Document:

<PAGE>

                                                                   EXHIBIT 10.11

                       GUARANTY AND SURETYSHIP AGREEMENT

      THIS GUARANTY AND SURETYSHIP AGREEMENT (this "Guaranty"), dated as of the
31st day of March, 2004, made by U-HAUL INTERNATIONAL, INC., a Nevada
corporation ("Guarantor"), to UH STORAGE (DE) LIMITED PARTNERSHIP, a Delaware
limited partnership ("Landlord").

                                   W I T N E S S E T H:

      WHEREAS, Landlord, as lessor, has entered into a Lease Agreement of even
date herewith (the "Lease"), in which Landlord leased to U-Haul Moving Partners,
Inc., a Nevada limited partnership ("Tenant"), certain premises listed on
Schedule A attached hereto (collectively, the "Leased Premises");

      WHEREAS, all of the issued and outstanding partnership interests of Tenant
are owned by Guarantor; and

      WHEREAS, the execution and delivery by Guarantor of this Guaranty is a
material inducement to Landlord to execute the Lease, and Guarantor expects to
derive financial benefit from the Lease.

      NOW, THEREFORE, in consideration of the premises and other good and
valuable consideration, the receipt of which is hereby acknowledged by
Guarantor, and intending to be legally bound, Guarantor hereby covenants and
agrees as follows:

                                   ARTICLE I.
                                   GUARANTEE

      1.01. Guaranteed Obligations. Guarantor hereby absolutely
unconditionally and irrevocably guarantees to and becomes surety for Landlord
and its successors and assigns for the due, punctual and full payment,
performance and observance of, and covenants with Landlord to duly, punctually
and fully pay and perform, the following (collectively, the "Guaranteed
Obligations"):

      (a) the full and timely payment of all Rent and all other amounts due or
to become due to Landlord from Tenant under the Lease or any other agreement or
instrument executed in connection therewith, including without limitation the
Seller/Lessee's Certificate of even date therewith in favor of Landlord, whether
now existing or hereafter arising, contracted or incurred (collectively, the
"Monetary Obligations"); and

      (b) all covenants, agreements, terms, obligations and conditions,
undertakings and duties contained in the Lease to be observed, performed by or
imposed upon Tenant under the Lease, whether now existing or hereafter arising,
contracted or incurred (collectively, the "Performance Obligations"),

as and when such payment, performance or observance shall become due (whether by
acceleration or otherwise) in accordance with the terms of the Lease, which
terms are incorporated herein by reference. The Guaranteed Obligations shall not
be affected by the Tenant's voluntary or involuntary bankruptcy, assignment for
the benefit of creditors reorganization or similar proceeding affecting the
Tenant. If for any reason any Monetary Obligation shall not be paid promptly
when due, Guarantor shall, immediately upon demand, pay

<PAGE>

the same to Landlord when due under the terms of the Lease. If for any reason
Tenant shall fail to perform or observe any Performance Obligation, Guarantor
shall, immediately upon demand, perform and observe the same or cause the same
to be performed or observed. If, by reason of any bankruptcy, insolvency or
similar laws affecting the rights of creditors, Landlord shall be prohibited
from exercising any of Landlord's rights and remedies, including, but not
limited to, enforcement of the terrns of the Lease against the Tenant, then as
to Guarantor such prohibition shall be of no force and effect, and Landlord
shall have the right to make demand upon, and receive payment and/or performance
from Guarantor of all Guaranteed obligations and Guarantor's obligation in this
respect shall be primary and not secondary. Guarantor shall pay all Monetary
Obligations to Landlord at the address and in the manner set forth in the Lease
or at such other address as Landlord shall notify Guarantor in writing.

      1.02. Guarantee Unconditional. The obligations of Guarantor hereunder are
continuing, absolute and unconditional, irrespective of any circumstance
whatsoever which might otherwise constitute a legal or equitable discharge or
defense of a guarantor or surety. Without limiting the generality of the
foregoing, the obligations of Guarantor hereunder shall remain in full force and
effect without regard to, and shall not be released, discharged, abated,
impaired or in any way affected by:

      (a) any amendment, modification, extension, renewal or supplement to the
Lease or any termination of the Lease or any interest therein;

      (b) any assumption by any party of Tenant's or any other party's
obligations under, or Tenant's or any other party's assignment of any of its
interest in, the Lease;

      (c) any exercise or nonexercise of or delay in exercising any right,
remedy, power or privilege under or in respect of this Guaranty or the Lease or
pursuant to applicable law (even if any such right, remedy, power or privilege
shall be lost thereby), including, without limitation, any so-called self-help
remedies, or any waiver, consent, compromise, settlement, indulgence or other
action or inaction in respect thereof;

      (d) any change in the financial condition of Tenant, the voluntary or
involuntary liquidation, dissolution, sale of all or substantially all of the
assets, marshalling of assets and liabilities, receivership, conservatorship,
insolvency, bankruptcy, assignment for the benefit of creditors, reorganization,
arrangement, composition or readjustment of, or other similar proceeding
affecting Landlord, Tenant or Guarantor or any of their assets or any
impairment, modification, release or limitation of liability of Landlord, Tenant
or Guarantor or their respective estates in bankruptcy or of any remedy for the
enforcement of such liability resulting from the operation of any present or
future provision of the United States Bankruptcy Code or other similar statute
or from the decision of any court;

      (e) any extension of time for payment or performance of the Guaranteed
Obligations or any part thereof;

      (f) the genuineness, invalidity or unenforceability of all or any portion
or provision of the Lease;

      (g) any defense that may arise by reason of the failure of Landlord to
file or enforce a claim against the estate of Tenant in any bankruptcy or other
proceeding;

      (h) the release or discharge of or accord and satisfaction with of Tenant
or any other person or entity from performance or observance of any of the
agreements, covenants, terms or conditions contained in the Lease by operation
of law or otherwise;

                                      -2-
<PAGE>

      (i) the failure of Landlord to keep Guarantor advised of Tenant's
financial condition, regardless of the existence of any duty to do so;

      (j) any assignment by Landlord of all of Landlord's right, title and
interest in, to and under the Lease and/or this Guaranty as collateral security
for any Loan;

      (k) any present or future law or order of any government (de jure or de
facto) or of any agency thereof purporting to reduce, amend or otherwise affect
the Guaranteed Obligations or any or all of the obligations, covenants or
agreements of Tenant under the Lease (except by payment in full of all
Guaranteed Obligations) or Guarantor under this Guaranty (except by payment in
full of all Guaranteed Obligations);

      (l) the default or failure of Guarantor fully to perform any of its
obligations set forth in this Guaranty;

      (m) any actual, purported or attempted sale, assignment or other transfer
by Landlord of the Lease or the Leased Premises or any part thereof or of any of
its rights, interests or obligations thereunder;

      (n) any merger or consolidation of Tenant into or with any other entity,
or any sale, lease, transfer or other disposition of any or all of Tenant's
assets or any sale, transfer or other disposition of any or all of the shares of
capital stock or other securities of Tenant or any affiliate of Tenant to any
other person or entity;

      (o) Tenant's failure to obtain, protect, preserve or enforce any rights in
or to the Lease or the Leased Premises or any interest therein against any party
or the invalidity or unenforceability of any such rights; or

      (p) any other event, action, omission or circumstances which might in any
manner or to any extent impose any risk to Guarantor or which might otherwise
constitute a legal or equitable release or discharge of a guarantor or surety.

all of which may be given or done without notice to, or consent of, Guarantor.

No setoff, claim, reduction or diminution of any obligation, or any defense of
any kind or nature which Tenant or Guarantor now has or hereafter may have
against Landlord shall be available hereunder to Guarantor against Landlord.

      1.03. Disaffirmance of Lease. Guarantor agrees that, in the event of
rejection or disaffirmance of the Lease by Tenant or Tenant's trustee in
bankruptcy pursuant to the United States Bankruptcy Code or any other law,
Guarantor will, if Landlord so requests, assume all obligations and liabilities
under the express terms of the Lease, to the same extent as if Guarantor had
been originally named instead of Tenant as a party to the Lease and there had
been no rejection or disaffirmance; and Guarantor will confirm such assumption
in writing at the request of Landlord on or after such rejection or
disaffirmance. Guarantor, upon such assumption, shall have all rights of Tenant
under the Lease (to the extent permitted by law).

      1.04. No Notice or Duty to Exhaust Remedies. Guarantor hereby waives
notice of any default in the payment or non-performance of any of the Guaranteed
Obligations (except as expressly required hereunder), diligence, presentment,
demand, protest and all notices of any kind. Guarantor agrees that liability
under this Guaranty shall be primary and hereby waives any requirement that
Landlord exhaust any right or remedy, or proceed first or at any time, against
Tenant or any other guarantor of, or any security for, any of the Guaranteed
Obligations.

                                      -3-
<PAGE>

Guarantor hereby waives notice of any acceptance of this Guaranty and all
matters and rights which may be raised in avoidance of, or in defense against,
any action to enforce the obligations of Guarantor hereunder. Guarantor hereby
waives any and all suretyship defenses or defenses in the nature thereof without
in any manner limiting any other provision of this Guaranty. This Guaranty
constitutes an agreement of suretyship as well as of guaranty, and Landlord may
pursue its rights and remedies under this Guaranty and under the Lease in
whatever order, or collectively, and shall be entitled to payment and
performance hereunder notwithstanding any action taken by Landlord or inaction
by Landlord to enforce any of its rights or remedies against any other
guarantor, person, entity or property whatsoever. This Guaranty is a guaranty of
payment and performance and not merely of collection.

      Landlord may pursue its rights and remedies under this Guaranty
notwithstanding any other guarantor of or security for the Guaranteed
Obligations or any part thereof. Guarantor authorizes Landlord, at its sole
option, without notice or demand and without affecting the liability of
Guarantor under this Guaranty, to terminate the Lease, either in whole or in
part, in accordance with its terms.

      Each default on any of the Guaranteed Obligations shall give rise to a
separate cause of action and separate suits may be brought hereunder as each
cause of action arises or, at the option of Landlord any and all causes of
action which arise prior to or after any suit is commenced hereunder may be
included in such suit.

      1.05. Subrogation. The Guarantor will not exercise any rights which it may
acquire by way of subrogation, indemnification or contribution, by reason of any
payment made by it hereunder or otherwise, until after the date on which all of
the Guaranteed Obligations shall have been satisfied and performed in full and,
until such time, any such rights against the Tenant shall be fully subordinate
in lien and payment to any claim which the Landlord now or hereafter has against
the Tenant. If any amount shall be paid to the Guarantor on account of such
subrogation, indemnification or contribution at any time when all of the
Guaranteed Obligations and all other expenses guaranteed pursuant hereto shall
not have been paid and performed in full, such amount shall be held in trust for
the benefit of the Landlord, shall be segregated from the other funds of the
Guarantor and shall forthwith be paid over to the Landlord to be applied in
whole or in part by the Landlord against the Guaranteed Obligations, whether
matured or unmatured, in accordance with the terms of the Lease. Guarantor
waives all rights and defenses arising out of an election of remedies by the
Landlord, even though that election of remedies has destroyed the Guarantor's
rights of subrogation and reimbursement against the Tenant by the operation of
Section 580d of the California Code of Civil Procedure or otherwise.

                                  ARTICLE 11.
                   REPRESENTATIONS, WARRANTIES AND COVENANTS

      2.01. Representations and Warranties. The representations and warranties
made by Guarantor in that certain Guarantor's Certificate of even date herewith
made by Guarantor in favor of Landlord are hereby incorporated by reference
herein (with all related definitions). Guarantor hereby represents and warrants
to Landlord as provided therein.

      2.02. Financial Statements; Books and Records.

      (a) Guarantor shall keep adequate records and books of account with
respect to the finances and business of Guarantor generally and with respect to
the Leased Premises, in accordance with generally accepted accounting principles
("GAAP") consistently applied, and

                                      -4-
<PAGE>

shall permit Landlord and Lender by their respective agents, accountants and
attorneys, upon reasonable notice to Guarantor, to examine (and make copies of)
the records and books of account and to discuss the finances and business with
the officers of Guarantor, at such reasonable times as may be requested by
Landlord or Lender. Upon the request of Lender or Landlord (either
telephonically or in writing), Guarantor shall provide the requesting party with
copies of any information to which such party would be entitled in the course of
a personal visit.

      (b) If at any time during the Term, Guarantor ceases to be a publicly
traded company and/or its financial reports and statements (e.g. 10-K and 10-Q
reports) are no longer available to Landlord via Edgar or other online reporting
sources without material cost to Landlord, then Guarantor shall deliver to
Landlord and to Lender (i) within one hundred twenty (120) days of the close of
each fiscal year, annual audited financial statements of Guarantor prepared by
nationally recognized independent certified public accountants and (ii) within
seventy-five (75) days after the end of each of the three remaining fiscal
quarters unaudited financial statements and all other quarterly reports of
Guarantor, certified by Guarantor's chief financial officer, and all filings, if
any, of Form 10-K, Form 10-Q and other required filings with the Securities and
Exchange Commission pursuant to the provisions of the Securities Exchange Act of
1934, as amended, or any other Law. All financial statements of Guarantor shall
be prepared in accordance with GAAP consistently applied. All annual financial
statements shall be accompanied (i) by an opinion of said accountants stating
that (A) there are no qualifications as to the scope of the audit and (B) the
audit was performed in accordance with GAAP and (ii) by the affidavit of the
president or a vice president of Guarantor, dated within five (5) days of the
delivery of such statement, stating that (C) the affiant knows of no Event of
Default, or event which, upon notice or the passage of time or both, would
become an Event of Default which has occurred and is continuing hereunder or, if
any such event has occurred and is continuing, specifying the nature and period
of existence thereof and what action Guarantor has taken or proposes to take
with respect thereto and (D) except as otherwise specified in such affidavit,
that Guarantor has fulfilled all of its obligations under this Guaranty which
are required to be fulfilled on or prior to the date of such affidavit.

      2.03. Notice of Certain Events. Promptly upon becoming aware thereof,
Guarantor shall give Landlord notice of (i) the commencement, existence or
threat of any proceeding by or before any duly constituted governmental
authority or agency against or affecting Guarantor which, if adversely decided,
would have a material adverse effect on the business, operations or condition,
financial or otherwise, of Guarantor or on its ability to perform its
obligations hereunder or (ii) any material adverse change in the business,
operations or condition, financial or otherwise, of Guarantor.

      2.04. Estoppel Certificates. Guarantor shall, at any time upon not less
than ten (10) days' prior written request by Landlord or Lender, deliver to the
party requesting the same a statement in writing, executed by the president or a
vice president of Guarantor, certifying (i) that, except as otherwise specified,
this Guaranty is unmodified and in full force in effect, (ii) that, except as
otherwise specified, Guarantor is not in default hereunder and that no event has
occurred or condition exists which with the giving of notice or the passage of
time or both would constitute a default hereunder, (iii) that, except as
otherwise specified, Guarantor has no defense, setoff or counterclaim against
Landlord arising out of or in any way related to this Guaranty, (iv) that,
except as otherwise specified, there are not proceedings pending or, to the
knowledge of Guarantor, threatened against Guarantor before any court, arbiter
or administrative agency which, if adversely decided, could have a material
adverse effect on the business, operations or conditions, financial or
otherwise, of Guarantor or on its ability to perform its obligations hereunder
and (v) such other matters as Landlord or Lender may reasonably request.

                                      -5-
<PAGE>

                                  ARTICLE III.
                               EVENTS OF DEFAULT

      3.01. Events of Default. The occurrence of any one or more of the
following events shall constitute an "Event of Default" under this Guaranty upon
written notice from Landlord declaring such Event of Default (provided, that
with respect to clauses (h), (i), (j) and (k) below, no notice shall be
required):

      (a) a failure by Guarantor to make any payment of any Monetary Obligation,
regardless of the reason for such failure;

      (b) a failure by Guarantor duly to perform and observe, or a violation or
breach of, any other provision hereof not otherwise specifically mentioned in
this Section 3.01;

      (c) any representation or warranty made by Guarantor herein or in any
certificate, demand or request made pursuant hereto proves to be untrue or
incorrect, as of the date made, in any material respect;

      (d) a default beyond any applicable cure period by Guarantor in any
payment of principal or interest on any obligations for borrowed money having an
original principal balance of $10,000,000 or more in the aggregate, or in the
performance of any other provision contained in any instrument under which any
such obligation is created or secured (including the breach of any covenant
thereunder), (i) if such payment is a payment at maturity or a final payment, or
(ii) if an effect of such default is to cause, or permit any person to cause,
such obligation to become due prior to its stated maturity;

      (e) a default by Guarantor beyond any applicable cure period in the
payment of rent under, or in the performance of any other material provision of,
any leases (excluding the Lease) with rental obligations over the terms thereof
of $10,000,000 or more in the aggregate;

      (f) a final, non-appealable judgment or judgments for the payment of money
in excess of $10,000,000 in the aggregate shall be rendered against Guarantor
and the same shall remain undischarged for a period of sixty (60) consecutive
days;

      (g) Intentionally Omitted;

      (h) Guarantor shall (A) voluntarily be adjudicated a bankrupt or
insolvent, (B) seek or consent to the appointment of a receiver for itself or
its assets, (C) file a petition seeking relief under the bankruptcy or other
similar laws of the United States, any state or any jurisdiction, (D) make a
general assignment for the benefit of creditors, or (E) shall declare in writing
its inability to pay its debts as they mature;

      (i) a court shall enter an order, judgment or decree appointing, without
the consent of Guarantor, a receiver or trustee for it or approving a petition
filed against Guarantor which seeks relief under the bankruptcy or other similar
laws of the United States, any state or any jurisdiction, and such order,
judgment or decree shall remain undischarged or unstayed ninety (90) days after
it is entered;

      (j) Guarantor shall be liquidated or dissolved or shall begin proceedings
towards its liquidation or dissolution; or

                                      -6-
<PAGE>

      (k) Guarantor shall sell or transfer or enter into an agreement to sell or
transfer all or substantially all of its assets.

