition precedent to the
obligation of the Company to include any Registrable Securities of any Holder in
a Registration Statement pursuant to this Section 2 that the Holder shall
furnish to the Company such information regarding itself, the Registrable
Securities held by it and the intended method of disposition of such Registrable
Securities as shall be required to effect the registration of the Registrable
Securities held by such Holder. Any such information, or any comments on any
such information included in a draft of a Registration Statement provided to a
Holder for its comment, shall be provided to the Company within any reasonable
time period requested by the Company.

                           (b) Each Holder shall notify the Company, at any time
when a prospectus is required to be delivered under applicable law, of the
happening of any event

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as a result of which the prospectus included in the applicable Registration
Statement, as then in effect, in each case only with respect to information
provided by such Holder, includes an untrue statement of a material fact or
omits to state a material fact required to be stated therein or necessary to
make the statements therein not misleading in light of the circumstances then
existing. Such Holder shall immediately upon the happening of any such event
cease using such prospectus. Any other Holders shall cease using such prospectus
immediately upon receipt of notice from the Company to that effect. If so
requested by the Company, each Holder promptly shall return to the Company any
copies of any prospectus in its possession (other than permanent file copies)
that contains an untrue statement of a material fact or omits to state a
material fact required to be stated therein or necessary to make the statements
therein not misleading in light of the circumstances then existing.

                           2.4. Expenses of Registration. The Company shall bear
and pay all reasonable expenses incurred in connection with any registration,
filing or qualification of Registrable Securities pursuant to this Section 2.
Notwithstanding the foregoing, each of the Company and the Holders shall be
required to pay and bear their own legal expenses in connection with any
registration.

                           2.5. Underwriting Requirements. In connection with
any underwritten offering of a Holder's Registrable Securities, the Company
shall not be required to register any Registrable Securities in connection with
an underwritten offering unless the Holder accepts the underwriters selected by
the Company and then only in such quantity as the lead managing underwriter
determines, in its good faith discretion, will not jeopardize the success of the
offering by the Company. To the extent that the lead managing underwriter will
not permit the registration of all of the Registrable Securities sought to be
registered pursuant to this Section 2, the Registrable Securities to be included
shall be apportioned among the Holders on a pro rata basis (based on the number
of shares of Common Stock proposed to be registered by each). Those Registrable
Securities that are excluded from the underwriting by reason of the managing
underwriter's marketing limitation and all other Registrable Securities not
originally requested to be so included shall not be included in such
registration and shall be withheld from the market by the Holders thereof for a
period, not to exceed 90 days, which the managing underwriter reasonably
determines necessary to effect the underwritten public offering. No Holder of
Registrable Securities shall be entitled to participate in an underwritten
offering unless such Holder enters into, and performs its obligations under, one
or more underwriting agreements and any related agreements and documents
(including an escrow agreement and/or a power of attorney with respect to the
disposition of the Registrable Securities), in the form that such Holder shall
agree to with the lead managing underwriter of the transaction. If any Holder
disapproves of the terms of any underwriting, it may elect, prior to the
execution of any underwriting agreement, to withdraw therefrom by written notice
to the Company and the lead managing underwriter. Any Registrable Securities so
withdrawn from an underwriting by such Holder shall be withdrawn from such
registration and shall not be transferred in a public distribution prior to 180
days following the effective date of the Registration Statement relating
thereto.

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                           2.6. Delay of Registration. No Holder shall have any
right to obtain or seek an injunction restraining or otherwise delaying any
registration as the result of any controversy that might arise with respect to
the interpretation or implementation of this Section 2.

                           2.7. Indemnification. In the event any Registrable
Securities are included in a Registration Statement under this Section 2:

                           (a) To the extent permitted by law, the Company will
indemnify and hold harmless each Holder and each person, if any, who controls
such Holder within the meaning of the Act and the Securities Exchange Act of
1934, as amended (the "1934 Act"), and their respective directors, officers,
partners, employees and affiliates (each, an "Indemnified Person"), against any
losses, claims, damages, or liabilities, joint or several, to which they may
become subject insofar as such losses, claims, damages or liabilities (or
actions in respect thereof) arise out of or are based upon (i) any untrue
statement or alleged untrue statement of a material fact contained in such
registration statement, including any final prospectus contained therein or any
amendments or supplements thereto or (ii) the omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein not misleading, and the Company will pay to each
Indemnified Person any reasonable legal or other expenses incurred by it in
connection with investigating or defending any such loss, claim, damage,
liability or action; provided, however, that the indemnity agreement contained
in this Section 2.7(a) shall not apply to amounts paid in settlement of any such
loss, claim, damage, liability or action if such settlement is effected without
the consent of the Company, nor shall the Company be liable in any such case for
any such loss, claim, damage, liability or action to the extent that it arises
out of or is based upon any untrue statement or alleged untrue statement or
omission or alleged omission which occurs in reliance upon and in conformity
with written information furnished by a Holder expressly for use in connection
with such registration or is caused by any failure by the Holder to deliver a
prospectus or preliminary prospectus (or amendment or supplement thereto) as and
when required under the Act after such prospectus has been timely furnished by
the Company.

                           (b) To the extent permitted by law, each Holder will
indemnify and hold harmless the Company, each of its directors, each of its
officers who has signed the Registration Statement, and each person, if any, who
controls the Company within the meaning of the Act or the 1934 Act, against any
losses, claims, damages or liabilities (joint or several) to which any of the
foregoing persons may become subject, insofar as such losses, claims, damages or
liabilities (or actions in respect thereto) arise out of or are based upon (x)
any untrue statement or alleged untrue statement contained in, or any omission
or alleged omission from, information furnished in writing to the Company by the
Holder specifically and expressly for use in any such Registration Statement or
prospectus or (y) any failure by the Holder to deliver a prospectus or
preliminary prospectus (or amendment or supplement thereto) as and when required
under the Act after such prospectus has been timely furnished by the Company.
Such Holder will pay any reasonable legal or other expenses incurred by any
Indemnified Person pursuant to this Section 2.7(b) in connection with
investigating or defending any such loss, claim,

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damage, liability or action; provided, however, that the indemnity agreement
contained in this Section 2.7(b) shall not apply to amounts paid in settlement
of any such loss, claim, damage, liability or action if such settlement is
effected without the consent of the Holder.

                           (c) Promptly after receipt by an indemnified party
under this Section 2.7 of notice of the commencement of any action (including
any governmental action), such indemnified party will, if a claim in respect
thereof is to be made against any indemnifying party under this Section 2.7,
deliver to the indemnifying party a written notice of the commencement thereof,
and the indemnifying party shall have the right to participate in, and, to the
extent the indemnifying party so desires, jointly with any other indemnifying
party similarly noticed, to assume the defense thereof with counsel mutually
satisfactory to the indemnifying parties; provided, however, that an indemnified
party (together with all other indemnified parties that may be represented
without conflict by one counsel) shall have the right to retain one separate
counsel, with the reasonable fees and expenses to be paid by the indemnifying
party, if representation of such indemnified party by the counsel retained by
the indemnifying party would be inappropriate (in the opinion of counsel to the
indemnifying party) due to actual or potential differing interests between such
indemnified party and any other party represented by such counsel in such
proceeding. The failure to deliver written notice to the indemnifying party
within a reasonable time of the commencement of any such action, if prejudicial
to its ability to defend such action, shall relieve such indemnifying party of
any liability to the indemnified party under this Section 2.7, but the omission
so to deliver written notice to the indemnifying party will not relieve it of
any liability that it may have to any indemnified party otherwise than under
this Section 2.7.

                           (d) The obligations of the Company and the Holders
under this Section 2.7 shall survive the completion of any offering of
Registrable Securities under a Registration Statement pursuant to this Section
2.

                           (e) Notwithstanding the foregoing, the
indemnification and contribution provisions contained in the underwriting
agreement entered into in connection with the underwritten public offering shall
supercede the provisions of Section 2.7 and Section 2.8 of this Agreement.

