Document:

EXHIBIT 10.4
                                                                    ------------

                         GREENFIELD CAPITAL PARTNERS LLC

July 8, 2005

To:  Global Matrechs, Inc.

Mr. Sheppard:

         This letter serves as notice that with respect to the pending and
outstanding warrants issued by Global Matrechs, Inc. to Greenfield Capital
Partners LLC ("Greenfield") and currently held by Greenfield in connection with
various financings (the "Warrants"), Greenfield hereby waives the oblication of
Global Matrechs, Inc. to register shares of common stock underling the Warrants
in the Company's pending registration statement to be filed as of today's date.

         All rights with respect to registration of shares underlying the
Warrants on any future registration statement are hereby expressly reserved.

                                                      Very truly yours,

                                                      By: /s/ Michael Byl
                                                          ------------------
                                                          Michael Byl
                                                          PresidentEXHIBIT 10.5
                                                                    ------------

                                   MACNAB LLC
                     P.O. Box 30592 S.B.M., Cayside, 2nd Fl.
         George Town, Grand Cayman, Cayman Islands, British West Indies
                  Tel: (345)-949-5570     Fax: (345)-949-79236
        _________________________________________________________________

July 8, 2005

To:  Global Matrechs, Inc.

Mr. Sheppard:

         This letter serves as notice that with respect to the outstanding
warrants issued by Global Matrechs, Inc. to MacNab LLC ("MacNab") and currently
held by MacNab in connection with the recent financing (the "Warrants), MacNab
hereby waives the obligation of Global to register shares of common stock
underling the Warrants in the Company's pending registration statement to be
filed as of today's date.

         All rights with respect to registration of shares underlying the
Warrants on any future registration statement are hereby expressly reserved.

                                           Very truly yours,
                                           MACNAB LLC

                                           By: ______________________________
                                           Navigator Management ltd./DirectorAMENDMENT TO TRANSACTION DOCUMENTS AGREEMENT

     Agreement  made this 27th day of June, 2005 ("Amendment") among GTC Telecom
Corp.,  a  Nevada  corporation (the "Company"), and the signators hereto who are
Subscribers  under  a  certain Subscription Agreement with the Company dated May
23,  2005  ("Subscribers").

     For  good  and  valuable  mutual  consideration, receipt of which is hereby
acknowledged,  the  parties  hereto  agree  as  follows:

     1.     All  capitalized  terms  herein  shall have the meanings ascribed to
them  in  the  Transaction Documents (as defined in the Subscription Agreement).

     2.     The  Company  and  the  Subscribers  hereby  agree  to  amend  the
Transaction  Documents  to  reflect  the  additional Purchase Price ("Additional
Purchase  Price")  as set forth on Schedule A hereto.  Purchase Price shall mean
the  aggregate of the Purchase Price in connection with the May 23, 2005 Closing
Date  and  the  Additional  Purchase  Price.

     3.     An  additional Closing (the "Second Closing") shall take place on or
before  July  5,  2005  (the  "Second  Closing  Date")  in  connection  with the
Additional  Purchase  Price,  Additional  Shares,  Notes  and  Warrants,  upon
satisfaction of all conditions to Closing set forth in the Transaction Documents
and  in  this  Amendment.  The net amount of the Additional Purchase Price after
deduction  of  the  original  issue  discount  and all documents to be delivered
hereunder will be deposited and held with the Escrow Agent and released pursuant
to the Escrow Agreement.  The Initial Shares, Notes and Warrants to be delivered
on the Second Closing Date are included in the definition of "Securities" in the
Subscription  Agreement.

     4.     All the representations and warranties made by the Company contained
in  the  Transaction  Documents  as  of  the Closing Date are hereby made by the
Company as of the Second Closing Date, as if said representations and warranties
were  also  made  and  given  on  such  Second  Closing  Date.

     5.     All  the  representations  and  warranties  made  by the Subscribers
contained in the Transaction Documents as of the Closing Date are hereby made by
the  Subscribers  as  of the Second Closing Date, as if said representations and
warranties  were  also  made  and  given  on  such  Second  Closing  Date.

