Document:

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                                                                    Exhibit 10.2

           THIS NOTE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT

              OF 1933 AND MAY NOT BE SOLD, TRANSFERRED OR OTHERWISE

                  DISPOSED OF UNLESS REGISTERED UNDER THAT ACT

                 OR AN EXEMPTION FROM REGISTRATION IS AVAILABLE.

                                 IFX CORPORATION

                           CONVERTIBLE PROMISSORY NOTE

$145,000.00                                              Dated: October 31, 2002

          FOR VALUE RECEIVED IFX CORPORATION, a Delaware corporation (the
"Company"), hereby promises to pay to UBS Capital LLC, a Delaware limited
liability company, (the "Payee"), or its registered assigns, the principal
amount of One Hundred Forty-five Thousand and 00/100 Dollars ($145,000.00 )
together with interest thereon calculated from the date hereof in accordance
with the provisions of this Convertible Promissory Note (the "Convertible
Note").

          Certain capitalized terms are defined in Section 8 hereof.

          1. Interest Rate. Interest shall accrue at a rate equal to ten percent
(10%) per annum (the "Interest Rate") on the unpaid principal amount of this
Convertible Note outstanding from time to time; provided that so long as any
Event of Default has occurred and is continuing, interest shall accrue to the
extent permitted by law at the rate of the Interest Rate plus two percent (2%)
per annum on the unpaid principal amount of this Convertible Note outstanding
from time to time for the period beginning on the date on which such Event of
Default occurs and ending on the date on which such Event of Default ceases to
exist. Interest shall be computed on the basis of the actual number of days
elapsed and a 360-day year.

          2. Maturity Date. Notwithstanding Section 3 below, the entire
principal amount of this Convertible Note and all accrued but unpaid interest
thereon shall be due and payable in full in cash in immediately available funds
on September 30, 2007 (the "Maturity Date"). Any overdue principal and overdue
interest together with any interest thereon, shall be due and payable upon
demand.

          3. Conversion.

          (a) Subject to a Forced Payee D Election described below, at the
election of the Payee (the "Payee D Election") at any time prior to the Maturity
Date, all of the principal amount of this Convertible Note plus accrued and
unpaid interest thereon may be converted into shares of the Series D Preferred
Stock at a conversion price equal to $1.20 per share (as adjusted for stock
splits, combinations, stock dividends and the like) of Series D Preferred Stock
(the

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"Series D Conversion Price"). The Series D Preferred Stock to be issued upon any
such conversion shall have the same rights, preferences and privileges as the
shares of the Series D Preferred Stock issued in the Series D Financing. The
Payee, upon making such conversion, and as a condition thereof, shall enter into
a registration rights agreement and shareholders agreement substantially in the
form of the Third Amended and Restated Registration Rights Agreement and the
Fourth Amended and Restated Stockholders Agreement among the Company and the
holders of the Series D Preferred Stock, if the Payee is not already a party to
any of such agreements. No fractional shares shall be issued upon a conversion
into Series D Preferred Stock. In lieu of any fractional shares to which Payee
would otherwise be entitled, the Company shall pay cash equal to such fraction
multiplied by the Series D Conversion Price. In the event that the Payee does
not own Company Common Stock at the time of the conversion to Series D Preferred
Stock pursuant to this section, then in lieu of the "common to preferred"
conversion right provided under the terms of the Series D Financing, and in
addition to the shares of Series D Preferred Stock issuable as provided above,
Payee shall receive 0.0342 shares of Series D Preferred Stock for each dollar of
Convertible Note plus accrued and unpaid interest converted pursuant hereto. In
the event that Convertible Noteholders holding a majority of the outstanding
principal amount of the Convertible Notes elect to make a Payee D Election, then
all of the Convertible Noteholders who have not otherwise voluntarily made a
Payee D Election shall be deemed to have automatically made a Payee D Election
on the first date that a majority of Convertible Noteholders holding a majority
of the Convertible Notes shall have made a Payee D Election (the "Forced Payee D
Election").

          (b) In the event that the Company enters into a Qualified Financing
Purchase Agreement prior to the Maturity Date (the date thereof being the
"Qualified Financing Date"), then, subject to a Forced Payee F Election
described below, at the election of the Payee (the "Payee F Election"), this
Convertible Note plus accrued and unpaid interest thereon may be converted, in
whole and not in part, into Qualified Financing Securities at a conversion price
equal to the purchase price per Qualified Financing Security set forth in the
Qualified Financing Purchase Agreement (the "Qualified Financing Conversion
Price"). The Company shall provide Payee timely notice of the Qualified
Financing Date, and Payee shall make the Payee F Election within ten (10)
business days of receiving such notice. The Payee, upon making such conversion,
and as a condition thereof, shall enter into any registration rights agreement,
shareholders agreement or other material agreements entered into by other
investors in the Qualified Financing. In the event that Convertible Noteholders
holding a majority of the outstanding principal amount of the Convertible Notes
elect to make a Payee F Election, then all of the Convertible Noteholders who
have not otherwise voluntarily made a Payee F Election shall be deemed to have
automatically made a Payee F Election on the first date that a majority of
Convertible Noteholders holding a majority of the Convertible Notes shall have
made a Payee F Election (the "Forced Payee F Election").

          (c) At such time as a conversion under this Section 3 has been
effected, the rights of the holder of this Convertible Note as the holder of
such note shall cease, and the Person or Persons in whose name or names any
certificate or certificates for shares of the Series D Preferred Stock or
Qualified Financing Securities, as the case may be, are to be issued upon such
conversion shall be deemed to have become the holder or holders of record of the
shares of such Series D Preferred Stock or Qualified Financing Securities
represented thereby.

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          (d) The Company shall deliver to the converting holder a certificate
or certificates representing the number of shares of Series D Preferred Stock or
Qualified Financing Securities, as the case may be, issuable by reason of such
conversion in such name or names and such denomination or denominations as the
converting holder has specified.

          (e) The issuance of certificates for shares of Series D Preferred
Stock or Qualified Financing Securities, as the case may be, upon conversion of
this Convertible Note shall be made without charge to the holder hereof for any
issuance tax in respect thereof or other cost incurred by the Company in
connection with such conversion and the related issuance of shares of Series D
Preferred Stock or Qualified Financing Securities, provided that such holder
shall pay any transfer taxes associated therewith.

          (f) The Company shall at all times reserve and keep available out of
its authorized but unissued shares of Series D Preferred Stock or Qualified
Financing Securities, as the case may be, solely for the purpose of issuance
upon conversion hereunder, such number of shares of Series D Preferred Stock or
Qualified Financing Securities issuable upon conversion, or, if an adequate
number of shares of Series D Preferred Stock or Qualified Financing Securities
have not previously been authorized, the Company shall authorize additional
shares of Series D Preferred Stock or Qualified Financing Securities The Company
shall not designate or authorize any additional classes of Preferred Stock if
such authorization or designation would preclude the Company from authorizing
and issuing the Series D Preferred Stock or the Qualified Financing Securities.
All such securities which are so issuable shall, when issued, be duly and
validly issued, fully paid and nonassessable and free from all taxes, liens and
charges (other than the applicable shareholders agreement and securities laws).
The Company shall take all such actions as may be necessary to assure that all
such securities may be so issued without violation of any applicable law or
governmental regulation or any requirements of any domestic securities exchange
upon which such shares of capital stock may be listed; provided, that in no
event will the Company be obligated to register Series D Preferred Stock or
Qualified Financing Securities under the Securities Act of 1933.

          (g) Capital Stock

               (i) On the date hereof, the authorized capital stock of the
Company consists of (1) 110,000,000 shares of Common Stock, of which 11,963,399
shares of Common Stock are issued and outstanding, and (2) 40,000,000 shares of
Preferred Stock, of which (w) 2,030,869 shares of Preferred Stock have been
designated as Series A Convertible Preferred Stock, all of which shares are
issued and outstanding; (x) 4,842,397 shares of Preferred Stock have been
designated Series B Convertible Preferred Stock, 4,418,262 of which shares are
issued and outstanding; (y) 3,126,241 shares of Preferred Stock have been
designated as Series C Preferred Stock, all of which shares are issued and
outstanding, and (z) 8,509,675 shares of Series D Preferred Stock, of which
6,432,608 are issued and outstanding.

               (ii) On the date hereof, 43,639,400 shares of Common Stock are
reserved for issuance upon the exercise of options, warrants and convertible
preferred stock.

          4. Method of Payments.

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          (a) Payment. Except in the event of an earlier conversion pursuant to
Section 3 hereof or an acceleration pursuant to Section 7 hereof,
notwithstanding anything contained elsewhere in this Convertible Note to the
contrary, the Company will pay all sums for principal, interest, premiums,
dividends or otherwise becoming due on this Convertible Note not later than 5:00
p.m. New York time, on the Maturity Date, in immediately available funds, in
accordance with the payment instructions that the Payee may designate in
writing, without the presentation or surrender of such Convertible Note or the
making of any notation thereon. Any payment made after 5:00 p.m. New York time,
on a Business Day will be deemed made on the next following Business Day. If the
Maturity Date falls on a day that is not a Business Day, such due date shall be
extended to the next succeeding Business Day, and interest shall be payable on
any principal so extended for the period of such extension. All amounts payable
under this Convertible Note shall be paid free and clear of, and without
reduction by reason of, any deduction, set-off or counterclaim. The Company will
afford the benefits of this Section to the Payee and to each other Person
holding this Convertible Note.

