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Exhibit 10.6

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No. 5763

MASTER AGREEMENT TO LEASE EQUIPMENT

     THIS
MASTER AGREEMENT TO LEASE EQUIPMENT (this “Agreement”) is entered into as of July 17,
2006 by and between CISCO SYSTEMS CAPITAL CORPORATION
(“Lessor”), having its principal place of
business at 170 West Tasman Drive, Mailstop SJC-I3, 3rd Floor, San Jose, California 95134 and
STARVOX COMMUNICATIONS, INC., a California (“Lessee”), having its principal place of business at
2728 Orchard Parkway, San Jose, CA 95134.

I. THE LEASE

     1.1 Lease of Equipment. In accordance with the terms and conditions of this Agreement,
Lessor shall lease to Lessee, and Lessee shall lease from Lessor, the personal property described
in the lease schedule(s) (each, a “Schedule”) to be entered into from time to time into which this
Agreement is incorporated (each Schedule, together with this
Agreement, a “Lease”), together with
all substitutions, replacements, repairs, parts and attachments, improvements and accessions
thereto (the “Equipment”). Capitalized terms not otherwise defined in this Agreement have the
meanings specified in the applicable Schedule. Each Lease shall constitute a separate, distinct,
and independent lease and contractual obligation of Lessee, Except as expressly set forth in any
Lease, Lessor shall at all times retain the full legal title to the Equipment, it being expressly
agreed by both parties that each Lease is an agreement of lease only.

     1.2 Equipment Procurement. Lessee has selected or will select Equipment to be procured from
Cisco Systems, Inc. or another manufacturer, reseller or vendor acceptable to Lessor (together,
“Vendor”). Lessee will notify Lessor in writing of its procurement or intent to procure such
Equipment and its request to enter into a Lease in respect of such Equipment. Upon Lessor’s
acceptance of the Equipment for purposes of any Lease, Lessee shall be deemed to have assigned to
Lessor all Lessee’s right, title and interest in and to the Equipment and any purchase order or
contract relating thereto; provided that Lessor shall have no obligation under such purchase order
or contract other than the obligation to pay the Vendor the purchase price of such Equipment.
Lessee shall execute and return to Lessor (i) each Schedule prepared by Lessor relating to any
Equipment within five days of Lessee’s receipt of same, and (ii) each Certificate of Acceptance
within five days of receipt and acceptance of the applicable Equipment. If for whatever reason the
lease transaction in respect of any Equipment is not consummated, Lessee shall be solely liable to
pay Vendor in accordance with the applicable purchase order or contract and shall indemnify and
hold Lessor harmless from any liability or payment incurred or made in connection therewith. In
such event, upon Lessor’s receipt of satisfactory evidence of such payment by Lessee, Lessor shall
assign to Lessee, without warranty, its right, title and interest in and to the Equipment and any
purchase order or contract relating thereto.

     1.3 Term of Lease. The Original Term of each Lease shall begin on the Commencement Date as
specified in the applicable Schedule and, subject to
Sections 3.5 and 4.2, shall terminate on the
date specified in the applicable Schedule. If so provided in the applicable Schedule, the Original
Term for any Lease may be succeeded by one or more Extended Terms. Subject to Sections 3.5 and 4.2
and any express provisions of the Schedule, no Lease may be terminated by Lessor or Lessee, for
any reason whatsoever, prior to the end of the Original Term or any pending Extended Term.

     1.4 Rental Payments. Lessee shall pay Lessor Rent for the Equipment in the amounts and at the
times specified in the applicable Schedule. All Rent and other amounts payable by Lessee to Lessor
hereunder shall be paid to Lessor at the address specified above, or at such other place as Lessor
may designate in writing to Lessee from time to time.

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     1.5 Return of Equipment. Upon expiration of the Lease Term, if the Equipment is not purchased
in accordance with the terms of the applicable Schedule, Lessee shall return the Equipment to
Lessor. Lessee shall ensure such returned Equipment is shipped to be received by Lessor: (a) no
later than fifteen (15) days after expiration of the Lease Term, and (b) in the condition and at
the location provided in Section 3.3.

II. DISCLAIMERS AND WARRANTIES; INTELLECTUAL PROPERTY

     2.1 Disclaimers; Warranties. Lessee represents and acknowledges that the Equipment is of a
size, design, capacity and manufacture selected by it, and that it is satisfied that the Equipment
is suitable for its purposes. LESSEE LEASES THE EQUIPMENT AS IS. AND. NOT BEING THE
MANUFACTURER OF THE EQUIPMENT. THE MANUFACTURER’S AGENT OR THE SELLER’S AGENT. LESSOR MAKES NO
WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, AS TO THE
MERCHANTABILITY, FITNESS FOR ANY
PARTICULAR PURPOSE, DESIGN OR CONDITION OF THE EQUIPMENT, LESSOR SHALL NOT BE RESPONSIBLE FOR ANY
LOSS OR DAMAGE RESULTING FROM THE INSTALLATION. OPERATION OR OTHER
USE, OR DEINSTALLATION OF THE
EQUIPMENT, INCLUDING ANY DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSS. Lessee
shall look solely to the manufacturer or the supplier of the Equipment for correction of any
problems that may arise with respect thereto, and all transferable manufacturer and supplier
warranty rights are, to the extent such rights have been transferred to Lessor, hereby assigned
without representation or warranty by Lessor to Lessee for the Lease Term, which warranties Lessee
is authorized to enforce if and when there exists no Event of Default. Any such enforcement shall
be at Lessee’s sole cost and expense.

     2.2
Intellectual Property. Lessee acknowledges that neither this Agreement nor any Lease
conveys any explicit or implicit license for the use of software or other intellectual property of
Cisco Systems, Inc. or its affiliates relating to the Equipment and that such license rights, to
the extent they exist, are contained in separate documentation entered into between Lessee and
Cisco Systems, Inc. or other persons. LESSOR MAKES NO WARRANTIES OR REPRESENTATIONS
WHATSOEVER WITH RESPECT TO THE INTELLECTUAL PROPERTY RIGHTS,
INCLUDING ANY PATENT, COPYRIGHT AND
TRADEMARK RIGHTS, OF ANY THIRD PARTY WITH RESPECT TO THE EQUIPMENT, WHETHER
RELATING TO INFRINGEMENT OR OTHERWISE. Lessor shall, when reasonably requested in writing by
Lessee, provided there exists no Event of Default and an indemnity satisfactory to Lessor is
delivered by Lessee, and at Lessee’s cost and expense, enforce rights of indemnification, if any,
for patent infringement obtained from the manufacturer under any agreement for purchase of the
Equipment. If notified promptly in writing of any action brought against Lessee based on a claim
that the Equipment infringes a patent right, Lessor shall promptly notify the manufacturer thereof
for purposes of exercising, for the benefit of Lessee, Lessor’s rights with respect to such claim
under any such agreement.

III. LESSEE OBLIGATIONS

     3.1 Net Lease; Payments Unconditional. EACH LEASE IS A NET LEASE, AND ALL COSTS, EXPENSES AND
LIABILITIES RELATING TO THE EQUIPMENT, INCLUDING IN RESPECT OF TAXES, INSURANCE AND MAINTENANCE,
SHALL BE BORNE SOLELY BY LESSEE. LESSEE’S OBLIGATION TO PAY ALL RENT AND OTHER SUMS THEREUNDER,
AND THE RIGHTS OF LESSOR IN AND TO SUCH PAYMENTS, SHALL BE ABSOLUTE AND UNCONDITIONAL, AND SHALL
NOT BE SUBJECT TO ANY ABATEMENT, REDUCTION, SETOFF,DEFENSE, COUNTERCLAIM,
INTERRUPTION, DEFERMENT OR RECOUPMENT, FOR ANY REASON WHATSOEVER.

     3.2 Use of Equipment. Lessee shall use the Equipment solely in the conduct of its business,
in a manner and for the use contemplated by the manufacturer thereof, and in compliance with all
laws, rules and regulations of every governmental authority having jurisdiction over the Equipment
or Lessee and with the provisions of all policies of insurance carried by Lessee pursuant to
Section 3.6.

     3.3 Delivery; Installation; Return; Maintenance and Repair; Inspection. Lessee shall be solely
responsible, at its own expense, for (a) the delivery of the Equipment to Lessee, (b) the packing,
rigging and delivery of the Equipment back to Lessor, upon expiration or termination of the Lease
Term, in good repair, condition and

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working order, ordinary wear and tear excepted, at the location(s) within the continental United
States specified by Lessor, and (c) the installation, de-installation, maintenance and repair of
the Equipment. During the Lease Term, Lessee shall ensure that the Equipment is covered by a
maintenance agreement, to the extent available, with the manufacturer of the Equipment or other
party reasonably acceptable to Lessor. Lessee shall, at its expense, keep the Equipment in good
repair, condition and working order, ordinary wear and tear excepted, and at the expiration or
termination of the Lease Term with respect to any of the Equipment, have such Equipment inspected
and certified acceptable for maintenance service by the manufacturer. If any of the Equipment,
upon its return to Lessor, is not in good repair, condition and working order, ordinary wear and
tear excepted, and so inspected and certified, Lessee shall be obligated to pay Lessor for the
out-of-pocket expenses Lessor incurs in bringing such Equipment up to such status, but not in
excess of the Casualty Value for such Equipment, promptly after its receipt of an invoice for such
expenses Lessor shall be entitled to inspect the Equipment at reasonable times after reasonable
notice.

     3.4 Taxes. Lessee shall pay, and hereby indemnifies. Lessor on a net, after-tax basis,
against, and shall hold it harmless from, all license fees, assessments, and sales; use, property,
excise and other taxes and charges, other than those measured by Lessor’s net income, now and
hereafter imposed by any governmental body or agency upon or with respect to any of the Equipment,
or the possession, ownership, use or operation thereof, or any Lease, or the consummation of the
transactions contemplated by any Lease. Notwithstanding the foregoing, to the extent required of it
by applicable law and in reliance upon Lessee’s disclosure of the location of such Equipment,
Lessor shall file personal property tax returns, and shall pay personal property taxes payable with
respect to the Equipment. Lessee shall pay to Lessor the amount of all such personal property taxes
within 15 days of its receipt of an invoice for such taxes, For any Lease that is specified as an
FMV Lease in the applicable Schedule, Lessee acknowledges that it is the intent of Lessor, and a
material inducement to Lessor to enter into such Lease, to obtain all state and Federal income tax
benefits of ownership with respect to the Equipment under such Lease, including entitlement to
annual accelerated cost recovery deductions; provided, that Lessee shall have no liability to
Lessor should Lessor fail to obtain such tax benefits.

     3.5
Loss of Equipment. Lessee,assumes the risk that, and shall promptly notify: Lessor in writing if, any item of Equipment becomes lost, stolen, damaged, destroyed or
otherwise unfit or unavailable for use from any cause whatsoever (an
“Event of Loss”) after it has
been delivered to a common carrier for shipment to Lessee. Unless the item is damaged and is
reparable within a reasonable period of time in the judgment of Lessor (in which event Lessee shall
promptly cause such item to be repaired and restored to the condition and value it had prior to
such Event of Loss, at its own cost and expense; provided that Lessee need not make such repair if
the cost thereof would exceed the Casualty Value of such item of Equipment in which case the item
of Equipment will be treated as having been destroyed), Lessee shall pay to Lessor on the Rent
payment date following Lessor’s receipt of such notice (or, if none, 30 days after such Event of
Loss), an amount equal to the Rent payment or payments due and payable with respect to such
Equipment on or prior to such date, plus a sum equal to the Casualty Value of such Equipment as of
such date. Upon making such payment, the Rent for such Equipment shall cease to accrue, the term of
the Lease as to such Equipment shall terminate and (except in the case of loss, unrecovered theft
or complete destruction) Lessor shall be entitled to recover possession of such Equipment in
accordance with the provisions of Section 3.3 above. If Lessor has received the foregoing amount,
Lessee shall be entitled to the proceeds of any recovery in respect of such Equipment from
insurance or otherwise, provided that if the Equipment is subject to an FMV Lease, Lessee shall be
entitled to receive such proceeds only up to the Casualty Value therefor, any excess amount to be
paid to Lessor.

     3.6 Insurance. Lessee shall obtain and maintain for the Lease Term at its own expense,
property damage and liability insurance and insurance against loss or damage to the Equipment as a
result of fire, explosion, theft, vandalism and such other risks of loss as are normally maintained
on equipment of the type leased hereunder by companies carrying on the business in which Lessee is
engaged, in such amounts, in such form and with such insurers as shall be satisfactory to Lessor.
Each insurance policy shall name Lessee as insured and Lessor and its assignees as additional
insureds and loss payees thereof as their interest may appear, and shall provide that it may not be
cancelled or altered without at least 30 days’ prior written notice thereof being given to Lessor
(or 10 days’, in the event of non-payment of premium).

     3.7 Indemnity. Except with respect to the gross negligence or willful misconduct of Lessor,
Lessee hereby indemnifies, protects, defends and holds harmless Lessor from and against any and all
claims, liabilities (including negligence, tort and strict liability), demands, actions, suits, and
proceedings, losses, costs, expenses and

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damages,
including reasonable attorneys’ fees and costs (collectively,
“Claims”), arising
out of, connected with, or resulting from any Lease or any of the Equipment, or any ancillary or
related software or other intangibles, whether arising before, during or after the Lease Term (but
not Claims relating to events occurring after Lessee has returned the Equipment to Lessor in
accordance with Section 3.3), including Claims relating to the manufacture, selection, purchase,
delivery, possession, condition, use, operation, return or other disposition of the Equipment.
Each of the parties shall give the other prompt written notice of any Claim of which it becomes
aware.

     3.8 Prohibitions Related to Lease and Equipment. Without the prior written consent of Lessor,
which consent as it pertains to clauses (b) and (d) below shall not be unreasonably withheld,
Lessee shall not:
(a) assign, transfer, or otherwise dispose of any Equipment, the Lease or any rights or obligations
thereunder;
(b) sublease any of the Equipment or permit the Equipment to be controlled by any other person; (c)
create or incur, or permit to exist, any security interest, lien or encumbrance with respect to any
of the Equipment; (d) cause or permit any of the Equipment to be moved from the location specified
in the applicable Schedule; or (e) cause or permit any of the Equipment to be moved outside the
United States.

     3.9 Identification. Lessee shall place and maintain permanent markings provided by Lessor on
the Equipment evidencing ownership, security and other interests therein, as specified from time to
time by Lessor.

     3.10 Alterations and Modifications. Lessee shall not make any additions, attachments,
alterations or improvements to the Equipment that cannot be removed without damaging the Equipment
without the prior written consent of Lessor, not to be unreasonably withheld. Any addition,
attachment, alteration or improvement to any item of Equipment shall belong to and become the
property of Lessor unless it is removed (without damage to the item of Equipment) prior to the
return of such item of Equipment by Lessee. Lessee shall be responsible for all costs relating to
such removal and shall restore such item of Equipment to the condition and value otherwise required
hereunder

     3.11 Personal Property. Lessee acknowledges and represents that the Equipment shall be and
remain personal property, notwithstanding the manner by which it may be attached or affixed to
realty, and Lessee shall do all acts and enter into all agreements necessary to ensure that the
Equipment remains personal property. If requested by Lessor with respect to any item of Equipment,
Lessee shall obtain and deliver to Lessor equipment access agreements, satisfactory to Lessor, from
all persons claiming any interest in the real property on which such item of Equipment is installed
or located

     3.12 Financial Statements. Lessee shall promptly furnish to Lessor such financial or other
statements regarding the condition and operations of Lessee and any guarantor of any Lease, and
information regarding the Equipment, as Lessor may from time to time reasonably request; provided
that, if such information is not publicly available, and if requested by Lessee, Lessor shall have
entered into a non-disclosure and confidentiality agreement reasonably satisfactory to Lessee prior
to receiving any such information.

     3.13 Lessee Representations. Lessee hereby represents that, with respect to this Agreement,
and each Schedule, certificate evidencing acceptance of equipment, assignment of purchase order,
insurance letter, proposal letter, UCC financing statement, or other document now or hereafter
executed by Lessee in connection with any Lease (collectively,
“Lease Documents”): (a) the
execution, delivery and performance thereof by Lessee or its attorney-in-fact have been duly
authorized by all necessary corporate, partnership or company action; (b) the person executing such
documents is duly authorized to do so; and (c) such documents constitute legal, valid and binding
obligations of Lessee, enforceable in accordance with their terms.

IV. DEFAULT AND REMEDIES

     4.1 Events of Default. The occurrence of any of the following shall constitute an
“Event of Default” hereunder and under each Lease: (a) Lessee fails to pay any Rent or other amount
due under any Lease within five days after it becomes due and payable; (b) any representation or
warranty of Lessee made in any Lease Document proves to have been false or misleading in any
material respect as of the date when it was made; (c) Lessee fails to maintain insurance as
required herein or breaches any of clauses (a), (b) or (e) of Section 3.8; (d) Lessee fails to
perform any other covenant, condition or agreement made by it under any Lease, and such failure
continues for 20 days; (e) bankruptcy, receivership, insolvency, reorganization, dissolution,
liquidation or other similar proceedings are instituted by or against Lessee, any guarantor of any
Lease or any partner of a partnership Lessee or guarantor,

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or all or any part of such person’s property, under the Federal Bankruptcy Code or other
law of the United States or of any other competent jurisdiction, and, if such proceeding is
brought against such person, it consents thereto or fails to cause the same to be discharged
within 45 days after it is filed; (f) Lessee materially defaults under any agreement with respect
to the purchase or installation of any of the Equipment; (g) Lessee or any guarantor of any Lease,
or any of their respective subsidiaries or other affiliates, defaults under any other instrument
or agreement with Lessor or Cisco Systems, Inc.; in a manner that permits such party to exercise
its remedies under such instrument or agreement: (h) with respect to Lessee or any guarantor of
any Lease, the occurrence of any of the following: (i) acquisition of beneficial ownership,
directly or indirectly, by any person or group (within the meaning of the Securities Exchange Act
of 1934 and the rules of the Securities and Exchange Commission thereunder as in effect on the
date hereof) of shares or other ownership interests representing more than 20% of the aggregate
voting power represented by the issued and outstanding voting stock of, or other evidence of an
ownership interest in, Lessee or such guarantor, or (ii) occupation of a majority of the seats
(other than vacant seats) on the Board of Directors of Lessee by persons who were neither (A)
nominated by the Board of Directors of Lessee or such guarantor, nor (B) appointed by directors so
nominated; provided, that neither (x) completion of the pending merger with U.S. Wireless Data,
Inc. nor (y) any private equity investment in Lessee completed prior to July 31, 2007, shall
constitute an Event of Default under this Section 4.1(h); or (i) there occurs a material adverse
change in the business, operations or financial condition of Lessee or any guarantor of any Lease,
or in the ability of Lessee or any guarantor of any Lease to perform or observe its respective
obligations under or in respect of any Lease or any other Lease Document.

     4.2 Remedies. If an Event of Default exists, Lessor may exercise any one or more of the
following remedies, in addition to those arising under applicable law: (a) proceed, by appropriate
court action, to enforce performance by Lessee of the applicable covenants of any or all of the
Leases; (b) terminate any or all Leases by notice to Lessee and take possession of any or all of
the Equipment and, for such purpose, enter upon any premises where the Equipment is located with
or without notice or process of law and free from all claims by Lessee or any other person, or
require Lessee to assemble the Equipment and deliver it to Lessor in accordance with Section 3.3;
(c) recover any and all direct damages, including all accrued and unpaid Rent and other amounts
owing under any Lease, and (i) for any Lease that is an FMV Lease, the Equipment for which has not
been returned to Lessor in the condition required hereunder, an amount equal to the Casualty Value
thereof; or (ii) for any Lease that is an FMV Lease, the Equipment for which has been so returned
to Lessor, such amounts as are provided for the lessee breach of a personal property lease under
the Uniform Commercial Code of the jurisdiction specified in
Section 5.11 (the “Code”), using the
Discount Rate to calculate present values for such purpose; or (iii) for any Lease that is not an
FMV Lease, an amount equal to the present value, discounted at the Discount Rate, of the sum of
all Rent and other payments remaining to be paid under such Lease through the Lease Term plus the
applicable purchase option amount specified in Paragraph 7 of the Schedule; and (d) sell or
re-lease any or all of the Equipment, through public or private sale or lease transactions, and
apply the proceeds thereof to Lessee’s obligations under such Leases or otherwise seek recovery in
accordance with applicable provisions of the Code. Lessee shall remain liable for any resulting
deficiency and Lessor may retain any surplus it may realize in connection with an FMV Lease. The
“Discount Rate” shall be the rate for U.S. Treasury obligations having a constant maturity of
three months, as specified in the Federal Reserve Statistical Release H.I5 (or replacement
publication) issued most recently prior to the date of termination of the Lease. Lessee shall pay
all costs and expenses (including reasonable attorneys’ fees) incurred by Lessor in retaking
possession of, and removing, storing, repairing, refurbishing and selling or leasing such
Equipment and enforcing any obligations of Lessee pursuant to any Lease.

