Document:

EXHIBIT 10.1
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                               FINANCING AGREEMENT

     This Financing Agreement (the "Agreement"), dated as of September 28, 2007,
is entered into by and between THINKENGINE NETWORKS, INC. ("Client"), and Sand
Hill Finance, LLC ("SHF").

1. PURCHASE OF ACCOUNTS.

     1.1 SCHEDULE OF ACCOUNTS. Client may request that SHF purchase Accounts by
delivering to SHF a Schedule of Accounts (the "Schedule of Accounts") in the
form of Exhibit A, and, if requested by SHF, an invoice for each of the listed
Accounts, signed by an authorized representative of Client. SHF is authorized to
act upon the written or oral directions of any person that SHF believes is an
authorized representative. SHF may, in its sole discretion, elect to purchase
any Account included in a Schedule of Accounts, but is under no obligation to
purchase any such Account.

     1.2 PURCHASED ACCOUNT; CREATION OF A BOOK RESERVE. Upon acceptance of any
such Account (a "Purchased Account") SHF shall pay to Client EIGHTY percent
(80%) of the face amount of the Purchased Account (the "Advance"). The aggregate
outstanding Advances under this Agreement shall not exceed ONE MILLION DOLLARS
($1,000,000) ($1,000,000) (the "Credit Limit"). Client sells, transfers and
assigns to SHF, all of Client's right, title and interest in and to each
Purchased Account, together with all of the goods represented by each Purchased
Account, all of Client's rights and remedies as an unpaid Client under
applicable law, and all of Client's rights in and to all security for each such
Purchased Account and guaranties thereof, and all rights against third parties
with respect thereto. Any goods recovered or received by Client shall be set
aside, marked with SHF's name, and held for SHF's account as owner. The amount
of Purchased Accounts outstanding at any time shall constitute the "Account
Balance". Upon payment of the Advance to Client, SHF shall also create a reserve
on SHF's books and records with respect to each Purchased Account in an amount
equal to the face amount of the Purchased Account minus the Advance for such
Purchased Account (the "Reserve"). Notwithstanding the foregoing, in no event
shall the Reserve with respect to all Purchased Accounts outstanding at any time
be less than TWENTY percent (20%) of the Account Balance. SHF may, in its
discretion, change the percentage of the Advance and the Reserve at any time,
but only with respect to any future Purchased Account that SHF acquires
following SHF's disclosure to Client in writing of any different percentage
applicable to such future Advance or the Reserve related thereto.

     1.3 COLLECTION OF ACCOUNTS. SHF may directly collect each Purchased
Account. At the request of SHF, Client and SHF shall notify each person liable
on a Purchased Account (an "Account Debtor") by letter in a form acceptable to
SHF that Purchased Accounts owed by such Account Debtor have been assigned and
are payable to SHF. Client shall not take or permit any action to change or
revoke any notification without SHF's prior written consent and shall not
request any Account Debtor to pay any Purchased Account to Client. If Client
receives any payments of any Purchased Accounts despite this Agreement, Client
shall (i) immediately notify SHF of such payment, (ii) hold such payment in
trust and safekeeping for SHF, and (iii) immediately turn over to SHF the
identical checks, monies or other forms of payment received, with any necessary
endorsement or assignment. SHF shall have the right to endorse Client's name on
all payments received in connection with each Purchased Account and on any other
proceeds of Collateral (as defined in Section 6). SHF shall apply payments
received first to the Purchased Accounts and, so long as there does not then
exist an Event of Default or an event that with notice or lapse of time would
constitute an Event of Default, at SHF's option, SHF shall credit the Reserve or
remit to Seller the excess; PROVIDED, that if any Event of Default or event that
with notice or lapse of time or otherwise would constitute an Event of Default
then exists, SHF shall have no duty to remit any such collections, which
collections constitute Collateral, and may apply such collections to reduce the
Obligations (as defined in Section 6). Any excess beyond that which is required
to repay the Obligations shall be remitted to the party entitled to it under
applicable law. Client shall indemnify and hold SHF harmless from any expenses,
damages and claims arising out of SHF's collection of any Accounts, other than
ordinary course collection expenses.

     1.4 FULL RECOURSE. The purchase by SHF of Purchased Accounts from Client
shall be with full recourse against Client. Client shall be liable for any
deficiency in the event the Obligations exceed the amount of Purchased Accounts
and the other Collateral.

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2. FEES AND CUSTOMER PAYMENTS.

     2.1 FEES. On the date of this Agreement, and on each anniversary of the
date of this Agreement, Client shall pay SHF a commitment fee equal to ONE
percent (1.0%) of the Credit Limit. Client shall pay to SHF on the last day of
each calendar month (the "Settlement Date"), a finance fee (the "Finance Fees")
in an amount equal to one and sixty five one hundredths percent (1.65%) per
month of the average daily Obligations outstanding during the month ending on
such Settlement Date (the "Settlement Period"). This rate will adjust on a per
annum basis equal to any changes to the Commercial Prime Rate, as published in
The Wall Street Journal, Western Edition, on a daily basis (currently 7.75%).
For example, if the Commercial Prime Rate is decreased by 0.25% the Finance Fee
will be reduced by 0.0208% on a monthly basis. In the event the Reserve (as
described in Section 1.2) is deficient for three consecutive business days, and
SHF has provided Client with three business days notice thereof, the Client
shall pay SHF a fee equal to two percent (2.0%) of the amount by which the
Reserve is deficient ("Over-Advance Fee"). Such accrued fees shall be netted
against the Reserve as described in Section 3.3. Client shall pay SHF a fee of
$40.00 for each check or item of payment that is returned to SHF for
insufficient funds and $25.00 for each wire, sent or received. In no event shall
any charges that may constitute interest hereunder exceed the highest rate
permitted under applicable law. In the event that a court of competent
jurisdiction makes a final determination that SHF has received interest
hereunder in excess of the maximum lawful rate, then such excess shall be deemed
a payment of principal and the interest payable hereunder deemed amended to the
amount payable under the maximum lawful rate.

     2.2 CREDITING CUSTOMER PAYMENTS. Within one business day after SHF's
receipt of payment of a Purchased Account, SHF shall credit that payment (the
"Customer Payments") to the amount outstanding with respect to the Purchased
Account, provided that if any Customer Payment is subsequently dishonored or SHF
does not receive good funds for any reason, the amount of such uncollected
Customer Payment shall be included in the Account Balance as if such Customer
Payment had not been received, and Finance Fees shall accrue thereon, and the
credit to the specific Purchased Account shall be reversed. Notwithstanding the
foregoing, upon the occurrence of an Event of Default, SHF shall apply all
Customer Payments to Client's Obligations under this Agreement in such order and
manner as SHF shall, in its sole discretion, determine.