                                   ARTICLE IV.
                                  MISCELLANEOUS

      4.01. Effect Of Bankruptcy Proceedings. This Guaranty shall continue to be
effective, or be automatically reinstated, as the case may be, if at any time
payment, in whole or in part, of any of the Guaranteed Obligations is rescinded
or must otherwise be restored or returned by Landlord as a preference,
fraudulent conveyance or otherwise under any bankruptcy, insolvency or similar
law, all as though such payment had not been made. Guarantor hereby agrees to
indemnify Landlord against, and to save and hold Landlord harmless from any
required return by Landlord, or recovery from Landlord, of any such payment
because of its being deemed preferential under applicable bankruptcy,
receivership or insolvency laws, or for any other reason. If an Event of Default
at any time shall have occurred and be continuing or exist and declaration of
default or acceleration under or with respect to the Lease shall at such time be
prevented by reason of the pendency against Tenant of a case or proceeding under
any bankruptcy or insolvency law, Guarantor agrees that, for purposes of this
Guaranty and its obligations hereunder, the Lease shall be deemed to have been
declared in default or accelerated with the same effect as if the Lease had been
declared in default and accelerated in accordance with the terms thereof, and
Guarantor shall forthwith pay and perform the Guaranteed Obligations in full
without further notice or demand.

      4.02. Further Assurances. From time to time upon the request of Landlord,
Guarantor shall promptly and duly execute, acknowledge and deliver any and all
such further instruments and documents as Landlord may deem necessary or
desirable to confirm this Guaranty, to carry out the purpose and intent hereof
or to enable Landlord to enforce any of its rights hereunder.

      4.03. Amendments, Waivers, Etc. This Guaranty cannot be amended, modified,
waived, changed, discharged or terminated except by an instrument in writing
signed by the party against whom enforcement of such amendment, modification,
waiver, change, discharge or termination is sought.

      4.04. No Implied Waiver; Cumulative Remedies. No course of dealing and no
delay or failure of Landlord in exercising any right, power or privilege under
this Guaranty or the Lease shall affect any other or future exercise thereof or
exercise of any other right, power or privilege; nor shall any single or partial
exercise of any such right, power or privilege or any abandonment or
discontinuance of steps to enforce such a right, power or privilege preclude any
further exercise thereof or of any other right, power or privilege. The rights
and remedies of Landlord under this Guaranty are cumulative and not exclusive of
any rights or remedies which Landlord would otherwise have under the Lease, at
law or in equity.

      4.05. Notices. All notices, requests, demands, directions and other
communications (collectively "notices") under the provisions of this Guaranty
shall be in writing (including telexed communication) unless otherwise expressly
permitted hereunder and shall be sent by first-class or first-class express
mail, or by telex with confirmation in writing mailed first-class, in all cases
with charges prepaid, and any such properly given notice shall be effective when
received. All notices shall be sent to the applicable party addressed, if to
Landlord, at the address set forth in the Lease, and, if to Guarantor, at U-Haul
International, Inc., 2727 North Central Avenue, Phoenix, Arizona 85004,
Attention: President and Assistant General Counsel, or in accordance with the
last unrevoked written direction from such party to the other party.

                                      -7-
<PAGE>

      4.06. Expenses. Guarantor agrees to pay or cause to be paid and to save
Landlord harmless against liability for the payment of all reasonable
out-of-pocket expenses, including fees and expenses of counsel for Landlord,
incurred by Landlord from time to time arising in connection with Landlord's
enforcement or preservation of rights under this Guaranty or the Lease,
including but not limited to such expenses as may be incurred by Landlord in
connection with any default by Guarantor of any of its obligations hereunder or
by Tenant of any of its obligations under the Lease.

      4.07. Survival. All obligations of Guarantor to make payments to or
indemnify Landlord shall survive the payment and performance in full of the
Guaranteed Obligations.

      4.08. Severability. If any term or provision of this Guaranty or the
application thereof to any person or circumstance shall to any extent be invalid
or unenforceable, the remainder of this Guaranty, or the application of such
term or provision to persons or circumstances other than those as to which it is
invalid or unenforceable, shall not be affected thereby, and each term and
provision of this Guaranty shall be valid and enforceable to the fullest extent
permitted by law.

      4.09. Counterparts. This Guaranty may be executed in any number of
counterparts and by the different parties 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.

            4.10. Governing Law. (a) This Guaranty was negotiated in New York,
and accepted by Landlord in the State of New York, which State the parties agree
has a substantial relationship to the parties and to the underlying transaction
embodied hereby, and in all respects, including, without limiting the generality
of the foregoing, matters of construction, validity and performance, this
Guaranty and the obligations arising hereunder shall be governed by, and
construed in accordance with, the laws of the State of New York applicable to
contract made and performed in such State and any applicable law of the United
States of America. To the fullest extent permitted by law, Guarantor hereby
unconditionally and irrevocably waives any claim to assert that the law of any
other jurisdiction governs this Guaranty, and the Guaranty shall be governed by
and construed in accordance with the laws of the State of New York pursuant to
Section 5-1401 of the New York General Obligations Law.

            (b) Any legal suit, action or proceeding against Guarantor or
Landlord arising out of or relating to this Guaranty shall be instituted in any
federal or state court in New York, New York, pursuant to Section 5-1402 of the
New York General Obligations Law, and Guarantor waives any objection which it
may now or hereafter have to the laying of venue of any such suit, action or
proceeding and hereby irrevocably submits to the jurisdiction of any such court
in any suit, action or proceeding. Guarantor does hereby designate and appoint
CT Corporation, 111 8th Avenue, New York, New York 10011, as its authorized
agent to accept and acknowledge on its behalf service of any and all process
which may be served in any such suit, action or proceeding in any federal or
state court in New York, New York, and agrees that service of process upon said
agent at said address (or at such other office in New York, New York as may be
designated by Guarantor from time to time in accordance with the terms hereof)
with a copy to : U-Haul International, Inc., 2727 North Central Avenue, Phoenix,
Arizona 85004, Attention: President and Assistant General Counsel, and written
notice of said service of Guarantor mailed or delivered to Guarantor in the
manner provided herein shall be deemed in every respect effective service of
process upon Guarantor, in any such suit, action or proceeding in the State of
New York. Guarantor (i) shall give prompt notice to the Landlord of any change
of address of its authorized agent hereunder, (ii) may at any time and from time
to time designate a substitute authorized agent with an office in New York, New
York (which office shall be

                                      -8-
<PAGE>

designated as the address for service of process), and (iii) shall promptly
designate such a substitute if its authorized agent ceases to have an office in
New York, New York or is dissolved without leaving a successor.

      4.11. Successors and Assigns. This Guaranty shall bind Guarantor and its
successors and assigns, and shall inure to the benefit of Landlord and its
successors and assigns.

      4.12. Incorporation of Recitals; Definitions. The recitals set forth on
page 1 of this Guaranty are hereby specifically incorporated into the operative
terms of this Guaranty as if fully set forth. Terms not otherwise specifically
defined herein shall have the meanings set forth in the Lease.

      4.13. Rights of Lender. Guarantor acknowledges that the rights of Landlord
under this Guaranty have been assigned to Lender and Lender shall have all of
the rights and benefits of Landlord hereunder.

      4.14. Release. Notwithstanding anything to the contrary contained
elsewhere in this Guaranty, but subject to the terms of this Section 4.14,
Guarantor shall be released from the payment and performance of any Guaranteed
Obligations that arise or accrue after the occurrence of a Lease Assumption
Event (as that term is defined in that Lease Agreement of even date herewith by
and between Landlord, as landlord, and Mercury Partners, LP, as tenant), except
for a Lease Assumption Event that occurs as a result of any Event of Default (as
defined in the Lease), in which event Guarantor shall continue to be fully
liable pursuant to this Guaranty for all Guaranteed Obligations whenever arising
and the release provisions of this Section 4.14 shall be of no force or effect;
provided that, if such Event of Default is an Event of Default under Paragraph
22(a)(xv) of the Lease that constitutes a Limited Remedy Default pursuant to
Paragraph 23(k) of the Lease, then the Guaranteed Obligations hereunder shall
not exceed Tenant's liability under said Paragraph 23(k) of the Lease; provided
further, that nothing herein shall be deemed or construed to extend the
obligations of Guarantor hereunder beyond the later of (i) the expiration of the
initial ten (10) year Term and (ii) the expiration of any Renewal Term that has
been exercised by the U-Move Partners, Inc., during the time it is Tenant under
the Lease.

                   REMAINDER OF PAGE LEFT INTENTIONALLY BLANK

                                      -9-
<PAGE>

            IN WITNESS WHEREOF, Guarantor has duly executed and delivered this
Guaranty as of the date first above written.

ATTEST:                                         U-HAUL INTERNATIONAL, INC.,
                                                a Nevada corporation

By: /s/ [ILLEGIBLE]                             By: /s/ Gary B. Harto
    ------------------------                        -----------------------

Title:                                          Title: Assist Treasuser
       _____________________

                      SIGNATURE PAGE OF GUARANTY OF LEASE
                              U-HAUL INTERNATIONAL

<PAGE>

            IN WITNESS WHEREOF, Guarantor has duly executed and delivered this
Guaranty as of the date first above written.

ATTEST:                                    U-HAUL INTERNATIONAL, INC.,

                                           a Nevada corporation

By: /s/ Jennifer M. Settle                 By: /s/ Gary V. Klinefelter
    ----------------------                     -----------------------------
Title: Agent                               Title: Gary V. Klinefelter, Secretary

                      SIGNATURE PAGE OF GUARANTY OF LEASE
                              U-HAUL INTERNATIONAL

<PAGE>

                                   SCHEDULE A

<TABLE>
<CAPTION>
 Related
Premises #                           Related Premises
----------                           ----------------
<S>                    <C>
1.                     U-HAUL CENTER GOVERNMENT ST.
                       2505 Government Boulevard, Mobile, AL

2.                     U-HAUL STORAGE OXFORD
                       523 Hamric Drive West, Oxford, AL

3.                     U-HAUL STORAGE FOUNTAIN HILLS
                       9264 Technology Drive, Fountain Hills, AZ

4.                     U-HAUL CENTER 87TH & BELL
                       8746 West Bell Road, Peoria, AZ

5.                     U-HAUL STORAGE S.40TH ST.
                       3425 South 40th Street, Phoenix, AZ

6.                     U-HAUL CENTER CAVE CREEK
                       20618 North Cave Creek Road, Phoenix West, AZ

7.                     U-HAUL CENTER ANTHEM RV
                       42102 N. Vision Way, Phoenix West, AZ

8.                     U-HAUL CENTER ANTHEM WAY
                       42301 N. 41st Drive, Anthem, AZ

9.                     U-HAUL CENTER I-17 & DEER VLY
                       21621 N. 26th Avenue, Phoenix West, AZ

10.                    U-HAUL CENTER PRESCOTT
                       2122 Highway 69, Prescott, AZ

11.                    BELL ROAD AT GRAND AVE MOVING CENTER
                       13440 West Bell Road, Surprise, AZ

12.                    U-HAUL CENTER BUCKLEY ROAD
                       16950 East Ohio Place, Aurora South, CO

13.                    U-HAUL CTR CHAMBERS & I-70
                       15250 East 40th Avenue, Denver North, CO
</TABLE>

                                 SCHEDULE A - 1

<PAGE>

<TABLE>
<CAPTION>
 Related
Premises #                          Related Premises
----------                          ----------------
<S>                    <C>
14.                    U-HAUL HIGHLANDS RANCH
                       1750 East County Line Road, Littleton, CO

15.                    U-HAUL STORAGE COLONIAL BLVD
                       4457 Kernel Circle, Fort Myers, FL

16.                    U-HAUL CENTER OF MANDARIN
                       11490 San Jose Blvd., Jacksonville, FL

17.                    U-HAUL STORAGE KEY LARGO
                       103530 Overseas Highway, Key Largo, FL

18.                    U-HAUL CENTER OCOEE
                       11410 West Colonial Drive, Ocoee, FL

19.                    U-HAUL CENTER ORANGE CITY
                       2395 South Volusia Avenue, Orange City, FL

20.                    U-HAUL CENTER KIRKMAN RD
                       600 South Kirkman Road, Orlando, FL

21.                    U-HAUL STORAGE HUNTER CREEK
                       14500 South Orange Blossom Trail, Orlando, FL

22.                    U-HAUL CENTER HUNTERS CREEK
                       13301 S. Orange Blossom Trail, Orlando, FL

23.                    U-HAUL STORAGE ORANGE BLOSSOM TRAIL
                       7803 N. Orange Blossom Trail, Orlando, FL

24.                    U-HAUL CENTER LAKE MARY
                       3851 South Orlando Drive, Sanford, FL

25.                    U-HAUL CENTER GANDY BLVD
                       3939 W. Gandy Boulevard, Tampa, FL

26.                    U-HAUL CTR OF SEMORAN BLVD
                       2055 Semoran Boulevard, Winter Park, FL

27.                    U-HAUL CENTER OF CONYER
                       1150 Dogwood Drive, Conyers, GA
</TABLE>

                                 SCHEDULE A - 2

<PAGE>

<TABLE>
<CAPTION>
 Related
Premises #                          Related Premises
----------                          ----------------
<S>                    <C>
28.                    U-HAUL CENTER KENNESAW
                       2085 Cobb Parkway, Kennesaw, GA

29.                    U-HAUL CENTER OF PLEASANT HILL
                       1290 Pleasant Hill Road, Lawrenceville, GA

30.                    U-HAUL STORAGE HIGHWAY 85
                       7242 U.S. Highway 85, Riverdale, GA

31.                    U-HAUL CENTER S. COBB & I285
                       5285 S. Cobb Drive, Smyrna, GA

32.                    U-HAUL CENTER OF HIGHWAY 124
                       2040 Scenic Highway North, Snellville, GA

33.                    U-HAUL CENTER OF ALSIP
                       11855 South Cicero Avenue, Alsip, IL

34.                    U-HAUL CENTER OF FOX VALLEY
                       195 S. Route 59, Aurora, IL

35.                    U-HAUL CENTER OF CRYSTAL LAKE
                       4504 West Northwest Highway Crystal Lake, IL

36.                    U-HAUL CENTER OF NAPERVILLE
                       11238 S. Route 59, Naperville, IL

37.                    U-HAUL CENTER MERRILLVILLE
                       1650 West 81st Avenue, Merrillville, IN

38.                    U-HAUL CENTER OF LENEXA
                       9250 Marshall Drive; Lenexa, KS

39.                    U-HAUL STORAGE BARKSDALE
                       4100 Barksdale Boulevard, Bossier City, LA

40.                    U-HAUL STORAGE MONGOMERY PARK
                       499 Montgomery Street, Chicopee, MA

41.                    U-HAUL CENTER STOUGHTON
                       224 Washington Street, Stoughton, MA
</TABLE>

                                 SCHEDULE A - 3

<PAGE>

<TABLE>
<CAPTION>
 Related
Premises #                          Related Premises
----------                         -----------------
<S>                     <C>
42.                     U-HAUL CENTER OF CENTRAL AVENUE
                        8671 Central Avenue, Capital Heights, MD

43.                     U-HAUL CTR OF APPLE VALLEY
                        6895 151st Street W, Apple Valley, MN

44.                     U-HAUL CENTER O'FALLON
                        2000 Highway K, O'Fallon, MO

45.                     U-HAUL CENTER ST PETERS
                        3990 North Service Road, St.Peters, MO

46.                     U-HAUL STORAGE HATTIESBURG
                        1303 West 7th Street, Hattiesburg, MS

47.                     U-HAUL CENTER GASTONIA
                        3919 E. Franklin Blvd., Gastonia, NC

48.                     U-HAUL STORAGE HYLTON RD.
                        8505 N. Crescent Blvd,  Pennsauken, NJ

49.                     U-HAUL STORAGE RIO  RANCHO
                        1401 Rio Rancho  Blvd., Rio Rancho, NM

50.                     U-HAUL HENDERSON
                        1098 Stephanie Place, Henderson, NV

51.                     U-HAUL CENTER LAS VEGAS BLVD.
                        8620 S. Las Vegas  Blvd., Las Vegas, NV

52.                     U-HAUL CENTER NELLIS BLVD.
                        333 North Nellis Boulevard,  Las Vegas, NV

53.                     U-HAUL STORAGE RAINBOW
                        2450 North Rainbow Blvd., Las  Vegas, NV

54.                     U-HAUL CENTER WEST CRAIG RD
                        160 West Craig Road, North  Las Vegas, NV

55.                     U-HAUL CENTER BRUCKNER & 138TH ST.
                        780 East 138th  Street, Bronx, NY
</TABLE>

                                 SCHEDULE A - 4

<PAGE>

<TABLE>
<CAPTION>
 Related
Premises #                      Related Premises
-----------                     ----------------
<S>                  <C>
56.                  U-HAUL STORAGE NORTHERN LIGHTS
                     3850 Cleveland Avenue, Columbus, OH

57.                  U-HAUL STORAGE STILLWATER
                     5715 W. 6th Street, Stillwater, OK

58.                  U-HAUL CTR OF COOL SPRINGS
                     1619 Mallory Lane, Brentwood, TN

59.                  U-HAUL CENTER COLLINS STREET
                     2729 N. Collins Street, Arlington, TX

60.                  U-HAUL CENTER SLAUGHTER LANE
                     9001 South IH-35 Northbound, Austin, TX

61.                  U-HAUL STG KINGSLEY/JUPITER
                     11383 Amanda Lane, Dallas, TX

62.                  U-HAUL STORAGE DE SOTO
                     1245 South Beckley, De Soto, TX

63.                  U-HAUL CENTER & STORAGE OF MONTANA
                     8450 Montana Ave., E1 Paso, TX

64.                  U-HAUL CENTER JOHN WHITE
                     1101 East Loop 820, Fort Worth, TX

65.                  U-HAUL CENTER GRAPEVINE
                     3517 William D. Tate Avenue, Grapevine, TX

66.                  U-HAUL CENTER 290
                     14225 Northwest Freeway, Houston, TX

67.                  U-HAUL CENTER HIGHWAY 6 SOUTH
                     8518 Highway 6 South, Houston, TX

68.                  U-HAUL CENTER KATY
                     20435 Katy Freeway, Houston, TX

69.                  U-HAUL CTR CEN-TEX
                     3501 E. Central Texas Expressway, Killeen, TX
</TABLE>

                                 SCHEDULE A - 5

<PAGE>

<TABLE>
<CAPTION>
 Related
Premises #                     Related Premises
-----------                    ----------------
<S>               <C>
70.               U-HAUL CTR OF LEAGUE CITY
                  351 Gulf Freeway South, League City, TX

71.               U-HAUL CENTER LEWISVILLE
                  525 N. Stimmons Freeway,  Lewisville, TX

72.               U-HAUL CENTER WEST MCKINNEY
                  10061 W. University Drive, McKinney, TX

73.               U-HAUL CENTER TOLLWAY
                  1501 N. Dallas Tollway, Plano, TX

74.               U-HAUL CENTER CHANTILLY
                  3995 Westfax Drive, Chantilly, VA

75.               U-HAUL CENTER OF SOUTHPARK
                  804 West Roslyn Road, Colonial Heights, VA

76.               U-HAUL DUMFRIES
                  10480 Dumfries Road, Manassas, VA

77.               U-HAUL CENTER NEWINGTON
                  8207 Terminal Road, Newington, VA

78.               U-HAUL CENTER POTOMAC MILLS
                  14523 Telegraph Road, Woodbridge, VA
</TABLE>

                                            SCHEDULE A- 6<PAGE>

                       MASTER SERVICES AGREEMENT NO. * * *

                                     BETWEEN

                         SYNCHRONOSS TECHNOLOGIES, INC.

