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                                                                    EXHIBIT 10.8



                                      LEASE


         THIS LEASE AGREEMENT (this "Lease") is entered into as of March 29,
1999, among LAKESIDE HOLDINGS, L.L.C., a Delaware limited liability company
("Landlord") and MULTI-LINK TELECOMMUNICATIONS, INC., a Colorado corporation
("Tenant"), and MULTI-LINK COMMUNICATIONS, INC., a Colorado corporation
("Guarantor").

         1. LEASE GRANT. Subject to the provisions of Section 30 and Section 31
of the Addendum to this Lease and the remaining terms hereof, Landlord leases to
Tenant, and Tenant leases from Landlord, approximately 3,067 rentable square
feet on the fourth floor, identified as Suite 420 (the "Premises"), and as
depicted in the plan attached as Exhibit A-1 in the office building (the
"Building") located at Lakeside Office Park, 4704 Harlan Street, Lakeside,
Colorado, which Building is depicted on Exhibit B attached hereto, and which
Building is part of the Complex (hereinafter defined) known as Lakeside Plaza
and located on the Real Property more particularly described on Exhibit C
attached hereto and made a part hereof. The term "Complex" includes the Building
and all other buildings located at 4690 and 4704 Harlan Street and 12, 14, and
16 Lakeside Lane, the related land (including the Real Property), driveways,
parking facilities, and similar improvements.

         2. TERM. The term of this Lease shall be thirty-six (36) months,
commencing May 1, 1999 (the "Commencement Date"), and expiring at 5:00 p.m.,
thirty-six months thereafter (the "Term", which definition shall include all
renewals of the initial Term). If the Commencement Date is not the first day of
a calendar month, then the Term shall be extended by the number of days between
the Commencement Date and the first day of the next month. If the Premises are
not ready for occupancy by Tenant on the Commencement Date, then (a) Tenant's
obligation to pay Basic Rent and Additional Rent (as defined in Section 3) shall
be waived until Landlord tenders possession of the Premises to Tenant, (b) the
Term shall be extended by the time between the scheduled Commencement Date and
the date on which Landlord tenders possession of the Premises to Tenant, and (c)
Landlord shall not be in default hereunder or be liable for damages therefor.
However, if the Premises are not ready for occupancy by Tenant within 60 days
after the scheduled Commencement Date, Tenant may, in its sole discretion,
terminate this Lease, in which event all sums previously paid by Tenant shall be
returned to Tenant and neither party shall thereafter have any liability
hereunder. Tenant agrees to execute and deliver to Landlord an Estoppel and
Commencement Date Certificate, within ten (10) days of the date the term
commences, certifying as to the actual commencement and termination dates of the
Term and such other matters as may be required by Landlord. Prior to the
Commencement Date and after Landlord has completed certain improvements on the
Premises, specifically the construction of a wall and the installation of
carpet, Tenant shall have access to the Premises, without charge, for the sole
purpose of installing network wiring and telephone wires.

         3. RENT.

                  (a) Basic Rent. "Basic Rent" (herein so called) shall be the
         following amounts for the following periods of time:



                           Time Period               Annual Basic Rent          Monthly Basic Rent
                           -----------               -----------------          -------------------

                                                                           
                           Months 1 - 36:                 $ 52,139.04                 $ 4,344.92


                  (b) Payment. Tenant shall timely pay to Landlord Basic Rent
         and all additional sums to be paid by Tenant to Landlord under this
         Lease (collectively, the "Rent"), without deduction or set off, but
         subject to abatement pursuant to the provisions of Section 6(c) of this
         Lease, at Landlord's address provided for in this Lease or as otherwise
         specified by Landlord. Basic Rent, adjusted as herein provided, shall
         be payable monthly in advance, and shall be accompanied by all
         applicable state and local sales or use taxes. The first monthly
         installment of Basic Rent shall be payable contemporaneously with the
         execution of this Lease; thereafter, Basic Rent shall be payable on the
         first day of each month beginning on the first day of the second full
         calendar month of the Term. The monthly Basic Rent for any partial
         month at the beginning of the Term shall equal the product of 1/365 of
         the annual Basic Rent in effect during the partial month and the number
         of days in the partial month from and after the Commencement Date and
         shall be due on the Commencement Date.

                  (c) Operating Costs.

                           (1) Tenant shall pay an amount (per each rentable
                  square foot in the Premises) ("Additional Rent") which is
                  Tenant's Proportionate Share (defined below) of the amount by
                  which the Operating Costs incurred with respect to any
                  calendar year (or partial calendar year) exceed the Operating
                  Expense Base Amount (defined below). For purposes of this
                  Lease, "Operating Expense Base Amount" shall mean $4.83 per
                  rentable square foot per annum. Landlord may collect such
                  amount in a lump sum, which shall be due within 30 days after
                  Landlord furnishes to Tenant the Operating Costs and Tax
                  Statement (defined below). Alternatively, Landlord may make a
                  good faith estimate of the Additional Rent to be due by Tenant
                  for any calendar year or part thereof during the Term, and
                  Tenant shall pay to Landlord, on the Commencement Date and on
                  the first day of each calendar month thereafter, an amount
                  equal to the estimated Additional Rent for such calendar year
                  or part thereof divided by the number of months therein. From
                  time to time, Landlord may estimate and re-estimate the
                  Additional Rent to be due by Tenant and deliver a copy of the
                  estimate or re-estimate to Tenant. Thereafter, the monthly
                  installments of Additional Rent payable by Tenant shall be
                  appropriately adjusted in accordance with the estimations so
                  that, by the end of the calendar year in question, Tenant
                  shall have paid all of the 

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                  Additional Rent as estimated by Landlord. Any amounts paid
                  based on such an estimate shall be subject to adjustment as
                  herein provided when actual Operating Costs are available for
                  each calendar year.

                           (2) The term "Operating Costs" shall mean all
                  expenses and disbursements (subject to the limitations set
                  forth below) that Landlord incurs in connection with the
                  ownership, operation, and maintenance of the Complex,
                  determined in accordance with sound accounting principles
                  consistently applied, including, but not limited to, the
                  following costs: (A) reasonable wages and salaries of all
                  employees engaged in the operation, maintenance, and security
                  of the Complex, (including but not limited to accounting
                  staff, property management staff, asset management staff,
                  consulting engineers, secretarial support staff, and parking
                  lot consultants), including taxes, insurance and benefits
                  relating thereto; (B) all supplies and materials used in the
                  operation, maintenance, repair, replacement, and security of
                  the Complex; (C) costs for improvements made to the Complex
                  which, although capital in nature, are expected to reduce the
                  normal operating costs of the Complex, as well as capital
                  improvements made in order to comply with any law or
                  regulation hereafter promulgated by any governmental authority
                  or any new interpretation of any law or regulation hereafter
                  rendered, as amortized over the useful economic life of such
                  improvements as determined by Landlord in its reasonable
                  discretion; (D) cost of all utilities, except the cost of
                  utilities reimbursable to Landlord by the Complex's tenants
                  other than pursuant to a provision similar to this Section
                  3(c); (E) insurance expenses; (F) repairs, replacements, and
                  general maintenance of the Complex; (G) service or maintenance
                  contracts with independent contractors for the operation,
                  maintenance, repair, replacement, or security of the Complex
                  (including, without limitation, alarm service, window
                  cleaning, and elevator maintenance); and (H) a five percent
                  (5%) Management Fee computed on the basis of all Operating
                  Costs, as otherwise set forth in this Lease.

                           Operating Costs shall not include costs for (i)
                  capital improvements made to the Complex, other than capital
                  improvements described in Section 3(c)(2)(C) and except for
                  items which are generally considered maintenance and repair
                  items, such as painting of common areas, replacement of carpet
                  in elevator lobbies, governmentally required improvements, and
                  the like; (ii) repair, replacements and general maintenance
                  paid by proceeds of insurance or by Tenant or other third
                  parties; (iii) interest, amortization or other payments on
                  loans to Landlord; (iv) depreciation; (v) leasing commissions;
                  (vi) legal expenses for services, other than those that
                  benefit the Complex tenants generally (e.g., tax disputes);
                  (vii) renovating or otherwise improving space for occupants of
                  the Complex or vacant space in the Complex; (viii) Taxes
                  (defined below); (ix) federal income taxes imposed on or
                  measured by the income of Landlord from the operation of the
                  Complex; (x) advertising and promotional expenses (except for
                  two (2) tenant events per year); (xi) costs incurred due to
                  any fines and/or penalties due to Landlord's violation of any
                  applicable law, rule, regulation or code; (xii) expenses
                  incurred in connection with the enforcement of the terms of
                  any other tenant leases; and (xiii) inheritance, estate, gift,
                  transfer, succession, franchise and profit taxes, subject to
                  the provisions of Section 3(c)(3) below.

                           (3) Tenant shall pay as additional rent for each
                  calendar year that amount which is Tenant's Proportionate
                  Share of the amount by which the Taxes incurred with respect
                  to such calendar year (or partial calendar year) exceed the
                  Tax Base Amount (defined below). For purposes of this Lease,
                  "Tax Base Amount" shall mean $1.17 per rentable square foot
                  per annum. Tenant shall pay its Proportionate Share of Taxes
                  in the same manner as provided above for Additional Rent with
                  regard to Operating Costs. "Taxes" shall mean taxes,
                  assessments, and governmental charges whether federal, state,
                  county or municipal, and whether they be by taxing districts
                  or authorities presently taxing or by others, subsequently
                  created or otherwise, and any other taxes and assessments
                  attributable to the Complex (or its operation), excluding,
                  however, penalties and interest thereon and federal and state
                  taxes on income (if the present method of taxation changes so
                  that in lieu of the whole or any part of any Taxes, there is
                  levied on Landlord a capital tax directly on the rents
                  received therefrom or a franchise tax, assessment, or charge
                  based, in whole or in part, upon such rents for the Complex,
                  then all such taxes, assessments, or charges, or the part
                  thereof so based, shall be deemed to be included within the
                  term "Taxes" for purposes hereof). Taxes shall include the
                  costs of consultants retained in an effort to lower taxes and
                  all costs incurred in disputing any taxes or in seeking to
                  lower the tax valuation of the Complex.

                           (4) By August 1 of each calendar year, or as soon
                  thereafter as practicable, Landlord shall furnish to Tenant a
                  statement of Operating Costs for the previous year, adjusted
                  as provided in Section 3(d)(6), and of the Taxes for the
                  previous year (the "Operating Costs and Tax Statement"). If
                  the Operating Costs and Tax Statement reveals that Tenant paid
                  more for Operating Costs than the actual amount for the year
                  for which such statement was prepared, or more than its actual
                  share of Taxes for such year, then Landlord shall promptly
                  credit or reimburse Tenant for such excess; likewise, if
                  Tenant paid less than Tenant's actual Proportionate Share of
                  Additional Rent or share of Taxes due, then Tenant shall
                  promptly pay Landlord such deficiency.

                           (5) As used herein, Tenant's "Proportionate Share"
                  shall be 2.356% which is the percentage obtained by dividing
                  the rentable square feet of area in the Premises, which is
                  stipulated to be 3,067 rentable square feet by the total
                  number of square feet of area in the Complex, which is
                  stipulated to be 130,150 rentable square feet (being 95% of
                  the rentable area of the office space in the Complex).

                            With respect to any calendar year or partial
                  calendar year in which the Complex is not occupied to the
                  extent of 95% of the rentable area thereof, the Operating
                  Costs for such period shall, for the purposes hereof, be
                  increased to the amount which would have been incurred had the
                  Complex been occupied to the extent of 95% of the rentable
                  area thereof.



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                           (6) Tenant will be entitled from time to time to
                  audit and verify the Operating Costs and the related books and
                  records of Landlord to assure that the Operating Costs from
                  time to time reported by Landlord are in keeping with the
                  provisions of this Section 3(c). In the event of any errors,
                  the appropriate party will make a correcting payment in full
                  to the other party within 30 days after the determination and
                  communication to all parties of the amount of such error. In
                  the event of any errors on the part of Landlord in excess of
                  3% of Tenant's actual Operating Costs liability for that
                  calendar year, Landlord will also reimburse Tenant for all
                  reasonable costs of the audit and verification reasonably
                  incurred by Tenant within the 30-day period.

         4. DELINQUENT PAYMENT; HANDLING CHARGES. All past due payments (those
outstanding more than ten (10) days) required of Tenant hereunder shall bear
interest from the date due until paid at the rate of eighteen percent (18%) per
annum (the "Interest Rate"); additionally, Landlord may charge Tenant a fee
equal to five percent (5%) of the delinquent payment to reimburse Landlord for
its cost and inconvenience incurred as a consequence of Tenant's delinquency. In
no event, however, shall the charges permitted under this Section 4 or elsewhere
in this Lease, to the extent they are considered to be interest under law,
exceed the maximum lawful rate of interest.

         5. SECURITY DEPOSIT. Contemporaneously with the execution and delivery
of this Lease by Tenant, Tenant shall pay Landlord the amount of $3,000.00 (the
"Security Deposit"), which shall be held by Landlord to secure Tenant's
performance of its obligations under this Lease. In the event the Substitute
Premises or Alternative Substitution Premises become the Premises as provided in
Section 30 or Section 31, respectively, of the Addendum, Tenant shall pay
Landlord the amount of $39,286.00 as an addition to the Security Deposit. In the
event the Tenant pays such addition to the Security Deposit and Tenant has not
been in default in the performance of its obligations under this Lease after the
expiration of twelve (12) months after the Substitute Premises Commencement Date
(hereinafter defined in Section 30) or Alternative Substitute Premises
Commencement Date (defined in Section 31), Landlord shall return a portion of
the Security Deposit to the Tenant in the amount of $12,686.02, and shall return
an additional amount of $12,686.02 of the Security Deposit to Tenant within
forty-five (45) days after expiration of the expiration of such twelve (12)
month period. In the event the Tenant pays such addition to the Security Deposit
and Tenant has not been in default in the performance of its obligations under
this Lease after the expiration of twenty-four (24) months after the
Substitution Premises Commencement Date or Alternative Substitute Premises
Commencement Date, Landlord shall return a portion of the Security Deposit to
Tenant in the amount of $12,686.02, and shall return an additional amount of
$12,686.02 of the Security Deposit to Tenant within forty-five (45) days after
the expiration of such twenty-fourth month period. The Security Deposit
(including any addition thereto) is not an advance payment of Rent or a measure
or limit of Landlord's damages upon an Event of Default (defined in Section 16).
Landlord may, from time to time and without prejudice to any other remedy, use
all or a part of the Security Deposit to perform any obligation Tenant fails to
perform hereunder. Following any such application of the Security Deposit,
Tenant shall pay to Landlord on demand the amount so applied in order to restore
the Security Deposit to the amount of the security deposit immediately prior to
such application. Provided that Tenant has performed all of its obligations
hereunder, Landlord shall, within 30 days after the Term ends, return to Tenant
the portion of the Security Deposit which was not applied to satisfy Tenant's
obligations. The Security Deposit shall be held by Landlord in a separate
account maintained by Landlord for security deposits, and no interest shall be
paid thereon. If Landlord transfers its interest in the Premises and the
transferee assumes Landlord's obligations under this Lease, then Landlord may
assign the Security Deposit to the transferee and Landlord thereafter shall have
no further liability for the return of the Security Deposit.

         6. LANDLORD'S OBLIGATIONS.

                  (a) Services. Landlord shall furnish to Tenant (1) water at
         those points of supply provided for general use of tenants of the
         Complex; (2) heated and refrigerated air conditioning as appropriate,
         at such temperatures and in such amounts as are standard for comparable
         buildings in the vicinity of the Complex; (3) janitorial service to the
         Premises on weekdays, other than holidays, for Complex-standard
         installations and such window washing as may from time to time be
         reasonably required; (4) elevators for ingress and egress to the floor
         on which the Premises are located, in common with other tenants,
         provided that Landlord may reasonably limit the number of operating
         elevators during non-business hours and holidays; and (5) electrical
         current during normal business hours for equipment that does not
         require more than 110 volts and whose electrical energy consumption
         does not exceed normal office usage. Landlord shall maintain the common
         areas of the Complex in reasonably good order and condition, except for
         damage caused by a Tenant Party. If Tenant desires any of the services
         specified in Section 6(a)(2) at any time other than between 7:00 a.m.
         and 6:00 p.m. on weekdays and 8:00 a.m. to 12:00 p.m. on Saturdays
         (excluding holidays), then such services shall be supplied to Tenant
         upon the written request of Tenant delivered to Landlord before 3:00
         p.m. on the business day preceding such extra usage, and Tenant shall
         pay to Landlord the cost of such services within ten days after
         Landlord has delivered to Tenant an invoice therefor. The costs
         incurred by Landlord in providing after-hour HVAC service to Tenant
         shall include costs for electricity, water, sewage, water treatment,
         labor, metering, filtering, and maintenance reasonably allocated by
         Landlord to providing such service. The minimum use of after-hours heat
         or air conditioning shall be four (4) hours and the charge therefor,
         including all of the above referenced costs, shall initially be $75.00
         per hour for the first hour of any consecutive usage, and $50.00 per
         hour for subsequent hours of consecutive usage, provided that Landlord
         shall have the right, from time to time, to increase such charge as
         Landlord's actual expenses incurred in connection with such usage
         increase.

