Document:

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                                                                   EXHIBIT 10.28

                              EMPLOYMENT AGREEMENT

      THIS EMPLOYMENT AGREEMENT (the "AGREEMENT") is made as of this 27th day of
August, 1999, by and between UNIVERSAL ACCESS, INC., an Illinois corporation
(the "COMPANY"), and George King (the "EMPLOYEE").

                                    RECITALS:

A. The Company is in the telecommunications business.

B. The Company desires to employ the Employee and Employee desires to be
employed by the Company as its Senior Vice President of Corporate Development,
subject to the terms, conditions and covenants hereinafter set forth.

C. As a condition of the Company employing the Employee, and to the Company's
agreement to grant stock options to the Employee pursuant to the Company's stock
option plan, Employee has agreed not to divulge to the public the Company's
confidential information, not to solicit the Company's vendors, customers or
employees and not to compete with the Company, all upon the terms and conditions
hereinafter set forth.

D. NOW, THEREFORE, in consideration of the foregoing and the agreements,
covenants and conditions set forth herein, the Employee and the Company hereby
agree as follows:

                                    ARTICLE I

                                   EMPLOYMENT

1.1 Employment. The Company hereby employs, engages, and hires Employee, and
Employee hereby accepts employment, upon the terms and conditions set forth in
this Agreement. The Employee shall serve as the Senior Vice President of
Corporate Development of the Company. The Employee shall have and fully perform
the duties and responsibilities required for such job title and position and to
perform such additional services and discharge such other responsibilities as
may be, from time to time, assigned or delegated by the Company.

1.2 Activities and Duties During Employment. Employee represents and warrants to
the Company that Employee is free to accept employment with the Company and that
Employee has no prior or other commitments or obligations of any kind to anyone
else which would hinder or interfere with the performance of this Agreement.

1.3 Employee accepts the employment described in Article I of this Agreement and
agrees to devote his or her full time and efforts to the faithful and diligent
performance of the services described herein, including the performance of such
other services and responsibilities

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as the Company may, from time to time, stipulate. Without limiting the
generality of the foregoing, Employee shall devote not less than five (5) days
per week to this employment, and shall be present on the Company premises or
actively engaged in service to or on behalf of the Company during normal
business hours Monday through Friday, excluding periods of vacation and sick
leave.

                                   ARTICLE II

                                      TERM

2.1 Term. The term of employment under this Agreement shall be one (1) year (the
"Initial Term"), commencing on the date of the Agreement. This Agreement shall
automatically renew for successive one year terms thereafter (each a "Renewal
Term") unless either party delivers notice of termination to the other party not
less than fifteen (15) days prior to the end of the Initial Term or Renewal Term
in question. The Initial Term and any Renewal Terms shall herein be referred to
as the "Employment Term".

2.2 Termination. The Employment Term and employment of Employee may be
terminated as follows:

(a)   By the Company immediately for "Cause." For the purpose of this Agreement,
      "Cause" shall mean (i) conduct amounting to fraud, embezzlement, or
      illegal misconduct in connection with Employee's duties under this
      Agreement; (ii) the conviction of Employee by a court of proper
      jurisdiction of (or his or her written, voluntary and freely given
      confession to) a crime which constitutes a felony (other than a traffic
      violation) or an indictment that results in material injury to the
      Company's property, operation or reputation; (iii) the willful failure of
      Employee to comply with reasonable directions of the Company or any of the
      policies of the Company after (a) written notice is delivered to the
      Employee describing such willful failure and (b) Employee has failed to
      cure or take substantial steps to cure such willful failure after a
      reasonable time period as determined by the Company in its reasonable
      discretion (not to be less than 15 days) unless the Employee, after
      discussion with counsel, in good faith believes, that the directions of
      the Company (or its actions or inactions in response to the Employee's
      written notice) are illegal; or (iv) willful misconduct or a material
      default by the Employee in the performance or observance of any promise or
      undertaking of Employee under this Agreement, which willful misconduct or
      default has continued for a period of ten (10) business days after written
      notice thereof from the Company to the Employee.

(b)   Automatically, without the action of either party, upon the death of
      Employee ("Death").

