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Exhibit 10.7

                                 PROMISSORY NOTE

$200,000.00                                              Date: December 23, 2002

For value received, the undersigned Electronic Tele-Communications, Inc. (the
"Borrower"), at 1915 MacArthur Road, Waukesha, Wisconsin 53188, promises to pay
to the order of esitec, llc, (the "Lender"), at 1915 MacArthur Road Suite 1,
Waukesha, Wisconsin 53188, (or at such other place as the Lender may designate
in writing) the outstanding principal sum of up to $200,000.00 with interest
from date of first draw, on the unpaid principal at the prime rate as reported
in the Wall Street Journal ("Prime").

The Borrower may request to draw sums against this promissory note in increments
of $10,000.00 up to the maximum sum of $200,000.00, subject to Lender's approval
of said draw based on Borrower's stated use of said funds and current financial
position, and Lender's availability of said funds.

Unpaid principal after the Due Date shown below shall accrue interest at a rate
of Prime plus 2% annually until paid.

The unpaid principal and accrued interest shall be payable in monthly
installments of interest only beginning on the first day of the calendar month
following a draw by the Borrower, and continuing until December 31, 2003, (the
loan "Due Date"), at which time the remaining unpaid principal and interest
shall be due in full.

This promissory note is a renewal of the original Promissory note dated January
22, 2002 and shall hereafter renew automatically in consecutive one-year
increments, provided that either party may terminate this promissory note upon a
45 day written notice.

All payments on this Note shall be applied first in payment of accrued interest
and late charges and any remainder in payment of principal.

The Borrower promises to pay a late charge of 2% of each installment that
remains unpaid more than 10 day(s) after it is due. This late charge shall be
paid as liquidated damages in lieu of actual damages, and not as a penalty.

The Borrower has the right to prepay this Note (in whole or in part) prior to
the Due Date with no prepayment penalty.

If any payment obligation under this Note is not paid when due, the Borrower
promises to pay all costs of collection, including reasonable attorney fees,
whether or not a lawsuit is commenced as part of the collection process.
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This Note is secured by the accounts receivable for goods or services sold or
provided by the Borrower to its customers in the normal course of business, not
including installment sales contracts. In addition, upon default by the
Borrower, to the extent necessary to support any accounts receivable which
secure this Note, the Lender shall have the non-exclusive right to use any
equipment and general intangible assets of the Borrower related to the
receivables, including patents, trademarks, software, and other intellectual
property.

The Borrower agrees to maintain all collateral assets in good condition and
repair, and will not allow their value to be impaired in any way. The Borrower
will maintain insurance on all assets in a form satisfactory to the Lender, and
the Borrower will diligently pursue the collection of all accounts receivable.

Unless this note becomes due and payable, the Borrower shall have the right to
remain in possession of and to use and retain exclusive control of the
collateral for its normal business operations.

The Lender is not required to rely on the above security described herein for
the payment of this Note in the case of default, but may proceed directly
against the Borrower.

If any of the following events of default occur, this Note and any other
obligations of the Borrower to the Lender, shall become due immediately, without
demand or notice:

      1)    the failure of the Borrower to pay the principal and any accrued
            interest in full on or before the loan Due Date,

      2)    the failure to pay the monthly interest and late charges for 30 days
            past when they were due,

      3)    the filing of bankruptcy proceedings involving the Borrower as a
            debtor;

      4)    the application for the appointment of a receiver for the Borrower;

      5)    the making of a general assignment for the benefit of the Borrower's
            creditors;

      6)    the insolvency of the Borrower;

      7)    a misrepresentation by the Borrower to the Lender for the purpose of
            obtaining or extending credit.

      8)    Sale of or other change in control of more than 50% of the then
            voting Stock of the Borrower.

In addition, the Borrower shall be in default if there is a sale, transfer,
assignment, or any other disposition of any assets pledged as security for the
payment of this Note other than as provided herein, or if there is a default in
any security agreement which secures this Note.
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If any one or more of the provisions of this Note are determined to be
unenforceable, in whole or in part, for any reason, the remaining provisions
shall remain fully operative.

All payments of principal and interest on this Note shall be paid in the legal
currency of the United States. The Borrower waives presentment for payment,
protest, and notice of protest and nonpayment of this Note.

No renewal or extension of this Note, delay in enforcing any right of the Lender
under this Note, or assignment by Lender of this Note shall affect the liability
or the obligations of the Borrower. All rights of the Lender under this Note are
cumulative and may be exercised concurrently or consecutively at the Lender's
option.

This Note shall be construed in accordance with the laws of the State of
Wisconsin.

Signed this 23rd day of December, 2002, at ETC Offices, Waukesha, Wisconsin.

Borrower:
Electronic Tele-Communications, Inc.


By:  /s/ Jeffrey M. Nigl, Vice President
     -----------------------------------
         Jeff Nigl

Lender:
Esitec, llc.



By:  /s/ Dean W. Danner
     ------------------
         Dean Danner