                  (b) Excess Utility Use. Landlord shall not be required to
         furnish electrical current for equipment that requires more than 110
         volts or other equipment whose electrical energy consumption exceeds
         normal office usage. If Tenant's requirements for or consumption of
         electricity exceed the electricity to be provided by Landlord as
         described in Section 6(a), Landlord shall, at Tenant's expense, make
         reasonable efforts to supply such service through the then-existing
         feeders and risers serving the Complex and the Premises, and Tenant
         shall pay 



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         to Landlord the cost of such service within ten days after Landlord has
         delivered to Tenant an invoice therefor. Landlord may determine the
         amount of such additional consumption and potential consumption by any
         verifiable method, including installation of a separate meter in the
         Premises installed, maintained, and read by Landlord, at Tenant's
         expense. Tenant shall not install any electrical equipment unless
         approved in advance by Landlord. The use of electricity in the Premises
         shall not exceed the lesser of the capacity of existing feeders and
         risers to or wiring in the Premises or 2.5 watts per rentable square
         foot. Any risers or wiring required to meet Tenant's excess electrical
         requirements shall, upon Tenant's written request, be installed by
         Landlord, at Tenant's cost, if, in Landlord's judgment, the same are
         necessary and shall not cause permanent damage to the Complex or the
         Premises, cause or create a dangerous or hazardous condition, entail
         excessive or unreasonable alterations, repairs, or expenses, or
         interfere with or disturb other tenants of the Complex. If Tenant uses
         machines or equipment in the Premises which affect the temperature
         otherwise maintained by the air conditioning system or otherwise
         overload any utility, Landlord may install supplemental air
         conditioning units or other supplemental equipment in the Premises, and
         the cost thereof, including the cost of installation, operation, use,
         and maintenance, shall be paid by Tenant to Landlord within ten days
         after Landlord has delivered to Tenant an invoice therefor. Landlord
         shall not be responsible for the failure of the HVAC system to provide
         normal comfort if such failure results from occupancy of the Premises
         by more than an average of one person for each 200 square feet of floor
         area or if Tenant uses heat-producing equipment or equipment the
         electrical load of which, when combined with the load of all lighting
         fixtures, exceeds 2.5 watts per square foot of floor area in any one
         room or area. In addition, if the Premises are used in a manner
         exceeding the aforementioned occupancy and electric load criteria or if
         such window covering requirement shall not be observed or if
         heat-producing or controlled climate equipment is used, Tenant shall
         pay to Landlord, promptly upon billing, Landlord's additional costs of
         supplying air conditioning resulting from such causes, at such rates as
         Landlord shall establish therefore. Tenant agrees at all times to
         cooperate fully with Landlord and to abide by all the regulations and
         requirements which Landlord may prescribe for the proper functioning
         and protection of the HVAC system.

                  (c) Restoration of Services; Abatement. Landlord shall use
         reasonable efforts to restore any service required of it that becomes
         unavailable; however, such unavailability shall not render Landlord
         liable for any damages caused thereby, be a constructive eviction of
         Tenant, constitute a breach of any implied warranty or, entitle Tenant
         to any abatement of Tenant's obligations hereunder.

         7. IMPROVEMENTS; ALTERATIONS; REPAIRS; MAINTENANCE.

                  (a) Improvements; Alterations. Improvements to the Premises
         shall be installed at Tenant's expense only in accordance with plans
         and specifications which have been previously submitted to and approved
         in writing by Landlord. Prior to making any improvements, physical
         additions or other alterations in or to the Premises, Tenant must
         provide stamped architectural and engineering drawings to the Landlord
         for review and approval, and shall also pay all costs and expenses to
         update any of Landlord's drawings relating to the Complex. No
         alterations or physical additions in or to the Premises may be made
         without Landlord's prior written consent, which shall not be
         unreasonably withheld or delayed; however, Landlord may withhold its
         consent to any alteration or addition that would affect the Building's
         structure or its HVAC, plumbing, electrical, or mechanical systems.
         Tenant shall not paint or install lighting or decorations, signs,
         window or door lettering, or advertising media of any type on or about
         the Premises without the prior written consent of Landlord, which shall
         not be unreasonably withheld or delayed; however, Landlord may withhold
         its consent to any such painting or installation which would affect the
         appearance of the exterior of the Building or of any common areas of
         the Complex. All alterations, additions, or improvements made in or
         upon the Premises shall, at Landlord's option, either be removed by
         Tenant prior to the end of the Term (and Tenant shall repair all damage
         caused thereby), or shall remain on the Premises at the end of the Term
         without compensation to Tenant. All alterations, additions, and
         improvements shall be constructed, maintained, and used by Tenant, at
         its risk and expense, in accordance with all Laws (defined below);
         Landlord's approval of the plans and specifications therefor shall not
         be a representation by Landlord that such alterations, additions, or
         improvements comply with any Law.

                  (b) Repairs; Maintenance. Tenant shall maintain the Premises
         in a clean, safe, and operable condition, and shall not permit or allow
         to remain any waste or damage to any portion of the Premises. Tenant
         shall repair or replace, subject to Landlord's direction and
         supervision, any damage to the Complex caused by a Tenant Party. If
         Tenant fails to make such repairs or replacements within 15 days after
         the occurrence of such damage, then Landlord may make the same at
         Tenant's cost. If any such damage occurs outside of the Premises, then
         Landlord may elect to repair such damage at Tenant's expense, rather
         than having Tenant repair such damage. The cost of all repair or
         replacement work performed by Landlord under this Section 7 shall be
         paid by Tenant to Landlord within ten days after Landlord has invoiced
         Tenant therefor.

                  (c) Performance of Work. All work described in this Section 7
         shall be performed only by Landlord or by contractors and
         subcontractors approved in writing by Landlord. Landlord may charge a
         construction management fee of 5% in connection with the performance of
         any such work, which fee shall be paid by Tenant. Tenant shall cause
         all contractors and subcontractors to procure and maintain insurance
         coverage naming Landlord as an additional insured against such risks,
         in such amounts, and with such companies as Landlord may reasonably
         require. All such work shall be performed in accordance with all Laws
         and in a good and workmanlike manner so as not to damage the Premises,
         the Complex, or the components thereof.

                  (d) Mechanic's Liens. Tenant shall not permit any mechanic's
         liens to be filed against the Premises or the Complex for any work
         performed, materials furnished, or obligation incurred by or at the
         request of Tenant. If such a lien is filed, then Tenant shall, within
         ten days after Landlord has delivered notice of the filing thereof to
         Tenant, either pay the amount of the lien, cause the lien to be
         released of record or diligently contest 



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         such lien and deliver to Landlord a bond or other security reasonably
         satisfactory to Landlord. If Tenant fails to timely take either such
         action, then Landlord may pay the lien claim, and any amounts so paid,
         including expenses and interest, shall be paid by Tenant to Landlord
         within ten days after Landlord has invoiced Tenant therefor.

         8. USE. Tenant shall continuously occupy and use the Premises only for
general office purposes (the "Permitted Use") and shall comply with all Laws
relating to the use, condition, access to, and occupancy of the Premises. The
Premises shall not be used for any use which is disreputable, creates
extraordinary fire hazards, or results in an increased rate of insurance on the
Complex or its contents, or for the storage of any hazardous materials or
substances. If, because of a Tenant Party's acts, the rate of insurance on the
Complex or its contents increases, then such acts shall be an Event of Default,
Tenant shall pay to Landlord the amount of such increase on demand, and
acceptance of such payment shall not waive any of Landlord's other rights.
Tenant shall conduct its business and control each other Tenant Party so as not
to create any nuisance or unreasonably interfere with other tenants or Landlord
in its management of the Complex.

         9. ASSIGNMENT AND SUBLETTING.

                  (a) Transfers; Consent. Except as is otherwise set forth in
         this Section 9, Tenant shall not, without the prior written consent of
         Landlord, not to be unreasonably withheld or delayed, (1) assign,
         transfer, or encumber this Lease or any estate or interest herein,
         whether directly or by operation of law; (2) permit any other entity to
         become Tenant hereunder by merger, consolidation, or other
         reorganization unless: the survivor of the merger has a net worth of at
         least the net worth of the Tenant on July 1, 1999, that Tenant gives
         Landlord notice at least ten (10) business days before such event, and
         such notice includes reasonable financial information relating to the
         surviving entity; (3) if Tenant is an entity other than a corporation
         whose stock is publicly traded, permit the transfer of an ownership
         interest in Tenant so as to result in a change in the current control
         of Tenant; (4) sublet any portion of the Premises; (5) grant any
         license, concession, or other right of occupancy of any portion of the
         Premises; or (6) permit the use of the Premises by any parties other
         than Tenant (any of the events listed in Section 9(a)(1) through
         9(a)(6) being a "Transfer"). A sublease to Telecom Sales Associates,
         Inc., is hereby approved, but only for so long as the subleased space
         does not exceed forty percent (40%) of the total Premises leased to
         Tenant. Such approval is conditional upon the performance of each and
         every covenant of this Lease. If Tenant requests Landlord's consent to
         a Transfer, then Tenant shall provide Landlord with a written
         description of all terms and conditions of the proposed Transfer,
         copies of the proposed documentation, and the following information
         about the proposed transferee: name and address; reasonably
         satisfactory information about its business and business history; its
         proposed use of the Premises; banking, financial, and other credit
         information; and general references sufficient to enable Landlord to
         determine the proposed transferee's creditworthiness and character.
         Landlord shall not unreasonably withhold its consent to any assignment
         or subletting of the Premises, provided that the proposed transferee
         (A) is creditworthy; (B) has a good reputation in the business
         community; (C) does not engage in business similar to those of other
         tenants in the Complex; and (D) is not another occupant of the Complex
         or person or entity with whom Landlord is negotiating to lease space in
         the Complex; otherwise, Landlord may withhold its consent in its sole
         discretion. Concurrently with Tenant's notice of any request for
         consent to a Transfer, Tenant shall pay to Landlord a fee equal to the
         greater of (i) $500.00, or (ii) all actual expenses incurred by
         Landlord in reviewing such request, including without limitation
         reasonable attorneys' fees incurred by Landlord in connection with
         considering any request for consent to a Transfer. If Landlord consents
         to a proposed Transfer, then the proposed transferee shall deliver to
         Landlord a written agreement whereby it expressly assumes Tenant's
         obligations hereunder; however, any transferee of less than all of the
         space in the Premises shall be liable only for obligations under this
         Lease that are properly allocable to the space subject to the Transfer
         for the period of the Transfer. No Transfer shall release Tenant from
         its obligations under this Lease, but rather Tenant and its transferee
         shall be jointly and severally liable therefor. Landlord's consent to
         any Transfer shall not waive Landlord's rights as to any subsequent
         Transfers. If an Event of Default occurs while the Premises or any part
         thereof are subject to a Transfer, then Landlord, in addition to its
         other remedies, may collect directly from such transferee all rents
         becoming due to Tenant and apply such rents against Rent. Tenant
         authorizes its transferees to make payments of rent directly to
         Landlord upon receipt of notice from Landlord to do so. Tenant shall
         pay for the cost of any demising walls or other improvements
         necessitated by a proposed subletting or assignment.

                  (b) Cancellation. Landlord may, within 30 days after
         submission of Tenant's written request for Landlord's consent to an
         assignment or subletting, cancel this Lease as to the portion of the
         Premises proposed to be sublet or assigned as of the date the proposed
         Transfer is to be effective. If Landlord cancels this Lease as to any
         portion of the Premises, then this Lease shall cease for such portion
         of the Premises and Tenant shall pay to Landlord all Rent accrued
         through the cancellation date relating to the portion of the Premises
         covered by the proposed Transfer. Thereafter, Landlord may lease such
         portion of the Premises to the prospective transferee (or to any other
         person) without liability to Tenant. Notwithstanding the above to the
         contrary, one (1) time during the Term of this Lease, Tenant shall have
         the right to withdraw its request for Landlord's consent to an
         assignment or subletting by giving Landlord written notice of such
         withdrawal within five (5) days of Tenant's receipt of Landlord's
         notification of its intent to cancel the Lease. In the event Tenant
         exercises its one (1) time right to withdraw its request for Landlord's
         consent to assignment or subletting, in such instance Landlord shall
         not have the right to cancel the Lease, but Landlord's right to cancel
         the Lease upon any future request by Tenant for Landlord's consent to
         an assignment or subletting shall not be affected, and Tenant shall
         have no rights to withdraw such request.

                  (c) Additional Compensation. Tenant shall pay to Landlord,
         immediately upon receipt thereof, fifty percent (50%) of the excess of
         (1) all compensation received by Tenant for a Transfer less the costs



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         reasonably incurred by Tenant with unaffiliated third parties in
         connection with such Transfer (i.e., brokerage commissions, tenant
         finish work, and the like) over (2) the Rent allocable to the portion
         of the Premises covered thereby.

         10. INSURANCE; WAIVERS; SUBROGATION; INDEMNITY.

                  (a) Insurance. Tenant shall maintain throughout the Term the
         following insurance policies: (1) comprehensive general liability
         insurance in amounts of $1,000,000 per occurrence with $1,000,000 in
         the aggregate or such other amounts as Landlord may from time to time
         reasonably require, insuring Tenant, Landlord, Landlord's agents and
         their respective affiliates against all liability for injury to or
         death of a person or persons or damage to property arising from the use
         and occupancy of the Premises; (2) insurance covering the full value of
         Tenant's property and improvements, and other property (including
         property of others) in the Premises; (3) contractual liability
         insurance sufficient to cover Tenant's indemnity obligations hereunder;
         (4) worker's compensation insurance, containing a waiver of subrogation
         endorsement acceptable to Landlord; and (5) business interruption
         insurance. Tenant's insurance shall provide primary coverage to
         Landlord when any policy issued to Landlord provides duplicate or
         similar coverage, and in such circumstance Landlord's policy will be
         excess over Tenant's policy. Tenant shall furnish to Landlord
         certificates of such insurance and such other evidence satisfactory to
         Landlord of the maintenance of all insurance coverages required
         hereunder, and Tenant shall obtain a written obligation on the part of
         each insurance company to notify Landlord at least 30 days before
         cancellation or a material change of any such insurance policies. All
         such insurance policies shall be in form, and issued by companies,
         reasonably satisfactory to Landlord.

                  (b) Waiver of Negligence; No Subrogation. Landlord and Tenant
         each waives any claim it might have against the other for any injury to
         or death of any person or persons or damage to or theft, destruction,
         loss, or loss of use of any property (a "Loss"), to the extent the same
         is insured against under any insurance policy that covers the Complex,
         the Premises, Landlord's or Tenant's fixtures, personal property,
         leasehold improvements, or business, or, in the case of Tenant's
         waiver, is required to be insured against under the terms hereof,
         regardless of whether the negligence of the other party caused such
         Loss; however, Landlord's waiver shall not include any deductible
         amounts on insurance policies carried by Landlord or to any coinsurance
         penalty which Landlord may sustain. Each party shall cause its
         insurance carrier to endorse all applicable policies waiving the
         carrier's rights of recovery under subrogation or otherwise against the
         other party.