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(c)   By either party upon the Total Disability of the Employee. The Employee
      shall be considered to have a Total Disability for purposes of this
      Agreement if he or she is unable by reason of accident or illness to
      substantially perform his or her employment duties, and is expected to be
      in such condition for periods totaling six (6) months (whether or not
      consecutive) during any period of twelve (12) months. The determination of
      whether a Total Disability has occurred shall be determined by the
      Company, in good faith, at its sole discretion. Nothing herein shall limit
      the Employee's right to receive any payments to which Employee may be
      entitled under any disability or employee benefit plan of the Company or
      under any disability or insurance policy or plan. During a period of
      disability prior to termination hereunder, Employee shall continue to
      receive his or her full compensation (including base salary and bonus) and
      benefits, subject to offset to the extent of any disability insurance
      payments received by the Employee pursuant to any disability insurance
      policy maintained by or paid for by the Company.

(d)   By the Employee upon ten (10) business days notice to the Company for Good
      Reason, which notice shall state the reason for termination. For the
      purpose of this Agreement, "Good Reason" shall mean any "Change in
      Control" (as hereinafter defined) or any material failure by the Company
      to comply with the provisions of this Employment Agreement, including but
      not limited to, failure to timely pay any part of Employee's compensation
      (including salary or bonus) or provide the benefits contemplated herein,
      and which is not remedied by the Company within ten (10) business days
      after receipt by the Company of written notice thereof from Employee;
      provided, that if such default is of a nature that it cannot be reasonably
      cured within ten (10) day period (but is curable), then if the Company
      shall have commenced an attempt to cure such default within such ten (10)
      day period, the period to cure the default shall be extended until the
      earlier of the date which is forty-five (45) days after receipt of notice
      or the Company has failed to diligently continue its efforts in a
      reasonable manner to cure its default.

      For purposes hereof, the term "Change in Control" shall mean the
      occurrence of any of the following:

      (1)   the Company: (a) consummates a merger or consolidation which results
            in the voting securities of the Company outstanding immediately
            prior thereto continuing to represent (either by remaining
            outstanding or by being converted into voting securities of the
            surviving entity) less than fifty percent (50%) of the total voting
            power represented by the voting securities of the Company of such
            surviving entity outstanding immediately after such merger or
            consolidation; and (b) following such event, the successor entity
            fails to employ Employee as follows (hereinafter, the "Same Terms"):
            on substantially identical terms as are required per this Agreement
            for the remaining Employment Term, and the

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            successor entity further continues to employ Employee in the same
            city and with job responsibilities of a level substantially
            equivalent to or greater than those presently in force and effect;

      (2)   a plan of complete liquidation of the Company or an agreement for
            the sale or disposition by the Company of (in one transaction or a
            series of transactions) all or substantially all of the Company's
            assets is consummated, and following such event the successor entity
            (if any) fails to employ Employee on the Same Terms; or

      (3)   Company consummates a plan of complete liquidation of the Company or
            an agreement for the sale or disposition (in one transaction or a
            series of transactions) by the Company of all or substantially all
            of the Company's assets, and following such event the successor
            entity (if any) fails to employ Employee on the Same Terms;

            provided, however, that a public offering of the stock of the
            Company irrespective of the amount of voting securities owned by
            present shareholders after such offering shall not be deemed to
            constitute a Change of Control; and provided further that if
            Employee agrees to be employed by a successor entity on the Same
            Terms and the successor entity fails to do so, a Change in Control
            shall be deemed to have occurred.

(e)   By the Employee without Good Reason, and therefore in breach of this
      Agreement.

(f)   By the Company other than for Cause, Death or Total Disability, in which
      event Employee's sole remedy and compensation as a result of such
      termination shall be as set forth in Section 2.4(c) below.

2.3 Cessation of Rights and Obligations: Survival of Certain Provisions. On the
date of expiration or earlier termination of the Employment Term for any reason,
all of the respective rights, duties, obligation and covenants of the parties,
as set forth herein, shall, except as specifically provided herein to the
contrary, cease and become of no further force or effect as of the date of said
termination, and shall only survive as expressly provided for herein.