     6.     All  of  the covenants and conditions set forth in Sections 5, 7, 8,
9,  10, 11 and 12 of the Subscription Agreement in relation to the Closing Date,
Notes, Initial Shares, and Warrant are hereby adopted and renewed by the Company
as  of  the  Second  Closing  Date.

     7.     On  or  before  the Second Closing Date, the Company will deliver to
the  Subscribers  Notes, Additional Shares, and Warrants issued as of the Second
Closing  Date  in  the amounts set forth on Schedule A hereto in connection with
the Additional Purchase Price which the Subscribers will deposit with the Escrow
Agent  on  or  before  the  Second  Closing  Date.

     8.     The  Filing  Date and Effective Date for all Registrable Securities,
including  all Registrable Securities relating to the Additional Purchase Price,
Initial Shares, Notes and Warrants to be issued on the Second Closing Date shall
be  fifteen  (15)  days  and one hundred and twenty (120) days, respectively, as
calculated  from  the  Second  Closing  Date.

     9.     The  Maturity  Date  of the Notes to be issued on the Second Closing
Date  will  be  the same as the Maturity Date of the Notes issued on the Closing
Date.

     10.     The  Warrants  to  be  issued  on  the  Second Closing Date will be
identical to the Warrants issued on the Closing Date except as to the Issue Date
and  Expiration  Date.

     11.     On  or  before the Second Closing Date, the Company will deliver to
the  Subscribers  the  legal  opinion described in Section 6 of the Subscription
Agreement  in  relation to the Second Closing, Additional Purchase Price, Notes,
Additional Shares and Warrants to be delivered on the Second Closing Date, which
opinion  will  be  substantively  identical  to  the  legal opinion delivered in
connection  with  the  Closing.

     11.     On or before the Second Closing Date, the Subsidiaries will deliver
to  the Subscribers an executed Guaranty Agreement in the form annexed hereto as
Exhibit  1.

     12.     In  connection  with the Additional Purchase Price, the Broker will
receive  cash  Broker's  Fees  and  Broker's  Warrants in the same proportion as
received  in  connection  with  the  May  23,  2005  Closing.

     13.     The attorney for the Subscribers will receive additional Legal Fees
of  $6,250  which will be payable on the Second Closing Date out of the Escrowed
Payment  (as  defined  in  the  Escrow  Agreement).

     14.     The  signators  hereto  acknowledge  and  agree  that  the Security
Agreement  and Collateral Agent Agreement executed by the Company, Subsidiaries,
Subscribers  and  Collateral Agent relate to the Additional Purchase Price as if
such  Additional Purchase Price had been paid and released to the Company on the
May  23,  2005  Closing  Date.  The  Collateral  Agent  is  authorized  to  make
additional  security interest filings at the discretion of the Collateral Agent.

     15.     The  parties  hereto agree to expeditiously proceed with the Second
Closing.

     16.     All  other  terms of the Transaction Documents shall remain in full
force  and  effect  and  govern  this  Agreement.

                      [THIS SPACE INTENTIONALLY LEFT BLANK]

<PAGE>
IN  WITNESS  WHEREOF, the undersigned have executed and delivered this Amendment
as  of  the  date  first  written  above.

"COMPANY"                              "THE  COLLATERAL  AGENT"
GTC  TELECOM  CORP.                    BARBARA  R.  MITTMAN
a  Nevada  corporation

By:  /s/ Eric Clemons___               __/s/ Barbara Mittman___________
Its: _President_________

"SUBSIDIARY"                           "SUBSIDIARY"
CURBSIDE  COMMUNICATIONS,  INC.        PERFEXA  SOLUTIONS,  INC.
A  Nevada  corporation                 A  Nevada  corporation

By: _/s/ Gerald DeCiccio_________      By:__/s/ Eric Clemons___________
Its:_President__________________       Its:_President__________________

                                 "SUBSCRIBERS":

__[signature illegible]________         _/s/ Jeffrey M. Haas_________
ALPHA  CAPITAL  AKTIENGESELLSCHAFT      DCOFI  MASTER  LDC

__/s/ Steven Geduld_____________        __/s/ Murray Todd______________
SCG  CAPITAL,  LLC                      SILVER  OAK  INVESTMENTS,  INC.