                                       AND

                              CINGULAR WIRELESS LLC

                                       FOR

                                    SERVICES

                                       1
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
  representatives, except under written Agreement by the contracting Parties.

Services

CONFIDENTIAL TREATMENT REQUESTED. CONFIDENTIAL PORTIONS OF THIS DOCUMENT HAVE
BEEN REDACTED AND HAVE BEEN SEPARATELY FILED WITH THE COMMISSION.

<PAGE>

                                                                Agreement Number

                                TABLE OF CONTENTS

<TABLE>
<S>                                                                           <C>
ARTICLE I - PREAMBLE.......................................................    3
   1.1    Preamble and Effective Date......................................    3
   1.2    Scope of Agreement...............................................    3

ARTICLE II - DEFINITIONS...................................................    3

ARTICLE III - General Clauses..............................................    4
   3.1    Affiliate........................................................    4
   3.2    Amendments and Waivers...........................................    4
   3.3    Assignment.......................................................    5
   3.4    Cancellation and Termination.....................................    5
   3.5    Compliance with Laws.............................................    5
   3.6    Conflict of Interest.............................................    6
   3.7    Construction and Interpretation..................................    6
   3.8    Cumulative Remedies..............................................    6
   3.9    Delivery, Performance and Acceptance.............................    6
   3.10   Entire Agreement.................................................    7
   3.11   Force Majeure....................................................    7
   3.12   Governing Law....................................................    7
   3.13   Indemnity........................................................    7
   3.14   Information......................................................    8
   3.15   Infringement of Third Party Intellectual Property Rights.........    9
   3.16   Insurance........................................................    9
   3.17   Dispute Resolution...............................................   10
   3.18   Invoicing and Payment............................................   11
   3.19   Licenses and Patents.............................................   11
   3.20   Limitation of Liability..........................................   11
   3.21   * * *............................................................
   3.22   Minority/Woman/Disabled Veteran-owned Business Enterprises
          ("MBE/WBE/DVBE") (and Appendices)................................   12
   3.23   Non-Exclusive Market.............................................   12
   3.24   Notices..........................................................   12
   3.25   Publicity........................................................   13
   3.26   Records and Audits...............................................   13
   3.27   Severability.....................................................   14
   3.28   Survival of Obligations..........................................   14
</TABLE>

                                       i
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
  representatives, except under written Agreement by the contracting Parties.

Services

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                             AGREEMENT NO. * * *

<TABLE>
<S>                                                                           <C>
   3.29   Taxes............................................................   14
   3.30   Term of Agreement................................................   14
   3.31   Warranty.........................................................   14
   3.32   Work Orders......................................................   15

ARTICLE IV - SPECIAL TERMS.................................................   16
    4.1   Access...........................................................   16
    4.2   Background Check.................................................   17
    4.3   Independent Contractor ..........................................   18
    4.4   Work Done By Others. ............................................   17
    4.5   Cingular Corporate Information Security Policy, Compliance by
          Business Partners, Vendors, Contractors..........................   18
</TABLE>

                                       ii
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
  representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.
<PAGE>

                                                            Agreement Number ***

ARTICLE I - PREAMBLE

1.1  PREAMBLE AND EFFECTIVE DATE

This Master Services Agreement ("Agreement") effective as of September 1, 2005
("Effective Date"), is between SYNCHRONOSS TECHNOLOGIES, INC., on behalf of
itself its subsidiaries and it's Affiliates (as defined below) a Delaware
corporation with offices at 1525 Valley Center Parkway, Bethlehem, Pennsylvania
18017 (hereinafter referred to as "Supplier"), and CINGULAR WIRELESS LLC, a
Delaware limited liability company, having an office and place of business at *
* *, on behalf of itself and its Affiliates (hereinafter referred to as
"CINGULAR"), each of which may be referred to in the singular as "Party" or in
the plural as "Parties."

1.2  SCOPE OF AGREEMENT

During the term of this Agreement, CINGULAR may authorize Supplier to perform
work as specified in orders ("Orders") issued by CINGULAR to Supplier. Supplier
will be subject to the terms and conditions contained in each Order and Supplier
will perform those services in accordance with the terms of the Order and this
Agreement. Pricing shall be based on those rates negotiated for each Order.

ARTICLE II - DEFINITIONS

2.1 "AFFILIATE" means (1) a company, whether incorporated or not, which owns,
directly or indirectly, a forty percent (40%) interest in either Party (a
"parent company"), and (2) a company, whether incorporated or not, in which a
five percent (5%) or greater interest is owned, either directly or indirectly,
by: (i) either Party or (ii) a parent company.

2.2 "CANCELLATION" means the occurrence by which either Party puts an end to
this Agreement or Orders placed under this Agreement for breach by the other,
and its effect is the same as that of "Termination" and, except as otherwise
provided for herein, the canceling Party also retains any remedy for breach of
the whole Agreement or any unperformed balance.

2.3 "INFORMATION" means all ideas, discoveries, concepts, know-how, trade
secrets, techniques, designs, Specifications, drawings, sketches, models,
manuals, samples, tools, computer programs, technical information, and other
confidential business, customer or personnel information or data, whether
provided orally, in writing, or through electronic or other means.

2.4 "LIABILITY" means all losses, damages, expenses, costs, penalties, fines and
fees, including reasonable attorneys' fees, arising from or incurred in
connection with a claim or cause of action related to performance or omission of
acts under this Agreement or any Order, including, but not limited to, claims or
causes of actions brought by third parties.

2.5 "ORDER" means such purchase orders, work orders, forms, memoranda or other
written communications as may be delivered to Supplier for the purpose of
ordering Services hereunder.

                                        3
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
   representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

2.6 "SERVICE(S)" means any and all labor or service provided in connection with
this Agreement or an applicable Order, including, but not limited to,
consultation, engineering, installation, removal, maintenance, training,
technical support, repair, and programming. The term "Service" shall also
include any Material, including any Documentation, provided by Supplier in
connection with providing the Services.

2.7 "SPECIFICATIONS" mean (i) Supplier's applicable Specifications and
descriptions, including any warranty statements, and (ii) CINGULAR's
requirements, Specifications, and descriptions specified in, or attached to,
this Agreement or an applicable Order, which shall control over an inconsistency
with Supplier's Specifications and descriptions.

2.8 "TERMINATION" means the occurrence by which either Party, pursuant to the
provisions or powers of this Agreement or pursuant to laws and regulations, puts
an end to this Agreement and/or Orders placed under this Agreement other than
for breach. On "Termination" all executory obligations are discharged, but any
right based on breach of performance survives except as otherwise provided
herein.

2.9 "WORK" means all Material and Services, collectively, that Supplier is
supplying pursuant to Orders placed under this Agreement.

ARTICLE III - GENERAL CLAUSES

3.1  AFFILIATE

Supplier agrees that an Affiliate may place Orders with Supplier, which
incorporate the terms and conditions of this Agreement, and that the term
"CINGULAR" shall be deemed to refer to an Affiliate when an Affiliate places an
Order with Supplier under this Agreement. An Affiliate will be responsible for
its own obligations, including but not limited to, all charges incurred in
connection with such Order. The Parties agree that nothing in this Agreement
will be construed as requiring CINGULAR to indemnify Supplier, or to otherwise
be responsible, for any acts or omissions of an Affiliate, nor shall anything in
this Agreement be construed as requiring an Affiliate to indemnify Supplier, or
to otherwise be responsible, for the acts or omissions of CINGULAR.

3.2  AMENDMENTS AND WAIVERS

This Agreement and any Orders placed hereunder may be amended or modified only
by a written document signed by the authorized representative of the Party
against whom enforcement is sought; provided that CINGULAR may, at any time,
make changes to the scope of Work, and Supplier shall not unreasonably withhold
or condition its consent. * * * No course of dealing or failure of either Party
to strictly enforce any term, right or condition of this Agreement shall be
construed as a general waiver or relinquishment of such term, right, or
condition. A waiver by either Party of any default shall not be deemed a waiver
of any other default.

                                        4
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
   representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

3.3  ASSIGNMENT

* * * Any attempted assignment or transfer not consented to in writing, except
for an assignment to receive money due hereunder, will be void. It is expressly
agreed that any assignment of money will be void if (i) the assignor fails to
give the non-assigning Party at least thirty (30) days prior written notice, or
(ii) the assignment imposes or attempts to impose upon the non-assigning Party
additional costs or obligations in addition to the payment of such money, or
(iii) the assignment attempts to preclude CINGULAR from dealing solely and
directly with Supplier in all matters pertaining to this Agreement, or (iv) the
assignment denies, alters or attempts to alter any of the non-assigning Party's
rights hereunder.

3.4  CANCELLATION AND TERMINATION

a.   Cancellation:

     1.   If either Party fails to cure a material default under this Agreement
          or applicable Order within * * * after written notice, then, in
          addition to all other rights and remedies, the Party not in default
          may cancel this Agreement and/or the Order under which the default
          occurred. * * * Additional provisions for Cancellation of Orders
          hereunder are set forth in this Agreement.

     2.   If Supplier is the Party in default, CINGULAR may Cancel any Orders
          which may be affected by Supplier's default * * *.

b.   Termination:

     * * * In such event, or if Supplier Cancels this Agreement or any Order as
     a result of CINGULAR's failure to cure a material default, CINGULAR shall
     pay Supplier its actual and direct costs incurred to provide the Material
     and Services ordered by CINGULAR, but no more than a percentage of the
     Services performed or Material Delivered, less reimbursements. If
     requested, Supplier agrees to substantiate such costs with proof
     satisfactory to CINGULAR. In no event shall CINGULAR's Liability exceed the
     price of any Material or Services ordered hereunder. After the receipt of
     CINGULAR's payment for any Services, Supplier shall deliver the physical
     embodiments, if any, of such Services. * * *

c.   Partial Cancellation and Termination:

     Where a provision of this Agreement or the applicable Laws permit CINGULAR
     to Terminate or Cancel an Order, such Termination or Cancellation may, at
     CINGULAR's option, be either complete or partial. In the case of a partial
     Termination or Cancellation, CINGULAR may, at its option, Accept a portion
     of the Material or Services covered by an Order and pay Supplier for such
     Material or Services at the unit prices set forth in such Order. The right
     to cancel an Order shall also include the right to cancel any other related
     Order.

3.5  COMPLIANCE WITH LAWS

Supplier shall comply with all applicable federal, state, county, and local
rules, including, without limitation, all statutes, laws, ordinances,
regulations and codes ("Laws"). Supplier's obligation to comply with all Laws
includes the procurement of permits, certificates, approvals, inspections and
licenses, when needed, in the performance of this Agreement. Supplier further
agrees to comply with all applicable Executive and Federal regulations as set
forth in "Executive Orders and Federal

                                        5
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
   representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

Regulations," a copy of which is attached as Appendix 3.5 and by this reference
made a part of this Agreement. Supplier shall defend, indemnify and hold
CINGULAR harmless from and against any Liability that may be sustained by reason
of Supplier's failure to comply with this Section.

3.6  CONFLICT OF INTEREST

Supplier represents and warrants that no officer, director, employee, or agent
of CINGULAR has been or will be employed, retained or paid a fee, or otherwise
has received or will receive any personal compensation or consideration, by or
from Supplier or any of Supplier's officers, directors, employees or agents in
connection with the obtaining, arranging or negotiation of this Agreement or
other documents entered into or executed in connection with this Agreement.

3.7  CONSTRUCTION AND INTERPRETATION

a.   The language of this Agreement shall in all cases be construed simply, as a
     whole and in accordance with its fair meaning and not strictly for or
     against any Party. The Parties agree that this Agreement has been prepared
     jointly and has been the subject of arm's length and careful negotiation.
     Each Party has been given the opportunity to independently review this
     Agreement with legal counsel and other consultants, and each Party has the
     requisite experience and sophistication to understand, interpret and agree
     to the particular language of the provisions. Accordingly, in the event of
     an ambiguity in or dispute regarding the interpretation of this Agreement,
     the drafting of the language of this Agreement shall not be attributed to
     either Party.

b.   Article, section and paragraph headings contained in this Agreement are for
     reference purposes only and shall not affect the meaning or interpretation
     of this Agreement. The use of the word "include" shall mean "includes, but
     is not limited to." The singular use of words shall include the plural and
     vice versa. Except as otherwise specified, Supplier's price for Material
     and Services includes the price for all related Material or Services
     necessary for CINGULAR to use the Material and/or Services for its intended
     purpose, as well as all other Supplier obligations under this Agreement.
     All obligations and rights of the Parties are subject to modification as
     the parties may specifically provide in an Order. "Services" and "Software"
     shall be treated as "goods" for purposes of applying the provisions of the
     Uniform Commercial Code ("UCC"). If there is an inconsistency or conflict
     between the terms in this Agreement and in an Order, the terms in the Order
     shall take precedence.

3.8  CUMULATIVE REMEDIES

Except as specifically identified as a Party's sole remedy, any rights of
Cancellation, Termination, Liquidated Damages or other remedies prescribed in
this Agreement, are cumulative and are not exclusive of any other remedies to
which the injured Party may be entitled. Neither Party shall retain the benefit
of inconsistent remedies.

3.9  DELIVERY, PERFORMANCE AND ACCEPTANCE

Services performed by Supplier shall be deemed to be accepted by CINGULAR when
Services are * * *. Payments, including progress payments, if any, shall not be
construed as Acceptance of Services performed up to the time of such payments.
CINGULAR shall notify Supplier of any Services considered to be unsatisfactory.
Supplier shall, * * *, take prompt action to correct such unsatisfactory
Services. If such unsatisfactory Services have not been corrected within a
reasonable

                                        6
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
   representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

time (not to exceed * * *from date of notification), CINGULAR may, in addition
to all other rights and remedies provided by law or this Agreement, * * *.

3.10 ENTIRE AGREEMENT

a.   The terms contained in this Agreement and in any Orders, including all
     exhibits, appendices and subordinate documents attached to or referenced in
     this Agreement or in any Orders, constitute the entire integrated Agreement
     between Supplier and CINGULAR with regard to the subject matter contained
     herein. This Agreement supercedes all prior oral and written
     communications, agreements and understandings of the Parties, if any, with
     respect hereto. Acceptance of Material or Services, payment or any inaction
     by CINGULAR, shall not constitute CINGULAR's consent to or Acceptance of
     any additional or different terms from those stated in this Agreement,
     except for terms in an Order inserted by CINGULAR and signed by both
     Parties. Estimates furnished by CINGULAR are for planning purposes only and
     shall not constitute commitments. Supplier covenants never to contend
     otherwise.

b.   No oral promises or statement have induced either Party to enter into this
     Agreement, and the Parties agree that the Agreement's express language may
     only be modified or amended through a subsequent written document signed by
     the Parties.

3.11 FORCE MAJEURE

a.   Neither Party shall be deemed in default of this Agreement or any Order to
     the extent that any delay or failure in the performance of its obligations
     results from any cause beyond its reasonable control and without its fault
     or negligence, such as acts of God, acts of civil or military authority,
     embargoes, epidemics, war, riots, insurrections, fires, explosions,
     earthquakes, floods or strikes ("Force Majeure").

b.   If any Force Majeure condition affects Supplier's ability to perform,
     Supplier shall give immediate notice to CINGULAR, and CINGULAR may elect to
     either: (i) Terminate the affected Order(s) or any part thereof, (ii)
     suspend the affected Order(s) or any part thereof for the duration of the
     Force Majeure condition, with the option to obtain Material and Services to
     be furnished under such Order(s) elsewhere, * * * or (iii) resume
     performance under such Order(s) once the Force Majeure condition ceases,
     with an option in CINGULAR to extend any affected Delivery Date for the
     length of time that the Force Majeure condition existed. Unless CINGULAR
     gives written notice within thirty (30) days after being notified of the
     Force Majeure condition, option (ii) shall be deemed selected.

3.12 GOVERNING LAW

This Agreement and performance hereunder shall be governed by the Laws of the
State of * * *, exclusive of its choice of law provisions.