2.4 Cessation of Compensation. In lieu of any severance under any severance plan
that the Company may then have in effect, and subject to (i) the receipt of a
full and unconditional release from Employee and (ii) any amounts owed by the
Employee to the Company under any contract, agreement or loan document entered
into after the date hereof which relates solely to his or her employment with
the Company (including, but not limited to, loans made by the Company to the
Employee), the Company shall pay to the Employee, and the Employee shall be
entitled to receive, the following amounts within thirty (30) days of the date
of a termination of his or her employment:

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(a)   Voluntary Termination/Cause/Expiration of Term. Upon (i) Employee
      terminating his or her employment without Good Reason as provided in
      Section 2.2(e), (ii) the expiration of the Employment Term because the
      Employee or the Company elects to not extend the Employment Term, or (iii)
      a termination of the Employment Term for Cause by the Company as provided
      in Section 2.2(a), the Employee shall be entitled to receive his or her or
      her base salary (which shall include any of his or her unused vacation pay
      for the year of such termination) and expense reimbursements solely
      through the date of termination.

(b)   Death or Total Disability. Upon the termination of the Employment Term by
      reason of the Death or Total Disability of the Employee, the Employee (or,
      in the case of Death, his or her estate) shall be entitled to receive his
      or her base salary (which shall include any of his or her unused vacation
      pay for the year of such termination) and expense reimbursements solely
      through the date of termination.

(c)   Involuntary. Upon the termination of the Employment Term:

      (1)   by the Company for any reason other than Cause, Death or Total
            Disability, or

      (2)   by the Employee for Good Reason,

            the Employee shall be entitled to receive in a lump sum the balance
            of his or her base salary for the lesser of the remaining term of
            the Employment Term (exclusive of any renewals of the then existing
            term) or a period of 6 months (the "Severance Term"), together with
            prorated vacation pay and expense reimbursement through the date of
            termination. In addition, Employee shall be entitled to payment by
            the Company of the premiums for group health insurance coverage
            otherwise payable by Employee under the Consolidated Omnibus Budget
            Reconciliation Act of 1985 ("COBRA") for the Severance Term. It
            shall be a condition to Employee's right to receive the payments
            described above that Employee shall be in compliance with all of the
            Employee's obligations which survive termination hereof, including
            without limitation those arising under Articles IV and V hereof. The
            payments described above are intended to be in lieu of all other
            payments to which Employee might otherwise be entitled in respect of
            termination of Employee's employment without Cause unless otherwise
            required by law or under other agreements between the parties.
            Notwithstanding anything to the contrary contained herein, to the
            extent Employee receives any direct or indirect compensation,
            consulting fees or health insurance from any Third Parties (as
            hereinafter defined) during the Severance Term or with respect to

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            services performed during the Severance Term such compensation shall
            be credited dollar for dollar against the Severance Term payment
            obligations of Company under this Section 2.4(c).

2.5 Business Expenses.

(a)   Reimbursement. The Company shall reimburse the Employee for all
      reasonable, ordinary, and necessary business expenses incurred by him or
      her in connection with the performance of his or her duties hereunder,
      including, but not limited to, ordinary and necessary travel expenses and
      entertainment expenses. The reimbursement of business expenses will be
      governed by the policies of the Company from time-to-time and the terms
      otherwise set forth herein.

(b)   Accounting. The Employee shall provide the Company with an accounting of
      his or her expenses, which accounting shall clearly reflect which expenses
      were incurred for proper business purposes in accordance with the policies
      adopted by the Company and as such are reimbursable by the Company. The
      Employee shall provide the Company with such other supporting
      documentation and other substantiation of reimbursable expenses as will
      conform to Internal Revenue Service or other requirements. All such
      reimbursements shall be payable by the Company to the Employee within a
      reasonable time after receipt by the Company of appropriate documentation
      therefor.

2.6 Sole Compensation. Employee shall not be entitled to any other compensation
from the Company than as set forth in Article II hereof as a result of
termination of Employee's employment.

                                   ARTICLE III

                            COMPENSATION AND BENEFITS

3.1 Compensation. During the Employment Term of this Agreement, the Company
shall pay Employee such salary and bonus as set forth on Exhibit A.

3.2 Payment. All compensation shall be payable in intervals in accordance with
the general payroll payment practice of the Company. The compensation shall be
subject to such withholdings and deductions by the Company as are required by
law. On termination of the Employment Term, the Company shall be entitled to set
off against any monies owing by the Company to Employee the amount of any monies
owing from Employee to the Company.