                  (c) Tenant's Indemnity. To the extent not prohibited by law,
         Landlord, its agents and their respective officers, directors,
         partners, agents, servants and employees shall not be liable for, and
         it and they are hereby released by Tenant from all liability for, any
         damage either to person or property or resulting from the loss of use
         thereof or any other loss, or any death, sustained by Tenant or by
         other persons claiming through Tenant due to the Complex, surrounding
         property or any part thereof or any appurtenances thereof becoming out
         of repair, or due to the happening of any accident or event in, on or
         about the Complex or surrounding property, or due to any act or neglect
         of any tenant or occupant of the Complex or of any other person;
         excluding only the gross negligence or willful misconduct of Landlord,
         its employees, agents or contractors. This provision shall apply
         particularly, but not exclusively, to damage caused by gas,
         electricity, snow, frost, steam, sewage, sewer gas or odors, fire,
         water or by the bursting or leaking of pipes, faucets, sprinklers,
         plumbing fixtures and windows, and shall apply without distinction as
         to the person whose act or neglect was responsible for the damage and
         whether or not such act or neglect occurred before, at or after the
         execution of this Lease, and whether the damage was due to any of the
         causes specifically enumerated above or to some other cause of an
         entirely different kind. Tenant further agrees that all personal
         property of Tenant upon the Premises, or upon loading docks, receiving
         and holding areas, or elsewhere in, on or about the Property, shall be
         at the risk of Tenant only, and that neither Landlord nor its agents,
         nor their partners, directors or officers, shall be liable for any loss
         or damage thereto or theft thereof. Without limitation of any other
         provisions hereof, Tenant agrees to defend, protect, indemnify and save
         harmless Landlord and its agents, and their respective partners,
         officers, directors and employees, from and against all liability to
         third parties arising out of the acts or omissions of Tenant or any
         subtenant or the servants, agents, employees, contractors, suppliers,
         workmen and invitees of Tenant or any subtenant. Tenant agrees to
         indemnify and save harmless, and upon request, defend, Landlord, its
         agents, and their respective partners, directors, officers and
         employees (herein called "Indemnitees") against and from any and all
         claims by or on behalf of any person, arising out of or related to:

                           (i) Tenant's use or occupancy of the Premises or the
                  conduct of its business, or any activity, work, or thing,
                  permitted or suffered by Tenant, in, on or about the Premises
                  or the Property;

                           (ii) any occurrence in, on or about the Premises;

                           (iii) any breach or default on Tenant's part in the
                  performance or observance of, or compliance with, any term,
                  covenant or condition on Tenant's part to be performed
                  pursuant to the terms of this Lease; or

                           (iv) any act or negligence of Tenant or any
                  subtenant, or any of their respective agents, contractors,
                  servants, employees, invitees or licensees, whether or not the
                  fault or negligence of Landlord or of any other Indemnitee or
                  of the agents, contractors, servants, employees, invitees or
                  licensees of Landlord or any Indemnitee, (whether or not
                  occurring before or after the execution of this Lease),
                  contributed thereto or was the cause thereof, and from and
                  against all costs, counsel fees, expenses, penalties, fines
                  and liabilities which Landlord or any other Indemnitee may
                  suffer or incur in connection with any such claim and any
                  action or proceeding brought with respect thereto. In the



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                  event that any action or proceeding shall be brought by reason
                  of any such claim, against any party to be indemnified
                  hereunder, Tenant covenants that Tenant, upon notice from such
                  party and at Tenant's expense, shall resist and defend such
                  action or proceeding by counsel reasonably satisfactory to
                  such party.

         11. SUBORDINATION; ATTORNMENT; NOTICE TO LANDLORD'S MORTGAGEE.

                  (a) Subordination. This Lease shall be subordinate to any deed
         of trust, mortgage, or other security instrument, or any ground lease,
         master lease, or primary lease, that now or hereafter covers all or any
         part of the Premises (the mortgagee under any such mortgage or the
         lessor under any such lease is referred to herein as a "Landlord's
         Mortgagee"). The provisions of this paragraph shall be self-operative
         and no further instrument of subordination shall be required. However,
         in confirmation of such subordination, Tenant shall promptly execute
         and deliver to Landlord (or such other party so designated by Landlord)
         at Tenant's own cost and expense, within five (5) business days after
         request from Landlord an instrument, in recordable form if required,
         that Landlord or Landlord's Mortgagee may request evidencing such
         subordination. Any Landlord's Mortgagee may elect, at any time,
         unilaterally, to make this Lease superior to its mortgage, ground
         lease, or other interest in the Premises by so notifying Tenant in
         writing.

                  (b) Attornment. Tenant shall attorn to any party succeeding to
         Landlord's interest in the Premises, whether by purchase, foreclosure,
         deed in lieu of foreclosure, power of sale, termination of lease, or
         otherwise, upon such party's request, and, provided such succeeding
         party recognizes Tenant's rights and duties under this Lease, shall
         execute such agreements confirming such attornment as such party may
         reasonably request.

                  (c) Notice to Landlord's Mortgagee. Tenant shall not seek to
         enforce any remedy it may have for any default on the part of Landlord
         without first giving written notice by certified mail, return receipt
         requested, specifying the default in reasonable detail, to any
         Landlord's Mortgagee whose address has been given to Tenant, and
         affording such Landlord's Mortgagee a reasonable opportunity to perform
         Landlord's obligations hereunder.

         12. RULES AND REGULATIONS. Tenant shall comply with the rules and
regulations of the Complex which are attached hereto as Exhibit D. Landlord may,
from time to time, change such rules and regulations for the safety, care, or
cleanliness of the Complex and related facilities, provided that such changes
are applicable to all tenants of the Complex and will not unreasonably interfere
with Tenant's use of the Premises. Tenant shall be responsible for the
compliance with such rules and regulations by each Tenant Party.

         13. CONDEMNATION.

                  (a) Total Taking. If the entire Complex or Premises are taken
         by right of eminent domain or conveyed in lieu thereof (a "Taking"),
         this Lease shall terminate as of the date of the Taking.

                  (b) Partial Taking - Tenant's Rights. If any part of the
         Complex becomes subject to a Taking and such Taking will prevent Tenant
         from conducting its business in the Premises in a manner reasonably
         comparable to that conducted immediately before such Taking for a
         period of more than 60 days, then Tenant may terminate this Lease as of
         the date of such Taking by giving written notice to Landlord within 30
         days after the Taking, and Rent shall be apportioned as of the date of
         such Taking. If Tenant does not terminate this Lease, then Rent shall
         be abated on a reasonable basis as to that portion of the Premises
         rendered untenantable by the Taking.

                  (c) Partial Taking - Landlord's Rights. If any material
         portion, but less than all, of the Complex becomes subject to a Taking,
         or if Landlord is required to pay any of the proceeds received for a
         Taking to a Landlord's Mortgagee, then Landlord may terminate this
         Lease by delivering written notice thereof to Tenant within 30 days
         after such Taking, and Rent shall be apportioned as of the date of such
         Taking. If Landlord does not so terminate this Lease, then this Lease
         will continue, but if any portion of the Premises has been taken, Rent
         shall abate as provided in the last sentence of Section 13(b).

                  (d) Award. If any Taking occurs, then Landlord shall receive
         the entire award or other compensation for the land on which the
         Complex is situated, the Complex, and other improvements taken, and
         Tenant may separately pursue a claim (to the extent it will not reduce
         Landlord's award) against the condemnor for the value of Tenant's
         personal property which Tenant is entitled to remove under this Lease,
         moving costs, loss of business, and other claims it may have.

         14. FIRE OR OTHER CASUALTY.

                  (a) Repair Estimate. If the Premises or the Complex are
         damaged by fire or other casualty (a "Casualty"), Landlord shall,
         within 60 days after such Casualty, deliver to Tenant a good faith
         estimate (the "Damage Notice") of the time needed to repair the damage
         caused by such Casualty.

                  (b) Landlord's and Tenant's Rights. If a material portion of
         the Premises or the Complex is damaged by Casualty such that Tenant is
         prevented from conducting its business in the Premises in a manner
         reasonably comparable to that conducted immediately before such
         Casualty and Landlord estimates that the damage caused thereby cannot
         be repaired within 180 days after the Casualty, then Tenant may
         terminate this Lease by delivering written notice to Landlord of its
         election to terminate within 30 days after the Damage Notice has been
         delivered to Tenant. If Tenant does not so timely terminate this Lease,
         then (subject to Section 14(c)) 



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         Landlord shall repair the Complex or the Premises, as the case may be,
         as provided below, and Rent for the portion of the Premises rendered
         untenantable by the damage shall be abated on a reasonable basis from
         the date of damage until the completion of the repair, unless a Tenant
         Party caused such damage, in which case, Tenant shall continue to pay
         Rent without abatement.

                  (c) Landlord's Rights. If a Casualty damages a material
         portion of the Complex, and Landlord makes a good faith determination
         that restoring the Premises would be uneconomical, or if Landlord is
         required to pay any insurance proceeds arising out of the Casualty to a
         Landlord's Mortgagee, then Landlord may terminate this Lease by giving
         written notice of its election to terminate within 30 days after the
         Damage Notice has been delivered to Tenant, and Basic Rent and
         Additional Rent shall be abated as of the date of the Casualty.

                  (d) Repair Obligation. If neither party elects to terminate
         this Lease following a Casualty, then Landlord shall, within a
         reasonable time after such Casualty, begin to repair the Complex and
         the Premises and shall proceed with reasonable diligence to restore the
         Complex and Premises to substantially the same condition as they
         existed immediately before such Casualty; however, Landlord shall not
         be required to repair or replace any of the furniture, equipment,
         fixtures, and other improvements which may have been placed by, or at
         the request of, Tenant or other occupants in the Complex or the
         Premises, and Landlord's obligation to repair or restore the Complex or
         Premises shall be limited to the extent of the insurance proceeds
         actually received by Landlord for the Casualty in question.

         15. PERSONAL PROPERTY TAXES. Tenant shall be liable for all taxes
levied or assessed against personal property, furniture, or fixtures placed by
Tenant in the Premises. If any taxes for which Tenant is liable are levied or
assessed against Landlord or Landlord's property and Landlord elects to pay the
same, or if the assessed value of Landlord's property is increased by inclusion
of such personal property, furniture or fixtures and Landlord elects to pay the
taxes based on such increase, then Tenant shall pay to Landlord, upon demand,
the part of such taxes for which Tenant is primarily liable hereunder; however,
Landlord shall not pay such amount if Tenant notifies Landlord that it will
contest the validity or amount of such taxes before Landlord makes such payment,
and thereafter diligently proceeds with such contest in accordance with law and
if the non-payment thereof does not pose a threat of loss or seizure of the
Complex or interest of Landlord therein or impose any fee or penalty against
Landlord.

         16. EVENTS OF DEFAULT. Each of the following occurrences shall be an
"Event of Default":

                  (a) Tenant's failure to pay Rent or any other monetary
         obligation under this Lease within five (5) calendar days of when due;

                  (b) Tenant (1) abandons or vacates the Premises or any
         substantial portion thereof or (2) fails to continuously operate its
         business in the Premises for the Permitted Use set forth herein;

                  (c) Tenant fails to provide any estoppel certificate as called
         for in this Lease and such failure shall continue for five (5) business
         days after written notice thereof from Landlord to Tenant;

                  (d) Tenant's failure to perform, comply with, or observe any
         other agreement or obligation of Tenant under this Lease and the
         continuance of such failure for a period of more than 30 days after
         Landlord has delivered to Tenant written notice thereof, provided that
         such failure shall not constitute an Event of Default if Tenant
         commences actions to cure such default within thirty (30) days of
         Tenant's receipt of Landlord's notice and diligently pursues such
         actions to cure such default within sixty (60) days of Tenant's receipt
         of Landlord's notice; and

                  (e) The filing of a petition by or against Tenant (the term
         "Tenant" shall include, for the purpose of this Section 16(e), any
         guarantor of Tenant's obligations hereunder) (1) in any bankruptcy or
         other insolvency proceeding; (2) seeking any relief under any state or
         federal debtor relief law; (3) for the appointment of a liquidator or
         receiver for all or substantially all of Tenant's property or for
         Tenant's interest in this Lease; or (4) for the reorganization or
         modification of Tenant's capital structure; however, if such a petition
         is filed against Tenant, then such filing shall not be an Event of
         Default unless Tenant fails to have the proceedings initiated by such
         petition dismissed within 90 days after the filing thereof.

         17. REMEDIES. Upon any Event of Default, Landlord may, in addition to
all other rights and remedies afforded Landlord hereunder or by law or equity,
take any of the following actions:

                  (a) Terminate this Lease by giving Tenant written notice
         thereof, in which event Tenant shall pay to Landlord the sum of (1) all
         Rent accrued hereunder through the date of termination; (2) all amounts
         due under Section 18(a); and (3) an amount equal to (A) the total Rent
         that Tenant would have been required to pay for the remainder of the
         Term discounted to present value at a per annum rate equal to the
         "Prime Rate" as published on the date this Lease is terminated by The
         Wall Street Journal, Southwest Edition, in its listing of "Money Rates"
         minus one percent, minus (B) the then present fair rental value of the
         Premises for such period, similarly discounted;

                  (b) Terminate Tenant's right to possess the Premises without
         terminating this Lease by giving written notice thereof to Tenant, in
         which event Tenant shall pay to Landlord (1) all Rent and other amounts
         accrued hereunder to the date of termination of possession; (2) all
         amounts due from time to time under Section 18(a); and (3) all Rent and
         other net sums required hereunder to be paid by Tenant during the
         remainder of the Term, diminished by any net sums thereafter received
         by Landlord through reletting the Premises during such 



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         period. To the extent required by law, Landlord shall use reasonable
         efforts to relet the Premises on such terms and conditions as Landlord
         in its sole discretion may determine (including a term different from
         the Term, rental concessions, and alterations to, and improvement of,
         the Premises); however, Landlord shall not be obligated to relet or
         attempt to relet the Premises before leasing other portions of the
         Complex. Landlord shall not be liable for, nor shall Tenant's
         obligations hereunder be diminished because of, Landlord's failure to
         relet the Premises or to collect rent due for such reletting. Tenant
         shall not be entitled to the excess of any consideration obtained by
         reletting over the Rent due hereunder. Reentry by Landlord in the
         Premises shall not affect Tenant's obligations hereunder for the
         unexpired Term; rather, Landlord may, from time to time, bring an
         action against Tenant to collect amounts due by Tenant, without the
         necessity of Landlord's waiting until the expiration of the Term.
         Unless Landlord delivers written notice to Tenant expressly stating
         that it has elected to terminate this Lease, all actions taken by
         Landlord to dispossess or exclude Tenant from the Premises shall be
         deemed to be taken under this Section 17(b). If Landlord elects to
         proceed under this Section 17(b), it may at any time elect to terminate
         this Lease under Section 17(a).

                  (c) Additionally, unless otherwise required by applicable law,
         Landlord may, without notice, enter upon the Premises and alter locks
         or other security devices at the Premises to deprive Tenant, its
         officers, employees, agents, invitees, licensees and all other
         occupants, of access thereto, and Landlord shall not be required to
         provide a new key or right of access to Tenant.

         18. PAYMENT BY TENANT; NON-WAIVER.

                  (a) Payment by Tenant. Upon any Event of Default, Tenant shall
         pay to Landlord all costs incurred by Landlord (including court costs
         and reasonable attorneys' fees and expenses) in (1) obtaining
         possession of the Premises; (2) removing and storing Tenant's or any
         other occupant's property; (3) repairing, restoring, altering,
         remodeling, or otherwise putting the Premises into condition acceptable
         to a new tenant; (4) if Tenant is dispossessed of the Premises and this
         Lease is not terminated, reletting all or any part of the Premises
         (including brokerage commissions, cost of tenant finish work, and other
         costs incidental to such reletting); (5) performing Tenant's
         obligations which Tenant failed to perform; and (6) enforcing, or
         advising Landlord of, its rights, remedies, and recourses arising out
         of the Event of Default. To the full extent permitted by law, Landlord
         and Tenant agree the federal and state courts of Colorado shall have
         exclusive jurisdiction over any matter relating to or arising from this
         Lease and the parties' rights and obligations under this Lease.

                  (b) No Waiver. Landlord's acceptance of Rent following an
         Event of Default shall not waive Landlord's rights regarding such Event
         of Default. No waiver by Landlord of any violation or breach of any of
         the terms contained herein shall waive Landlord's rights regarding any
         future violation of such term. Landlord's acceptance of any partial
         payment of Rent shall not waive Landlord's rights with regard to the
         remaining portion of the Rent that is due, regardless of any
         endorsement or other statement on any instrument delivered in payment
         of Rent or any writing delivered in connection therewith; accordingly,
         Landlord's acceptance of a partial payment of Rent shall not constitute
         an accord and satisfaction of the full amount of the Rent that is due.