          (b) Transfer and Exchange. Upon surrender of any Convertible Note for
registration of transfer or for exchange to the Company at its principal office,
the Company at its sole expense will execute and deliver in exchange therefor a
new Convertible Note or Convertible Notes, as the case may be, as requested by
the holder or transferee, which aggregate the unpaid principal amount of such
Convertible Note, registered as such holder or transferee may request, dated so
that there will be no loss of interest on the Convertible Note and otherwise of
like tenor. The issuance of new Convertible Notes shall be made without charge
to the holder(s) of the surrendered Convertible Note for any issuance tax in
respect thereof or other cost incurred by the Company in connection with such
issuance, provided that each Convertible Noteholder shall pay any transfer taxes
associated therewith. The Company shall be entitled to regard the registered
holder of this Convertible Note as the holder of the Convertible Note so
registered for all purposes until the Company or its agent, as applicable, is
required to record a transfer of this Convertible Note on its register.

          (c) Replacement. Upon receipt of evidence reasonably satisfactory to
the Company of the loss, theft, destruction or mutilation of any Convertible
Note and, in the case of any such loss, theft or destruction of any Convertible
Note, upon receipt of an indemnity reasonably satisfactory to the Company or, in
the case of any such mutilation, upon the surrender and cancellation of such
Convertible Note, the Company, at its expense, will execute and deliver, in lieu
thereof, a new Convertible Note of like tenor and dated the date of such lost,
stolen, destroyed or mutilated Convertible Note.

          5. Representations and Warranties of Payee. Payee represents and
warrants to Company that:

          (a) Investment Purpose. Payee is acquiring this Convertible Note and
any and all securities into which this Convertible Note is convertible solely
for its own account for the purpose of investment and not with a view to or for
sale in connection with any distribution thereof, and has no present intention
or plan to effect any distribution thereof. The securities issuable upon
conversion hereof will bear a legend to the following effect:

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                    "The securities represented by this certificate have not
                    been registered under the Securities Act of 1933, as amended
                    (the "Act"), or the laws of any state and may not be sold or
                    transferred except in compliance with the Act and such
                    laws."

          (b) Information. Payee has had the opportunity to conduct and complete
customary business, financial, and operational due diligence investigations and
Payee is satisfied with the results of the due diligence investigations
conducted by Payee. Payee has been furnished with all materials relating to the
business, finances and operations of the Company that has been requested by
Payee. In addition, Payee has reviewed the public filings made by the Company
with the SEC. Payee understands and acknowledges that its investment in this
Convertible Note involves a high degree of risk.

          (c) Sophistication. Payee is able to bear the economic risk of an
investment in the Convertible Note and can afford to sustain a total loss of
such investment, and has such knowledge and experience in financial and business
matters that it is capable of evaluating the merits and risks of the proposed
investment and therefore has the capacity to protect its own interests in
connection with the purchase of such Convertible Note.

          (d) Illiquidity. Payee understands that there is no public market for
the Convertible Note to be acquired by it and that there may never be a public
market for such Convertible Note or the preferred stock or other security to be
issued at conversion, and that such Purchaser may have to bear the risk of its
investment in such securities for a substantial period of time.

          (e) Accredited Investor. Payee is an "accredited investor" within the
meaning of Regulation D promulgated under the Securities Act. In addition, Payee
has received such information as it considers necessary or appropriate for
deciding whether to acquire the Convertible Note.

          (f) Requisite Power and Authority. Payee has all necessary power and
authority to execute this Convertible Note. This Convertible Note has been duly
executed and delivered by Payee, and when executed by Payee will constitute the
legal, valid and binding obligation of Payee, enforceable in accordance with its
terms, subject to applicable bankruptcy, insolvency, or other similar laws
affecting the enforceability of creditors' rights generally and court decisions
with respect thereto, and the discretion of courts in granting equitable
remedies.

          (g) No Conflict. The execution by Payee of this Convertible Note and
the consummation of the transactions contemplated hereby by Payee will not
result in any violation of or default under, any provision of the organizational
documents of Payee, any contract to which Payee is a party or any applicable
law, rule or regulation, which violation or default could

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reasonably be expected to (i) affect the validity of this Convertible Note, (ii)
affect in any material respect any action taken or to be taken by Payee pursuant
to this Convertible Note, or (iii) have a material adverse effect on the
properties, assets, business or operations of such Payee.

          (h) Confidentiality. The terms and conditions of the Mutual
Non-Disclosure Agreement ("NDA"), if any, previously entered into by Payee and
the Company, shall govern the exchange of all confidential information between
the parties. The NDA shall survive execution of this Convertible Note.

          6. Representations and Warranties of the Company. The Company
represents and warrants to Payee that:

          (a) Organization and Qualification. The Company and each of its
subsidiaries is an entity duly organized, validly existing and in good standing
under the laws of its jurisdiction of organization, with power and authority to
conduct its business as it is now being conducted, to own or use its properties
and assets that it purports to own or use and, in the case of the Company, to
perform its obligations under this Convertible Note. The Company and each of its
subsidiaries is duly qualified to do business as a foreign company and is in
good standing under the laws of each state or other jurisdiction in which either
the ownership or use of the properties owned or used by it, or the nature of the
activities conducted by it, requires such qualification.

          (b) Absence of Conflicts. Neither the execution, delivery and
performance of this Convertible Note by the Company, nor the consummation of the
transactions contemplated hereby, nor compliance by the Company with any of the
provisions hereof, will (a) violate, conflict with, or result in a breach of any
provision of, constitute a default under, or permit or result in the termination
of, acceleration of any obligation under, or creation of a lien under any of the
terms, conditions or provisions of, (i) the certificate of incorporation, bylaws
or stockholders agreements of the Company, or (ii) any note, mortgage,
indenture, contract, agreement or license by which the Company or any of the
properties or assets thereof may be bound, or to which the Company or any
subsidiary thereof or any of the properties or assets thereof may be subject, or
(b) violate or conflict with any law, rule, regulation, judgment, ruling, order,
writ, injunction or decree applicable to the Company or any subsidiary thereof
or any of the properties or assets thereof.

          (c) Authorization of Agreements, Etc. Each of (i) the execution and
delivery by the Company of this Convertible Note, (ii) the performance by the
Company of its obligations hereunder, and (iii) the issuance, sale and delivery
by the Company of this Convertible Note and the shares of Series D Preferred
Stock or other security issuable upon conversion thereof has been duly
authorized by all necessary corporate action of the Company.

          (d) Validity. This Convertible Note has been duly executed and
delivered by the Company and constitutes the legal, valid and binding obligation
of the Company, enforceable against the Company in accordance with its terms.

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          7. Events of Default. If any of the following events takes place
before the Maturity Date (each, an "Event of Default"), Payee at its option may
declare all principal and accrued and unpaid interest thereon and all other
amounts payable under this Convertible Note immediately due and payable in
immediately available cash funds; provided, however, that this Convertible Note
shall automatically become due and payable without any declaration in the case
of an Event of Default specified in clause 2, 3, 4, 5, 6 or 7, below:

          (1)  The Company fails to make payment of the full amount due under
               this Convertible Note (including, without limitation, principal,
               interest, premiums and other amounts) on demand at the Maturity
               Date or by the issuance of Series D Preferred Stock or Qualified
               Financing Securities, as the case may be following a valid Payee
               D Election or Payee F Election by Payee; or
          (2)  A receiver, liquidator or trustee is appointed by a court order
               (i) of the Company or (ii) for any substantial part of the
               Company's assets or properties; or
          (3)  The Company is adjudicated bankrupt or insolvent; or
          (4)  A substantial part of the Company's property is sequestered by or
               in consequence of a court order and such order remains in effect
               for more than 30 days; or
          (5)  The Company files a petition in voluntary bankruptcy or requests
               reorganization under any provision of any bankruptcy,
               reorganization or insolvency law or consents to the filing of any
               petition against it under such law, or
          (6)  Any petition against the Company is filed under bankruptcy,
               receivership or insolvency law; or
          (7)  The Company makes a formal or informal general assignment for the
               benefit of its creditors, or admits in writing its inability to
               pay debts generally when they become due, or consents to the
               appointment of a receiver, liquidator or trustee of the Company
               or for all or any part of its property; or
          (8)  An attachment or execution is levied against any substantial part
               of the Company's assets that is not released within 30 days; or
          (9)  The Company dissolves, liquidates or ceases business activity, or
               transfers the majority of its assets other than in the ordinary
               course of business; or
          (10) The Company breaches any material covenant or agreement on its
               part contained in this Convertible Note;
          (11) There exists any material inaccuracy or untruthfulness of any
               representation or warranty of the Company set forth in this
               Convertible Note; or
          (12) Except as with respect to defaults existing on the date hereof
               under those promissory notes, credit agreements, loan agreements,
               conditional sales contracts, guarantees, leases, indentures,
               bonds, debentures or other contract or material obligations set
               forth on Attachment A, the Company shall default under any
               promissory note, credit agreement, loan agreement, conditional
               sales contract, guarantee, lease, indenture, bond, debenture or
               other contract or material obligation to which it is a party
               whatsoever

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               having an aggregate outstanding amount greater than $100,000 and
               a party thereto or a holder thereof is entitled to accelerate the
               obligations of the Company.

          8. Definitions.

          "Business Day" means a day (other than a Saturday or Sunday) on which
banks generally are open in New York, New York for the conduct of substantially
all of their activities.

          "Convertible Note" shall mean this Convertible Promissory Note.

          "Convertible Notes" shall mean this Convertible Promissory Note along
with (i) any convertible notes substantially in the form of this Convertible
Note issued to UBS Capital LLC, (ii) any convertible note to be issued to
ROF/IFX, LLC if ROF/IFX, LLC has elected to receive a convertible note
substantially similar to the form of this Convertible Note pursuant to the terms
of the convertible note dated September 9, 2002 between ROF/IFX, LLC and the
Company and (iii) any other convertible notes in the form hereof issued upon
transfer or exchange hereof, in whole or in part.

          "Convertible Noteholder" with respect to any Convertible Note, means
at any time each Person then the record owner of such Convertible Note and
"Convertible Noteholders" means all of such Convertible Noteholders
collectively.