3.3 Other Benefits. Employee shall be entitled to participate in any retirement,
pension, profit-sharing, stock option, health plan, insurance, disability
income, incentive compensation and welfare or any other benefit plan or plans of
the Company which may now or hereafter be in
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effect and for which the Employee is eligible. Notwithstanding the forgoing, the
Company shall be under no obligation to institute or continue the existence of
any such benefit plan.

                                   ARTICLE IV

           CONFIDENTIALITY, NON-SOLICITATION AND NON-COMPETE AGREEMENT

4.1 Non-Disclosure of Confidential Information. Employee hereby acknowledges and
agrees that the duties and services to be performed by Employee under this
Agreement are special and unique and that as of a result of the employment
hereunder, Employee will acquire, develop and use information of a special and
unique nature and value that is not generally known to the public or to the
Company's industry, including but not limited to, certain records, phone
locations, documentation, software programs, price lists, contract prices for
purchase and sale of telephone access and telephone services, customer lists,
prospect lists, pricing on business proposals to new and existing customers,
network configuration, supplier pricing, equipment configurations, business
plans, ledgers and general information, employee records, mailing lists,
accounts receivable and payable ledgers, financial and other records of the
Company or its Affiliates, and other similar matters (all such information being
hereinafter referred to as "CONFIDENTIAL INFORMATION"). Employee further
acknowledges and agrees that the Confidential Information is of great value to
the Company and its Affiliates and that the restrictions and agreements
contained in this Agreement are reasonably necessary to protect the Confidential
Information and the goodwill of the Company. Accordingly, Employee hereby agrees
that:

(a)   Employee will not, while employed by the Company or at any time
      thereafter, directly or indirectly, except in connection with Employee's
      performance of the duties under this Agreement, or as otherwise authorized
      in writing by the Company for the benefit of the Company, divulge to any
      person, firm, corporation, limited liability company, or organization,
      other than the Company (hereinafter referred to as "THIRD PARTIES"), or
      use or cause or authorize any Third Parties to use, the Confidential
      Information, except as required by law; and

(b)   Upon the termination of Employee's employment for any reason whatsoever,
      Employee shall deliver or cause to be delivered to the Company any and all
      Confidential Information or documents containing Confidential Information,
      including notes, drawings, notebooks, notes, records, keys, data and other
      documents and materials belonging to the Company or its affiliates which
      is in his or her possession or under his or her control relating to the
      Company or its affiliates, regardless of the medium upon which it is
      stored, and will deliver to the Company upon such termination of
      employment any other property of the Company or its Affiliates which is in
      his or her possession or control.

4.2 Non-Solicitation Covenant. Employee hereby covenants and agrees that while
employed by the Company and for a period of one (1) year following the
termination of Employee's

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employment with the Company for any reason, Employee shall not (i) directly or
indirectly, contact, solicit, interfere with, or endeavor to entice away from
the Company or its Affiliates any person, firm, corporation, limited liability
company or other entity that was a customer of the Company at any time while
Employee was an employee of the Company or its Affiliates or who is a
"prospective customer" of the Company, or (ii) induce, attempt to induce or hire
any employee (or any person who was an employee during the year preceding the
date of any solicitation) of the Company or its Affiliates to leave the employ
of the Company or its Affiliates, or in any way interfere with the relationship
between any such employee and the Company or its Affiliates. For purposes
hereof, "prospective customer" shall mean any person or entity which has been
solicited for business by Employee or any officer or other employee of the
Company during the one year period preceding the date of termination of
Employee's employment with the Company, or if Employee is still employed by the
Company within the one year period preceding the event in question.