         19. LANDLORD'S LIEN. In addition to the statutory landlord's lien,
Tenant grants to Landlord, to secure performance of Tenant's obligations
hereunder, a security interest in all goods (including equipment and inventory),
fixtures, and other personal property of Tenant situated on the Premises and all
proceeds thereof (the "Collateral"), and the Collateral shall not be removed
from the Premises without the prior written consent of Landlord (other than in
Tenant's ordinary course of business) until all obligations of Tenant have been
fully performed. Upon the occurrence of an Event of Default, Landlord may, in
addition to all other remedies, without notice or demand except as provided
below, exercise the rights afforded to a secured party under the Colorado
Uniform Commercial Code (the "UCC"). To the extent the UCC requires Landlord to
give to Tenant notice of any act or event and such notice cannot be validly
waived before a default occurs, then five-days' prior written notice thereof
shall be reasonable notice of the act or event. Tenant agrees to execute any
financing statement or other instrument necessary to perfect Landlord's security
interest under this Section 19. Landlord may also file a copy of this Lease as a
financing statement to perfect its security interest in the Collateral. Landlord
agrees to subordinate its lien to Tenant's new purchase money financing
requirements, but only in the event that the Tenant is not in default of any
provision or covenant of this Lease.

         20. SURRENDER OF PREMISES. No act by Landlord shall be deemed an
acceptance of a surrender of the Premises, and no agreement to accept a
surrender of the Premises shall be valid unless it is in writing and signed by
Landlord. At the expiration or termination of this Lease, Tenant shall deliver
to Landlord the Premises with all improvements located therein in good repair
and condition, broom-clean, reasonable wear and tear (and condemnation and
Casualty damage not caused by Tenant, as to which Sections 13 and 14 shall
control) excepted, and shall deliver to Landlord all keys to the Premises.
Provided that Tenant has performed all of its obligations hereunder, Tenant may
remove all unattached trade fixtures, furniture, and personal property placed in
the Premises by Tenant, and shall remove such alterations, additions,
improvements, trade fixtures, personal property, equipment, wiring, and
furniture as Landlord may request. Tenant shall repair all damage caused by such
removal. All items not so removed shall be deemed to have been abandoned by
Tenant and may be appropriated, sold, stored, destroyed, or otherwise disposed
of by Landlord without notice to Tenant and without any obligation to account
for such items. The provisions of this Section 20 shall survive the end of the
Term.

         21. HOLDING OVER. If Tenant fails to vacate the Premises at the end of
the Term, then Tenant shall be a tenant at will and, in addition to all other
damages and remedies to which Landlord may be entitled for such holding over,
Tenant shall pay a daily Basic Rent equal to the 150% of the daily Basic Rent
payable during the last month of the Term for the first thirty (30) days of such
holdover period, and 200% of the daily Basic Rent payable during the last month
of the Term for any further holdover period in excess of thirty (30) days. The
provisions of this Section 21 shall not be 



                                       9
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deemed to limit or constitute a waiver of any other rights or remedies of
Landlord provided herein or at law. If Tenant fails to surrender the Premises
upon the termination or expiration of this Lease, in addition to any other
liabilities to Landlord accruing therefrom, Tenant shall protect, defend,
indemnify and hold Landlord harmless from all loss, costs (including reasonable
attorneys' fees) and liability (including consequential damages) resulting from
such failure, including, without limiting the generality of the foregoing, any
claims made by any succeeding tenant founded upon such failure to surrender, and
any lost profits to Landlord resulting therefrom.

         22. CERTAIN RIGHTS RESERVED BY LANDLORD. Provided that the exercise of
such rights does not unreasonably interfere with Tenant's access to and
occupancy of the Premises, Landlord shall have the following rights:

                  (a) To decorate and to make inspections, repairs, alterations,
         additions, changes, or improvements, whether structural or otherwise,
         in and about the Complex, or any part thereof; to enter upon the
         Premises and, during the continuance of any such work, to temporarily
         close doors, entryways, public space, and corridors in the Complex; to
         interrupt or temporarily suspend Complex services and facilities; to
         change the name of the Complex; and to change the arrangement and
         location of entrances or passageways, doors, and doorways, corridors,
         elevators, stairs, restrooms, or other public parts of the Complex;

                  (b) To take such reasonable measures as Landlord deems
         advisable for the security of the Complex and its occupants; evacuating
         the Complex for cause, suspected cause, or for drill purposes;
         temporarily denying access to the Complex; and closing the Complex
         after normal business hours and on Sundays and holidays, subject,
         however, to Tenant's right to enter when the Complex is closed after
         normal business hours under such reasonable regulations as Landlord may
         prescribe from time to time; and

                  (c) To enter the Premises at reasonable hours to show the
         Premises to prospective purchasers, lenders, or, during the last six
         (6) months of the Term, tenants.

         23. SUBSTITUTION SPACE. Landlord may, at Landlord's expense, relocate
Tenant within the Complex to space which is comparable in size, utility and
condition to the Premises provided it is located on the west side of the floor,
on the third floor or above. Such substitution space shall be comparable in
number of offices, and outside window frontage. If Landlord relocates Tenant,
Landlord shall reimburse Tenant for Tenant's reasonable out-of-pocket expenses
for moving Tenant's furniture, equipment, and supplies, including the cost to
move and replace phone and computer lines and cables, from the Premises to the
relocation space and for reprinting of a reasonable quantity of Tenant's
stationery (not to exceed a thirty (30) day supply). Upon such relocation, the
relocation space shall be deemed to be the Premises and the terms of the Lease
shall remain in full force and shall apply to the relocation space.

         24. MISCELLANEOUS.

                  (a) Landlord Transfer. Landlord may transfer any portion of
         the Complex and any of its rights under this Lease. If Landlord assigns
         its rights under this Lease, then Landlord shall thereby be released
         from any further obligations hereunder.

                  (b) Landlord's Liability. The liability of Landlord to Tenant
         for any default by Landlord under the terms of this Lease shall be
         limited to Tenant's actual direct, but not consequential, damages
         therefor and shall be recoverable only from the interest of Landlord in
         the Complex, and Landlord shall not be personally liable for any
         deficiency. This Section shall not limit any remedies which Tenant may
         have for Landlord's defaults which do not involve the personal
         liability of Landlord.

                  (c) Force Majeure. Other than for Tenant's obligations under
         this Lease that can be performed by the payment of money (e.g., payment
         of Rent and maintenance of insurance), whenever a period of time is
         herein prescribed for action to be taken by either party hereto, such
         party shall not be liable or responsible for, and there shall be
         excluded from the computation of any such period of time, any delays
         due to strikes, riots, acts of God, shortages of labor or materials,
         war, governmental laws, regulations, or restrictions, or any other
         causes of any kind whatsoever which are beyond the control of such
         party.

                  (d) Brokerage. Neither Landlord nor Tenant has dealt with any
         broker or agent in connection with the negotiation or execution of this
         Lease, other than CB Richard Ellis, Inc., acting on behalf of Landlord,
         and The Clark Group, acting on behalf of Tenant. Tenant and Landlord
         shall each indemnify the other against all costs, expenses, attorneys'
         fees, and other liability for commissions or other compensation claimed
         by any broker or agent claiming the same by, through, or under the
         indemnifying party.

                  (e) Estoppel Certificates. From time to time, but no more than
         two (2) times in each twelve (12) month time period, unless additional
         certificates are reasonably required, Tenant shall furnish to any party
         designated by Landlord, within ten days after Landlord has made a
         request therefor, a certificate signed by Tenant confirming and
         containing such factual certifications and representations as to this
         Lease as Landlord may reasonably request.

                  (f) Notices. Any notice, request, statement or other writing
         pursuant to this Lease shall be deemed to have been given if sent by
         registered or certified mail, postage prepaid, return receipt requested
         to the party at the address stated below:

                  To Landlord:        Silverbrae Holdings, Inc.
                                      999 - 18th Street, Suite 1000
                                      Denver, Colorado 80202
                                      Attn:  Garth R. D. Tait



                                       10
   11

         or to Tenant at the following address until occupancy of the Premises
         and after occupancy of the Premises by Tenant, at the Premises:

                                      Multi-Link Telecommunications, Inc.
                                      811 Lincoln Street
                                      Denver, Colorado  80203
                                      Attn:  Nigel Alexander or Shawn Stickle

         and such notice shall be deemed to have been received by the Landlord
         or Tenant, as the case may be, on the second business day after the
         date on which it shall have been so mailed.

                  (g) Separability. If any clause or provision of this Lease is
         illegal, invalid, or unenforceable under present or future laws, then
         the remainder of this Lease shall not be affected thereby and in lieu
         of such clause or provision, there shall be added as a part of this
         Lease a clause or provision as similar in terms to such illegal,
         invalid, or unenforceable clause or provision as may be possible and be
         legal, valid, and enforceable.

                  (h) Amendments; and Binding Effect. This Lease may not be
         amended except by instrument in writing signed by Landlord and Tenant.
         No provision of this Lease shall be deemed to have been waived by
         Landlord unless such waiver is in writing signed by Landlord, and no
         custom or practice which may evolve between the parties in the
         administration of the terms hereof shall waive or diminish the right of
         Landlord to insist upon the performance by Tenant in strict accordance
         with the terms hereof. The terms and conditions contained in this Lease
         shall inure to the benefit of and be binding upon the parties hereto,
         and upon their respective successors in interest and legal
         representatives, except as otherwise herein expressly provided. This
         Lease is for the sole benefit of Landlord and Tenant, and, other than
         Landlord's Mortgagee, no third party shall be deemed a third party
         beneficiary hereof.

                  (i) Quiet Enjoyment. Provided Tenant has performed all of its
         obligations hereunder, Tenant shall peaceably and quietly hold and
         enjoy the Premises for the Term, without hindrance from Landlord or any
         party claiming by, through, or under Landlord, but not otherwise,
         subject to the terms and conditions of this Lease.

                  (j) No Merger. There shall be no merger of the leasehold
         estate hereby created with the fee estate in the Premises or any part
         thereof if the same person acquires or holds, directly or indirectly,
         this Lease or any interest in this Lease and the fee estate in the
         leasehold Premises or any interest in such fee estate.

                  (k) No Offer. The submission of this Lease to Tenant shall not
         be construed as an offer, and Tenant shall not have any rights under
         this Lease unless Landlord executes a copy of this Lease and delivers
         it to Tenant.

                  (l) Entire Agreement. This Lease constitutes the entire
         agreement between Landlord and Tenant regarding the subject matter
         hereof and supersedes all oral statements and prior writings relating
         thereto. Except for those set forth in this Lease, no representations,
         warranties, or agreements have been made by Landlord or Tenant to the
         other with respect to this Lease or the obligations of Landlord or
         Tenant in connection therewith. The normal rule of construction that
         any ambiguities be resolved against the drafting party shall not apply
         to the interpretation of this Lease or any exhibits or amendments
         hereto.

                  (m) Waiver of Jury Trial. To the maximum extent permitted by
         law, Landlord and Tenant each waive right to trial by jury in any
         litigation arising out of or with respect to this Lease.

                  (n) Governing Law. This Lease shall be governed by and
         construed in accordance with the laws of the State in which the
         Premises are located.

                  (o) Joint and Several Liability. If Tenant is comprised of
         more than one party, each such party shall be jointly and severally
         liable for Tenant's obligations under this Lease.

                  (p) Financial Reports. Up to one (1) time per twelve (12)
         month period, or more frequently if required by Landlord's Mortgagee,
         within 15 days after Landlord's request, Tenant will furnish Tenant's
         most recent audited financial statements (including any notes to them)
         to Landlord, or, if no such audited statements have been prepared, such
         other financial statements (and notes to them) as may have been
         prepared by an independent certified public accountant or, failing
         those, Tenant's internally prepared financial statements. Tenant will
         discuss its financial statements with Landlord and will give Landlord
         access to Tenant's books and records in order to enable Landlord to
         verify the financial statements. Landlord will not disclose any aspect
         of Tenant's financial statements that Tenant designates to Landlord as
         confidential except (1) to Landlord's lenders or prospective purchasers
         of the Complex; (2) in litigation between Landlord and Tenant; and/or
         (3) if required by court order.

                  (q) Landlord's Fees. Whenever Tenant requests Landlord to take
         any action or give any consent required or permitted under this Lease,
         Tenant will reimburse Landlord for Landlord's reasonable costs incurred
         in reviewing the proposed action or consent, including without
         limitation reasonable attorneys', engineers' or 



                                       11
   12

         architects' fees, within 10 days after Landlord's delivery to Tenant of
         a statement of such costs. Tenant will be obligated to make such
         reimbursement without regard to whether Landlord consents to any such
         proposed action.

                  (r) General Definitions. The following terms shall have the
         following meanings: "Laws" means all federal, state, and local laws,
         rules and regulations, all court orders, all governmental directives
         and governmental orders, and all restrictive covenants affecting the
         Property, and "Law" means any of the foregoing; "Affiliate" means any
         person or entity which, directly or indirectly, controls, is controlled
         by, or is under common control with the party in question; "Tenant
         Party" shall include Tenant, any assignees claiming by, through, or
         under Tenant, any subtenants claiming by, through, or under Tenant, and
         any agents, contractors, employees, invitees of the foregoing parties;
         and "including" means including, without limitation.

                  (s) Independent Covenants. This Lease shall be construed as
         though the covenants herein between Landlord and Tenant are independent
         and not dependent and Tenant shall not be entitled to any setoff of the
         rent or other amounts owing hereunder against Landlord or to undertake
         any of Landlord's obligations if Landlord fails to perform its
         obligations set forth herein.

                  (t) List of Exhibits. All exhibits and attachments attached
         hereto are incorporated herein by this reference.


                                   
                      Addendum
                      Exhibit A-1      Outline of Premises under paragraph 1.(a).
                      Exhibit A-2      Outline of Premises under paragraph 1.(b).
                      Exhibit B        Depiction of Building
                      Exhibit C        Legal Description of Real Property
                      Exhibit D        Complex Rules and Regulations
                      Exhibit E        Parking Agreement


                  (u) Americans With Disabilities Act.

                           (1) Landlord shall, subject to reimbursement as part
                  of the Complex's Operating Costs in compliance with the
                  provisions of Section 3(c)(2), be responsible for any
                  alterations, modifications or improvements to the common areas
                  which are required under Title III of the Americans With
                  Disabilities Act ("ADA") arising subsequent to the date
                  hereof.

                           (2) Tenant shall, at Tenant's sole cost and expense,
                  be responsible for any alterations, modifications or
                  improvements to the Premises, and the acquisition of any
                  auxiliary aids, required under the ADA, including all
                  alterations, modifications or improvements required: (1) as a
                  result of Tenant (or any subtenant, assignee or
                  concessionaire) being a Public Accommodation (as defined in
                  the ADA); (2) as a result of the Premises being a Commercial
                  Facility (as defined in the ADA); (3) as a result of any
                  leasehold improvements made to the Premises by, or on behalf
                  of, Tenant or any subtenant, assignee or concessionaire
                  (whether or not Landlord's consent to such leasehold
                  improvements was obtained); or (4) as a result of the
                  employment by Tenant (or any subtenant, assignee or
                  concessionaire) of any individual with a disability.

                           (3) With respect to the use restrictions set forth in
                  this Lease, and the restrictions on assignments and subletting
                  set forth in this Lease, it is hereby specifically understood
                  and agreed that Landlord shall have no obligation to consent
                  to, or permit, a use of the Premises, or an assignment of the
                  Lease or a sublease of the Premises (collectively herein a
                  "Use Change") if such Use Change would require the making of
                  any alterations, modifications or improvements to the Premises
                  or the Common Areas, or the acquisition of any auxiliary aids,
                  required under the ADA, unless Tenant performs all such acts
                  and satisfies Landlord's requirements for financial
                  responsibility for the costs of such compliance (which may
                  include, by way of example, posting of a completion bond, or
                  establishment of an escrow account).

                           (4) With respect to any work as described in Exhibit
                  F, Tenant shall be responsible for compliance with the ADA in
                  the design and layout of the work and Landlord shall have no
                  responsibility therefor. Landlord hereby represents that it
                  has not received any notice that any of the common areas of
                  the Complex is in violation of the provisions of the ADA and
                  Landlord believes that the common areas of the Complex comply
                  with the requirements of the ADA in all material respects.

                  (v) Attorneys' Fees. If any legal action (including, without
         limitation, negotiations, civil action, arbitration, mediation, or
         administrative proceeding) is necessary as a result of any breach of
         this Lease, or is required to enforce or interpret any of the terms,
         covenants or conditions of this Lease, the substantially-prevailing
         party shall be entitled to receive from the other party all costs and
         fees incurred in connection therewith, including, without limitation,
         reasonable attorneys' fees, expert witness fees and consulting fees.