                           2.8. Contribution. To the extent any indemnification
by an indemnifying party is prohibited or limited by law, the indemnifying party
agrees to make the maximum contribution with respect to any amounts for which it
would otherwise be liable under Section 2.7 to the fullest extent permitted by
law; provided, however, that (i) no contribution shall be made under the fault
standards set forth in Section 2.7, (ii) no seller of Registrable Securities
guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of
the 1933 Act) shall be entitled to contribution from any seller of Registrable
Securities who was not guilty of such fraudulent misrepresentation, and (iii)
contribution by any seller of Registrable Securities shall be limited in amount
to the net amount of proceeds received by such seller from the sale of such
Registrable Securities.

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                           2.9. Rule 144 Reporting. With a view to making
available to the Holders the benefits of certain rules and regulations of the
SEC that permit the sale of the Registrable Securities to the public without
registration, the Company agrees to use all reasonable efforts to:

                           (a) Make and keep public information available, as
those terms are understood and defined in SEC Rule 144 or any similar or
analogous rule promulgated under the Act, at all times after the effective date
of the first registration filed by the Company for an offering of its securities
to the general public;

                           (b) File with the SEC, in a timely manner, all
reports and other documents required of the Company under the 1934 Act; and

                           (c) So long as a Holder owns any Registrable
Securities, furnish such Holder forthwith upon request: a written statement by
the Company as to its compliance with the reporting requirements of said Rule
144 of the Act, and of the 1934 Act (at any time after it has become subject to
such reporting requirements); a copy of the most recent annual or quarterly
report of the Company; and such other reports and documents as a Holder may
reasonably request in availing itself of any rule or regulation of the SEC
allowing it to sell any such securities without registration.

                  3. Miscellaneous.

                           3.1. Successors and Assigns. The provisions of this
Agreement shall inure to the benefit of and be binding upon the respective
successors and permitted assigns of the parties hereto. Nothing in this
Agreement, express or implied, is intended to confer upon any party other than
the parties hereto or their respective successors and permitted assigns any
rights, remedies, obligations or liabilities under or by reason of this
Agreement. Nothing contained herein shall be construed as permitting any
transfer of any securities of the Company in violation of any applicable law or
agreement.

                           3.2. Assignment of Registration Rights. The rights to
cause the Company to register Registrable Securities pursuant to Section 2 may
be assigned by a Holder to a permitted transferee or assignee of Registrable
Securities which (a) is a subsidiary, parent, general partner, limited partner,
retired partner, Affiliate, beneficial owner, member or retired member of a
Holder, or (b) is a Holder's family member or trust for the benefit of an
individual Holder; provided, however, (i) the transferor shall, within ten (10)
days after such transfer, furnish to the Company written notice of the name and
address of such transferee or assignee and the securities with respect to which
such registration rights are being assigned and (ii) such transferee shall agree
to be subject to all restrictions set forth in this Agreement.

                           3.3. Governing Law. This Agreement shall be governed
by and construed in accordance with the laws of the State of New York applicable
to contracts made and to be performed entirely within such State. Each of the
Investors and the Company hereby submits to the nonexclusive jurisdiction of the
United States District Court for the Southern District of New York and of any
New York State court sitting in

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the City of New York, Borough of Manhattan, for purposes of all legal
proceedings arising out of or relating to this Agreement and the transactions
contemplated hereby. Each of the Investors and the Company irrevocably waives,
to the fullest extent permitted by law, any objection which it may now or
hereafter have to the laying of the venue of any such proceeding brought in such
a court and any claim that any such proceeding brought in such a court has been
brought in an inconvenient forum.

                           3.4. Waiver of Jury Trial. EACH PARTY HERETO HEREBY
WAIVES ITS RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR
ARISING OUT OF THIS AGREEMENT. The scope of this waiver is intended to be
all-encompassing of any and all disputes that may be filed in any court and that
relate to the subject matter of this transaction, including, without limitation,
contract claims, tort claims, breach of duty claims, and all other common law
and statutory claims. Each party hereto hereby further warrants and represents
that such party has reviewed this waiver with its legal counsel, and that such
party knowingly and voluntarily waives its jury trial rights following
consultation with legal counsel. This waiver is irrevocable, meaning that it may
not be modified either orally or in writing, and this waiver shall apply to any
subsequent amendments, supplements or modifications to (or assignments of) this
agreement. In the event of litigation, this agreement may be filed as a written
consent to a trial (without a jury) by the court.

                           3.5. Counterparts. This Agreement may be executed in
counterparts, each of which shall be deemed an original, and all of which
together shall constitute one and the same instrument.

                           3.6. Captions and Headings. The captions and headings
used in this Agreement are used for convenience only and are not to be
considered in construing or interpreting this Agreement.

                           3.7. Notices. Unless otherwise provided, any notice
or other communication required or permitted to be given or effected under this
Agreement shall be in writing and shall be deemed effective upon personal or
facsimile delivery to the party to be notified or three business days after
deposit with an internationally recognized courier service, delivery fees
prepaid, and addressed to the party to be notified at the following respective
addresses, or at such other addresses as may be designated by written notice;
provided, however, that any notice of change of address shall be deemed
effective only upon receipt.

         If to the Company:          Wire One Technologies, Inc.
                                     225 Long Avenue
                                     Hillside, NJ  07205
                                     Attn:  Richard Reiss
                                     Phone:  (973) 282-2000
                                     Fax:  (973) 282-2033

         with a copy to:             Morrison & Foerster LLP
                                     1290 Avenue of the Americas

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                                     New York, New York  10104
                                     Attn:  Michael J.W. Rennock, Esq.
                                     Phone: (212) 468-8000
                                     Fax:  (212) 468-7900

         If to the Investors:        Notice shall be sent to the person
                                     and addressindicated on the signature
                                     page hereof.

                           3.8. Amendments and Waivers. The provisions of this
Agreement, including the provisions of this sentence, may not be amended,
modified or supplemented, and waivers or consents to departures from the
provisions hereof may not be given, unless the Company has obtained written
consent of the Holders of at least a majority of the outstanding Registrable
Securities affected by such amendment, modification, supplement, waiver or
departure and upon obtaining such consent will bond all Holders, including those
who did not consent; provided, however, that no amendment, modification,
supplement, waiver or consent to the departure with respect to the provisions of
Section 2.7 hereof shall be effective as against any person unless consented to
in writing by such person. Notwithstanding the foregoing, any Holder may waive
its own rights under this Agreement.

                           3.9. Severability. If one or more provisions of this
Agreement are held to be unenforceable under applicable law, such provisions
shall be excluded from this Agreement and the balance of this Agreement shall be
interpreted as if such provision were so excluded and shall be enforceable in
accordance with its terms.

                           3.10. Entire Agreement. This Agreement contains the
entire understanding of the parties hereto with respect to the subject matter
contained herein, and supersedes and cancels all prior agreements, negotiations,
correspondence, undertakings and communications of the parties, oral or written,
respecting such subject matter. There are no restrictions, promises,
representations, warranties, agreements or undertakings of any party hereto with
respect to the matters contemplated hereby, other than those set forth herein or
made hereunder.

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         IN WITNESS WHEREOF, the parties, each by its duly authorized signatory,
have executed this Agreement as of the date first above written.

Wire One Technologies, Inc.           INVESTORS:

                                      Peconic Fund Ltd.

By:  /s/ Richard Reiss                By: Marren Ogilvie
     ---------------------------          --------------
     Name: Richard Reiss                  Name:  Marren Ogilvie
     Title: President and CEO             Title: General Counsel of
                                          Ramius Capital Group, its
                                          investment advisor
                                          Address: 666 Third Avenue, 26th Floor
                                          New York, New York  10017

                                          Facsimile: 212.845.7995
                                          Telephone: 212.845.7909

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                           WIRE ONE TECHNOLOGIES, INC.
                          REGISTRATION RIGHTS AGREEMENT

                           Counterpart Signature Page

                                   INVESTORS:

Adrien W. Mauerman Test Trust

By:   /s/ George S. Mauerman
      ----------------------
      Name:    George S. Mauerman
      Title:   Trustee
      Address: P.O. Box 116427
      Carrollton, Texas  75011

      Facsimile: 815-846-8597
      Telephone: 815-896-8813

      /s/ Matthew Balk
      ----------------
      Name:     Matthew Balk
      Address:  245 Park Avenue, 44th Floor
      New York, New York 10167

      Facsimile: 212.856.5709
      Telephone: 212.856.5700

      /s/ Stephen D. Barrett
      ----------------------
      Name:     Stephen D. Barrett
      Address:  One Boston Place
      Boston, MA 02108

      Facsimile: 617.788.9581
      Telephone: 617.277.3100

                                       12
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                           Counterpart Signature Page

                                   INVESTORS:

Baystar Capital, L.P.