4.3 Non-Competition Covenant. Employee acknowledges that the covenants set forth
in this Section 4.3 are reasonable in scope and essential to the preservation of
the Business of the Company (as defined herein). Employee also acknowledges that
the enforcement of the covenant set forth in this Section 4.3 will not preclude
Employee from being gainfully employed in such manner and to the extent as to
provide a standard of living for himself or herself, the members of his or her
family and the others dependent upon Employee of at least the level to which
Employee and they have become accustomed and may expect. In addition, Employee
acknowledges that the Company has obtained an advantage over its competitors as
a result of its name, location and reputation that is characterized by near
permanent relationships with vendors, customers, principals and other contacts
which it has developed at great expense. Furthermore, Employee acknowledges that
competition by him or her following the termination or expiration of his or her
employment would impair the operation of the Company beyond that which would
arise from the competition of an unrelated third party with similar skills.
Employee hereby agrees that he or she shall not, during his or her employment
and for a period of one (1) year after the end of his or her employment,
directly or indirectly, engage in or become directly or indirectly interested in
any proprietorship, partnership, firm, trust, company, limited liability company
or other entity, other than the Company (whether as owner, partner, trustee,
beneficiary, stockholder, member, officer, director, employee, independent
contractor, agent, servant, consultant, lessor, lessee or otherwise) that
competes with the Company in the Business of the Company in the Restricted
Territory (as defined herein), other than owning an interest in a company listed
on a recognized stock exchange in an amount which does not exceed five percent
(5%) of the outstanding stock of such corporation. For purposes of this
Agreement, (i) the term "Business of the Company" shall include all business
activities and ventures related to providing telecommunications services or
products in which the Company is engaged, plans to engage in the next twelve
(12) months following termination of Employee's employment or has engaged in
during the prior twelve (12) months, as determined at any time during the
employment of the Employee; and (ii) the term "Restricted Territory" means the
geographical area consisting of a seventy mile radius surrounding each city (and
including such city) in which the Company maintains either an office or a
telecommunications facility.

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4.4 Remedies.

(a)   Injunctive Relief. Employee expressly acknowledges and agrees that the
      Business of the Company is highly competitive and that a violation of any
      of the provisions of Sections 4.1, 4.2 or 4.3 would cause immediate and
      irreparable harm, loss and damage to the Company not adequately
      compensable by a monetary award. Employee further acknowledges and agrees
      that the time periods and territorial areas provided for herein are the
      minimum necessary to adequately protect the Business of the Company, the
      enjoyment of the Confidential Information and the goodwill of the Company.
      Without limiting any of the other remedies available to the Company at law
      or in equity, or the Company's right or ability to collect money damages,
      Employee agrees that any actual or threatened violation of any of the
      provisions of Sections 4.1, 4.2 or 4.3 may be immediately restrained or
      enjoined by any court of competent jurisdiction, and that a temporary
      restraining order or emergency, preliminary or final injunction may be
      issued in any court of competent jurisdiction, without notice and without
      bond.

(b)   Enforcement. It is the desire of the parties that the provisions of
      Sections 4.1, 4.2 or 4.3 be enforced to the fullest extent permissible
      under the laws and public policies in each jurisdiction in which
      enforcement might be sought. Accordingly, if any particular portion of
      Sections 4.1, 4.2 or 4.3 shall ever be adjudicated as invalid or
      unenforceable, or if the application thereof to any party or circumstance
      shall be adjudicated to be prohibited by or invalidated by such laws or
      public policies, such section or sections shall be (i) deemed amended to
      delete therefrom such portions so adjudicated or (ii) modified as
      determined appropriate by such a court, such deletions or modifications to
      apply only with respect to the operation of such section or sections in
      the particular jurisdictions so adjudicating on the parties and under the
      circumstances as to which so adjudicated.

(c)   Legal Fees. The Employee shall reimburse the Company for all reasonable
      costs and expenses, including, but not limited to, attorney's fees,
      incurred by the Company in connection with the enforcement of the
      provisions set forth in this Agreement.

4.5 Company. All references to the Company in this Article IV shall include
"Affiliates" of the Company, as that term is construed under Rule 405 of the
Securities Act of 1933, as amended.

4.6 Consideration. The undertakings of Employee pursuant to Sections 4.2 and 4.3
hereof are given to the Company in consideration for the payments, if any, to be
made pursuant to Section 2.4 hereof and the grant of the stock options
referenced in Exhibit A.

