Document:

<PAGE>   1
                                                                   EXHIBIT 10(i)

                                   ASSIGNMENT

         EFFECTIVE THE 3rd day of March, 2000, for the consideration described
herein below, BroadCom Wireless Communications Corporation, an Oklahoma
corporation ("BCOM"), hereby assigns to BroadBand Wireless International
Corporation, a Nevada corporation ("BBAN"), all of its rights, title, and
interest in and to the following shares of stock in GKD, Inc., an Oklahoma
corporation ("GKD"), representing all of the issued and outstanding shares of
GKD owned or held, directly or beneficially, by BCOM, which it previously
acquired from Ronald Baker and Gary Duke:

<TABLE>
<CAPTION>
                     Number of Shares         Assignor           Assignee
                     ----------------         --------           --------
<S>                                           <C>                <C>
         Total          600                     BCOM             BBAN
</TABLE>

The consideration received by BCOM for the transfer of the above described
shares of stock in GKD is five million (5,000,000) shares of the common stock of
BroadBand Wireless International Corporation.

BCOM and BBAN will execute and deliver such other and further documents
including, but not limited to, stock certificates for GKD and for BBAN as
described herein, as may be deemed reasonably necessary to effectuate the
transaction set out in this Assignment.

"BCOM" - BroadCom Wireless Communications Corporation, an Oklahoma corporation

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

"BBAN" - BroadBand Wireless International Corporation, a Nevada corporation

By:
   -----------------------------
Name:
Title:<PAGE>   1

                                                                  EXHIBIT 10(ii)

                               LETTER OF AGREEMENT

This Letter of Agreement, hereinafter referred to as "Agreement" is made and
entered into effective this 1st day of March, 2000 by and between and signatory
parties of this Agreement, "BroadBAND Wireless International Corporation,
International Division" hereinafter referred to as (BBAN), a Corporation
organized under the laws of the State of Texas with offices in Oklahoma City,
Oklahoma; and i TELL, Inc. hereinafter referred to as "i TELL", a Corporation
organized under the laws of Maryland with offices in Gaithersburg, Maryland.

For and in consideration of the mutual covenants herein contained, the
Participants (hereinafter defined) agree as follows:

WHEREAS: It is the purpose of this Agreement, to clearly outline the intent of
i TELL to become a Wholly Owned Subsidiary of the International Division of
BBAN, for specific purpose of building a Global Virtual Private Network.
Additionally, it is the purpose of this Agreement to clearly outline the intent
of the International Division of BBAN to provide i TELL all the latitude and
support necessary to develop and operate this Global Virtual Private Network.

WHEREAS: It is the intent of i TELL, to roll into BBAN as a wholly owned
subsidiary, roll up to $500,000,000 in Book Value, and then decide if it is
advantageous to roll out of the International Division of BBAN into its own
public Vehicle. This option is made available to i TELL only when i TELL reaches
the Book Value of Five Hundred Million Dollars ($500,000,000 USD). It is the
intent of the International Division of BBAN to do all that is necessary to help
i TELL reach this Book Value of $500,000,000 as soon as possible;

WHEREAS: It is the objective of the International Division of BBAN to acquire
operational entities necessary to build the infrastructure of the Global Virtual
Private Network;

WHEREAS: i TELL has the ability to negotiate and obtain varied and fully
operational entities as is necessary to build and manage the Global Virtual
Private Network;

NOW THEREFORE: It is the responsibility of each Participant and/or their assigns
to maintain an active role on the Board of Directors of the "International
Division of BBAN". Each Participant will be required to attend quarterly
corporate meetings and an annual stockholders meeting as well as any and all
other meetings as required in the normal course of business.

NOW THEREFORE: It is the primary responsibility of "BBAN", to acquire and
provide all project funding, financing and refinancing through standard
financial transactions within banks, financial institutions, foundations and
grants, contracted research and development pool et al, as well provide all
qualified funding for additional acquisitions and/or option to purchase as well
as to do whatever is necessary to take this i TELL to the public market
immediately as may be agreed and approved by the Board of Directors.

NOW THEREFORE: It is the primary responsibility of "i TELL", to establish and
develop all necessary relationships, contracts, network strategies of all
aspects of the telecommunications industry as is necessary to develop, implement
and manage the ongoing operation of an "Global Virtual Private Network" as
agreed by the Board of Directors of this BBAN.

<PAGE>   2

IN CONSIDERATION: i TELL will receive a total of $200,000 cash and One Million
Shares of 144 Restricted Stock of BBAN. To date $87,500 has been received by i
TELL;

IN CONSIDERATION: The International Division of BBAN does have a Wholly Owned
Subsidiary known as i TELL, in addition to the acquisition of i TELL including
but not limited to LCN of Sterling Virginia, and Panamtel of Caracas, Venezuela,
Ladimex, Mexico and others.