     2.3 ACCOUNTING. SHF shall deliver to Client after each Settlement Date, a
statement of Client's account which shall include an accounting of the
transactions for that Settlement Period, including the amount of all Finance
Fees, Administrative Fees, Adjustments, Chargeback Amounts, Customer Payments
and Purchased Accounts. The accounting shall constitute an account stated and
shall be binding on Client and deemed correct in the absence of manifest error
unless Client delivers to SHF a written objection within thirty (30) days after
such accounting is received by Client.

3. ADJUSTMENT, CHARGEBACKS AND REMITTANCES.

     3.1 ADJUSTMENTS. If any Account Debtor asserts any offset, right or claim
with respect to a Purchased Account, or pays less than the face amount of such
Purchased Account (each, an "Adjustment"), SHF may, in its sole discretion,
either (A) deduct the amount of the Adjustment in calculating any amount owed to
Client, or (B) chargeback to Client the Purchased Account with respect to which
the Adjustment is asserted. Client shall advise SHF immediately upon learning of
any Adjustment asserted by any Account Debtor.

     3.2 CHARGEBACKS. SHF shall have the right to chargeback to Client any
Purchased Account:

          (a) that remains unpaid ninety (90) calendar days after the invoice
     date;

          (b) with respect to which there has been a breach of any warranty,
     representation, covenant or agreement set forth in this Agreement;

          (c) with respect to which the Account Debtor asserts any Adjustment,
     or

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          (d) that is owed by an Account Debtor who has filed, or has had filed
     against it, any bankruptcy case, insolvency proceeding, assignment for the
     benefit of creditors, receivership or insolvency proceeding, or who has
     become insolvent (as defined in the United States Bankruptcy Code) or who
     is generally not paying its debts as such debts become due.

     Upon demand by SHF, Client shall pay to SHF the full face amount of any
Purchased Account that has been charged back pursuant to this Section, or to the
extent partial payment has been made, the amount by which the face amount of
such Purchased Account exceeds such partial payment, together with any
attorneys' fees and costs incurred by SHF in connection with collecting such
Purchased Account (collectively, the "Chargeback Amount"), SHF shall advise
Client regarding how the Chargeback Amount shall be paid, which may be by any
one or a combination of the following, in SHF's sole discretion: (1) payment in
cash immediately upon demand; (2) deduction from or offset against any
Remittance that would otherwise be payable to Client; (3) payment from any
Advances that may otherwise be made to Client; (4) adjustment to the Reserve
pursuant to Section 1.2 hereof; or (5) delivery of substitute Accounts and a
Schedule of Accounts acceptable to SHF, which Accounts shall constitute
Purchased Accounts.

     3.3 REMITTANCE. SHF shall remit to Client within one business day after the
Settlement Date, the amount, if any, that SHF owes to Client at the end of the
Settlement Period based on the following calculations set forth below (the
"Remittance"); provided, that if there then exists any Event of Default, and
while Event of Default is continuing, SHF shall not be obligated to remit any
payments to Client. If the amount resulting from the following calculation is a
positive number, such amount is the amount of the Remittance for such Settlement
Period. If the resulting amount is a negative number, such amount is the amount
owed by Client to SHF.

     The calculations to be used are as follows:

          (a) The sum of the following:

               (1)  The Reserve as of the beginning of the subject Settlement
                    Period, PLUS

               (2)  The Reserve created for each Account purchased during the
                    subject Settlement Period;

MINUS

          (b) The sum of the following:

               (1)  Finance Fees accrued during the subject Settlement Period;
                    PLUS

               (2)  Adjustments during the subject Settlement Period; PLUS

               (3)  Chargeback Amounts, to the extent SHF has agreed to accept
                    payment of any such Chargeback Amount by deduction from the
                    Remittance; PLUS

               (4)  All professional fees and expenses as set forth in Section 9
                    for which oral or written demand has been made by SHF during
                    the subject Settlement Period; PLUS

               (5)  The Reserve for the Account Balance as of the first day of
                    the following Settlement Period in the minimum percentage
                    set forth in Section 1.2 hereof.

If the foregoing calculations result in a Remittance payable to Client, SHF
shall make such payment subject to SHF's rights of offset and recoupment, and
its right to deduct any Chargeback Amount as set forth in Section 3.2. If the
foregoing calculations result in an amount due to SHF from Client, Client shall
make such payment by any one or a combination of the methods set forth in
Section 3.2 hereof for chargebacks, as determined by SHF in its discretion.

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4. REPRESENTATIONS AND WARRANTIES. Client represents to SHF as follows: (a)
Client is not in default under any agreement under which Client owes any money,
or any agreement, the violation or termination of which could have a material
adverse effect on Client; (b) Client has taken all action necessary to authorize
the execution, delivery and performance of this Agreement; (c) except for liens
approved in writing by SHF, there are no liens, security interests or other
encumbrances on the Collateral; (d) the execution and performance of this
Agreement do not conflict with, or constitute a default under, any agreement to
which Client is party or by which Client is bound; (e) the information provided
to SHF on or prior to the date of this Agreement is true and correct in all
material respects; (f) all financial statements and other information provided
to SHF fairly present Client's financial condition as of or for the applicable
dates or periods, and there has not been a material adverse change in the
financial condition of Client since the date of the most recent of the financial
statements submitted to SHF; (g) Client is in compliance with all laws and
orders applicable to it; (h) Client is not party to any litigation and is not
the subject of any material government investigation, and Client has no
knowledge of any pending litigation or investigation or the existence of
circumstances that reasonably could be expected to give rise to such litigation
or investigation; (i) no representation or other statement made by Client to SHF
contains any untrue statement of a material fact or omits to state a material
fact necessary to make any statements made to SHF not misleading; and (j) each
Account described on each Schedule of Accounts is owned by Client, is correctly
stated therein, is not in dispute, is unconditionally owing at the time stated
in the invoice evidencing such Account as attached to the Schedule of Accounts,
is not past due or subject to any offset or in default, represents a bona fide
indebtedness arising from the actual sale of goods or performance of services to
an Account Debtor in the ordinary course of Client's business which has been
received and finally accepted by the Account Debtor.