__/s/ Wilhelm Unger____________       ___/s/ Grushko & Mittman PC_____
ELLIS  INTERNATIONAL  LTD.              GRUSHKO  &  MITTMAN,  P.C.
                                        Escrow  Agent

<PAGE>

<TABLE>
<CAPTION>

SCHEDULE  A  TO  AMENDMENT

<S>                             <C>               <C>          <C>         <C>        <C>
SUBSCRIBER                      ADDITIONAL        NOTE         ADDITIONAL  CLASS A    CLASS B
                                PURCHASE          PRINCIPAL    SHARES      WARRANTS   WARRANTS
                                PRICE
                                (PAYMENT AFTER
                                ORIGINAL ISSUE
                                DISCOUNT)
-----------------------------------------------------------------------------------------------

ALPHA CAPITAL                   $     200,000.00  $235,296.00     470,592  1,411,776  1,176,480
AKTIENGESELLSCHAFT
Pradafant 7
9490 Furstentums
Vaduz, Lichtenstein
Fax: 011-42-32323196

DCOFI MASTER LDC                $     300,000.00  $352,941.00     705,882  2,117,646  1,764,705
830 Third Avenue, 14th Floor
New York, NY 10022
Fax: (212) 922-2081

SCG CAPITAL, LLC                $     125,000.00  $147,059.00     294,118    882,354    735,295
19495 Biscayne Boulevard,
Suite 608
Aventura, FL 33180
Attn: Steven Geduld, President
Fax: (305) 466-4415

SILVER OAK INVESTMENTS, INC.    $     100,000.00  $117,648.00     235,296    705,888    588,240
350 California Street, Suite
1750

San Francisco, CA 94104
Fax: (415) 217-7072

ELLIS INTERNATIONAL LTD.        $      50,000.00  $ 58,824.00     117,648    352,944    294,120
53rd Street Urbanizacion
Obarrio
Swiss Tower, 16th Floor,
Panama
Republic of Panama
Fax: (516) 887-8990
TOTAL                           $        775,000  $911,768.00   1,823,536  5,470,608  4,558,840

</TABLE>

<PAGE>

                                    EXHIBIT 1

                               GUARANTY AGREEMENT

1.     Identification.

     This  Guaranty  Agreement  (the  "Guaranty"),  dated  as of [SECOND CLOSING
DATE],  is  entered  into by and between Curbside Communications, Inc., a Nevada
corporation,  Perfexa Solutions, Inc., a Nevada corporation (each referred to as
"Guarantor"  herein)  and  Barbara  Mittman,  as  collateral agent acting in the
manner  and  to  the  extent described in the Collateral Agent Agreement defined
below  (the  "Collateral  Agent"),  for the benefit of the parties identified on
Schedule  A  hereto  (each  a  "Lender"  and  collectively,  the  "Lenders").

2.     Recitals.

     2.1     Curbside  Communications, Inc. is a direct or indirect wholly-owned
subsidiary  of GTC Telecom Corp., a Nevada corporation ("GTC Telecom").  Perfexa
Solutions, Inc. is a 97% owned subsidiary of GTC Telecom.  The Lenders have made
and  are  making  loans  to  GTC  Telecom  (the "Loans").  Guarantor will obtain
substantial  benefit  from  the  proceeds  of  the  Loans.

     2.2     The  Loans  are  and  will  be  evidenced  by  certain  convertible
promissory  notes  (each a "Convertible Note" and collectively, the "Convertible
Notes") issued by GTC Telecom on or about the date of this Agreement pursuant to
subscription  agreements  and  an  Amendment  to Transaction Documents Agreement
(collectively  herein  "Subscription  Agreements").  The  Convertible  Notes are
further  identified  on  Schedule  A hereto and were and will be executed by GTC
Telecom as "Borrower" or "Debtor" for the benefit of each Lender as the "Holder"
or  "Lender"  thereof.

