Document:

SIXTH AMENDMENT TO BUSINESS LOAN AGREEMENT

                             Date: February 1, 2005

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BORROWER:                                          LENDER:

CONTEMPORARY CONSTRUCTORS, INC.                    THE FROST NATIONAL BANK
19240 Redland Road                                 P.O. Box 1600
San Antonio, Texas 78259                           San Antonio, Texas 78296

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     This Sixth Amendment to Business Loan Agreement (Asset Based) ("Amendment")
is  made  as  of  the above date by and between Borrower and Lender and modifies
certain  terms  of  a  Business  Loan  Agreement dated as of September 27, 2001,
between  Borrower  and  Lender,  relating  to  a Line of Credit in the amount of
$6,500,000.00  ("Loan  Agreement"). The Loan Agreement has been amended by First
Amendment  to  Business Loan Agreement dated May 27, 2002, a Second Amendment to
Business  Loan  Agreement dated May 26, 2003, a Third Amendment to Business Loan
Agreement dated November 24, 2003, a Fourth Amendment to Business Loan Agreement
dated  May  24,  2004,  and  a  Fifth Amendment to Business Loan Agreement dated
September  21,  2004.

     1.     The  definition  of "BORROWING BASE" set forth on page 7 of the Loan
Agreement  is  deleted  in  its  entirety  and the following is inserted in lieu
thereof:

     BORROWING  BASE.  The  words "Borrowing Base" mean, as determined by Lender
     from  time  to time, the lesser of (a) $4,550,000.00; or (b) the sum of (i)
     80.000%  of  the aggregate amount of Eligible Accounts plus (ii) 50.000% of
     net costs in excess of billings up to a maximum of $1,750,000.00. This will
     apply to costs that will be invoiced within forty five (45) days.

     2.     Paragraph  number  3  to  the  Fourth  Amendment  to  Business  Loan
Agreement will not apply.

     3.     The  first  sentence  of  the  paragraph  entitled  "MANDATORY  LOAN
REPAYMENTS"  on  page 1 of the Loan Agreement is deleted in its entirety and the
following  is  inserted  in  lieu  thereof:

     If  at  any time the aggregate principal amount of the outstanding Advances
shall  exceed  the  applicable  Borrowing  Base,  Borrower, upon written or oral
notice  from  Lender,  shall  pay  to  Lender  an amount equal to the difference
between  the  outstanding  principal  balance  of the Advances and the Borrowing
Base.  Such payment shall be made within seven (7) Business Days of the date the
aggregate  principal  amount  of  the  outstanding  Advances  first  exceeds the
applicable  Borrowing  Base,  regardless  of  the  date  of  Lender's  notice to
Borrower.

     4.     The financial  reporting  requirements entitled "ACCOUNTS RECEIVABLE
AGING  REPORT",  "BORROWING  BASE  CERTIFICATES,"  "FINANCIAL  STATEMENTS",  AND
"COMPLETION  REPORTS"  on  page  6  of  the  Loan Agreement are deleted in their
entirety  and  the  following  is  inserted  in  lieu  thereof:

<PAGE>
     REPORTING  REQUIREMENTS.  Until (i) the Notes and all other obligations and
liabilities  of  Borrower under this Loan Agreement and the other Loan Documents
are  fully  paid and satisfied, and (ii) the Lender has no further commitment to
lend hereunder, Borrower will, unless Lender shall otherwise consent in writing,
furnish  to  Lender:

          (a)  INTERIM  FINANCIAL  STATEMENTS.  As soon as available, and in any
     event  within  thirty  (30) days after the end of each month of each fiscal
     year  of Borrower, a consolidated income statement and balance sheet of CCI
     Telecom,  Inc.,  and  its  domestic subsidiaries together with the relating
     consolidating  income  statements  and  balance  sheets,  including  the
     consolidating income statement and balance sheet of Borrower, as of the end
     of  such  fiscal  month, all in form and substance and in reasonable detail
     satisfactory  to  Lender  and  duly  certified  (subject to year-end review
     adjustments)  by  the  President  and/or  Chief  Financial  Officer  of CCI
     Telecom,  Inc. (i) as being true and correct in all material aspects to the
     best of his or her knowledge and (ii) as having been prepared in accordance
     with  generally  accepted  accounting  principles,  consistently  applied.