V. MISCELLANEOUS

     5.1 Performance of Lessee’s Obligations. Upon Lessee’s failure to pay any amount or perform
any obligation under any Lease when due, Lessor shall have the right, but shall not be obligated,
to pay such sum or perform such obligation, whereupon such sum or cost of such performance shall
immediately become due and payable thereunder, with interest thereon at the Default Rate from the
date such payment or performance was made

     5.2 Right to Use. So long as no Event of Default exists, neither Lessor nor its assignee shall
interfere with Lessee’s right to use the Equipment under any Lease.

     5.3
Assignment by Lessor. Lessor may assign or transfer any or all of Lessor’s interest in
this Agreement, any Lease, any Equipment or Rents, without notice to Lessee. Any assignee of Lessor
shall have all of

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the rights, but none of the obligations (unless otherwise provided in the applicable assignment),
of a “Lessor” under this Agreement and the applicable Lease so long as Lessor retains such
obligations, and Lessee agrees that it will not assert against any assignee any defense,
counterclaim or offset that Lessee may have against Lessor or any preceding assignee, and that
upon notice of such assignment or transfer, it will pay all Rent and other sums due under this
Agreement and the applicable Lease to such assignee or transferee. Lessee acknowledges that any
assignment or transfer by Lessor shall not materially change Lessee’s duties or obligations under
this Agreement or any Lease, nor materially increase the burdens or risks imposed on Lessee.

     5.4 Further Assurances. Upon the request of Lessor from time to time, Lessee shall execute
and deliver such further documents and do such further acts as Lessor may reasonably request in
order fully to effect the purposes of this Agreement or any Lease. Lessee hereby appoints Lessor
its attorney in fact, coupled with an interest, authorized, without any obligation to do so, (a) to
sign on Lessee’s behalf and file, record and register financing statements, and amendments and
continuations thereof, and any other documents relating to liens, security interests or property
rights of Lessor, Lessee or any third person with respect to any Equipment and ancillary property,
in accordance with any Uniform Commercial Code or other code or statute, and (b) to enforce, in its
own name or in the name of Lessee, claims relating to any Equipment against insurers, manufacturers
or other persons, and to make, adjust, settle, compromise and receive payments as to such claims.

     5.5 Rights and Remedies. Each right and remedy granted to Lessor under any Lease shall be
cumulative and in addition to any other right or remedy existing in equity, at law, by virtue of
statute or otherwise, and may be exercised by Lessor from time to time concurrently or
independently and as often and in such order as Lessor may elect. Any failure or delay on the part
of Lessor in exercising any such right or remedy shall not operate as a waiver thereof.

     5.6 Notices. Any notice, request, demand, consent, approval or other communication provided
for or permitted in relation to any Lease shall be in writing and shall be conclusively deemed to
have been received by a party hereto on the day it is delivered to such party at its address, or
received by the party at such facsimile number, as is set forth in such Lease (or at such other
addresses or fax numbers such party shall specify to the other party in writing), or if sent by
registered or certified mail, return receipt requested, on the fifth day after the day on which it
is mailed, postage prepaid, addressed to such party.

     5.7 Section Headings; Interpretation. Section headings are inserted for convenience of
reference only and shall not affect any construction or interpretation of any Lease Document. In
interpreting the provisions of any Lease Document, (a) the term “including” is not limiting; (b)
references to “person” include individuals, corporations and other legal persons and entities; (c)
the singular of defined terms includes the plural and vice-versa; and (d) section and paragraph
references are to the document in which such reference appears, unless the context otherwise
requires.

     5.8 Entire Lease. This Agreement, together with the other Lease Documents, constitute the
entire agreement between Lessor and Lessee with respect to the lease of the Equipment. No waiver or
amendment of, or any consent with respect to, any provision of any Lease Document shall bind either
party unless set forth in a writing, specifying such waiver, consent, or amendment, signed by
both parties. TO THE EXTENT PERMITTED BY APPLICABLE LAW AND NOT OTHERWISE SPECIFICALLY
GRANTED TO LESSEE IN ANY LEASE DOCUMENT, LESSEE HEREBY WAIVES ANY AND ALL RIGHTS OR REMEDIES
CONFERRED UPON A LESSEE UNDER THE CODE OR ANY OTHER APPLICABLE LAW OR STATUTE, WITH RESPECT TO A
DEFAULT BY LESSOR UNDER THIS AGREEMENT OR ANY LEASE. Each FMV Lease is intended by the parties as a
“finance lease” under the Code.

     5.9 Severability. Should any provision of any Lease Document be or become invalid, illegal,
or unenforceable under applicable law, the other provisions of such Lease Document shall not be
affected and shall remain in full force and effect.

     5.10 Attorneys’ Fees; Default Interest; Maximum Rates.Lessee shall reimburse Lessor for
all charges, costs, expenses and attorney’s fees incurred by Lessor (a) in defending or protecting
its interests in the Equipment, (b) in the enforcement of this Agreement or any Lease, and (c) in
any lawsuit or other legal proceeding to which this Agreement or any Lease gives rise. Any
nonpayment of Rent or other amount payable under any Lease shall result in Lessee’s obligation to
promptly pay Lessor on such overdue payment, for the period of time

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during which it is overdue (including during any grace period), interest at a rate
(“Default Rate”) equal to fourteen percent (14%) per annum. To the extent that any payment of
interest (including any amount deemed imputed interest for purposes of applicable law) under any
Lease Document would otherwise exceed provisions of any law limiting the highest rate of interest
that may be lawfully contracted for, charged or received by Lessor, such payment amount shall be
deemed reduced to such amount as is equal to or consistent with the highest rate permitted by
applicable law.

     5.11 Governing Law and Jurisdiction. THIS AGREEMENT AND THE OTHER LEASE DOCUMENTS
SHALL BE GOVERNED IN ALL RESPECTS BY THE LAWS OF THE STATE OF CALIFORNIA. LESSOR AND LESSEE
WAIVE ALL RIGHTS TO TRIAL BY JURY IN ANY LITIGATION ARISING FROM ANY LEASE DOCUMENT.
LESSEE CONSENTS TO THE NON-EXCLUSIVE JURISDICTION OF THE STATE COURTS OF CALIFORNIA, AND THE
FEDERAL COURTS SITTING IN THE STATE OF CALIFORNIA, FOR THE RESOLUTION OF ANY DISPUTES UNDER ANY
LEASE DOCUMENT.

     5.12 Survival. All obligations of Lessee to make payments to Lessor under any Lease or
to indemnify Lessor, including pursuant to Section 3.4 or 3.7 above, with respect to a Lease, and
all rights of Lessor hereunder with respect to a Lease, shall survive the termination of such Lease
and the return of the Equipment.

     5.13 Security. To secure the payment and performance by Lessee of all obligations under each
Lease, Lessee hereby grants Lessor a security interest in Lessee’s right, title and interest, now
existing and hereafter arising, in and to, (a) all Equipment subject to such Lease, (b) all
insurance, warranty, rental and other claims and rights to payment and chattel paper arising out of
such Equipment, and (c) all books, records and proceeds relating to the foregoing.

     5.14 Counterparts; Chattel Paper. Each Lease Document may be executed in counterparts, and
when so executed each counterpart shall be deemed to be an original, and such counterparts together
shall constitute one and the same instrument. The original of each Schedule shall constitute
chattel paper for purposes of the Code. If there exist multiple originals of a Schedule, the one
marked “Lessor’s Copy” or words of similar import, shall be the only chattel paper.

     5.15 Appendix. Any lease Appendix executed by Lessor and Lessee making reference to this
Agreement is a part of and incorporated into this Agreement by this reference.

LESSEE, BY THE SIGNATURE BELOW OF ITS AUTHORIZED REPRESENTATIVE, ACKNOWLEDGES THAT IT HAS READ THIS
AGREEMENT, UNDERSTANDS IT, AND AGREES TO BE BOUND BY ITS TERMS AND CONDITIONS. EACH PERSON SIGNING
BELOW ON BEHALF OF LESSEE REPRESENTS THAT HE OR SHE IS AUTHORIZED TO EXECUTE AND DELIVER THIS
AGREEMENT ON BEHALF OF LESSEE.

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	LESSOR:	 	 	 	LESSEE:
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	CISCO SYSTEMS CAPITAL CORPORATION	 	STARVOX COMMUNICATIONS, INC.
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ Kelly Herrera
	 	 	 	By:
	 	/s/ Ken Wong	 	 	 	 	 	 
	 

	 	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	(Authorized Signature)
	 	 	 	 	 	(Authorized Signature)	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	Kelly Herrera	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	Operations Manager	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	Cisco System Capital
	 	 	 	 	 	KEN WONG CFO	 	 	 	 	 	 
	 	 	 	 	   
	 

	 	(Name/Title)
	 	 	 	 	 	(Name/Title)	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 	 	 	 	By:	 	 	 	 	 	 	 	 
	 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 	 	 	 	 	 	(Authorized Signature)	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	   
	 

	 	 	 	 	 	 	 	(Name/Title)	 	 	 	 	 	 

CISCO CONFIDENTIAL

 

 

SCHEDULE NO. 001-000

Master Agreement to Lease Equipment No. 5763

THIS SCHEDULE NO. 001-000(this “Schedule”) dated as of July 21, 2006 by and between CISCO
SYSTEMS CAPITAL CORPORATION (“Lessor”), having its principal place of business at 170 West Tasman
Drive, Mailstop SJC13/3, San Jose, California 95134, and StarVox Communications, Inc. (“Lessee”),
having its principal place of business at 2728 Orchard Parkway, San Jose, CA 9134 supplements that
certain Master Agreement to Lease Equipment No. 5763 (the “Agreement”, and together with this
Schedule, the “Lease”) between Lessor and Lessee, incorporated herein by this reference.
Capitalized terms not otherwise defined herein have the meanings specified in the Agreement.

1. EQUIPMENT DESCRIPTION. Quantity, manufacturer, and model of the Equipment subject to this
Schedule are as specified in Annex A hereto. Lessee acknowledges that complete and definitive
descriptive and location information regarding the Equipment may not be available at the time of
preparation of this Schedule and any Certificate of Acceptance and hereby irrevocably authorizes
Lessor, without any further action or agreement by Lessee, to modify or replace any annex to this
Schedule or any Certificate of Acceptance in order to supplement, correct or replace such
information, as Lessor may deem appropriate, to the extent necessary to accurately document the
Equipment information subject to the Schedule, and agrees to be bound thereby as though attached
hereto or thereto in such form at the time of Lessee’s execution of this Schedule or such
Certificate of Acceptance.

2. EQUIPMENT LOCATION. The Equipment shall at all times be installed or located at the location
specified in Annex A or in the applicable Certificate of Acceptance, or such other location as is
permitted under the Agreement.

3. EQUIPMENT COST. The “Equipment Cost” for any item of Equipment is the sum of (a) the equipment
purchase price specified in the invoice now or hereafter issued by the Vendor in relation to the
Equipment, plus (b) all insurance, installation, cabling, maintenance, software and related
expenses to the extent paid or financed by Lessor in its discretion (collectively, “Soft Costs”)
and as may be reflected in Annex A hereto. The aggregate Equipment Cost for all Equipment under
this Schedule is $2,326,484.10.

4. RENTAL PAYMENT AMOUNT. The Quarterly rental payment in respect of the Equipment (“Rent”) is
set forth below:

	 	 	 	 	 
	Payments

	 	Payment Amount

	1–12

	 	$	217,990.44	 

5. LEASE TERM. The “Lease Term” of this Lease shall begin on the Commencement Date and shall
consist of an “Original Term” equal to 36 months, and the Original Term shall automatically be
extended on a month-to-month basis (each, an “Extended Term”) unless either party notifies the
other not later than ninety (90) days prior to the end of the Original Term or, for any Extended
Term, thirty (30) days prior to the end of such Extended Term, of its election not to extend such
lease term or extended term; provided, however that if this Schedule provides for a $1.00 purchase
option, then this Schedule shall automatically end on the last day of the Original Term. The
“Commencement Date” of this Lease and the “Acceptance Date” of the Equipment shall be the earlier
to occur of the execution date specified in the certificate of acceptance, if any, delivered by
Lessee (“Certificate of Acceptance”) relating to the Equipment, or if the Equipment is delivered in
multiple shipments, relating to the last item of Equipment delivered to Lessee. Notwithstanding any
provision to the contrary contained in any Lease Document, Lessee shall be deemed to have
irrevocably accepted, for purposes of the Lease, the Equipment on the Commencement Date. Lessee
agrees to complete, sign and return to Lessor any Certificate of Acceptance sent to Lessee, within
five days of Lessee’s receipt and acceptance, or deemed acceptance, of the relevant Equipment, and,
if Lessee fails to do so, Lessee shall (i) be deemed to have accepted and ratified such Certificate
of Acceptance and (ii) be deemed to have authorized Lessor as attorney-in-fact, coupled with an
interest, to complete and sign the Certificate of Acceptance on behalf and in the name of Lessee.

6. RENT PAYMENTS. Rent for the Original Term shall be payable in 12 consecutive Quarterly payments
in advance, on the first day of each such period, commencing with the first day of the calendar
month immediately following the Commencement Date (unless the Commencement Date is the first day of
the month and rent is payable in advance, in which

CISCO CONFIDENTIAL

 

 

case the first Rent payment shall be due on such date). Lessor agrees that no Rent shall be
payable for any period prior to the Commencement Date or for the period from the Commencement Date
(provided such date is not the first day of the month) until, but not including, the first day of
the calendar month immediately following the Commencement Date. Unless otherwise agreed in writing
by the Lessor at such time, the Rent for any Extended Term shall be payable monthly, in advance,
and shall be an amount equivalent to that of the original Rent, adjusted, as applicable, for Soft
Costs.

7. END OF TERM PURCHASE OPTION PRICE. Lessee may or shall, as the case may be, purchase the
Equipment in accordance with the terms of Paragraph 8 for the following amount (as checked and
completed by Lessor):

	 	 	 	 	 	 	 
	 

	 	þ(a)
	 		$ 1.00	 
	 
	 	 	 	 	 	 
	 

	 	o(b)
	 	Fair Market Value (as defined in
Paragraph 8).

8. END OF TERM PURCHASE OPTION.

     (a) If option (b) is selected at Paragraph 7, this Lease shall be deemed an “FMV Lease”
and Lessee shall have an end of term purchase option as follows. (If no option is selected at
Paragraph 7, option (b) shall be deemed to apply.) Provided this Lease has not been terminated
earlier and there exists no Event of Default or event which with notice, lapse of time or both,
would be an Event of Default, not earlier than 90 days and not later than 30 days before the end of
the Original Term, Lessee may deliver to Lessor an irrevocable notice electing to purchase all (but
not less than all) of the Equipment at the end of the Original Term for an amount equal to the
amount specified in the provision selected (or deemed selected) in Paragraph 7, which amount Lessee
shall pay to Lessor on the last day of the Original Term. If no such notice is delivered by Lessee
to Lessor within such period, Lessee shall be deemed to have waived any right to purchase such
Equipment.

     (b) If option (a) of Paragraph 7 is selected, Lessee shall pay Lessor the amount specified in
such option on the last day of the Original Term.

7 (c) Upon full payment to it of the amount specified in clause (a) or (b) of this Paragraph 8,
Lessor shall transfer its right, title and interest in and to such Equipment to Lessee without
recourse or warranty, except that Lessor shall warrant that such Equipment is free and clear of
any lien or encumbrance arising by or through Lessor.

     (d) “Fair Market Value” shall mean the value which would be obtained in an arm’s-length
transaction between an informed and willing buyer-user (other than a lessee currently in
possession or a used equipment dealer) under no compulsion to buy, and an informed and willing
seller under no compulsion to sell and, in such determination, costs of removal from the location
of current use shall not be a deduction from such value. Fair Market Value shall be determined by
the mutual agreement of Lessor and Lessee in accordance with the preceding sentence or, if Lessee
and Lessor cannot agree within 20 days after Lessee’s notice of election to purchase under clause
(a) of this Paragraph 8, by a qualified independent equipment appraiser mutually acceptable to
Lessor and Lessee with the cost to be split equally between Lessor and Lessee.

9. CASUALTY VALUE. The Casualty Value of the Equipment shall at any time be the greater of (a) Fair
Market Value at such time; or (b) as of the date of shipment from the Vendor, 110% of Equipment
Cost, such amount to decrease from month to month thereafter by 1.69% of Equipment Cost.

CISCO CONFIDENTIAL

 

 

IN WITNESS WHEREOF, Lessor and Lessee have caused this Schedule to be duly executed by
their authorized representatives as of the date first above written. Each signatory of the
Lessee represents that he or she is authorized to execute and deliver this Schedule on behalf of
Lessee.

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Cisco System Capital Corporation, Lessor	 	 	 	StarVox Communications, Inc., Lessee
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ Kelly Herrera
	 	 	 	By:
	 	/s/ Ken Wong	 	 	 	 	 	 
	 

	 	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Print Name:

	 	Kelly Herrera
	 	 	 	Print Name:
	 	 KEN WONG	 	 	 	 	 	 
	 

	 	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 		 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	Operations Manager	 	 	 	 	 	 	 	 	 	 	 	 
	Title:

	 	Cisco Systems Capital	 	 	 	Title:
	 	CFO	 	 	 	 	 	 
	 

	 	 
	 	 	 	 	 	 	 	 	 	 	 	 

CISCO CONFIDENTIAL

 

 

CERTIFICATE OF ACCEPTANCE

THIS CERTIFICATE OF ACCEPTANCE (this “Acceptance Certificate”) UNDER SCHEDULE NO. 001-000, DATED
AS OF JULY 21, 2006 TO MASTER AGREEMENT TO LEASE EQUIPMENT NO. 5763, DATED AS OF JULY 17, 2006, IS
BETWEEN Cisco Systems Capital Corporation, Lessor, and StarVox Communications, Inc., Lessee.

     This Acceptance Certificate is issued pursuant to the Master Agreement to Lease Equipment
(“Master Agreement”) and Schedule (“Schedule” and, together with the Master Agreement, the
“Lease”) designated above. Unless otherwise set forth herein, the terms used in this Acceptance
Certificate shall have the same meanings defined in such Lease. Annex A, attached hereto, has been
delivered to and accepted by Lessee as of the date of signature below for purposes of the Lease.
Except as expressly set forth otherwise in the Lease, the Commencement Date shall be the execution
date of this Acceptance Certificate.

     Lessee confirms and agrees that (i) no Event of Default under any Lease entered info pursuant
to the Master Agreement has occurred and is continuing, and (ii) the representations and warranties
in the Lease, if any, are correct and complete as though made on and as of the date hereof and
shall continue to be correct and complete throughout the Lease Term of each item of Equipment
accepted hereby.

     The person signing this Acceptance Certificate on behalf of Lessee hereby certifies that such
person has read and acknowledges all terms and conditions of the Lease, and is duly authorized to
execute this Acceptance Certificate on behalf of Lessee. This Acceptance Certificate shall be
executed by Lessee and promptly returned to Lessor.

	 	 	 	 	 	 	 
	 	 	StarVox Communications, Inc., Lessee
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Tom Rowley	 	 
	 

	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 

	 	Title:
	 	CRO	 	 
	 

	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	 

	 	Acceptance Date:  12/7/06exv10w7

 

Exhibit 10.7

     This Wholesale Master Service Agreement is effective this 25 day of April, 2005
(“Effective Date”, by and between WilTel Communications, LLC, located at One Technology
Center, 100 South Cincinnati, 13th Floor, Tulsa, Oklahoma 74103, a Delaware limited
liability company (“WilTel”), and StarVox Communications, Inc., located at 150 Horseshoe
Bend, Fairview, Texas 75069-8700, a Texas corporation (“Customer”).