5. COVENANTS.

     (a) Reports. Upon request by SHF, Client will provide to SHF in form and
substance acceptable to SHF (i) monthly unaudited financial statements within
forty-five (45) days after the last day of each month (other than the month in
which Client's fiscal year ends), prepared in accordance with GAAP, consistently
applied; (ii) fiscal year end financial statements within ninety (90) days after
the last day of each fiscal year; and (iii) such other information relating to
Client's operations and condition, as SHF may reasonably request from time to
time. SHF shall have the right to review and copy Client's books and records and
audit and inspect the Collateral, from time to time, upon reasonable notice to
Client. Client will reimburse SHF for the reasonable costs it may incur from
time to time in such inspections and review.

     (b) Insurance. Client will maintain insurance on the tangible Collateral
and Client's business, in amounts and of a type that are customary to businesses
similar to Client's, and SHF will be named in a lender's loss payable
endorsement in favor of SHF, in form reasonably acceptable to SHF.

     (c) Negative Covenants. Without SHF's prior written consent, Client shall
not do any of the following: (i) permit or suffer a change in control of Client
or a transfer of more than fifty percent (50%) of its securities; (ii) acquire
any assets, except in the ordinary course of business or in a transaction
involving the payment of an aggregate amount of One Hundred Thousand dollars
($100,000) or less; (iii) sell, lease, or transfer any property except for sales
of Inventory and Equipment in the ordinary course of business; (iv) transfer,
sell or license any intellectual property, except for non-exclusive licenses
thereof entered into in the ordinary course of business; (v) pay or declare any
dividends on Client's stock (except for dividends payable solely in stock of
Client); (vi) redeem, purchase or otherwise acquire, any of Client's stock,
(vii) permit any Account Debtor to make payments on a Purchased Account other
than to SHF; (viii) make any investments in, or loans or advances to, any person
other than in the ordinary course of business as currently conducted; (ix)
directly or indirectly enter into any material transaction with any affiliate of
Client except for transactions that are in the ordinary course of Client's
business, and on fair and reasonable terms that are no less favorable to Client
than would be obtained in an arm's length transaction with a non-affiliated
person; (x) make any payment on any indebtedness that is subordinate to the
Obligations, other than in accordance with the subordination agreement, if any,
in favor of SHF relating thereto; (xi) incur any indebtedness other than as
contemplated by an intercreditor agreement with Vencore Solutions or trade
credit incurred in the ordinary course of business, (xii) permit any lien or
security interest to attach to any Property other than in favor of SHF or as
contemplated by an intercreditor agreement with Vencore Solutions; or, (xiii)
fail to make any tax payment on or before the due date; or (xiv) agree to do any
of the foregoing.

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6. GRANT OF SECURITY INTEREST. To secure the prompt payment and performance of
all fees, amounts and obligations of Client now or hereafter owing to SHF under
this or any other agreement, including reasonable attorneys fees, collectively,
(the "Obligations"), Client hereby grants to SHF a security interest in all of
Client's property, now owned or hereafter acquired, including all accounts,
inventory, chattel paper, documents, instruments, letters of credit, securities,
general intangibles, deposit accounts, inventory, equipment, investment
property, financial assets, and all proceeds of the foregoing (collectively, the
"Collateral") , provided that Collateral shall not include Borrower's
copyrights, patents or trademarks (the "Intellectual Property", but shall
include all proceeds from the disposition of Intellectual Property. Client will
not grant a security interest to any person in the Intellectual Property. If
Client does so in violation of this Section, "Collateral" automatically shall
include Intellectual Property effective from the date of this Agreement.

7. EVENTS OF DEFAULT; REMEDIES. Any one or more of the following shall
constitute an Event of Default under this Agreement: (a) Client's failure (i) to
pay all or any part of the principal or interest hereunder on the date due and
payable or (ii) to comply in all material respects with any agreement or
covenant set forth in this Agreement, (iii) to comply with the terms of any
material contract to which Client is a party and any agreement pursuant to which
Client has incurred indebtedness, or (iv) to comply with any law to which Client
is subject; (b) Any of Client's assets are attached or become subject to levy or
legal proceeding, or if Client becomes insolvent, or becomes the subject of any
case or proceeding under the United States Bankruptcy Code or any other law
relating to the reorganization or restructuring of debt (an "Insolvency Event");
or (c) any representation made to SHF in this Agreement, the Schedule of
Accounts, the Warrant issued of even date herewith, or any information given to
SHF by or on behalf of Client shall be incorrect in any respect; or (d) the
occurrence of a material adverse change in Client's condition or prospects. Upon
the occurrence of an Event of Default, (a) all fees and other amounts owing
hereunder shall, at the option of SHF, be immediately due and payable; (b) the
Finance Fee shall be increased at a per annum rate equal to five percentage
points above the rate in effect immediately prior to the Event of Default; (c)
and SHF may exercise all of the rights of a secured party under the Uniform
Commercial Code. SHF shall have a right to dispose of the Collateral in any
commercially reasonable manner, and shall have a royalty-free license to use any
name, trademark, advertising matter or any property of a similar nature to
complete production of, advertisement for, and disposition of any Collateral.
Upon an event of default, SHF shall have a license to, upon reasonable notice,
enter into, occupy and use Client's premises and the Collateral without charge
to exercise any of SHF's rights or remedies under this Agreement. All rights are
cumulative and may be exercised in SHF's discretion singularly or together with
any other rights.

8. POWER OF ATTORNEY

     8.1 Client appoints SHF and its designees as Client's true and lawful
attorney in fact, to exercise in SHF's discretion, and regardless of whether an
Event of Default is then existing, all of the following powers, such powers
being coupled, with an interest: (A) to receive, deposit, and endorse Client's
name on all checks, drafts, money orders and other forms of payment relating to
the Purchased Accounts; (B) to compromise, prosecute, or defend any action,
claim, case, or proceeding relating to the Purchased Accounts, including the
filing of a claim or the voting of such claims in any bankruptcy case, all in
SHF's name or Client's name, as SHF may elect; (C) to receive, open, and
redirect to Client all mail addressed to Client for the purpose of collecting
the Purchased Accounts and to take all the actions permitted in subsection (A)
above with respect to any payment in any such mail; and (D) to do all acts and
things necessary or expedient, in furtherance of any such purposes.