By:   /s/ Michael A. Roth
      -------------------
      Name:    Michael A. Roth
      Title:   Partner
      Address: 1500 W. Market St., Suite 200
      Mequon, WI 53092

      Facsimile:
      Telephone:

Baystar International, LTD.

By:   /s/ Michael A. Roth
      -------------------
      Name:    Michael A. Roth
      Title:   Partner
      Address: 1500 W. Market St., Suite 200
      Mequon, WI 53092

      Facsimile:
      Telephone:

      /s/ Spence Beal
      ---------------
      Name:    Spence Beal
      Address: 6726 E. Northwest Highway
      Dallas, Texas  75231

      Facsimile:
      Telephone: 214.454.7293

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                           Counterpart Signature Page

                                   INVESTORS:

      /s/ Ivan Berkowitz
      ------------------
      Name:    Ivan Berkowitz
      Address: 1790 Broadway, #1500
      New York, New York  10019

      Facsimile: 212.757.3423
      Telephone: 212.757.3333

Carnes Investment

By:   /s/ Jon Richard Carnes
      ----------------------
      Name:    Jon Richard Carnes
      Title:
      Address:2204 Madagascar Lane
      Las Vegas, Nevada  89117

      Facsimile: 702.214.8491
      Telephone: 702.214.8490

Castle Creek Partners, LLC

By:   /s/ Fred Goldman
      ----------------
      Name:    Fred Goldman
      Title:   Member
      Address: 77 W. Wacker Drive, Ste. 4040
      Chicago, Illinois  60601

      Facsimile:  312.499.6999
      Telephone:  312.499.6400

                                       14
<PAGE>

                           Counterpart Signature Page

                                   INVESTORS:

Cranshire Capital LLP

By:   /s/ Illegible
      --------------------------------------
      Name:
      Title:   President - Downsview Capital
      Address: 666 Dundee Park, Suite 1901
      Northbrook, IL  60062

      Facsimile: 847.562.9031
      Telephone: 847.562.9030

      /s/ Eric R. Elliott
      -------------------
      Name:    Eric R. Elliott
      Address: 2875 Pine Tree Drive
      Miami Beach, Florida  33140

      Facsimile: 305.538.5655
      Telephone: 305.534.7400

Global Euronet Group, Inc.

By:   /s/ Christopher D. Jennings
      ---------------------------
      Name:    Christopher D. Jennings
      Title:   Co-Chief Executive Officer
      Address: 11601 Wilshire Blvd., Ste. 500
      Los Angeles, CA  90025

      Facsimile: 310.575.4813
      Telephone: 310.575.4810

                                       15
<PAGE>

                           Counterpart Signature Page

                                   INVESTORS:

      /s/ Christopher M. Healy
      ------------------------
      Name:    Christopher M. Healy
      Address: 86 Bayberry Lane
      Westport, CT  06880

      Facsimile: 203.222.0944
      Telephone: 203.454.4671

      /s/Richard & Ricki Hoffman JTWROS
      ---------------------------------
      Name:    Richard & Ricki Hoffman
               JTWROS
      Address: 1200 Harbor Road
      Hewlett Harbor, New York  11557

      Facsimile: 212.594.0630
      Telephone: 212.594.0707

      /s/ Michael Kooper
      ------------------
      Name:    Michael Kooper
      Address: 770 Lexington Ave., 14th Fl.
      New York, New York  10021

      Facsimile:  212.755.0800
      Telephone:  212.755.0830

                                       16
<PAGE>

                           Counterpart Signature Page

                                   INVESTORS:

The Norman Spivock Trust

By:   /s/ The Norman Spivock Trust - 1993
      -----------------------------------
      Name:    The Norman Spivock Trust-1993
      Title:
      Address: c/o Dragon Capital
      1 Minerva Place
      Old Greenwich, CT  06870

      Facsimile: 212.656.1810
      Telephone: 203.613.4750

Polycom, Inc.

By:   /s/ Michael R. Koury
      --------------------
      Name:    Michael R. Koury
      Title:   CFO
      Address: 1565 Barber Lane
      Milpitas, CA  95035

      Facsimile: 408-474-2955
      Telephone: 408-474-2844

R&G Partners

By:   /s/ Camalyn Randolph and /s/ Josh Gilbert
      -----------------------------------------
      Name:    Camalyn Randolph & Josh Gilbert
      Title:   Partners
      Address: 15456 Coutolene Road
      Magalia, CA  95954

      Facsimile: 530.873.5087
      Telephone: 530.873.5083

                                       17
<PAGE>

                           Counterpart Signature Page

                                   INVESTORS:

Reinhard Stadler Rev. Trust

By:   /s/ Reinhard Stadler Rev. Trust
      -------------------------------
      Name:
      Title:
      Address: Wornser Str. 3
      76185 Karlsruhe  Germany

      Facsimile: 972.765.1138
      Telephone: 214.837.2468

      /s/ Leopold Salkind
      -------------------
      Name:    Leopold Salkind
      Address: 2101 Walnut Street, Apt. 620
      Philadelphia, Pennsylvania  19103

      Facsimile: 215.914.2365
      Telephone: 215.694.4047

The dotCOM Fund, LLC

By:   /s/ Mark Rice
      -------------
      Name:    Mark Rice
      Title:   Manager - Minamax LLC
      Address: 666 Dundee Road, Suite 1901
      Northbrook, Illinois  60062

      Facsimile: 847.509.2295
      Telephone: 847.509.2290

                                       18
<PAGE>

                           Counterpart Signature Page

                                   INVESTORS:

      /s/ Scott Weisman
      -----------------
      Name:    Scott Weisman
      Address: 16 Colonial Road
      White Plains, New York

      Facsimile: 212.856.5750
      Telephone: 212.856.5709

David Wilstein and Susan WIlstein, trustees of
the Century Trust

By:   /s/ David Wilstein
      ----------------------
      Name:    David Wilstein
      Title:   Trustee
      Address: 2080 Century Park East,
      Penthouse Suite
      Los Angeles, CA 90067
      Facsimile: 310.553.0205
      Telephone: 310.553.4906

      /s/ Eric Singer
      ----------------------
      Name:    Eric Singer
      Address: 72 Hicks Street
      Brooklyn, NY 11201
      Facsimile: 212.856.5750
      Telephone: 212.856.5700

      /s/ Gene Salkind
      ----------------------
      Name:    Gene Salkind
      Address: 1165 Wrack Rd.
      Jenkintown, PA 190446-2543
      Facsimile: 215.914.3165
      Telephone: 212.886.8874

      /s/ Robert B. Prag
      ----------------------
      Name:    Robert B. Prag
      Address: 2455 El Amigo Rd.
      Del Mar, CA 92014
      Facsimile: 858.794.9544
      Telephone: 858.794.9500

                                       19<PAGE>

THE SECURITIES REPRESENTED BY THIS WARRANT HAVE NOT BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE
SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE OFFERED FOR SALE,
SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION
STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR
APPLICABLE STATE SECURITIES LAWS, OR AN OPINION OF COUNSEL IN FORM, SUBSTANCE
AND SCOPE REASONABLY ACCEPTABLE TO THE ISSUER THAT REGISTRATION IS NOT REQUIRED
UNDER SAID ACT OR APPLICABLE STATE SECURITIES LAWS OR UNLESS SOLD PURSUANT TO
RULE 144 UNDER SAID ACT. ANY SUCH OFFER, SALE, ASSIGNMENT OR TRANSFER MUST ALSO
COMPLY WITH APPLICABLE STATE SECURITIES LAWS.

                           WIRE ONE TECHNOLOGIES, INC.