3.13 INDEMNITY

TO THE FULLEST EXTENT PERMITTED BY LAW, SUPPLIER SHALL DEFEND, INDEMNIFY AND
HOLD HARMLESS CINGULAR AND ITS AFFILIATES (INCLUDING THEIR EMPLOYEES, OFFICERS,
DIRECTORS, AGENTS AND CONTRACTORS) AGAINST ANY LIABILITY ARISING FROM OR
INCIDENTAL TO SUPPLIER'S OBLIGATIONS UNDER THIS AGREEMENT OR THE

                                        7
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
   representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

MATERIAL OR SERVICES PROVIDED BY SUPPLIER, INCLUDING (i) INJURIES TO PERSONS,
INCLUDING DEATH OR DISEASE, (ii) DAMAGES TO PROPERTY, INCLUDING THEFT, (iii)
SUPPLIER'S FAILURE TO COMPLY WITH ALL LAWS, AND (iv) LIENS ON CINGULAR'S
PROPERTY.

b.   * * * THIS INDEMNITY SHALL SURVIVE THE DELIVERY, INSPECTION AND ACCEPTANCE
     OF THE MATERIAL OR SERVICES AND THE CANCELLATION, TERMINATION OR EXPIRATION
     OF THIS AGREEMENT.

CINGULAR shall notify Supplier within a reasonable period of time of any written
claim, demand, notice or legal proceedings ("Claim") for which Supplier may be
responsible under this indemnity obligation. A delay in notice shall not relieve
Supplier of its indemnity obligation, except to the extent Supplier can show it
was prejudiced by the delay.

c.   Supplier shall assume, at its expense, the sole defense of the Claim
     through counsel selected by Supplier and shall keep CINGULAR fully informed
     as to the progress of such defense. Upon reasonable request of Supplier and
     at Supplier's expense, CINGULAR shall cooperate with Supplier in the
     defense of the Claim. At its option and expense, CINGULAR may retain or use
     separate counsel to represent it, including in-house counsel. Supplier
     shall maintain control of the defense, except that if the settlement of a
     Claim would adversely affect CINGULAR, Supplier may settle the Claim as to
     CINGULAR only with its consent, which consent shall not be withheld or
     delayed unreasonably. Supplier shall pay the full amount of any judgment,
     award or settlement with respect to the Claim and all other expenses
     related to the resolution of the Claim, including costs, interest and
     reasonable attorneys' fees. If CINGULAR is required to take any action to
     enforce its indemnity rights under this Agreement, or to assume the defense
     of any Claim for which it is entitled to receive an indemnity under this
     Agreement, because of Supplier's failure to promptly assume such defense,
     then CINGULAR may also recover from Supplier any reasonable attorneys' fees
     (including cost of in-house counsel at market rates for attorneys of
     similar experience) and other costs of enforcing its indemnity rights or
     assuming such defense.

Supplier agrees not to implead or bring any action against CINGULAR or
CINGULAR's employees based on any claim by any person for personal injury or
death that occurs in the course or scope of employment of such person by
Supplier and relates to Supplier's performance under this Agreement.

3.14 INFORMATION

a.   Information furnished by CINGULAR.

     1.   Any Information furnished to Supplier in connection with this
          Agreement, including Information provided under a separate
          Non-Disclosure prior to executing this Agreement, shall remain
          CINGULAR's property. Unless such Information was previously known to
          Supplier free of any obligation to keep it confidential, or has been
          or is subsequently made public by CINGULAR or a third party, without
          violating a confidentiality obligation, it shall be kept confidential
          by Supplier, shall be used only in performing under this Agreement,
          and may not be used for other purposes, except as may be agreed upon
          between Supplier and CINGULAR in writing. Supplier is granted no
          rights or license to such Information. All copies of such Information,
          in written, graphic or other tangible form, shall be returned to
          CINGULAR upon the earlier of (i) CINGULAR's request or (ii) upon
          Termination, Cancellation, or expiration of this Agreement. All copies
          of such Information in intangible form, such as electronic records,
          including electronic mail, shall be destroyed upon the earlier of (i)
          CINGULAR's request or (ii) upon Termination, Cancellation, or
          expiration of this Agreement,

                                        8
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
   representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

          and Supplier shall certify to CINGULAR the destruction of all
          intangible copies of such Information.

b.   Information furnished by Supplier.

     Any Information furnished to CINGULAR under this Agreement shall remain
     Supplier's property. * * * If Supplier provides CINGULAR with any
     proprietary or confidential Information* * *, CINGULAR shall use the same
     degree of care to prevent its disclosure to others as CINGULAR uses with
     respect to its own proprietary or confidential Information. * * *

c.   Nothing in this Agreement shall prevent either party from disclosing the
     other party's name or Information pursuant to any court order, lawful
     requirement of a governmental agency or when disclosure is required by
     operation of law (including disclosures pursuant to any applicable
     securities laws and regulations).

3.15 INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS

a.   Supplier agrees to defend, indemnify and hold CINGULAR harmless from and
     against * * *.

b.   Supplier agrees to defend or settle, at its' own expense, any action or
     suit for which it is responsible under this Section. CINGULAR agrees to
     notify Supplier promptly of any claim of infringement and cooperate in
     every reasonable way to facilitate the defense. Supplier shall afford
     CINGULAR, at its own expense and with counsel of CINGULAR's choice, an
     opportunity to participate on an equal basis with Supplier in the defense
     or settlement of any such claim.

3.16 INSURANCE

     a.   With respect to performance hereunder, and in addition to Supplier's
          obligation to indemnify, Supplier agrees to maintain, at all times
          during the term of this Agreement, the following minimum insurance
          coverages and limits and any additional insurance and/or bonds
          required by law:

     b.   Workers' Compensation insurance with benefits afforded under the Laws
          of the state in which the Services are to be performed and Employers
          Liability insurance with minimum limits of $* * * for Bodily
          Injury-each accident, $* * * for Bodily Injury by disease-policy
          limits and $* * * for Bodily Injury by disease-each employee.

     c.   Commercial General Liability insurance with minimum limits of: $* * *
          General Aggregate limit; $* * * each occurrence sub-limit for all
          bodily injury or property damage incurred in any one occurrence; $* *
          * each occurrence sub-limit for Personal Injury and Advertising; $* *
          * Products/Completed Operations Aggregate limit, with a $* * * each
          occurrence sub-limit for Products/Completed Operations. Fire Legal
          Liability sub-limits of $300,000 are required for lease agreements.

     d.   CINGULAR and its Affiliated companies will be listed as an Additional
          Insured on the Commercial General Liability policy.

     e.   If use of a motor vehicle is required, Automobile Liability insurance
          with minimum limits of $* * * combined single limits per occurrence
          for bodily injury and property damage, which coverage shall extend to
          all owned, hired and non-owned vehicles.

                                        9
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
   representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

     f.   CINGULAR requires that companies affording insurance coverage have a
          rating of A- or better and a Financial Size Category rating of VIII or
          better rating, as rated in the A.M. Best Key Rating Guide for Property
          and Casualty Insurance Companies.

     g.   A certificate of insurance stating the types of insurance and policy
          limits provided the Supplier must be received prior to commencement of
          any Work. If a certificate is not received, Supplier hereby authorizes
          CINGULAR, and CINGULAR may, but is not required to, obtain insurance
          on behalf of Supplier as specified herein. CINGULAR will either
          invoice Supplier for the costs incurred to so acquire insurance or
          will reduce by an applicable amount any amount owed to Supplier.

     h.   The cancellation clause on the certificate of insurance will be
          amended to read as follows:

          "THE ISSUING COMPANY WILL MAIL * * * WRITTEN NOTICE TO THE CERTIFICATE
          HOLDER PRIOR TO CANCELLATION OR A MATERIAL CHANGE TO POLICY DESCRIBED
          ABOVE."

     i.   The Supplier shall also require all subcontractors performing Work on
          the project or who may enter upon the work site to maintain the same
          insurance requirements listed above.

3.17 DISPUTE RESOLUTION

          a.   EXCLUSIVE PROCEDURE. Any dispute arising out of or relating to
               this Agreement shall be resolved in accordance with the
               procedures specified in this Section 3.17, which, notwithstanding
               the parties' right to seek injunctive relief, shall be the sole
               and exclusive procedures for the resolution of any such disputes.

          b.   NEGOTIATION BETWEEN EXECUTIVES. Before resorting to other
               remedies available to them, the parties shall attempt in good
               faith to resolve any dispute arising out of or relating to this
               Agreement promptly by negotiation between executives who have
               authority to settle the controversy and who are at a higher level
               of management than the persons with direct responsibility for
               administration of this Agreement. Any party may give the other
               party written notice of any dispute not resolved in the normal
               course of business. Within * * * after delivery of the notice,
               the receiving party shall submit to the other a written response.
               The notice and the response shall include (a) a statement of each
               party's position and a summary of arguments supporting that
               position, and (b) the name and title of the executive who will
               represent that party and of any other person who will accompany
               the executive. Within * * * after delivery of the disputing
               party's notice, the executives of both parties shall meet at a
               mutually acceptable time and place, and thereafter as often as
               they reasonably deem necessary, to attempt to resolve the
               dispute. All reasonable requests for information made by one
               party to the other will be honored.

          c.   NON-BINDING MEDIATION. If the dispute has not been resolved by
               negotiation as provided herein, the parties shall endeavor to
               settle the dispute by mediation under the then current Center for
               Public Resources ("CPR") Model Procedure for Mediation of
               Business Disputes. The neutral third party will be selected from
               the CPR Panel of Neutrals, with the assistance of CPR, unless the
               parties agree otherwise.

          d.   LITIGATION. If a dispute has not been resolved by non-binding
               means as provided herein within * * * of the initiation of such
               procedures, either party may initiate litigation;

                                       10
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
   representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

               provided, however, that if one party has requested the other to
               participate in a non-binding procedure and the other has failed
               to participate, the requesting party may initiate litigation
               before the expiration of the * * * period.

          e.   CONFIDENTIAL NEGOTIATIONS. All negotiations pursuant to this
               section 3.17 are confidential and shall be treated as compromise
               and settlement negotiations for purposes of applicable rules of
               evidence.

          f.   OBLIGATION TO CONTINUE PERFORMANCE. Each party is required to
               continue to perform its obligations under this contract pending
               final resolution of any dispute arising out of or relating to
               this Agreement.

3.18 INVOICING AND PAYMENT

     a.   Except as otherwise specified in an Order, Supplier shall render an
          invoice in duplicate, in arrears on a monthly basis or as otherwise
          agreed by the Parties. The invoice shall specify in detail (i)
          Material and/or Services provided, (ii) associated fees, (iii) whether
          any item is taxable and the amount of tax per item, (iv) shipping
          charges, and (v) total amount due. The invoice shall also reference
          the purchase order number and the Order number. CINGULAR shall pay
          Supplier within * * * of the date of receipt of the invoice in
          accordance with the prices set forth in this Agreement or in the
          applicable Order. Payment for Material or Services not conforming to
          the Specifications, and portions of any invoice in dispute, may be
          withheld by CINGULAR until such nonconformance or dispute has been
          resolved. If CINGULAR disputes any invoice rendered or amount paid,
          CINGULAR shall so notify Supplier. The Parties shall use their best
          efforts to resolve invoicing and payment disputes expeditiously. * * *

     b.   * * * Supplier shall pay any amount due to CINGULAR that is not so
          applied against Supplier's invoices for any reason to CINGULAR within
          * * * after written demand by CINGULAR.

     c.   Supplier agrees to accept standard, commercial methods of payment and
          evidence of payment obligation including, but not limited to, credit
          card payments, purchasing card payments, CINGULAR's purchase orders
          and electronic fund transfers in connection with the purchase of the
          Material and Services.

3.19 LICENSES AND PATENTS

     No licenses express or implied, under any patents, copyrights, trademarks
     or other intellectual property rights are granted by CINGULAR to Supplier
     under this Agreement.

3.20 LIMITATION OF LIABILITY

     In no event shall either party be liable to the other for consequential,
     incidental, special or punitive damages, or for loss of revenue or profit
     in connection with the performance or failure to perform this Agreement,
     regardless of whether such Liability arises from breach of contract, tort
     or any other theory of Liability. With the exception of indemnity
     obligations,

                                       11
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
   representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

     payment obligations, failure to comply with law, or intentional misconduct,
     in no event shall either party's direct damages hereunder exceed $* * *.

3.21 * * *

* * *

3.22 MINORITY/WOMAN/DISABLED VETERAN-OWNED BUSINESS ENTERPRISES ("MBE/WBE/DVBE")
     (AND APPENDICES)

a.   Supplier commits to goals for the participation of M/WBE and DVBE firms (as
     defined in the Section entitled "MBE/WBE/DVBE Cancellation Clause") as
     follows: * * * MBE PARTICIPATION; * * * WBE PARTICIPATION; and * * * DVBE
     PARTICIPATION. These goals apply to all annual expenditures by any entity
     pursuant to this Agreement with Supplier.

b.   Supplier MBE/WBE/DVBE participation may be achieved through cost of goods
     content, contract specific subcontracting or the use of value-added
     resellers. The participation levels identified above will be renegotiated
     to comply with any regulatory requirements imposed on CINGULAR.

c.   Attached hereto and incorporated herein as Appendix 3.22(a) is Supplier's
     completed Participation Plan outlining its M/WBE-DVBE goals and specific
     and detailed plans to achieve those goals. Supplier will submit an updated
     Participation Plan * * *. Supplier will submit M/WBE-DVBE Results Reports *
     * *, using the form attached hereto and incorporated herein as Appendix
     3.22(b). Participation Plans and Results Reports will be submitted to the
     Prime Supplier Results Manager.

3.23 NON-EXCLUSIVE MARKET

It is expressly understood and agreed that this Agreement does not grant
Supplier an exclusive privilege to provide to CINGULAR any or all Material and
Services of the type described in this Agreement, nor does it require CINGULAR
to purchase or license any Material or Services. It is understood, therefore,
that CINGULAR may contract with other manufacturers and suppliers for the
procurement or trial of comparable Material and Services and that CINGULAR may
itself perform the Services described herein.

3.24 NOTICES

a.   Except as otherwise provided in this Agreement or an applicable Order, all
     notices or other communications hereunder shall be deemed to have been duly
     given when made in writing and either (i) delivered in person, or (ii) when
     received, if provided by an overnight or similar delivery service, or (iii)
     when received, if deposited in the United States Mail, postage prepaid,
     return receipt requested, and addressed as follows:

     To: Synchronoss Technologies, Inc.
         750 Route 202 South, Sixth Floor
         Bridgewater, NJ 08807
         * * *

         Copy to

                                       12
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
   representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

         Gunderson Dettmer Stough Villeneuve Franklin & Hachigian, LLP
         610 Lincoln Street
         Waltham, Massachusetts 02451
         Attention: * * *, Esq.

     To: Cingular Wireless LLC
         * * *
         * * *
         Attn.: * * *
         * * *

         Copy to

         Cingular Wireless LLC
         * * *
         * * *
         Attn: * * *

b.   The address to which notices or communications may be given by either Party
     may be changed by written notice given by such Party to the other pursuant
     to this Section.

3.25 PUBLICITY

Supplier shall not use CINGULAR's or its Affiliates' names or any language,
pictures, trademarks, service marks or symbols which could, in CINGULAR's
judgment, imply CINGULAR's or its Affiliates' identity or endorsement by
CINGULAR, its Affiliates or any of its employees in any (i) written, electronic
or oral advertising or presentation or (ii) brochure, newsletter, book,
electronic database or other written matter of whatever nature, without
CINGULAR's prior written consent (hereafter the terms in subsections (i) and
(ii) of this Section shall be collectively referred to as "Publicity Matters").
Supplier will submit to CINGULAR for written approval, prior to publication, all
Publicity Matters that mention or display CINGULAR's or its Affiliates' names,
trademarks or service marks, or that contain any symbols, pictures or language
from which a connection to said names or marks may be inferred or implied.

3.26 RECORDS AND AUDITS

Supplier agrees that it will:

a.   Maintain complete and accurate records related to the Material and Services
     provided by Supplier to CINGULAR, including records of all amounts billable
     to and payments made by CINGULAR in accordance with Generally Accepted
     Accounting Principles and Practices, uniformly and consistently applied in
     a format that will permit audit;

b.   Retain such records and reasonable billing detail for a period of at least
     * * * from the date of final payment for Material and Services;

c.   Provide reasonable supporting documentation to CINGULAR concerning any
     disputed invoice amount within * * * after receipt of written notification
     of such dispute; and,

                                       13
                             PROPRIETARY INFORMATION

The information contained in this Agreement is not for use or disclosure outside
      CINGULAR, Supplier, their affiliated companies and their third party
   representatives, except under written Agreement by the contracting Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.
<PAGE>

                                                            Agreement Number ***

d.   Permit CINGULAR and its authorized representatives to inspect and audit
     during normal business hours the charges invoiced to CINGULAR. Should
     CINGULAR request an audit, Supplier will make available any pertinent
     records and files to CINGULAR during normal business hours at no additional
     charge.

3.27 SEVERABILITY

If any provision of this Agreement is held invalid or unenforceable, such
invalidity or non-enforceability shall not invalidate or render unenforceable
any other portion of this Agreement. The entire Agreement will be construed as
if it did not contain the particular invalid or unenforceable provision(s), and
the rights and obligations of Supplier and CINGULAR will be construed and
enforced accordingly.

3.28 SURVIVAL OF OBLIGATIONS

Obligations and rights in connection with this Agreement, which by their nature
would continue beyond the Termination, Cancellation or expiration of this
Agreement, including, but not limited to, those in the Sections entitled
"Compliance with Laws", "Infringement of Third Party Intellectual Property
Rights", "Indemnity", "Publicity", "Severability", "Information", "Independent
Contractor" and "Warranty" will survive the Termination, Cancellation or
expiration of this Agreement.