     8.2 Furthermore, after the occurrence of an Event of Default and during
continuance thereof, Client appoints SHF and its designees as Client's true and
lawful attorney in fact, to exercise in SHF's discretion, all of the following
powers, such powers being coupled, with an interest: (1) to notify all Account
Debtors to make payment directly to SHF; (2) to receive, deposit, and endorse
Client's name on all checks, drafts, money orders and other forms of payment
relating to the Accounts; (3) to demand, collect, receive, sue, and give
releases to any Account Debtor for the monies due or which may become due on or
in connection with the Accounts; (4) to compromise, prosecute, or defend any
action, claim, case, or proceeding relating to the Accounts, including the
filing of a claim or the voting of such claims in any bankruptcy case, all in
SHF's name or Client's name, as SHF may elect; (5) to sell, assign, transfer,
pledge, compromise, or discharge any Accounts; (6) to receive, open, and
redirect to Client all mail addressed to Client for the purpose of collecting
the Accounts and to take all the actions permitted in subsection (2) above with
respect to any payment in any such mail; (7) to dispose of any Collateral, and
(8) to do all acts and things necessary or expedient, in furtherance of any such
purposes. Upon the occurrence of an Event of

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Default, all of the power of attorney rights granted by Client to SHF hereunder
shall be applicable with respect to all Collateral.

9. ADMINISTRATIVE EXPENSES AND ATTORNEYS' FEES. Client shall pay to SHF
immediately upon demand, all costs and expenses, including reasonable fees and
expenses of attorneys and other professionals, that SHF incurs in connection
with any and all of the following (other than ordinary course administrative
expenses): (A) preparing and enforcing this Agreement, or any other agreement
executed in connection herewith; (B) perfecting, protecting or enforcing SHF's
interest in the Purchased Accounts and the other Collateral; (C) collecting the
Purchased Accounts and the Obligations; (D) defending or in any way addressing
claims made or litigation initiated by or against SHF as a result of SHF's
relationship with Client or any guarantor; and (E) representing SHF in
connection with any bankruptcy case or insolvency proceeding involving Client,
any Purchased Account, any other Collateral or any Account Debtor. Any
attorneys' fees and expenses may, at SHF's option, be netted against the reserve
as set forth in Section 3.3.

10. TERM AND TERMINATION. The term of this Agreement shall be for one (1) year
from the date hereof and from year to year thereafter unless terminated in
writing by SHF or Client. Notwithstanding the foregoing, any termination of this
Agreement shall not affect SHF's security interest in the Collateral and SHF's
ownership of the Purchased Accounts, and this Agreement shall continue to be
effective, and SHF's rights and remedies hereunder shall survive such
termination, until all transactions entered into and Obligations incurred
hereunder or in connection herewith have been completed and satisfied in full.

11. MISCELLANEOUS.

     11.1 SEVERABILITY. In the event that any provision of this Agreement is
held to be invalid or unenforceable, this Agreement will be construed as not
containing such provision and the remainder of the Agreement shall remain in
full force and effect.

     11.2 CHOICE OF LAW. This Agreement shall be governed by and interpreted in
accordance with the laws of the State of California, without giving effect to
principles of conflicts of law. Unless otherwise defined, capitalized terms
shall have the meaning assigned in the Uniform Commercial Code.

     11.3 NOTICES. All notices shall be given to SHF and Client at the addresses
set forth in this Agreement and shall be deemed to have been delivered and
received: (A) if mailed, three (3) calendar days after deposited in the United
States mail, first class, postage prepaid; (B) one (1) calendar day after
deposit with an overnight mail or messenger service; or (C) on the same date of
transmission if sent by hand delivery or fax.

     11.4 JURY WAIVER; ARBITRATION; JURISDICTION. SHF AND CLIENT IRREVOCABLY
WAIVE ANY RIGHT TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR
ARISING OUT OF THIS AGREEMENT OR ANY TRANSACTIONS CONTEMPLATED BY THIS
AGREEMENT, INCLUDING CONTRACT CLAIMS, TORT CLAIMS AND ALL OTHER COMMON LAW OR
STATUTORY CLAIMS. IF THIS JURY WAIVER IS FOR ANY REASON NOT ENFORCEABLE, THEN
SHF AND CLIENT AGREE TO RESOLVE AL CLAIMS, CAUSES AND DISPUTES THROUGH FINAL AND
BINDING ARBITRATION TO BE HELD IN SANTA CLARA COUNTY, CALIFORNIA IN ACCORDANCE
WITH THE THEN-CURRENT COMMERCIAL ARBITRATION RULES OF THE AMERICAN ARBITRATION
ASSOCIATION. JUDGMENT UPON ANY AWARD RESULTING FROM ARBITRATION MAY BE ENTERED
INTO AND ENFORCED BY ANY STATE OR FEDERAL COURT HAVING JURISDICTION THEREOF. SHF
and Client submit to the jurisdiction of the state and Federal courts located in
Santa Clara County, California.

     11.5 COUNTERPARTS. This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original and all of which shall
constitute one instrument. Facsimile or other electronic transmission of a
signature page shall be valid and binding for all pruposes.

     11.6 INTEGRATION. This Agreement and the documents executed in connection
herewith constitute the entire agreement of the parties, and supercedes any
prior discussions or agreements, oral or written. This Agreement

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may not be amended except by written instrument signed by both parties. No
waiver shall be effective unless in writing and signed by SHF. Any waiver on one
occasion is not a waiver on any subsequent occasion

     11.7 ASSIGNMENT. Client may not assign any interests or rights, or delegate
any duties, hereunder. SHF may grant participations in, assign its rights, and
grant one or more security interests, in its rights hereunder.

     11.8 GENERAL AUTHORIZATION. Client hereby authorizes SHF to use Client's
name, logo, and information relating to this financing relationship in its
marketing and advertising campaigns which is intended for SHF's customers,
prospects and shareholders.

     IN WITNESS WHEREOF, Client and SHF have executed this Agreement on the day
and year written above.

"SHF"                                "CLIENT"

SAND HILL FINANCE, LLC               THINKENGINE NETWORKS, INC.