     1. Services. Subject to the Customer placing orders and WilTel accepting such orders
as contemplated herein, Customer agrees to purchase, and WilTel agrees to provide, the services
described in the attached service schedule(s) (“Service Schedule(s)”) as indicated in
Appendix A (check as applicable) (the “WilTel Services”), and Third Party Service described
in Section 17 (WilTel Services and Third Party Service, collectively or individually, the
“Services”). WilTel Services may consist of any combination of WilTel’s voice products
and/or data products (each referred to as “Network Services”), and/or professional
services. All Services shall be provided according to the terms and conditions in this WMSA
(defined below) and as specified in an accepted order for Services placed by Customer
contemporaneously herewith, subsequent hereto or in contemplation hereof (“Service
Order(s)”). This Wholesale Master Services Agreement (“WMSA” or “Agreement”)
is comprised of the general terms and conditions contained in Sections 1 through 22 herein (the
“General Terms”) together with any appendices, Service Schedules and Service Orders
attached or incorporated by reference, and the foregoing shall be deemed one, integrated agreement
and not as separate, severable contracts. The Service Schedules may be attached hereto, separately
executed, or added by amendment. All Services are subject to availability and approval of
Customer’s credit by WilTel at the time of each Service Order.

     2. WMSA Term. The WMSA (referring not to individual Services, which will each have
their own term as described in Section 3 below) shall continue in effect for three (3) years from
the Effective Date (“WMSA Term”) and shall then automatically renew for successive one (1)
year periods (“WMSA Renewal Term(s)”), unless either party gives written notice to the
other party of non-renewal, such notice to be delivered at least sixty (60) calendar days before
the end of the WMSA Term or the WMSA Renewal Term. Notwithstanding the prior sentence, unless
Customer is in Default, any Service being provided at the time of termination of this WMSA shall
continue upon the terms and conditions of this WMSA until the end of the Service Term or any
applicable Extension Period for Service as specified in the applicable Service Order or until such
Service Order is terminated; provided, however, that Customer may not order any new Service until
Customer and WilTel have entered into a new agreement or mutually agreed in writing to extend this
WMSA.

     3. Service Term. The term for each Service as described in a Service Order shall be
as indicated on the Service Order (“Service Order”). At the end of the Service Term for
any Service, such Service shall continue on a month-to-month basis (“Extension Period”)
unless either party gives written notice to the other that the Services) shall be disconnected,
such notice to be delivered at least sixty (60) calendar days before the end of the Service Term,
or if during the Extension Period, then upon at least thirty (30) calendar days’ prior written
notice. Notwithstanding the foregoing, if Customer disconnects Service and Customer has ordered
its own local access service, Customer must provide WilTel written notification of Customer’s
disconnect with the local access service provider in the form of a disconnection firm order
commitment (“DFOC”) from the local access service provider.

-1-

 

     4. Payment Terms and Charges. Customer agrees to pay recurring and non-recurring
charges for WilTel Services, as set forth in applicable Service Order and/or quote “Quote”)
referenced in such Service Order and all charges for Third Party Services, if applicable. WilTel
provides and charges for Services in U.S. Dollars, commencing on the date WilTel notifies Customer
that the relevant Service is available for use by Customer. Subject to Section 5 below, all
amounts stated on each invoice are due and payable within ten (10) calendar days of the date of the
invoice, except with respect to Services related to voice products, which shall be due and payable
immediately upon receipt of the invoice (“Due Date”). Customer agrees to accept delivery
of invoices electronically via the Internet and agrees to remit payment via Automated Clearinghouse
(“ACH”) or wire transfer to WilTel Communications, LLC to the account indicated on
Customer’s invoice. In the event Customer fails to make full payment of undisputed amounts by the
Due Date, Customer shall also pay a late fee in the amount of the lesser of (i) [one and one-half
percent (11/2%)] per month or (ii) the maximum lawful monthly rate under applicable state law, of the
unpaid balance which amount shall accrue from the Due Date (“Late Fee”). WilTel may make
billing adjustments for WilTel Services for a period of one hundred eighty (180) calendar days
after the date a Service is rendered, and for Third Party Services at any time within two (2)
months of WilTel’s receipt of any invoice from the Third Party Provider (defined in Section 17
below), or any other time frame allowed by contract, law, or government rule or regulation,
whichever is later. WilTel will invoice Customer for any billing adjustments and Customer agrees
to pay such amounts in accordance with this Section.

     5. Billing Disputes. (a) Upon disputing any charges, Customer shall: (i) pay all
undisputed charges by the Due Date; (ii) present by the Due Date a written statement of amounts
disputed in good faith in reasonable detail with supporting documentation; and, (iii) negotiate in
good faith to resolve any bone fide dispute within sixty (60) calendar days from the Due Date. (b)
Disputed charges resolved in favor of WilTel, with a Late Fee, are due and payable within ten (10)
calendar days of WilTel’s written notice denying the dispute, which shall be the Due Date for such
payment. Disputed charges resolved in favor of Customer will be credited to Customer on the
following month’s billing cycle and no Late Fees shall apply.

     6. Right to Assurance. If a Customer suffers a material adverse change in its
financial condition, and/or if at any time during the Term or Renewal Term the value of Services
ordered by and/or delivered to Customer meets or exceeds Customer’s established credit limit(s),
WilTel may: (i) require initial or additional financial information; (ii) request adequate
assurance of Customer’s performance per applicable law, (iii) require adjustments to Customer’s
payment terms and/or (iv) decline to accept or process a Service Order.

     7. Credit Default. A “Credit Default” shall occur (i) if Customer fails to
make full and timely payment for all amounts due (subject to Section 5 herein governing billing
disputes) and/or (ii) if Customer falls to comply with a request for assurance as provided in
Section 6. In the event of a Credit Default, WilTel may, in addition to its rights available to it
at law or in equity: (i) suspend any or all Services to Customer upon written notice; (ii) cease
accepting or processing Service Orders; and/or (iii) terminate this WMSA upon written notice. If
this WMSA is terminated because of a Credit Default, all Early Termination Charges (defined in
Section 19 below) shall apply.

-2-

 

     8. Other Defaults, AUP Violation and Remedies. An “Other Default” shall occur
if either party fails to perform or observe any material term or obligation, excluding payment or
right of assurance terms, contained in this WMSA, and any such failure remains uncorrected for the
lesser of thirty (30) calendar days after written notice from the non-defaulting party or such
different cure period, if any, as may be set forth below. In the event of an Other Default by
Customer, WilTel may, in addition to its rights available to it at law or in equity: (i) suspend
any or all Services to Customer; (ii) cease accepting or processing Service Orders; and/or (iii)
terminate this WMSA. If this WMSA is terminated because of an Other Default by Customer, all Early
Termination Charges shall apply. In the event of an Other Default by WilTel, Customer’s remedies
are limited to its proven direct damages and the right to terminate any or all affected Service
Orders, unless this WMSA provides for exclusive remedies in the applicable Service Schedule, in
which case Customer’s remedies are exclusively as described therein. If Customer uses the Services
for any unlawful purpose or in any unlawful manner, or causes WilTel to violate any applicable law,
such action shall be an Other Default and WilTel shall have the right immediately to suspend and/or
terminate any or all Services hereunder without notice to Customer. Customer affirms that it has
reviewed and assented to the Acceptable Use Policy (“AUP”) posted on WilTel’s AUP website
at www.wiltel.com/customers/r.use_s.html, which is incorporated herein by reference. A violation
of the AUP shall be an Other Default if the violation of the AUP affects WilTel’s network, or other
parties on WilTel’s network, WilTel shall have the right immediately to suspend and/or terminate
any or all Services hereunder and/or the WMSA without notice to Customer. For any violations of
WilTel’s AUP that are not affecting either WilTel’s network or third parties on WilTel’s network,
Customer shall, upon three (3) business days notice, have the opportunity to cure such violation
prior to suspension or termination. For the purposes of this WMSA, a Credit Default and/or an
Other Default may each be referred to individually as a “Default”.

     9. Taxes and USF Charges. (a) If any local, state, national, international, public or
quasi-public governmental entity or foreign government or its political subdivision imposes any
taxes (excluding taxes based on WilTel’s net income or capital or any property taxes), fees,
surcharges, or other charges or impositions on WilTel as a result of WilTel’s sale of Services or
Customer’s use of Services, Customer shall pay any such impositions (“Additional Charges”)
and indemnify WilTel from any liability or expense associated with the Additional Charges. (b) In
addition, if Additional Charges are assessable to support the federal Universal Service Fund
(“USF”) or any similar local, state, national, international, or foreign fund, WilTel may
elect to calculate and charge Customer in accordance with applicable regulations of the government
authority having jurisdiction (“USF Charges”), unless Customer is paying such Additional
Charges directly or is otherwise exempt (as indicated by Customer in Appendix B). To the extent
USF Charges apply to Services, Customer shall also pay WilTel an administrative fee equal to [one
percent (1%)] of the total WilTel charges for such Services.

     10. Indemnity. (a) Customer and WilTel will release, defend, indemnify and hold
harmless the other from and against any loss, debt, liability, damage, obligation, claim, demand,
judgment or settlement of any nature or kind, known or unknown, liquidated or unliquidated, of any
third party, including without limitation all reasonable costs and expenses, such as reasonable
litigation costs and attorneys’ fees (“Claim”), relating to damage to tangible property or
bodily injury, or wrongful death, to the extent such Claim rises out of the negligence or willful
misconduct of the respective indemnifying party, its employees, agents, or contractors in
connection with this

-3-

 

WMSA or the provision of Services hereunder. (b) Customer will release, defend, indemnify and
hold harmless WilTel and its officers, directors, employees, contractors and agents from and
against any Claim to the extent such Claim (i) is brought by a downstream customer of Customer or
an end user and arises out of an alleged defect in or failure of Service, or (ii) arises out of
failure by Customer or downstream customers of Customer or end users to obtain approval, consent,
or authorization relating to the content transmitted over WilTel’s network, including without
limitation claims relating to any violation of copyright tow, export control laws, or that such
transmissions are libelous, slanderous, an invasion of privacy or illegal.

     11. Limitation of Liability. EXCEPT TO THE EXTENT A PARTY IS REQUIRED TO INDEMNIFY
THE OTHER PARTY HEREUNDER, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT,
CONSEQUENTIAL, SPECIAL, INCIDENTAL, PUNITIVE OR SIMILAR DAMAGES, INCLUDING BUT NOT LIMITED TO LOST
PROFITS, ARISING OUT OF OR IN CONNECTION WITH SUCH PARTY’S PERFORMANCE OF OR FAILURE TO PERFORM ITS
OBLIGATIONS HEREUNDER, EVEN IF THAT PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE OR
LOSS.

     12. Warranties and Disclaimer of Warranty. WILTEL’S WARRANTY WITH RESPECT TO ANY
SERVICE, IF ANY, IS SET FORTH ON THE APPLICABLE SERVICE SCHEDULE. WILTEL DISCLAIMS ALL OTHER
WARRANTIES WHETHER EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. WILTEL MAKES NO WARRANTY
WITH RESPECT TO ANY THIRD PARTY SERVICES.

     13. Compliance with Law. Customer’s use of the Services and WilTel’s provision of the
Services shall be in accordance, and comply, with all applicable laws, regulations, and rules.
Customer shall obtain all approvals, consents and authorizations necessary to conduct its business
and initiate or conduct any transmissions over any facilities covered by this WMSA. WilTel shall
obtain all approvals, consents and authorizations necessary to conduct its business and to provide
the Services covered by this WMSA. Customer and WilTel will release, defend, indemnify and hold
harmless the other from and against any Claim arising out of, resulting from or based upon the
indemnifying party’s violation of any law, rule or regulation.

     14. Force Majeure. Either party may adjust or suspend its performance (other than the
obligation to make payment) to the extent performance is beyond its reasonable control for reasons
including, without limitation, acts of God, fire, explosion, atmospheric conditions such as rain
fade, cable cut caused by a third party, governmental action, national emergencies, war, riot,
insurrection, terrorism, vandalism, or labor difficulties such as work stoppages, strikes, or
lockouts. If the force majeure event continues for a period of thirty (30) calendar days, then
cither party may, without incurring liability, terminate the affected Services or circuits, except
for Customer’s liability for any Charges of a Third Party Provider.

     15. Proprietary Information. Except as required by law or stock exchange rule, the
terms and conditions of this WMSA and all proprietary information exchanged by the parties and all

-4-

 

documents referenced herein (including invoices) are confidential and shall not be disclosed
without prior written consent of the other party.

     16. Interstate Service Representation. WilTel and its Affiliates (defined in Section
21 below) shall not be obligated to make available intrastate Service, e.g., any Service on a
circuit which originates/terminates at points both of which are situated within a single state,
unless WilTel or its Affiliates specifically offer an intrastate Service, or an information Service
as defined in 47 U.S.C. Section 153(20) or unless Customer represents in writing that such Service
(other than switched voice services) or circuit shall be used to carry more than ten percent (10%)
interstate or foreign telecommunications traffic. Customer hereby represents that more than ten
percent (10%) of the transmissions on each circuit shall be interstate transmissions or foreign
transmissions as those terms are defined in 47 U.S.C. Sections 153(17) and 153(22). If it is
determined at any time that such Service or circuit is subject to regulation by a U.S. State
regulatory agency, the Service or circuit may be provided by WilTel or its Affiliates pursuant to
applicable state laws, regulations and applicable tariffs, or WilTel and its Affiliates may
discontinue provision of the affected Service or circuit.

     17. Third Party Services. In conjunction with WilTel Service, WilTel may, upon
Customer’s request, arrange for Service to be provided by a third party (“Third Party
Service”), such as local access service, interchange service, or international service. WilTel
shall not be obligated to provision any Third Party Service except in connection with a Service
Order for WilTel Service. In the event Customer requests that WilTel order Third Party Service,
WilTel shall provision and coordinate the installation of such Service and conduct the initial
testing of an interconnection between the WilTel Service and Third Party Service. WilTel will not
begin billing Customer for such Third Party Service until related WilTel Service is available.
Customer may be required to execute a letter of authorization (“LOA”). In a form provided
by WilTel, authorizing WilTel to deliver such Third Party Service to Customer’s location. When
Customer requests international service, WilTel may arrange for the foreign end of the Service or
for a portion of the foreign end of the Service to be provided by a third party carrier licensed in
the relevant foreign point. In some cases, WilTel may be unable, and Customer may be required, to
arrange the foreign end of such Service with a foreign carrier. Although this WMSA governs the
terms of WilTel’s arrangement of Third Party Service, service level parameters and related
warranties (if any), surcharges, outage credits, required commitments, termination liability,
limitations, and other service specific terms of the Third Party Service shall be those of the
provider of the Third Party Service (“Third Party Provider”). All charges incurred by
WilTel for such Third Party Service, including without limitation monthly recurring charges,
installation charges, non-recurring charges, and applicable termination/cancellation charges of the
Third Party Provider, shall be invoiced to Customer and Customer shall be responsible for payment
thereof.

     18. Customer Ordered Local Access Service. Customer may order its own local access
services from a local access provider who has established entrance facilities in a WilTel point of
presence upon receipt of a LOA or letter of authorization/carrier facility assignment
(“LOA/CFA”). Customer may order its own local access service with a vendor who does not
have established entrance facilities within WilTel’s point of presence only with WilTel’s written
permission. Customer’s local access provider shall directly bill Customer for such local access
service. Customer shall ensure that Customer-ordered local access service is available at the same
time as the

-5-

 

WilTel Service and shall be obligated to pay for WilTel Service regardless of whether
Customer-ordered local access service is available.

     19. Early Termination. Customer may disconnect any WilTel Service after installation
by providing written notification to WilTel sixty (60) calendar days in advance of the effective
date of the disconnection and paying to WilTel an “Early Termination Charge” in an amount
equal to: (i) the recurring charges associated with the Service Term less any recurring charges
already paid, (ii) any non-recurring charges not yet paid by Customer, (iii) installation charges
discounted or waived at the time Service was installed, (iv) any termination liability associated
with Third Party Services, and (v) the balance of any minimum commitments by Customer required
under this WMSA, if applicable. If Customer terminates any WilTel Service during an Extension
Period as provided in Section 3 above, Customer shall only be responsible for any non-recurring
charges not yet paid by Customer together with termination liability associated with Third Party
Services. It is the express intent and understanding of the parties that, this WMSA and all
Service Orders hereunder being one integrated agreement and not separate, severable contracts,
Customer’s right to early termination of any Service is not a right to “reject”, on an individual
basis, any Service or any Service Order pursuant to federal bankruptcy laws. In the event Customer
orders its own local access service, Customer’s written disconnection notice must also include a
DFOC from the local access service provider as described in Section 3.

     20. Publicity. The parties contemplate and agree that publication of information
surrounding this WMSA may occur through press releases, articles, interviews, marketing materials,
online materials, and/or speeches (“Publicity”). Both parties must approve the content of
any such Publicity prior to its publication, which approval shall not be unreasonably withheld.
Routine references to the fact that Customer is a customer of WilTel including advising others of
Customer’s presence in a WilTel POP and the general nature of Services that Customer purchases
under this WMSA are not considered Publicity for purposes of this section, and Customer and WilTel
each authorize the other, during the WMSA Term, to make such references unless otherwise specified
in a Service Schedule.

     21. Miscellaneous. (a) Neither party shall assign or otherwise transfer its rights or
obligations under this WMSA without the prior written consent of the other party, which shall not
be unreasonably withheld; provided, however, either party may freely assign this WMSA, upon notice
to the other party, to (i) an “Affiliate” (defined as an entity that controls, is
controlled by or is under common control), or (ii) in the event of a sale of all or substantially
all of its assets, to the purchaser of those assets, or (iii) in the event of a merger, acquisition
or recapitalization of the assigning party, to the surviving entity (the sale of assets, merger,
acquisition or recapitalization to be referred to as a “Change of Control”). For the
purposes of this Section, “control” means to have more than a fifty percent (50%) ownership
interest. In the event of an assignment by Customer to an Affiliate, the acquiring or surviving
entity or assignee (as applicable) must be at least as creditworthy as Customer and no such
assignment will release Customer from Customer’s obligations herein, including, but not limited to
payment, except to the extent that the acquiring or surviving entity or assignee meets its
obligations under this WMSA. (b) This WMSA shall be governed by the laws of the State of New York
without regard to choice of law principles. (c) No rule of construction requiring interpretation
against the draftsman hereof shall apply in the interpretation of this WMSA. (d) The provisions of
this WMSA are only for the benefit of the parties hereto, and no third party may seek

-6-

 

to enforce or benefit from these provisions. (e) If any term or provision of this WMSA shall,
to any extent, be determined to be invalid or unenforceable by a court or body of competent
jurisdiction, then (i) both parties shall be relieved of all obligations arising under such
provision and this WMSA shall be deemed amended by modifying such provision to the extent necessary
to make it valid and enforceable while preserving its intent, and (ii) the remainder of this WMSA
shall be valid and enforceable. (f) The failure of either party to enforce any provision hereof
shall not constitute the permanent waiver of such provision. (g) No termination of this WMSA shall
affect the rights or obligations of either party: (i) with respect to any payment for Services
rendered before termination; or (ii) pursuant to other provisions of this WMSA that, by their sense
and context, are intended to survive termination of this WMSA, including without limitation,
indemnification, confidentiality and limitation of liability. (h) This WMSA, including the General
Terms and appurtenant appendices, Service Schedules and Service Orders (including Quotes referenced
therein), any applicable tariff and WilTel’s AUP Website; comprise all of the terms and conditions
of the agreement between the parties relating to the Services and constitute the complete and
exclusive statement of the understanding between the parties and supersedes all proposals and prior
agreements (oral or written) between the parties relating to Services provided hereunder. (i)
Customer acknowledges that the provisioning of interstate telecommunications services by WilTel to
Customer is contingent upon Customer’s submission to WilTel of the representation in the form set
forth in Appendix B to this WMSA; either that Customer has properly registered with the Federal
Communications Commission (“FCC”), pursuant to 47 CPR 64.1195 (and WilTel’s confirmation of
the same), or that Customer is not fit telecommunications carrier subject to the FCC’s registration
requirements. (j) Without in any way diminishing the nature of these General Terms, appurtenant
appendices, Service Schedules and Service Orders as one, integrated, non-severable agreement, in
the event of any inconsistency between or among a Service Order or Quote referenced therein, a
Service Schedule, the General Terms, WilTel’s AUP website, and/or any applicable tariff, the
following order of precedence shall prevail (from highest priority to lowest): the applicable
tariff, if any, specific pricing contained in a Service Order or Quote referenced therein, the
provisions contained in the applicable Service Schedule, these General Terms, WilTel’s AUP website,
the applicable Service Order and the Quote referenced therein (except pricing). (k) In the event
of a Default, the prevailing party shall have the right to recover its reasonable expenses
(including attorney and collection agency fees) incurred in the enforcement of its rights under the
WMSA. (l) This WMSA may be executed in one or more counterparts each of which shall be deemed an
original, but all of which together shall constitute one and the same WMSA. (m) Facsimile
signatures to this WMSA shall be deemed to be binding upon the parties.