         25. OTHER PROVISIONS. LANDLORD AND TENANT EXPRESSLY DISCLAIM ANY
IMPLIED WARRANTY THAT THE PREMISES ARE SUITABLE FOR TENANT'S INTENDED COMMERCIAL
PURPOSE, AND TENANT'S OBLIGATION TO PAY RENT HEREUNDER IS NOT DEPENDENT UPON THE



                                       12
   13

CONDITION OF THE PREMISES OR THE PERFORMANCE BY LANDLORD OF ITS OBLIGATIONS
HEREUNDER, AND, EXCEPT AS OTHERWISE EXPRESSLY PROVIDED HEREIN, TENANT SHALL
CONTINUE TO PAY THE RENT, WITHOUT ABATEMENT, SETOFF OR DEDUCTION,
NOTWITHSTANDING ANY BREACH BY LANDLORD OF ITS DUTIES OR OBLIGATIONS HEREUNDER,
WHETHER EXPRESS OR IMPLIED.

         26. HAZARDOUS MATERIALS. Tenant shall not store highly flammable
materials or goods, explosives, perishable foodstuffs, contraband, live animals,
materials or goods which emit odors in or upon the Premises. The Tenant
covenants that it shall not store, use or possess nor permit the storage, use or
possession of any Hazardous Substance (hereinafter defined) upon the Premises
other than normal office products in limited quantities. Hazardous Substance for
purposes of this Lease shall mean, without limitation, any flammable explosives,
radon, radioactive materials, asbestos, urea-formaldehyde foam insulation,
polychlorinated biphenyls, petroleum and petroleum based products, methane,
hazardous materials, hazardous wastes, hazardous or toxic substances or related
materials, as defined in the Comprehensive Environmental Response, Compensation
and Liability Act of 1980, as amended (42 USC Sections 1801 et seq., Sections
6901 et seq.), the Toxic Substances Control Act, as amended (15 USC Sections
2601 et seq.), or any other similar law, rule, regulation or statute concerning
the protection of the environment (collectively "Environment Laws"). Tenant
hereby covenants and agrees, at its sole cost and expense, to indemnify, protect
and defend and save harmless the Landlord and any of its members, managers,
employees and agents from and against any and all damages, losses, liabilities,
obligations, penalties, claims, litigation, demands, defenses, judgments, suits,
actions, proceedings, costs, disbursements and/or expenses (including, without
limitation, attorneys' and experts' fees, expenses and disbursements) of any
kind or nature whatsoever which may at any time be imposed upon, incurred by or
asserted or awarded against the Landlord, its members, managers, agents or
employees relating to, resulting from or arising out of Tenant's failure to
comply with its obligations under the foregoing paragraph or Tenant's violation
of any Environmental Law with respect to its use of the Premises.
Notwithstanding any provision contained in this Lease to the contrary, the
indemnification provisions set forth in this Section 26 shall survive any
expiration or termination of this Lease.

         27. TELEPHONE AND TELECOMMUNICATIONS SERVICES.

                  (a) Tenant acknowledges and agrees that all telephone and
         telecommunications services ("Telecommunications Services") desired by
         Tenant shall be ordered and utilized at the sole expense of Tenant.
         Unless Landlord otherwise requests or consents in writing, all
         equipment, apparatus and devices, including without limitation wiring
         and cables, for the provision of Telecommunications Services (the
         "Telecommunications Equipment") shall be and remain solely in the
         Premises. Unless otherwise specifically agreed in writing, Landlord
         shall have no responsibility for the maintenance of Tenant's
         Telecommunications Equipment, nor for any wiring or other
         infrastructure to which Tenant's Telecommunications Equipment may be
         connected. Tenant agrees that, to the extent any Telecommunications
         Services are interrupted, curtailed or discontinued, Landlord shall
         have no obligation or liability with respect thereto and it shall be
         the sole obligation of Tenant, at its sole expense, to obtain
         substitute service.

                  (b) Landlord shall have the right, upon such notice as is
         practicable in the case of emergencies, and otherwise upon reasonable
         prior notice to Tenant, to interrupt or turn off telecommunications
         facilities in the event of emergency or as necessary in connection with
         repairs to the Complex or installation of telecommunications equipment
         for other tenants of the Complex.

                  (c) Any and all Telecommunications Equipment installed in the
         Premises, or elsewhere in the Complex by or on behalf of Tenant,
         including wiring and other facilities for the provision of
         Telecommunications Services, shall be removed by Tenant upon the
         expiration or earlier termination of the Term of this Lease, by Tenant
         at its sole expense or, at Landlord's election, by Landlord at Tenant's
         sole expense, with the cost thereof to be paid as Additional Rent under
         this Lease.

                  (d) If the Telecommunications Equipment is not removed within
         thirty (30) days of the termination or expiration of this Lease, the
         Telecommunications Equipment shall conclusively be deemed to have been
         abandoned and may be removed, appropriated, sold, stored, destroyed,
         otherwise disposed of, or retained and used by Landlord without notice
         to Tenant, without obligation to account therefor, and without payment
         to Tenant or credit against any amount due from Tenant to Landlord
         pursuant to this Lease. Tenant shall pay to Landlord upon demand all
         costs of any such removal, disposition and storage of the
         Telecommunications Equipment, as well as all costs to repair any damage
         to the Complex caused by such removal.

                  (e) In the event that Tenant wishes at any time to utilize the
         services of a telephone or telecommunications provider whose equipment
         is not then servicing the Complex (a "New Provider"), no such New
         Provider shall be permitted to install its lines or other equipment
         within the Complex without first securing the prior written approval of
         the Landlord, which approval may be withheld in Landlord's sole and
         absolute discretion. Landlord's approval shall not be deemed any kind
         of warranty or representation by Landlord, including, without
         limitation, any warranty or representation as to the suitability,
         competence or financial strength of the New Provider. Without
         limitation of Landlord's right to withhold consent in its sole and
         absolute discretion, Landlord may refuse to give its approval unless
         all of the following conditions are satisfied: (i) Landlord shall incur
         no expense whatsoever with respect to any aspect of the New Provider's
         provision of its services, including, without limitation, the costs of
         installation, materials and services; (ii) prior to commencement of any
         work in or about the Complex by the New Provider, the New Provider
         shall supply Landlord with such written indemnities, insurance,
         financial statements, and such other items as Landlord, in its sole and
         absolute discretion, determines to be necessary to protect its
         financial interests and the interests of the Complex related 



                                       13
   14

         to the proposed activities of the New Provider; (iii) the New Provider
         agrees in writing to abide by such rules and regulations, building and
         other codes, job site rules and such other requirements as are
         determined by Landlord, in its sole and absolute discretion, to be
         necessary to protect the interests of the Complex, the tenants in the
         Complex and Landlord; (iv) Landlord determines, in its sole and
         absolute discretion, that there is sufficient space in the Complex for
         the placement of all of the New Provider's equipment and materials; (v)
         Landlord receives from the New Provider such compensation as is
         determined by the Landlord, in its sole and absolute discretion, to
         compensate it for space used in the Complex for the storage and
         maintenance of the New Provider's equipment, for the fair market value
         of the New Provider's access to the Complex, and any costs which may be
         expected to be incurred by Landlord; and (vi) all of the foregoing
         matters are documented in a written agreement between Landlord and the
         New Provider, the form and content of which are satisfactory to
         Landlord in its sole and absolute discretion.

                  (f) Notwithstanding any provision of the preceding subsection
         to the contrary, the refusal of Landlord to grant its approval to any
         New Provider shall not be deemed a default or breach by Landlord of its
         obligations under this Lease, and in no event shall Tenant have the
         right to terminate this Lease or claim entitlement to rent abatement
         for Landlord's refusal to grant Tenant's request for approval of a New
         Provider. The provisions of this Section 27 may be enforced solely by
         Tenant and Landlord and are not for the benefit of any other party.
         Specifically, but without limitation, no telephone or
         telecommunications provider is intended to be, nor shall be deemed, a
         third party beneficiary of this Lease.

                  (g) Tenant shall not utilize any wireless communications
         equipment (other than usual and customary cellular telephones),
         including antennae and satellite receiver dishes, within the Premises
         or the Complex, without Landlord's prior written consent. Such consent
         shall be granted only in the sole and absolute discretion of the
         Landlord, and shall be conditioned in such a manner, in Landlord's sole
         and absolute discretion, so as to protect Landlord's financial interest
         and the interest of the Complex, and the other tenants therein.

         28. GUARANTY. The Guarantor hereby unconditionally and irrevocably
guarantees Tenant's performance of each and every covenant of this Lease. This
is an absolute and continuing guaranty of payment and performance, and not
solely a guaranty of collection. The Guarantor shall promptly perform or make
payment upon receiving written notice from Landlord of Tenant's failure to
comply with this Lease. If the Guarantor fails to perform or make payment after
notice from Landlord, and if any legal action (including, without limitation,
negotiations, civil action, arbitration, mediation, or administrative
proceeding) is necessary as a result such failure, then Landlord shall be
entitled to receive from the Guarantor all costs and fees incurred in connection
with enforcing this Guaranty, including, without limitation, reasonable
attorneys' fees, expert witness fees and consulting fees. The Guarantor hereby
expressly waives any right to require Landlord to first proceed against Tenant;
have Tenant joined with Guarantor in any suit arising out of this Lease; or
pursue or exhaust any other rights in Landlord's power whatsoever. The Guarantor
hereby waives any defense arising by reason of disability, lack of authority or
power, or other defense of Tenant, and shall remain liable hereon regardless of
whether Tenant is found not liable thereon for any reason including, without
limitation, disability, bankruptcy, insolvency, reorganization, dissolution, or
operation of law. It is expressly agreed that the liability of Guarantor shall
be primary and not secondary. Guarantor recognizes that Landlord is relying upon
this Guaranty and the undertakings of the Guarantor hereunder in executing this
Lease with Tenant, and further recognizes that this Guaranty is a material
inducement to Landlord in executing this Lease. The Guarantor represents and
warrants that it will benefit from Tenant's Lease with Landlord; that Guarantor
has the authority and power to unconditionally Guaranty each and every covenant
of this Lease, and that this Guaranty constitutes valid and binding obligations
of Guarantor, enforceable in accordance with its terms.

         Dated as of the date first above written.

   
                                       LANDLORD:

                                       LAKESIDE HOLDINGS, L.L.C., a Delaware 
                                       limited liability company

                                       BY:      Silverbrae Holdings, Inc., a 
                                                Colorado corporation, Agent


Date:  March 29, 1999                  By: /s/ Garth R. D. Tait
     -------------------------            -------------------------------------
                                              Garth R. D. Tait, President



                                       TENANT:

                                       MULTI-LINK TELECOMMUNICATIONS, INC., 
                                       a Colorado corporation


Date:  March 29, 1999             By: /s/ Nigel V. Alexander
     -------------------------       ------------------------------------------

                                       Its: Chief Executive Officer
                                           ------------------------------------



                                       GUARANTOR:

                                       MULTI-LINK COMMUNICATIONS,  INC.,
                                       a Colorado corporation


Date: March 29, 1999              By: /s/ Nigel V. Alexander
     -------------------------       ------------------------------------------

                                       Its: Chief Executive Officer
                                           ------------------------------------
    




                                       14
   15

                                   EXHIBIT A-1


                              [OUTLINE OF PREMISES]


   16




                                   EXHIBIT A-2


                              [OUTLINE OF PREMISES]


   17




                                    EXHIBIT B


                             [DEPICTION OF BUILDING]


   18




                                    EXHIBIT C


                      [LEGAL DESCRIPTION OF REAL PROPERTY]



PARCEL 1:

A PARCEL OF LAND LOCATED IN THE NORTHEAST 1/4 OF SECTION 24, TOWNSHIP 3 SOUTH,
RANGE 69 WEST OF THE 6TH PRINCIPAL MERIDIAN, DESCRIBED AS FOLLOWS:

COMMENCING AT THE NORWEST CORNER OF THE NORTHEAST 1/4 OF SAID SECTION 24; THENCE
SOUTH 00 DEGREES 04 MINUTES 00 SECONDS EAST ALONG THE WEST LINE OF THE NORTHEAST
1/4 OF SAID SECTION 24, A DISTANCE OF 334.77 FEET; THENCE SOUTH 89 DEGREES 59
MINUTES 30 SECONDS EAST, A DISTANCE OF 60.00 FEET TO THE INTERSECTION OF THE
EAST LINE OF HARLAN STREET WITH THE SOUTH LINE OF COLORADO DEPARTMENT OF
TRANSPORTATION RIGHT OF WAY AS DESCRIBED IN BOOK 1875 AT PAGE 135 FROM WHICH THE
NORTHWEST CORNER OF THE NORTHEAST 1/4 OF SAID SECTION 24 BEARS NORTH 10 DEGREES
13 MINUTES 30 SECONDS WEST, A DISTANCE OF 340.10 FEET TO THE TRUE POINT OF
BEGINNING;

THENCE CONTINUING SOUTH 89 DEGREES 59 MINUTES 30 SECONDS EAST ALONG THE SOUTH
LINE OF SAID DESCRIBED PARCEL, A DISTANCE OF 932.50 FEET; THENCE SOUTH 00
DEGREES 00 MINUTES 00 SECONDS WEST, A DISTANCE OF 32.70 FEET; THENCE SOUTH 90
DEGREES 00 MINUTES 00 SECONDS EAST, A DISTANCE OF 50.27 FEET; THENCE SOUTH 00
DEGREES 00 MINUTES 00 SECONDS WEST, A DISTANCE OF 222.44 FEET TO A POINT ON THE
NORTH SHORE OF LAKE RHODA; THENCE SOUTH 63 DEGREES 48 MINUTES 30 SECONDS WEST, A
DISTANCE OF 9.46 FEET; THENCE SOUTH 82 DEGREES 38 MINUTES 00 SECONDS WEST, A
DISTANCE OF 184.00 FEET; THENCE NORTH 82 DEGREES 24 MINUTES 30 SECONDS WEST, A
DISTANCE OF 119.00 FEET; THENCE SOUTH 62 DEGREES 19 MINUTES 00 SECONDS WEST, A
DISTANCE OF 87.00 FEET; THENCE SOUTH 05 DEGREES 53 MINUTES 30 SECONDS WEST, A
DISTANCE OF 74.00 FEET; THENCE SOUTH 23 DEGREES 13 MINUTES 30 SECONDS EAST, A
DISTANCE OF 132.00 FEET; THENCE SOUTH 09 DEGREES 19 MINUTES 30 SECONDS EAST, A
DISTANCE OF 42.00 FEET; THENCE SOUTH 07 DEGREES 22 MINUTES 00 SECONDS WEST, A
DISTANCE OF 154.00 FEET; THENCE SOUTH 46 DEGREES 22 MINUTES 30 SECONDS WEST, A
DISTANCE OF 50.00 FEET; THENCE SOUTH 83 DEGREES 09 MINUTES 00 SECONDS WEST, A
DISTANCE OF 125.00 FEET; THENCE NORTH 00 DEGREES 04 MINUTES 00 SECONDS WEST, A
DISTANCE OF 28.99 FEET; THENCE ALONG THE ARC OF A CURVE TO THE RIGHT HAVING A
RADIUS OF 168.15 FEET, A DISTANCE OF 21.66 FEET (THE CHORD OF WHICH BEARS NORTH
88 DEGREES 06 MINUTES 32 SECONDS WEST 21.64 FEET); THENCE NORTH 84 DEGREES 25
MINUTES 10 SECONDS WEST, A DISTANCE OF 72.00 FEET; THENCE ALONG THE ARC OF A
CURVE TO THE RIGHT (THE CHORD OF WHICH BEARS NORTH 61 DEGREES 28 MINUTES 39
SECONDS WEST 168.55 FEET) HAVING A RADIUS OF 216.21 FEET, A DISTANCE OF 173.14
FEET; THENCE NORTH 38 DEGREES 32 MINUTES 08 SECONDS WEST, A DISTANCE OF 42.11
FEET; THENCE ALONG THE ARC OF A CURVE TO THE LEFT HAVING A RADIUS OF 63.57 FEET,
A DISTANCE OF 48.64 FEET (THE CHORD OF WHICH BEARS NORTH 60 DEGREES 27 MINUTES
23 SECONDS WEST 47.47 FEET), TO A POINT OF COMPOUND CURVE; THENCE ALONG THE ARC
OF A CURVE CONCAVE TO THE LEFT HAVING A RADIUS OF 122.00 FEET, A DISTANCE OF
208.01 FEET (THE CHORD OF WHICH BEARS SOUTH 48 DEGREES 46 MINUTES 41 SECONDS
WEST 183.72 FEET); THENCE SOUTH 89 DEGREES 56 MINUTES 00 SECONDS WEST, A
DISTANCE OF 20.00 FEET TO A POINT ON THE EAST RIGHT-OF-WAY OF HARLAN STREET;
THENCE NORTH 00 DEGREES 04 MINUTES 00 SECONDS WEST, ALONG SAID EAST RIGHT-OF-WAY
LINE, A DISTANCE OF 693.74 FEET TO THE TRUE POINT OF BEGINNING, ALSO KNOWN AS
TRACT B, LAKESIDE OFFICE PARK MINOR SUBDIVISION, FILING NO. 1, COUNTY OF
JEFFERSON, STATE OF COLORADO, CONTAINING 11.890 ACRES, MORE OR LESS.