By: /s/ Mark Cameron                 By: /s/Michael G. Mitchell
    -----------------------------        ----------------------

Title: President                     Title: President & Chief Executive Officer
       --------------------------           -----------------------------------

                                     ADDRESS OF CLIENT, CHIEF EXECUTIVE OFFICE
                                     AND LOCATION OF COLLATERAL
20573 Stevens Creek Blvd, Ste 200
Cupertino, CA  95014
Telephone No:  (408) 447-8530        Street: 100 Nickerson Road
                                             ------------------
Facsimile No:  (408) 447-8535
                                     City: Marlborough
OTHER LOCATIONS OF COLLATERAL, IF
ANY, IN ADDITION TO ABOVE:           State: MA
                                            --
3 CORPORATE DRIVE
DANBURY, CT  06810                   Zip Code: 01752
---------------------------------              -----

                                     Telephone No.: (508) 624-7600
---------------------------------

                                     Facsimile No.: (508) 624-0289
---------------------------------                         --------

                                     Email Address: jsteinkrauss@thinkengine.com
---------------------------------                   ----------------------------

                                        7EXHIBIT 10.2
                                                                    ------------

Void after September 28, 2012                                    Warrant No. W-2

     THIS SECURITY AND ANY SHARES ISSUED UPON THE EXERCISE OR CONVERSION OF THIS
     SECURITY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
     AMENDED (THE "SECURITIES ACT"), AND, ACCORDINGLY, MAY NOT BE OFFERED OR
     SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE
     SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A
     TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES
     ACT AND IN COMPLIANCE WITH APPLICABLE STATE SECURITIES LAWS OR BLUE SKY
     LAWS.

                           THINKENGINE NETWORKS, INC.

                          COMMON STOCK PURCHASE WARRANT

         ThinkEngine Networks, Inc. (the "Company"), having its principal office
as of the date hereof at 100 Nickerson Road, Marlborough, Massachusetts 01752,
hereby certifies that, for value received, Sand Hill Finance, LLC or registered
assigns, is entitled, subject to the terms and conditions set forth below, to
purchase from the Company at any time on or from time to time after American
Stock Exchange approval of an additional listing application of the shares
underlying this warrant and before 5:00 P.M., New York City time, on September
28, 2012 (the "Expiration Date"), Twenty-One Thousand Two Hundred and
Seventy-Six (21,276) fully paid and non-assessable shares of Common Stock (as
defined below), at the initial Purchase Price per share (as defined below) of
$1.88. The number of such shares of Common Stock and the Purchase Price per
share are subject to adjustment as provided in Section 5.

                As used herein the following terms, unless the context otherwise
requires, have the following respective meanings:

                  "Aggregate Purchase Price" has the meaning set forth in
Section 3.1.

                  "AMEX" means the American Stock Exchange, Inc.

                  "Board of Directors" means the board of directors of the
Company.

                  "Business Day" means any day other than Saturday, Sunday or
other day on which commercial banks in The City of New York are authorized or
required by law to remain closed.

<PAGE>

                  "Company" includes the Company and any corporation which shall
succeed to or assume the obligations of the Company hereunder. The term
"corporation" shall include an association, joint stock company, business trust,
limited liability company or other similar organization.

                  "Common Stock" means the Company's Common Stock, $0.001 par
value per share, authorized as of the date hereof, and any stock of any class or
classes (however designated) hereafter authorized upon reclassification thereof,
which, if the Board of Directors declares any dividends or distributions, has
the right to participate in the distribution of earnings and assets of the
Company after the payment of dividends or other distributions on any shares of
capital stock of the Company entitled to a preference and in the voting for the
election of directors of the Company.

                  "Exchange Act" means the Securities Exchange Act of 1934 as
the same shall be in effect at the time.

                  "Holder" means any record owner of Warrants or Underlying
Securities.

                  "Market Price" means at any date (i) if the principal trading
market for such securities is AMEX or another exchange, the closing price per
share for the trading day, as officially reported on any consolidated tape, (ii)
if the principal market for such securities is the over-the-counter market, the
closing sale price per share on the trading day in which a sale was reported as
set forth by Nasdaq or, (iii) if the security is not listed on another exchange
or Nasdaq, the closing sale price per share on the last trading day in which a
sale was reported as set forth in the National Quotation Bureau sheet listing
such securities for such day. Notwithstanding the foregoing, if there is no
reported price, as the case may be, reported on any of the ten trading days
preceding the event requiring a determination of Market Price hereunder, then
the Market Price shall be determined in good faith by resolution of the Board of
Directors.

                  "Nasdaq" means the Nasdaq Capital Market or Nasdaq Global
Market.

                  "Notice" has the meaning set forth in Section 21.

                  "Original Issue Date" means September 28, 2007.

                  "Other Securities" refers to any stock (other than Common
Stock) and other securities of the Company or any other Person (corporate or
otherwise) which the Holders of the Warrants at any time shall be entitled to
receive, or shall have received, upon the exercise of the Warrants, in lieu of
or in addition to Common Stock, or which at any time shall be issuable or shall
have been issued in exchange for or in replacement of Common Stock or Other
Securities pursuant to Section 5 or 6.

                  "Person" means any individual, sole proprietorship,
partnership, corporation, limited liability company, business trust,
unincorporated association, joint stock corporation, trust, joint venture or
other entity, any university or similar institution, or any government or any
agency or instrumentality or political subdivision thereof.

                                        2
<PAGE>

                  "Purchase Price per share" means $1.88 per share, as may be
adjusted from time to time in accordance with Section 5 or 6.

                  "registered" and "registration" refer to a registration
effected by filing a registration statement in compliance with the Securities
Act, to permit the disposition of Underlying Securities issued or issuable upon
the exercise of Warrants, and any post-effective amendments and supplements
filed or required to be filed to permit any such disposition.

                  "Securities Act" means the Securities Act of 1933 as the same
shall be in effect at the time.

                  "Underlying Securities" means any Common Stock or Other
Securities issued or issuable upon exercise of Warrants.

                  "Warrant" means, as applicable, (i) the Warrant dated as of
the date hereof, evidencing rights to purchase up to an aggregate of 21,276
shares of Common Stock, and all Warrants issued upon transfer, division or
combination of, or in substitution for, any thereof (all Warrants shall at all
times be identical as to terms and conditions and date, except as to the number
of shares of Common Stock for which they may be exercised) or (ii) each right as
set forth in this Warrant to purchase one share of Common Stock, as adjusted
from time to time in accordance with Section 5 or 6.