          (b)  ANNUAL  FINANCIAL  STATEMENTS.  As  soon  as available and in any
     event  by  within  sixty (60) days after the end of each fiscal year of CCI
     Telecom,  Inc.,  including  the  fiscal  year  ending  March  31,  2005,  a
     consolidated  balance  sheet  and  income  statement  of CCI Telecom, Inc.,
     together  with  the  related  consolidating  balance  sheets  and  income
     statements  of  its  subsidiaries,  including  a  balance  sheet and income
     statement  of  Borrower, as of the end of such fiscal year, all in form and
     substance  and  in  reasonable  detail  satisfactory  to  Lender  and  duly
     certified  by  the President and/or Chief Financial Officer of CCI Telecom,
     Inc.  (i)  as being true and correct in all material aspects to the best of
     his  or  her  knowledge and (ii) as having been prepared in accordance with
     generally  accepted  accounting  principles,  consistently  applied.

          (c)  Accounts  Aging. An accounts receivable aging report for Borrower
     and  Berkshire  Wireless,  Inc.,  and CCI Integrated Solutions Inc., within
     three  (3)  days  after  the  end of each week and with each request for an
     Advance,  in  form  and  detail  satisfactory  to  Lender.

          (d)  PERCENTAGE  OF  COMPLETION. A percentage of completion report for
     Borrower,  Berkshire  Wireless,  Inc.,  and  CCI Integrated Solutions Inc.,
     within thirty (30) days after the end of each month of each fiscal year, in
     form  and  detail  satisfactory  to  Lender.

          (e)  BORROWING  BASE  CERTIFICATES.  Borrower  shall furnish to Lender
     weekly  borrowing base certificates in a format acceptable to Lender within
     three  (3)  days  after  the  end of each week and with each request for an
     Advance.

     5.   The Loan Agreement is amended to add the following reporting covenant.

     TAX RETURNS. Borrower shall deliver to Lender, and shall cause CCI Telecom,
     Inc.  and  Michael J. Novak to deliver to Lender, copies of Borrower's, CCI
     Telecom  Inc.'s  and  Michael  J. Novak's federal income tax returns within
     thirty  (30)  days  after  filing.

     6.   All  liens  and  security  interests  securing  the Line of Credit are
expressly  renewed  and  carried forward to secure the Line of Credit as amended
pursuant  to  this  Amendment.

     7.   Unless  otherwise  defined herein, terms defined in the Loan Agreement
and  used  herein  shall  have  the  respective  meanings  set forth in the Loan
Agreement.

     8.   All  of  the  terms,  provisions, covenants, warranties and agreements
contained in the Loan

                                        2
<PAGE>
Agreement  shall  remain  in full force and effect as therein written, except as
amended hereby. The Loan Agreement, as amended, is hereby ratified and confirmed
in  all  respects.

     The  parties  hereto  have  caused  this  Sixth  Amendment to Business Loan
Agreement  (Asset  Based)  to  be  duly executed as of the date set forth above.

                                NOTICE TO OBLIGOR
                            (REQUIRED BY STATE LAW)

     For  the  purpose of this Notice, the term "WRITTEN AGREMENT" shall include
the  document  set  forth  above,  together  with  each and every other document
relating to and/or securing the same loan transaction, regardless of the date of
execution.

     THIS  WRITTEN  AGREEMENT REPRESENTS THE FINAL AGREEMENT BETWEEN THE PARTIES
     AND  MAY  NOT  BE  CONTRADICTED  BY  EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR
     SUBSEQUENT  ORAL  AGREEMENTS  OF  THE  PARTIES.

     THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

BORROWER:                                LENDER:

CONTEMPORARY CONSTRUCTORS, INC.          THE FROST NATIONAL BANK

By:__________________________________    By:__________________________________
   MICHAEL J. NOVAK, President

                                        3
<PAGE>[GRAPHIC OMITTED]
                    ARBITRATION AND NOTICE OF FINAL AGREEMENT
                    -----------------------------------------

To:  CONTEMPORARY CONSTRUCTORS, INC.
     19240 Redland Road
     San Antonio, Texas 78259
     (collectively, whether one or more, "Borrower")
                                          --------

     As  of  the  effective date of this Notice, Borrower and THE FROST NATIONAL
BANK,  a  national banking association ("Lender") have consummated a transaction
                                         ------
pursuant  to  which  Lender  has  agreed to make a loan or loans to Borrower, to
renew,  increase  and  extend  an  existing  loan or loans to Borrower and/or to
otherwise  extend  credit or make financial accommodations to or for the benefit
of  Borrower,  under a line of credit in an aggregate amount up to $4,550,000.00
and  under a term loan in an aggregate amount up to $1,709,201.51 (collectively,
whether  one  or  more,  the  "Loan").
                               ----

                                   ARBITRATION
                                   -----------

Upon  written  request  of  either  Lender or Borrower, any controversy or claim
between  or  among the parties hereto including but not limited to those arising
out  of  or  relating  to  the  Loan,  any  of the loan documents or any related
agreements  or  instruments  executed  in  connection  with  the Loan (the "Loan
                                                                            ----
Documents"), including any claim based on or arising from an alleged tort, shall
---------
be  determined by binding arbitration in accordance with the Federal Arbitration
Act (or if not applicable, the applicable state law), the Commercial Arbitration
Rules of the American Arbitration Association, and the "Special Rules" set forth
below  unless  both  Lender  and  Borrower, in their respective sole discretion,
agree  in  writing  to  mediate  the  dispute  prior  to  submitting  to binding
arbitration. In the event of any inconsistency, the Special Rules shall control.
Judgment  upon  any  arbitration  award  may  be  entered  in  any  court having
jurisdiction.  Any  party  to  this  Agreement  may bring an action, including a
summary  or  expedited  proceeding,  to compel arbitration of any controversy or
claim to which this agreement applies in any court having jurisdiction over such
action.  The  party  that  requests  arbitration  has the burden to initiate the
arbitration  proceedings  pursuant  to  and  by  complying  with  the Commercial
Arbitration  Rules  of  the  American  Arbitration Association and shall pay all
associated  administrative  and  filing  fees.

The  arbitration  shall  be  conducted in the City of San Antonio, Bexar County,
Texas  and administered by the American Arbitration Association. All arbitration
hearings  will  be  commenced  within sixty (60) days of the written request for
arbitration,  and  if  the arbitration hearing is not commenced within the sixty
(60)  days,  the party that requested arbitration shall have waived its election
to  arbitrate.  Nothing  in  this  Agreement  shall  be  deemed to (i) limit the
applicability  of  any otherwise applicable statutes of limitation or repose and
any  waivers  contained  in this Agreement; or (ii) be a waiver by Lender of the
protection  afforded  to it by 12 U.S.C. Sec. 91 or any substantially equivalent
state  law;  or (iii) limit the right of Lender hereto (A) to exercise self help
remedies  such  as  (but not limited to) setoff, or (B) to foreclose against any
real  or  personal property collateral in accordance with applicable law, or (C)
to  obtain  from  a  court  provisional  or  ancillary remedies such as (but not
limited  to)  injunctive  relief  or the appointment of a receiver in accordance
with applicable law. Lender may exercise such self help remedies, foreclose upon
such  property,  or  obtain  such  provisional  or  ancillary  remedies  before,

<PAGE>
during  or  after the pendency of any arbitration proceeding brought pursuant to
this Agreement or any other Loan Document. At Lender's option, foreclosure under
a  deed  of  trust  or mortgage may be accomplished by any of the following: the
exercise  of a power of sale under the deed of trust or mortgage, or by judicial
sale  under  the  deed of trust or mortgage, or by judicial foreclosure. Neither
this  exercise  of  self  help remedies nor the institution or maintenance of an
action  for  foreclosure or provisional or ancillary remedies shall constitute a
waiver  of the right of any party, including the claimant in any such action, to
arbitrate  the  merits  of  the  controversy or claim occasioning resort to such
remedies.