                        WARRANT TO PURCHASE COMMON STOCK

Warrant No.:                                     Number of Shares:
             ------------------------                              -------------
Date of Issuance:  June 14, 2000

         Wire One Technologies, Inc., a Delaware corporation (the "COMPANY"),
hereby certifies that, for Ten and 50/100 United States Dollars ($10.50) and
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, _____________________________, the registered holder hereof
or its permitted assigns, is entitled, subject to the terms set forth below, to
purchase from the Company upon surrender of this Warrant, at any time or times
on or after the date hereof, but not after 11:59 P.M. Eastern Time on the
Expiration Date (as defined herein) _______________________ (________) fully
paid and nonassessable shares of Common Stock (as defined herein) of the Company
(the "WARRANT SHARES") at the purchase price per share provided in Section l(b)
below; provided, however, that in no event shall the holder be entitled to
exercise this Warrant for a number of Warrant Shares in excess of that number of
Warrant Shares which, upon giving effect to such exercise, would cause the
aggregate number of shares of Common Stock beneficially owned by the holder and
its affiliates to exceed 4.99% of the outstanding shares of the Common Stock
following such exercise. For purposes of the foregoing proviso, the aggregate
number of shares of Common Stock beneficially owned by the holder and its
affiliates shall include the number of shares of Common Stock issuable upon
exercise of this Warrant with respect to which the determination of such proviso
is being made, but shall exclude shares of Common Stock which would be issuable
upon (i) exercise of the remaining, unexercised Warrants beneficially owned

<PAGE>

by the holder and its affiliates and (ii) exercise or conversion of the
unexercised or unconverted portion of any other securities of the Company
beneficially owned by the holder and its affiliates (including, without
limitation, any convertible notes or preferred stock) subject to a limitation on
conversion or exercise analogous to the limitation contained herein. Except as
set forth in the preceding sentence, for purposes of this paragraph, beneficial
ownership shall be calculated in accordance with Section 13(d) of the Securities
Exchange Act of 1934, as amended. For purposes of this Warrant, in determining
the number of outstanding shares of Common Stock a holder may rely on the number
of outstanding shares of Common Stock as reflected in (1) the Company's most
recent Form 10-Q or Form 10-K, as the case may be, (2) a more recent public
announcement by the Company or (3) any other notice by the Company or its
transfer agent setting forth the number of shares of Common Stock outstanding.
In any case, the number of outstanding shares of Common Stock shall be
determined after giving effect to conversions of Preferred Shares and exercise
of Warrants (as defined below) by such holder and its affiliates since the date
as of which such number of outstanding shares of Common Stock was reported.

         Section 1.

                  (a) Securities Purchase Agreement. This Warrant is one of the
Warrants (the "PREFERRED SHARE WARRANTS") issued pursuant to Section 1 of that
certain Preferred Stock and Warrant Purchase Agreement dated as of June 14,
2000, among the Company and the Buyer referred to therein (the "SECURITIES
PURCHASE AGREEMENT").

                  (b) Definitions. The following words and terms as used in this
Warrant shall have the following meanings:

                           (i) "APPROVED STOCK PLAN" shall mean any employee
         benefit plan which has been approved by the Board of Directors of the
         Company, pursuant to which the Company's securities may be issued to
         any employee, officer, director, consultant or other service provider
         of the Company.

                           (ii) "BUSINESS DAY" means any day other than
         Saturday, Sunday or other day on which commercial banks in the City of
         New York are authorized or required by law to remain closed.

                           (iii) "CERTIFICATE OF DESIGNATION" means the
         Certificate of Designations, Preferences and Rights of Series A
         Preferred Stock of the Company.

                           (iv) "CLOSING BID PRICE" means, for any security as
         of any date, the last closing bid price for such security at 4:00 p.m.
         Eastern Standard Time on the Nasdaq National Market as reported by
         Bloomberg Financial Markets ("Bloomberg"), or, if the Nasdaq National
         Market is not the principal trading market for such security, the last
         closing bid price of such security at 4:00 p.m. Eastern Standard Time
         on the principal securities exchange or trading market where such
         security is listed or traded as reported by Bloomberg, or if the
         foregoing do not apply, the last closing bid price of such security in
         the over the counter market on the electronic bulletin board for such
         security at 4:00 p.m. Eastern Standard Time as reported by Bloomberg,
         or, if no closing bid price is reported for such security by Bloomberg,
         the last closing trade price for such security as

                                       2
<PAGE>

         reported by Bloomberg, or, if no last closing trade price is reported
         for such security by Bloomberg, the average of the bid and ask prices
         of any market makers for such security as reported in the "pink sheets"
         by the National Quotation Bureau, Inc. If the Closing Bid Price cannot
         be calculated for such security on such date on any of the foregoing
         bases, the Closing Bid Price of such security on such date shall be the
         fair market value as determined in good faith by the Board of Directors
         of the Company. (All such determinations to be appropriately adjusted
         for any stock dividend, stock split or other similar transaction during
         such period.)

                           (v) "CLOSING SALE PRICE" means, for any security as
         of any date, the last closing trade price for such security at 4:00
         p.m. Eastern Standard Time on the Nasdaq National Market as reported by
         Bloomberg, or, if the Nasdaq National Market is not the principal
         securities exchange or trading market for such security, the last
         closing trade price of such security at 4:00 p.m. Eastern Standard Time
         on the principal securities exchange or trading market where such
         security is listed or traded as reported by Bloomberg, or if the
         foregoing do not apply, the last closing trade price of such security
         in the over-the-counter market on the electronic bulletin board for
         such security at 4:00 p.m. Eastern Standard Time as reported by
         Bloomberg, or, if no last closing trade price is reported for such
         security by Bloomberg, the closing bid and ask price of such security
         as reported by Bloomberg, or, if no closing ask or bid prices are
         reported for such security by Bloomberg, the average of the bid and ask
         prices of any market makers for such security as reported in the "pink
         sheets" by the National Quotation Bureau, Inc. If the Closing Sale
         Price cannot be calculated for such security on such date on any of the
         foregoing bases, the Closing Sale Price of such security on such date
         shall be the fair market value as determined in good faith by the Board
         of Directors of the Company. (All such determinations to be
         appropriately adjusted for any stock dividend, stock split or other
         similar transaction during such period).

                           (vi) "COMMON STOCK" means (i) the Company's common
         stock, par value $0.0001 per share, and (ii) any capital stock into
         which such Common Stock shall have been changed or any capital stock
         resulting from a reclassification of such Common Stock.

                           (vii) "COMMON STOCK DEEMED OUTSTANDING" means, at any
         given time, the number of shares of Common Stock actually outstanding
         at such time, plus the number of shares of Common Stock deemed to be
         outstanding pursuant to Sections 8(b)(i) and 8(b)(ii) hereof regardless
         of whether the Options (as defined below) or Convertible Securities (as
         defined below) are actually exercisable or convertible at such time,
         but excluding any shares of Common Stock owned or held by or for the
         account of the Company or issuable upon exercise of the Preferred Share
         Warrants.

                           (viii) "CONVERTIBLE SECURITIES" means any stock or
         securities (other than Options) directly or indirectly convertible into
         or exchangeable for Common Stock.

                           (ix) "EXPIRATION DATE" means the date five (5) years
         from the date of this Warrant or, if such date falls on a Saturday,
         Sunday or other day on which banks are required or authorized to be
         closed in the City of New York or the State of New York or

                                       3
<PAGE>

         on which trading does not take place on the principal exchange or
         automated quotation system on which the Common Stock is traded (a
         "HOLIDAY"), the next date that is not a Holiday.

                           (x) "MARKET PRICE" means, with respect to any
         security for any period, the average Closing Bid Price during the 10
         Business Days immediately preceding the date of determination.

                           (xi) "OPTIONS" means any rights, warrants or options
         to subscribe for or purchase Common Stock or Convertible Securities.

                           (xii) "OTHER SECURITIES" means (i) those warrants of
         the Company issued prior to, and outstanding on, the date of issuance
         of this Warrant, (ii) the Preferred Shares and (iii) the shares of
         Common Stock issued upon conversion of the Preferred Shares.

                           (xiii) "PERSON" means an individual, a limited
         liability company, a partnership, a joint venture, a corporation, a
         trust, an unincorporated organization and a government or any
         department or agency thereof.

                           (xiv) "PREFERRED SHARES" means the shares of the
         Company's Series A Preferred Stock issued pursuant to the Securities
         Purchase Agreement.