PARCEL 2:

A PARCEL OF LAND LOCATED IN THE NORTHEAST 1/4 OF SECTION 24, TOWNSHIP 3 SOUTH,
RANGE 69 WEST OF THE 6TH PRINCIPAL MERIDIAN, MORE PARTICULARLY DESCRIBED AS
FOLLOWS:

BEGINNING AT A POINT OF INTERSECTION OF THE SOUTH RIGHT-OF-WAY LINE OF
INTERSTATE HIGHWAY I-70 AND THE EAST RIGHT-OF-WAY OF HARLAN STREET, FROM WHENCE
THE NORTHWEST CORNER OF THE NORTHEAST 1/4 OF SAID SECTION 24 BEARS NORTH 10
DEGREES 13 MINUTES 30 SECONDS WEST A DISTANCE OF 340.10 FEET; THENCE SOUTH 00
DEGREES 04 MINUTES 00 SECONDS EAST 693.74 FEET ALONG THE EAST RIGHT-OF-WAY LINE
OF SAID HARLAN STREET TO THE TRUE POINT OF BEGINNING; THENCE NORTH 89 DEGREES 56
MINUTES 00 SECONDS EAST A DISTANCE OF 20.00 FEET TO A POINT; THENCE ALONG THE
ARC OF A CURVE TO THE RIGHT HAVING A RADIUS OF 122.00 FEET A DISTANCE OF 208.01
FEET (THE CHORD OF WHICH BEARS NORTH 48 DEGREES 46 MINUTES 41 SECONDS EAST
183.72 FEET) TO A POINT OF COMPOUND CURVE; THENCE ALONG THE ARC OF A CURVE TO
THE RIGHT HAVING A RADIUS OF 63.57 FEET A DISTANCE OF 48.64 FEET (THE CHORD OF
WHICH BEARS SOUTH 60 DEGREES 27 MINUTES 23 SECONDS EAST 47.47 FEET) TO A POINT;
THENCE SOUTH 38 DEGREES 32 MINUTES 08 SECONDS 


   19

EAST 42.11 FEET TO A POINT; THENCE ALONG THE ARC OF A CURVE TO THE LEFT HAVING A
RADIUS OF 216.21 FEET A DISTANCE OF 173.14 FEET (THE CHORD OF WHICH BEARS SOUTH
61 DEGREES 28 MINUTES 39 SECONDS EAST 168.55 FEET) TO A POINT; THENCE SOUTH 84
DEGREES 25 MINUTES 10 SECONDS EAST A DISTANCE OF 72.00 FEET TO A POINT; THENCE
ALONG THE ARC OF A CURVE TO THE LEFT HAVING A RADIUS OF 168.15 FEET A DISTANCE
OF 21.66 FEET (THE CHORD OF WHICH BEARS SOUTH 88 DEGREES 06 MINUTES 32 SECONDS
EAST 21.64 FEET) TO A POINT; THENCE SOUTH 00 DEGREES 04 MINUTES 00 SECONDS EAST
335.79 FEET TO A POINT; THENCE SOUTH 89 DEGREES 56 MINUTES 00 SECONDS WEST A
DISTANCE OF 467.10 FEET TO A POINT ON THE EAST RIGHT-OF-WAY OF SAID HARLAN
STREET; THENCE NORTH 00 DEGREES 04 MINUTES 00 SECONDS WEST A DISTANCE OF 359.80
FEET ALONG SAID EAST RIGHT-OF-WAY TO THE TRUE POINT OF BEGINNING, ALSO KNOWN AS
TRACT C, LAKESIDE OFFICE PARK MINOR SUBDIVISION, FILING NO. 1, COUNTY OF
JEFFERSON, STATE OF COLORADO, CONTAINING 4.241 ACRES, MORE OR LESS.

PARCEL 3:

A RECIPROCAL EASEMENT FOR INGRESS AND EGRESS AS DESCRIBED IN AGREEMENT FOR
CROSS-EASEMENTS AND CREATION OF COVENANTS AS RECORDED NOVEMBER 2, 1993 UNDER
RECEPTION NO. 93179075, COUNTY OF JEFFERSON, STATE OF COLORADO.


   20

                                    EXHIBIT D


                         BUILDING RULES AND REGULATIONS


         The following rules and regulations shall apply to the Premises, the
Building, the parking garage associated therewith, and the appurtenances
thereto:

         1. Sidewalks, doorways, vestibules, halls, stairways, and other similar
areas shall not be obstructed by tenants or used by any tenant for purposes
other than ingress and egress to and from their respective leased premises and
for going from one to another part of the Building.

         2. Plumbing, fixtures and appliances shall be used only for the
purposes for which designed, and no sweepings, rubbish, rags or other unsuitable
material shall be thrown or deposited therein. Damage resulting to any such
fixtures or appliances from misuse by a tenant or its agents, employees or
invitees, shall be paid by such tenant.

         3. No signs, advertisements or notices shall be painted or affixed on
or to any windows or doors or other part of the Building without the prior
written consent of Landlord. No nails, hooks or screws shall be driven or
inserted in any part of the Building except by Building maintenance personnel.
No curtains or other window treatments shall be placed between the glass and the
Building standard window treatments.

         4. Landlord shall provide and maintain an alphabetical directory for
all tenants in the main lobby of the Building. Landlord shall provide Tenant
with two lines on said directory.

         5. Landlord shall provide all door locks in each tenant's leased
premises, at the cost of such tenant, and no tenant shall place any additional
door locks in its leased premises without Landlord's prior written consent.
Landlord shall furnish to each tenant a reasonable number of keys to such
tenant's leased premises, at such tenant's cost, and no tenant shall make a
duplicate thereof.

         6. Movement in or out of the Building of furniture or office equipment,
or dispatch or receipt by tenants of any bulky material, merchandise or
materials which require use of elevators or stairways, or movement through the
Building entrances or lobby shall be conducted under Landlord's supervision at
such times and in such a manner as Landlord may reasonably require. Each tenant
assumes all risks of and shall be liable for all damage to articles moved and
injury to persons or public engaged or not engaged in such movement, including
equipment, property and personnel of Landlord if damaged or injured as a result
of acts in connection with carrying out this service for such tenant.

         7. Landlord may prescribe weight limitations and determine the
locations for safes and other heavy equipment or items, which shall in all cases
be placed in the Building so as to distribute weight in a manner acceptable to
Landlord which may include the use of such supporting devices as Landlord may
require. All damages to the Building caused by the installation or removal of
any property of a tenant, or done by a tenant's property while in the Building,
shall be repaired at the expense of such tenant.

         8. Corridor doors, when not in use, shall be kept closed. Nothing shall
be swept or thrown into the corridors, halls, elevator shafts or stairways. No
birds or animals shall be brought into or kept in, on or about any tenant's
leased premises. except for seeing eye dogs to assist with a handicap
individual. No portion of any tenant's leased premises shall at any time be used
or occupied as sleeping or lodging quarters.

         9. Tenant shall cooperate with Landlord's employees in keeping its
leased premises neat and clean. Tenants shall not employ any person for the
purpose of such cleaning other than the Building's cleaning and maintenance
personnel.

         10. To ensure orderly operation of the Building, no ice, mineral or
other water, towels, newspapers, etc. shall be delivered to any leased area
except by persons approved by Landlord.

         11. Tenant shall not make or permit any vibration or improper,
objectionable or unpleasant noises or odors in the Building or otherwise
interfere in any way with other tenants or persons having business with them.

         12. No machinery of any kind (other than normal office equipment) shall
be operated by any tenant on its leased area without Landlord's prior written
consent, nor shall any tenant use or keep in the Building any flammable or
explosive fluid or substance.

         13. Landlord will not be responsible for lost or stolen personal
property, money or jewelry from tenant's leased premises or public or common
areas regardless of whether such loss occurs when the area is locked against
entry or not.

         14. No vending or dispensing machines of any kind may be maintained in
any leased premises without the prior written permission of Landlord.

         15. Tenant shall not conduct any activity on or about the Premises or
Building which will draw pickets, demonstrators, or the like.

         16. All vehicles are to be currently licensed, in good operating
condition, parked for business purposes having to do with Tenant's business
operated in the Premises, parked within designated parking spaces, one vehicle
to each space. No vehicle shall be parked as a "billboard" vehicle in the
parking lot. Any vehicle parked improperly may be towed away. Tenant, Tenant's
agents, employees, vendors and customers who do not operate or park their
vehicles as required shall subject the vehicle to being towed at the expense of
the owner or driver. Tenant shall indemnify, hold and save harmless Landlord of
any liability arising from the towing or booting of any vehicles belonging to a
Tenant Party.


   21












                                 LEASE AGREEMENT


                                     BETWEEN


                           LAKESIDE HOLDINGS, L.L.C.,
                                   AS LANDLORD


                                       AND


                      MULTI-LINK TELECOMMUNICATIONS, INC.,
                                    AS TENANT





                              DATED: MARCH 29, 1999



   22

                                TABLE OF CONTENTS




                                                                                                               Page
                                                                                                               ----


                                                                                                            
1.       Lease Grant ..........................................................................................   1
2.       Term .................................................................................................   1
3.       Rent .................................................................................................   1
         (a)      Basic Rent ..................................................................................   1
         (b)      Payment .....................................................................................   1
         (c)      Operating Costs .............................................................................   2
4.       Delinquent Payment; Handling Charges .................................................................   4
5.       Security Deposit .....................................................................................   4
6.       Landlord's Obligations ...............................................................................   4
         (a)      Services ....................................................................................   4
         (b)      Excess Utility Use ..........................................................................   5
         (c)      Restoration of Services; Abatement ..........................................................   5
7.       Improvements; Alterations; Repairs; Maintenance ......................................................   6
         (a)      Improvements; Alterations ...................................................................   6
         (b)      Repairs; Maintenance ........................................................................   6
         (c)      Performance of Work .........................................................................   6
         (d)      Mechanic's Liens ............................................................................   6
8.       Use ..................................................................................................   6
9.       Assignment and Subletting ............................................................................   7
         (a)      Transfers; Consent ..........................................................................   7
         (b)      Cancellation ................................................................................   7
         (c)      Additional Compensation .....................................................................   8
10.      Insurance; Waivers; Subrogation; Indemnity ...........................................................   8
         (a)      Insurance ...................................................................................   8
         (b)      Waiver of Negligence; No Subrogation ........................................................   8
         (c)      Tenant's Indemnity ..........................................................................   8
11.      Subordination; Attornment; Notice to Landlord's Mortgagee ............................................   9
         (a)      Subordination ...............................................................................   9
         (b)      Attornment ..................................................................................  10
         (c)      Notice to Landlord's Mortgagee ..............................................................  10
12.      Rules and Regulations ................................................................................  10
13.      Condemnation .........................................................................................  10
         (a)      Total Taking ................................................................................  10
         (b)      Partial Taking - Tenant's Rights ............................................................  10
         (c)      Partial Taking - Landlord's Rights ..........................................................  10
         (d)      Award .......................................................................................  10
14.      Fire or Other Casualty ...............................................................................  10
         (a)      Repair Estimate..............................................................................  10
         (b)      Landlord's and Tenant's Rights ..............................................................  11
         (c)      Landlord's Rights ...........................................................................  11
         (d)      Repair Obligation ...........................................................................  11
15.      Personal Property Taxes ..............................................................................  11
16.      Events of Default ....................................................................................  11
17.      Remedies .............................................................................................  12
18.      Payment by Tenant; Non-Waiver ........................................................................  12
         (a)      Payment by Tenant............................................................................  12
         (b)      No Waiver ...................................................................................  13
19.      Landlord's Lien ......................................................................................  13
20.      Surrender of Premises ................................................................................  13
21.      Holding Over .........................................................................................  13
22.      Certain Rights Reserved by Landlord ..................................................................  14
23.      Substitution Space ...................................................................................  14
24.      Miscellaneous ........................................................................................  14
         (a)      Landlord Transfer ...........................................................................  14



   23



                                                                                                          
         (b)      Landlord's Liability ........................................................................  14
         (c)      Force Majeure ...............................................................................  14
         (d)      Brokerage ...................................................................................  15
         (e)      Estoppel Certificates........................................................................  15
         (f)      Notices......................................................................................  15
         (g)      Separability ................................................................................  15
         (h)      Amendments; and Binding Effect ..............................................................  15
         (i)      Quiet Enjoyment .............................................................................  15
         (j)      No Merger ...................................................................................  16
         (k)      No Offer ....................................................................................  16
         (l)      Entire Agreement ............................................................................  16
         (m)      Waiver of Jury Trial ........................................................................  16
         (n)      Governing Law ...............................................................................  16
         (o)      Joint and Several Liability .................................................................  16
         (p)      Financial Reports ...........................................................................  16
         (q)      Landlord's Fees .............................................................................  16
         (r)      General Definitions .........................................................................  16
         (s)      Independent Covenants .......................................................................  16
         (t)      List of Exhibits ............................................................................  17
         (u)      Americans With Disabilities Act .............................................................  17
         (v)      Attorneys' Fees..............................................................................  17
25.      Other Provisions .....................................................................................  18
26.      Hazardous Materials...................................................................................  18
27.      Telephone and Telecommunications Services.............................................................  18
28.      Guaranty .............................................................................................  20


ADDENDUM
EXHIBIT A-1       Outline of Premises under paragraph 1.(a).
EXHIBIT A-2       Outline of Premises under paragraph 1.(b).
EXHIBIT B                  Depiction of Building
EXHIBIT C                  Legal Description of Real Property
EXHIBIT D                  Complex Rules and Regulations
EXHIBIT E                  Parking Agreement


                                    ADDENDUM

         THIS ADDENDUM, made as of the 29th day of March, 1999, is among
LAKESIDE HOLDINGS, L.L.C. a Delaware limited liability company, MULTI-LINK
TELECOMMUNICATIONS, INC., a Colorado corporation ("Tenant"), and MULTI-LINK
COMMUNICATIONS, a Colorado corporation ("Guarantor"). Landlord, Tenant and
Guarantor have executed simultaneously with this Addendum that certain Lease
(the "Lease") pertaining to certain space as depicted in Exhibit A-1, in the
building commonly known as Lakeside Plaza Building and located at 4704 Harlan
Street, Denver, Colorado 80212. In the event of any conflict between the
provisions of this Addendum and the provisions of the other portions of the
lease, the provisions of this Addendum shall control. The capitalized terms used
herein and not defined herein shall have the same meanings used in the other
portions of the Lease. Landlord and Tenant hereby agree that the Lease is
amended and supplemented as follows:

         29. COMPLETION OF PREMISES. Landlord shall, at its own cost and
expense, in a good and workmanlike manner, cause the Premises to be improved and
completed in accordance with the plans and specifications attached as Exhibit
A-1, which are mutually agreed upon by Landlord and Tenant (such work being
herein called "Landlord's Work"). Landlord reserves the right, however: (i) to
make substitutions of material or components of equivalent grade and quality
when and if any specified material or component shall not be readily or
reasonably available, and (ii) to make changes necessitated by conditions met in
the course of construction, provided that Tenant's approval of any substantial
change shall first be obtained (which approval shall not be unreasonably
withheld or delayed so long as there shall be general conformity with the Final
Layout Plans). Tenant shall by notice to Landlord designate a single individual
who Tenant agrees shall be available to meet and consult with Landlord at the
Premises as Tenant's representative respecting the matters which are subject to
this Section, and who, as between Landlord and Tenant, shall have the power to
legally bind Tenant, in making requests for changes, giving approval of plans or
work, giving directions to Landlord or the like, under this Section; and any
notice or delivery given to such person personally or at his place of business
shall have the same effect as a notice or delivery given to Tenant.