AS AGREED: i TELL will build to a Book Value of $500,000,000 and then at the
option of i TELL, have the right to have BBAN spin off i TELL into its own
Public Vehicle with BBAN retaining 25% of the Public Stock of i TELL at the time
of its IPO.

AS AGREED: BBAN will provide i TELL the mechanisms necessary to become their own
Public Vehicle, with BBAN retaining 25% of all shares of i TELL the Public
Corporation.

This Agreement anticipates formalized contracts to be executed with same
likeness and intent at a later date.

ACCEPTED AND AGREED THIS 1ST DAY OF MARCH 2000

/s/ Sergio Ado

Mr. Sergio Ado, President
i TELL, Inc.

/s/ Tommy K. Hill

Mr. Tommy K. Hill, President
International Division, BBAN<PAGE>   1

                                                                 EXHIBIT 10(iii)

i TELL, Inc.
7895 B Cessna Avenue
Gaithersburg, MD 20879
Phone: 301-590-1091 Fax:301-869-3019
E-Mail: INFO@i TELL.inc.com

                   SALE/PURCHASE/MANAGEMENT AGREEMENT PANAMTEL

This Agreement is made this 29th day of February, 2000 by and between i TELL,
Inc. a Delaware Corporation headquartered at 7895 B Cessna Avenue, Gaithersburg,
Maryland 20879, represented by Mr. Sergio Ado (hereinafter known as Buyer) and
Asociados Espada C.A., trading as Panamtel, located at Av. Ppal Beethoven, Torre
Financiera, Piso 2, Ofic. 2-H, Urb, Bello Monte, Caracas, D.F. B Apod Postal
1050 Caracas Venezuela represented by Mr. Jorge Pocaterra Mejias (hereinafter
known as Seller)

Whereas the seller desires to sell and the Buyer desires to buy the business of
a certain telecommunications and marketing company known as Asociados, Espada
C.A., trading as Panamtel (hereinafter known as the "Company") inclusive all
assets thereof as contained in Schedule "A" attached hereto.

Whereas the Buyer requires that the Company prove it's ability to become
profitable. This is to be accomplished through a one (1) year trail in which the
Company will be managed completely by the Buyer. At anytime, at the sole
discretion of the buyer, the buyer may choose to fully execute this contract and
take immediate control of the Company.

The parties hereto agree and covenant that the purchase of the Company will be
effected one (1) year and one (1) day, from the date of this agreement under the
terms and conditions listed below. For the period of one (1) year and (1) day,
i TELL, Inc., will be in full management control of the Company with i TELL
providing all required financial, management, marketing and operational support
to insure the success of this business venture and the ultimate sale and
purchase of the Company. During this one (1) year period i TELL will
continuously evaluate the performance of the Company while utilizing all
standard business practices as deemed necessary to insure the success of the
Company. At the successful completion of this one year trial, this
Sales/Purchaser/Management Agreement will be put into full force and effect with
i TELL paying the agreed upon price as outlined herein. If this one year trial
is deemed by the buyer to be unsuccessful the Company will be returned to Mr.
Jorge Pocaterra Mejias, as is, with no further liabilities or responsibilities
to any of the parties involved. During this one (1) trial period, it will be the
responsibility of the Company, with the full financial and operational support
of i TELL, to reverse the current business looses of the Company, and to return
the Company to the status of profitability. The terms and conditions of this
trial period, which will lead to the ultimate sale and purchase of the Company
are as follows:

1.       i TELL, Inc., upon the completion of this Sale/Purchase/Management
         contract will immediately assume full management control of the
         Company. This management agreement will be in full force and effect for
         the period of one year, in which the performance of the Company will be
         continuously evaluated, under the following terms and conditions:

<PAGE>   2

         2.       All personnel of the Company are to remain on staff and in the
                  positions in which they now occupy under the general terms and
                  conditions of their existing and/or assumed employment
                  contracts, as required by the Central Government.

         3.       A Chief of Operations Officer will immediately be deployed by
                  i TELL and integrated into management supervision of all staff
                  functions within the home office operations of the Company.
                  All operational controls will be assumed by i TELL.

         4.       Marketing and Sales will come under the direct supervision of
                  i TELL, with all marketing and sales goals and objectives
                  being established by i TELL. Monthly Marketing and Sales
                  reviews will be conducted with performance reviews for all
                  Marketing and Sales personnel. All marketing and sales are to
                  be standardized and accomplished by the existing staff, in a
                  concentrated effort to expand the lines of business and create
                  profitable cash flows.

         5.       The CFO of i TELL will manage all Accounts Receivable,
                  Accounts Payable and Payroll. All financial matters concerning
                  funding, cash management, stock, hedging, accounting and
                  reporting will be assumed by i TELL. Exiting staff will be
                  utilized to facilitate all accounting and reporting functions
                  of the Company. Immediately upon closing of this
                  Sales/Purchase/Management Agreement, the Buyer will establish
                  Monthly. Quarterly and Annual operating budgets and standard
                  accounting procedures. All budgetary considerations,
                  guidelines and funding requirements of the Company, deemed
                  appropriate by i TELL, will be authorized, supported and
                  allocated by i TELL.