                           (xv) "SECURITIES ACT" means the Securities Act of
         1933, as amended.

                           (xvi) "WARRANT" means this Warrant and all Warrants
         issued in exchange, transfer or replacement thereof.

                           (xvii) "WARRANT EXERCISE PRICE" shall be equal to,
         with respect to any Warrant Share, $10.50, subject to adjustment as
         hereinafter provided.

                           (xviii) "WARRANT PERIOD" means the period beginning
         on the date hereof and ending on and including the Expiration Date.

                  (c) Other Definitional Provisions.

                           (i) Except as otherwise specified herein, all
         references herein (A) to the Company shall be deemed to include the
         Company's successors and (B) to any applicable law defined or referred
         to herein, shall be deemed references to such applicable law as the
         same may have been or may be amended or supplemented from time to time.

                           (ii) When used in this Warrant, the words "herein,"
         "hereof" and "hereunder," and words of similar import, shall refer to
         this Warrant as a whole and not to any provision of this Warrant, and
         the words "Section," "Schedule," and "Exhibit" shall refer to Sections
         of, and Schedules and Exhibits to, this Warrant unless otherwise
         specified.

                                       4
<PAGE>

                           (iii) Whenever the context so requires, the neuter
         gender includes the masculine or feminine, and the singular number
         includes the plural, and vice versa.

         Section 2. Exercise of Warrant.

                  (a) Subject to the terms and conditions hereof, this Warrant
may be exercised by the holder hereof then registered on the books of the
Company, in whole or in part, at any time on any Business Day on or after the
opening of business on the date hereof and prior to 11:59 P.M. Eastern Time on
the Expiration Date by (i) delivery of a written notice, in the form of the
subscription notice attached as Exhibit A hereto (the "EXERCISE NOTICE"), of
such holder's election to exercise this Warrant, which notice shall specify the
number of Warrant Shares to be purchased, (ii) payment to the Company of an
amount equal to the applicable Warrant Exercise Price multiplied by the number
of Warrant Shares as to which this Warrant is being exercised (plus any
applicable issue or transfer taxes) (the "AGGREGATE EXERCISE PRICE") in cash or
wire transfer of immediately available funds and (iii) the surrender to a common
carrier for overnight delivery to the Company as soon as practicable following
such date, this Warrant (or an indemnification undertaking with respect to this
Warrant in the case of its loss, theft or destruction); provided, that if such
Warrant Shares are to be issued in any name other than that of the registered
holder of this Warrant, such issuance shall be deemed a transfer and the
provisions of Section 7 shall be applicable. In the event of any exercise of the
rights represented by this Warrant in compliance with this Section 2(a), the
Company shall on the third Business Day following the date of receipt of the
Exercise Notice, the Aggregate Exercise Price and this Warrant (or an
indemnification undertaking with respect to this Warrant in the case of its
loss, theft or destruction) (the "EXERCISE DELIVERY DOCUMENTS"), credit such
aggregate number of shares of Common Stock to which the holder shall be entitled
to the holder's or its designee's balance account with The Depository Trust
Company; provided, however, if the holder who submitted the Exercise Notice
requested physical delivery of any or all of the Warrant Shares, then the
Company shall, on or before the third Business Day following receipt of the
Exercise Delivery Documents, issue and surrender to a common carrier for
overnight delivery to the address specified in the Exercise Notice, a
certificate, registered in the name of the holder, for the number of shares of
Common Stock to which the holder shall be entitled pursuant to such request.
Upon delivery of the Exercise Notice and Aggregate Exercise Price referred to in
clause (ii) above or notification to the Company of a Cashless Exercise referred
to in Section 2(e), the holder of this Warrant shall be deemed for all corporate
purposes to have become the holder of record of the Warrant shares, with respect
to which this Warrant has been exercised, irrespective of the date of delivery
of this Warrant as required by clause (iii) above or the certificates evidencing
such Warrant Shares. In the case of a dispute as to the determination of the
Warrant Exercise Price, the last reported sale price (as reported by Bloomberg)
or the Market Price of a security or the arithmetic calculation of the Warrant
Shares, the Company shall promptly issue to the holder the number of shares of
Common Stock that is not disputed and shall submit the disputed determinations
or arithmetic calculations to the holder via facsimile within one (1) Business
Day of receipt of the holder's subscription notice. If the holder and the
Company are unable to agree upon the determination of the Warrant Exercise
Price, the last reported sale price (as reported by Bloomberg) or Market Price
or arithmetic calculation of the Warrant Shares within one day of such disputed
determination or arithmetic calculation being submitted to the holder, then the
Company shall immediately submit via facsimile (i) the disputed determination of
the Warrant Exercise Price, the last reported sale price (as reported by

                                       5
<PAGE>

Bloomberg) or the Market Price to an independent, reputable investment banking
firm or (ii) the disputed arithmetic calculation of the Warrant Shares to its
independent, outside accountant. The Company shall cause the investment banking
firm or the accountant, as the case may be, to perform the determinations or
calculations and notify the Company and the holder of the results no later than
five (5) Business Days from the time it receives the disputed determinations or
calculations. Such investment banking firm's or accountant's determination or
calculation, as the case may be, shall be deemed conclusive absent manifest
error.

                  (b) Unless the rights represented by this Warrant shall have
expired or shall have been fully exercised, the Company shall, as soon as
practicable and in no event later than five (5) Business Days after any exercise
and at its own expense, issue a new Warrant identical in all respects to this
Warrant exercised except it shall represent rights to purchase the number of
Warrant Shares purchasable immediately prior to such exercise under this Warrant
exercised, less the number of Warrant Shares with respect to which such Warrant
is exercised.

                  (c) No fractional shares of Common Stock are to be issued upon
the exercise of this Warrant, but rather the number of shares of Common Stock
issued upon exercise of this Warrant shall be rounded up or down to the nearest
whole number.

                  (d) Notwithstanding anything contained herein to the contrary
and in addition to and not in lieu of any of the other rights and remedies to
which the holder may be entitled by reason of the Company's failure fully to
meet its obligations under the Securities Purchase Agreement or the Registration
Rights Agreement, the holder of this Warrant may, at its election exercised in
its sole discretion, exercise this Warrant in whole or in part and, in lieu of
making the cash payment otherwise contemplated to be made to the Company upon
such exercise in payment of the Aggregate Exercise Price, elect instead to
receive upon such exercise the "Net Number" of shares of Common Stock determined
according to the following formula (a "CASHLESS EXERCISE") :

      Net Number = (A x B) - (A x C)
                   -----------------
                           B

         For purposes of the foregoing formula:

                  A=the total number shares with respect to
                  which this Warrant is then being exercised.

                  B=the last reported sale price (as reported
                  by Bloomberg) of the Common Stock on the date
                  immediately preceding the date of the subscription
                  notice.

                  C =the Warrant Exercise Price then in effect
                  for the applicable Warrant Shares at the time
                  of such exercise.

         Section 3. Covenants as to Common Stock. The Company hereby covenants
and agrees as follows:

                                       6
<PAGE>

                  (a) This Warrant is, and any Warrants issued in substitution
for or replacement of this Warrant will upon issuance be, duly authorized and
validly issued.

                  (b) All Warrant Shares which may be issued upon the exercise
of the rights represented by this Warrant will, upon issuance, be validly
issued, fully paid and nonassessable and free from all taxes, liens and charges
with respect to the issue thereof.

                  (c) During the period within which the rights represented by
this Warrant may be exercised, the Company will at all times have authorized and
reserved the number of shares of Common Stock needed to provide for the exercise
of the rights then represented by this Warrant.

                  (d) The Company shall promptly secure the listing of the
shares of Common Stock issuable upon exercise of this Warrant upon each national
securities exchange or automated quotation system, if any, upon which shares of
Common Stock are then listed (subject to official notice of issuance upon
exercise of this Warrant) and shall maintain, so long as any other shares of
Common Stock shall be so listed, such listing of all shares of Common Stock from
time to time issuable upon the exercise of this Warrant; and the Company shall
so list on each national securities exchange or automated quotation system, as
the case may be, and shall maintain such listing of, any other shares of capital
stock of the Company issuable upon the exercise of this Warrant if and so long
as any shares of the same class shall be listed on such national securities
exchange or automated quotation system.