         If Landlord shall, for any reason (including, without limitation, fail
to complete the work, if any, required to be done by Landlord under this
Section) or fail to make available to Tenant possession of the Premises on or
before the Commencement Date or any other date, Landlord shall not be subject to
any liability for such failure nor for any failure to timely complete any work.
Under such circumstances, Tenant's obligations to pay Basic Rent and Additional
Rent shall not commence until Landlord makes possession available; and such
failure to make available to Tenant possession of the Premises on or before the
Commencement Date or any other date or to timely complete any work, shall not in
any other way affect the validity or continuance of this Lease, nor the Term or
the obligations of Tenant hereunder. Such deferral of Rent shall be Tenant's
sole and exclusive right and remedy with respect to any such failure. There
shall be no deferral of Rent, however, if any such failure is caused in whole or
part by any act or omission of Tenant, its agents, servants, employees or
contractors, which has the effect of hindering or delaying Landlord's delivery
of possession or the timely 

   24

completion of any work to be done by Landlord (hereinafter a "Tenant Delay")
including, without limitation, (a) any delay which is caused by changes
requested by Tenant in the work to be performed by Landlord in readying the
Premises for Tenant's occupancy, (b) any delay, caused by Tenant, in furnishing
materials or procuring labor required to be furnished or procured for the
completion of the Premises, or (c) any delay which is caused by any failure by
Tenant, without regard to any grace period applicable thereto, promptly to
furnish to Landlord any required information, approval or consent or caused by
any good faith reluctance on the part of Landlord to approve any information
required to be submitted by Tenant and approved by Landlord, or (d) any delay
which is caused by the performance of any work or activity in the Premises by
Tenant or any of its employees, agents or contractors. Tenant also shall pay to
Landlord, within 10 days after receipt of demand made from time to time, a sum
equal to any additional cost to Landlord in completing the Premises resulting
from any Tenant Delay.

         30. SUBSTITUTE PREMISES.

                  (a) Initial Public Offering. Tenant shall use its best efforts
         to complete an initial public offering ("IPO") of its common stock to
         raise not less than $5,000,000.00 of additional capital. Tenant shall
         keep Landlord fully apprised of the progress, status and completion of
         the IPO and within two business days after the completion of the IPO
         Tenant shall provide evidence reasonably satisfactory to the Landlord
         of Tenant's receipt of funds generated from the IPO. Provided that
         Tenant delivers the IPO Notice to Landlord on or before June 30,1999
         evidencing that Tenant has received not less than $5,000,000 of
         additional capital, and provided that Tenant has performed all of its
         obligations under this Lease, Landlord and Tenant agree that the office
         space (the "Substitute Premises") consisting of approximately 6,059
         rentable square feet on the fourth floor of the Building as depicted on
         the plan attached as Exhibit A-2 shall be substituted for the initial
         Premises described in Section 1 above ("Initial Premises") as the
         Premises hereunder pursuant to the provisions of this Section 30;
         provided, however, that in the event Landlord has entered into an
         agreement with a third party (not affiliated with Landlord) for the
         lease of any portion of the Substitute Premises (a "Third Party Lease")
         the Substitute Premises will not be substituted for the Initial
         Premises and Tenant shall have the option to substitute the Alternative
         Substitute Premises for the Initial Premises pursuant to the provisions
         of Section 31 below.

                  (b) Completion of Substitute Premises.

                           (i) Upon the occurrence of all of the conditions set
                  forth in Section 30(a) for the substitution of the Substitute
                  Premises for the Initial Premises, Landlord shall, at its own
                  cost and expense, in a good and workmanlike manner, cause the
                  Substitute Premises to be improved and completed in accordance
                  with the plans and specifications attached as Exhibit A-2 (the
                  "Final Substitute Premises Layout Plans") which have been
                  mutually agreed upon by Landlord and Tenant (such work being
                  herein called "Landlord's Substitute Premises Work"). Landlord
                  reserves the right, however: (i) to make substitutions of
                  material or components of equivalent grade and quality when
                  and if any specified material or component shall not be
                  readily or reasonably available, and (ii) to make changes
                  necessitated by conditions met in the course of construction,
                  provided that Tenant's approval of any substantial change
                  shall first be obtained (which approval shall not be
                  unreasonably withheld or delayed so long as there shall be
                  general conformity with the Final Substitute Premises Layout
                  Plans). Tenant shall by notice to Landlord designate a single
                  individual who Tenant agrees shall be available to meet and
                  consult with Landlord at the Substitute Premises as Tenant's
                  representative respecting the matters which are subject to
                  this Section, and who, as between Landlord and Tenant, shall
                  have the power to legally bind Tenant, in making requests for
                  changes, giving approval of plans or work, giving directions
                  to Landlord or the like, under this Section; and any notice or
                  delivery given to such person personally or at his place of
                  business shall have the same effect as a notice or delivery
                  given to Tenant.

                           (ii) If Landlord shall, for any reason (including,
                  without limitation, fail to complete the work, if any,
                  required to be done by Landlord under this Section) or fail to
                  make available to Tenant possession of the Substitute
                  Premises, Landlord shall not be subject to any liability for
                  such failure nor for any failure to timely complete any work.
                  Under such circumstances, Tenant's obligations to pay Basic
                  Rent and Additional Rent for the Substitute Premises shall not
                  commence until Landlord makes possession available; and such
                  failure to make available to Tenant possession of the
                  Substitute Premises shall not in any other way affect the
                  validity or continuance of this Lease, nor the Term or the
                  obligations of Tenant hereunder. Such deferral of Rent
                  pertaining to the Substitute Premises shall be Tenant's sole
                  and exclusive right and remedy with respect to any such
                  failure. There shall be no deferral of Rent pertaining to the
                  Substitute Premises, however, if any such failure is caused in
                  whole or part by any act or omission of Tenant, its agents,
                  servants, employees or contractors, which has the effect of
                  hindering or delaying Landlord's delivery of possession or the
                  timely completion of any work to be done by Landlord
                  (hereinafter a "Tenant Substitute Premises Delay") including,
                  without limitation, (a) any delay which is caused by changes
                  requested by Tenant in the work to be performed by Landlord in
                  readying the Substitute Premises for Tenant's occupancy, (b)
                  any delay which is caused by any failure by Tenant, without
                  regard to any grace period applicable thereto, promptly to
                  furnish to Landlord any required information, approval or
                  consent or caused by any good faith reluctance on the part of
                  Landlord to approve any information required to be submitted
                  by Tenant and approved by Landlord, or (c) any delay which is
                  caused by the performance of any work or activity in the
                  Substitute Premises by Tenant or any of its employees, agents
                  or contractors. Tenant also shall pay to Landlord, within ten
                  days after receipt of demand made from time to time, a sum
                  equal to any additional cost to Landlord in completing the
                  Substitute Premises resulting from any Tenant Substitute
                  Premises Delay.

                  (c) Tenant agrees that on or before the ten (10) business days
         to occur after the date Landlord notifies the Tenant that the
         Substitute Premises are available for Tenant's occupancy, that Tenant
         shall 


   25

         completely vacate the Initial Premises in compliance with the
         requirements set forth in Section 30. As of the date the Substitute
         Premises are available for Tenant's occupancy (the "Substitute Premises
         Commencement Date"), the Substitute Premises shall constitute the
         Premises for all purposes under this Lease and subject to the terms and
         conditions set forth herein subject to the following exceptions:

                           (i) Term. The Term of this Lease shall be extended
                  for a period of seventy-eight (78) months, commencing on the
                  Substitute Premises Commencement Date, and expiring at 5:00
                  p.m., on the last day of the seventy-eighth (78th) month
                  thereafter. If the Substitute Premises Commencement Date does
                  not occur on the first day of a calendar month, then the Term
                  shall be extended by the number of days between the Substitute
                  Premises Commencement Date and the first date of the next
                  month.

                           (ii) Rent.

                                    [A] BASIC RENT. The Basic Rent for the
                           Substitute Premises shall be the following amounts
                           for the following periods of time commencing on the
                           Substitute Premises Commencement Date:



                                    Time Period           Annual Basic Rent          Monthly Basic Rent
                                    -----------           -----------------          ------------------

                                                                                     
                                    Months 1- 6:             $      00.00               $    00.00

                                    Months 7-30:             $ 101,488.25               $ 8,457.35

                                    Months 31-42:            $ 104,517.72               $ 8,709.81

                                    Months 43-78:            $ 107,547.25               $ 8,962.27


                                    [B] ADDITIONAL RENT. Tenant's Proportionate
                           Share for determining Tenant's obligation to pay
                           Additional Rent pursuant to the provisions of Section
                           3(c) shall, as of the Substitute Commencement Date,
                           be increased to 4.655%, which is the percentage
                           obtained by dividing the rentable area of the
                           Substitute Premises, which is stipulated to be 6,059
                           rentable square feet by the total number of square
                           feet of area in the Complex, which is stipulated to
                           be 130,150 rentable square feet (being 95% of the
                           rentable area of the office space in the Complex).

                  (d) Refund of Basic Rent. Within thirty (30) days after the
         Substitute Premises Commencement Date, Landlord shall reimburse Tenant
         for the amount of any Basic Rent paid by Tenant for the Initial
         Premises for that time period occurring after the Substitute Premises
         Commencement Date.

         31. ALTERNATE SUBSTITUTE PREMISES.

                  (a) In the event Tenant delivers the IPO Notice pursuant to
         the provisions of Section 30 evidencing that Tenant has received not
         less than $5,000,000 of additional capital and some portion of the
         Substitute Premises is subject to a Third Party Lease, Landlord shall
         use reasonable efforts to locate approximately 6,059 contiguous
         rentable square feet within the Building. In the event the Landlord is
         able to identify such space available for Tenant's use in the Building
         on or before July 31, 1999, Landlord shall deliver written notice
         ("Notice of Availability") to Tenant together with a diagram depicting
         the location and dimensions of such space (the "Alternative Substitute
         Premises"). Tenant shall have the right ("Right to Substitute"), upon
         and subject to all the terms and conditions set forth in this Section
         to substitute the Alternative Substitute Premises for the Initial
         Premises provided that within five (5) business days after Landlord
         gives Tenant the Notice of Availability, Tenant, by written notice to
         Landlord ("Notice of Acceptance"), elects to exercise its Right to
         Substitute.

                  (b) Completion of Alternative Substitute Premises. In the
         event Tenant exercises its Right to Substitution:

                           (i) Alternative Substitute Premises Information.
                  Landlord shall, within five (5) business days after its
                  receipt of the Notice of Acceptance deliver to Tenant such
                  plans and other information with respect to the Alternative
                  Substitute Premises and the Building as Tenant may reasonably
                  require for the preparation of layout plans for the
                  Alternative Substitute Premises.

                           (ii) Tenant's Plans. Tenant shall prepare and, not
                  later than thirty (30) days after delivery of Notice of
                  Acceptance, shall deliver to Landlord one mylar and two black
                  line prints of complete and final architectural working
                  drawings (which shall be 1/8" scale) and three copies of
                  specifications, prepared by an architect or space planner
                  approved by Landlord ("Tenant's Alternative Substitute
                  Premises Layout Plans") for the construction and finishing of
                  the Alternative Substitute Premises for Tenant's occupancy.
                  Tenant's Alternative Substitute Premises Layout Plans shall be
                  signed and sealed by an architect licensed by and registered
                  in the State of Colorado, shall conform to all applicable laws
                  and requirements of public authorities and insurance
                  underwriters' requirements. Tenant's Alternative Substitute
                  Premises Layout Plans shall be subject to Landlord's review
                  and written approval, which approval shall not be unreasonably
                  withheld, and such plans shall be deemed modified to take
                  account 



                                       27
   26

                  of any changes reasonably required by Landlord. Tenant's
                  Alternative Substitute Premises Layout Plans as approved by
                  Landlord and with the aforesaid modifications, if any, are
                  herein called the "Final Alternative Substitute Premises
                  Layout Plans". Concurrently with delivery of Tenant's
                  Alternative Substitute Premises Layout Plans to Landlord,
                  Tenant shall by notice to Landlord in writing designate a
                  single individual who Tenant agrees shall be available to meet
                  and consult with Landlord at the Alternative Substitute
                  Premises as Tenant's representative respecting the matters
                  which are the subject of this Section 31 and who, as between
                  Landlord and Tenant, shall have the power to legally bind
                  Tenant, in making requests for changes, giving approval of
                  plans or work, giving directions to Landlord or the like,
                  under this Section 31; and any notice or delivery given to
                  such person personally or at his place of business shall have
                  the same effect as a notice or delivery given to Tenant.

                           (iii) Engineering Plans. Landlord shall direct its
                  engineers to prepare at Landlord's expense and, not later than
                  15 days after approval by Landlord of the Final Alternative
                  Substitute Premises Layout Plans, shall deliver to Tenant
                  mechanical, electrical and fire protection engineering
                  drawings and specifications ("Alternative Substitute Premises
                  Engineering Plans"), based on the Final Alternative Substitute
                  Premises Layout Plans (and such pertinent additional
                  information as shall have been submitted by Tenant with
                  Tenant's Alternative Substitute Premises Layout Plans or as
                  requested by Landlord), as may be required to complete the
                  Alternative Substitute Premises in accordance with the Final
                  Alternative Substitute Premises Layout Plans. Within seven
                  days after submission to Tenant by Landlord of the Alternative
                  Substitute Premises Engineering Plans, Tenant shall give its
                  written approval thereof if they are in substantial conformity
                  with or a direct extension of the Final Alternative Substitute
                  Premises Layout Plans, otherwise such approval shall not be
                  unreasonably withheld; however, the Alternative Substitute
                  Premises Engineering Plans shall be deemed to have been
                  approved by Tenant unless Tenant shall have notified Landlord
                  in writing to the contrary within seven days of their receipt
                  by Tenant, stating in which respects such plans fail to
                  conform with the Final Alternative Substitute Premises Layout
                  Plans. The Alternative Substitute Premises Engineering Plans
                  shall be deemed to have been approved by Tenant if they are
                  returned by Tenant with specified changes noted and such
                  changes are made, whether or not approval is thereafter
                  specifically noted on the Alternative Substitute Premises
                  Engineering Plans so changed.

                           (iv) Completion by Landlord. Landlord shall, in a
                  good and workmanlike manner, cause the Alternative Substitute
                  Premises to be improved and completed in accordance with the
                  Alternative Substitute Premises Final Layout Plans and the
                  Alternative Substitute Premises Engineering Plans (the "Tenant
                  Alternative Substitute Premises Work") (such plans are
                  hereinafter together called the "Alternative Substitute
                  Premises Construction Plans"). Landlord reserves the right
                  however: (i) to make substitutions of material or components
                  of equivalent grade and quality when and if any specified
                  material or component shall not be readily or reasonably
                  available, and (ii) to make changes necessitated by conditions
                  met in the course of construction, provided that Tenant's
                  approval of any substantial change shall first be obtained
                  (which approval shall not be unreasonably withheld or delayed
                  so long as there shall be general conformity with the Final
                  Alternative Substitute Premises Layout Plans). The Tenant
                  Alternative Substitute Premises Work shall be furnished,
                  installed and performed by Landlord for an amount (hereinafter
                  called the "Alternative Substitute Premises Tenant
                  Improvements Costs") equal to Landlord's out-of-pocket
                  contract or purchase price or prices to be paid by Landlord to
                  architects, engineers, material suppliers, subcontractors,
                  independent contractors and/or other sources for the material,
                  labor and services applied to the Tenant Alternative
                  Substitute Premises Work, plus a four percent (4%)
                  construction management fee payable to Landlord and applicable
                  sales taxes. Landlord agrees to obtain not less than two (2)
                  bids for the completion of the Tenant Alternative Substitute
                  Premises Work from duly licensed general contractors and shall
                  select, as the general contractor to complete the Tenant
                  Alternative Substitute Premises Work, the general contractor
                  who submits the lowest bid or such other general contractor
                  who submits a bid within two percent (2%) of the lowest bid.

                           (v) Payment for Tenant Work. Landlord shall provide
                  an allowance for the Alternative Substitute Premises Tenant
                  Improvements Costs in the amount of One Hundred Twenty-One
                  Thousand One Hundred Eighty and No/100 Dollars ($121,180.00)
                  ("Alternative Substitute Premises Improvements Allowance").
                  Tenant shall pay for all Alternative Substitute Premises
                  Tenant Improvements Costs exceeding the Alternative Substitute
                  Premises Improvements Allowance within ten (10) business days
                  after the first date that the Alternative Substitute Premises
                  are available for Tenant's occupancy and Landlord has
                  furnished Tenant with an itemization, in reasonable detail, of
                  the Alternative Substitute Premises Tenant Improvements Costs;
                  provided, however, that Landlord may require that, before the
                  commencement of the Tenant Alternative Substitute Premises
                  Work that Tenant pay to Landlord twenty-five percent (25%) of
                  the amount that the estimated Alternative Substitute Premises
                  Tenant Improvements Costs as reasonably determined by Landlord
                  exceed the Alternative Substitute Premises Tenant Improvements
                  Allowance.