                  1. Registration Rights. If at any time when there is not an
effective registration statement covering all of the Underlying Securities, the
Company shall determine to prepare and file with the Securities and Exchange
Commission a registration statement relating to an offering for its own account
or the account of others under the Securities Act of any of its equity
securities, other than on Form S-4 or Form S-8 (each as promulgated under the
Securities Act) or their then equivalents relating to equity securities to be
issued solely in connection with any acquisition of any entity or business or
equity securities issuable in connection with stock option or other employee
benefit plans, the Company shall send to each Holder of Underlying Securities
written notice of such determination and, if within seven (7) Business Days
after receipt of such notice, any such Holder shall so request in writing (which
request shall specify the Underlying Securities intended to be disposed of by
the Holder), the Company will cause the registration under the Securities Act of
all Underlying Securities which the Company has been so requested to register by
the Holder, to the extent required to permit the disposition of the Underlying
Securities so to be registered, provided that if at any time after giving
written notice of its intention to register any securities and prior to the
effective date of the registration statement filed in connection with such
registration, the Company shall determine for any reason not to register or to
delay registration of such securities, the Company may, at its election, give
written notice of such determination to such Holder and, thereupon, (i) in the
case of a determination not to register, shall be relieved of its obligation to
register any Underlying Securities in connection with such registration, and
(ii) in the case of a determination to delay registering, shall be permitted to
delay registering any Underlying Securities being registered pursuant to this
Section 1 for the same period as the delay in registering such other securities.
The Company shall include in such registration statement all or any part of such
Underlying

                                        3
<PAGE>

Securities such Holder requests to be registered. In the case of an underwritten
public offering, if the managing underwriter(s) or underwriter(s) should
reasonably object to the inclusion of the Underlying Securities in such
registration statement, then if the Company after consultation with the managing
underwriter should reasonably determine that the inclusion of such Underlying
Securities, would materially adversely affect the offering contemplated in such
registration statement, and based on such determination recommends inclusion in
such registration statement of fewer or none of the Underlying Securities of the
Holders, then (x) the number of Underlying Securities of the Holders included in
such registration statement shall be reduced pro-rata among such Holders (based
upon the number of Underlying Securities requested to be included in the
registration), if the Company after consultation with the underwriter(s)
recommends the inclusion of fewer Underlying Securities, or (y) none of the
Underlying Securities of the Holders shall be included in such registration
statement, if the Company after consultation with the underwriter(s) recommends
the inclusion of none of such Underlying Securities; provided, however, that if
securities are being offered for the account of other persons or entities as
well as the Company, such reduction shall not represent a greater fraction of
the number of Underlying Securities intended to be offered by the Holders than
the fraction of similar reductions imposed on such other persons or entities
(other than the Company).

                  2. Sale or Exercise Without Registration. If, at the time of
any exercise, transfer or surrender for exchange of a Warrant or of Underlying
Securities previously issued upon the exercise of Warrants, such Warrant or
Underlying Securities shall not be registered under the Securities Act, the
Company may require, as a condition of allowing such exercise, transfer or
exchange, that the Holder or transferee of such Warrant or Underlying
Securities, as the case may be, furnish to the Company an opinion of counsel,
reasonably satisfactory to the Company, to the effect that such exercise,
transfer or exchange may be made without registration under the Securities Act.

                  3. Exercise of Warrant.

                           3.1. Exercise in Full. Subject to the provisions
         hereof, this Warrant may be exercised in full by the Holder hereof by
         surrender of this Warrant, with the form of subscription at the end
         hereof duly executed by such Holder, to the Company at its the
         principal office of the Company set forth at the head of this Warrant
         (or such other location as the Company from time to time may advise the
         Holder in writing), accompanied by payment, (i) in cash or by certified
         or official bank check payable to the order of the Company, in the
         amount obtained (the "Aggregate Purchase Price") by multiplying (a) the
         number of shares of Common Stock then issuable upon exercise of this
         Warrant by (b) the Purchase Price per share on the date of such
         exercise or (ii) by the surrender and cancellation of a portion of
         shares of Common Stock then held by the Holder or issuable upon
         exercise of this Warrant, which shall be valued and credited toward the
         total Aggregate Purchase Price due the Company for the exercise of the
         Warrant based upon the Market Price of the Common Stock on the date of
         exercise.

                           3.2. Partial Exercise. Subject to the provisions
         hereof, this Warrant may be exercised in part by surrender of this
         Warrant in the manner and at the place provided in Section 3.1 except
         that the amount payable by the Holder upon any partial

                                        4
<PAGE>

         exercise shall be the amount obtained by multiplying (a) the number of
         shares of Common Stock designated by the Holder in the subscription at
         the end hereof by (b) the Purchase Price per share on the date of such
         exercise. Upon any such partial exercise, the Company at its expense
         shall forthwith issue and deliver to or upon the order of the Holder
         hereof a new Warrant or Warrants of like tenor, in the name of the
         Holder hereof or as such Holder (upon payment by such Holder of any
         applicable transfer taxes and subject to the provisions of Section 2)
         may request, calling in the aggregate on the face or faces thereof for
         the number of shares of Common Stock equal to the number of such
         shares issuable prior to such partial exercise of this Warrant minus
         the number of such shares designated by the Holder in the subscription
         at the end hereof.

                           3.3. Company to Reaffirm Obligations. The Company
         shall, at the time of any exercise of this Warrant, upon the request of
         the Holder hereof, acknowledge in writing its continuing obligation to
         afford to such Holder any rights (including, without limitation, any
         right to registration of the Underlying Securities, if any) to which
         such Holder shall continue to be entitled after such exercise in
         accordance with the provisions of this Warrant; provided, however, that
         if the Holder of this Warrant shall fail to make any such request, such
         failure shall not affect the continuing obligation of the Company to
         afford such Holder any such rights.

                           3.4. Certain Exercises. If an exercise of this
         Warrant is to be made in connection with a registered public offering
         or sale of the Company, such exercise may, at the election of the
         Holder, be conditioned on the consummation of the public offering or
         sale of the Company, in which case such exercise shall not be deemed
         effective until the consummation of such transaction.

                  4. Delivery of Stock Certificates on Exercise. As soon as
practicable after the exercise of this Warrant in full or in part, the Company
at its own expense (including the payment by it of any applicable issue taxes)
shall cause to be issued in the name of and delivered to the Holder hereof, or
as such Holder (upon payment by such Holder of any applicable transfer taxes and
subject to the provisions of Section 2) may direct, a certificate or
certificates for the number of fully paid and non-assessable shares of Common
Stock or other Securities to which such Holder shall be entitled upon such
exercise, plus, in lieu of any fractional share to which such Holder would
otherwise be entitled, cash equal to such fraction multiplied by the then
current Market Price of one full share.

                5. Adjustment for Dividends.

                         (a) In case at any time or from time to time after the
Original Issue Date, the Company shall at any time declare or pay a dividend
upon its Common Stock payable in shares of Common Stock, the Purchase Price per
share in effect immediately prior to such dividend shall be proportionately
reduced.

                         (b) If the number of shares of Common Stock outstanding
at any time after the Original Issue Date is decreased by a combination or
reverse stock split of the outstanding shares of Common Stock, the Purchase
Price per share shall be increased in

                                        5
<PAGE>

proportion to such decrease. If the number of shares of Common Stock outstanding
at any time after the Original Issue Date is increased by a forward stock split
of the outstanding shares of Common Stock or otherwise, the Purchase Price per
share shall be decreased in proportion to such increase.