          "Person" means any person or entity of any nature whatsoever,
specifically including an individual, a firm, a company, a corporation, a
partnership, a limited liability company, a trust or other entity.

          "Series D Preferred Stock" means the series of convertible preferred
stock of the Company issued in the Series D Financing or, if necessary under
Delaware law, a new class of preferred stock having the same rights,
preferences, and privileges as the Series D Preferred Stock.

          "Series D Financing" means the issuance of convertible preferred stock
of the Company to one or more investors for cash pursuant to the Series D Stock
Purchase Agreement.

          "Series D Stock Purchase Agreement" means the IFX Corporation Series D
Convertible Preferred Stock Purchase Agreement dated as of February 19, 2002,
among the Company and the other parties named therein.

          "Qualified Financing" means the future issuance of Qualified Financing
Securities to one or more investors following the date of issuance of this
Convertible Note pursuant to a Qualified Financing Purchase Agreement, if any.

          "Qualified Financing Securities" means a new series of convertible
preferred stock, any common stock or any convertible debt of the Company to be
issued pursuant to a Qualified Financing Purchase Agreement, if any.

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          "Qualified Financing Purchase Agreement" means an agreement executed
by the Company after the date hereof which provides the Company with debt or
equity financing in connection with the issuance of securities by the Company
consisting of IFX common stock or other securities that are convertible,
exercisable, or exchangeable into shares of IFX common stock.

          9. Expenses of Enforcement, etc. The Company agrees to pay all
reasonable fees and expenses incurred by the Payee in connection with the
negotiation, execution and delivery of this Convertible Note. The Company agrees
to pay all reasonable fees and expenses incurred by the Payee in connection with
any amendments, modifications, waivers, extensions, renewals, renegotiations or
"workouts" of the provisions hereof or incurred by the Payee in connection with
the enforcement or protection of the Payee's rights in connection with this
Convertible Note, or in connection with any pending or threatened action,
proceeding, or investigation relating to the foregoing, including but not
limited to the reasonable fees and expenses of counsel for the Payee. The
Company indemnifies the Payee and its directors, managers, affiliates, partners,
members, officers, employees and agents against, and agrees to hold the Payee
and each such person and/or entity harmless from, any and all losses, claims,
damages, liabilities and related expenses, including reasonable counsel fees and
expenses, incurred by or asserted against the Payee or any such person or entity
arising out of, in any way connected with, or as a result of (i) the
consummation of the loan evidenced by this Convertible Note and the use of the
proceeds thereof or (ii) any claim, litigation, investigation or proceedings
relating to any of the foregoing, whether or not the Payee or any such person or
entity is a party thereto.

          10. Amendment and Waiver. The provisions of this Convertible Note may
not be modified, amended or waived, and the Company may not take any action
herein prohibited, or omit to perform any act herein required to be performed by
it without the written consent of the Payee.

          11. Remedies Cumulative. No remedy herein conferred upon the Payee is
intended to be exclusive of any other remedy and each and every such remedy
shall be cumulative and shall be in addition to every other remedy given
hereunder or now or hereafter existing at law or in equity or by statute or
otherwise.

          12. Remedies Not Waived. No course of dealing between the Company and
the Payee or any delay on the part of the Payee in exercising any rights
hereunder shall operate as a waiver of any right of the Payee.

          13. Assignments. The Payee may assign, participate, transfer or
otherwise convey this Convertible Note and any of its rights or obligations
hereunder or interest herein to any Person, and this Convertible Note shall
inure to the benefit of the Payee's successors and assigns. The Company shall
not assign or delegate this Convertible Note or any of its liabilities or
obligations hereunder.

          14. Headings. The headings of the sections and paragraphs of this
Convertible Note are inserted for convenience only and do not constitute a part
of this Convertible Note.

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          15. Severability. If any provision of this Convertible Note is held
invalid or unenforceable by any court of competent jurisdiction, the other
provisions of this Convertible Note will remain in full force and effect. Any
provision of this Convertible Note held invalid or unenforceable only in part or
degree will remain in full force and effect to the extent not held invalid or
unenforceable.

          16. Cancellation. After all principal, premiums (if any), accrued
interest and all other amounts at any time owed under or in connection with this
Convertible Note have been paid in full in immediately available funds, or this
Convertible Note has been converted in accordance with its terms, this
Convertible Note will be surrendered to the Company for cancellation and will
not be reissued.

          17. Maximum Legal Rate. If at any time an interest rate applicable
hereunder exceeds the maximum rate permitted by law, such rate shall be reduced
to the maximum rate so permitted by law.

          18. Place of Payment and Notices. Subject to Section 4(a) above,
payments of principal and interest and notices deliverable to the Payee
hereunder are to be delivered to the Payee at the address as the Payee has
specified by prior written notice to the Company. No notice shall be deemed to
have been delivered until the first Business Day following actual receipt
thereof at the foregoing address.

          19. Waiver of Jury Trial. The Payee and the Company each hereby waives
any right it may have to a trial by jury in respect of any litigation directly
or indirectly arising out of, under or in connection with this Convertible Note
or the transactions contemplated hereunder.

          20. Submission to Jurisdiction. (a) Any legal action or proceeding
with respect to this Convertible Note may be brought in the courts of the State
of New York or of the United States of America for the Southern District of New
York, and, by execution and delivery of this Convertible Note, the Company
hereby accepts for itself and in respect of its property, generally and
unconditionally, the jurisdiction of the aforesaid courts.

          (b) The Company hereby irrevocably waives, in connection with any such
action or proceeding, any objection, including, without limitation, any
objection to the laying of venue or based on the grounds of forum non
conveniens, which they may now or hereafter have to the bringing of any such
action or proceeding in such respective jurisdictions.

          (c) Nothing herein shall affect the right of the Payee to serve
process in any other manner permitted by law or to commence legal proceedings or
otherwise proceed against the Company in any other jurisdiction.

          21. GOVERNING LAW. ALL ISSUES AND QUESTIONS CONCERNING THE
CONSTRUCTION, VALIDITY, ENFORCEMENT AND INTERPRETATION OF THIS CONVERTIBLE NOTE
SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF
NEW YORK.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                  Page 10 of 11

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          IN WITNESS WHEREOF, the Company has executed and delivered this
Convertible Promissory Note on the date first written above.

                                                       IFX CORPORATION

                                                       By: /s/ Joel Eidelstein
                                                           ---------------------
                                                           Name: Joel Eidelstein
                                                           Title: President

Agreed to and accepted:

PAYEE:

UBS CAPITAL LLC

By: George A. Duarte
    -------------------
Name: George A. Duarte
Title: Attorney in Fact

By: Marc Unger
    -------------------
Name: Marc Unger
Title: Attorney in Fact

Address:       UBS Capital LLC.
               c/o UBS Capital Americas III, LLC
               299 Park Avenue
               New York, NY 10171
               Attention: George Duarte
Telephone No.: (212) 821-6330
Telecopy No.:  (212) 821-6333

                                  Page 11 of 11<PAGE>

                                                                    Exhibit 10.3

                              EMPLOYMENT AGREEMENT

     THIS EMPLOYMENT AGREEMENT (this "Agreement") is entered into as of October
   , 2002, by and between IFX CORPORATION, a Delaware corporation ("IFX" and,
---
collectively with its subsidiaries, "Employer"), and MICHAEL SHALOM
("Employee").

                              W I T N E S S E T H:

     WHEREAS, Employer is in the business of acquiring, developing and
maintaining Internet access and related services in Latin America and other
non-U.S. jurisdictions (the "Business");

     WHEREAS, Employer desires to continue to employ Employee to serve as Chief
Executive Officer and/or Chief Operating Officer of Employer, and Employee
desires to continue such employment, on the terms and subject to the conditions
set forth herein;

     WHEREAS, Employee's existing Employment Agreement (the "Prior Agreement")
is dated as of May 7, 2001, and both Employee and Employer believe it would be
in the best interests of both Employee and Employer to amend and restate the
Prior Agreement by entering into this Agreement;

     WHEREAS, Employee has had an opportunity to review the terms and conditions
of this Agreement, to negotiate the terms hereof and to engage legal counsel on
his behalf if he so desires.

     NOW THEREFORE, in consideration of Employer's continued employment of
Employee, the terms, conditions and covenants contained herein and other good
and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, Employee and Employer, intending to be legally bound, hereby agree
as follows:

                                    ARTICLE I

                                   DEFINITIONS

     1.1 Terms Defined Herein. Except as otherwise herein expressly provided,
the following terms and phrases shall have the meanings set forth below:

     "Affiliate" means (a) in the case of an entity, any Person who or which,
directly or indirectly, through one or more intermediaries, controls or is
controlled by, or is under common control with, any specified Person or (b) in
the case of an individual, such individual's spouse, children, grandchildren or
parents or a trust primarily for the benefit of any of the foregoing.

     "Cause" means (a) the willful and continued failure by Employee to
substantially perform his duties under this Agreement (other than any failure
resulting from Employee's death or incapacity due to physical or mental illness)
for five days after written demand for substantial performance is delivered by
Employer which specifically identifies the manner in which Employer believes
Employee has not substantially performed his duties and which notice is
specifically identified as being issued pursuant to this paragraph, (b) the
commission by

<PAGE>

Employee of theft, embezzlement, fraud or misappropriation of funds against
Employer or the willful engaging by Employee in other misconduct which is
materially injurious to Employer, (c) the willful violation by Employee of
Section 3.1, 3.2, 3.3 or 3.4 of this Agreement or (d) the conviction of Employee
of a felony involving fraud, dishonesty or moral turpitude. Notwithstanding
anything to the contrary contained herein, none of the following events shall be
treated as "cause":

          (i)  bad judgment,

          (ii) negligence, or

          any act or omission that Employee believed in good faith to have been
in or not opposed to the interests of the Company.