         6.       The current contracts for service and equipment will remain in
                  full force and effect. Normal and customary business practices
                  will be maintained to the highest possible standards. All
                  leases, rentals, and mortgages of the Company will remain in
                  full force and effect until such time as the corporation deems
                  it necessary to make appropriate changes as agreed.

2.       It will be the responsibility of the Company to reverse all negative
         business trends and correct the financial shortfalls of the business of
         the Company under the following terms and conditions.

         7.       Mr. Jorge Pocaterra will remain President of the Company and
                  will be responsible to insure the successful transition of the
                  Telecommunications business in Venezuela from the current
                  position of Central Government control to the Private Markets.
                  Among the responsibilities of the President will be to insure
                  the maintenance of all licenses and permits necessary to do
                  the ordinary business of the Company, while doing all that is
                  additionally required to expand the licensing of the company
                  as directed by i TELL in making every effort to reverse the
                  Company's existing problems.

         8.       All accounting staff will remain and report to the CFO of
                  i TELL for all ordinary business and financing of the Company.
                  All cash flows, expenses, and required funding will be the
                  responsibility of i TELL.

         9.       All Marketing and Sales staff will remain in their positions
                  reporting directly to the COO. It will be the responsibility
                  of Marketing and Sales to build the volume of business of the
                  Company as outline by i TELL. Corporate objectives and sales
                  quotes will be clearly outlined.

         10.      All Technical and Engineering staff will remain in their
                  current positions and it will be the responsibility of i TELL
                  to deploy all additional equipment necessary to expand the
                  network capacities of the Company to meet the corporate
                  objectives as implemented by i TELL.

<PAGE>   3

         11.      General and Administrative expenses will be reviewed and
                  adjusted according to the budget guidelines imposed by the CFO
                  and approved by the CEO.

3.       The Company must prove its ability to make its business profitable and
         once there is proof of performance and documentary evidence of the
         growth and profitability of the business of the Company, i TELL will at
         the end of the term of one (1) year execute the following settlement
         for the purchase of Company:

         12.      At the acceptance and execution of this contract, i TELL,
                  Inc., will cause to be placed in escrow. Two Hundred Thousand
                  (200,000) shares of the publicly traded stock of BroadBAND
                  Wireless International (BBAN) currently priced by the United
                  States Market Makers at a total Book value in excess of
                  $600,000,000 with an individual share value averaging above
                  $6.00 per share.

         13.      At the successful completion of this trial period, within the
                  one year time period or sooner at the sole option of the
                  buyer, as total consideration for the purchase of the Company.
                  i TELL will transfer to the Company, the 200,000 shares of the
                  publicly traded stock of BBAN.

         14.      Immediately upon receipt of the BBAN Stock, the Company
                  promises and agrees to convey to i TELL all goods, clear, and
                  marketable titles to all the property to be sold hereunder,
                  the same to be sold hereunder the same to be free and clear of
                  all liens and encumbrances. Full possession of said property
                  will be delivered in the same condition that it is now,
                  reasonable wear and tear expected. Until conveyance of all
                  real properties to Buyer, the Seller agrees to maintain the
                  existing insurance policies, in accordance with industry
                  standards for all said property.

         15.      Immediately upon receipt of the BBAN Stock, the Company
                  promises to convey to i TELL all existing bank accounts, all
                  cash accounts, accounts receivable, accounts payable, all
                  inventory and all vendor contracts at the time of closing.

         16.      Immediately upon receipt of the BBAN Stock, the Company
                  promises to convey all licenses and permits to i TELL.

         17.      This Agreement supercedes any/all prior agreements, written or
                  oral.

         18.      All of the terms, representations and warranties shall survive
                  the closing. This Agreement shall bind and inure to the
                  benefit of the Seller and the Buyer and their respective
                  heirs, executors, administrators, successors and assigns. If
                  this agreement shall contain any term or provision which shall
                  be invalid or against public policy or if the application of
                  same is invalid or against public policy, then the remainder
                  of this Agreement shall not be affected thereby and shall
                  remain in full force and effect.

IN WITNESS WHEREOF, the parties hereto have caused this instrument to be
executed on the day and year fist above written and that the buyer and the
seller mutually agreed that this agreement is govern under the laws of the State
of Delaware, U.S.A. This constitutes the whole and entire agreement.

<TABLE>
<CAPTION>
SELLER:                             BUYER:                             WITNESS:
<S>                                 <C>                                <C>
/s/ Jorge Pocaterra Mejias          /s/ Sergio Ado

Mr. Jorge Pocaterra Mejias          Mr. Sergio Ado

Asociados Espada C.A.               i TELL, Inc. U.S.A.
</TABLE>

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