                           (vi) Access; Acceptance of Work. Landlord shall
                  afford Tenant and its employees and agents access to the
                  Alternative Substitute Premises at reasonable times prior to
                  the commencement of the Term and at Tenant's sole risk and
                  expense, for the purposes of inspecting and verifying
                  Landlord's performance of the Alternative Substitute Premises
                  Tenant Work. Tenant shall advise Landlord promptly of any
                  objection to the performance of such work.



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                           (vii) Delivery of Possession. If Landlord shall, for
                  any reason (including, without limitation, failure to complete
                  the work, if any, required to be done by Landlord under this
                  Lease), fail to make available to Tenant possession of the
                  Alternative Substitute Premises, Landlord shall not be subject
                  to any liability for such failure. Under such circumstances
                  Tenant's obligations to pay the Basic Rent and Additional Rent
                  for the Alternative Substitute Premises shall not commence
                  until Landlord makes possession available; and such failure to
                  make available to Tenant possession of the Alternative
                  Substitute Premises shall not in any other way affect the
                  validity or continuance of this Lease, or the Term, or the
                  obligations of Tenant hereunder. Such deferral of Rent shall
                  be Tenant's sole and exclusive right and remedy with respect
                  to any such failure. There shall be no deferral of Rent,
                  however, if any such failure is caused in whole or part by any
                  act or omission of Tenant, its agents, servants, employees or
                  contractors, which has the effect of hindering or delaying
                  Landlord's delivery of possession or the timely completion of
                  any work to be done by Landlord (hereinafter a "Tenant
                  Alternative Substitute Premises Delay") including, without
                  limitation, (a) any delay which is caused by changes in the
                  work to be performed by Landlord in readying the Alternative
                  Substitute Premises for Tenant's occupancy, which changes are
                  requested by Tenant, or (b) to furnish to Landlord any
                  required plan, information, approval or consent within the
                  period of time required therefor by the terms of this Lease or
                  caused by any good faith reluctance on the part of Landlord to
                  approve any plan or other information required to be submitted
                  by Tenant and approved by Landlord, or (c) any delay which is
                  caused by the performance of any work or activity in the
                  Alternative Substitute Premises by Tenant or any of its
                  employees, agents or contractors. Tenant also shall pay to
                  Landlord, within ten days after receipt of demand made from
                  time to time, a sum equal to any additional cost to Landlord
                  in completing the Tenant Alternative Substitute Premises Work
                  resulting from any Tenant Alternative Substitute Premises
                  Delay.

                  (c) Tenant agrees that on or before the ten (10) business days
         to occur after the date Landlord notifies the Tenant that the
         Alternative Substitute Premises are available for Tenant's occupancy,
         that Tenant shall completely vacate the Initial Premises in compliance
         with the requirements set forth in Section 20. As of the date the
         Alternative Substitute Premises are available for Tenant's occupancy
         (the "Alternative Substitute Premises Commencement Date"), the
         Alternative Substitute Premises shall constitute the Premises for all
         purposes under this Lease and subject to the terms and conditions set
         forth herein subject to the following exceptions:

                           (i) Term. The Term of this Lease shall be extended
                  for a period of seventy-eight (78) months, commencing on the
                  Alternative Substitute Premises Commencement Date, and
                  expiring at 5:00 p.m., on the last day of the seventy-eighth
                  (78th) month thereafter. If the Alternative Substitute
                  Premises Commencement Date does not occur on the first day of
                  a calendar month, then the Term shall be extended by the
                  number of days between the Alternative Substitute Premises
                  Commencement Date and the first date of the next month.

                           (ii) Rent.

                                    [A] BASIC RENT. The Basic Rent for the
                           Alternative Substitute Premises shall be the
                           following amounts for the following periods of time
                           commencing on the Alternative Substitute Premises
                           Commencement Date:



                                    Time Period        Annual Basic Rent    Monthly Basic Rent
                                    -----------        -----------------    ------------------

                                                                      
                                    Months 1- 6:          $      00.00         $    00.00

                                    Months 7-30:          $ 101,488.25         $ 8,457.35

                                    Months 31-42:         $ 104,517.72         $ 8,709.81

                                    Months 43-78:         $ 107,547.25         $ 8,962.27


                                    [B] ADDITIONAL RENT. Tenant's Proportionate
                           Share for determining Tenant's obligation to pay
                           Additional Rent pursuant to the provisions of Section
                           3(c) shall, as of the Alternative Substitute
                           Commencement Date, be increased to 4.655%, which is
                           the percentage obtained by dividing the rentable area
                           of the Alternative Substitute Premises, which is
                           stipulated to be 6,059 rentable square feet by the
                           total number of square feet of area in the Complex,
                           which is stipulated to be 130,150 rentable square
                           feet (being 95% of the rentable area of the office
                           space in the Complex).

                  (d) Refund of Basic Rent. Within thirty (30) days after the
         Alternative Substitute Premises Commencement Date, Landlord shall
         reimburse Tenant for the amount of any Basic Rent paid by Tenant for
         the Initial Premises for that time period occurring after the
         Alternative Substitute Premises Commencement Date.

         32. TENANT'S OPTION TO TERMINATE LEASE. Provided that neither the
Substitute Premises (pursuant to Section 30) nor the Alternative Substitute
Premises (pursuant to Section 31), are substituted for the Initial Premises and



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provided that Tenant has not exercised the Right of First Offer (defined in
Section 34) subject to the terms of this Section 32, Tenant shall have the
one-time option ("Termination Option") to terminate this Lease as of 11:59 p.m.
(Denver time) on the last day of either the ninth (9th), tenth (10th), eleventh
(11th) or twelfth (12th) complete calendar month after the occurrence of the
Commencement Date (such date is herein referred to as the "Optional Expiration
Date"), provided that Tenant first shall have delivered to Landlord not less
than sixty (60) days' prior written notice ("Termination Notice") of Tenant's
election to exercise its Termination Option, and provided that Tenant pays
Landlord the Termination Payment (defined below) at the time that Tenant
delivers the Termination Notice, time being of the essence hereunder. For
purposes of this Section 32, the "Termination Payment" shall be in an amount
equal to the sum of (a) $4,344.92 (one month of Basic Rent), plus (b) the
product of (i) .7825 (if terminated as of the end of the ninth month), .7571 (if
terminated as of the end of the tenth month), .7315 (if the Lease is terminated
as of the end of the eleventh month), .7056 (if the Lease is terminated as of
the end of the twelfth month), multiplied by (ii) an amount equal to the sum of
[A] the costs and expenses incurred by Landlord to complete the Initial Premises
for Tenant's occupancy, including, but not limited to, the costs and expenses of
completing all Tenant Work not paid for by Tenant; [B] all commissions and/or
brokerage fees incurred by Landlord in connection with the Lease; [C] legal fees
and expenses incurred by Landlord in connection with the preparation of the
Lease and any exhibits, addenda and amendments thereto; and [D] the fees and
costs incurred by Landlord in the completion of architectural work and
engineering for improvements to the Initial Premises and mechanical systems
serving the Initial Premises. Landlord and Tenant hereby agree that the amount
of additional costs Landlord will incur as a result of such termination by
Tenant is extremely difficult to ascertain and the Termination Payment set forth
above represents a fair and reasonable estimate of such costs. If Tenant shall
not have delivered the Termination Notice and Termination Payment to Landlord on
or before that date which is sixty (60) days prior to the last day of the
twelfth (12th) complete calendar month after the Commencement Date, Tenant shall
no longer have any right to terminate this Lease pursuant to this Section 32. If
Tenant timely delivers the Termination Notice and timely pays the Termination
Payment, this Lease shall expire on the Optional Expiration Date as if such date
were the Termination Date originally specified in this Lease. Notwithstanding
any other provision of this Section 32, any Termination Notice given by Tenant
shall not be effective if Tenant is in default in the performance of any of its
obligations under this Lease at the time the Termination Notice is given or at
any time thereafter through the Optional Expiration Date and in such event this
Lease shall remain in full force and effect for the full Term provided in this
Section 2 hereof.

         33. TENANT'S LOAN FOR IMPROVEMENTS. In the event neither the
Substitution Premises (pursuant to Section 30) nor the Alternative Substitute
Premises (pursuant to Section 31) are substituted for the Initial Premises, and
provided Tenant waives its right to exercise the Termination Option, Landlord
agrees at Tenant's request, to loan to Tenant the sum of Ten Thousand and No/100
Dollars ($10,000.00), subject to the following terms and conditions:

                  (a) Tenant shall use the proceeds from the such loan only for
         the payment of costs and expenses incurred by Tenant to complete
         improvements to the Initial Premises, and shall furnish to Landlord
         prior to the receipt of any proceeds of such loan evidence of Tenant's
         incurrence of such costs and expenses;

                  (b) the loan shall be evidenced by a promissory note (the
         "Note") in form and content reasonably required by Landlord providing
         for the repayment of the principal balance in equal monthly payments
         through the remainder of the initial Term of this Lease with interest
         on the unpaid principal balance at the rate of 12% per annum;

                  (c) Tenant shall exercise its right to obtain the loan by
         delivering written notice to Landlord together with evidence of
         Tenant's expenditures on or before October 1, 2000 or Tenant shall be
         deemed to have waived its right to obtain the loan; and

                  (d) any failure by Tenant to make any payment required under
         the Note shall be deemed an Event of Default under this Lease.

         34. RIGHT OF FIRST OFFER.

         Upon and subject to all the terms and conditions set forth in this
paragraph, Landlord hereby grants to Tenant a right of first offer (the "Right
of First Offer") covering the balance of the remaining office space located upon
the fourth (4th) floor of the Building (the "Offer Space"). The Right of First
Offer shall be on the following terms and conditions:

                  (a) If Landlord shall desire to lease all or any portion of
         the Offer Space, as evidenced by the initiation of formal negotiations
         with or the issuance of a proposal to a third party by or on behalf of
         Landlord covering any portion of the Offer Space, or Landlord's
         acceptance of a proposal from a third party, Landlord shall first offer
         to lease such part of the Offer Space (the "Designated Offer Space") to
         Tenant, by giving written notice to Tenant. Such notice shall specify
         the date on which the Designated Offer Space is expected to be
         available for Tenant's lease (the "Scheduled Designated Offer Space
         Commencement Date"). Within five (5) business days after Landlord gives
         Tenant such notice, Tenant shall, by written notice to Landlord (the
         "Offer Notice"), elect or decline to exercise it Right of First Offer.
         If Tenant fails to deliver the Offer Notice to Landlord within such
         period of five (5) business days, Tenant shall be deemed to have
         declined to exercise its Right of First Offer. If Tenant declines or is
         deemed to have declined to exercise its Right of First Offer, Landlord
         thereafter shall have the right to lease such Designated Offer Space to
         any party upon such terms and conditions and for such period or
         successive period of time as Landlord, in its sole discretion, shall
         determine. Notwithstanding the foregoing, Tenant shall have no right to
         exercise the Right of First Offer (and, at Landlord's option, any
         previous exercise of the Right of First Offer shall be null and void)
         if at the time Tenant first attempts to exercise the Right of First
         Offer, or at any time thereafter until the Designated Offer Space has
         been added to the Premises, Tenant is in default under this Lease.



                                       30
   29

                  (b) In the event Tenant exercises the Right of First Offer,
         Tenant shall deliver to Landlord the Tenant's proposed layout plans and
         specifications for such Designated Offer Space within ten (10) business
         days after delivery of the Offer Notice. Upon the Offer Notice being
         given and within such time as Landlord reasonably determines is
         necessary to complete such Designated Offer Space for occupancy,
         Landlord shall cause such Designated Offer Space to be improved and
         completed in a manner consistent with the Tenant's layout plans and
         specifications for such Designated Offer Space (the "Designated Offer
         Space Improvements"). The "Commencement Date" with respect to the
         Designated Offer Space ("Designated Offer Space Commencement Date")
         shall be deemed to be that date which is the later of the Scheduled
         Designated Offer Space Commencement Date or the first business day
         after the substantial completion of the Designated Offer Space
         Improvements.

                  (c) The Designated Offer Space shall be added to the Premises,
         for all purposes, as of the Designated Offer Space Commencement Date
         for the balance of the Term of this Lease and subject to and upon the
         following economic terms and all of the other terms, covenants and
         conditions of this Lease, except that:

                           (i) the annual Basic Rent which shall be at the
                  prevailing market rates for office space in the Building
                  comparable to the Premises at the time of the Designated Offer
                  Space Commencement Date. In no event shall the Base Rent
                  payable for the Designated Offer Space be less than the Basic
                  Rent payable under this Lease immediately prior to the
                  Designated Offer Space Commencement Date.

                           (ii) Tenant's Proportionate Share shall be increased
                  to a new percentage, calculated in accordance with the
                  provisions of the Lease by increasing the rentable area of the
                  Premises by the number of square feet comprising the rentable
                  area of such Designated Offer Space. Tenant's obligation to
                  pay Basic Rent and the Additional Rent calculated pursuant to
                  the Lease for the Designated Offer Space shall commence on the
                  Designated Offer Space Commencement Date. Upon addition of the
                  Designated Offer Space to the Premises, this Lease shall be
                  deemed modified in the manner set forth above without the
                  necessity of any further agreement or document; provided,
                  however, Landlord and Tenant agree to execute, acknowledge and
                  deliver an instrument evidencing such modification of this
                  Lease to be prepared by Landlord.

         35. RENEWAL OPTION.

         Tenant shall have the option to renew ("Renewal Option") the Term of
this Lease for one (1) additional term of five (5) years ("Renewal Term")
commencing upon the expiration of the scheduled Term of this Lease under Section
2 (and as extended pursuant to the terms of either Section 30 or Section 31
hereof), on the condition that Tenant is not in default under this Lease at the
time Tenant gives notice of exercise of its Renewal Option or at the time of
commencement of the Renewal Term. Such renewal shall be on all of the terms,
covenants and conditions of this Lease, except: (i) Tenant shall not have any
right to further renewal beyond such additional five-year term; and (ii) the
annual Basic Rent for the Premises for the renewal term shall be at the
prevailing market rates for office space in the Building comparable to the
Premises at the time the Renewal Term begins. In no event shall the Basic Rent
payable during the Renewal Term be less than the Basic Rent payable under this
Lease immediately prior to the commencement of the Renewal Term. Tenant's
Renewal Option shall be exercised only by Tenant giving Landlord written notice
of Tenant's election to renew not less than nine (9) months prior to the
expiration of the initial Term of this Lease, time being of the essence with
respect to such notice. As of the date the Renewal Term begins, this Lease shall
be deemed modified in the manner set forth above, without the necessity of any
further agreement or document; provided, however, that either party to this
Lease shall, upon request of the other party, execute, acknowledge, and deliver
an instrument evidencing such renewal and modification of this Lease.

         All of the terms and provisions of the Lease, as herein amended and
supplemented, are hereby ratified and confirmed, and shall remain in full force
and effect.



                                       31
   30

         IN WITNESS WHEREOF, the parties hereto have caused this Addendum to be
duly executed as of the day and year first above written.


                                    LANDLORD:

                                    LAKESIDE HOLDINGS, L.L.C., a
                                    Delaware limited liability company

                                    BY:      Silverbrae Holdings,
                                             Inc., a Colorado
                                             corporation, Agent


Date: 3/29/99                 By: /s/ Garth R. D. Tait
     --------------------         ---------------------------------------------
                                          Garth R. D. Tait, President



                                      TENANT:

                                      MULTI-LINK TELECOMMUNICATIONS, INC., a 
                                      Colorado corporation


Date: 3/29/99                 By: /s/ Nigel V. Alexander
     --------------------         ---------------------------------------------
                              Its: Chief Executive Officer
                                  ---------------------------------------------




                                         GUARANTOR:

                                         MULTI-LINK  COMMUNICATIONS,  INC.,
                                         a Colorado corporation


Date: 3/29/99                 By: /s/ Nigel V. Alexander
     --------------------        ----------------------------------------------
                              Its: Chief Executive Officer
                                   --------------------------------------------


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