3.29 TAXES

a.   Supplier may invoice CINGULAR the amount of any federal excise taxes or
     state or local sales taxes imposed upon the sale of Material or provision
     of Services as separate items, if applicable, listing the taxing
     jurisdiction imposing the tax. Installation, labor and other non-taxable
     charges must be separately stated. CINGULAR agrees to pay all applicable
     taxes to Supplier, which are stated on, and at the time the Material or
     Service invoice is submitted by Supplier. Supplier agrees to remit taxes to
     the appropriate taxing authorities. Supplier agrees that it will honor
     properly prepared retail sales tax exemption certificates, which CINGULAR
     may submit, pursuant to the relevant Sales/Use tax provisions of the taxing
     jurisdictions.

3.30 TERM OF AGREEMENT

a.   This Agreement is effective on September 1, 2005, and shall continue in
     effect unless Terminated or Canceled by either party as provided in this
     Agreement. The Parties may extend the term of this Agreement by mutual
     agreement in writing.

b.   The Termination, Cancellation or expiration of this Agreement shall not
     affect the obligations of either Party to the other Party pursuant to any
     Order previously executed hereunder, and the terms and conditions of this
     Agreement shall continue to apply to such Order as if this Agreement had
     not been Terminated or Canceled.

3.31 WARRANTY

a.   Supplier warrants to CINGULAR that any Services provided hereunder will be
     performed in a first-class, professional manner, in strict compliance with
     the Specifications, and with the care, skill and diligence, and in
     accordance with the applicable standards, currently recognized in

                                       14
                             PROPRIETARY INFORMATION

    The information contained in this Agreement is not for use or disclosure
  outside CINGULAR, Supplier, their affiliated companies and their third party
       representatives, except under written Agreement by the contracting
                                    Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

     Supplier's profession or industry. If Supplier fails to meet applicable
     professional standards, Supplier will, * * *.

b.   Supplier represents and warrants that:

     1.   There are no actions, suits, or proceedings, pending or threatened,
          which will have a material adverse effect on Supplier's ability to
          fulfill its obligations under this Agreement;

     2.   Supplier will immediately notify CINGULAR if, during the term of this
          Agreement, Supplier becomes aware of any action, suit, or proceeding,
          pending or threatened, which may have a material adverse effect on
          Supplier's ability to fulfill the obligations under this Agreement or
          any Order;

     3.   Supplier has all necessary skills, rights, financial resources, and
          authority to enter into this Agreement and related Orders, including
          the authority to provide or license the Material or Services;

     4.   * * *;

     5.   No consent, approval, or withholding of objection is required from any
          entity, including any governmental authority with respect to the
          entering into or the performance of this Agreement or any Order;

     6.   The Material and Services will be provided free of any lien or
          encumbrance of any kind;

     7.   Supplier will be fully responsible and liable for all acts, omissions,
          and Work performed by any of its representatives, including any
          subcontractor;

     8.   All representatives, including subcontractors, will strictly comply
          with the provisions specified in this Agreement and any Order; and,

     9.   Supplier will strictly comply with the terms of this Agreement or
          Order, including those specified in any Exhibits or Appendices
          thereto.

d.   All warranties will survive inspection, Acceptance, payment and use. These
     warranties will be in addition to all other warranties, express, implied or
     statutory. Supplier will defend, indemnify and hold CINGULAR harmless from
     and against all Liabilities for a breach of these warranties.

e.   If at any time during the warranty period for Services, CINGULAR believes
     there is a breach of any warranty, CINGULAR will notify Supplier setting
     forth the nature of such claimed breach. Supplier shall * * *.

f.   If a breach of warranty has not been corrected within a commercially
     reasonable time, or if * * *.

3.32 WORK ORDERS

a.   CINGULAR may order Material and Services by submitting Orders in connection
     with this Agreement. CINGULAR will submit Orders that specify, as a
     minimum, the following information:

                                       15
                             PROPRIETARY INFORMATION

    The information contained in this Agreement is not for use or disclosure
  outside CINGULAR, Supplier, their affiliated companies and their third party
       representatives, except under written Agreement by the contracting
                                    Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

     1.   A description of the Services and/or Material, including any
          numerical/alphabetical identification referenced in the applicable
          price list;

     2.   The requested Delivery/Due Date;

     3.   The applicable price(s)/fee(s);

     4.   The location to which the Material is to be shipped, or the site where
          Services will be rendered;

     5.   The location to which invoices are to be sent for payment; and,

     6.   CINGULAR's Order number.

b.   The terms in this Agreement shall apply to Orders submitted in connection
     with this Agreement, and preprinted terms on the back of any Order shall
     not apply.

ARTICLE IV - SPECIAL TERMS

4.1  ACCESS

a.   When appropriate, Supplier shall have reasonable access to CINGULAR's
     premises during normal business hours, and at such other times as may be
     agreed upon by the Parties, to enable Supplier to perform its obligations
     under this Agreement. Supplier shall coordinate such access with CINGULAR's
     designated representative prior to visiting such premises. Supplier will
     ensure that only persons employed by Supplier or subcontracted by Supplier
     will be allowed to enter CINGULAR's premises. If CINGULAR requests Supplier
     or its subcontractor to discontinue furnishing any person provided by
     Supplier or its subcontractor from performing Work on CINGULAR's premises,
     Supplier shall immediately comply with such request. Such person shall
     leave CINGULAR's premises immediately, and Supplier shall not furnish such
     person again to perform Work on CINGULAR's premises without CINGULAR's
     written consent.

b.   CINGULAR may require Supplier or its representatives, including employees
     and subcontractors, to exhibit identification credentials, which CINGULAR
     may issue to gain access to CINGULAR's premises for the performance of
     Services. If, for any reason, any Supplier's representative is no longer
     performing such Services, Supplier shall immediately inform CINGULAR.
     Notification shall be followed by the prompt delivery to CINGULAR of the
     identification credentials, if issued by CINGULAR, or a written statement
     of the reasons why the identification credentials cannot be returned.

c.   Supplier shall ensure that its representatives, including employees and
     subcontractors will, while on or off CINGULAR's premises, will perform
     Services which (i) conform to the Specifications, (ii) protect CINGULAR's
     Material, buildings and structures, (iii) do not interfere with CINGULAR's
     business operations, and (iv) are performed with care and due regard for
     the safety, convenience and protection of CINGULAR, its employees, and
     property and in full conformance with the policies specified in the
     CINGULAR Code of Conduct, which prohibits the possession of a weapon or an
     implement which can be used as a weapon (a copy of the CINGULAR Code of
     Conduct is available upon request).

d.   * * *

                                       16
                             PROPRIETARY INFORMATION

    The information contained in this Agreement is not for use or disclosure
  outside CINGULAR, Supplier, their affiliated companies and their third party
       representatives, except under written Agreement by the contracting
                                    Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

4.2  BACKGROUND CHECK

Supplier shall conduct a background check for each individual providing Services
to CINGULAR on behalf of Supplier to identify whether the individual has been
convicted of a felony. Supplier agrees that no individual convicted of a felony
will be permitted to provide Services in connection with this Agreement or any
order submitted by CINGULAR without CINGULAR's written consent.

4.3  INDEPENDENT CONTRACTOR

Supplier hereby represents and warrants to CINGULAR that:

a.   Supplier is engaged in an independent business and will perform all
     obligations under this Agreement as an independent contractor and not as
     the agent or employee of CINGULAR;

b.   Supplier's personnel performing Services shall be considered solely the
     employees of Supplier and not employees or agents of CINGULAR;

c.   Supplier has and retains the right to exercise full control of and
     supervision over the performance of the Services and full control over the
     employment, direction, assignment, compensation, and discharge of all
     personnel performing the Services;

d.   Supplier is solely responsible for all matters relating to compensation and
     benefits for all of Supplier's personnel who perform Services. This
     responsibility includes, but is not limited to, (i) timely payment of
     compensation and benefits, including, but not limited to, overtime,
     medical, dental, and any other benefit, and (ii) all matters relating to
     compliance with all employer obligations to withhold employee taxes, pay
     employee and employer taxes, and file payroll tax returns and information
     returns under local, state and federal income tax laws, unemployment
     compensation insurance and state disability insurance tax laws, social
     security and Medicare tax laws, and all other payroll tax laws or similar
     laws with respect to all Supplier personnel providing Services; and,

e.   Supplier will indemnify, defend, and hold CINGULAR harmless from all
     Liabilities, costs, expenses and claims related to Supplier's failure to
     comply with the immediately preceding paragraph.

4.4  WORK DONE BY OTHERS

If any part of Supplier's Work is dependent upon work performed by others,
Supplier shall inspect and promptly report to CINGULAR any defect that renders
such other work unsuitable for Supplier's proper performance. Supplier's silence
shall constitute approval of such other work as fit, proper and suitable for
Supplier's performance of its Work.

4.5  CINGULAR CORPORATE INFORMATION SECURITY POLICY, COMPLIANCE BY BUSINESS
     PARTNERS, VENDORS, CONTRACTORS

Security Requirements for System or Network Access by Contractors

Contractors must comply with these security requirements ("Requirements") to
have access to Cingular's computers, computer peripherals, computer
communications networks, computer

                                       17
                             PROPRIETARY INFORMATION

    The information contained in this Agreement is not for use or disclosure
  outside CINGULAR, Supplier, their affiliated companies and their third party
       representatives, except under written Agreement by the contracting
                                    Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

systems/applications/software, network elements and their support systems, and
the information stored, transmitted, or processed using these resources
("Information Resources.") "Contractor" means a person or business entity with a
written agreement ("Agreement") to perform services for Cingular. "User" means
any individual performing services under the Agreement, whether as an employee,
approved subcontractor, or agent of Contractor. "Cingular Sponsor" means the
Cingular management employee responsible for the oversight of the services
provided by Contractor.

These Requirements apply to Contractors and Users performing services on
Cingular premises or remotely accessing Cingular infrastructure, systems or
applications using Cingular-provisioned client-VPN and to those providing
services to Cingular that are hosted external to Cingular premises.

A. COMPLIANCE WITH LAW AND GENERAL POLICY. Contractors must comply with the
"CINGULAR CORPORATE INFORMATION SECURITY POLICY" as set forth on Exhibit 1.
Contractors must protect Cingular Information Resources and Cingular proprietary
or confidential data or information in accordance with the terms and conditions
of the Agreement (including any separate confidentiality agreements), and must
comply with all applicable international, federal, state, and local laws and
regulations related to use of Information Resources and protection of Cingular's
data or information. Contractor is responsible for ensuring that all Users it
employs or contracts with comply with these Requirements. Additionally,
regarding its Users, Contractor shall:

1.   Ensure that all Users are covered by a legally binding obligation that
     protects Cingular's proprietary and confidential information and are
     briefed on these Requirements.

2.   Perform a criminal background check on each User prior to allowing the User
     to access an Information Resource, and not allow such access if the User
     has been convicted of or is currently awaiting trial for a felony offense
     or a misdemeanor related to computer security, theft, fraud or violence.

3.   Not subcontract any part of the work under the Agreement whereby a
     subcontractor will have access to Cingular's Information Resources without
     written approval of Cingular.

B. AUDITS. Upon at least * * * notice from Cingular, and subject to reasonable
security requirements of Contractor, Contractor shall provide Cingular's
designated representatives, if under a commercially reasonable nondisclosure
agreement with both Cingular and Contractor, with access to and any assistance
that it may require with respect to the Contractor's facilities, systems and
software for the purpose of performing commercially reasonable tests and audits
to determine compliance with these Requirements, including intellectual property
audits if applicable, data privacy and security audits, and audits or
inspections of the services and related operational processes and procedures,
and access to any SAS-70 audits performed during the term of the Agreement. If
Contractor is advised that it is not in compliance with any aspect of these
Requirements, Contractor shall promptly take actions to comply with the audit
findings. If Contractor is substantially in nonconformance with the foregoing,
in addition to any remedies that Cingular may have, Contractor shall bear the
reasonable cost of a re-audit after Contractor indicates to Sponsor that the
audit findings have been remedied. Cingular may audit or inspect any computer
hardware or software used by Users in the performance of work for Cingular, and
may periodically review or monitor any use of Information Resources by User. Any
User using Cingular Information Resources in an inappropriate manner may be
subject to removal from the Cingular account, and to any other legal remedies
Cingular may have.

C. PRIVACY OF CUSTOMER INFORMATION. Contractor acknowledges that information
regarding Cingular's customers and personnel, such as their account information,
(including by way of example, name, address, telephone number, credit card
information or social security number) ("Customer Information") are subject to
certain privacy laws and regulations, as well as the requirements of Cingular.
Such Customer Information is to be considered private, sensitive and
confidential. Accordingly, with respect to Customer Information, Contractor
agrees it shall not:

                                       18
                             PROPRIETARY INFORMATION

    The information contained in this Agreement is not for use or disclosure
  outside CINGULAR, Supplier, their affiliated companies and their third party
       representatives, except under written Agreement by the contracting
                                    Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                            Agreement Number ***

1.Use Customer Information for any purpose except as expressly authorized by
Cingular in writing;

2.Disclose Customer Information to any party except as expressly authorized by
Cingular in writing;

3. Incorporate Customer Information into any database other than in a database
maintained exclusively for the storage of Cingular's Customer Information;

4. Sale, license or lease Customer Information to any other party;

5. Allow access to Customer Information only to those employees of Contractor
with a need to know and for use only for the purposes set forth in the
Agreement.

D. NOTIFICATION OF SECURITY BREACH. Contractor will immediately notify Cingular
Sponsor of any breach of these Requirements, including any breach that allows or
could allow a third party to have access to any Customer Information, including
but not limited to the following:

     Social Security Number
     Driver License Number
     Home Address
     Credit or debit card numbers
     Date of birth
     Visa / passport number

     Bank account numbers
     Mother's maiden name
     Application PIN or password
     Tax identification number
     Credit information
     Cingular Account Information

                                       19
                             PROPRIETARY INFORMATION

    The information contained in this Agreement is not for use or disclosure
  outside CINGULAR, Supplier, their affiliated companies and their third party
       representatives, except under written Agreement by the contracting
                                    Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                                Agreement Number

             E. VISA Cardholder Information Security Program (CISP)

If applicable, Contractor shall adhere to all Payment Card Industry (PCI) Data
Security Standard Requirements (VISA), as may be modified, for storing,
processing, and transmitting credit card or debit cardholder information on
behalf of Cingular Wireless. Security requirements apply to all "system
components" which is defined as any network component or server, or application
included or connected to the Cingular Customer Cardholder data environment.
Network components include, but are not limited to firewalls, switches, routers,
wireless access points, network appliances, or other appliances. Servers
include, but not limited to, web database, authentication, and DNS mail proxy.
Applications include all purchased and custom applications including internal
and external web applications.

In the event that Contractor causes harm due to negligence or compromises a
Cingular Wireless customer's cardholder information, it shall be liable for all
penalties, or expenses incurred as a result of such a compromise.

For detailed information regarding the Visa Cardholder information Security
Program, see the following web page:
http://usa.visa.com/business/accepting_visa/ops_risk_management/cisp.html?
ep=v_sym_cisp

To view the Payment Card Industry (PCI) Data Security Program requirements,
navigate to "PCI Data Security Standard" and open the PDF.

F. RETURN OR DESTRUCTION OF DATA. At the termination or expiration of the
Agreement or when there is no longer a business need or data retention
requirement, or at the request of Cingular, and in accordance with all laws,
Contractor will either return, or purge and destroy at Cingular's direction, all
Cingular data, including Customer Information from Contractor's and User's own
information resources, according to Cingular standards, and will notify Cingular
when this has been accomplished.

G. CHANGES. These Requirements are subject to change and revision by Cingular
from time to time. Cingular is responsible for advising Contractor of any
changes. Contractor is responsible for complying with the revised Requirements.
If Contractor is unable to comply with the Requirements as revised, it may seek
a waiver within a reasonable time following the notification of change.

H. WAIVER AND EFFECT. By accepting these Requirements, Contractor agrees to
comply fully with all the Requirements. If Contractor wishes to provide Cingular
with services that are not in full compliance with the Requirements, it shall
request and negotiate with the Cingular Sponsor a written waiver.

I. REMEDIES. Failure of Contractor to comply with the Requirements may result in
Cingular's terminating the Agreement and exercising any other legal rights it
may have.

J. CONFLICTS/NON-INTEGRATION. These Requirements are intended to supplement and
not replace any written agreements that the Contractor may enter into with
Cingular. In the event of a conflict between these Requirements and a signed
written agreement between the parties, the signed written agreement shall
control. In the event there is a conflict between these Requirement and any oral
agreement between the parties, these Requirements shall control.

4.6  OWNERSHIP OF WORK PRODUCT

* * *

                                       20
                             PROPRIETARY INFORMATION

    The information contained in this Agreement is not for use or disclosure
  outside CINGULAR, Supplier, their affiliated companies and their third party
       representatives, except under written Agreement by the contracting
                                    Parties.

Services

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                                Agreement Number

IN WITNESS WHEREOF, the parties have caused this Agreement to be executed by
their duly authorized representatives:

SYNCHRONOSS TECHNOLOGIES, INC.          CINGULAR WIRELESS LLC

By:                                     By:
   ----------------------------------       ------------------------------------
Printed Name:                           Printed Name:
             ------------------------                 --------------------------
Title:                                  Title:
      -------------------------------          ---------------------------------
Date:                                   Date:
      -------------------------------         ----------------------------------

                                       21
                             PROPRIETARY INFORMATION

    The information contained in this Agreement is not for use or disclosure
  outside CINGULAR, Supplier, their affiliated companies and their third party
       representatives, except under written Agreement by the contracting
                                    Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                                Agreement Number

                                   Appendix 1

                    EXECUTIVE ORDERS AND FEDERAL REGULATIONS

Work under this Agreement may be subject to the provisions of certain Executive
Orders, federal laws, state laws and associated regulations governing
performance of this Agreement including, but not limited to: Executive Order
11246, Executive Order 11625, Executive Order 11701 and Executive Order 12138,
Section 503 of the Rehabilitation Act of 1973, as amended, and the Vietnam Era
Veteran's Readjustment Assistance Act of 1974. To the extent that such Executive
Orders, federal laws, state laws and associated regulations apply to the Work
under this Agreement, and only to that extent, Supplier (also referred to as
"Contractor") agrees to comply with the provisions of all such Executive Orders,
federal laws, state laws and associated regulations, as now in force or as may
be amended in the future, including, but not limited to, the following:

1.   EQUAL EMPLOYMENT OPPORTUNITY DUTIES AND PROVISIONS OF GOVERNMENT
     CONTRACTORS

     In accordance with 41 C.F.R. Section 60-1.4(a), the parties incorporate
     herein by this reference the regulations and contract clauses required by
     that section, including, but not limited to, Supplier's agreement that it
     will not discriminate against any employee or applicant for employment
     because of race, color, religion, sex or national origin. Supplier will
     take affirmative action to ensure that applicants are employed, and that
     employees are treated during employment, without regard to their race,
     color, religion, sex or national origin.