                         (c) Upon each adjustment to the Purchase Price per
share, the Holder of this Warrant shall thereafter be entitled to purchase, at
the Purchase Price per share resulting from such adjustment, the number of
shares of Common Stock obtained by multiplying the Purchase Price per share in
effect immediately prior to such adjustment by the number of shares of Common
Stock purchasable pursuant hereto immediately prior to such adjustment, and
dividing the product thereof by the Purchase Price per share resulting from such
adjustment.

                  6. Reorganization, Consolidation, Merger, etc. In case the
Company after the Original Issue Date shall (a) effect a reorganization, (b)
consolidate with or merge into any other Person, or (c) transfer all or
substantially all of its properties or assets to any other Person under any plan
or arrangement contemplating the dissolution of the Company, then, in each such
case, the Holder of this Warrant, upon the exercise hereof as provided in
Section 3 at any time after the consummation of such reorganization,
consolidation or merger or the effective date of such dissolution, as the case
may be, shall be entitled to receive (and the Company or its successors or
assigns shall be entitled to deliver), in lieu of the Underlying Securities
issuable upon such exercise prior to such consummation or such effective date,
the stock and other securities and property (including cash) to which such
Holder would have been entitled upon such consummation or in connection with
such dissolution, as the case may be, if such Holder had so exercised this
Warrant immediately prior thereto. Upon receipt of such stock and other
securities and property (including cash), if any, the rights of the Holder under
this Warrant shall terminate and cease and this Warrant shall expire and be of
no force and effect. In any such case, the Company (or its successors or
assigns) shall be entitled to make appropriate adjustments in the application of
the provisions of this Warrant with respect to the rights and interests of the
Holder after such reorganization, merger, consolidation or dissolution.

                  7. Further Assurances; Reports. The Company shall take all
such action as may be necessary or appropriate in order that the Company may
validly and legally issue fully paid and non-assessable shares of Underlying
Securities upon the exercise of all Warrants from time to time outstanding. For
so long as the Holder holds this Warrant, the Company shall deliver to the
Holder contemporaneously with delivery to the holders of Common Stock, a copy of
each report of the Company delivered to such holders.

                  8. Certificate as to Adjustments. In each case of any
adjustment or readjustment in the Underlying Securities, the Company shall, upon
request, at its expense, promptly cause its Chief Financial Officer to compute
such adjustment or readjustment in accordance with the terms of this Warrant and
prepare a certificate setting forth such adjustment or readjustment and showing
in detail the facts upon which such adjustment or readjustment is based, and the
number of shares of Common Stock or Other Securities outstanding or deemed to be
outstanding. The Company shall forthwith mail a copy of each such certificate to
the Holder.

                                        6
<PAGE>

                  9. Notices of Record Date. In the event of

                           (a) any taking by the Company of a record of its
                stockholders for the purpose of determining the stockholders
                thereof who are entitled to receive any dividend or other
                distribution (other than a quarterly dividend payable solely in
                cash), or any right to subscribe for, purchase or otherwise
                acquire any shares of stock of any class or any other securities
                or property, or to receive any other right, or for the purpose
                of determining stockholders who are entitled to vote in
                connection with any proposed capital reorganization of the
                Company, any reclassification or recapitalization of the capital
                stock of the Company or any transfer of all or substantially all
                the assets of the Company to or consolidation or merger of the
                Company with or into any other Person, or

                           (b) any voluntary or involuntary dissolution,
                liquidation or winding-up of the Company,

then and in each such event the Company shall mail or cause to be mailed to each
Holder of a Warrant a notice specifying (i) the date on which any such record is
to be taken for the purpose of such dividend, distribution or right, and stating
the amount and character of such dividend, distribution or right and (ii) the
date on which any such reorganization, reclassification, recapitalization,
transfer, consolidation, merger, dissolution, liquidation or winding-up is to
take place, and the time, if any, as of which the Holders of record of
Underlying Securities shall be entitled to exchange their shares of Underlying
Securities for securities or other property deliverable upon such
reorganization, reclassification, recapitalization, transfer, consolidation,
merger, dissolution, liquidation or winding-up. Such notice shall be mailed at
least 20 days prior to the date therein specified.

                  10. Reservation of Stock Issuable on Exercise of Warrants. The
Company shall at all times reserve and keep available, solely for issuance and
delivery upon the exercise of the Warrants, all shares of Common Stock (or Other
Securities) from time to time issuable upon the exercise of the Warrants.

                  11. Listing on Securities Exchanges; Registration; Issuance of
Certain Securities. In furtherance and not in limitation of any other provision
of this Warrant, if the Company at any time shall list any Common Stock (or
Other Securities) on any national securities exchange or Nasdaq, the Company
shall, at its expense, simultaneously list the Underlying Securities from time
to time issuable upon the exercise of the Warrants on such exchange or Nasdaq,
upon official notice of issuance.

                  12. Exchange of Warrants. Subject to the provisions of Section
2, upon surrender for exchange of this Warrant, properly endorsed, to the
Company, as soon as practicable the Company at its own expense shall issue and
deliver to or upon the order of the Holder thereof a new Warrant or Warrants of
like tenor, in the name of such Holder or as such Holder (upon payment by such
Holder of any applicable transfer taxes) may direct, calling in the aggregate on
the face or faces thereof for the number of shares of Common Stock called for on
the face of this Warrant so surrendered.

                                        7
<PAGE>

                  13. Replacement of Warrants. Upon receipt of evidence
reasonably satisfactory to the Company of the loss, theft, destruction or
mutilation of this Warrant and, in the case of any such loss, theft or
destruction, upon delivery of an indemnity agreement reasonably satisfactory in
form and amount to the Company or, in the case of any such mutilation, upon
surrender and cancellation of this Warrant, the Company at its expense shall
execute and deliver, in lieu thereof, a new Warrant of like tenor.

                  14. Warrant Agent. The Company may, by written notice to each
Holder of a Warrant, appoint an agent having an office in New York, New York,
for the purpose of issuing Common Stock (or Other Securities) upon the exercise
of the Warrants pursuant to Section 3, exchanging Warrants pursuant to Section
12, and replacing Warrants pursuant to Section 13, or any of the foregoing, and
thereafter any such issuance, exchange or replacement, as the case may be, shall
be made at such office by such agent.