     22. Authorized Representatives. The individuals named below who are executing this
WMSA on behalf of the parties are duly authorized to make the representations contained herein.

	 	 	 
	STARVOX COMMUNICATIONS, INC.:

	 	WILTEL COMMUNICATIONS, LLC:
	 
	 	 
	By: /s/James S. Holden

	 	By: /s/Shaun Andrews
	 
	 	 
	Print Name: James S. Holden

	 	Print Name: Shaun Andrews
	 
	 	 
	Title: President/GM

	 	Title: Director
	 
	 	 
	Date: 4/4/05

	 	Date:

-7-

 

Appendix B

Federal Universal Service Fund/Attestation of Customer Status Form

     WilTel’s determination regarding application of the Federal Universal Service Fund
(“USF”) surcharge on the Service noted herein will be based upon the representations and
information provided in this attestation form. This attestation form also allows WilTel to fulfill
its obligation to verify that its customers have either filed Federal Communications Commission
(“FCC”) Form 499-A or are not subject to that filing requirement.

Customer is:

     o End useri – A U.S. based Customer purchasing Services for its own internal use and
not for resale.

     þ ISP – A U.S. based information services provider (“ISP”) or non-common carrier
telecommunications provider that is not making its own USF contributions and is not required under
FCC rules to file an FCC Form 499-A with the FCC.

     o Carrier – A telecommunications carrierii (including a reseller) that is using the
Service to provide telecommunications serviceiii to the public for a fee, and Customer:

	 	o	 	Will resell the Service in the form of telecommunications and will contribute
directly to the Universal Service Administrator pursuant to FCC rules.
Customer’s FCC Filer ID Number (6 digits beginning with “8”)                     
	 
	 	o	 	Will use the Service to provide services for which all revenues are from
non-domestic (i.e., non-U.S.iv) end users, and Customer is not
required under FCC rules to file an FCC Form 499-A with the FCC.
	 
	 	o	 	Qualifies for the de minimis exemption under FCC rulesv, has met
it obligation to file a FCC Form 499A, and is not making direct contributions
to USF but is making direct contributions to: o LNP o TRS o NANPA
(please mark all that apply).
	 
	 	 	 	Customer’s FCC Filer ID Number (6 digits beginning with “8”)                     

 

			
	i	 	A customer obtaining service for use in its
own broadcast operations is an end user.
	 
	ii	 	“The term ‘telecommunications
carrier’ means any provider of telecommunications services, except that
such term does not include aggregators of telecommunications services.”
47 U.S.C. § 153(44).
	 
	iii	 	“The term ‘telecommunications
service’ means the offering of telecommunications for a fee directly to
the public, or to such classes of users as to be effectively available directly
to the public, regardless of the facilities used.” 47 U.S.C §
153(46). “The term ‘telecommunications’ means the
transmission, between or among points specified by the user, of information of
the user’s choosing, without change in the form or content of the
information as sent and received.” 47 U.S.C. § 153(43).
	 
	iv	 	“US.” and “United
States” means the United States of America, its possessions, territories.
states, districts, and commonwealths, including, without limitation, Guam,
Puerto Rico, and the U.S. Virgin Islands.
	 
	v	 	47 CFR § 54.708.

-1-

 

     o International End User or ISP –A non-U.S. basedvi end user, information services
provider or non-common carrier. To qualify as a non-U.S. end user, Customer must (1) not be a
citizen or permanent resident of the U.S. if an individual and, if a legal entity, not be created
under the laws of the United States, (2) not be qualified to transact business in the U.S. (e.g.,
through registration with a state secretary of state as a foreign company), (3) have a billing
address outside the U.S.vii, and (4) not use the service for communications that both
originate and terminate within the U.S.

     Customer understands that if it designates that it is acting as a “telecommunications carrier,
not contributing” under the de minimis exemption, a “domestic end user,” a “domestic information
service provider,” or “domestic non-common carrier,” WilTel will apply the USF surcharges to the
appropriate revenues from the Service and charge them to Customer along with any applicable
administrative surcharge set forth in the written Agreement.

     WilTel is relying upon the information provided by Customer in this representation and any
subsequent amendments to determine whether USF surcharges and administrative surcharges apply. If
the information contained herein is determined to be incorrect or if it changes, Customer shall pay
any applicable surcharges for any Service WilTel had provided or that it subsequently provides, in
each case together with late-payment interest and any Customer indemnity obligation or other
liability as set forth in the Agreement. If there is no applicable written Agreement between
Customer and WilTel, WilTel’s standard Agreement form in effect at the time the Service Order is
placed will apply. If, at any time, Customer’s representation above is no longer accurate,
Customer shall notify WilTel within thirty (30) calendar days by completing and submitting a new
representation to WilTel at the address set forth on page 1 of the Agreement.

 

			
	vi	 	See footnote iii.
	 
	vii	 	WilTel will waive this requirement if
Customer demonstrates that use of a U.S. billing address is solely to
facilitate payment by an agent acting on Customer’s behalf. Such waiver
must be in writing to be effective.

-2-

 

    WilTel
    Agreement
No.                      

 

    AMENDMENT
    1

    To WilTel Global Voice Services Agreement

 

    This Amendment 1 (“Amendment”) is made and
    entered into July 19, 2005 (“Effective
    Date”), by and between WilTel Global Voice Services, a
    division of WilTel Communications, LLC (“WGVS”), and
    StarVox Communications, Inc. (as successor in interest to New
    Global Telecom, Inc.) (“Supplier”).

 

    WHEREAS, Supplier and WilTel Communications, LLC
    (“WilTel”) are parties to that certain Wholesale
    Master Service Agreement dated April 25, 2005, WilTel
    Contract #05R0586.00 (the “StarVox Purchase
    Agreement”); and

 

    WHEREAS, upon WGVS’ consent, Supplier assumed that certain
    WilTel Global Voice Services Agreement dated March 15,
    2004, WGVS Contract #04E0346.00 (the “Agreement”) from
    New Global Telecom, Inc.;

 

    WHEREAS, WGVS and Supplier are parties to the Agreement; and

 

    WHEREAS, WGVS and Supplier desire to amend the Agreement;

 

    NOW, THEREFORE in consideration of the foregoing promises and
    mutual promises and covenants of the parties hereto, the receipt
    and sufficiency of which is hereby acknowledged, WGVS and
    Supplier agree to amend the Agreement as follows:

 

		
	    1.  	
    The following shall be added as a new Section 3.5 to the
    Agreement:

 

    “3.5 Offset.  The Parties
    acknowledge and agree that upon prior written notice undisputed
    invoiced amounts for voice Services due hereunder shall be offset
    against undisputed invoiced amounts for voice Services due under
    the Wholesale Master Services Agreement for Supplier’s
    purchase of wholesale telecommunications services from WilTel
    entered into April 25, 2005 (“StarVox Purchase
    Agreement”) and that the party in the net debtor
    position after such netting shall make payment in accordance
    with the applicable agreement. If set-off is not permitted or
    payment is not made by the Due Date for any reason, Supplier
    shall have the express right to recoup undisputed amounts for
    voice Services owed to it under this Agreement from amounts it
    is holding for payment of voice Services to WilTel under the
    StarVox Purchase Agreement.”

 

		
	    2.  
	    Except as specifically amended herein, all terms, conditions and
    provisions contained in the Agreement shall remain unchanged and
    in full force and effect.

	 
	    3.  
	    This Amendment may be executed in one or
more counterparts, each
    of which shall be deemed an original and all of which together
    shall constitute one and the same agreement. Facsimile
    signatures shall be deemed original signatures.

 

    IN WITNESS WHEREOF, the parties have executed this Amendment on
    the day and year last set forth below but to be effective on the
    Effective Date.

 

	 	 	 
	
    STARVOX COMMUNICATIONS, INC.:
	
 
	
    WILTEL COMMUNICATIONS, LLC:

	 
	
    /s/
James S. Holden

	
 
	

/s/
Shaun Andrews

    

	
Signature of Authorized Representative

	
 
	Signature of Authorized
    Representative

	 
	
    James S.
Holden

	
 
	
    Shaun Andrews

	Printed
Name
	
 
	
    Printed Name

	 
	
General Manager

	
 
	
Director
    

	

    Title
    

	
 
	
    Title
    

	 
	
    7/19/05

	
 
	
    7/20/05

	

    Date
    

	
 
	
    Date
    

 

			
	    WilTel
    Communications Proprietary and Confidential
    	    (SEAL)
    	    StarVox
    GVSA Amend No 1 (Final 7-19-05)
    

 

AMENDMENT 2

To Wholesale Master Service Agreement

     This Amendment 2 (“Amendment”) is made and entered into June 7, 2005 (“Effective
Date”), by and between WilTel Communications, LLC (“WilTel”), end StarVox
Communications, Inc. (“Customer”).

     WHEREAS, WilTel and Customer are parties to that certain Wholesale Master Service Agreement
dated April 25, 2005, WilTel Contract #05R0586.00 (the “Agreement”); and

     WHEREAS, WilTel and Customer desire to amend the Agreement;

     NOW, THEREFORE in consideration of the foregoing premises and mutual promises and covenants of
the parties hereto, the receipt and sufficiency of which is hereby acknowledged, WilTel and
Customer agree to amend the Agreement as follows:

     1. The Access-Egress Switched Voice Service – Schedule 7-A attached hereto shall be added to
and made part of the Agreement as a new “Service Schedule” and such services shall be considered
“Services” under the Agreement.

     2. The Carrier Voice Service – Schedule 8 attached hereto shall be added to and made part of
the Agreement as a new “Service Schedule” and such services shall be considered “Services” under
the Agreement.

     3. The Internet Protocol Enabled Voice Service – Schedule 15 attached hereto shall be added to
and made part of the Agreement as a new “Service Schedule” and such services shall be considered
“Services” under the Agreement.

     4. Customer agrees to purchase, and WilTel agrees to provide, subject to approval of
Customer’s credit, Access-Egress Switched Voice Services, Carrier Voice Services, and Internet
Protocol-Enabled Voice Services (“Services”) for a period of sixty (60) days from the
delivery of such Services (“Trial Period”) subject to this Amendment and the Agreement
including the attached Service Schedules which are hereby incorporated by reference. WilTel
retains the right to terminate the Services provided under this Amendment at any time and for any
reason during the Trial Period or any extension thereof. Upon expiration of the Trial Period, the
Services will be discontinued unless the parties have executed an amendment modifying the payment
terms set forth in Section 4 of the Agreement for voice Services provided to Customer after
expiration of the Trial Period (“Payment Term Amendment”). If the parties execute the
Payment Term Amendment, provision and termination of voice Services shall then be governed in
accordance with the terms and conditions of the Agreement. Notwithstanding Section 4 of the
Agreement to the contrary, during the Trial Period only and subject to Section 5 of the Agreement,
all amounts stated on each invoice for voice Services are due and payable within thirty (30)
calendar days of the date of the invoice (“Voice Service Due Date”).

     5. Except as specifically amended herein, all terms, conditions and provisions contained in
the Agreement shall remain unchanged and in full force and effect.

-1-

 

     6. This Amendment may be executed in one or more counterparts, each of which shall be deemed
an original and all of which together shall constitute one and the same agreement. Facsimile
signatures shall be deemed original signatures.

-2-

 

     IN WITNESS WHEREOF, the parties have executed this Amendment on the day and year last set
forth below but to be effective on the Effective Date.

	 	 	 	 	 	 	 
	STARVOX COMMUNICATIONS, INC.:

	 	 	 	WILTEL COMMUNICATIONS, LLC:	 	 
	 
	 	 	 	 	 	 
	/s/James S. Holden
 

Signature of Authorized Representative

	 	 
	 	/s/Shaun Andrews
 

Signature of Authorized Representative
	 	 
	 
	 	 	 	 	 	 
	James S. Holden
 

Print Name

	 	 
	 	Shaun Andrews
 

Print Name
	 	 
	 
	 	 	 	 	 	 
	General Manager
 

Title

	 	 
	 	Director
 

Title
	 	 
	 
	 	 	 	 	 	 
	6/7/05
 

Date

	 	 
	 	6/7/05
 

Date
	 	 

-3-

 

Access- Egress Switched Voice Services – Schedule 7A

     This
Access-Egress Switched Voice Service Schedule (“Schedule”) is part of the
agreement under which WilTel provides WilTel Service to Customer and which incorporates this
Schedule (the “Agreement”). For purposes of this Schedule, all WilTel Access – Egress
Switched Voice Services as described herein shall be referred to as (“Voice Services”).
Voice Service shall not include any Third Party Services.

          1.1 Voice Service Rates. Customer’s pricing, discounts and commitments, if any, for
Voice Services are set forth in the attached rate attachments (“Rate Attachment”). The
pricing for Voice Services in the Rate Attachments represents “Base Rates” and does not
reflect any discount for volume achievement (in dollars) or Revenue Commitment (in dollars and
term) as defined below, if applicable.

          1.2 Transport Rate Tier. The Customer’s transport rate is set forth in Rate
Attachment A-1b, and may fluctuate each month based on Customer’s actual volume, subject to a
Revenue Commitment, if any. In order to determine Customer’s transport rate for this Schedule, in
any month during the Term of the Agreement, WilTel will calculate on a monthly basis, Customer’s
volume in dollars by aggregating Customer’s total payment for Voice Services for interstate,
intrastate and international usage (“Total Service Charges”). Total Service Charges do not
include any payments or charges for late charges, non-recurring charges, interest, taxes and other
government-imposed surcharges, or payments made by Customer for Third Party Services. Customer’s
Total Service Charges for the month will then be compared against the transport volume matrix as
set forth in Rate Attachment A-1b. Customer will then receive the transport rate associated with
the volume level actually achieved. If Customer has made a Revenue Commitment, Customer will be
billed in accordance with Section 1.3 below.

          1.3 Revenue Commitment. If Customer agrees to a Revenue Commitment, Customer shall be
obligated to purchase Voice Services under this Agreement in the amount reflected on Rate
Attachment A-1a per month (the “Revenue Commitment”) throughout the term of the Revenue
Commitment set forth in the Rate Attachment. To the extent that, in any month during the term of
the Revenue Commitment, Customer fails to have Total Service Charges greater than or equal to the
Revenue Commitment amount, WilTel may invoice Customer on Customer’s current or next invoice, an
amount equal to the difference between the Revenue Commitment amount and the Total Service Charge.
Such amount represents liquidated damages, and not a penalty, and is based on Customer’s commitment
to pay the Revenue Commitment amount for the entire term of Revenue Commitment as set forth in Rate
Attachment A-1a and WilTel’s agreement to the discounts set forth in Rate Attachment A-1b attached
hereto, which reflect such Revenue Commitment.

          1.4 Acceptance of Quote. All rates and/or the Revenue Commitment, set forth in the
attached Rate Attachment identified as quote #1-MZ12L, are hereby accepted by Customer.

-1-

 

Access- Egress Switched Voice Services — Schedule 7A

     2. Voice Services. Voice Services include: One Plus Services, One Plus Enhanced
Services, Toll Free Services, Toll Free Enhanced Services, International Toll Free Services,
Directory Assistance Services, Operator Assistance Services and Post-Paid Calling Card Services.

          2.1 “One Plus Services”. One Plus Services include Switched One Plus Services and
Dedicated One Plus Services as described below.

               a. “Switched One Plus Service”. Switched One Plus Service is the WilTel origination
(via individual telephone lines) and WilTel termination of calls over facilities comprising the
WilTel network.

               b. “Dedicated One Plus Service”. Dedicated One Plus Service is the WilTel termination
of calls solely over facilities comprising the WilTel network which origination is via dedicated
access lines (“DAL(s)”) from an end user’s private branch exchange (“PBX”) or other
Customer premise equipment (“CPE”). Customer or WilTel may order DALs to the WilTel point
of presence (“POP(s)”), for which Customer will reimburse WilTel all fees and charges for
such access lines together with WilTel’s then current administration fee.

          2.2 “One Plus Enhanced Services”. One Plus Enhanced Service includes Validated and
Invalidated Account Codes, which serve as an enhancement to One Plus Services as described in
Section 2.1 above.

               a. “Validated Account Codes”. Validated account codes are pre-defined by the Customer
and are validated against digit order and length prior to call completion.

               b. “Unvalidated Account Codes”. Unvalidated Account Codes are pre-defined by the
Customer and are verified against a specific digit length prior to call completion.

          2.3 “Toll Free Services”. Toll Free Services include Switched Toll Free Services and
Dedicated Toll Free Services as described below. Customer may select its unique Toll Free Number
(“TFN(s)”) from available TFNs or the TFN may be randomly generated by the nationwide
Service Management System (“SMS”) database. Customer’s TFN terminating location(s) can be
a 10-digit voice-grade telephone number or a dedicated access facility.

               a. “Switched Toll Free Service”. Switched Toll Free Service is the origination (via
individual telephone lines) and WilTel termination of Toll Free calls solely over facilities
comprising the WilTel network.

               b. “Dedicated Toll Free Service”. Dedicated Toll Free Service is the WilTel
origination of toll free calls solely over facilities comprising the WilTel network which
termination is via DALs to an end user’s private branch exchange (“PBX”) or other CPE.
WilTel may order DALs to the POP, for which Customer will reimburse WilTel all fees and charges for
such DALs.

-2-

 

Access- Egress Switched Voice Services — Schedule 7A

          2.4 “Toll Free Enhanced Service”. Toll Free Enhanced Service includes the following
enhanced service features.

               a. Responsible Organization (“RespOrg”). RespOrg identifies the company responsible
for managing and administering the 800 subscriber’s records in the 800 Service Management System
(“SMS/800”). Managing and administering the SMS/800 consists of data entry, changing
records, accepting trouble reports and referring and/or clearing issues with regard to the 800
subscriber’s record. Customer has the option to select WilTel as RespOrg or act as its own
RespOrg.

               b. Area of Services (“AOS”). AOS is Customer’s pre-defined network serving area where
toll free origination is allowed. Four AOS plans are available; (i) XA – 48 contiguous United
States, Alaska, Hawaii and Canada; (ii) XB – 48 contiguous United States, Alaska, Hawaii, Puerto
Rico, United States Virgin Islands; (iii) XC – 48 contiguous United States, Alaska, Hawaii, Puerto
Rico, United States Virgin Islands, Guam and Canada; (iv) US – 48 contiguous United States, Alaska
end Hawaii.

               c. Network Availability. Toll free calls can originate and Terminate within the
following areas:

                    i. Origination. Is offered in the 48 contiguous United States, Alaska, Hawaii,
Canada, Puerto Rico, United States Virgin Islands, Guam and Saipan.

                    ii. Termination. Toll free calls can terminate in the 48 contiguous United States,
Alaska, and Hawaii.

               d. “National Toll Free Directory Assistance”. National Toll Free Directory Assistance
lists Customer’s toll free number as published or non-published in the AT&T National Toll Free
Directory Assistance database (1-800-555-1212).

               e. Announcement/Custom Recordings. Customer may specify announcements or custom
recordings to complement its Toll Free Services. All recordings requested by Customer are subject
to approval of content by WilTel and recorded in WilTel’s professional recording studio.

               f. Real-time Automatic Number Identification (“ANI”) Delivery. Real-time ANI delivery
transmits the calling party’s ten (10) digit telephone number to the Customer’s premises allowing
identification of the calling party. This feature is only available over DALs.

               g. Dialed Number Identification Service (“DNIS”) Delivery. DNIS delivery identifies
two or more dialed toll free numbers received over a single trunk group. DNIS value (2 – 12
digits) is defined per toll free number. This feature is only available over DALs.