                  (e) The Company will not, by amendment of its Certificate of
Incorporation or through any reorganization, transfer of assets, consolidation,
merger, dissolution, issuance or sale of securities, or any other voluntary
action, avoid or seek to avoid the observance or performance of any of the terms
to be observed or performed by it hereunder, but will at all times in good faith
assist in the carrying out of all the provisions of this Warrant and in the
taking of all such action as may reasonably be requested by the holder of this
Warrant in order to protect the exercise privilege of the holder of this Warrant
against dilution or other impairment, consistent with the tenor and purpose of
this Warrant. No impairment of the designations, preferences and rights of the
Preferred Shares contained in the Certificate of Designation or any waiver
thereof which has an adverse effect on the rights granted hereunder shall be
given effect until the Company has taken appropriate action (satisfactory to the
holders of Preferred Share Warrants representing a majority of the shares of
Common Stock issuable upon the exercise of such Preferred Share Warrants then
outstanding) to avoid such adverse effect with respect to this Warrant.

                  (f) This Warrant will be binding upon any entity succeeding to
the Company by merger, consolidation or acquisition of all or substantially all
of the Company's assets.

         Section 4. Taxes. Company shall pay any and all taxes which may be
payable with respect to the issuance and delivery of Warrant Shares upon
exercise of this Warrant; provided, however, that the Company shall not be
required to pay any tax that may be payable in respect of any transfer involved
in the issue or delivery of Common Stock or other securities or property in a
name other than that of the registered holders of this Warrant to be converted
and such holder shall pay such amount, if any, to cover any applicable transfer
or similar tax.

                                       7
<PAGE>

         Section 5. Warrant Holder Not Deemed a Stockholder. Except as otherwise
specifically provided herein, no holder, as such, of this Warrant shall be
entitled to vote or receive dividends or be deemed the holder of shares of the
Company for any purpose, nor shall anything contained in this Warrant be
construed to confer upon the holder hereof, as such, any of the rights of a
stockholder of the Company or any right to vote, give or withhold consent to any
corporate action (whether any reorganization, issue of stock, reclassification
of stock, consolidation, merger, conveyance or otherwise), receive notice of
meetings, receive dividends or subscription rights, or otherwise, prior to the
issuance to the holder of this Warrant of the Warrant Shares which he or she is
then entitled to receive upon the due exercise of this Warrant. In addition,
nothing contained in this Warrant shall be construed as imposing any liabilities
on such holder to purchase any securities (upon exercise of this Warrant or
otherwise) or as a stockholder of the Company, whether such liabilities are
asserted by the Company or by creditors of the Company. Notwithstanding this
Section 5, the Company will provide the holder of this Warrant with copies of
the same notices and other information given to the stockholders of the Company
generally, contemporaneously with the giving thereof to the stockholders.

         Section 6. Representations of Holder. The holder of this Warrant, by
the acceptance hereof, represents that it is acquiring this Warrant and the
Warrant Shares for its own account for investment only and not with a view
towards, or for resale in connection with, the public sale or distribution of
this Warrant or the Warrant Shares, except pursuant to sales registered or
exempted under the Securities Act; provided, however, that by making the
representations herein, the holder does not agree to hold this Warrant or any of
the Warrant Shares for any minimum or other specific term and reserves the right
to dispose of this Warrant and the Warrant Shares at any time in accordance with
or pursuant to a registration statement or an exemption under the Securities
Act. The holder of this Warrant further represents, by acceptance hereof, that,
as of this date, such holder is an "accredited investor" as such term is defined
in Rule 501(a)(1) of Regulation D promulgated by the Securities and Exchange
Commission under the Securities Act (an "ACCREDITED INVESTOR"). Upon exercise of
this Warrant, other than pursuant to a Cashless Exercise, the holder shall, if
requested by the Company, confirm in writing, in a form satisfactory to the
Company, that the Warrant Shares so purchased are being acquired solely for the
holder's own account and not as a nominee for any other party, for investment
and not with a view toward distribution or resale and that such holder is an
Accredited Investor. If such holder cannot make such representations because
they would be factually incorrect, it shall be a condition to such holder's
exercise of this Warrant that the Company receive such other representations as
the Company considers reasonably necessary to assure the Company that the
issuance of its securities upon exercise of this Warrant shall not violate any
United States or state securities laws.

         Section 7. Ownership and Transfer.

                  (a) The Company shall maintain at its principal executive
offices (or such other office or agency of the Company as it may designate by
notice to the holder hereof), a register for this Warrant, in which the Company
shall record the name and address of the person in whose name this Warrant has
been issued, as well as the name and address of each transferee. The Company may
treat the person in whose name any Warrant is registered on the register as the
owner and holder thereof for all purposes, notwithstanding any notice to the
contrary.

                                       8
<PAGE>

                  (b) This Warrant and the rights granted hereunder shall be
assignable by the holder hereof without the consent of the Company.

                  (c) The Company is obligated to register the Warrant Shares
for resale under the Securities Act pursuant to the Registration Rights
Agreement dated June 14, 2000 by and between the Company and the Investors set
forth therein (the "REGISTRATION RIGHTS AGREEMENT"), and the initial holder of
this Warrant (and certain assignees thereof) is entitled to the registration
rights in respect of the Warrant Shares as set forth in the Registration Rights
Agreement.

         Section 8. Adjustment of Warrant Exercise Price and Number of Shares.
The Warrant Exercise Price and the number of shares of Common Stock issuable
upon exercise of this Warrant shall be adjusted from time to time as follows:

                  (a) Adjustment of Warrant Exercise Price and Number of Shares
upon Issuance of Common Stock. If and whenever on or after the date of issuance
of this Warrant, the Company issues or sells, or is deemed to have issued or
sold, any shares of Common Stock (other than shares of Common Stock deemed to
have been issued by the Company in connection with an Approved Stock Plan or
upon exercise or conversion of the Other Securities) for a consideration per
share less than a price (the "APPLICABLE PRICE") equal to the Warrant Exercise
Price in effect immediately prior to such issuance or sale, then immediately
after such issuance or sale the Warrant Exercise Price then in effect shall be
reduced to an amount equal to the product of (x) the Warrant Exercise Price in
effect immediately prior to such issuance or sale and (y) the quotient
determined by dividing (1) the sum of (I) the product of the Applicable Price
and the number of shares of Common Stock Deemed Outstanding immediately prior to
such issuance or sale, and (II) the consideration, if any, received by the
Company upon such issuance or sale, by (2) the product of (I) the Applicable
Price and (II) the number of shares of Common Stock Deemed Outstanding
immediately after such issuance or sale. Upon each such adjustment of the
Warrant Exercise Price hereunder, the number of shares of Common Stock
acquirable upon exercise of this Warrant shall be adjusted to the number of
shares determined by multiplying the Warrant Exercise Price in effect
immediately prior to such adjustment by the number of shares of Common Stock
acquirable upon exercise of this Warrant immediately prior to such adjustment
and dividing the product thereof by the Warrant Exercise Price resulting from
such adjustment.

                  (b) Effect on Warrant Exercise Price of Certain Events. For
purposes of determining the adjusted Warrant Exercise Price under Section 8(a)
above, the following shall be applicable:

                           (i) Issuance of Options. If the Company in any manner
         grants any Options and the lowest price per share for which one share
         of Common Stock is issuable upon the exercise of any such Option or
         upon conversion or exchange of any Convertible Securities issuable upon
         exercise of any such Option is less than the Applicable Price, then
         such share of Common Stock shall be deemed to be outstanding and to
         have been issued and sold by the Company at the time of the granting or
         sale of such Option for such price per share. For purposes of this
         Section 8(b)(i), the "lowest price per share for which one share of
         Common Stock is issuable upon exercise of such Options or upon
         conversion or exchange of such Convertible Securities "shall be equal
         to the sum of the

                                       9
<PAGE>

         lowest amounts of consideration (if any) received or receivable by the
         Company with respect to any one share of Common Stock upon the granting
         or sale of the Option, upon exercise of the Option and upon conversion
         or exchange of any Convertible Security issuable upon exercise of such
         Option. No further adjustment of the Warrant Exercise Price shall be
         made upon the actual issuance of such Common Stock or of such
         Convertible Securities upon the exercise of such Options or upon the
         actual issuance of such Common Stock upon conversion or exchange of
         such Convertible Securities. Upon the expiration or termination of any
         unexercised Option, such Warrant Exercise Price shall be readjusted to
         such amount as would have obtained had the adjustment made upon the
         granting or issuance of such Option been made based upon the issuance
         of only the number of shares of Common Stock actually issued on
         exercise of such Option. Notwithstanding the foregoing, no adjustment
         shall be made pursuant to this Section 8(b)(i) to the extent that such
         adjustment is based solely on the fact that the Convertible Securities
         issuable upon exercise of such Option are convertible into or
         exchangeable for Common Stock at a price which varies with the market
         price of the Common Stock.