     2.3     In  consideration  of  the Loans made by Lenders to GTC Telecom and
for  other  good and valuable consideration, and as security for the performance
by  GTC  Telecom  of its obligations under the Convertible Notes and as security
for  the  repayment  of  the Loans and all other sums due from Debtor to Lenders
arising  under  the Convertible Notes, Subscription Agreements, Collateral Agent
Agreement  and  any  other  agreement  between  or  among  them  relating to the
foregoing  (collectively,  the  "Obligations"), Guarantor, for good and valuable
consideration,  receipt  of which is acknowledged, has agreed to enter into this
Agreement  with  the  Collateral  Agent,  for  the  benefit  of  the  Lenders.
Obligations  include  all  future advances by Lenders to GTC Telecom made by all
Lenders  on substantially the same terms and in proportion to their interests in
the  Obligations.

     2.4     The  Lenders  have  appointed  Barbara  Mittman as Collateral Agent
pursuant  to  that  certain Collateral Agent Agreement dated at or about [SECOND
CLOSING  DATE]  ("Collateral Agent Agreement"), among the Lenders and Collateral
Agent.

3.     Guaranty.

     3.1     Guaranty.  Guarantors  hereby  unconditionally  and  irrevocably
guarantee jointly and severally the punctual payment, performance and observance
when  due,  whether  at stated maturity, by acceleration or otherwise, of all of
the  Obligations  now  or  hereafter  existing,  whether for principal, interest
(including, without limitation, all interest that accrues after the commencement
of  any  insolvency, bankruptcy or reorganization of GTC Telecom, whether or not
constituting  an  allowed  claim in such proceeding), fees, commissions, expense
reimbursements,  liquidated  damages,  indemnifications  or  otherwise  (such
obligations,  to  the  extent  not  paid  by  GTC  Telecom being the "Guaranteed
Obligations"), and agrees to pay any and all costs, fees and expenses (including
reasonable  counsel  fees  and  expenses)  incurred  by Collateral Agent and the
Lenders  in  enforcing  any rights under the guaranty set forth herein.  Without
limiting  the generality of the foregoing, Guarantor's liability shall extend to
all amounts that constitute part of the Guaranteed Obligations and would be owed
by  GTC  Telecom to Collateral Agent and the Lenders, but for the fact that they
are  unenforceable  or  not  allowable  due  to  the existence of an insolvency,
bankruptcy  or  reorganization  involving  GTC  Telecom.

     3.2     Guaranty  Absolute.  Guarantor  guarantees  that  the  Guaranteed
Obligations  will  be  paid  strictly  in  accordance  with  the  terms  of  the
Convertible  Notes,  regardless of any law, regulation or order now or hereafter
in  effect  in  any  jurisdiction  affecting  any of such terms or the rights of
Collateral  Agent  or  the  Lenders  with  respect  thereto.  The obligations of
Guarantor  under  this  Agreement are independent of the Guaranteed Obligations,
and a separate action or actions may be brought and prosecuted against Guarantor
to  enforce  such  obligations,  irrespective  of  whether any action is brought
against  GTC  Telecom or any other Guarantor or whether GTC Telecom or any other
Guarantor  is  joined in any such action or actions.  The liability of Guarantor
under  this  Agreement  constitutes  a primary obligation, and not a contract of
surety,  and  shall  be irrevocable, absolute and unconditional irrespective of,
and  Guarantor  hereby  irrevocably  waives any defenses it may now or hereafter
have  in  any  way  relating  to,  any  or  all  of  the  following:

     (a)     any  lack of validity or enforceability of the Convertible Notes or
any  agreement  or  instrument  relating  thereto;

     (b)     any  change  in  the time, manner or place of payment of, or in any
other  term of, all or any of the Guaranteed Obligations, or any other amendment
or  waiver of or any consent to departure from the Convertible Notes, including,
without  limitation,  any  increase in the Guaranteed Obligations resulting from
the  extension  of  additional  credit  to  GTC  Telecom  or  otherwise;