-3-

 

 Access- Egress Switched Voice Services — Schedule 7A

               h. “Carrier Allocation Routing”. Carrier Allocation Routing enables allocation of
toll free calls across two or more interexchange carriers (“IXC”) based on a pre-defined
percentage of calls. Carrier Allocation Routing is defined in the national SMS.

               i. “Call Referral Recording”. Call Referral Recording enables calls to be treated
with a customized announcement. All recordings requested by Customer are subject to approval of
content by WilTel.

               j. “Origin of Call Routing”. Origin of Call Routing routes calls based on the call’s
point of origin (“Calling Party ID”). Origin of Call Routing supports 3, 6, or 10-digit
routing. Call may terminate to multiple, pre-defined locations. If Customer requires customized
AOS, Origin of Call Routing is necessary.

               k. “Percent Allocation Routing”. Percent Allocation Routing enables allocation of
toll free calls across two or more, pre-defined terminating locations based on a percent of calls.

               l. “Time Dependent Routing”. Time Dependent Routing allows Customer to route toll
free calls based upon time and date of call origination. Routing may be established based upon
holiday, day of year, day of week, or time of day.

               m. “Menu Routing”. Menu Routing guides the dialing party through a list of
pre-defined menu options and routes the call to a desired destination.

               n. “Extension Routing”. Extension Routing prompts the dialing party for a one (1) to
fifteen (15) digit extension number that is verified against a Customer defined list of valid
extensions and subsequently routed to a related destination.

               o. “Busy/No Answer Overflow”. Busy/No Answer Overflow enables toll free calls to
route to up to five (5) pre-defined alternate locations if the primary location is busy or does not
answer.

               p. “Unvalidated Account Codes”. Unvalidated Account Codes are pre-defined by the
Customer and are verified against a specific digit length (2-12 digits) prior to call completion.

               q. “Authorization Codes”. Authorization Codes restrict access to Toll Free Service by
prompting the dialing party to enter a valid pre-determined Authorization Code prior to call
completion.

          2.5 International Toll Free Service (“ITFS”). ITFS is an extension or feature of
WilTel’s existing domestic Switched Toll Free Service or Dedicated Toll Free Service. When
ordering ITFS Customer must be on existing WilTel Switched Toll Free Service and/or Dedicated Toll
Free Service Customer, as international originated calls will terminate to these existing Voice
Service lines. ITFS is subject to availability and limitations invoked by some foreign

-4-

 

Access- Egress Switched Voice Services — Schedule 7A

          administrations as set forth in Section 2.5(b) below. Installation intervals vary by country
and shall be determined on an individual case basis. For each ITFS number, the Customer will be
assessed a non-recurring set-up fee to activate the ITFS and a per minute usage charge per country.

               a. ITFS Features:

                    i. Network Availability. Toll free calls can originate and terminate within the
following areas:

                         A. Origination. Offered from a large number of countries as set forth in the Rate
Attachment.

                         B. Termination. Toll free calls can terminate in the 48 contiguous United States,
Alaska, Hawaii, and Canada.

                    ii. “Time Dependent Routing”. Time Dependent Routing allows Customer to route toll
free calls based upon time and date of call origination. Routing may be established based upon
holiday, day of year, day of week, or time of day.

                    iii. “Busy/No Answer Overflow”. Busy/No Answer Overflow enables toll free calls to
route to up to five (5) pre-defined alternate locations if the primary location is busy or does not
answer.

                    iv. Dialed Number Identification Service (“DNIS”) Delivery. DNIS Delivery identifies
two or more dialed toll free numbers received over a single trunk group. DNIS value (2-12 digits)
is defined per toll free number. This feature is only available over DALs.

                    v. “Blocking”. Blocking will be available at the country level, and can be activated
with a twenty-four (24) hour lead-time.

               b. ITFS Limitations and Restrictions. ITFS is subject to certain limitations and
restrictions as set forth in the ITFS Access and Restrictions Guide which can be located at
http://www.wiltel.com/customers/content/guidelines/htm. For example, country availability may be
limited in certain worldwide locations, and some countries may restrict availability for calling
card use or condition availability on Customer’s provision of information. Additional features may
be available from time to time.

          2.6 “Directory Assistance Service”. Directory Assistance Service provides Customer’s
pre-subscribed end users with phone number, address and NPA/Country code information by dialing
1+NPA+SS5+1212 or by accessing the calling card automated platform. In addition to usage charges
for completed calls, a per-call surcharge is assessed to all calls regardless if the Directory
Assistance operator furnishes the requested telephone number(s), or advises the caller that the
requested number is non-published or no record can be found. WilTel offers domestic Directory
Assistance call completion in limited areas. International directory assistance is accessed by
dialing a WilTel operator who will request the number from the appropriate international operator.

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Access- Egress Switched Voice Services — Schedule 7A

          2.7 “Operator Assistance Service”. Operator Assistance Service provides Customer’s
pre-subscribed end-users call completion functions performed via a live operator or automated
systems. Access to WilTel’s operator assistance can be obtained by the following dialing methods:
(a) “00” from a telephone subscribed to WilTel’s network in a Feature Group D (“FGD”) area,
and (b) ”0+ (NPA-NXX-XXXX)” from a telephone subscribed to WilTel’s network in a POD area. WilTel
does not support Operator Assistance Services over dedicated facilities. Customer shall be
responsible for compliance with all signage, labeling and agreement requirements of the Federal
Communication Commission (“FCC”) regarding alternative operator assistance and consumer
protection policies. Types of Operator Assistance include:

               a. Collect Calls. Types of collect calls include:

                    i. Person to Person calls in which the operator verifies the dialed party is the intended
recipient and is willing to accept charges for the call prior to call completion and billing to the
destination number.

                    ii. Station to Station calls in which operator verifies the dialed party is willing to accept
charges for the call prior to call completion and billing to the destination number.

                    iii. Bill to Third Party Person to Person calls in which operator verifies the dialed party is
the intended recipient prior to call completion. The call is then billed to a third party.

                    iv. Bill to Third Party Station to Station calls in which the operator completes the call to
the dialed party and bills the call to a third party.

               b. LEC Calling Card Calls. Types of LEC Calling Card Calls include:

                    i. Automated LEC Calling Card Calls in which the end user dials 00 to go to the automated
attendant. After the automated tone, the end user enters a LEC card number and the call is
completed, which is done without the assistance of a live operator and the call is billed to the
end user’s LEC card.

                    ii. Customer Dialed LEC Calling Card Calls in which the end user dials 0+NPA plus the
destination number. After the automated tone, the end user goes to the operator, who requests
billing information, completes the call, which is billed to the end user’s LEC card.

                    iii. Operator Dialed LEC Calling Card Calls in which the end user requests the operator to
complete the call and requests the call to be billed to end user’s LEC calling card.

               c. General Assistance. End user requests general information from the operator, e.g.
inquiries to working telephone numbers, NPA inquiries, etc.

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 Access- Egress Switched Voice Services — Schedule 7A

               d. Automated Operator. Automated operator services processes calling card calls,
collect calls and bill-to third party call types for an domestic and international termination
calls.

               e. Line Information Database (“LIDB”) Validation Charges. Live or automated operators
use the LIDB to perform billing validation for ANIs, LEC cards, etc. The LIDB surcharge will be
passed through to the Customer.

          2.8 “Post-Paid Calling Card Services”. Post-Paid Calling Card Service provides long
distance telephone usage charges which do not originate from the end user pre-subscribed ANI to be
billed to the Customer’s account. Calls are placed by dialing a pre-determined toll free access
number and entering a fourteen (14) digit authorization number. Post-Paid Calling Card must be
ordered in conjunction with Toll Free Service or One Plus Service. Customer will be charged a
platform surcharge and per minute usage charge for the length of the terminating call to either a
domestic or international destination. Post-Paid Calling Card Service features include:

               a. Conference Calling. End user will access the conference calling option by pressing
the # key after entering a predefined fourteen (14) digit authorization number. Up to six (6)
additional parties may be added to the conference call. A surcharge for each additional line plus
a per minute usage charge will be assessed for each line.

               b. Unvalidated Account Codes. Unvalidated account codes are pre-defined by the
Customer and are verified against a specific digit length (2-8 digits) prior to call completion.

               c. Validated Account Codes. Validated account codes are pre-defined by the Customer
and are validated against digit order and length prior to call completion.

     3. Customer Representations and Responsibilities. Customer agrees to the following
representations and responsibilities.

          3.1 Customer Representations.

               a. Customer represents and warrants that it will comply with all applicable laws and
applicable rules and regulations promulgated by federal and state regulatory agencies, including,
but not limited to, those concerning IXC selection. Customer represents and warrants that it will
not submit to WilTel an end user ANI for activation without obtaining and maintaining a proper
primary interexchange carrier (“PIC”) authorization that complies with all applicable
federal and state laws, rules and regulations. Customer shall produce for WilTel’s Inspection, at
Customer’s expense, any PIC authorization within forty-eight (48) hours after WilTel’s oral or
written request, or within any shorter period required by a local access provider or regulatory
agency. When a request for the PIC authorization is made by a local access provider or regulatory
agency, WilTel will cooperate with Customer to obtain any reasonable extension of time Customer may
require. WilTel will cooperate with Customer (at Customer’s expense) in the defense

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Access- Egress Switched Voice Services — Schedule 7A

of any slamming or other similar charge of unlawful actions by Customer. Customer will also
cooperate with WilTel (at Customer’s expense) in the defense of any slamming or other similar
charge of unlawful actions by Customer. In such event WilTel may, in addition to any other remedy
hereunder, refuse to activate additional ANIs under Customer’s account if Customer is unable lo
cure such non-compliance. WilTel will resume accepting ANIs only after Customer produces evidence
reasonably satisfactory to WilTel that Customer is in compliance with this Section 3.1.

               b. Customer represents and warrants that it shall have appropriate certificates of public
convenience and necessity, licenses and all requited regulatory approvals and that it will be
legally authorized to provide service as contemplated under the terms and conditions of this
Schedule and the Agreement before such Voice Service is requested by Customer. Customer represents
and warrants that it will immediately notify WilTel in the event such certificates of public
convenience and necessity, licenses or other required regulatory approvals should be revoked,
suspended or, for whatever reason, cease to be effective.

               c. Customer agrees to defend, indemnify and hold harmless WilTel from any claims, demands,
actions, losses, damages, assessments, charges, liabilities, costs and expenses (including, without
limitation, interest, penalties and attorneys fees and disbursements) associated with, arising out
of or in any way relating to Customer’s breach of its representations in this Section 3.1.

          3.2 Customer’s Responsibility for End User ANI. Customer will be financially
responsible for usage generated by each end user ANI activated by WilTel pursuant to a request by
Customer until such ANI is presubscribed to another IXC or Customer requests that Voice Service be
terminated. Customer may request WilTel to block an ANI upon the end user’s failure to pay
Customer, subject to Customer’s prior certification to WilTel that it has given the end user any
notice required by any applicable law, statute, role or regulation. Customer will reimburse WilTel
for reasonable expenses incurred to block an ANI. However, Customer shall not be liable to WilTel
where WilTel either (i) does not block the ANI within four (4) hours after notice by Customer or
(ii) improperly activates an end user ANI.

          3.3 Customer’s Responsibility for Letter of Authorization. Customer will obtain and
retain, for a period of two (2) years from the termination or expiration date of the Agreement,
letters of authorization (“LOA(s)”) from all its customers, whether end users or not.
Customer shall, make such LOAs available upon reasonable request to WilTel and will defend,
indemnify and hold harmless WilTel from any claims, demands, actions, losses, damages, assessments,
charges, liabilities, costs end expenses (including, without limitation, interest, penalties and
attorneys fees and disbursements) WilTel may incur because of Customer’s failure to obtain, retain
and/or provide such LOAs to WilTel.

          3.4 Customer’s Responsibility for Fraudulent Calls. Customer shall be responsible for
all costs, expenses, claims or actions arising from all calls relating to Customer’s or its end
users use of Voice Services including those calls the purpose or effect of which is theft or
unauthorized usage of communications services or misleading or fraudulent communications of any
 

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Access- Egress Switched Voice Services — Schedule 7A

nature (including, without limitation, communications intended to effect theft through
unauthorized use of calling cards) and all unauthorized or fraudulent communications on
pay-per-call numbers, information service calls, directory assistance calls or the like for which
WilTel is billed that are passed through to the Customer for billing to Customer’s customers
(collectively, “Fraudulent Calls”). Customer shall not be excused from paying WilTel for
any Voice Services provided to Customer or any portion thereof on the basis that Fraudulent Calls
comprised a corresponding portion of the Voice Services. In the event WilTel discovers Fraudulent
Calls being made (or reasonably believes Fraudulent Calls are being made), WilTel shall immediately
notify Customer. Notwithstanding the foregoing, nothing contained herein shall prohibit WilTel
from taking immediate action (within one (1) hour of WilTel’s first attempt to notify Customer)
that is reasonably necessary to prevent such Fraudulent Calls from taking place, including without
limitation, denying any Voice Services to particular ANIs or terminating any Voice Services to or
from specific affected locations.

          3.5 Customer’s Responsibility for Traffic Forecast. Before issuing its first Service
Order and on a quarterly basis throughout the Term of the Agreement, Customer shall provide WilTel
with a rolling one-year forecast:

               a. for domestic Voice Service, specifying the number of minutes expected to be terminated or
originated in various local access transport area (“LATA(s)”) and/or tandems, and

               b. for international Voice Service, the number of minutes expected to be originated from or
terminated to each country for which Customer will seek Voice Service.

          3.6 Customer’s Responsibility for Equipment. Customer is responsible for ensuring
that the end user of any DAL has proper equipment to terminate a standard T-1, ISDN PRI T-1 or a
T-3 and to meet FCC interconnection standards. Customer or Customer’s end user is also responsible
for all costs at its premises incurred in the use of Voice Service, including but not limited to
equipment, wiring, electrical power, and personnel. If WilTel begins the installation process but
Customer does not have the necessary equipment available, Customer will reimburse WilTel all costs
that WilTel has incurred and WilTel will not be liable to provide any Voice Service to Customer or
Customer’s end user until and unless Customer or Customer’s end user has the necessary equipment.

          3.7 Customer’s Responsibility for Dial-Around Calls. WilTel does not offer a product
or service, which allows Customer or its end users to access the WilTel network by dialing 10-1XXXX
using a WilTel Carrier Identification Code (“CIC”) (a “Dial-Around Call”). WilTel
will block the WilTel CIC with respect to any Dial-Around Calls so as to prevent such access to the
WilTel network. Customer agrees that it will not market, offer or allow any Dial-Around Calls by
its end users. Customer agrees that it will defend, indemnify and hold harmless WilTel from any
claims, demands, actions, losses, damages, assessments, charges, liabilities, costs and expenses
(including, without limitation, interest, penalties and attorneys fees and disbursements)
associated with any Dial-Around Calls by Customer or its end users. Any violation of this Section
will be considered a material breach of the Agreement and, notwithstanding anything to the contrary
in this

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Access- Egress Switched Voice Services — Schedule 7A

Schedule or the Agreement, will allow WilTel to terminate this Schedule immediately and
without liability upon written notice to Customer.

          3.8 Customer’s Additional Responsibilities. Customer shall:

               a. subject to the terms of clause g. below, not use WilTel’s name, trademarks, trade names,
service marks or logos in connection with the provision of service to its end users including, but
not limited to, all billing and collection services;

               b. use its own product names which do not identify WilTel products;

               c. accept responsibility for all interaction and interface with its end users. Customer shall
be solely responsible for end user solicitation, service requests, creditworthiness, customer
service, billing, billing adjustments and collection. Regardless of its arrangement with its end
users or any claims an end user may have against it, the Customer remains responsible for
compliance with all terms and conditions of the Agreement, including but not limited to payment of
all charges for Voice Services furnished to the Customer or an authorized end user, regardless of
any use, misuse or abuse of the Customer’s service or Customer equipment by third parties, the
Customer’s employees or the public and regardless of Customer’s inability to charge for services
used by end users or to collect payment from end users;

               d. have sole responsibility for installation, testing and operation of facilities, services
and equipment other than those specifically provided by WilTel as part of the Voice Services
(“Customer Facilities”) as described in a Service Order. In no event will the untimely
installation or non-operation of Customer Facilities relieve Customer of its obligation to pay
charges for the Voice Services on the WilTel turn-up date as provided to Customer in WilTel’s order
confirmation document;

               e. be responsible for the security of Authorization Codes used by Customer or its end users.
All calls placed using such Authorization Codes or using Customer Facilities owned or controlled by
Customer or its end users will be billed to Customer and must be paid by Customer;

               f. not use or permit others to use the Voice Services in a manner that could interfere with
Voice Services provided to others or that could harm the facilities of WilTel or others. Such
impermissible uses include, but are not limited to, equipment malfunctions, connection of
unauthorized equipment, mass calling events, inadequate Customer trunking, excessive non-completed
calls, and excessive invalid calls. WilTel may, without liability, initiate immediate action
including, but not limited to, interruption of all Customer’s traffic without notice, to prevent or
terminate such activities;

               g. use the WilTel name only in post-sale communications which inform end users that WilTel is
the underlying carrier and that WilTel’s name may appear on copies of end user’s local phone bills
using specific language authorized by WilTel;

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Access- Egress Switched Voice Services — Schedule 7A

               h. assume all responsibility for PIC disputes and complaints with the LEC.

     4. Oilier Charges and Surcharges.

          4.1 Usage Charges. Usage charges are based on the actual usage of WilTel facilities.
Such charges are measured in Conversation Minutes as defined below. Conversation Minutes begin
when the called party answers, as determined by answer supervision, and end when either party
disconnects (“Conversation Minutes”). The minimum call duration for billing purposes is:
(a) for the 48 contiguous United States, Alaska, Hawaii, Puerto Rico, US Virgin Islands, Guam, and
Saipan Voice Service, six (6) seconds minimum initial period and usage is rounded to the next
higher six (6) second increment after the initial period; (b) for international Voice Service
except Mexico, thirty (30) seconds minimum initial period and usage is rounded to the next higher
six (6) second increment after the initial period; (c) for Voice Service to and from Mexico, sixty
(60) seconds minimum initial period and usage is rounded to (he next higher sixty (60) second
increment after the initial period.

          4.2 Chargeable Time. Chargeable time for Customer shall begin when the called party
answers, as determined by answer supervision, provided that such capabilities are available from
the local telephone company. If answer supervision is not available and the duration of a call is
at least one hundred and fifty (150) seconds, WilTel will bill for such call for a duration of one
hundred and twenty (120) seconds (inclusive of a thirty second call setup time). Chargeable time
for a call shall end upon disconnection by either party.

          4.3 Minimum Usage Charge (per Port). Customer’s dedicated ports must have minimum
usage of [$750] per month for a DS-l and [$7,500] per month for DS-3. Minimum usage charges are
restricted to usage only and non-recurring charges including but not limited to taxes or interest
do not count towards the minimum. This charge applies to any DAL or ISDN PRI. A national
aggregate of DS-1s and DS-3s, separately, will be calculated of Customer’s monthly DAL usage. The
aggregate will then be divided by the number of existing Customer DALs to arrive at an average
usage per DAL. The average use per DAL will be used to estimate if Customer has met the minimum
DAL usage for that month. In the event the average usage per DAL is below the minimum port charge,
a line item shortfall covering all DALs will be invoiced. In addition, WilTel reserves the right
to monitor usage amounts on all Customer DALs. If the DAL usage drops below [ten thousand (10,000)
minutes] of use for a DS-l or [one hundred fifty thousand (150,000)] minutes of use for a DS-3 for
two (2) consecutive months, WilTel may give Customer thirty (30) calendar days written notice that
the DAL will be disconnected and Customer will be responsible for any LEC termination liability.

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Access- Egress Switched Voice Services — Schedule 7A

          4.4 Surcharges. WilTel will assess against Customer and Customer will be responsible
for paving certain surcharges in addition to the Voice Service Rates as described in Section 1.1,
for use of WilTel Voice Services. These surcharges are described below:

               a. Payphone. A per call payphone surcharge is applicable to toll free access and Dial
Around Calls that originate from any payphone used to access the WilTel network as authorized by
FCC Docket No. 96-128.

               b. Non-Completed Calls. A surcharge shall be assessed when Customer’s domestic toll
free and international toll free non-completed calls exceed [ten percent (10%)] of Customer’s
overall domestic toll free and international toll free traffic respectively in a billing month.

               c. Unauthorized Primary Interexchange Carrier (“PIC”) Change. WilTel shall assess
Customer an Unauthorized Carrier Change Charge (“UCCC”) for each PIC change made without
prior valid authorization. Continued unauthorized PIC changes by Customer shall be considered
grounds for refusing to provide or for discontinuing Voice Service to Customer.

               d. “PIC Change Charge”. The LEC shall assess end user a pass through PIC Change
Charge when an end user’s ANI is PIC’d from one IXC to another IXC.

               e. “Carrier Line Charge or Primary Interexchange Carrier Charge (“PICC”). WilTel
shall assess Customer a pass through Carrier Line Charge known as a PICC for line charges assessed
by each underlying LEC.

               f. “PIC with Interexchange Pay Charge”. WilTel shall assess Customer a pass through
PIC Change Charge from the LEC when a Customer’s ANI is PIC’d from one IXC to another IXC.