                           (ii) Issuance of Convertible Securities. If the
         Company in any manner issues or sells any Convertible Securities and
         the lowest price per share for which one share of Common Stock is
         issuable upon such conversion or exchange thereof is less than the
         Applicable Price, then such share of Common Stock shall be deemed to be
         outstanding and to have been issued and sold by the Company at the time
         of the issuance or sale of such Convertible Securities for such price
         per share. For the purposes of this Section 8(b)(ii), the "lowest price
         per share for which one share of Common Stock is issuable upon such
         conversion or exchange "shall be equal to the sum of the lowest amounts
         of consideration (if any) received or receivable by the Company with
         respect to one share of Common Stock upon the issuance or sale of the
         Convertible Security and upon conversion or exchange of such
         Convertible Security. No further adjustment of the Warrant Exercise
         Price shall be made upon the actual issuance of such Common Stock upon
         conversion or exchange of such Convertible Securities, and if any such
         issuance or sale of such Convertible Securities is made upon exercise
         of any Options for which adjustment of the Warrant Exercise Price had
         been or are to be made pursuant to other provisions of this Section
         8(b), no further adjustment of the Warrant Exercise Price shall be made
         by reason of such issuance or sale. Upon the expiration of any rights
         of conversion or exchange under such Convertible Securities, such
         Warrant Exercise Price shall be readjusted to such amount as would have
         obtained had the adjustment made upon the granting or issuance of such
         Convertible Securities been made based upon the issuance of only the
         number of shares of Common Stock actually issued on conversion of such
         Convertible Securities. Notwithstanding the foregoing, no adjustment
         shall be made pursuant to this Section 8(b)(ii) to the extent that such
         adjustment is based solely on the fact that such Convertible Securities
         are convertible into or exchangeable for Common Stock at a price which
         varies with the market price of the Common Stock.

                           (iii) Change in Option Price or Rate of Conversion.
         If the purchase price provided for in any Options, the additional
         consideration, if any, payable upon the issuance, conversion or
         exchange of any Convertible Securities, or the rate at which any
         Convertible Securities are convertible into or exchangeable for Common
         Stock changes at any time, the Warrant Exercise Price in effect at the
         time of such change shall be

                                       10
<PAGE>

         adjusted to the Warrant Exercise Price which would have been in effect
         at such time had such Options or Convertible Securities provided for
         such changed purchase price, additional consideration or changed
         conversion rate, as the case may be, at the time initially granted,
         issued or sold and the number of shares of Common Stock acquirable
         hereunder shall be correspondingly readjusted. For purposes of this
         Section 8(b)(iii), if the terms of any Option or Convertible Security
         that was outstanding as of the date of issuance of this Warrant are
         changed in the manner described in the immediately preceding sentence,
         then such Option or Convertible Security and the Common Stock deemed
         issuable upon exercise, conversion or exchange thereof shall be deemed
         to have been issued as of the date of such change.

                  (c) Adjustment of Warrant Exercise Price upon Subdivision or
Combination of Common Stock. If the Company at any time after the date of
issuance of this Warrant subdivides (by any stock split, stock dividend,
recapitalization or otherwise) one or more classes of its outstanding shares of
Common Stock into a greater number of shares, any Warrant Exercise Price in
effect immediately prior to such subdivision will be proportionately reduced and
the number of shares of Common Stock obtainable upon exercise of this Warrant
will be proportionately increased. If the Company at any time after the date of
issuance of this Warrant combines (by combination, reverse stock split or
otherwise) one or more classes of its outstanding shares of Common Stock into a
smaller number of shares, any Warrant Exercise Price in effect immediately prior
to such combination will be proportionately increased and the number of shares
of Common Stock obtainable upon exercise of this Warrant will be proportionately
decreased. Any adjustment under this Section 8(d) shall become effective at the
close of business on the date the subdivision or combination becomes effective.
If, at any time or from time to time, the number of shares of Common Stock
outstanding is increased by a stock dividend payable in shares of Common Stock
or any Convertible Securities, then, following the record date fixed for the
determination of holders of Common Stock entitled to receive such stock
dividend, a provision shall be made so that the Holder of this Warrant shall
receive upon exercise thereof in addition to the number of shares of Common
Stock receivable thereupon, the amount of securities of the Company that it
would have received if (A) this Warrant had been exercised into Common Stock on
the date of such event and (B) it had thereafter retained such securities and
all rights and distributions relating to them.

                  (d) Minimum Adjustment of Warrant Exercise Price. No
adjustment of the Warrant Exercise Price shall be made under this Section 8 in
an amount of less than 1% of the Warrant Exercise Price in effect at the time
such adjustment is otherwise required to be made, but any such lesser adjustment
shall be carried forward and shall be made at the time and together with the
next subsequent adjustment which, together with any adjustments so carried
forward, shall amount to not less than 1% of such Warrant Exercise Price. No
adjustments shall be made pursuant to this Section 8 which would result in an
increase in the Warrant Exercise Price.

                  (e) Certain Events. If any event occurs of the type
contemplated by the provisions of this Section 8 but not expressly provided for
by such provisions (including, without limitation, the granting of stock
appreciation rights, phantom stock rights or other rights with equity features),
then the Company's Board of Directors will make an appropriate adjustment in the
Warrant Exercise Price and the number of shares of Common Stock obtainable upon
exercise of this Warrant so as to protect the rights of the holders of the
Preferred Share Warrants;

                                       11
<PAGE>

provided that no such adjustment will increase the Warrant Exercise Price or
decrease the number of shares of Common Stock obtainable as otherwise determined
pursuant to this Section 8.

                  (f) Notices.

                           (i) Immediately upon any adjustment of a Warrant
         Exercise Price, the Company will give written notice thereof to the
         holder of this Warrant, setting forth in reasonable detail, and
         certifying, the calculation of such adjustment.

                           (ii) The Company will give written notice to the
         holder of this Warrant at least ten (10) days prior to the date on
         which the Company closes its books or takes a record (A) with respect
         to any dividend or distribution upon the Common Stock, (B) with respect
         to any pro rata subscription offer to holders of Common Stock or (C)
         for determining rights to vote with respect to any Organic Change (as
         defined below), dissolution or liquidation, provided that such
         information shall be made known to the public prior to or in
         conjunction with such notice being provided to such holder. Any
         recapitalization, reorganization, reclassification, consolidation,
         merger, sale of all or substantially all of the Company's assets to
         another Person or other transaction in each case which is effected in
         such a way that holders of Common Stock are entitled to receive (either
         directly or upon subsequent liquidation) stock, securities or assets
         with respect to or in exchange for Common Stock is referred to herein
         as an "ORGANIC CHANGE."

                           (iii) The Company will also give written notice to
         the holder of this Warrant at least ten (10) days prior to the date on
         which any Organic Change, dissolution or liquidation will take place,
         provided that such information shall be made known to the public prior
         to or in conjunction with such notice being provided to such holder.

         Section 9. Redemption.

                  (a) On not less than thirty (30) days notice given at any time
when the registration statement covering the resale of the shares of Common
Stock issuable upon exercise of the Warrant required to be filed by the Company
pursuant to Registration Rights Agreement is effective and which shall remain
effective during such 30 day notice period, the Warrants may be redeemed, at the
option of the Company, at a redemption price of $0.10 per Warrant, provided the
Closing Sale Price of the Common Stock issuable upon exercise of this Warrant
shall equal or exceed 200% of the then Exercise Price for a period of twenty
(20) consecutive trading days ending at least three (3) days prior to the date
of the notice of redemption.