                       FACSIMILE DOCUMENTS AND SIGNATURES
                       ----------------------------------

For  purposes  of  negotiating  and  finalizing  the  Written Loan Agreement (as
hereinafter  defined),  if  this document or any document executed in connection
with  the  Loan is transmitted by facsimile machine ("fax"), it shall be treated
                                                      ---
for  all  purposes  as  an original document. Additionally, the signature of any
party  on  this  document  transmitted  by  way  of a facsimile machine shall be
considered  for  all  purposes as an original signature. Any such faxed document
shall  be  considered  to  have  the  same  binding  legal effect as an original
document.  At  the request of any party, any faxed document shall be re-executed
by  each  signatory  party  in  an  original  form.

                        WAIVER OF RIGHT TO TRIAL BY JURY
                        --------------------------------

THE  PARTIES  TO  THIS  AGREEMENT  HEREBY  WAIVE  TRIAL  BY  JURY IN ANY ACTION,
PROCEEDING  OR  COUNTERCLAIM BROUGHT BY EITHER OF THE PARTIES HERETO AGAINST THE
OTHER  TO  ENFORCE  THIS  AGREEMENT,  TO  COLLECT DAMAGES FOR THE BREACH OF THIS
AGREEMENT,  OR  WHICH  IN  ANY  OTHER  WAY ARISE OUT OF, ARE CONNECTED TO OR ARE
RELATED  TO  THIS  AGREEMENT  OR  THE SUBJECT MATTER OF THIS AGREEMENT. ANY SUCH
ACTION  SHALL  BE  TRIED  BY  THE  JUDGE  WITHOUT  A  JURY.

                              NOTICE OF FINAL AGREEMENT
                              -------------------------

In  connection with the Loan, Borrower and Lender and the undersigned guarantors
and other obligors, if any (collectively, whether one or more, "Other Obligors")
                                                                --------------
have  executed  and  delivered  and  may  hereafter  execute and deliver certain
agreements,  instruments  and documents (collectively hereinafter referred to as
the  "Written  Loan  Agreement").
      ------------------------

It  is  the intention of Borrower, Lender and Other Obligors that this Notice be
incorporated  by  reference into each of the written agreements, instruments and
documents  comprising  the  Written  Loan  Agreement. Borrower, Lender and Other
Obligors  each  warrants  and  represents  that  the  entire  agreement made and
existing  by  or  among  Borrower, Lender and Other Obligors with respect to the
Loan is and shall be contained within the Written Loan Agreement, as amended and
supplemented  hereby, and that no agreements or promises exist or shall exist by
or  among,  Borrower,  Lender  and  Other Obligors that are not reflected in the
Written  Loan  Agreement.

                                          2
<PAGE>
THE  WRITTEN  LOAN  AGREEMENT REPRESENTS THE FINAL AGREEMENT BETWEEN THE PARTIES
AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT
ORAL  AGREEMENTS  OF  THE  PARTIES.

THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

Executed: Effective as of February 1, 2005.

                                   THE FROST NATIONAL BANK, a
                                   national banking association

                                   By:_________________________
                                   Name:_______________________
                                   Title:______________________

ACKNOWLEDGED AND AGREED:

BORROWER:
--------

CONTEMPORARY CONSTRUCTORS, INC.

By: /s/ Michael J. Novak
   -------------------------------------
     Michael J. Novak
     President

                                        3
<PAGE>
OTHER OBLIGORS:
--------------

/s/ Michael J. Novak
----------------------------------------
Michael J. Novak
CCI TELECOM, INC.

By: /s/ Michael J. Novak
   -------------------------------------
      Michael J. Novak, President

BERKSHIRE WIRELESS, INC.

By: /s/ Michael J. Novak
   -------------------------------------
      Michael J. Novak, President

CCI INTEGRATED SOLUTIONS INC.

By: /s/ Michael J. Novak
   -------------------------------------
      Michael J. Novak, President

                                        4
<PAGE>

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