2.   AGREEMENT OF NON SEGREGATED FACILITIES

     In accordance with 41 C.F.R. Section 60-1.8, Supplier agrees that it does
     not and will not maintain or provide for its employees any facilities
     segregated on the basis of race, color, religion, sex or national origin at
     any of its establishments, and that it does not, and will not, permit its
     employees to perform their services at any location, under its control,
     where such segregated facilities are maintained. The term "facilities" as
     used herein means waiting rooms, work areas, restaurants and other eating
     areas, time clocks, rest rooms, washrooms, locker rooms and other storage
     or dressing areas, parking lots, drinking fountains, recreation or
     entertainment areas, transportation, and housing facilities provided for
     employees; provided that separate or single-user restrooms and necessary
     dressing or sleeping areas shall be provided to assure privacy between the
     sexes.

3.   AGREEMENT OF AFFIRMATIVE ACTION PROGRAM

     Supplier agrees that it has developed and is maintaining an Affirmative
     Action Plan as required by 41 C.F.R. Section 60-1.4(b).

                                       22
                             PROPRIETARY INFORMATION

    The information contained in this Agreement is not for use or disclosure
  outside CINGULAR, Supplier, their affiliated companies and their third party
       representatives, except under written Agreement by the contracting
                                    Parties.

Services

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                                Agreement Number

4.   AGREEMENT OF FILING

     Supplier agrees that it will file, per current instructions, complete and
     accurate reports on Standard Form 100 (EE0-1), or such other forms as may
     be required under 41 C.F.R. Section 60-1.7(a).

5.   AFFIRMATIVE ACTION FOR HANDICAPPED PERSONS AND DISABLED VETERANS, VETERANS
     OF THE VIETNAM ERA.

     In accordance with 41 C.F.R. Section 60-250.20, and 41 C.F.R. Section
     60-741.20, the parties incorporate herein by this reference the regulations
     and contract clauses required by those provisions to be made a part of
     government contracts and subcontracts.

6.   UTILIZATION OF SMALL, SMALL DISADVANTAGED AND WOMEN-OWNED SMALL BUSINESS
     CONCERNS

     As   prescribed in 48 C.F.R., Ch. 1, 19.708(a):

     (a)  It is the policy of the United states that small business concerns,
          small business concerns owned and controlled by socially and
          economically disadvantaged individuals and small business concerns
          owned and controlled by women shall have the maximum practicable
          opportunity to participate in performing contracts let by any Federal
          agency, including contracts and subcontracts for systems, assemblies,
          components and related services for major systems. It is further the
          policy of the United States that its prime contractors establish
          procedures to ensure the timely payment amounts due pursuant to the
          terms of the subcontracts with small business concerns, small business
          concerns owned and controlled by socially and economically
          disadvantaged individuals and small business concerns owned and
          controlled by women.

     (b)  Supplier hereby agrees to carry out this policy in the awarding of
          subcontracts to the fullest extent consistent with efficient contract
          performance. Supplier further agrees to cooperate in any studies or
          surveys as may be conducted by the United States Small Business
          Administration or the awarding agency of the United States as may be
          necessary to determine the extent of Supplier's compliance with this
          clause.

     (c)  As used in this Agreement, the term "small business concern" shall
          mean a small business as defined pursuant to Section 3 of the Small
          Business Act and relevant regulations promulgated pursuant thereto.
          The term "small business concern owned and controlled by socially and
          economically disadvantaged individuals" shall mean a small business
          concern (i) which is at least fifty-one percent (51%) unconditionally
          owned by one or more socially and economically disadvantaged
          individuals, or, in the case of any publicly owned business, at least
          fifty-one percent (51%) of the stock of which is unconditionally owned
          by one or more socially and economically disadvantaged individuals;
          and (ii) whose management and daily business operations are controlled
          by one or more such individuals. This term shall also mean a small
          business concern that is at least fifty-one percent (51%)
          unconditionally owned by an economically disadvantaged Indian tribe or
          Native Hawaiian Organization, or a publicly owned business having at
          least fifty-one percent (51%) of its stock unconditionally owned by
          one of these entities which has its management and daily business
          controlled by members of an economically disadvantaged Indian tribe or
          Native Hawaiian Organization, and which meets the requirements of 13
          CRF part 124. Supplier shall presume that "socially and economically
          disadvantaged individual" includes Black Americans, Hispanic
          Americans, Native Americans, Asian-Pacific Americans, Subcontinent
          Asian Americans and other minorities, or any other individual found to
          be disadvantaged by the Administration pursuant to Section 8(a) of the
          Small

                                       23
                             PROPRIETARY INFORMATION

    The information contained in this Agreement is not for use or disclosure
  outside CINGULAR, Supplier, their affiliated companies and their third party
       representatives, except under written Agreement by the contracting
                                    Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                                Agreement Number

          Business Act. Supplier shall presume that socially and economically
          disadvantaged entities also include Indian Tribes and Native Hawaiian
          Organizations.

     (d)  The term "small business concern owned and controlled by women" shall
          mean a small business concern (i) which is at least fifty-one percent
          (51%) owned by one or more women, or, in the case of any publicly
          owned business, at least fifty-one percent (51%) of the stock of which
          is owned by one or more women, and (ii) whose management and daily
          business operations are controlled by one or more women; and

     (e)  Suppliers acting in good faith may rely on written representations by
          their subcontractors regarding their status as a small business
          concern, a small business concern owned and controlled by socially and
          economically disadvantaged individuals or a small business concern
          owned and controlled by women.

7.   SMALL, SMALL DISADVANTAGED AND WOMEN-OWNED SMALL BUSINESS SUBCONTRACTING
     PLAN.

     The subcontractor will adopt a plan similar to the plan required by 48 CFR
     Ch. 1 at 52.219-9.

                                       24
                             PROPRIETARY INFORMATION

    The information contained in this Agreement is not for use or disclosure
  outside CINGULAR, Supplier, their affiliated companies and their third party
       representatives, except under written Agreement by the contracting
                                    Parties.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.
<PAGE>

Cingular Wireless LLC                                               RFP SH092801

                                  Appendix 2(a)

                                 PRIME SUPPLIER
                         MBE/WBE/DVBE PARTICIPATION PLAN

PRIME SUPPLIER NAME __________________________

ADDRESS: _____________________________________

TELEPHONE NUMBER: ____________________________

DESCRIBE GOODS OR SERVICES BEING PROVIDED UNDER THIS AGREEMENT:

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

DESCRIBE YOUR M/WBE-DVBE OR SUPPLIER DIVERSITY PROGRAM AND THE PERSONNEL
DEDICATED TO THAT PROGRAM:

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

THE FOLLOWING, TOGETHER WITH ANY ATTACHMENTS IS SUBMITTED AS AN MBE/WBE/DVBE
PARTICIPATION PLAN.

1.   GOALS

     A.   WHAT ARE YOUR MBE/WBE/DVBE PARTICIPATION GOALS?

          -    MINORITY BUSINESS ENTERPRISES (MBES) _____________%

          -    WOMEN BUSINESS ENTERPRISES (WBES)    _____________%

          -    DISABLED VETERANS BUSINESS           _____________%
               ENTERPRISES (DVBES)

     B.   WHAT IS THE ESTIMATED ANNUAL VALUE OF THIS CONTRACT WITH CINGULAR
          WIRELESS? ______________

     C.   WHAT ARE THE DOLLAR AMOUNTS OF YOUR PROJECTED MBE/WBE/DVBE PURCHASES?

          -    MINORITY BUSINESS ENTERPRISES (MBES) _____________

          -    WOMEN BUSINESS ENTERPRISES (WBES) _____________

          -    DISABLED VETERANS BUSINESS _____________
               ENTERPRISES (DVBES)

*    SEE MBE/WBE/DVBE CANCELLATION CLAUSE IN AGREEMENT FOR DEFINITIONS OF MBE,
     WBE, AND DVBE*

2.   LIST THE PRINCIPAL GOODS AND/OR SERVICES TO BE SUBCONTRACTED TO
     MBE/WBE/DVBEs OR DELIVERED THROUGH MBE/WBE/DVBE VALUE ADDED RESELLERS.

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

                                       25
                             PROPRIETARY INFORMATION

      The information contained herein is not for use or disclosure outside
    CINGULAR, supplier, their affiliated and subsidiary companies, and their
          third party representatives, except under written agreement.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                                                                         9/14/99
                                                                   Rev. 02/26/01
<PAGE>

DETAILED PLAN FOR USE OF M/WBES-DVBES AS SUBCONTRACTORS, DISTRIBUTORS, VALUE
ADDED RESELLERS

For every product and service you intend to use, provide the following
information: (Attach additional sheets if necessary)

<TABLE>
<CAPTION>
                                   PRODUCTS
               CLASSIFICATION      /SERVICES
COMPANY NAME   (MBE/WBE/DVBE)   TO BE PROVIDED   $ VALUE   DATE TO BEGIN
------------   --------------   --------------   -------   -------------
<S>            <C>              <C>              <C>       <C>

</TABLE>

3.   SELLER AGREES THAT IT WILL MAINTAIN ALL NECESSARY DOCUMENTS AND RECORDS TO
     SUPPORT ITS EFFORTS TO ACHIEVE ITS MBE/WBE/DVBE PARTICIPATION GOAL (S).
     SELLER ALSO ACKNOWLEDGES THE FACT THAT IT IS RESPONSIBLE FOR IDENTIFYING,
     SOLICITING AND QUALIFYING MBE/WBE/DVBE SUBCONTRACTORS, DISTRIBUTORS AND
     VALUE ADDED RESELLERS.

4.   THE FOLLOWING INDIVIDUAL, ACTING IN THE CAPACITY OF MBE/WBE/DVBE
     COORDINATOR FOR SELLER, WILL:

     -    ADMINISTER THE MBE/WBE/DVBE PARTICIPATION PLAN,

     -    SUBMIT SUMMARY REPORTS, AND

     -    COOPERATE IN ANY STUDIES OR SURVEYS AS MAY BE REQUIRED IN ORDER TO
          DETERMINE THE EXTENT OF COMPLIANCE BY THE SELLER WITH THE
          PARTICIPATION PLAN.

NAME: (PRINTED) ________________________________________________________________

TITLE: _________________________________________________________________________

TELEPHONE NUMBER: ______________________________________________________________

AUTHORIZED SIGNATURE:___________________________________________________________

                                       26
                             PROPRIETARY INFORMATION

      The information contained herein is not for use or disclosure outside
    CINGULAR, supplier, their affiliated and subsidiary companies, and their
          third party representatives, except under written agreement.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

DATE: ____________________

                                       27
                             PROPRIETARY INFORMATION

      The information contained herein is not for use or disclosure outside
    CINGULAR, supplier, their affiliated and subsidiary companies, and their
          third party representatives, except under written agreement.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

Cingular Wireless LLC                                               RFP SHO92801

                                  Appendix 2(b)

                                    CINGULAR

                       M/WBE-DVBE QUARTERLY RESULTS REPORT

NOTE: Subcontracting & Value Added Reseller Results should reflect ONLY
      M/WBE-DVBE dollars directly traceable to purchases DURING THE REPORT
      QUARTER.

<TABLE>
<S>                                  <C>                              <C>
1. REPORTING COMPANY:                2. CONTRACT/WORK ORDER NUMBER:   3. REPORT QUARTER:

   Name: _________________________      ___________________________   This report reflects the
                                                                      utilization of Minority
   Address: ______________________      (If available)                Business Enterprise/ Woman
   _______________________________                                    Business Enterprise/Disabled
   City, _________________________                                    Veterans Enterprise
   State, ________________________                                    participation for period
   Zip: __________________________                                    through (Please indicate
   Telephone: ____________________                                    dates)

          PARTICIPATION GOAL                                          PARTICIPATION ACHIEVEMENT

4.                                   5.

                                                                      ACTUAL FOR QUARTER

                                                                      MBE   WBE   DVBE
                                                                      ---   ---   ----
                       ANNUAL                Subcontracting Dollars
                 GOAL                           Value Added Reseller  $__   $__   $__
                  MBE   WBE   DVBE           Dollars
                 ----   ---   ----              Total Purchase        $__   $__   $__
   Percent of
   Total
   Purchases      __%   __%    __%
</TABLE>

                                       28
                            PROPRIETARY INFORMATION

The information contained herein is not for use or disclosure outside CINGULAR,
   supplier, their affiliated and subsidiary companies, and their third party
                representatives, except under written agreement.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                                                                         9/14/99
                                                                   Rev. 02/26/01
<PAGE>

<TABLE>
<S>                                  <C>                              <C>
                                                  Agreement Number: _____

                                             Dollars                  $______________
                                             Percentage of Total
                                             Purchases                %__   %__   %__

                          VALUE ADDED RESELLER* RESULTS

*    SUPPLIER WHO PURCHASES PRODUCTS/SERVICES FROM AN ORIGINAL EQUIPMENT
     MANUFACTURER OR OTHER PRIME SUPPLIER FOR RESALE AND PROVIDES ENHANCEMENTS
     OR ADDED VALUE TO THE BASIC PRODUCT. (Attach additional sheets if
     necessary)

6.                                   Ethnic/Gender:                   Total Dollars:
                                     --------------                   --------------
   Name: ___________________________________________________________________________________________

   Address: ________________________________________________________________________________________

   City, State, Zip: _______________________________________________________________________________

   Telephone: _______________________________

   Goods or Services: ______________________________________________________________________________

                                     Ethnic/Gender:                   Total Dollars:
                                     --------------                   --------------
   Name: ___________________________________________________________________________________________

   Address: ________________________________________________________________________________________

   City, State, Zip: _______________________________________________________________________________

   Telephone: _______________________________

   Goods or Services: ______________________________________________________________________________

                                                  Agreement Number:
   _________________________________________________________________________________________________
</TABLE>

                                       29
                            PROPRIETARY INFORMATION

The information contained herein is not for use or disclosure outside CINGULAR,
   supplier, their affiliated and subsidiary companies, and their third party
                representatives, except under written agreement.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                       30
                            PROPRIETARY INFORMATION

The information contained herein is not for use or disclosure outside CINGULAR,
   supplier, their affiliated and subsidiary companies, and their third party
                representatives, except under written agreement.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.
<PAGE>

                                                         Agreement Number: _____

                                    EXHIBIT 1

It is the policy of Cingular Wireless to take active steps to ascertain any
identified or suspected risks to the electronic information and services of the
company through the use of, providing external access to, outsourcing to or
employment of Contractors. Acceptance of this exhibit provided an explicit
assertion of compliance with each of the individual provisions as enumerated
within this exhibit.

                        Security Compliance Requirements

* * *

                                       31
                             PROPRIETARY INFORMATION

The information contained herein is not for use or disclosure outside CINGULAR,
   supplier, their affiliated and subsidiary companies, and their third party
                representatives, except under written agreement.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                         Agreement Number: _____

                                CINGULAR WIRELESS
                                    EXHIBIT B

                    EXECUTIVE ORDERS AND FEDERAL REGULATIONS

Work under this Agreement may be subject to the provisions of certain Executive
Orders, federal laws, state laws, and associated regulations governing
performance of this contract including, but not limited to: Executive Order
11246, Executive Order 11625, Executive Order 11701, and Executive Order 12138,
Section 503 of the Rehabilitation Act of 1973 as amended and the Vietnam Era
Veteran's Readjustment Assistance Act of 1974. To the extent that such Executive
Orders, federal laws, state laws, and associated regulations apply to the work
under this Agreement, and only to that extent, SUPPLIER (also referred to as
"SUPPLIER") agrees to comply with the provisions of all such Executive Orders,
federal laws, state laws, and associated regulations, as now in force or as may
be amended in the future, including, but not limited to the following:

1.   EQUAL EMPLOYMENT OPPORTUNITY DUTIES AND PROVISIONS OF GOVERNMENT SUPPLIERS

In accordance with 41 C.F.R. Section 60-1.4(a), the parties incorporate herein
by this reference the regulations and contract clauses required by that section,
including but not limited to, SUPPLIER's agreement that it will not discriminate
against any employee or applicant for employment because of race, color,
religion, sex, or national origin. The SUPPLIER will take affirmative action to
ensure that applicants are employed, and that employees are treated during
employment, without regard to their race, color, religion, sex, or national
origin.

2.   AGREEMENT OF NON SEGREGATED FACILITIES

In accordance with 41 C.F.R. Section 60-1.8, SUPPLIER agrees that it does not
and will not maintain or provide for its employees any facilities segregated on
the basis of race, color, religion, sex, or national origin at any of its
establishments, and that it does not and will not permit its employees to
perform their services at any location, under its control, where such segregated
facilities are maintained. The term "facilities" as used herein means waiting
rooms, work areas, restaurants and other eating areas, time clocks, rest rooms,
wash rooms, locker rooms and other storage or dressing areas, parking lots,
drinking fountains, recreation or entertainment areas, transportation, and
housing facilities provided for employees; provided, that separate or
single-user restroom and necessary dressing or sleeping areas shall be provided
to assure privacy between the sexes.

3.   AGREEMENT OF AFFIRMATIVE ACTION PROGRAM

SUPPLIER agrees that it has developed and is maintaining an Affirmative Action
Plan as required by 41 C.F.R. Section 60-1.4(b).