     "Change in Control" means the occurrence of any one of the following
events: (a) any consolidation, merger or other similar transaction involving
IFX, following which the stockholders of IFX immediately prior to such
transaction fail to hold more than 50% of the outstanding voting securities of
the continuing or succeeding corporation in substantially the same proportions,
or which contemplates that all or substantially all of the business and/or
assets of IFX will be controlled by another corporation; (b) any sale, lease,
exchange or transfer (in one transaction or series of related transactions) of
all or substantially all of the assets of IFX; (c) approval by the stockholders
of IFX of any plan or proposal for the liquidation or dissolution of IFX, unless
such plan or proposal is abandoned within 60 days following such approval; (d)
the acquisition by any "person" (as such term is used in Sections 13(d) and
14(d)(2) of the Securities Exchange Act of 1934), or two or more Persons acting
in concert, of beneficial ownership (within the meaning of Rule 13d-3
promulgated under the Exchange Act) of 50% or more of the outstanding shares of
voting stock of IFX; provided, however, that for purposes of the foregoing,
"person" excludes UBS Capital Americas III, L.P., UBS Capital, LLC, Lee S.
Casty, the Casty Grantor Subtrust, International Technology Investments, LC or
any of their Affiliates, and any underwriter purchasing shares of IFX with the
intent of reselling them, or (e) if, during any period of 24 consecutive
calendar months commencing on the date of this Agreement, those individuals (the
"Continuing Directors") who either (i) were directors of IFX on the first day of
each such period, or (ii) subsequently became directors of IFX and whose actual
election or initial nomination for election subsequent to that date was approved
by a majority of the Continuing Directors then on the board of directors of IFX,
cease to constitute a majority of the board of directors of IFX.

     "Common Stock" means shares of common stock, par value $.02 per share, of
IFX.

     "Disability" means disability as defined in Employer's disability insurance
plan then in effect.

     "Equity Value" shall mean (i) in the case of the sale, exchange or purchase
of equity securities of Employer, the total net consideration paid for such
securities; and (ii) in the case of a sale or disposition of assets of Employer
and its subsidiaries, the total net consideration paid for such assets.

                                       2

<PAGE>

     "Involuntary Termination" means if Employer terminates Employee for any
reason other than Cause or if Employee terminates his employment with Employer
(a) within 30 days after Employer materially reduces Employee's duties and
responsibilities hereunder; (b) upon material breach of this Agreement by
Employer which remains uncured for 30 days following notice thereof from
Employee to Employer, provided that Employee gives notice of termination within
5 days of expiration of such thirty day period; (c) the failure to nominate or
elect Employee as Chief Executive or Chief Operating Officer of IFX; (d) causing
or requiring Employee to report to anyone other than the Board of Employer; (e)
assignment of duties materially inconsistent with his position and duties
described in this Agreement; (f) the failure of IFX to assign this Agreement to
a successor to IFX or the failure of a successor to IFX to explicitly assume and
agree to be bound by this Agreement; (g) requiring Employee to be principally
located at any office or location more than 50 miles from IFX's current office
in Miami Lakes, Florida; or (h) diminution of Employee's compensation package
without Employee's express written consent; provided, however, that in the event
such breach is curable but Employer is unable to cure such breach within such
five-day period, then any such breach shall not be deemed to justify Employee's
"Involuntary Termination" hereunder so long as Employer is diligently and in
good faith pursuing a cure and such breach is cured no later than 30 days
following receipt of the foregoing written notice from Employee.

     "Liquidity Event" means the consummation of a transaction for consideration
consisting of cash or Unrestricted Marketable Securities, whether in a single
transaction or in a series of related transactions, that are consummated
contemporaneously (or consummated pursuant to contemporaneous agreements), with
an independent third party or a group of independent third parties pursuant to
which such party or parties (a) acquire more than 50% of the outstanding voting
stock of the Employer determined on a fully diluted basis, or (b) acquire assets
constituting all or substantially all of the assets of the Employer and its
subsidiaries on a consolidated basis (which shall be deemed the equivalent of
the acquisition of 100% of the voting stock of the Employer on a fully diluted
basis for the purposes hereof); provided, however, that if the consideration for
such transaction consists of restricted securities, a Liquidity Event shall be
deemed to be consummated at such time as at least 75% of such restricted
securities become Unrestricted Marketable Securities.

     "Person" means any individual, partnership, corporation, limited liability
company, joint venture, trust, firm, association, unincorporated organization or
other entity.

     "Senior Managers" shall mean Joel Edelstein, Michael Shalom, Jose Leiman
and Daniel Salama.

     "Unrestricted Marketable Securities" means securities which are listed on a
national securities exchange or quoted on the NASDAQ National Market System and
which are freely tradable by the holder thereof without restriction pursuant to
an effective registration statement under the Securities Act or Rule 144(k)
thereunder.

     "1998 Plan" means the IFX Corporation 1998 Stock Option and Incentive Plan,
as amended, together with any successor thereto.

                                       3

<PAGE>

     "2001 Plan" means the IFX Corporation 2001 Stock Option Plan, as amended,
together with any successor thereto.

                                   ARTICLE II

                               TERMS OF EMPLOYMENT

     2.1 Employment; Scope of Duties.

          (a) Employer hereby continues to employ Employee as Chief Executive
     Officer and/or Chief Operating Officer of Employer, and Employee hereby
     accepts such employment with Employer. In performing his duties hereunder,
     Employee shall report solely to, and shall be subject to the supervision
     of, the Board of Directors of Employer. Employee shall help to prepare an
     updated rolling financial forecast of Employer to be submitted to a
     committee of the Board of Directors within 30 days after the close of each
     month. The updated rolling financial forecast will include estimates of the
     previous month's performance and represent Employee's best view of
     forecasted results for the current month. The information to be provided by
     Employee in the financial forecast must be reasonably accurate and
     represent a good faith effort on the part of Employee to represent the true
     actual performance of the Employer.

          (b) Employee shall devote his best efforts and full business time and
     attention to the performance of services for Employer in accordance with
     the terms hereof. During the Term (as defined in Section 2.4), Employee
     shall not engage in any other business or professional activities, either
     on a full-time or part-time basis, as an employee, consultant or in any
     other capacity, whether or not he receives any compensation therefor,
     without the prior written consent of Employer's Board of Directors;
     provided, however, that nothing herein shall prevent Employee from (i)
     making and managing personal investments consistent with Section 3.3 of
     this Agreement, (ii) from engaging in community and/or charitable
     activities, so long as such activities, either singly or in the aggregate,
     do not interfere with the proper performance of Employee's responsibilities
     to Employer, or (iii) being involved as an officer, director, employee or
     consultant of ePagos, Inc., Software Brokers of America, Inc. a/k/a
     INTCOMEX and or its Affiliates, and International Technology Investment,
     LC, or any subsidiary or Affiliate of Employer (including but not limited
     to Tutopia.com, Inc.).

     2.2 Compensation.

          (a) As compensation for Employee's services hereunder during the Term,
     Employer shall pay to Employee from and after the date hereof an annual
     salary of $175,000 (the "Salary"), less applicable income tax withholdings.
     The Salary shall be payable in equal semi-monthly installments in
     accordance with Employer's customary compensation policies. If, during the
     term of this Agreement, the Employee should be prevented from performing
     his duties by reason of Disability, amounts payable by Employer hereunder
     shall be reduced by the amounts payable under the Employer's disability
     insurance policy.

                                       4

<PAGE>

          (b) [Reserved.]

          (c) In addition to the above payments, in the event of a Liquidity
     Event, provided that Employee is employed by Employer at the time of such
     Liquidity Event or if Employee was Involuntarily Terminated within 90 days
     prior to the commencement of or during the process leading to such
     Liquidity Event, Employer shall pay a bonus to Employee (a "Targeted
     Bonus") if the Equity Value paid with respect to such Liquidity Event,
     without regard to any payment of a Targeted Bonus to Employee or any other
     Senior Manager is at least $30 million, as determined in conjunction with
     the Liquidity Event. The amount of the Targeted Bonus to be paid to
     Employee will equal 24.75 % of the Total Senior Management Bonus Pool (as
     defined below). The "Total Senior Management Bonus Pool" with respect to a
     Liquidity Event shall equal 2.5% of the Equity Value paid with respect to
     such Liquidity Event, prior to the determination of the Total Senior
     Management Bonus Pool; provided, however, that if the Equity Value equals
     or exceeds $100 million prior to the determination of any Total Senior
     Management Bonus Pool, then the Total Senior Management Bonus Pool shall
     equal $2.5 million plus 5% of that portion of the Equity Value in excess of
     $100 million. If stockholders of Employer receive non-cash consideration in
     connection with a Liquidity Event, then an allocable portion of the
     Targeted Bonus shall be paid to Employee in the form of such non-cash
     consideration, with the amount of such non-cash consideration to be paid to
     Employee in the same ratio that UBS Capital Americas III, L.P. and UBS
     Capital LLC receive cash and non-cash consideration (i.e., if the
     consideration to be received by such holders is half cash and half stock,
     then the Targeted Bonus will be paid in the form of half cash and half
     stock). In connection with a Liquidity Event in which non-cash
     consideration is paid, the Employer shall cause the acquiring entity to
     expressly assume the obligation to pay such non-cash consideration as
     provided above. For the purposes of this Section 2.2(c), "commencement"
     shall mean (i) in the event that a Liquidity Event constitutes an asset
     sale or statutory merger, the adoption by Employer's Board of Directors of
     a resolution to pursue either the sale of Employer's assets or the
     statutory merger, as the case may be, and (ii) in the event that a
     Liquidity Event constitutes a sale of stock of the Employer, the taking of
     affirmative steps by the controlling stockholder(s) of Employer to sell
     stock of Employer in a transaction that would constitute a Liquidity Event.