     5. Traffic Jurisdiction Determination. If WilTel provides any Voice Service for which
the rates or other terms and conditions depend on the jurisdictional nature (interstate, including
international, or intestate) of Customer traffic, WilTel shall be entitled to determine the
jurisdiction of such traffic to the extent WilTel can make such a determination based on call
detail information. WilTel shall utilize a hierarchical rating methodology based on the following
information in sequential order of priority from highest to lowest:

          a. For terminating traffic, WilTel shall use: Originating Local Routine Number
(“ORIGLRN”), Calling Party Number (“CPN”), or Originating Number/ANI
(“ANISP”) to determine jurisdiction.

          b. For originating traffic, WilTel shall use: Terminating LRN (“TERMLRN”) or Called
Number (“CALLEDNO”) to determine jurisdiction. To the extent WilTel cannot make such a
determination with respect to traffic (“Indeterminate Traffic”), if Customer is a
switchless reseller
 

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Access- Egress Switched Voice Services — Schedule 7A

utilizing end user DALs, WilTel shall use the DAL point of interconnection as the origination
or termination point for the closed end of the Voice Service.

     6. Applicability of Tariffs.

          a. Interstate Services. For interstate and international Voice Service, the parties
hereby agree that the Agreement, to the extent it is subject to FCC regulation, is an inter-carrier
agreement not subject to the tariff filing requirements of Section 203(a) of the Communications Act
of 1934, as amended. All terms, conditions, and prices for the Voice Services provided by WilTel
under the Agreement, to the extent they are telecommunications services subject to FCC regulation,
shall be those terms, conditions, and prices contained in the Agreement and related documents, and
not those contained in any WilTel federal tariff.

          b. Intrastate Services. Where WilTel is authorized to provide intrastate switched
Voice Services, the provision of such Voice Service shall be at the rates stated in and in
accordance with the terms and conditions of WilTel’s applicable intrastate tariff or otherwise in
accordance with applicable state law.

          c. Modification of Tariffs. WilTel may modify or withdraw tariffs from time to time,
which may result in the discontinuation of any Voice Service. WilTel shall have no liability for
any such discontinuation. In the event WilTel withdraws its filed tariffs, the tariff terms and
conditions in effect on the date of such withdrawal will continue to apply to the Agreement. After
withdrawal of the applicable tariffs, the terms of the Agreement will control over any inconsistent
provision in the former tariffs, subject to standard contract interpretation rules. Tariffs not
withdrawn shall continue to have the same force and effect.

     7. Backhaul. WilTel will absorb all backhaul costs between a WilTel POP and the
nearest WilTel voice switch. In exchange areas where there is a Third Party Provided POP and not a
WilTel POP, WilTel may provide Third Party Provided IXC backhaul service at rates to be determined
on an individual case basis.

     8. Change Notice.

          a. Customer’s international, Alaska, Hawaii, Puerto Rico, US Virgin Islands, Guam, and Saipan
rates and discounts are subject to change upon five (5) days written or electronic notice by WilTel
to Customer. All other Voice Service pricing, discounts, and non-recurring charges are subject to
change upon fifteen (15) days written or electronic notice by WilTel to Customer.

          b. All notices for Voice Service rates pursuant to this Schedule shall be as follows: Customer
and WilTel agree that Voice Service rate change notices shall be sent by either facsimile
transmission or electronic mail and are deemed to be received the day that the notice is sent by
WilTel. Notice by facsimile is sent when it is transmitted to the facsimile number designated by
the recipient as the facsimile number the recipient uses for the purpose of receiving facsimile
information. Notice by electronic mail is sent when it is addressed properly or otherwise directed

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Access- Egress Switched Voice Services — Schedule 7A

properly to an information processing system that the recipient has designated or uses for the
purpose of receiving electronic information of the type sent. If, after sending a notice by
electronic mail, WilTel receives an error or other message indicating that the electronic mail has
not entered a region of the information processing system outside of the control of WilTel, or, if
sent by facsimile, WilTel receives an error or other message indicating that the facsimile
transmission has not been properly transmitted to the designated facsimile number, WilTel shall
then send notice of the rate change via prepaid first class United States mail, in which case the
notice will be deemed to be effective on the fourth (4th) business day after the postmark date
thereof. For purposes of notice of this Section, the Customer shall designate an electronic mail
address and the contact name and title of a person authorized to receive the Voice Service rate
change notices by electronic mail; and a facsimile number and the contact name and title of a
person authorized to receive the rate change notices by facsimile transmission. Customer may
change this notice information by providing WilTel (30) thirty days written notice of such change.
Such notice shall be sent via email tovoiceacctmgt@wcg.com.

	 	 	 
	Customer E-Mail Notification
	 	 
	 
	 	 
	Contact Name

	 	Steve Holden
	Contact Title:

	 	General Manager
	Contact E-mail Address:

	 	steveholden@starvoxenhancedservices.com
	Customer Facsimile Notification
	 	 
	 
	 	 
	Contact Name:

	 	Steve Holden
	Contact Title:

	 	General Manager
	Facsimile Number:

	 	214-485-1578 

          9.1 Planned Network Maintenance Period (“PMNP(s)”). WilTel shall avoid performing
PNMP between 0600 to 2200 local time, Monday through Friday. WilTel shall provide Customer with
electronic mail, telephone, facsimile, or written notice of a PNMP (i) not less than three (3)
business days prior to performing a PNMP that in WilTel’s reasonable opinion, has a substantial
likelihood of affecting Customer’s traffic for up to fifty (50) milliseconds, or (ii) not less than
ten (10) business days prior to performing a PNMP that in WilTel’s reasonable opinion, has a
substantial likelihood of affecting Customer’s traffic for more than fifty (50) milliseconds. If
the PNMP is canceled or delayed, WilTel shall promptly notify Customer and shall comply with the
provisions of this Section 9.1 to reschedule the PNMP.

          9.2 Emergency Network Maintenance Period (“ENMP(s)”). It may be necessary for WilTel
to issue notification of an ENMP. ENMPs allow WilTel to perform mandated maintenance with a shorter
Customer notification interval than PNMPs.

     10. Warranty. WILTEL MAKES NO WARRANTY WITH RESPECT TO THE VOICE SERVICE PROVIDED
UNDER THIS SCHEDULE. WILTEL DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED INCLUDING WITHOUT
LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

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Access- Egress Switched Voice Services — Schedule 7A

PARTICULAR PURPOSE. NO WARRANTY
IS MADE OR PASSED ON WITH RESPECT TO ANY THIRD PARTY SERVICES.

-15-

 

Carrier Voice Services—Schedule 8

     This Carrier Voice Service Schedule (“Schedule”) is part of the agreement under which
WilTel provides WilTel Service to Customer and which incorporates this Schedule (the
“Agreement”). For purposes of this Schedule, all WilTel carrier Voice Services as
described herein shall be referred to as (“Voice Services”). Voice Service shall not
include any Third Party Services.

          1.1 Voice Service Rates. Customer’s pricing, discounts and commitments, if any, for
Voice Services are set forth in the attached rate attachments (“Rate Attachment”). The
pricing for Voice Services in the Rate Attachments represents “Base Rates” and does not
reflect any discount for volume achievement (in dollars) or Revenue Commitment (in dollars and
term) as defined below, if applicable.

          1.2 Discount. The Customer’s discount to its Base Rates, if any, is set forth in Rate
Attachment A-lb, and may fluctuate each month based on Customer’s actual volume, subject to a
Revenue Commitment, if any. In order to determine Customer’s discount for Voice Services, if any,
in any month during the Term of the Agreement, WilTel will calculate on a monthly basis, Customer’s
volume in dollars by aggregating Customer’s total payment for Voice Services for interstate,
intrastate and international usage (“Total Service Charges”). Total Service Charges do not
include any payments or charges for late charges, non-recurring charges, interest, taxes and other
government-imposed surcharges, or payments made by Customer for Third Party Services. Customer’s
Total Service Charges for the month will then be compared against the volume discount structure set
forth in Rate Attachment A-lb. Customer will then receive the discount associated with the volume
level actually achieved. If Customer has made a Revenue Commitment, Customer will be billed in
accordance with Section 1.3 below.

          1.3 Revenue Commitment. If Customer agrees to a Revenue Commitment, Customer shall be
obligated to purchase Voice Services under this Agreement in the amount reflected on Rate
Attachment A-1a, per month (the “Revenue Commitment”) throughout the term set forth in the
Rate Attachment. To the extent that, in any month during the term of the Revenue Commitment,
Customer fails to have Total Service Charges greater than or equal to the Revenue Commitment
amount, WilTel may invoice Customer on Customer’s current or next invoice, an amount equal to the
difference between the Revenue Commitment amount and the Total Service Charge. Such amount
represents liquidated damages, and not a penalty, and is based on Customer’s commitment to pay the
Revenue Commitment amount for the entire term of Revenue Commitment as set forth in Rate Attachment
A-1a and WilTel’s agreement to the discounts set forth in Rate Attachment A-1b attached hereto,
which reflect such Revenue Commitment.

          1.4 Acceptance of Quote. All rates and/or the Revenue Commitment, set forth in the
attached Rate Attachment identified as quote #1–MZ05C, are hereby accepted by Customer.

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Carrier Voice Services—Schedule 8

     2. Voice Services. Voice Services include: Carrier LEC Toll Free Services, Toll Free
Enhanced Services, International Toll Free Services, and Carrier LEC Termination Service.

          2.1 “Carrier LEC Toll Free Service”. Carrier LEC Toll Free Service is the WilTel
origination of toll free calls and the termination of such calls to one or more full time dedicated
connections between Customer’s network and the WilTel network at one or more WilTel points of
presence (“POP(s)”). WilTel may order dedicated access lines (“DAL(s)”) to the
WilTel POP, for which Customer will reimburse WilTel all fees and charges for such DALs.

          2.2 “Toll Free Enhanced Service”. Toll Free Enhanced Service includes the following
enhanced service features.

               a. Toll Free Enhanced Service Features:

                    i. Responsible Organization (“RespOrg”). RespOrg identifies the company responsible
for managing and administering the 800 subscriber’s records in the 800 Service Management System
(“SMS/800”). Managing and administering the SMS/800 consists of data entry, changing
records, accepting trouble reports and referring and/or clearing issues with regard to the 800
subscriber’s record. Customer has the option to select WilTel as RespOrg or act as its own
RespOrg.

                    ii. Area of Service (“AOS”). AOS is Customer’s pre-defined network serving area where
toll free origination is allowed. Three AOS plans are available: (i) 48 contiguous United States,
Alaska, Hawaii and Canada, (ii) 48 contiguous United States, Alaska, Hawaii, Puerto Rico, United
States Virgin Islands, Guam and Saipan; (iii) 48 contiguous United States, Alaska, Hawaii, Puerto
Rico, United States Virgin Islands, Guam, Saipan and Canada.

                    iii. Network Availability. Toll free calls can originate and terminate within the
following areas:

                         A. Origination. Is offered in the 48 contiguous United States, Alaska, Hawaii,
Canada, Puerto Rico, United States Virgin Islands, Guam, and Saipan.

                         B. Termination. Toll free calls can terminate in the 48 contiguous United States,
Alaska, Hawaii and Canada.

                    iv. “National Toll Free Directory Assistance”. National Toll Free Directory
Assistance lists Customer’s toll free number as published or non-published in the AT&T National
Toll Free Directory Assistance database (1-800-555-1212).

                    v. Announcements/Custom Recordings. Customer may specify announcements or custom
recordings to complement its Toll Free Services. All recordings requested by Customer are subject
to approval of content by WilTel and recorded to WilTel’s professional recording studio.

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Carrier Voice Services—Schedule 8

                    vi. Real-lime Automatic Number Identification (“ANI”) Delivery. Real-time ANI
delivery transmits the calling party’s ten (10) digit telephone number to the Customer’s premises
allowing identification of the calling party. This feature is only available over DALs.

                    vii. Dialed Number Identification Service (“DNIS”) Delivery. DNIS delivery identifies
two or more dialed toll free numbers received over a single trunk group. DNIS value (2-12 digits)
is defined per toll free number. This feature is only available over DALs.

                    viii. “Carrier Allocation Routing”. Carrier Allocation Routing enables allocation of
toll free calls across two or more interexchange carriers (“IXC”) based on a pre-defined
percentage of calls. Carrier Allocation Routing is defined in the national SMS.

                    ix. “Call Referral Recording”. Call Referral Recording enables calls to be treated
with a customized announcement. All recordings requested by Customer are subject to approval of
content by WilTel.

                    x. “Origin of Call Routing”. Origin of Call Routing routes calls based on the call’s
point of origin (“Calling Party ID”). Origin of Call Routing supports 3, 6, or 10-digit
routing. Calls may terminate to multiple, pre-defined locations. If Customer requires customized
AOS, Origin of Call Routing is necessary.

                    xi. “Percent Allocation Routing”. Percent Allocation Routing enables allocution of
toll free calls across two or more, pre-defined terminating locations based on a percent of calls.

                    xii. “Time Dependent Routing”. Time Dependent Routing allows Customer to route toll
free calls based upon time and date of call origination. Routing may be established based upon
holiday, day of year, day of week, or time of day.

                    xiii. “Menu Routing”. Menu Routing guides the dialing party through a list of
pre-defined menu options and routes the call to a desired destination.

                    xiv. “Extension Routing”. Extension Routing prompts the dialing party for a one (1)
to fifteen (15) digit extension number that is verified against a Customer defined list of valid
extensions arid subsequently routed to a related destination.

                    xv. “Busy/No Answer Overflow”. Busy/No Answer Overflow enables toll free calls to
route to up to five (5) pre-defined alternate locations if the primary location is busy or does not
answer.

                    xvi. “Unvalidated Account Codes”. Unvalidated Account Codes are predefined by the
Customer and are verified against a specific digit length (2-12 digits) prior to call completion.

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Carrier Voice Services—Schedule 8

                    xvii. “Authorization Codes”. Authorization Codes restrict access to Toll Free Service
by prompting the dialing party to enter a valid pre-determined Authorization Code prior to call
completion.

          2.3 “Carrier LEG Termination Service”. Carrier LEC Termination Service is the WilTel
termination of calls received from one or more full time dedicated connections between the
Customer’s network and the WilTel network at a WilTel POP. WilTel may order DALs to the WilTel
POP, for which Customer will reimburse WilTel all fees and charges for such DALs.

          2.4 International Toll Free Service (“ITFS”). ITFS is an extension or feature of
WilTel’s existing domestic Carrier LEC Toll Free Service. When ordering ITFS Customer must be an
existing Carrier LEC Toll Free Service Customer, as international originated calls will terminate
to these existing Voice Service lines. ITFS is subject to availability and limitations invoked by
some foreign administrations as set forth in Section 2.4(b) below. Installation intervals vary by
country end shall be determined on an individual case basis. For each ITFS number, the Customer
will be assessed a non-recurring set-up fee to activate the ITFS and a per minute usage charge per
country.

               a. ITFS Features:

                    i. Network Availability. Toll free calls can originate and terminate within the following
areas:

                         A. Origination. Offered from a large number of countries asset forth in the Rate Attachment.

                         B. Termination. Toll free calls can terminate in the 48 contiguous United States, Alaska,
Hawaii, and Canada.

                    ii. “Time Dependent Routing”. Time Dependent Routing allows Customer to route toll free calls
based upon time and date of call origination. Routing may be established based upon holiday, day
of year, day of week, or time of day.

                    iii. “Busy/No Answer Overflow”. Busy/No Answer Overflow enables toll free calls to route to
up to five (5) pre-defined alternate locations if the primary location is busy or does not answer.

                    iv. Dialed Number Identification Service (“DNIS”) Delivery. DNIS Delivery identifies two or
more dialed toll free numbers received over a single trunk group. DNIS value (2-12 digits) is
defined per toll free number. This feature is only available over DALs.

                    v. “Blocking”. Blocking will be available at the country level, and can be activated with a
twenty-four (24) hour lead-time.

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Carrier Voice Services—Schedule 8

               b. ITFS Limitations and Restrictions. ITFS is subject to certain limitations and restrictions
as set forth in the ITFS Access and Restrictions Guide, which can be located at
http://www.wiltel.com/customers/content/guidelines.htm. For example, country availability may be
limited in certain worldwide locations, and some countries may restrict availability for calling
card use or condition availability on Customer’s provision of information. Additional features may
be available from time to time.

     3. Customer Representations and Responsibilities. Customer agrees to the following
representations and responsibilities.

          3.1 Customer Representations.

               a. Customer represents and warrants that it shall have appropriate certificates of public
convenience and necessity, licenses and all required regulatory approvals and that it will be
legally authorized to provide service as contemplated under the terms and conditions of this
Schedule and the Agreement before such Voice Service is requested by Customer. Customer represents
and warrants that it will immediately notify WilTel in the event such certificates of public
convenience and necessity, licenses or other required regulatory approvals should be revoked,
suspended or, for whatever reason, cease to be effective.

          3.2 Customer’s Responsibility for Fraudulent Calls. Customer shall be responsible for
all costs, expenses, claims or actions arising from all calls relating to Customer’s or its end
users use of Voice Services including those calls the purpose or effect of which is theft or
unauthorized usage of communications services or misleading or fraudulent communications of any
nature (including, without limitation, communications intended to effect theft through unauthorized
use of calling cards) and all unauthorized or fraudulent communications on pay-per-call numbers,
information service calls, directory assistance calls or the like for which WilTel is billed that
are passed through to the Customer for billing to Customer’s customers) (collectively,
“Fraudulent Calls”). Customer shall not be excused from paying WilTel for any Voice
Services provided to Customer or any portion thereof on the basis that Fraudulent Calls comprised a
corresponding portion of the Voice Services. In the event WilTel discovers Fraudulent Calls being
made (or reasonably believes Fraudulent Calls are being made), WilTel shall immediately notify
Customer. Notwithstanding the foregoing, nothing contained herein shall prohibit WilTel from
taking immediate action (within one (1) hour of WilTel’s first attempt to notify Customer) that is
reasonably necessary to prevent such Fraudulent Calls from taking place, including without
limitation, denying any Voice Services to particular ANIs or terminating any Voice Services to or
from specific affected locations.

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Carrier Voice Services—Schedule 8

          3.3 Customer’s Responsibility for Traffic Forecast. Before issuing its first Service
Order and on a quarterly basis throughout the Term of the Agreement, Customer shall provide WilTel
with a rolling one-year forecast:

               a. for domestic Voice Service, specifying the number of minutes expected to be terminated or
originated in various local access transport areas (“LATA(s)”) and/or tandems, and

               b. for international Voice Service, the number of minutes expected to be originated from or
terminated to each country for which Customer will seek Voice Service.

          3.4 Customer Responsibility for Equipment. Customer is responsible for ensuring that
the end user of any DAL has proper equipment to terminate a standard T-l, ISDN PRI T-l or a T-3 and
to meet FCC interconnection standards. Customer or Customer’s end user is also responsible for all
costs at its premises incurred in the use of Voice Service, including but not limited to equipment,
wiring, electrical power, and personnel. If WilTel begins the installation process but Customer
does not have the necessary equipment available, Customer will reimburse WilTel all costs that
WilTel has incurred and WilTel will not be liable to provide any Voice Service to Customer or
Customer’s end user until and unless Customer or Customer’s end user has the necessary equipment.