     (c)     any  taking,  exchange, release, subordination or non-perfection of
any  Collateral,  or any taking, release or amendment or waiver of or consent to
departure from any other guaranty, for all or any of the Guaranteed Obligations;

     (d)     any  change, restructuring or termination of the corporate, limited
liability  company  or  partnership  structure  or  existence of GTC Telecom; or

          (e)     any  other  circumstance  (including,  without limitation, any
statute of limitations) or any existence of or reliance on any representation by
Collateral  Agent  or  the  Lenders  that  might  otherwise constitute a defense
available  to,  or a discharge of, GTC Telecom or any other guarantor or surety.

This  Agreement shall continue to be effective or be reinstated, as the case may
be, if at any time any payment of any of the Guaranteed Obligations is rescinded
or  must  otherwise  be  returned  by Collateral Agent, the Lenders or any other
entity  upon  the insolvency, bankruptcy or reorganization of the GTC Telecom or
otherwise  (and  whether  as  a  result of any demand, settlement, litigation or
otherwise),  all  as  though  such  payment  had  not  been  made.

     3.3     Waiver.  Guarantor  hereby  waives promptness, diligence, notice of
acceptance  and  any  other  notice  with  respect  to  any  of  the  Guaranteed
Obligations  and this Agreement and any requirement that Collateral Agent or the
Lenders  or  exhaust  any  right  or take any action against any Borrower or any
other  person  or entity or any Collateral.  Guarantor acknowledges that it will
receive  direct  and  indirect  benefits  from  the  financing  arrangements
contemplated  herein  and  that  the  waiver  set  forth  in this Section 3.3 is
knowingly  made  in contemplation of such benefits.  Guarantor hereby waives any
right  to  revoke  this  Agreement,  and  acknowledges  that  this  Agreement is
continuing in nature and applies to all Guaranteed Obligations, whether existing
now  or  in  the  future.

     3.4       Continuing Guaranty; Assignments.  This Agreement is a continuing
guaranty  and  shall  (a) remain in full force and effect until the later of the
indefeasible  cash  payment  in full of the Guaranteed Obligations and all other
amounts  payable  under  this  Agreement,  the  Subscription  Agreements  and
Convertible Notes, (b) be binding upon Guarantor, its successors and assigns and
(c)  inure  to  the  benefit  of  and be enforceable by Collateral Agent and the
Lenders  and  their  successors,  pledgees,  transferees  and  assigns.  Without
limiting  the  generality  of the foregoing clause (c), the Collateral Agent and
any  Lender  may  pledge, assign or otherwise transfer all or any portion of its
rights  and obligations under this Agreement (including, without limitation, all
or  any  portion  of its Convertible Notes owing to it) to any other Person, and
such other Person shall thereupon become vested with all the benefits in respect
thereof  granted  such  Collateral  Agent  or  Lender  herein  or  otherwise.

     3.5          Subrogation.  No  Guarantor  will  exercise any rights that it
may now or hereafter acquire against the Collateral Agent or any Lender or other
Guarantor  (if  any)  that  arise  from  the  existence, payment, performance or
enforcement  of  such  Guarantor's  obligations under this Agreement, including,
without  limitation,  any  right  of  subrogation,  reimbursement,  exoneration,
contribution  or  indemnification,  whether  or  not such claim, remedy or right
arises  in  equity  or under contract, statute or common law, including, without
limitation, the right to take or receive from the Collateral Agent or any Lender
or  other  Guarantor (if any), directly or indirectly, in cash or other property
or  by  set-off or in any other manner, payment or security solely on account of
such  claim, remedy or right, unless and until all of the Guaranteed Obligations
and  all other amounts payable under this Agreement shall have been indefeasibly
paid  in  full  in  cash.  If (i) any Guarantor shall make payment to Collateral
Agent, or the Lenders of all or any part of the Guaranteed Obligations, and (ii)
of  all or any of the Guaranteed Obligations and all other amounts payable under
this  Agreement  such  payments  shall  be  paid  in  full  in  cash.