          (d) UBS Capital Americas III, L.P. and UBS Capital LLC covenant that,
     in connection with the sale of their shares of Employer in a transaction in
     which the sale of such shares would constitute a Liquidity Event and in
     which non-cash consideration is paid, they will cause the acquiring entity
     to agree to pay the non-cash portion of the Targeted Bonus as provided
     above.

          (e) In addition to the Salary and bonuses, Employee shall be granted
     Options as shown on Exhibit A hereto. The Options shall be evidenced by a
     standard option agreement between Employer and Employee in a form approved
     by the Compensation Committee or the Board of Directors of Employer and are
     in addition to options previously granted to Employee under any prior
     employment agreement between Employer and Employee.

                                       5

<PAGE>

          (f) Employee may be entitled to receive an annual cash bonus based on
     recommendations of Employer's Chief Executive Officer and Employer's
     Compensation Committee, and based on Employer's performance as it relates
     to the proposed budget for the fiscal year. Within 30 days after the start
     of each subsequent fiscal year, Employer shall transmit to Employee a copy
     of the proposed budget for such fiscal year, as approved by Employer's
     Board of Directors. Whether or not to award a cash bonus in any year and
     the amount thereof shall be in the sole discretion of the Board of
     Directors.

          (g) In addition to all other payments hereunder, Employee is hereby
     granted the vested right to receive 23,333 shares of Employer's Series E
     Preferred Stock (as defined below), less applicable withholding; provided,
     however, that such shares shall not actually be issued to Employee and
     Employee shall have no right to receive such shares until immediately prior
     to the first to occur of: a) a Change of Control of Employer, b) a
     Liquidity Event of Employer, or c) a Liquidation of Employer, as determined
     under the Certificate of Designation creating the Series E Preferred Stock
     of Employer. Prior to the first to occur of any such events, Employer shall
     file a Certificate of Designation for the Series E Preferred Stock if same
     has not already been done.

     2.3 Employee Benefits.

          (a) Employee shall be entitled to such paid holidays and vacation time
     as is consistent with Employer's standard holiday and vacation policy for
     executive employees of Employer.

          (b) Subject to Employer's rules, policies and regulations as in effect
     from time to time (and subject to applicable eligibility requirements,
     including a minimum employment period), Employee shall be entitled to (i)
     group life insurance, disability or accident, death or dismemberment
     insurance, (ii) medical and/or dental insurance program; provided that
     regardless of the payment for other employees, Employee's premiums for
     himself and his family shall be paid in full by Employer and shall be for a
     preferred provider plan or similar plan, (iii) 401(k) benefit plan, if and
     when Employer establishes such a plan, (iv) other employee benefits that
     Employer may, in its sole discretion, make generally available to employees
     of Employer of the same level and responsibility as Employee, (v) all cell
     phone bills (provided that substantially all calls are made for business
     related to the Employer), (vi) a car allowance of $750 per month, (vii)
     high-speed internet access from Employee's principal residence.

     2.4 Term. Employee's employment pursuant to the Prior Agreement commenced
on May 7, 2001, and shall continue in effect for one (1) year from the date
hereof unless otherwise terminated in accordance with Section 2.5. Commencing on
the date hereof, the Term shall continue to automatically be extended each day
by one day, until a date which is one (1) year following the first date, if any,
that Employer delivers to Employee or Employee delivers to Employer, as the case
may be, written notice that the Term will not be automatically extended. The
period of time during which Employee remains employed by Employer pursuant to
this Section 2.4 is referred to herein as the "Term."

     2.5 Termination of Employment.

                                       6

<PAGE>

          (a) Disability.

          (i)  If during the term of this Agreement, the Employee should be
               prevented from performing his duties by reason of Disability for
               a continuous period greater than 180 days, Employer may terminate
               the Employee's employment hereunder by giving written notice
               thereof to the Employee, effective on the date set forth in the
               notice (which date shall be not less than 15 business days after
               the notice is given). For purposes hereof, a continuous period of
               Disability shall not be deemed interrupted until the Employee
               returns to substantially full time work for a period of at least
               30 days.

          (ii) If termination of employment results or occurs due to Disability
               under this Section 2.5(a), Employee shall receive no other
               compensation hereunder; provided, however, that until Employee
               receives disability insurance payments under Employer's
               disability insurance coverage, Employee shall receive his Salary.
               All Options held by Employee under the 1998 Plan shall vest
               immediately upon the date of termination for Disability.

          (b) Death.

          (i)  In the event of the Employee's death during the term of this
               Agreement, the Employee's employment hereunder shall be deemed
               terminated as of the date of the Employee's death. Employee's
               family shall be entitled to receive fully paid health and dental
               insurance coverage for one year after Employee's death and all
               Options held by Employee under the 1998 Plan shall vest
               immediately.

          (c) Cause.

          (i)  This Agreement and the Employee's employment hereunder may be
               terminated at any time by the Company for Cause.

          (ii) If the Employee's employment is terminated by the Company for
               Cause or Employee terminates his employment other than by reason
               of death, Disability or an Involuntary Termination, Employee
               shall be entitled to no additional payments hereunder and
               Employee's Options shall be treated as required under the 1998
               Plan and the 2001 Plan.

          (d) Involuntary Termination. In the event of an Involuntary
     Termination, Employee shall receive the following:

          (i)  immediately after the date of termination, a lump-sum amount in
               immediately available funds equal to the sum of Executive's
               accrued but unpaid Salary;

                                       7

<PAGE>

          (ii) an amount equal to one-third (1/3) of Employee's annualized
               Salary for the current year of the Term payable semi-monthly over
               four (4) months;

          (iii) the continuation of the benefits (or, if such benefits are not
               available, the after-tax economic equivalent thereof) specified
               in Section 2.3(b) to which Employee is entitled as of the date of
               termination for six (6) months after the date of the Involuntary
               Termination, or, at the election of Employee, cash payment equal
               to the value of such benefits payable semi-monthly over four (4)
               months; provided that with respect to any benefit to be provided
               on an insured basis, such value shall be the present value of the
               premiums expected to be paid for such coverage, and with respect
               to other benefits, such value shall be the present value of the
               expected net cost to the Company of providing such benefits;

          (iv) all options held by Employee under the 1998 Plan shall vest
               immediately;

          (v)  all contractual restrictions on the transfer, sale or pledge of
               the common stock held by the Employee will be immediately
               extinguished and released with respect to an aggregate of 4,500
               shares of common stock held directly by the Employee, his wife
               and his children; and

          (vi) the vested right to receive 24,300 shares of Employers' Series E
               Convertible Preferred Stock, with such stock to have the terms
               set forth in the Amended and Restated Put Agreement dated as of
               August 15, 2002, by and among Employer, UBS Capital Americas III,
               L.P. and UBS Capital LLC ("Series E Preferred Stock"), less
               applicable withholding; provided, however, that such shares shall
               not actually be issued to Employee and Employee shall have no
               right to receive such shares until immediately prior to the first
               to occur of: a) a Change of Control of Employer, b) a Liquidity
               Event of Employer, or c) a Liquidation of Employer, as determined
               under the Certificate of Designation creating the Series E
               Preferred Stock of Employer. Prior to the first to occur of any
               such events, Employer shall file a Certificate of Designation for
               the Series E Preferred Stock if same has not already been done.

          (e) Termination After a Change of Control. If an Involuntary
     Termination occurs within one (1) year after a Change of Control, then
     Executive shall receive the payments required by Section 2.5(d), except
     that for purposes of Section 2.5(d)(ii), Executive shall receive
     seventy-five percent (75%) of Employee's annualized Salary in the year of
     the Change of Control payable semi-monthly over nine (9) months.

          (f) Other Termination Benefits. Other than any amounts or benefits
     payable upon a Termination of Employment hereunder, Executive shall, except
     as otherwise specifically provided herein, not be entitled to any payments
     or benefits provided

                                       8

<PAGE>

     hereunder or under the terms of any plan, policy or program of the Company
     or as otherwise required by applicable law.

                                   ARTICLE III

                            COVENANTS AND AGREEMENTS

     3.1 Records and Confidential Data.

          (a) Employee acknowledges that, in connection with the performance of
     his duties hereunder, Employer and its Affiliates will make available to
     Employee, and/or Employee will have access to, certain Confidential
     Information (as defined below) of Employer and its Affiliates. Employee
     acknowledges and agrees that any and all Confidential Information learned
     or obtained by Employee during the course of his employment by Employer or
     otherwise, whether developed by Employee alone or in conjunction with
     others or otherwise, shall be and is the property of Employer and its
     Affiliates. Employee shall keep all Confidential Information confidential
     and shall not use any Confidential Information in any manner other than in
     connection with Employee's discharge of his duties hereunder.

          (b) Following the first to occur of the termination of Employee's
     employment hereunder, or as soon as reasonably possible after Employer's
     written request, Employee shall return to Employer all written Confidential
     Information which has been provided to Employee and Employee shall destroy
     all copies of any analyses, compilations, studies or other documents
     prepared by Employee or for Employee's use containing or reflecting any
     Confidential Information. Within five business days after receipt of such
     request by Employee, Employee shall, upon written request of Employer,
     deliver to Employer a notarized document certifying that such written
     Confidential Information has been returned or destroyed in accordance with
     this Section 3.1(b).