          3.5 Customer’s Additional Responsibilities: Customer shall:

               a. subject to the terms of clause g. below, not use WilTel’s name, trademarks, trade names,
service marks or logos in connection with the provision of service to its end users including, but
not limited to, all billing and collection services;

               b. use its own product names which do not identify WilTel products;

               c. accept responsibility for all interaction and interface with its end users. Customer shall
be solely responsible for end user solicitation, service requests, creditworthiness, customer
service, billing, billing adjustments and collection. Regardless of its arrangement with its end
users or any claims an end user may have against it, the Customer remains responsible for
compliance with all terms and conditions of the Agreement, including but not limited to payment of
all charges for Voice Services furnished to the Customer or an authorized end user, regardless of
any use, misuse or abuse of the Customer’s service or Customer equipment by third parties, the
Customer’s employees or the public and regardless of Customer’s inability to charge for services
used by end users or to collect payment from end users;

               d. have sole responsibility for installation, testing and operation of facilities, services
and equipment other than those specifically provided by WilTel as part of the Voice Services
(“Customer Facilities”) as described in a Service Order. In no event will the untimely
installation or non-operation of Customer Facilities relieve Customer of its obligation to pay
charges for the Voice Services on the WilTel turn-up date as provided to Customer in WilTel’s order
confirmation document.

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Carrier Voice Services—Schedule 8

               e. comply with the rules and guidelines concerning Local Number Portability (“LNP”);

               f. be responsible for the security of Authorization Codes used by Customer or its end users.
All calls placed using such Authorization Codes or using Customer Facilities owned or controlled by
Customer or its end users will be billed to Customer and must be paid by Customer;

               g. not use or permit others to use the Voice Services in a manner that could interfere with
Voice Services provided to others or that could harm the facilities of WilTel or others. Such
impermissible uses include, but are not limited to, equipment malfunctions, connection of
unauthorized equipment, mass calling events, inadequate Customer trunking, excessive non-completed
calls, and excessive invalid calls. WilTel may, without liability, initiate immediate action
including, but not limited to, interruption of all Customer’s traffic without notice, to prevent or
terminate such activities;

               h. use the WilTel name only in post-sale communications which inform end users that WilTel is
the underlying carrier and that WilTel’s name may appear on copies of end user’s local phone bills
using specific language authorized by WilTel.

     4. Other Charges and Surcharges

          4.1 Usage Charges. Usage charges are based on the actual usage of WilTel facilities.
Such charges are measured in Conversation Minutes as defined below. Conversation Minutes begin
when the called party answers, as determined by answer supervision, and end when either party
disconnects (“Conversation Minutes”). The minimum call duration for billing purposes is:
(a) for the 48 contiguous United States, Alaska, Hawaii, Puerto Rico, US Virgin Islands, Guam, and
Saipan Voice Service, six (6) seconds minimum initial period and usage is rounded to the next
higher six (6) second increment after the initial period; (b) for international Voice Service
except Mexico, thirty (30) seconds minimum initial period and usage is rounded to the next higher
six (6) second increment after the initial period; for Voice Service to and from Mexico, sixty (60)
seconds minimum initial period and usage is rounded to the next higher sixty (60) second increment
after the initial period.

          4.2 Chargeable Time. Chargeable time for Customer shall begin when the called party
answers, as determined by answer supervision, provided that such capabilities are available from
the local telephone company. If answer supervision is not available and the duration of a call is
at least [one hundred and fifty (150)] seconds, WilTel will bill for such call for a duration of
[one hundred and twenty (120)] seconds (inclusive of a thirty second call setup time). Chargeable
time for a call shall end upon disconnection by either party.

          4.3 Minimum Usage Charge (per Port). Customer’s dedicated ports must have minimum
usage of [$750] per month for a DS-1 and [$7,500] per mouth for DS-3. Minimum usage charges are
restricted to usage only and non-recurring charges including but not limited to taxes or

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Carrier Voice Services—Schedule 8

interest do not count towards the minimum. This charge applies to any DAL or ISDN PRI. A
national aggregate of DS-1s and DS-3s, separately, will be calculated of Customer’s monthly DAL
usage. The aggregate will then be divided by the number of existing Customer DALs to arrive at an
average usage per DAL. The average use per DAL will be used to estimate if Customer has met the
minimum DAL usage for that month. In the event the average usage per DAL is below the minimum port
charge, a line item shortfall covering all DALs will be invoiced. In addition, WilTel reserves the
right to monitor usage amounts on all Customer DALs. If the DAL usage drops below [ten thousand
(10,000)] minutes of use for a DS-1 or [one hundred fifty thousand (150,000)] minutes of use for a
DS 3 for two (2) consecutive months. WilTel may give Customer thirty (30) calendar days written
notice that the DAL will be disconnected and Customer will be responsible for any LEC termination
liability.

          4.4 Surcharges: WilTel will assess against Customer and Customer will be responsible
for paying certain surcharges in addition to the Voice Service Rates as described in Section 1.1,
for use of Voice Services. These surcharges are described below:

               a. Non-Completed Calls. A surcharge shall be assessed when Customer’s domestic toll
free and International toll free non-completed calls exceed [ten percent (10%)] of Customer’s
overall toll free and international toll free traffic, respectively, in a billing month.

               b. Payphone Surcharges. Except as set forth in the Federal Communication Commission’s
(“FCC’s”) Payphone Compensation rules (47 C.F.R. § 64.1300) or in a separate written end
duly executed schedule or agreement, to the extent Customer is the Completing Carrier under the
FCC’s rules: (i) Customer shall assume direct responsibility pursuant to such rules for payment of
compensation to Payphone Service Providers (“PSPs”), (ii) WilTel shall have no obligation
relating to such Customer compensation, including without limitation any obligation to track,
collect, reconcile, or provide data relating to such calls, (iii) Customer shall have no liability
to pay Payphone Surcharges to WilTel, (iv) WilTel shall have no obligation to provide PSPs with
compensation for Customer’s calls, and (v) Customer shall, upon WilTel’s written request, provide
any information required to rebut any claim by a regulatory body, PSP, external auditor, or
clearinghouse that WilTel is obligated to compensate PSPs for such calls. To the extent Customer
is not designated as the Completing Carrier for Customer calls, Customer will be subject to a per
call payphone surcharge to the extent payphone compensation obligations apply to such calls under
the FCC’s rules (47 C.F.R. § 64.1300 et seq.).

     5. Traffic Jurisdiction Determination.

          a. If WilTel provides any Voice Service for which the rates or other terms and conditions
depend on the jurisdictional nature (interstate, including international, or intrastate) of
Customer traffic, WilTel shall be entitled to determine the jurisdiction of such traffic to the
extent WilTel can make such a determination based on call detail information.

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Carrier Voice Services—Schedule 8

          b. To the extent WilTel cannot make such a determination with respect to traffic
(“Indeterminate Traffic”), Customer shall determine the percentage of interstate (including
international) and intrastate minutes of use for such Indeterminate Traffic and shall, at WilTel’s
request, promptly provide WilTel with a written certification (“Traffic Jurisdiction
Certification”) of such percent in a form acceptable to WilTel for each state of
interconnection. Traffic Jurisdiction Certifications may be modified from time to time by
Customer, and are subject to recertification upon the request of WilTel, which requests shall not
be made unilaterally by WilTel more than once each calendar quarter. Initial or modified Traffic
Jurisdiction Certifications shall be effective prospectively as of the first day of the next
calendar month if received by the fifteenth (15th) day of the month. If received after the
fifteenth (15th) day of the month, the initial or modified Traffic Jurisdiction Certifications
shall be effective the first day of the month following the next calendar month.

          c. Until Customer provides a Traffic Jurisdiction Certification for an interconnection or if
Customer fails to make any required recertification for an interconnection, the relevant minutes of
use for such Indeterminate Traffic will be deemed to be [fifty percent (50%) interstate] and [fifty
percent (50%)] intrastate. WilTel may (i) rely on such Traffic Jurisdiction Certification in its
own percent interstate usage (“PIU”) filings and (ii) file any such Traffic Jurisdiction
Certification with any governmental authority, Third Party Provider, or local exchange carrier
(“LEC”).

          d. If WilTel disputes the reasonableness of the Traffic Jurisdiction Certification(s) or a
Traffic Jurisdiction Certification varies by more than five (5) percentage points from the
preceding Traffic Jurisdiction Certification, WilTel may require Customer to provide at its own
expense the data Customer used to determine the projected traffic jurisdiction and other relevant
information (such as Source File and billing system information) reasonably necessary to determine
the accuracy of the Traffic Jurisdiction Certification(s) (collectively, “Traffic Jurisdiction
Data”). Such audits shall be limited to no more than one (1) per year, except where additional
audits may be required to verify allocation changes that represent a five (5) percentage point
shift from Customer’s most recent Traffic Jurisdiction Certification, and such change is not (in
WilTel’s reasonable opinion) the result of seasonal shifts or other identifiable reasons. If such
an audit results in a traffic jurisdiction determination that differs from the Traffic Jurisdiction
Certification, the traffic jurisdiction determination that results from the audit shall govern.
Without limiting the foregoing, if any governmental authority, LEC, or Third Party Provider
requires an audit of WilTel PIU reports, or to the extent such governmental authority or entity is
entitled to audit the jurisdiction of Customer’s traffic, Customer shall cooperate in such audit at
its expense and make its underlying Traffic Jurisdiction Data available to WilTel solely for the
purpose of verifying Customer’s traffic jurisdiction. If WilTel requests such data, Customer shall
make it available to WilTel for inspection and copying within fifteen (15) calendar days of such
request.

          e. Customer stall indemnify WilTel for any liability or costs (including, without limitation,
any back-billing, interest, penalties, legal fees, and legal expenses) WilTel incurs as a result of
(i) any variance between the percentages in any Traffic Jurisdiction Certification and those
determined by any such audit, (ii) any inaccuracies in WilTel’s PIU reports resulting from
Customer’s failure to provide or recertify a Traffic Jurisdiction

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Carrier Voice Services—Schedule 8

Certification, (iii) Customer’s provision of inaccurate information, (iv) Customer’s
alteration or deletion of real-time traffic information, or (v) Customer’s failure to provide
accurate Traffic Jurisdiction Data.

     6. Applicability of Tariffs.

          a. Interstate Services. For interstate and international Voice Service, the parties
hereby agree that the Agreement, to the extent it is subject to FCC regulation, is an inter-carrier
agreement not subject to the tariff filing requirements of Section 203(a) of the Communications Act
of 1934, as amended. All terms, conditions, and prices for the Voice Services provided by WilTel
under the Agreement, to the extent they are telecommunications services subject to FCC regulation,
shall be those terms, conditions, and prices contained in the Agreement and related documents, and
not those contained in any WilTel federal tariff.

          b. Intrastate Services. Where WilTel is authorized to provide intrastate Voice
Services, the provision of such Voice Service shall be at the rates stated in and in accordance
with the terms and conditions of WilTel’s applicable intrastate tariff or otherwise in accordance
with applicable state law.

          c. Modification of Tariffs. WilTel may modify or withdraw tariffs from time to time,
which may result in the discontinuation of any Voice Service. WilTel shall have no liability for
any such discontinuation. In the event WilTel withdraws its filed tariffs, the tariff terms and
conditions in effect on the date of such withdrawal will continue to apply to the Agreement;
however, the terms of the Agreement will control over any inconsistent provision in the former
tariffs, subject to standard contract interpretation rules. Tariffs not withdrawn shall continue
to have the same force and effect.

     7. Backhaul. WilTel will absorb all backhaul costs between a WilTel POP and the
nearest WilTel voice switch. In exchange areas where there is a Third Party Provided POP and not a
WilTel POP, WilTel may provide Third Party Provided IXC backhaul service at rates to be determined
on an individual case basis.

     8. Change Notice.

          a. Customer’s international, Alaska, Hawaii, Puerto Rico, US Virgin Islands, Guam, and Saipan
rates and discounts are subject to change upon five (5) days written or electronic notice by WilTel
to Customer. All other Voice Service pricing, discounts, and non-recurring charges are subject to
change upon fifteen (15) days written or electronic notice by WilTel to Customer.

          b. All notices for Voice Service rates pursuant to this Schedule shall be as follows: Customer
and WilTel agree that Voice Service rate change notices shall be sent by either facsimile
transmission or electronic mail and are deemed to be received the day that the notice is sent by
WilTel. Notice by facsimile is sent when it is transmitted to the facsimile number designated by
the recipient as the facsimile number the recipient uses for the purpose of receiving facsimile

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Carrier Voice Services—Schedule 8

information. Notice by electronic mail is sent when it is addressed properly or otherwise
directed properly to an information processing system that the recipient has designated or uses for
the purpose of receiving electronic information of the type sent. If, after sending a notice by
electronic mail, WilTel receives an error or other message indicating that the electronic mail has
not entered a region of the information processing system outside of the control of WilTel, or, if
sent by facsimile, WilTel receives an error or other message indicating that the facsimile
transmission has not been properly transmitted to the designated facsimile number, WilTel shall
then send notice of the rate change via prepaid first class United States mail, in which case the
notice will be deemed to be effective on the fourth (4th) business day after the postmark date
thereof. For purposes of notice of this Section, the Customer shall designate an electronic mail
address and the contact name and title of a person authorized to receive the Voice Service rate
change notices by electronic mail; and a facsimile number and the contact name and title of a
person authorized to receive the rate change notices by facsimile transmission. Customer may
change this notice information by providing WilTel (30) thirty days written notice of such change.
Such notice shall be sent via email to voiceacctmgt@wcg.com.

	 	 	 
	Customer E-Mail Notification
	 	 
	 
	 	 
	Contact Name

	 	Steve Holden
	Contact Title:

	 	General Manager
	Contact E-mail Address:

	 	steveholden@starvoxenhancedservices.com
	Customer Facsimile Notification
	 	 
	 
	 	 
	Contact Name:

	 	Steve Holden
	Contact Title:

	 	General Manager
	Facsimile Number:

	 	214-485-1578 

          9.1 Planned Network Maintenance Period (“PNMP(s)”). WilTel shall avoid performing
PNMP between 0600 to 2200 local time, Monday through Friday. WilTel shall provide Customer with
electronic mail, telephone, facsimile, or written notice of a PNMP (i) not less than three (3)
business days prior to performing a PNMP that in WilTel’s reasonable opinion, has a substantial
likelihood of affecting Customer’s traffic for up to [fifty (50) milliseconds], or (ii) not less
than ten (10) business days prior to performing a PNMP that in WilTel’s reasonable opinion, has a
substantial likelihood of affecting Customer’s traffic for more than [fifty (50) milliseconds]. If
the PNMP is canceled or delayed, WilTel shall promptly notify Customer and shall comply with the
provisions of this Section 9.1 to reschedule the PNMP.

          9.2 Emergency Network Maintenance Period (“ENMP(s)”). It may be necessary for WilTel
to issue notification of an ENMP. ENMPs allow WilTel to perform mandated maintenance with a
shorter Customer notification interval than ENMPs.

          MPs are issued when maintenance is required immediately, e,g., to prevent further or repeated
interruptions on WilTel’s network.

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Carrier Voice Services—Schedule 8

     10. Warranty. WILTEL MAKES NO WARRANTY WITH RESPECT TO THE VOICE SERVICE PROVIDED
UNDER THIS SCHEDULE. WILTEL DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED INCLUDING WITHOUT
LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. NO
WARRANTY IS MADE OR PASSED ON WITH RESPECT TO ANY THIRD PARTY SERVICES.

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Internet Protocol Enabled Voice Services—Schedule 15

     This Internet Protocol Enabled Voice Service Schedule (“Schedule”) is part of the
agreement under which WilTel provides WilTel Service to Customer and which incorporates this
Schedule (the “Agreement”). Internet Protocol Enabled Voice Service shall not include any
Third Party Services.

          1.1 Internet Protocol (“IP”) Enabled Voice Service. Internet Protocol Enabled Voice
Service allows IP dedicated access to WilTel’s voice service (“IP-E Service”). IP
dedicated access to an IP-E Service can be accessed through WilTel’s dedicated internet access
service (“DIA Service”). WilTel’s multi-protocol label switching internet protocol virtual
private network service (“MPLS IPVPN Service”), WilTel’s voice only MPLS IPVPN Service,
and/or WilTel’s public or private peering points (“Peering”). Customer may select from one
of the two following options for IP-E Termination Service:

	 	ý	 	Internet Service Provider (“ISP”) Express Service. ISP Express
Service utilizes either time division multiplexing (“TDM”), DIA, MPLS
IPVPN, Peering interconnection to provide nationwide termination to ISPs.
ISP Express Service will be provided to Customer via dedicated access lines
(“DAL(s)”) connecting Customer’s facility and WilTel’s facility for
the termination of IP-E Service.
	 
	 	ý	 	Carrier LEC Toll Free /Carrier LEC Termination. Carrier LEC Toll
Free and Carrier LEC Termination Service is, respectively, the WilTel
domestic origination, and the domestic and/or international termination of
calls received from one or more connections between the Customer’s network
and the WilTel network at one or more WilTel points of presence
(“POP(s)”).

               a. D1A Service is a dedicated high-speed connection to the Internet provided solely on
WilTel’s network from a WilTel core IP point of presence (“Core IP POP”) with port speeds
from DS1 to OC12. Service level agreements (“SLA(s)”), service level objectives
(“SLO(s)”), outage credits and related warranties, are set forth in the DIA Service
Schedule.

               b .“Voice and data MPLS IPVPN Service” is a packet based transport service provided solely on
WilTel’s IP network from a Core IP POP to a Core IP POP. MPLS IP VPN Service provides a wide area
networking solution that combines the reach and flexibility of the Internet with the security,
reliability, and performance of a private network. MPLS IP VPN Service supports Customer’s
intranet, extranet, remote access and the IP-E connectivity needs. SLAs, SLOs, outage credits and
related warranties, are set forth in the MPLS IPVPN Service Schedule.

               c. “Voice only MPLS IPVPN Service” is a packet based transport service provided solely on
WilTel’s IP network from a Core IP POP to a Core IP POP. MPLS IP VPN Service provides a wide area
networking solution that combines the reach and flexibility of the Internet with the security,
reliability, and performance of a private network. MPLS IP VPN Service supports Customer’s IP-E
access connectivity needs. SLAs, SLOs, outage credits and related warranties, are set forth in the
MPLS IPVPN Service Schedule.

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Internet Protocol Enabled Voice Services—Schedule 15

               d. Peering is the point at which Customer’s ISP will exchange traffic with WilTel. Customer
is currently purchasing dedicated Internet access from an ISP and will exchange traffic with WilTel
via that Peering point.

          1.2 “Carrier LEC Toll Free Service”. Carrier LEC Toll Free Service is the WilTel
origination of toll free calls and the termination of such calls to one or more connections between
Customer’s network and the WilTel network at one or more WilTel POPs.

          1.3 “Toll Free Enhanced Service”. Toll Free Enhanced Service includes the following
enhanced service features.

               a. Toll Free Enhanced Service Features:

                    i. Responsible Organization (“RespOrg”). A RespOrg is the company responsible for
managing and administering the 800 subscriber’s records in the 800 Service Management System
(“SMS/800”). Managing and administering the SMS/800 consists of data entry, changing
records, accepting trouble reports and referring and/or clearing issues with regard to the 800
subscriber’s record. Customer has the option to select WilTel as RespOrg or act as its own
RespOrg.

                    ii. Area of Service (“AOS”). AOS is Customer’s pre-defined network serving area where
toll free origination is allowed. Four AOS plans are available; (i) XA – 48 contiguous United
States, Alaska, Hawaii and Canada; (ii) XB – 48 contiguous United States, Alaska, Hawaii, Puerto
Rico, United States Virgin Islands; (iii) XC – 48 contiguous United States, Alaska, Hawaii, Puerto
Rico, United States Virgin Islands, Guam and Canada; (iv) US – 48 contiguous United States, Alaska
and Hawaii.

                    iii. Network Availability. Toll free calls can originate and terminate within the
following areas:

                         A. Origination. Is offered in the 48 contiguous United States, Alaska, Hawaii,
Canada, Puerto Rico, United States Virgin Islands and Guam.

                         B. Termination. Toll free calls can terminate in the 48 contiguous United States,
Alaska, Hawaii and Canada.

                    iv. “National Toll Free Directory Assistance”. National Toll Free Directory
Assistance lists Customer’s toll free number as published or non-published in the AT&T National
Toll Free Directory Assistance database (1-800-555-1212).

                    v. Announcements/Custom Recordings. Customer may specify announcements or custom
recordings to complement its Toll Free Services. All recordings requested by Customer are subject
to approval of content by WilTel and recorded in WilTel’s professional recording studio.