     3.6     Maximum Obligations. Notwithstanding any provision herein contained
to  the contrary, Guarantor's liability with respect to the Obligations shall be
limited  to an amount not to exceed, as of any date of determination, the amount
that  could  be  claimed  by Lenders from Guarantor without rendering such claim
voidable  or  avoidable  under  Section  548 of the Bankruptcy Code or under any
applicable  state Uniform Fraudulent Transfer Act, Uniform Fraudulent Conveyance
Act  or  similar  statute  or  common  law.

     4.     Miscellaneous.

     4.1  Expenses.  Guarantor shall pay to the Collateral Agent, on demand, the
amount  of  any  and  all  reasonable  expenses,  including, without limitation,
attorneys'  fees,  legal  expenses and brokers' fees, which the Collateral Agent
may  incur  in  connection  with  (a) exercise or enforcement of any the rights,
remedies  or  powers of the Collateral Agent hereunder or with respect to any or
all  of  the Obligations; or (b) failure by Guarantor to perform and observe any
agreements  of  Guarantor contained herein which are performed by the Collateral
Agent.

     4.2     Waivers,  Amendment  and  Remedies.  No  course  of  dealing by the
Collateral Agent and no failure by the Collateral Agent to exercise, or delay by
the  Collateral  Agent in exercising, any right, remedy or power hereunder shall
operate  as  a  waiver  thereof, and no single or partial exercise thereof shall
preclude  any  other  or  further  exercise thereof or the exercise of any other
right,  remedy  or power of the Collateral Agent.  No amendment, modification or
waiver  of  any  provision  of this Agreement and no consent to any departure by
Guarantor  therefrom,  shall,  in  any event, be effective unless contained in a
writing signed by the Collateral Agent, and then such waiver or consent shall be
effective  only  in the specific instance and for the specific purpose for which
given.  The  rights,  remedies  and  powers  of  the  Collateral Agent, not only
hereunder,  but also under any instruments and agreements evidencing or securing
the Obligations and under applicable law are cumulative, and may be exercised by
the Collateral Agent from time to time in such order as the Collateral Agent may
elect.

     4.3     Notices.  All  notices  or  other  communications  given  or  made
hereunder  shall  be  in  writing  and  shall  be personally delivered or deemed
delivered  the  first  business  day  after being faxed (provided that a copy is
delivered  by  first class mail) to the party to receive the same at its address
set forth below or to such other address as either party shall hereafter give to
the  other  by  notice  duly  made  under  this  Section:

To  GTC  Telecom  and
Guarantor,  to:               GTC  Telecom  Corp.
                              3151  Airway  Avenue,  Suite  P-3
                              Costa  Mesa,  CA  92626
                              Attn:  Vi  Bui,  Esq.
                              Fax:  (714)  549-7707

To  Lenders:                  To the addresses and telecopier  numbers set
                              forth on Schedule  A

To  the  Collateral  Agent:   Barbara  R.  Mittman
                              Grushko  &  Mittman,  P.C.
                              551  Fifth  Avenue,  Suite  1601
                              New  York,  New  York  10176
                              Fax:  (212)  697-3575

Any  party  may  change  its  address  by written notice in accordance with this
paragraph.

     4.4     Term;  Binding  Effect.  This  Agreement  shall  (a) remain in full
force  and  effect  until  payment  and  satisfaction  in  full  of  all  of the
Obligations;  (b)  be  binding  upon  Guarantor and its successors and permitted
assigns;  and  (c) inure to the benefit of the Collateral Agent, for the benefit
of  the Lenders and their respective successors and assigns.  All the rights and
benefits  granted by Guarantor to the Collateral Agent and Lenders hereunder and
other  agreements  and  documents  delivered  in connection therewith are deemed
granted  to  both the Collateral Agent and Lenders.  Upon the payment in full of
the  Obligations,  (i)  this Agreement shall terminate and (ii) Collateral Agent
will,  upon  Guarantor's request and at Guarantor's expense, execute and deliver
to  Guarantor  such  documents as Guarantor shall reasonably request to evidence
such  termination,  all  without  any  representation,  warranty  or  recourse
whatsoever.