          (c) For purposes of this Agreement, "Confidential Information" shall
     mean all confidential and proprietary information of Employer and/or its
     Affiliates, including, without limitation, confidential and proprietary
     information that is derived from or regarding reports, investigations,
     experiments, research, trade secrets, work in progress, web site drawing,
     designs, plans, proposals, requests for proposals, bids, codes, marketing
     and sales programs, acquisition targets or strategies, information
     regarding subscribers or web site viewers, client lists, client mailing
     lists, supplier lists, financial projections, cost summaries, payor
     information, pricing formulae, marketing studies relating to prospective
     business opportunities and all other confidential and proprietary materials
     or information prepared for or by Employer and/or any of its Affiliates.
     For purposes of this Agreement, Confidential Information shall not include
     and Employee's obligations under this Section 3.1 shall not extend to (i)
     information which is generally available to the public, (ii) information
     obtained by Employee from Persons not under agreement to maintain the
     confidentiality of the same, and (iii) information which is required to be
     disclosed by law or legal process (after giving Employer prior written
     notice thereof and an opportunity to contest such disclosure).

                                       9

<PAGE>

     3.2 Inventions and Other Matters.

          (a) Employee agrees that all, inventions, discoveries or improvements
     made during the period of Employee's employment with Employer, including,
     without limitation, computer software (including source code, operating
     systems and specifications, data, data bases, files documentation and other
     materials related thereto), HTML or other scripts, web site designs, art
     work, visual images, programming code and programs, processes, uses,
     apparatuses, specialized information relating in any way to or that is
     useful in the business or products of Employer or Employer's actual or
     demonstrably anticipated research or development, designs or compositions
     of any kind that Employee, individually or with others, may originate or
     develop while employed by Employer (collectively, "Inventions"), belong to
     and shall be the sole property of Employer and constitute and shall
     constitute works specially ordered or commissioned as "works made for hire"
     under the United States Copyright Act and other applicable law. Without
     limiting the foregoing, Employee hereby assigns and transfers to Employer
     all rights of whatever nature that Employee may have, including, without
     limitation, any patent, trade secret, trademark or service mark rights (and
     any goodwill appurtenant thereto), any rights of publicity and any right,
     title and interest in any copyright and any right that may affix under any
     copyright law now or hereinafter in force and effect in the United States
     of America or in any other country or countries, in and to any Invention.
     Employee acknowledges and agrees that Employer shall have the royalty-free
     right to use in its businesses, and to make and sell products, processes,
     programs, systems designs, methods, formulas, apparatus, techniques, and
     services derived from any Inventions (whether or not patentable or
     copyrightable), as well as all improvements thereof or know-how related
     thereto. The provisions of this Section 3.2 shall survive termination of
     this Agreement for any reason.

          (b) For purposes of this Agreement, an Invention shall be deemed to
     have been "made during the period of Employee's employment" if, during such
     period, the Invention was conceived, in part or in whole, or first actually
     reduced to practice. Employee agrees that any patent, copyright or trade
     mark application (i) covering intellectual property that relates to
     services performed by Employee hereunder or that is applicable to those
     products or services of Employer that were within the scope of Employee's
     responsibilities hereunder, and (ii) that is filed by or for the benefit of
     Employee or any of his Affiliates within one (1) year after termination of
     Employee's employment shall be presumed to relate to an Invention made
     during the term of his employment and Employee shall have the burden of
     proof to prove otherwise.

          (c) This Section 3.2 shall not apply to an Invention for which no
     equipment, supplies, facilities or Confidential Information (as defined
     below) of Employer was used and that was developed entirely on Employee's
     own time, unless (i) the invention relates or is applicable to the services
     performed by Employee hereunder or that is applicable to those services or
     products of Employer that were within the scope of Employee's
     responsibilities hereunder, or (ii) results from any work relating to the
     Business that was performed, caused to be performed, or supervised by
     Employee for or on behalf of Employer.

                                       10

<PAGE>

          (d) Employee agrees, without further consideration, to (i) promptly
     disclose each such Invention to Employer, to Employee's immediate
     supervisor and to such other individuals as Employer may direct, (ii)
     execute and to join others in executing such applications, assignments and
     other documents as may be necessary or convenient to vest in Employer, or
     its designee, full title to each such Invention and as may be necessary or
     convenient to obtain United States and foreign patents and copyrights
     thereon, to the extent Employer may so choose in its sole discretion, (iii)
     testify in any legal proceeding relative to such Invention whenever
     requested to do so by Employer, and (iv) furnish all facts relating to such
     Inventions or the history thereof.

          (e) Employee agrees that he will not at any time, except as authorized
     or directed by Employer, publish or disclose any information or knowledge
     concerning any Inventions.

     3.3 Non-Competition.

          (a) Employer and Employee recognize that Employee has been retained to
     occupy a position of trust that constitutes part of the professional,
     management and executive staff of Employer. Employee, for and in
     consideration of the payments, rights and benefits provided herein, agrees
     that so long as he is employed by Employer and, if Employer terminates
     Employee's employment for Cause, in the event of an Involuntary Termination
     or if Employee terminates his employment with Employer for any reason other
     than pursuant to an Involuntary Termination, then during the period of time
     that Employee is receiving cash severance payments under Section 2.5(d)(ii)
     or 2.5(e), Employee shall not (i) work or act as an officer or director of
     or compensated consultant to, (ii) assist, (iii) own, directly or through
     any Affiliate or joint venture, a 10% or greater interest in, or (iv) make
     a financial investment (other than a passive, economic investment), whether
     in the form of equity or debt, in any business that is directly competitive
     with the Business in the United States, Latin America or in any other
     market in which Employer is conducting the Business at the time Employee's
     employment with Employer is terminated.

          (b) Notwithstanding the foregoing, nothing herein shall prohibit
     Employee from holding ten percent (10%) or less of any class of voting
     securities of any entity whose equity securities are listed on a national
     securities exchange or regularly traded in the over-the-counter market and
     for which quotations are readily available on the National Association of
     Securities Dealers Automated Quotation system.

          (c) If Employer terminates Employee's employment for Cause or if
     Employee terminates his employment with Employer for any reason other than
     pursuant to an Involuntary Termination, then for a period of one (1) year
     thereafter, Employee shall promptly notify Employer of each employment or
     agency relationship entered into by Employee, and each corporation,
     proprietorship or other entity formed or used by Employee, the business of
     which is directly competitive with the Business. The provisions of this
     Section 3.3 shall survive termination of this Agreement for any reason.

                                       11

<PAGE>

     3.4 Non-Solicitation and Non-Interference.

          (a) Employee acknowledges that Employer has invested substantial time
     and effort in assembling its present staff of personnel. Employee agrees
     that so long as he is employed by Employer and then for a period of one (1)
     year thereafter, Employee shall not, directly or indirectly, employ,
     solicit for employment, or advise or recommend to any other Person that
     such other Person employ or solicit for employment, any of Employer's
     employees or recommend to any employee of Employer that he/she cease to be
     employed by Employer; provided that the restrictions set forth in the
     immediately preceding sentence shall not apply to any solicitation directed
     at the public in general e.g., advertisements in publications of general
     circulation, etc. or to inquiries for employment that were unsolicited,
     directly or indirectly, by Employee.

          (b) Employee acknowledges that all customers of Employer, which
     Employee has serviced or hereafter services during Employee's employment by
     Employer and all prospective customers from whom Employee has solicited or
     may solicit business while in the employ of Employer, shall be solely the
     customers of Employer. Employee agrees that so long as he is employed by
     Employer and for a period of one (1) year thereafter, Employee shall not
     either directly or indirectly solicit business, as to products or services
     competitive with the Business, from any of Employer's customers with whom
     Employee had contact during his employment with Employer.

          (c) Employee agrees that so long as he is employed by Employer and for
     a period of one (1) year thereafter, Employee shall not, directly or
     indirectly, (i) intentionally disrupt or attempt to disrupt or terminate
     any relationship between Employer and any of its Business suppliers,
     clients or employees, or (ii) disparage, malign or discredit the name or
     reputation of Employer to any customers, clients or suppliers of the
     Business. Employee agrees that for so long as he is employed by Employer
     and for a period of one (1) year thereafter, he will not influence or
     attempt to influence any of the customers or clients of Employer to cease
     doing business with Employer.

     3.5 Restrictions Reasonable. Employee agrees that the restrictions
contained in Sections 3.3 and 3.4 are reasonable as to time and geographic scope
because of the nature of the Business and Employee agrees, in particular, that
the geographic scope of this restriction is reasonable because companies in the
same industry as the Business compete on an international basis. Employee
acknowledges that Employer is in direct competition with all other companies
that provide services and products similar to the Business products and services
throughout the United States and Latin America and, because of the nature of the
Business, Employee expressly agrees that the covenants contained in Sections 3.3
and 3.4 cannot reasonably be limited to any smaller geographic area. The
provisions of Sections 3.3 and 3.4 shall survive termination of this Agreement
for any reason.

     3.6 Prior Obligations. Employee represents and warrants that (a) Employee
has no obligation of confidence or other commitments to any previous employer or
any others that conflict with this Agreement or restrict Employee's field of
activities, and (b) no other agreement

                                       12

<PAGE>

to which Employee is subject will conflict with, prevent, be breached by,
interfere with or in any manner affect the terms and conditions of this
Agreement.

     3.7 Injunctive Relief. Employee acknowledge that damages would be an
inadequate remedy for Employee's breach of any of the provisions of Sections
3.1, 3.2, 3.3 and/or 3.4 of this Agreement, and that breach of any of such
provisions will result in immeasurable and irreparable harm to Employer.
Therefore, in addition to any other remedy to which Employer may be entitled by
reason of Employee's breach or threatened breach of any such provision, Employer
shall be entitled to seek and obtain a temporary restraining order, a
preliminary and/or permanent injunction, or any other form of equitable relief
from any court of competent jurisdiction restraining Employee from committing or
continuing any breach of such Section, without the necessity of posting a bond.
It is further agreed that the existence of any claim or cause of action on the
part of Employee against Employer, whether arising from this Agreement or
otherwise, shall in no way constitute a defense to the enforcement of the
provisions of Sections 3.1, 3.2, 3.3 and/or 3.4 of this Agreement.