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                                    ARTICLE V

                       ASSIGNMENT OF INTELLECTUAL PROPERTY

5.1 If Employee, during the course of his or her employment with the Company,
creates or discovers any patentable or potentially patentable invention or
design, within the meaning of Title 35 of the United States Code, any utility or
design patent that may be derived from any such invention or design created or
discovered by Employee during the course of his or her employment with the
Company shall be assigned to the Company. Employee agrees to fully cooperate
with the Company in obtaining any such patents, and Employee further agrees to
execute any and all documents the Company may deem necessary to obtain such
patent or to document such assignment to the Company. Employee hereby designates
the Company as his/her attorney-in-fact to execute any such documents relating
to any such patent or assignment thereof to the Company;

5.2 Employee agrees that any original work of authorship fixed in a tangible
medium of expression, including but not limited to literary works; computer
programs, software or other associated intangible property; network
configuration; musical works, including any accompanying words; dramatic works,
including any accompanying music; pantomimes and choreographic works; pictorial,
graphic and sculptural works; motion pictures and other audiovisual works; sound
recordings; and architectural works, within the meaning of Title 17 of the
United States Code, created during the course of his or her employment with the
Company shall be a "work for hire" within the meaning of Section 201(b) of the
Copyright Act, 17 U.S.C. Section 201(b), and that all ownership rights comprised
in the copyright shall vest exclusively in the Company. Employee agrees to fully
cooperate with the Company in obtaining registration of any such copyright,
except that the Company will be responsible for any and all fees and costs
associated with obtaining any such copyright registration;

5.3 If Employee, during the course of his/her employment with the Company,
discovers, invents, or produces, without limitation, any information, computer
programs, software or other associated intangible property; network
configuration, formulae, product, device, system, technique, drawing, program or
process which is a "trade secret" as defined in his/her Employment Agreement or
within the meaning of the Illinois Trade Secret Act (irrespective of where
Employee is employed), such information, formulae, product, device, system,
technique, drawing, program or process shall be assigned to the Company.
Employee agrees to fully cooperate with the Company in protecting the value and
secrecy of any such trade secret, and further agrees to execute any and all
documents the Company deems necessary to document any such assignment to the
Company. Employee appoints the Company as his/her attorney-in-fact to execute
any documents the Company may deem necessary that relates to any such trade
secret or assignment thereof to the Company;

<PAGE>   11
                                   ARTICLE VI

                                  MISCELLANEOUS

6.1 Notices. All notices or other communications required or permitted hereunder
shall be in writing and shall be deemed given, delivered and received (a) when
delivered, if delivered personally, (b) four days after mailing, when sent by
registered or certified mail, return receipt requested and postage prepaid, (c)
one business day after delivery to a private courier service, when delivered to
a private courier service providing documented overnight service, and (d) on the
date of delivery if delivered by telecopy, receipt confirmed, provided that a
confirmation copy is sent on the next business day by first class mail, postage
prepaid, in each case addressed as follows:

      To Employee at his or her home address as set forth on the books and
      records of the Company.

      To Company at:    Universal Access, Inc.
                        100 North Riverside Drive - Suite 2200
                        Chicago, Illinois 60606
                        Attn.:  President
                        Ph: 312-660-5000
                        Fax: 312-660-5050

      With a copy to:   Shefsky & Froelich Ltd.
                        444 North Michigan Avenue
                        Suite 2500
                        Chicago, IL  60611
                        Attn.: Mitchell D. Goldsmith
                        Ph:   (312) 836-4006
                        Fax:  (312) 527-5921

Any party may change its address for purposes of this paragraph by giving the
other party written notice of the new address in the manner set forth above.

6.2 Entire Agreement; Amendments, Etc. This Agreement contains the entire
agreement and understanding of the parties hereto, and supersedes all prior
agreements and understandings relating to the subject matter hereof. Except as
provided in Section 4.4(b), no modification, amendment, waiver or alteration of
this Agreement or any provision or term hereof shall in any event be effective
unless the same shall be in writing, executed by both parties hereto, and any
waiver so given shall be effective only in the specific instance and for the
specific purpose for which given.

<PAGE>   12
6.3 Benefit. This Agreement shall be binding upon, and inure to the benefit of,
and shall be enforceable by, the heirs, successors, legal representatives and
permitted assignees of Employee and the successors, assignees and transferees of
the Company. This Agreement or any right or interest hereunder may not be
assigned by Employee without the prior written consent of the Company. No
implication shall be drawn in favor or against either party based upon the role
of such party's counsel in the drafting of this Agreement.