4.   AGREEMENT OF FILING

SUPPLIER agrees that it will file, per current instructions, complete and
accurate reports on Standard Form 100 (EE0-1), or such other forms as may be
required under 41 C.F.R. Section 60-1.7(a).

5.   AFFIRMATIVE ACTION FOR HANDICAPPED PERSONS AND DISABLED VETERANS, VETERANS
     OF THE VIETNAM ERA.

In accordance with 41 C.F.R. Section 60-250.20, and 41 C.F.R. Section 60-741.20,
the parties incorporate herein by this reference the regulations and contract
clauses required by those provisions to be made a part of government contracts
and subcontracts.

                                       32
                             PROPRIETARY INFORMATION

The information contained herein is not for use or disclosure outside CINGULAR,
   supplier, their affiliated and subsidiary companies, and their third party
                representatives, except under written agreement.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                                         Agreement Number: _____

6.   EXECUTIVE ORDER 13201 COMPLIANCE

In accordance with 29 C.F.R. Part 470.2(b) the parties incorporate by reference
the regulations and contract clauses required by those provisions to be made a
part of covered subcontracts and purchase orders and SUPPLIER agrees to comply
with the provisions of 29 CFR Part 470.

7.   UTILIZATION OF SMALL, SMALL DISADVANTAGED AND WOMEN-OWNED SMALL BUSINESS
     CONCERNS

     AS   PRESCRIBED IN 48 C.F.R., CH. 1, 19.708(A):

     (A)  It is the policy of the United states that small business concerns,
          small business concerns owned and controlled by socially and
          economically disadvantaged individuals and small business concerns
          owned and controlled by women shall have the maximum practicable
          opportunity to participate in performing contracts let by any Federal
          agency, including contracts and sub-contracts for systems, assemblies,
          components, and related services for major systems. It is further the
          policy of the United States that its prime SUPPLIERs establish
          procedures to ensure the timely payment amounts due pursuant to the
          terms of the subcontracts with small business concerns, small business
          concerns owned and controlled by socially and economically
          disadvantaged individuals and small business concerns owned and
          controlled by women.

     (B)  The SUPPLIER hereby agrees to carry out this policy in the awarding of
          subcontracts to the fullest extent consistent with efficient contract
          performance. The SUPPLIER further agrees to cooperate in any studies
          or surveys as may be conducted by the United States Small Business
          Administration or the awarding agency of the United States as may be
          necessary to determine the extent of the SUPPLIER's compliance with
          this clause.

     (C)  As used in this contract, the term small business concern shall mean a
          small business as defined pursuant to section 3 of the Small Business
          Act and relevant regulations promulgated pursuant thereto. The term
          small business concern owned and controlled by socially and
          economically disadvantaged individuals shall mean a small business
          concern which is at least 51 percent unconditionally owned by one or
          more socially and economically disadvantaged individuals; or, in the
          case of any publicly owned business, at least 51 percent of the stock
          of which is unconditionally owned by one or more socially and
          economically disadvantaged individuals; and (2) whose management and
          daily business operations are controlled by one or more such
          individuals. This term also means small business concern that is at
          least 51 percent unconditionally owned by an economically
          disadvantaged Indian tribe or Native Hawaiian Organization, or a
          publicly owned business having at least 51 percent of its stock
          unconditionally owned by one of these entities which has its
          management and daily business controlled by members of an economically
          disadvantaged Indian tribe or Native Hawaiian Organization, and which
          meets the requirements of 13 CRF part 124. The SUPPLIER shall presume
          that socially and economically disadvantaged individual include Black
          Americans, Hispanic Americans, Native Americans, Asian-Pacific
          Americans, Subcontinent Asian Americans, and other minorities, or any
          other individual found to be disadvantaged by the Administration
          pursuant to section 8(a) of the Small business Act. The SUPPLIER shall
          presume that socially and economically disadvantaged entities also
          include Indian Tribes and Native Hawaiian Organizations.

     (D)  The term "small business concern owned and controlled by women" shall
          mean a small business concern (i) which is at least 51 percent owned
          by one or more women, or, in the case of any publicly owned business,
          at least 51 percent of the stock of which is owned by one or more
          women, and (ii) whose management and daily business operations are
          controlled by one or more women; and

     (E)  SUPPLIERs acting in good faith may rely on written representations by
          their sub-SUPPLIERs regarding their status as a small business
          concern, a small business concern owned and controlled by socially and
          economically disadvantage individuals or a small business concern
          owned and controlled by women.

8.   SMALL, SMALL DISADVANTAGED AND WOMEN-OWNED SMALL BUSINESS SUB-CONTRACTING
     PLAN. THE SUB-SUPPLIER WILL ADOPT A PLAN SIMILAR TO THE PLAN REQUIRED BY 48
     CFR CH. 1 AT 52.219-9.

                                       33
                             PROPRIETARY INFORMATION

The information contained herein is not for use or disclosure outside CINGULAR,
   supplier, their affiliated and subsidiary companies, and their third party
                representatives, except under written agreement.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

<PAGE>

                                       34

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.
<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

(CINGULAR RAISING THE BAR(SM) LOGO)

CINGULAR ONLINE
Cingular Online Order Management Center (OMC)
Statement of Work (SOW)
September 1, 2005
Final

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

                                TABLE OF CONTENTS

<TABLE>
<S>                                                                           <C>
1.0   INTRODUCTION.........................................................    4
      1.1 GENERAL AGREEMENTS...............................................    4
      1.2 OVERVIEW PROGRAM SCOPE...........................................    4
2.0   SERVICE TERM.........................................................    4
3.0   * * * PROGRAM OBJECTIVES.............................................    5
      3.1 * * * PROCESSING.................................................    5
      3.2 * * * SCOPE......................................................    5
      TABLE 1.0: * * * *...................................................    5
      3.3 * * *............................................................    5
4.0   * * * SOLUTIONS......................................................    6
      4.1 * * *............................................................    6
      4.2 * * *............................................................    6
      4.3 * * *............................................................    6
      4.4 * * *............................................................    6
5.0   * * *................................................................    7
      5.1 * * * REQUIREMENTS...............................................    7
      5.2 SECURE ENVIRONMENT...............................................    7
      5.3 ACCESS SECURITY..................................................    7
      5.4 SECURITY AND PRIVACY.............................................    7
      5.5 ENVIRONMENTAL STANDARDS..........................................    7
      5.6 MONITORING.......................................................    8
      5.7 BACKUPS..........................................................    8
6.0   DISASTER RECOVERY (DR)...............................................    9
      6.1 DR SOLUTION OVERIEW..............................................    9
      6.2 DR SERVICE LEVELS................................................    9
7.0   CINGULAR TERMINATION FOR CONVENIENCE AND BUY-OUT PROVISION...........   10
      7.1 CINGULAR TERMINATION FOR CONVIENENCE.............................   10
      7.2 DEDICATED INFRASTRUCTURE BUYOUT..................................   10
8.0   RELATED DOCUMENTS....................................................   12
9.0   SIGNOFF SHEET........................................................   13
</TABLE>

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary
<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

1.0  INTRODUCTION

     1.1  GENERAL AGREEMENTS

     This Statement of Work ("SOW") between Cingular Wireless LLC ("Cingular")
     and Synchronoss Technologies, Inc. ("STI") is governed by the Professional
     Services Agreement ("PSA") dated September 1, 2005. The parties agree that
     this SOW confirms and memorializes an agreement with respect to services
     provided to Cingular by STI commencing April 28, 2003 and replaces and
     supersedes the Cingular eCommerce Statement of Work dated July 16, 2003 and
     the "Appendix A: AWS Order Management Center (OMC) SOW", dated July, 2003
     as amended in their entirety. As such, the parties agree that the Cingular
     eCommerce Statement of Work dated July 16, 2003 and the "Appendix A: AWS
     Order Management Center (OMC) SOW", dated July 2003, as amended, are
     terminated as of the date hereof, provided, any rights that accrued
     thereunder prior to the date hereof shall survive termination.

     Defined terms used in this SOW will have the meanings ascribed to them in
     this SOW or in the PSA. In the event of a conflict between this SOW and the
     PSA, the terms of the SOW will govern. SOW modifications need to be in
     writing, as well as mutually agreed upon by both parties.

     1.2  OVERVIEW PROGRAM SCOPE

     The scope of this SOW is to define the work activities, * * * pricing,
     forecasting process, service level agreements and remedies associated with
     the Services performed by STI for Cingular's internet organization
     ("Cingular Online").

     Cingular Online objectives are to streamline the back office management
     process relating to the sale of wireless telecommunications services by
     Cingular Online, improve cycle times for such sales, reduce the transaction
     cost per subscriber and create an exceptional customer experience. This SOW
     provides Cingular Online with an Application Service Provider ("ASP")
     solution that enables STI to manage Cingular's business objectives. The
     Services to be performed by STI under this SOW are as follows:

     CUSTOMER ONLINE ORDER MANAGEMENT CENTER (OMC):

     * * *

     * * *:

          -    * * *

2.0  SERVICE TERM

     The term of this SOW is * * * from the date of signature of this SOW (the
     "Initial Term"). The SOW will renew in successive additional * * * terms,
     unless either party provides written notice of non-renewal * * * prior to
     the date of termination. Any time during the term of this SOW, either party
     may propose an increase or decrease in the scope of this SOW. In such
     event, the parties will negotiate in good faith an amendment to this SOW
     with the revised scope, deliverables, and associated pricing.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

3.0  * * * PROGRAM OBJECTIVES

     The objectives for the Order Management Center ("OMC") are to establish and
     manage scalable, reliable and flexible center operations. * * * STI is
     required to closely adhere to all of Cingular's business processes and
     security standards in performing its * * *Services to ensure a seamless
     Cingular branded customer experience. * * *

     3.1  * * * PROCESSING

     The primary source of * * * will be generated from Cingular * * *. The goal
     of the * * * is to consistently deliver against the SLA commitments. The *
     * * operating hours will be * * *. The * * * will operate * * *.

     3.2  * * * SCOPE

     * * * commitments will be adjusted * * *. A * * * forecast will be provided
     to STI by Cingular on the * * *. The forecast will provide STI with the
     revised * * *. This data will be utilized to revise the * * * commitments
     for the * * *. Addendum A describes in detail the forecast methodology.

     TABLE 1.0: PROJECTED * * * 2005*

<TABLE>
<S>     <C>     <C>
* * *   * * *   * * *
* * *   * * *   * * *
</TABLE>

*    The forecast process is defined in Addendum A - Pricing Agreement. SLA and
     Remedies are defined in Addendum B.

     3.3  * * *

     A key objective of the * * *is to consistently * * *. In order to
     accomplish this objective, the * * * will * * *. In addition, the * * *
     agents will * * *. * * *

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

4.0  * * * SOLUTIONS

     4.1 * * *

     * * *

     4.2 * * *

         * * *

     4.3 * * *

     * * *

     4.4 * * *

     * * *

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

     5.0  * * * HOSTING

     The objective of hosting the * * * is to provide Cingular with a * * *. The
     costs identified in this SOW are based upon STI standard pricing.
     Significant deviations from the STI systems architecture that exists on the
     Effective Date could impact the cost and schedule for the * * *effort. In
     addition to * * *, STI will provide * * * support for this environment. * *
     * services are defined in Addendum D * * * Operations Management Document.

     5.1  HOSTING REQUIREMENTS

     STI will provide and maintain * * *.

     STI will provide to Cingular a list of all hardware, software, and
     equipment located at STI's premises that will be used to perform the
     Services required under this SOW. STI shall provide sufficient hardware,
     software and equipment to ensure * * *% availability of the Services.
     Subject to Cingular's payment of the fees set forth in Section 7.2,
     Cingular shall own the hardware and equipment purchased by STI to fulfill
     its obligations under this SOW (the "Dedicated Infrastructure").

     5.2  SECURE ENVIRONMENT

     The premises, hardware, and application must be accessible only to
     authorized personnel. * * *

     5.3  ACCESS SECURITY

     Access control is achieved via a combination of access control * * *.

     5.4  SECURITY AND PRIVACY

     In the event STI receives Cingular Data (as defined in the PSA), STI may
     not use such Cingular Data for any purpose other than the fulfillment of
     STI's obligations of this SOW. STI may not provide such Cingular Data to
     any third-party for any reason, unless specifically authorized in writing
     by Cingular; provided, however, if STI is required to produce such Cingular
     Data to comply with any legal, regulatory, law enforcement or similar
     requirements or investigations, STI may do so after providing Cingular i)
     prior written notice of its intent to produce the Cingular Data and ii) an
     opportunity to seek a protective order or similar mechanism to prevent
     disclosure as Cingular deems necessary. STI shall comply with any other
     Cingular security or privacy requirements in effect at any time during the
     term of this SOW. * * *. At a minimum, STI will undertake the following
     measures to ensure the security of all Cingular Data and other Cingular
     information:

     * * *

     5.5  ENVIRONMENTAL STANDARDS

     Any hardware required to perform the Services under this SOW will be
     protected from damage by:

     * * *

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

     5.6  MONITORING

     The following monitoring tools and practices will be provided by STI.

     * * *

     5.7  BACKUPS

     Data and applications will be automatically backed up * * *. * * *

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

6.0  DISASTER RECOVERY (DR)

     STI will provide a disaster recovery solution for the all Services required
     under this SOW that enables rapid restoration of all functions of the
     system in event of a long-term service disruption to * * *. This section
     provides an overview of the infrastructure required to support the disaster
     recovery solution as well as the service levels associated with the
     solution.

     6.1  DR SOLUTION OVERIEW

     STI will * * * provide a highly available system that can restore the * * *
     system to * * *. * * *

     A * * * will be implemented to ensure that * * *.

     6.2  DR SERVICE LEVELS

     The following service levels are associated with the DR solution:

          -    Service restoration time: * * *

          -    System performance level: * * *

          -    System SLA's: * * *

     NOTE: This solution will rely on the implementation of a dedicated, private
     circuit (e.g. friends net connection) between STI's Bridgewater, NJ office
     and Cingular's Bothell, WA facility.

          -    DR test will be performed * * *.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

7.0  CINGULAR TERMINATION FOR CONVENIENCE AND BUY-OUT PROVISION

     In the event Cingular desires to terminate the SOW prior to the end of its
     term, Cingular may exercise its right for Termination for Convenience as
     described in Section 7.1. In addition, STI may provide transition services
     subject to a mutually agreeable SOW that may include the following terms:

          1.   Specific key milestones and dates in which Cingular can exercise
               the right to migrate all or part of the * * *.

          2.   Identification of the work effort needed and the related costs to
               establish a mutually acceptable SOW to help transition the
               production environment to Cingular.

     7.1  CINGULAR TERMINATION FOR CONVIENENCE

          1.   If Cingular or STI terminates for convenience with less than * *
               *notice, Cingular or Synchronoss (whichever party terminates)
               will pay the other a termination fee equal to * * *% of * * *
               (the "Termination Fee").

          2.   In the case of a termination by Cingular, * * *.

     7.2  DEDICATED INFRASTRUCTURE BUYOUT

          1.   Upon any termination of the PSA or this SOW prior to expiration
               of the Initial Term, Cingular may, at its discretion, pay the
               applicable Buyout Fee set forth in Table 2 below in exchange for
               ownership of the Dedicated Infrastructure (if Cingular elects not
               to pay the Buyout Fee, then STI shall retain ownership of the
               Dedicated Infrastructure). At the end of the * * *of the Term of
               the Agreement, ownership of the Dedicated Infrastructure will
               automatically vest in Cingular without further action.

               TABLE 2: BUYOUT FEE*

<TABLE>
<CAPTION>
* * *   BUYOUT
-----   ------
<S>     <C>
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
</TABLE>

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

<TABLE>
<CAPTION>
* * *   BUYOUT
-----   ------
<S>     <C>
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
* * *   $* * *
</TABLE>

*    The Buyout Fee in this table is in addition to the Termination Fee defined
     in paragraph 1 and 2 of section 7.1.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

8.0  RELATED DOCUMENTS

     1.   Addendum A - * * * Pricing Agreement doc

     2.   Addendum B - * * * SLA and Remedies doc

     3.   Addendum C - Cingular Master Professional Services Agreement (PSA)

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

9.0  SIGNOFF SHEET

     IN WITNESS WHEREOF, this Agreement is executed by the duly authorized
     representatives of the Parties.

SYNCHRONOSS TECHNOLOGIES, INC.          SYNCHRONOSS TECHNOLOGIES, INC.

Signature:                              Signature:
           --------------------------              -----------------------------
Name:                                   Name:
      -------------------------------         ----------------------------------
Title:                                  Title:
       ------------------------------          ---------------------------------
Date:                                   Date:
      -------------------------------         ----------------------------------

CINGULAR                                CINGULAR

Signature:                              Signature:
           --------------------------              -----------------------------
Name:                                   Name:
      -------------------------------         ----------------------------------
Title:                                  Title:
       ------------------------------          ---------------------------------
Date:                                   Date:
      -------------------------------         ----------------------------------

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

CINGULAR                                CINGULAR

Signature:                              Signature:
           --------------------------              -----------------------------
Name:                                   Name:
      -------------------------------         ----------------------------------
Title:                                  Title:
       ------------------------------          ---------------------------------
Date:                                   Date:
      -------------------------------         ----------------------------------

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                        (C) 2005 Synchronoss Technologies Inc
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

(CINGULAR RAISING THE BAR(SM) LOGO)

CINGULAR ONLINE
Cingular Online Order Management Center (OMC)
Addendum A - Pricing Agreement
September 1, 2005
Final

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                    (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

                                TABLE OF CONTENTS

<TABLE>
<S>                                                                           <C>
1.0 * * * Pricing Schedule.................................................    3
   1.1 * * * Service Fee...................................................    3
   1.2 Cingular Online Order Mangement Center (OMC) - * * * Service Fees...    4
   1.3 Cingular Online Order Management Center (OMC) - * * * Service Fees..    5
   1.4 Cingular Online Order Management Center (OMC) - * * * Service Fees..    6
2.0 Forecasting............................................................    7
   2.1 * * * Forecast......................................................    7
   2.2 * * * Forecast......................................................    7
3.0 Pricing Assumptions....................................................    8
4.0 Travel and Living Expenses.............................................   10
</TABLE>

CONFIDENTIAL TREATMENT REQUESTED

7/01/05                              Page 2

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

1.0  * * * PRICING SCHEDULE

     This section of the SOW provides the * * * service fees associated with the
     Agreement. The service fees in this SOW go into effect on the Effective
     Date of the Agreement. Modifications to any of the prices herein need to be
     in writing, and mutually agreed upon by both parties.