     3.8 Subordination.

          (a) If a Bankruptcy Event (as defined below) shall occur, then
     Employee agrees that all payments due to or claims (the "Subordinated
     Claims") of Employee arising from or in connection with the termination of
     Employee's employment with Employer for any reason, including without
     limitation the right to receive payments under Section 2.5(d)(ii), Section
     2.5(d)(iii) or Section 2.5(e), whether accrued or arising in the future,
     shall be subordinated in payment and priority to all payments due or to
     become due under the Convertible Notes (as defined below) to the Holders
     (as defined below). For purposes of this Agreement, a "Bankruptcy Event"
     shall mean any dissolution, winding up, liquidation, readjustment,
     reorganization, or other similar proceeding relating to Employer or its
     assets, whether voluntary or involuntary, partial or complete, and whether
     in bankruptcy, insolvency or receivership, or upon an assignment for the
     benefit of creditors, or any other marshalling of the assets and
     liabilities of Employer.

          (b) "Convertible Notes" shall mean those certain Convertible
     Promissory Notes issued on the date hereof to UBS (or, with respect to
     ROF/IFX, LLC, a convertible promissory note issued as Qualified Financing
     Securities with respect to that Convertible Promissory Note issued to
     ROF/IFX, LLC on September 9, 2002), including any amendments, extensions,
     modifications or consolidations of such Convertible Promissory Notes and
     including convertible notes evidencing up to an additional $3.1 million in
     principal amount of convertible indebtedness which may be issued with the
     consent of UBS on substantially the same terms as such Convertible
     Promissory Notes on or before September 1, 2003 (holders of Convertible
     Notes to be referred to herein as the "Holders"). The Holders shall not be
     prejudiced in their rights under this Section 3.8 by any act or failure to
     act of the Holders or delay in the exercise of any right or remedy, and no
     such failure to act or delay shall preclude any further exercise of such
     rights by Holders, nor shall any modification of this Section 3.8 by
     Employer and Employee be binding upon the Holders except as expressly set
     forth in a writing signed and delivered on behalf of those Holders holding
     a majority of the outstanding principal amount of the

                                       13

<PAGE>

     Convertible Notes.This Section 3.8 shall inure to the benefit of the
     Holders and their respective successors and assigns who shall be third
     party beneficiaries hereof.

          (c) Without limiting the foregoing or any other provision hereof, if a
     Bankruptcy Event shall occur then: (a) Employer may not make and Employee
     may not receive, directly or indirectly, make any payment, whether in cash,
     property, securities or otherwise, in respect of any Subordinated Claims
     unless and until all amounts owing to the Holders under or pursuant to the
     Convertible Notes have been indefeasibly paid in full in immediately
     available funds and (b) upon any subsequent distribution of assets of
     Employer: (i) the Holders shall first be entitled to receive indefeasible
     payment in full in immediately available funds of all amounts owing to the
     Holders under or pursuant to the Convertible Notes (including, without
     limitation, interest accruing after the occurrence of any Bankruptcy Event,
     whether or not such interest is an allowed claim against Employer) before
     Employee is entitled to receive any payment, whether in cash, property or
     securities, in respect of any amount owing under or pursuant to the
     Subordinated Claims, and (ii) any payment or distributions of assets of
     Employer of any kind or character, whether in cash, property or securities,
     to which Employee would be entitled in respect of the Subordinated Claims
     except for the provisions hereof, shall be paid by the liquidating trustee
     or agent or other person or entity making such payment or distribution,
     whether a trustee in bankruptcy, a receiver or liquidating trustee or other
     trustee or agent, directly to the Holders (in such manner as a majority in
     principal amount shall so direct) for application to amounts owing to the
     Holders under or pursuant to the Convertible Notes until indefeasibly paid
     in full in immediately available funds. In the event that notwithstanding
     the foregoing Employer shall make any payment to Employee in respect of
     Subordinated Claims or Employee shall receive any payment in respect of
     Subordinated Claims at a time when such payment is not permitted pursuant
     to the foregoing, such payment shall be held by Employee in trust for the
     benefit of, and shall be paid forthwith over and delivered to, the Holders
     (in such manner as a majority in principal amount shall so direct) for
     application to amounts owing to the Holders under or pursuant to the
     Convertible Notes until indefeasibly paid in full in immediately available
     funds. In any bankruptcy, insolvency or similar proceeding with respect to
     Employer after the occurrence of a Bankruptcy Event, Employee irrevocably
     authorizes the Holders (acting with the consent of Holders holding a
     majority in principal amount of the Convertible Notes): (i) to prove and
     enforce any claims of Employee in respect of obligations owed by Employer
     to Employee which are Subordinated Claims either in the name of the Holders
     or in the name of Employee as the attorney-in-fact of Employee; (ii) to
     vote claims comprising obligations owed by Employer to Employee which are
     Subordinated Claims and to accept or reject on behalf of Employee any plan
     proposed in connection with such proceeding; (iii) to accept and execute
     receipts for any payment or distribution made with respect to any and all
     obligations owed by Employer to Employee which are Subordinated Claims;
     (iv) to take action and to execute any instruments necessary to effectuate
     the foregoing either in the name of the Holders or in the name of Employee
     as its attorney-in-fact. Notwithstanding the rights and remedies available
     to Employee under this Agreement, at law, in equity or otherwise, Employee
     agrees that following the occurrence of a Bankruptcy Event Employee will
     not, and will not be entitled to, exercise any Remedy (as defined below)
     against Employer in respect of Subordinated Claims. "Remedy" shall mean and
     include the taking of any action by

                                       14

<PAGE>

     Employee to enforce the obligations of Employer in respect of the
     Subordinated Claims or to collect payment of any amount owing in respect of
     the Subordinated Claims, including, without limitation, the commencement of
     any judicial, arbitral or other action or proceeding (including, without
     limitation, any bankruptcy, insolvency or similar proceeding) against
     Employer or the joining in any such action or proceeding.

     3.9 Directors and Officers Insurance. Employer agrees to use reasonable
commercial efforts to modify its existing directors and officers insurance
policies (the "Policies") to provide that reimbursement of expenses or other
payments to be made by the insurer under the applicable Policy to or for the
benefit of directors or officers is paid directly to the applicable officer or
director and not to Employer and shall further provide that Employer shall not
be a named insured under such Policies. In addition, the Employer agrees to use
commercially reasonable efforts to maintain officers and directors insurance
policies on terms substantially similar to those of the Policies during the
period during which the Employee is a director or officer of the Employer and
for a period of no less than two (2) years thereafter. Notwithstanding the
foregoing, the obligations set forth in this Section 3.9 shall be subject to the
condition that compliance therewith does not substantially increase the
aggregate cost of directors and officers insurance above the current aggregate
cost of the Policies or reduce the scope of coverage below the current scope
covered under the Policies. In the event that the Employer is no longer a public
company, then, notwithstanding the foregoing, the Employer shall be entitled to
terminate and/or reduce the scope of director and officer insurance coverage to
that which is customary for similarly situated private companies that previously
were public companies.

                                   ARTICLE IV

                                  MISCELLANEOUS

     4.1 Notices. All notices and other communications hereunder shall be in
writing and shall be deemed given (a) when made, if delivered personally, (b)
three business days after being mailed by certified or registered mail, postage
prepaid, return receipt requested, or (c) two business days after delivery to a
reputable overnight courier service, to the parties, their successors in
interest or their assignees at the following addresses, or at such other
addresses as the parties may designate by written notice in the manner
aforesaid:

               To Employer:

               IFX Corporation
               c/o IFX Communications Ventures Inc.
               15050 N.W. 79 Court - Suite 200
               Miami Lakes, Florida 33016
               Attention: President

     To Employee, to his home address as recorded in the payroll records of
Employer from time to time.

                                       15

<PAGE>

     4.2 Governing Law. This Agreement shall be governed as to its validity and
effect by the internal laws of the State of Florida, without regard to its rules
regarding conflicts of law.

     4.3 Agreement To Arbitrate.

          (a) Employer and Employee agree that any disputes that arise between
     Employee and Employer (or any of Employer's officers, directors,
     stockholders, supervisors, employees, agents, Affiliates or successors),
     excluding disputes arising out of Section 3.1, 3.2, 3.3 or 3.4, that cannot
     be resolved informally shall be decided by submission of the dispute to
     binding arbitration before a sole neutral arbitrator who is a retired
     federal judge pursuant to the American Arbitration Association Commercial
     Arbitration Rules governing such proceedings, and not by a lawsuit or by
     resort to court process, except as specifically set forth below. Both
     parties acknowledge and agree that they are giving up their respective
     constitutional rights to have any such dispute decided in a court of law
     before a jury, and instead are accepting the use of the arbitration
     process. This Section 4.3(a) applies to any and all disputes, including, by
     way of example only and not limited to, disputes regarding termination of
     Employee's employment; discrimination and unlawful harassment of any kind
     (including, without limitation, claims arising under Title VII of the Civil
     Rights Act of 1964, as amended, 42 U.S.C. (S)2000(e) et seq. and the Civil
     Rights Act of 1991; the Age Discrimination in Employment Act, as amended,
     29 U.S.C. (S)621, et seq.; the Americans with Disabilities Act of 1990, 42
     U.S.C. (S)12101 et seq.; the Family and Medical Leave Act of 1993, 29
     U.S.C. (S)2612 et seq.; and all applicable state and local
     anti-discrimination laws and constitutional provisions); disputes arising
     under any other applicable federal, state or local labor statutes,
     regulations or orders; disputes regarding assault and battery; negligent
     supervision; defamation; invasion of privacy; wages and overtime; and
     disputes regarding the formation and enforceability of this Section 4.3(a).
     The following types of disputes are excluded from the scope of coverage of
     this Section 4.3(a): (i) workers' compensation claims by Employee for
     on-the-job injuries; and (ii) any and all claims by Employer against
     Employee, including claims for injunctive relief, arising out of Employee's
     breach or threatened breach of Section 3.1, 3.2, 3.3 or 3.4 of this
     Agreement.