                  (b) If the conditions set forth in Section 9(a) are met, and
the Company elects to exercise its right to redeem the Warrants, it shall mail a
notice of redemption to each of the registered holders of the Warrants to be
redeemed, first class, postage prepaid, not later than the thirtieth day before
the date fixed for redemption, at their last address as shall appear on the
records maintained pursuant to Section 12. Any notice mailed in the manner
provided herein shall be conclusively presumed to have been duly given whether
or not the registered holder receives such notice.

                                       12
<PAGE>

                  (c) The notice of redemption shall specify (i) the redemption
price, (ii) the date fixed for redemption, and (iii) that the right to exercise
the Warrant shall terminate at 5:00 P.M. (New York time) on the business day
immediately preceding the date fixed for redemption. The date fixed for the
redemption of the Warrant shall be the "REDEMPTION DATE." No failure to mail
such notice nor any defect therein or in the mailing thereof shall affect the
validity of the proceedings for such redemption except as to a registered holder
(A) to whom notice was not mailed or (B) whose notice was defective. An
affidavit of the warrant agent or of the Secretary or an Assistant Secretary of
the Company that notice of redemption has been mailed shall, in the absence of
fraud, be prima facie evidence of the facts stated therein.

                  (d) Any right to exercise a Warrant shall terminate at 5:00
P.M. (New York time) on the business day immediately preceding the Redemption
Date. On and after the Redemption Date, holders of the Warrants shall have no
further rights except to receive, upon surrender of the Warrant, the redemption
price.

                  (e) From and after the Redemption Date specified, the Company
shall, at the place specified in the notice of redemption, upon presentation and
surrender to the Company by or on behalf of the registered holder thereof of one
or more Warrant Certificates evidencing Warrants to be redeemed, deliver or
cause to be delivered to or upon the written order of such Holder a sum in cash
equal to the redemption price of each such Warrant. From and after the
Redemption Date and upon the deposit or setting aside by the Company of a sum
sufficient to redeem all the Warrants called for redemption, such Warrants shall
expire and become void and all rights hereunder and under the Warrant
Certificates, except the right to receive payment of the redemption price, shall
cease.

         Section 10. Lost, Stolen, Mutilated or Destroyed Warrant. If this
Warrant is lost, stolen, mutilated or destroyed, the Company shall, on receipt
of an indemnification undertaking (or, in the case of a mutilated Warrant, the
Warrant), issue a new Warrant of like denomination and tenor as this Warrant so
lost, stolen, mutilated or destroyed.

         Section 11. Notice. Any notices, consents, waivers or other
communications required or permitted to be given under the terms of this Warrant
must be in writing and will be deemed to have been delivered: (i) upon receipt,
when delivered personally; (ii) upon receipt, when sent by facsimile (provided
confirmation of transmission is mechanically or electronically generated and
kept on file by the sending party) ; or (iii) one Business Day after deposit
with a nationally recognized overnight delivery service, in each case properly
addressed to the party to receive the same. The addresses and facsimile numbers
for such communications shall be:

                                       13
<PAGE>

                  If to the Company:

                  Wire One Technologies, Inc.
                  225 Long Avenue
                  Hillside, New Jersey 07205
                  Telephone: (973) 282-2000
                  Facsimile: (973) 282-2033
                  Attention:  President

                  With a copy to:

                  Morrison & Foerster LLP
                  1290 Avenue of the Americas
                  New York, NY 10104
                  Telephone: (212) 468-8000
                  Facsimile: (212) 468-7900
                  Attention:  Michael J.W. Rennock, Esq.

If to the holder: To the address set forth above immediately below such holder's
name on the signature pages in the Securities Purchase Agreement.

Each party shall provide five days' prior written notice to the other party of
any change in address or facsimile number. Written confirmation of receipt (A)
given by the recipient of such notice, consent, waiver or other communication,
(B) mechanically or electronically generated by the sender's facsimile machine
containing the time, date, recipient facsimile number and an image of the first
page of such transmission or (C) provided by a nationally recognized overnight
delivery service shall be rebuttable evidence of personal service, receipt by
facsimile or receipt from a nationally recognized overnight delivery service in
accordance with clause (i), (ii) or (iii) above, respectively.

         Section 12. Date. The date of this Warrant is June 14, 2000. This
Warrant, in all events, shall be wholly void and of no effect after the close of
business on the Expiration Date, except that notwithstanding any other
provisions hereof, the provisions of Section 7 shall continue in full force and
effect after such date as to any Warrant Shares or other securities issued upon
the exercise of this Warrant.

         Section 13. Amendment and Waiver. Except as otherwise provided herein,
the provisions of the Preferred Share Warrants may be amended and the Company
may take any action herein prohibited, or omit to perform any act herein
required to be performed by it, only if the Company has obtained the written
consent of the holders of Preferred Share Warrants representing a majority of
the shares of Common Stock obtainable upon exercise of the Preferred Share
Warrants then outstanding; provided that no such action may increase the Warrant
Exercise Price of the Preferred Share Warrants or decrease the number of shares
or class of stock obtainable upon exercise of any Preferred Share Warrant
without the written consent of the holder of such Preferred Share Warrant.

         Section 14. Descriptive Headings; Governing Law. The descriptive
headings of the several Sections and paragraphs of this Warrant are inserted for
convenience only and do not

                                       14
<PAGE>

constitute a part of this Warrant. The corporate laws of the State of Delaware
shall govern all issues concerning the relative rights of the Company and its
stockholders. All other questions concerning the construction, validity,
enforcement and interpretation of this Warrant shall be governed by the internal
laws of the State of New York, without giving effect to any choice of law or
conflict of law provision or rule (whether of the State of New York, or any
other jurisdictions) that would cause the application of the laws of any
jurisdictions other than the State of New York.

                                     WIRE ONE TECHNOLOGIES, INC.

                                     By:
                                         ---------------------------------------
                                         Rich Reiss
                                         President and Chief Executive Officer

                                       15
<PAGE>

                              EXHIBIT A TO WARRANT

                                SUBSCRIPTION FORM

        TO BE EXECUTED BY THE REGISTERED HOLDER TO EXERCISE THIS WARRANT

                           WIRE ONE TECHNOLOGIES, INC.

         The undersigned holder hereby exercises the right to purchase
_____________________ (_______) of the shares of Common Stock ("WARRANT SHARES")
of Wire One Technologies, Inc., a Delaware corporation (the "COMPANY"),
evidenced by the attached Warrant (the "WARRANT"). Capitalized terms used herein
and not otherwise defined shall have the respective meanings set forth in the
Warrant.

         1. Form of Warrant Exercise Price. The Holder intends that payment of
the Warrant Exercise Price shall be made as :

            ___________    a "Cash  Exercise" with respect to  _____________
                           Warrant  Shares; and/or

            ___________    a "Cashless  Exercise" with respect to  ___________
                           Warrant Shares (to the extent permitted by the
                           terms of the Warrant).

         2. Payment of Warrant Exercise Price. The holder shall pay the sum of
$________ to the Company in accordance with the terms of the Warrant.

         3. Delivery of Warrant Shares. The Company shall deliver to the holder
_________ Warrant Shares in accordance with the terms of the Warrant.

Date: ___________ _, ____

------------------------------------
Name of Registered Holder

By:
    ----------------------------------------------
    Name:
    Title:

<PAGE>

                              EXHIBIT B TO WARRANT

                              FORM OF WARRANT POWER

FOR VALUE RECEIVED, the undersigned does hereby assign and transfer to
___________, Federal Identification No. _____________, a warrant to purchase
____________ shares of the capital stock of Wire One Technologies, Inc., a
Delaware corporation, represented by warrant certificate no. _________, standing
in the name of the undersigned on the books of said corporation. The undersigned
does hereby irrevocably constitute and appoint ___________, attorney to transfer
the warrants of said corporation, with full power of substitution in the
premises.

Dated: ______, _____

                                    [HOLDER]

                                    By:
                                         --------------------------------------
                                    Its:
                                         --------------------------------------

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