6.4 No Waiver. No failure or delay on the part of any party hereto in exercising
any right, power or remedy hereunder or pursuant hereto shall operate as a
waiver thereof; nor shall any single or partial exercise of any such right,
power or remedy preclude any other or further exercise thereof or the exercise
of any other right, power or remedy hereunder or pursuant thereto.

6.5 Severability. Wherever possible, each provision of this Agreement shall be
interpreted in such manner as to be effective and valid under applicable law
but, if any provision of this Agreement shall be prohibited by or invalid under
applicable law, such provision shall be ineffective to the extent of such
prohibition or invalidity, without invalidating the remainder of such provision
or the remaining provisions of this Agreement. If any part of any covenant or
other provision in this Agreement is determined by a court of law to be overly
broad thereby making the covenant unenforceable, the parties hereto agree, and
it is their desire, that the court shall substitute a judicially enforceable
limitation in its place, and that as so modified the covenant shall be binding
upon the parties as if originally set forth herein.

6.6 Compliance and Headings. Time is of the essence of this Agreement. The
headings in this Agreement are intended to be for convenience and reference
only, and shall not define or limit the scope, extent or intent or otherwise
affect the meaning of any portion hereof.

6.7 Governing Law. The parties agree that this Agreement shall be governed by,
interpreted and construed in accordance with the laws of the State of Illinois,
and the parties agree that any suit, action or proceeding with respect to this
Agreement shall be brought in the courts of Cook County in the State of Illinois
or in the U.S. District Court for the Northern District of Illinois. The parties
hereto hereby accept the exclusive jurisdiction of those courts for the purpose
of any such suit, action or proceeding. Venue for any such action, in addition
to any other venue permitted by statute, will be Cook County, Illinois. The
parties hereby waive their right to trial by jury on any such action.

6.8 Counterparts. This Agreement may be executed in one or more counterparts,
whether by original, photocopy or facsimile, each of which will be deemed an
original and all of which together will constitute one and the same instrument.

6.9 Recitals. The Recitals set forth above are hereby incorporated in and made a
part of this Agreement by this reference.

<PAGE>   13
6.10 Arbitration. Except as expressly contemplated by Article IV, any dispute
arising between the parties pursuant to this Agreement shall be submitted to
binding arbitration. Any arbitration proceeding involving any provision hereof
will be conducted in Chicago, Illinois. Except as otherwise provided in this
Agreement, all arbitration proceedings will be conducted in accordance with the
then current National Rules for the Resolution of Employment Disputes of the
American Arbitration Association ("AAA"). One arbitrator shall conduct the
proceedings, and shall be elected in accordance with the procedures of the AAA.
The arbitrator shall allow such discovery as the arbitrator determines
appropriate under the circumstances. The arbitrator shall determine which party,
if either, prevailed and shall award the prevailing party its costs. Each party
shall bear his, her or its respective legal fees. The award and decision of the
arbitrator shall be conclusive and binding on all parties to this Agreement and
judgment on the award may be entered in any court of competent jurisdiction. The
parties acknowledge and agree that any arbitration award may be enforced against
either or both of them in a court of competent jurisdiction and each waives any
right to contest the validity or enforceability of such award. The parties
further agree to be bound by the provisions of any statute of limitations which
would be applicable in a court of law to the controversy or claim which is the
subject of any arbitration proceeding initiated under this Agreement. The
parties further agree that they are entitled in any arbitration proceeding to
the entry of an order, by a court of competent jurisdiction pursuant to an
opinion of the arbitrator, for specific performance of any of the requirements
of this Agreement. The parties further agree that the arbitrator shall provide a
statement of reasons explaining the basis of the decision rendered.

6.11 Survival. Notwithstanding anything to the contrary contained herein, the
terms of Articles III, IV, V and VI hereof shall survive any termination of this
Agreement and remain in full force and effect thereafter.

<PAGE>   14
      IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement
to be executed and delivered as of the day and year first above written.

                                        UNIVERSAL ACCESS, INC.