          (b) General Rules of Arbitration. Either party shall have the right to
     have counsel represent him/it at the arbitration hearing and in
     pre-arbitration proceedings. Pre-arbitration discovery shall be permitted
     in accordance with the Federal Rules of Civil Procedure, except that (i)
     there shall be no limit on the number of depositions that may be noticed by
     either party, and (ii) in connection with any pre-arbitration disclosure of
     expert testimony in accordance with Rule 26(a)(2), the timing of the expert
     disclosure shall be set by the arbitrator.

          (c) Authority of Arbitrator. The arbitrator shall have the authority
     to (i) resolve any discovery disputes that arise between the parties; (ii)
     resolve any dispute relating to the interpretation, applicability or
     enforceability of this Section 4.3; and (iii) entertain a motion to dismiss
     and a motion for summary judgment, applying the standards governing such
     motions under Federal Rule Of Civil Procedure 12(b)(6) and Rule 56. The
     arbitrator is required to render his decision in writing, with an opinion
     stating the

                                       16

<PAGE>

     bases of his decision. Either party has the right to file a
     post-arbitration brief, which shall be considered by the arbitrator

          (d) Payment of Costs and Fees. Each party shall bear its own costs and
     attorneys' fees incurred in connection with the arbitration. The arbitrator
     shall have the discretion to award costs to the prevailing party. The
     arbitrator's fees shall be borne equally by the parties. Each party shall
     post his or its portion of the arbitrator's anticipated fee prior to the
     commencement of the arbitration.

          (e) Appeals. Either side shall have the right to appeal the
     arbitrator's decision by applying to a Court (as defined in Section 4.4)
     for an order vacating the award for any of the reasons set forth in 9
     U.S.C. (S)10, or on the basis that the arbitrator has made a mistake of law
     or fact. The arbitration decision shall stand if it is supported by
     substantial evidence.

     4.4 Jurisdiction; Service of Process. Each of the parties hereto agrees
that any action or proceeding initiated or otherwise brought to judicial
proceedings by either Employee or Employer concerning the subject matter of this
Agreement that is not subject to Section 4.3, shall be litigated in the United
States District Court for Dade County, Florida or, in the event such court
cannot or will not exercise jurisdiction, in the state courts of the State of
Florida covering Miami, Dade County, Florida (the "Courts"). Each of the parties
hereto expressly submits to the jurisdiction and venue of the Courts. Each party
hereto waives any claim that the Courts are an inconvenient forum or an improper
forum based on lack of venue or jurisdiction. Each party shall bear its own
costs and attorneys' fees incurred in connection with any such actions or
proceedings.

     4.5 Successors and Assigns. This Agreement shall be binding upon and shall
inure to the benefit of (a) the heirs, executors and legal representatives of
Employee, upon Employee's death or incapacity, and (b) any successor of
Employer, and any such successor shall be deemed substituted for Employee or
Employer, as the case may be, under the terms hereof for all purposes; provided,
however, that any such assignment shall not relieve Employer from its
obligations hereunder. As used in this Agreement, "successor" shall include any
Person that at any time, whether by purchase, merger, consolidation or
otherwise, directly or indirectly acquires a majority of the assets, business or
stock of Employer; provided, however, that no acquisition of the stock of
Employer by UBS Capital Americas III, L.P., UBS Capital LLC or any of their
respective Affiliates (collectively, "UBS") shall cause UBS to be treated as a
"successor" hereunder.

     4.6 Integration. This Agreement, the Plan and any option agreement Employee
will be required to execute, constitute the entire agreement between the parties
with respect to all matters covered herein, including but not limited to the
parties' employment relationship and Employee's entitlement to compensation,
commissions and benefits from Employer or any of its Affiliated companies and/or
the termination of Employee's employment. This Agreement supersedes all prior
oral or written understandings and agreements relating to its subject matter and
all other business relationships between Employer and/or its Affiliated
companies.

                                       17

<PAGE>

     4.7 No Representations. No Person has made or has the authority to make any
representations or promises on behalf of any of the parties which are
inconsistent with the representations or promises contained in this Agreement,
and this Agreement has not been executed in reliance on any representations or
promises not set forth herein.

     4.8 Amendments. This Agreement may be modified only by a written instrument
executed by the parties that is designated as an amendment to this Agreement.

     4.9 Counterparts. This Agreement is being executed in one or more
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

     4.10 Severability and Non-Waiver. Any provision of this Agreement (or
portion thereof) which is deemed invalid, illegal or unenforceable in any
jurisdiction shall, as to that jurisdiction and subject to this Section, be
ineffective to the extent of such invalidity, illegality or unenforceability,
without affecting in any way the remaining provisions thereof in such
jurisdiction or rendering that or any other provisions of this Agreement
invalid, illegal, or unenforceable in any other jurisdiction. If any covenant
should be deemed invalid, illegal or unenforceable because its scope is
considered excessive, such covenant shall be modified so that the scope of the
covenant is reduced only to the minimum extent necessary to render the modified
covenant valid, legal and enforceable.

     4.11 Voluntary and Knowledgeable Act. Employee represents and warrants that
he has been represented by independent legal counsel of his own choosing and
that he has read and understands each and every provision of this Agreement and
has freely and voluntarily entered into this Agreement.

     4.12 Late Payments. If the Employer fails to pay any amount provided under
this Agreement or any other plan or program sponsored by Employer when due, the
Employer shall pay interest on such amount at a rate equal to (i) the highest
rate of interest charged by the Employer's principal lender plus 200 basis
points, or (ii) in the absence of such a lender, 300 basis points over the prime
commercial lending rate announced by Harris Trust and Savings Bank on the date
such amount is due or, if no such rate shall be announced on such date, the
immediately prior date on which Harris Trust and Savings Bank announced such a
rate; provided, however, that if the interest rate determined in accordance with
this Section exceeds the highest legally-permissible interest rate, then the
interest rate shall be the highest legally-permissible interest rate.

     4.13 Shares Not Yet Authorized. Employer shall authorize such shares of
Series D Preferred Stock or Series E Preferred Stock as shall be necessary to
issue shares to be received by Employee on any exercise of options to be issued
hereunder, or if sufficient authorized shares do not exist, Employer shall
designate one or more new series of preferred stock (as may be required) having
terms and conditions identical to the Series D Preferred Stock or Series E
Preferred Stock, as the case may be, so that such new series of preferred stock
may be issued in connection with the exercise of the options to purchase Series
D Preferred Stock options or Series E Preferred Stock, as the case may be.

                                       18

<PAGE>

     4.14 Stockholder Approval. Until such time as stockholder approval for the
issuance to Employee of the options to purchase Series D Preferred Stock is no
longer required under NASDAQ rules and regulations or under any applicable law,
the effectiveness of the provisions to issue to Employee the options to purchase
Series D Preferred Stock (or any successor series of preferred stock, as
provided in Section 4.13 hereof) shall be contingent on the approval of
shareholders of Employer having a majority of the voting power of Employer.
Employer covenants to seek stockholder approval for the issuance of the Series D
Preferred at the next annual meeting of Employer. The Board of Directors of
Employer shall recommend that the shareholders of Employer vote in favor of and
approve the issuance of the options to Employee hereunder. Each of UBS Capital
LLC and UBS Capital Americas III, L.P. agrees to vote in favor of the issuance
of the options to be issued hereunder to Employee.

                                       19

<PAGE>

     IN WITNESS WHEREOF, the parties hereto have executed this Employment
Agreement as of the date first above written.

                                               EMPLOYER:

                                               IFX CORPORATION

                                               By: /s/ Joel Eidelstein
                                                  ------------------------------
                                               Name: Joel Eidelstein
                                               Title: President
                                               Date: October 31, 2002

                                               EMPLOYEE:

                                                   /s/ Michael Shalom
                                               ---------------------------------
                                               Michael Shalom
                                               Date: October 31, 2002

Solely with respect to Sections 2.2(d) and 4.14.

UBS CAPITAL LLC

By: /s/ George A. Duarte
    ----------------------
    Name: George A. Duarte
    Its: Attorney-in-fact

By: /s/ Marc Unger
    ----------------------
    Name: Marc Unger
    Its: Attorney-in-fact

UBS CAPITAL AMERICAS III, L.P.

By: UBS Capital Americas III, LLC

By: /s/ George A. Duarte
    -----------------------------
    Name: George A. Duarte
    Its: Partner

By: /s/ Marc Unger
    -----------------------------
    Name: Marc Unger
    Its: Chief Financial Officer

<PAGE>

                                    EXHIBIT A

     1. Effective as of the date hereof, Employee shall be granted an option to
purchase 125,000 shares of Employer's Series D Preferred Stock. The exercise
price for the option is equal to $1.20 per share of Series D Convertible
Preferred Stock, subject to such adjustments for stock splits, dividends,
recapitalizations as are contained in the Convertible Promissory Notes issued to
UBS Capital Americas III, L.P. and UBS Capital LLC dated as of the date hereof
(each a "Convertible Promissory Note"). The option will vest monthly over 24
months starting three (3) months from the date hereof, but will vest immediately
in connection with an Involuntary Termination. The option will be
non-transferable and non-assignable. The options will have a term ending ten
(10) years from the date hereof. Options which are vested may be exercised for
ninety (90) days following Employee's death, Disability or an Involuntary
Termination. If Employee is terminated for Cause or terminates employment other
than as a result of death, Disability or an Involuntary Termination, the option
will cease to be exercisable effective as of the effective date of termination.
Unvested options will terminate immediately as of termination of Employee's
employment with Employer.

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