     1.1  * * * SERVICE FEE

     Table 1 represents the * * * fee for the * * *. The * * * fee is applied to
     every * * *.

     TABLE 1: * * * SERVICE FEE

<TABLE>
<CAPTION>
                    TIERED
                   GATEWAY
                   SERVICE
SERVICE FEE TYPE    FEE ID   SERVICE CHARGE   * * * FEE
----------------   -------   --------------   ---------
<S>                <C>       <C>              <C>
      * * *          *T1          * * *         $* * *
     SERVICE          T2          * * *         $* * *
       FEE            T3          * * *         $* * *
</TABLE>

*    T = * * *Service Fee

1.   The * * * Service Fee assumes * * * may contain a maximum of * * * of
     service per * * *. * * *

2.   The * * * Price applies to all * * * in that tier. * * *

3.   * * * Notwithstanding anything herein to the contrary, if the initial or
     final period of the term of the Agreement does not span an entire * * *,
     the * * * shall be a prorated * * * based on the * * *.

CONFIDENTIAL TREATMENT REQUESTED

7/01/05                              Page 3

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

1.2 CINGULAR ONLINE ORDER MANGEMENT CENTER (OMC) - * * * SERVICE FEES

Table 3 represents the service fees associated with * * *.

TABLE 3: OMC * * * SERVICE FEES:

<TABLE>
<CAPTION>
                                                              * * * Fees
                                         -----------------------------------------------------
SERVICE                                       * * *             * * *         * * *
  FEE     CINGULAR   SERVICE   SERVICE   ---------------   ---------------   ------
 TYPE      SYSTEM     FEE ID    CHARGE    * * *    * * *    * * *    * * *    * * *      SLA
-------   --------   -------   -------   ------   ------   ------   ------   ------   --------
<S>       <C>        <C>       <C>       <C>      <C>      <C>      <C>      <C>      <C>
 * * *      * * *    ** * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
            * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
 * * *      * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
            * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
 * * *      * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
            * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
 * * *      * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
            * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
 * * *      * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
            * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
 * * *      * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
            * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
 * * *      * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
 * * *      * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   * * *
            * * *     * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   * * *
 * * *                * * *     * * *    $* * *   $* * *   $* * *   $* * *   $* * *   Addendum
                                                                                          B
</TABLE>

*    O = * * * Fees in * * *

**   TBD = To Be Determined when sufficient data is available

***  * * *

CONFIDENTIAL TREATMENT REQUESTED

7/01/05                             Page 4

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

1.3 CINGULAR ONLINE ORDER MANAGEMENT CENTER (OMC) - * * * SERVICE FEES

Table 4 represents the service fees associated with * * *

TABLE 4: OMC * * * SERVICE FEE

<TABLE>
<CAPTION>
                                                                   * * *FEES
                                              ---------------------------------------------------
                                                   * * *             * * *             * * *
                   SERVICE                    ---------------   ---------------   ---------------
SERVICE FEE TYPE    FEE ID   SERVICE CHARGE    * * *    * * *    * * *    * * *    * * *    * * *
----------------   -------   --------------   ------   ------   ------   ------   ------   ------
<S>                <C>       <C>              <C>      <C>      <C>      <C>      <C>      <C>
      * * *         ** * *        * * *        * * *    * * *   $* * *   $* * *    * * *    * * *
                     * * *        * * *        * * *    * * *   $* * *   $* * *    * * *    * * *
      * * *          * * *        * * *        * * *    * * *   $* * *   $* * *    * * *    * * *
                     * * *        * * *        * * *    * * *   $* * *   $* * *    * * *    * * *
      * * *          * * *        * * *        * * *    * * *   $* * *   $* * *    * * *    * * *
                     * * *        * * *        * * *    * * *   $* * *    * * *    * * *    * * *
      * * *          * * *        * * *        * * *    * * *   $* * *    * * *    * * *    * * *
      * * *          * * *        * * *        * * *    * * *    * * *    * * *    * * *    * * *
      * * *          * * *        * * *        * * *    * * *   $* * *    * * *    * * *    * * *
      * * *          * * *        * * *        * * *    * * *    * * *    * * *    * * *    * * *
      * * *          * * *        * * *        * * *    * * *    * * *    * * *    * * *    * * *
      * * *          * * *        * * *       $* * *   $* * *   $* * *   $* * *   $* * *   $* * *
</TABLE>

*    B = * * *

CONFIDENTIAL TREATMENT REQUESTED

7/01/05                             Page 5

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

1.4 CINGULAR ONLINE ORDER MANAGEMENT CENTER (OMC) -* * * SERVICE FEES

Table 5 represents the service fees associated for * * *.

TABLE 5: * * * FEES

<TABLE>
<CAPTION>
                                                                   * * *FEES
                                              ---------------------------------------------------
                                                   * * *             * * *             * * *
                   SERVICE                    ---------------   ---------------   ---------------
SERVICE FEE TYPE    FEE ID   SERVICE CHARGE   * * *    * * *    * * *    * * *    * * *    * * *
----------------   -------   --------------   ------   ------   ------   ------   ------   -----
<S>                <C>       <C>              <C>      <C>      <C>      <C>      <C>      <C>
      * * *         * * *         * * *       $* * *    * * *   $* * *    * * *   $* * *    * * *
      * * *         * * *         * * *       $* * *    * * *   $* * *    * * *   $* * *    * * *
      * * *         * * *         * * *       $* * *    * * *   $* * *    * * *   $* * *    * * *
      * * *         * * *         * * *       $* * *    * * *   $* * *    * * *   $* * *    * * *
      * * *         * * *         * * *       $* * *   $* * *   $* * *   $* * *   $* * *   $* * *
      * * *         * * *         * * *       $* * *   $* * *   $* * *   $* * *   $* * *   $* * *
      * * *         * * *         * * *       $* * *   $* * *   $* * *   $* * *   $* * *   $* * *
      * * *         * * *         * * *       $* * *   $* * *   $* * *   $* * *   $* * *   $* * *
</TABLE>

*    T = * * * Fees

**   * * *

CONFIDENTIAL TREATMENT REQUESTED

7/01/05                             Page 6

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

2.0  FORECASTING

     2.1 * * * FORECAST

     Cingular will provide Synchronoss with a * * * forecast on or about * * *.
     The forecast will provide Synchronoss with * * *. If the forecast is not
     received * * *Synchronoss Technologies (STI) will invoke the prior * *
     *forecast.

     * * *

     2.2 * * * FORECAST

     Cingular will provide Synchronoss with * * *. If the forecast is not
     received * * * Synchronoss Technologies (STI) will invoke the prior * * *
     forecast for * * *.

CONFIDENTIAL TREATMENT REQUESTED

7/01/05                             Page 7

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary
<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

3.0  PRICING ASSUMPTIONS

     1.   STI and Cingular will meet once every 3-6 months to review and adjust
          the * * * prices where appropriate.

     2.   Synchronoss and Cingular agree to review and adjust where appropriate
          the * * * fees * * * after * * * is implemented for this * * *.
          Cingular will determine, at its option, when this review will take
          place. Any adjustment to * * *will be mutually agreed to by both
          parties and the pricing table amended as soon as possible.

     3.   Within * * * after signature of the SOW, STI agrees to meet and
          reassess * * *. Any adjustments would be mutually agreed to by both
          parties

     4.   In the event that the time studies reveal a material change in costs,
          greater than * * * %, both parties agree to review in detail the core
          reason for the change. In the event that a change is attributed to
          performance, then both parties will mutually agree if a change is
          warranted.

     5.   The service fee in this appendix is for * * *.

     6.   Service levels apply only to * * *. * * *

     7.   STI anticipates * * *. These * * * could be priced at a different
          rate. The rate for * * * would be determined by * * *. * * *

     8.   New * * * not identified in Section 3.0 of this SOW would be handled
          through a written change request. New * * * will require * * *. * * *
          STI anticipates * * *. * * *

     9.   Any modifications requested by Cingular that impact * * * may require
          pricing adjustments.

CONFIDENTIAL TREATMENT REQUESTED

7/01/05                              Page 8

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

OPERATIONS MANAGEMENT TEAM

     As part of this SOW, STI will provide Cingular with Operations Management
     support. The dedicated team will provide Cingular with the following
     services:

     PROGRAM MANAGEMENT:

     Responsibilities include project management, business analysis, and
     functional analysis to support new development, features and functionality.
     * * *

     OPERATIONS MANAGEMENT:

     Responsibilities include credit, activation, and order fulfillment, * * *
     management, service level monitoring and reporting, staffing, * * *,
     training, and * * *.

     For planning purposes STI assumes a minimum number of resources will be
     required for a period of * * *. At the end of * * * Cingular may adjust the
     number of FTEs on a * * * basis. Adjustments to the resources must be
     communicated in writing * * * before the start of the next * * *. Table 6
     reflects the schedule and fee for the Operations Management Team.

     TABLE 6: OPERATIONS MANAGEMENT TEAM SCHEDULE AND COST

<TABLE>
<CAPTION>
MONTHS/QTR    FTES   PRICE PER FTE    TOTAL
----------   -----   -------------   ------
<S>          <C>     <C>             <C>
* * *        * * *       $* * *      $* * *
* * *        * * *        * * *       * * *
</TABLE>

CONFIDENTIAL TREATMENT REQUESTED

7/01/05                              Page 9

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

4.0  TRAVEL AND LIVING EXPENSES

     Travel and living expenses (e.g.: airfare, hotel, car, meal, phone)
     associated with program activities will be pre-approved per Cingular travel
     policy and billed back to Cingular * * *.

CONFIDENTIAL TREATMENT REQUESTED

7/01/05                              Page 10

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

                                       750 Route 202 South Bridgewater, NJ 08807
(SYNCHRONOSS TECHNOLOGIES INC. LOGO)   www.synchronoss.com

(CINGULAR RAISING THE BAR(SM) LOGO)

CINGULAR ONLINE
Cingular Online
Addendum B - SLA and Remedies
September 1, 2005
Final

CONFIDENTIAL TREATMENT REQUESTED

7/01/05                                   (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary
<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

                                TABLE OF CONTENTS

<TABLE>
<S>                                                                           <C>
1.0 SERVICE LEVEL REQUIREMENTS AND REMEDIES................................    3
   1.1   * * *  SERVICE LEVEL REQUIREMENTS:................................    3
   1.2   * * *  SERVICE LEVEL REQUIREMENTS:................................    4
   1.3   * * *  SERVICE LEVELS REQUIREMENTS................................    7
2.0 * * *  SERVICE LEVELS AND REMEDIES.....................................    8
   2.1   * * *  AVAILABILITY...............................................    8
   2.2   Description for * * *.............................................   10
3.0 ASSUMPTIONS............................................................   11
   3.1   METHODS AND PROCEDURES (M&P)......................................   11
   3.2   SECURITY..........................................................   11
   3.3   REMEDIES..........................................................   11
</TABLE>

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

7/1/05                               Page 2

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

1.0  SERVICE LEVEL REQUIREMENTS AND REMEDIES

     1.1  * * * SERVICE LEVEL REQUIREMENTS:

          1.   * * * % of all * * * in * * * period will be * * *.

          2.   STI will not be responsible for failures to meet the Service
               Level Requirement for those * * *.

          3.   If any * * * is greater than * * * % of the * * *, then STI will
               * * *.

          4.   Special events will be reviewed on an individual basis. Cingular
               and STI agree to meet and review special event requirements on as
               needed basis. STI will apply best efforts to fulfill special
               event request.

          In the event the Service Level Requirement is not met in a given * *
          *, STI will provide to Cingular the discount set forth on Table 1 each
          * * *.

          If the Service Level Requirement exceeded in a given * * *, STI will
          invoice Cingular the * * *.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

7/1/05                               Page 3

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

     TABLE 1: * * * SERVICE LEVELS AND REMEDIES

<TABLE>
<CAPTION>
SLA ID**   * * * SLA INDEX   *$-DISCOUNT (CREDIT) PER * * *
--------   ---------------   ------------------------------
<S>        <C>               <C>
* * *           * * *               * * * % of * * *
* * *           * * *               * * * % of * * *
* * *           * * *               * * * % of * * *
* * *           * * *                    * * *
* * *           * * *               * * * % of * * *
* * *           * * *               * * * % of * * *
* * *           * * *               * * * % of * * *
* * *           * * *                 * * * % of v
* * *           * * *               * * * % of * * *
</TABLE>

*    Remedies will be applied * * * and apply to the total * * * amount from
     tables 3 and 4 of Addendum A.

** * * * SLA

*** - * * *

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

7/1/05                               Page 4

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary
<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

     1.2 * * * Service Level Requirements:

          1.   * * * % of * * * by STI in * * * will be * * * . * * *

          2.   STI will not be responsible for failure to * * * reasons outside
               of STI's control; including and without limitation * * *.

          3.   * * *

          4.   The * * * process will be * * * by * * *, when available, that
               will * * *.

          5.   * * * that are not * * * will not be * * *.

     In the event the Service Level Requirement is not met in a given * * *, STI
     will provide to Cingular * * *.

     If the Service Level Requirement is exceeded by STI in a given * * *, STI
     will * * * Cingular * * *.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

7/1/05                               Page 5

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary
<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

TABLE 2: * * * SERVICE LEVELS AND REMEDIES

<TABLE>
<CAPTION>
SLA ID**   ** * * SLA INDEX   *$-DISCOUNT (CREDIT) PER * * *
--------   ----------------   ------------------------------
<S>        <C>                <C>
  * * *          * * *               * * * % of * * *
  * * *          * * *               * * * % of * * *
  * * *          * * *               * * * % of * * *
  * * *          * * *                     * * *
  * * *          * * *               * * * % of * * *
  * * *          * * *               * * * % of * * *
  * * *          * * *               * * * % of * * *
  * * *          * * *               * * * % of * * *
</TABLE>

*    Remedies will be applied * * * and apply to * * *.

**   * * * Service Level

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

7/1/05                               Page 6

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

1.3  * * * SERVICE LEVELS REQUIREMENTS

1.   STI will not be responsible for failures to meet the Service Level
     Requirement for any * * *. * * *

2.   * * * * * *

TABLE 3: * * * SERVICE LEVELS

<TABLE>
<CAPTION>
SLA ID*   SERVICE LEVEL CATEGORY   SERVICE LEVEL
-------   ----------------------   -------------
<S>       <C>                      <C>
 * * *             * * *               * * *
 * * *             * * *               * * *
 * * *             * * *               * * *
</TABLE>

*    IC = * * * Service Level

STI and Cingular will meet no less than once every 3 to 6 months to review and
modify the * * *, SLA and remedies where appropriate.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

7/1/05                               Page 7

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

2.0  * * * SERVICE LEVELS AND REMEDIES

          2.1  * * * AVAILABILITY

          SYSTEM AVAILABILITY:
          The * * * is available * * * excluding * * *.

          * * * SERVICE LEVELS:

      * * *

          SERVICE LEVEL MEASUREMENT PROCESS:
          * * *

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

7/1/05                               Page 8

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

TABLE 4: * * * GUIDELINES

<TABLE>
<CAPTION>
Platform   * * * Criteria
--------   --------------
<S>        <C>
  * * *         * * *
  * * *         * * *
  * * *         * * *
  * * *         * * *
  * * *         * * *
</TABLE>

***  ELIGIBLE FOR REMEDIES:

* * *

* * *

TABLE 5: * * * SERVICE LEVELS AND REMEDIES

<TABLE>
<CAPTION>
Service Level - * * *   %-Discount (Credit) off * * * Fee*
---------------------   ----------------------------------
<S>                     <C>
        * * *                    * * * % DISCOUNT
        * * *                    * * * % DISCOUNT
        * * *                    * * * % DISCOUNT
        * * *                    * * * % DISCOUNT
</TABLE>

*    Discounts will be applied * * *

*    SLA's and remedies do not apply when STI, * * *.

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

7/1/05                               Page 9

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

TABLE 6: * * * CALCULATION

<TABLE>
<CAPTION>
* * *   * * *
-----   -----
<S>     <C>
* * *   * * *
* * *   * * *
* * *   * * *
* * *   * * *
* * *   * * *
* * *   * * *
* * *   * * *
* * *   * * *
* * *   * * *
</TABLE>

TABLE 7: * * * SERVICE LEVELS AND REMEDIES

<TABLE>
<CAPTION>
SERVICE LEVEL - * * *   REMEDY
---------------------   ------
<S>                     <C>
* * *                    * * *
* * *                    * * *
</TABLE>

*    Credits accrued by STI as a result of * * * outages can be applied to
     remedies/penalties incurred by STI.

     * * *

     2.2 Description for * * *

* * *

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

7/1/05                               Page 10

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

3.0  ASSUMPTIONS

     3.1  METHODS AND PROCEDURES (M&P)

     * * *
     3.2  SECURITY

     * * *
     3.3  REMEDIES

     * * *

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

7/1/05                               Page 11

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

<PAGE>

(SYNCHRONOSS TECHNOLOGIES INC. LOGO)

CONFIDENTIAL MATERIAL REDACTED AND FILED SEPARATELY WITH THE COMMISSION.

                                     Page 2

                                          (C) 2005 Synchronoss Technologies Inc.
                        Synchronoss Technologies, Inc Confidential & Proprietary

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00101-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00101-of-00352.parquet"}]]