                  15. Remedies. The Company stipulates that the remedies at law
of the Holder of this Warrant in the event of any default or threatened default
by the Company in the performance of or compliance with any of the terms of this
Warrant may not be adequate, and that such terms may be specifically enforced by
a decree for the specific performance of any agreement contained herein or by an
injunction that may be sought against a violation of any of the terms hereof or
otherwise.

                  16. No Rights as Stockholder. This Warrant does not entitle
the Holder hereof to any voting rights or other rights as a stockholder of the
Company prior to the exercise hereof.

                  17. Negotiability. Subject to Section 2, this Warrant is
issued upon the following terms, to all of which each Holder or owner hereof by
the taking hereof consents and agrees that:

                           (a) subject to the provisions of this Warrant, title
                  to this Warrant may be transferred by endorsement (by the
                  Holder hereof executing the form of assignment at the end
                  hereof); and

                           (b) until this Warrant is transferred on the books of
                  the Company, the Company may treat the registered Holder
                  hereof as the absolute owner hereof for all purposes,
                  notwithstanding any notice to the contrary.

                  18. Entire Agreement; Successors and Assigns. This Warrant
constitutes the entire contract between the parties relative to the subject
matter hereof. This Warrant supersedes any previous agreement among the parties
with respect to the subject matter hereof. The terms and conditions of this
Warrant shall inure to the benefit of and be binding upon the respective
permitted executors, administrators, heirs, successors and assigns of the
parties. Nothing in this Warrant, expressed or implied, is intended to confer
upon any party, other than the Holder and the Company, any rights, remedies,
obligations or liabilities under or by reason of this Warrant.

                                        8
<PAGE>

                  19. Governing Law. This Warrant shall be governed by and
construed in accordance with the laws of the State of Delaware without regard to
principles of conflicts of law.

                  20. Headings. The headings of the sections of this Warrant are
for convenience and shall not by themselves determine the interpretation of this
Warrant.

                  21. Notices. Any notice or other communication required or
permitted to be given hereunder (each a "Notice") shall be given in writing and
shall be made by personal delivery or sent by courier or certified or registered
first-class mail (postage pre-paid), addressed to a party at its address shown
below or at such other address as such party may designate by three days'
advance Notice to the other party.

                  Any Notice to the Holder shall be sent to the address for such
Holder set forth on books and records of the Company.

                  Any Notice to the Company shall be sent to:

                       ThinkEngine Networks, Inc.
                       100 Nickerson Road
                       Marlborough, MA 01752
                       Attention:  Chief Financial Officer

                  Each Notice shall be deemed given and effective upon receipt
(or refusal of receipt).

                  22. Severability. Whenever possible, each provision of this
Warrant shall be interpreted in such a manner as to be effective and valid under
applicable law, but if any provision of this Warrant shall be deemed prohibited
or invalid under such applicable law, such provision shall be ineffective to the
extent of such prohibition or invalidity, and such prohibition or invalidity
shall not invalidate the remainder of such provision or any other provision of
this Warrant.

                  23. Amendments and Waivers. Any provision of this Warrant may
be amended and the observance of any provision of this Warrant may be waived
(either generally or in a particular instance and either retroactively or
prospectively), only with the written consent of the Company and the Holder of
the Warrant.

                  24. Construction. Words (including capitalized terms defined
herein) in the singular shall be held to include the plural and vice versa as
the context requires. The words "herein", "hereinafter", "hereunder" and words
of similar import used in this Warrant shall, unless otherwise stated, refer to
this Warrant as a whole and not to any particular provision of this Warrant. All
references to "$" in this Warrant and the other agreements contemplated hereby
shall refer to United States dollars (unless otherwise specified expressly). Any
reference to any gender includes the other genders.

                                        9
<PAGE>

                  25. Assignability. Subject to Section 2, this Warrant is fully
assignable at any time.

                            [signature page follows]

                                       10
<PAGE>

         IN WITNESS WHEREOF, the undersigned has executed this Warrant as of the
date set forth below.

Dated: September 28, 2007

                                       THINKENGINE NETWORKS, INC.

                                       By: /s/ Michael G. Mitchell
                                           ------------------------------
                                           Name: Michael G. Mitchell
                                           Title: President and CEO

Attest: /s/ John E. Steinkrauss
        ---------------------------

                                       11
<PAGE>

                              FORM OF SUBSCRIPTION
                  (To be signed only upon exercise of Warrant)

To:  THINKENGINE NETWORKS, INC.

               [The undersigned, the Holder of the within Warrant, hereby
irrevocably elects to exercise the purchase right represented by such Warrant
for, and to purchase thereunder, * shares of Common Stock of ThinkEngine
Networks, Inc., and herewith makes payment of $__________ and requests that the
certificates for such shares be issued in the name of, and delivered to,
___________________, whose address is _______________________.]

               [The undersigned hereby elects to convert the attached Warrant
into Common Stock of ThinkEngine Networks, Inc. through "cashless exercise" in
the manner specified in the Warrant. This conversion is exercised with respect
to _____________________ of the shares of Common Stock covered by the Warrant as
set forth in calculations attached hereto.].

               The undersigned represents that the undersigned is acquiring such
securities for its own account for investment and not with a view to or for sale
in connection with any distribution thereof (except for any resale pursuant to,
and in accordance with a valid registration statement effective under the
Securities Act of 1933). Dated:

                                      ------------------------------------------
                                      (Signature must conform in all respects to
                                      the name of the Holder as specified on the
                                      face of the Warrant)

                                      ------------------------------------------
                                      (Address)

*    Insert here the number of shares called for on the face of the Warrant (or,
     in the case of a partial exercise, the portion thereof as to which the
     Warrant is being exercised).

                                       12
<PAGE>

                               FORM OF ASSIGNMENT

           (To be signed by the Holder only upon transfer of Warrant)

               For value received, the undersigned hereby sells, assigns and
transfers unto _________________________ the right represented by the within
Warrant to purchase _________ shares of Common Stock of ThinkEngine Networks,
Inc. to which the within Warrant relates, and hereby does irrevocably constitute
and appoint ______________________________ Attorney to transfer such right on
the books of ThinkEngine Networks, Inc. with full power of substitution in the
premises.

Dated: _____________

                                      ------------------------------------------
                                      (Signature must conform in all respects to
                                      name of Holder as specified on the face of
                                      the Warrant)

                                      ------------------------------------------
                                      (Address)

Signature guaranteed by a bank or
trust company having its principal
office in New York City or by a
Member Firm of the New York Stock
Exchange or American Stock Exchange

                                       13

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