     4.5     Captions.  The  captions  of  Paragraphs,  Articles and Sections in
this  Agreement  have been included for convenience of reference only, and shall
not  define  or  limit  the  provisions  hereof  and  have  no  legal  or  other
significance  whatsoever.

     4.6     Governing  Law;  Venue;  Severability.  This  Agreement  shall  be
governed  by  and construed in accordance with the laws of the State of New York
without regard to principles of conflicts or choice of law, except to the extent
that  the  perfection  of the security interest granted hereby in respect of any
item  of  Collateral  may  be  governed by the law of another jurisdiction.  Any
legal  action or proceeding against Guarantor with respect to this Agreement may
be  brought  in  the courts of the State of New York or of the United States for
the  Southern  District  of  New  York,  and,  by execution and delivery of this
Agreement, Guarantor hereby irrevocably accepts for itself and in respect of its
property,  generally  and  unconditionally,  the  jurisdiction  of the aforesaid
courts.  Guarantor hereby irrevocably waives any objection which they may now or
hereafter  have  to  the  laying  of  venue  of  any of the aforesaid actions or
proceedings  arising  out of or in connection with this Agreement brought in the
aforesaid  courts  and hereby further irrevocably waives and agrees not to plead
or  claim  in  any  such court that any such action or proceeding brought in any
such  court has been brought in an inconvenient forum.  If any provision of this
Agreement,  or  the  application  thereof to any person or circumstance, is held
invalid,  such  invalidity  shall  not  affect any other provisions which can be
given  effect  without the invalid provision or application, and to this end the
provisions  hereof  shall be severable and the remaining, valid provisions shall
remain  of  full  force  and  effect.

     4.7  Satisfaction  of  Obligations. For all purposes of this Agreement, the
payment in full of the Obligations shall be conclusively deemed to have occurred
when  either  the  Obligations  have  been  indefeasibly  paid  in  cash  or all
outstanding  Convertible  Notes  have been converted to common stock pursuant to
the  terms  of  the  Convertible  Notes  and  the  Subscription  Agreements.

     4.8     Counterparts/Execution.  This  Agreement  may  be  executed  in any
number  of  counterparts  and  by  the  different signatories hereto on separate
counterparts,  each of which, when so executed, shall be deemed an original, but
all  such  counterparts  shall constitute but one and the same instrument.  This
Agreement  may  be  executed  by  facsimile signature and delivered by facsimile
transmission.

IN  WITNESS  WHEREOF,  the undersigned have executed and delivered this Guaranty
Agreement,  as  of  the  date  first  written  above.

"GUARANTOR"                         "GUARANTOR"
CURBSIDE  COMMUNICATIONS,  INC.      PERFEXA  SOLUTIONS,  INC.
A  Nevada  corporation               A  Nevada  corporation

By:  _/s/ Gerald DeCiccio_______     By:__Eric Clemons____________________
Its:  President_________________     Its:_President_______________________

"THE  COLLATERAL  AGENT"
BARBARA  R.  MITTMAN

_/s/ Barbara Mittman__________________

                             APPROVED BY "LENDERS":

__[signature illegible]_________        _/s/ Jeffrey M. Haas_________
ALPHA  CAPITAL  AKTIENGESELLSCHAFT      DCOFI  MASTER  LDC

________________________________        _______________________________
__/s/ Steven Geduld_____________
SCG  CAPITAL,  LLC

__/s/ Murray Todd______________        __/s/ Wilhelm Unger____________
SILVER  OAK  INVESTMENTS,  INC.         ELLIS  INTERNATIONAL  LTD.

        THIS GUARANTY AGREEMENT MAY BE SIGNED BY FACSIMILE SIGNATURE AND
                 DELIVERED BY CONFIRMED FACSIMILE TRANSMISSION.

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