                                        By:  /s/ PATRICK C. SHUTT
                                             -----------------------------------
                                        Its: CEO
                                             -----------------------------------

                                        EMPLOYEE:

                                        /s/ GEORGE A. KING
                                        ----------------------------------------
                                        NAME: George A. King
                                              ----------------------------------

<PAGE>   15
               EXHIBIT A - ECONOMIC TERMS OF EMPLOYMENT AGREEMENT
                             UNIVERSAL ACCESS, INC./

A.    Compensation.

      1.    During the Employment Term, the Company shall pay Employee such
            salary and benefits as shall be agreed upon each year between
            Employee and the Company. For the Initial Term, the Company shall
            pay Employee a base salary of $135,000 per year. Thereafter, the
            Company shall review the Employee's base salary annually.

      2.    Bonus. The Company may, at the Company's sole discretion, in
            addition to Employee's base salary, pay Employee an annual bonus
            with respect to each calendar year in the Employment Term.

      3.    Other Benefits. Employee shall be entitled to participate in any
            retirement, pension, profit-sharing, stock option, health plan,
            insurance, disability income, incentive compensation, vacation and
            welfare or any other benefit plan or plans of the Company which may
            now or hereafter be in effect and for which he or she is eligible.

      4.    Vacation. Employee shall be entitled to up to three (3) weeks of
            paid vacation in each calendar year during the Employment Term,
            provided, however, that the Employee's 1999 calendar year vacation
            shall be prorated for the portion of the calendar year remaining
            after the date hereof; Employee shall be entitled to carry forward
            from one calendar year during the Employment Term to the next
            calendar year up to one additional week's vacation, to the extent it
            was accrued and not taken in the previous year (i.e. not more than 4
            week's total vacation can be taken in any year).

      5.    Stock Options. Employee shall be entitled to options to purchase up
            to 50,000 shares of the Company's common stock at (TBD) per share in
            accordance with the Company's stock option plan, as further
            specified in the form of stock option agreement between Employee and
            the Company.<PAGE>   1
                                                                 Exhibit 10.28.1

                   AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT

      Amendment No. 1 dated as of February 1, 2000 (the "Amendment") to the
Employment Agreement and any exhibits thereto (the "Agreement") by and between
Universal Access, Inc., a Delaware corporation (the "Company") and George A.
King (the "Employee"). Any capitalized terms not defined herein shall have the
meanings assigned to those terms in the Agreement.

                                    RECITALS

      A. Company and Employee entered into the Agreement on August 27, 1999.

      B. Company and Employee desire to amend the Agreement to reflect certain
changes agreed to by the Company and the Employee.

      NOW, THEREFORE, in consideration of the mutual covenants and agreements
hereinafter set forth, and for other good and valuable consideration, the
receipt and sufficiency of which is hereby acknowledged, it is hereby agreed as
follows:

      1. Section 6.3 of the Agreement is hereby deleted in its entirety and
replaced by the following:

                  6.3 Entire Agreement; Amendments, Etc. This Agreement and the
            Indemnification Agreement dated as of January 7, 2000 between the
            Company and Employee (as the Indemnification Agreement may be
            amended, restated or otherwise modified) contain the entire
            agreement and understanding of the parties hereto, and supersede all
            prior agreements and understandings relating to the subject matter
            hereof and thereof. Except as provided in Section 4.4(b), no
            modification, amendment, waiver or alteration of this Agreement or
            any provision or term hereof shall in any event be effective unless
            the same shall be in writing, executed by both parties hereto, and
            any waiver so given shall be effective only in the specific instance
            and for the specific purpose for which given.

      2. Miscellaneous. Upon the execution and delivery of this Amendment, the
Agreement shall be amended and supplemented as set forth herein, as fully and
with the same effect as if the amendments and supplements made hereby were set
forth in the Agreement as of the date hereof. This Amendment and the Agreement
shall henceforth be read, taken and construed as one and the same instrument,
but this Amendment shall not operate so as to render invalid or improper any
action previously taken under this Agreement.

<PAGE>   2
      IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed as of February 1, 2000.

            COMPANY:                UNIVERSAL ACCESS, INC.,
                                    a Delaware corporation

                                    By: /s/ PATRICK C. SHUTT
                                        ----------------------------------------
                                        Name:  Patrick C. Shutt
                                        Title: President and CEO

            EMPLOYEE:               By: /s/ GEORGE A. KING
                                        ----------------------------------------
                                        George A. King

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