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Internet Protocol Enabled Voice Services—Schedule 15

                    vi. Real-time Automatic Number Identification (“ANI”) Delivery. Real-time ANI
delivery transmits the calling party’s ten (10) digit telephone number to the Customer’s premises
allowing identification of the calling party. This feature is only available over DALs.

                    vii. Dialed Number Identification Service (”DNIS”) Directory. DNIS delivery
identifies two or more dialed toll free numbers received over a single trunk group. DNIS value
(2-12 digits) is defined per toll free number. This feature is only available over DALs.

                    viii. “Carrier Allocation Routing”. Carrier Allocation Routing enables allocation of
toll free calls across two or more interexchange carriers (“IXC”) based on a pre-defined
percentage of calls. Carrier Allocation Routing is defined in the national SMS.

                    ix. “Call Referral Recording”. Call Referral Recording enables calls to be treated
with a customized announcement. All recordings requested by Customer are subject to approval of
content by WilTel.

                    x. “Origin of Call Routing”. Origin of Call Routing routes calls based on the call’s
point of origin (“Calling Party ID”). Origin of Call Routing supports 3, 6, or 10-digit
routing. Calls may terminate to multiple, pre-defined locations. If Customer requires customized
AOS, Origin of Call Routing is necessary.

                    xi. “Percent Allocation Routing”. Percent Allocation Routing enables allocation of
toll free calls across two or more, pre-defined terminating locations based on a percent of calls.

                    xii. “Time Dependent Routing”. Time Dependent Routing allows Customer to route toll
free calls based upon time and date of call origination. Routing may be established based upon
holiday, day of year, day of week, or time of day.

                    xiii. “Menu Routing”. Menu Routing guides the dialing party through a list of
pre-defined menu options and routes the call to a desired destination.

                    xiv. “Extension Routing”. Extension Routing prompts the dialing party for a one (1)
to fifteen (15) digit extension number that is verified against a Customer defined list of valid
extensions and subsequently routed to a related destination.

                    xv. “Busy/No Answer Overflow”. Busy/No Answer Overflow enables toll free calls to
route to up to five (5) pre-defined alternate locations if the primary location is busy or does not
answer.

                    xvi. “Unvalidated Account Codes”. Unvalidated Account Codes are predefined by the
Customer and are verified against a specific digit length (2-12 digits) prior to call completion.

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Internet Protocol Enabled Voice Services—Schedule 15

                    xvii. “Authorization Codes”. Authorization Codes restrict access to Toll Free Service
by prompting the dialing party to enter a valid pre-determined Authorization Code prior to call
completion.

          1.4 “Carrier LEC Termination Service”. Carrier LEC Termination Service is the WilTel
domestic and/or international termination of calls received from one or more connections between
the Customer’s network and the WilTel network at one or more WilTel POPs.

          1.5 International Toll Free Service (“ITFS”). ITFS is an extension or feature of
WilTel’s existing domestic Carrier LEC Toll Free Service. When ordering ITFS Customer must be an
existing Carrier LEC Toll Free Service Customer, as international originated calls will terminate
to these existing Voice Service lines. ITFS is subject to availability and limitations invoked by
some foreign administrations as set forth in Section l.5(b) below. Installation intervals vary by
country and shall be determined on an individual case basis. For each ITFS number, the Customer
will be assessed a non-recurring set-up fee to activate the ITFS and a per minute usage charge per
country.

               a. FTPS Features:

                    i. Network Availability. Toll free calls can originate and terminate within the
following areas:

                         A. Origination. Offered from a large number of countries as set forth in the Rate
Attachment.

                         B. Termination. Toll free calls can terminate in the 48 contiguous United States,
Alaska, Hawaii, and Canada,

                    ii. “Time Dependent Routing”. Time Dependent Routing allows Customer to route toll
free calls based upon time and date of call origination. Routing may be established based upon
holiday, day of year, day of week, or time of day.

                    iii. “Busy/No Answer Overflow”. Busy/No Answer Overflow enables toll free calls to
route to up to five (5) pre-defined alternate locations if the primary location is busy or does not
answer.

                    iv. Dialed Number Identification Service (“DNIS”) Delivery. DNIS Delivery identifies
two or more dialed toll free numbers received over a single trunk group. DNIS value (2-12 digits)
is defined per toll free number. This feature is only available over DALs.

                    v. “Blocking”. Blocking will be available at the country level, and can be activated
with a twenty-four (24) hour lead-time.

               b. ITFS Limitations and Restrictions. ITFS is subject to certain limitations and
restrictions as set forth in the ITFS Access and Restrictions Guide, which can be

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Internet Protocol Enabled Voice Services—Schedule 15

located at http://www.wiltel.com/customers/content/guidelines.htm. For example, country
availability may be limited in certain worldwide locations, and some countries may restrict
availability for calling card use or condition availability on Customer’s provision of information.
Additional features may be available from time to time.

          2.1 IP-E Service Rates. Customer’s pricing, and discounts for IP-E Services are set
forth in the attached rate attachments (“Rate Attachment”). The pricing for IP-E Services
in the Rate Attachments represents “Base Rates” and does not reflect any discount for
volume achievement (in dollars) or Revenue Commitment (in dollars and term) as defined below, if
applicable.

               a. IP-E Service Discount. The Customer’s discount to its IP-E Base Rates, if any, is
set forth in Rate Attachment A-lb, and may fluctuate each month based on Customer’s actual volume.
In order to determine Customer’s discount for IP-E Services, if any, in any month during the Term
of the Agreement, WilTel will calculate on a monthly basis, Customer’s volume in dollars by
aggregating Customer’s total charges for IP-E Services for interstate, intrastate, and
international usage (“Total Service Charges”). Total Service Charges do not include any
payments or charges for late charges, non-recurring charges, interest, taxes and other
government-imposed surcharges, or payments made by Customer for Third Party Services. Customer’s
Total Service Charges for the month will then be compared against the volume discount structure set
forth in Rate Attachment A-lb. Customer will then receive the discount associated with the volume
level actually achieved.

          2.2 Pricing and Charges. Charges for DIA Service and/or MPLS IPVPN Service include
monthly recurring charges (“MRC(s)”) and non-recurring charges (“NRC(s)”) as set
forth in applicable Service Order and/or quote (“Quote”) referenced in such Service Order,
and are further subject to the terms and conditions of the applicable DIA and/or MPLS IPVPN Service
Schedules.

               a. DIA Service and Voice and data MPLS IPVPN Service Discount. In order to determine
Customer’s discount for DIA Service and Voice and data MPLS IPVPN Service, if any, in any month
during the Term of the Agreement, WilTel will calculate on a monthly basis, Customer’s volume of
voice minutes of usage (“MOU”) per megabytes (“Megs”) as set forth in the table
below.

	 	 	 	 	 
	DIA Service and Voice and
	data MPLS IPVPN Service Discounts
	MOU/Meg	 	Discount Scale
	> 400 K
	 	 	100	%
	> 300 K
	 	 	75	%
	> 200 K
	 	 	50	%
	> 100 K
	 	 	25	%
	< 100 K
	 	 	0	%

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Internet Protocol Enabled Voice Services—Schedule 15

          2.3 Acceptance of Quote. All rates set forth in the attached Rate Attachment
identified as quote #l-MZ12M, are hereby accepted by Customer.

     3. Customer Representations and Responsibilities. Customer agrees to the following
representations and responsibilities,

          3.1 Customer Representations. Customer represents and warrants that it shall have
appropriate certificates of public convenience and necessity, licenses and all required regulatory
approvals and that it will be legally authorized to provide service as contemplated under the terms
and conditions of this Schedule and the Agreement before such IP-E Service is requested by
Customer. Customer represents and warrants that it will immediately notify WilTel in the event
such certificates of public convenience and necessity, licenses or other required regulatory
approvals should be revoked, suspended or, for whatever reason, cease to be effective.

          3.2 Customer’s Responsibility for Fraudulent Calls. Customer shall be responsible for
all costs, expenses, claims or actions arising from all calls relating to Customer’s or its end
users use of IP-E Services including those calls the purpose or effect of which is theft or
unauthorized usage of communications services or misleading or fraudulent communications of any
nature (including, without limitation, communications intended to effect theft through unauthorized
use of calling cards) and all unauthorized or fraudulent communications on pay-per-call numbers,
information service calls, directory assistance calls or the like for which WilTel is billed that
are passed through to the Customer for billing to Customer’s customers) (collectively,
“Fraudulent Calls”). Customer shall not be excused from paying WilTel for any IP-E
Services provided to Customer or any portion thereof on the basis that Fraudulent Calls comprised a
corresponding portion of the IP-E Services. In the event WilTel discovers Fraudulent Calls being
made (or reasonably believes Fraudulent Calls are being made), WilTel shall immediately notify
Customer. Notwithstanding the foregoing, nothing contained herein shall prohibit WilTel from
taking immediate action (within one (1) hour of WilTel’s first attempt to notify Customer) that is
reasonably necessary to prevent such Fraudulent Calls from taking place, including without
limitation, denying any IP-E Services to particular ANIs or terminating any IP-E Services to or
from specific affected locations.

          3.3 Customer’s Responsibility for Traffic Forecast. Before issuing its first Service
Order and on a quarterly basis throughout the Term of the Agreement, Customer shall provide WilTel
with a rolling one-year forecast:

               a. for domestic IP-E Service, specifying the number of minutes expected to be terminated or
originated in various local access transport areas (“LATA(s)”) and/or tandems, and

               b. for international IP-E Service, the number of minutes expected to be originated from or
terminated to each country for which Customer will seek IP-E Service.

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Internet Protocol Enabled Voice Services—Schedule 15

          3.4 Customer Responsibility for Equipment. Customer is responsible for ensuring that
the end user of any DAL has proper equipment to terminate a standard T-l, ISDN PRI T-l or a T-3 and
to meet FCC interconnection standards. Customer or Customer’s end user is also responsible for all
costs at its premises incurred in the use of IP-E Service, including but not limited to equipment,
wiring, electrical power, and personnel. If WilTel begins the installation process but Customer
does not have the necessary equipment available, Customer will reimburse WilTel all costs that
WilTel has incurred and WilTel will not be liable to provide any IP-E Service to Customer or
Customer’s end user until and unless Customer or Customer’s end user has the necessary equipment.

          3.5 Customer’s Additional Responsibilities: Customer shall:

               a. subject to the terms of clause g. below, not use WilTel’s name, trademarks, trade names,
service marks or logos in connection with the provision of service to its end users including, but
not limited to, all billing and collection services;

               b. use its own product names which do not identify WilTel products;

               c. accept responsibility for all interaction and interface with its end users. Customer shall
be solely responsible for end user solicitation, service requests, creditworthiness, customer
service, billing, billing adjustments and collection. Regardless of its arrangement with its end
users or any claims an end user may have against it, the Customer remains responsible for
compliance with all terms and conditions of the Agreement, including but not limited to payment of
all charges for IP-E Services furnished to the Customer or an authorized end user, regardless of
any use, misuse or abuse of the Customer’s service or Customer equipment by third parties, the
Customer’s employees or the public and regardless of Customer’s inability to charge for services
used by end users or to collect payment from end users;

               d. have sole responsibility for installation, testing and operation of facilities, services
and equipment other than those specifically provided by WilTel as part of the IP-E Services
(“Customer Facilities”) as described in a Service Order. In no event will the untimely
installation or non-operation of Customer Facilities relieve Customer of its obligation to pay
charges for the IP-E Services on the WilTel turn-up date as provided to Customer in WilTel’s order
confirmation document.

               e. comply with the rules and guidelines concerning Local Number Portability (“LNP”);

               f. be responsible for the security of Authorization Codes used by Customer or its end users.
All calls placed using such Authorization Codes or using Customer Facilities owned or controlled by
Customer or its end users will be billed to Customer and must be paid by Customer;

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Internet Protocol Enabled Voice Services—Schedule 15

               g. not use or permit others to use the IP-E Services in a manner that could interfere with
IP-E Services provided to others or that could harm the facilities of WilTel or others. Such
impermissible uses include, but are not limited to, equipment malfunctions, connection of
unauthorized equipment, mass calling events, inadequate Customer trunking, excessive non-completed
calls, and excessive invalid calls. WilTel may, without liability, initiate immediate action
including, but not limited to, interruption of all Customer’s traffic without notice, to prevent or
terminate such activities;

               h. use the WilTel name only in post-sale communications which inform end users that WilTel is
the underlying carrier and that WilTel’s name may appear on copies of end user’s local phone bills
using specific language authorized by WilTel.

     4. Other Charges and Surcharges.

          4.3 Usage Charges. Usage charges are based on the actual usage of WilTel facilities.
Such charges are measured in Conversation Minutes as defined below. Conversation Minutes begin
when the called party answers, as determined by answer supervision, and end when either party
disconnects (“Conversation Minutes”). The minimum call duration for billing purposes is:
(a) for the 48 contiguous United States, Alaska, Hawaii, Puerto Rico, US Virgin Islands, Guam, and
Saipan IP-E Service, six (6) seconds minimum initial period and usage is rounded to the next higher
six (6) second increment after the initial period: (b) for international IP-E Service except
Mexico, thirty (30) seconds minimum initial period and usage is rounded to the next higher six (6)
second increment after the initial period; for IP-E Service to and from Mexico, sixty (60) seconds
minimum initial period and usage is rounded to the next higher sixty (60) second increment after
the initial period.

          4.4 Chargeable Time. Chargeable time for Customer shall begin when the called party
answers, as determined by answer supervision, provided that such capabilities are available from
the local telephone company. If answer supervision is not available and the duration of a call is
at least one hundred and fifty (150) seconds, WilTel will bill for such call for a duration of one
hundred and twenty (120) seconds (inclusive of a thirty second call setup time). Chargeable time
for a call shall end upon disconnection by either party.

          4.3 Voice only MPLS IPVPN Minimum Usage Charge (per Port). Customer’s dedicated ports
must have minimum IP-E usage of [$400] per each Meg or a [$3,500] per Meg charge wilt be applied as
line item shortfall. Minimum usage charges are restricted to usage only and non-recurring charges
including but not limited to taxes or interest do not count towards the minimum. This charge
applies to any Voice only MPLS IPVPN Megs. A national aggregate of qualifying Voice only MPLS
IPVPN Megs will be calculated of Customer’s monthly Voice only MPLS IPVPN MOUs. The aggregate
Voice only MPLS IPVPN MOU will then be divided by the total number of Customer Voice only MPLS
IPVPN Megs to arrive at an average usage per Voice only MPLS IPVPN Megs. The average usage per
Voice only MPLS IPVPN Megs will be used to estimate if Customer has met the minimum Voice only MPLS
IPVPN revenue per Meg for that month. In the event the average usage per Voice only MPLS IPVPN
Megs is below the minimum

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Internet Protocol Enabled Voice Services—Schedule 15

IP-E revenue commitment, a line item shortfall will be calculated at the Voice only MPLS IPVPN
Megs will be invoiced.

          4.4 Surcharges. WilTel will assess against Customer and Customer will be responsible
for paying certain surcharges in addition to the IP-E Service Rates as described in Section 2.1,
for use of IP-E Services. These surcharges are described below:

               a. Non-Completed Calls. A surcharge shall be assessed when Customer’s domestic toll
free and international toll free non-completed calls exceed ten percent (10%) of Customer’s overall
toll free and international toll free traffic, respectively, in a billing month.

               b. Payphone Surcharges. Except as set forth in the Federal Communication Commission’s
(“FCC’s”) Payphone Compensation rules (47 C.F.R. §64.1300) or in a separate written and
duly executed schedule or agreement, to the extent Customer is the Completing Carrier under the
FCC’s rules: (i) Customer shall assume direct responsibility pursuant to such rules for payment of
compensation to Payphone Service Providers (“PSPs”), (ii) WilTel shall have no obligation
relating to such Customer compensation, including without limitation any obligation to track,
collect, reconcile, or provide data relating to such calls, (iii) Customer shall have no liability
to pay Payphone Surcharges to WilTel, (iv) WilTel shall have no obligation to provide PSPs with
compensation for Customer’s calls, and (v) Customer shall, upon WilTel’s written request, provide
any information required to rebut any claim by a regulatory body, PSP, external auditor, or
clearinghouse that WilTel is obligated to compensate PSPs for such calls. To the extent Customer
is not designated as the Completing Carrier for Customer calls, Customer will be subject to a per
call payphone surcharge to the extent payphone compensation obligations apply to such calls under
the FCC’s rules (47 C.P.R. § 64.1300 et seq.).

     5. Traffic Jurisdiction Determination.

          a. If WilTel provides any IP-E Service for which the rates or other terms and conditions
depend on the jurisdictional nature (interstate, including international, or intrastate) of
Customer traffic, WilTel shall be entitled to determine the jurisdiction of such traffic to the
extent WilTel can make such a determination based on call detail information.

          b. To the extent WilTel cannot make such a determination with respect to traffic
(“Indeterminate Traffic”), Customer shall determine the percentage of interstate (including
international) and intrastate minutes of use for such Indeterminate Traffic and shall, at WilTel’s
request, promptly provide WilTel with a written certification (“Traffic Jurisdiction
Certification”) of such percent in a form acceptable to WilTel for each state of
interconnection. Traffic Jurisdiction Certifications may be modified from time to time by
Customer, and are subject to recertification upon the request of WilTel, which requests shall not
be made unilaterally by WilTel more than once each calendar quarter. Initial or modified Traffic
Jurisdiction Certifications shall be effective prospectively as of the first day of the next
calendar month if received by the fifteenth (15th) day of the month. If received after the
fifteenth (15th) day of the month, the initial or modified Traffic Jurisdiction Certifications
shall be effective the first day of the month following the next calendar month.

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Internet Protocol Enabled Voice Services—Schedule 15

          c. Until Customer provides a Traffic Jurisdiction Certification for an interconnection or if
Customer fails to make any required recertification for an interconnection, the relevant minutes of
use for such Indeterminate Traffic will be deemed to be [fifty percent (50%)] interstate and [fifty
percent (50%)] intrastate. WilTel may (i) rely on such Traffic Jurisdiction Certification in its
own percent interstate usage (“PIU”) filings and (ii) file any such Traffic Jurisdiction
Certification with any governmental authority, Third Party Provider, or local exchange carrier
(“LEC”).

          d. If WilTel disputes the reasonableness of the Traffic Jurisdiction Certification(s) or a
Traffic Jurisdiction Certification varies by more than five (5) percentage points from the
preceding Traffic Jurisdiction Certification, WilTel may require Customer to provide at its own
expense the data Customer used to determine the projected traffic jurisdiction and other relevant
information (such as Source File and billing system information) reasonably necessary to determine
the accuracy of the Traffic Jurisdiction Certification(s) (collectively, “Traffic Jurisdiction
Data”). Such audits shall be limited to no more than one (1) per year, except where additional
audits may be required to verify allocation changes that represent a five (5) percentage point
shift from Customer’s most recent Traffic Jurisdiction Certification, and such change is not (in
WilTel’s reasonable opinion) the result of seasonal shifts or other identifiable reasons. If such
an audit results in a traffic jurisdiction determination that differs from the Traffic Jurisdiction
Certification, the traffic jurisdiction determination that results from the audit shall govern.
Without limiting the foregoing, if any governmental authority, LEC, or Third Party Provider
requires an audit of WilTel PIU reports, or to the extent such governmental authority or entity is
entitled to audit the jurisdiction of Customer’s traffic, Customer shall cooperate in such audit at
its expense and make its underlying Traffic Jurisdiction Data available to WilTel solely for the
purpose of verifying Customer’s traffic jurisdiction. If WilTel requests such data, Customer shall
make it available to WilTel for inspection and copying within fifteen (15) calendar days of such
request.

          e. Customer stall indemnify WilTel for any liability or costs (including, without limitation,
any back-billing, interest, penalties, legal fees, and legal expenses) WilTel incurs as a result of
(i) any variance between the percentages in any Traffic Jurisdiction Certification and those
determined by any such audit, (ii) any inaccuracies in WilTel’s PIU reports resulting from
Customer’s failure to provide or recertify a Traffic Jurisdiction Certification, (iii) Customer’s
provision of inaccurate information, (iv) Customer’s alteration or deletion of real-time traffic
information, or (v) Customer’s failure to provide accurate Traffic Jurisdiction Data.

     6. Applicability of Tariffs.

          a. Interstate Services. For interstate and international IP-E Service, the parties
hereby agree that the Agreement, to the extent it is subject to FCC regulation, is an inter-carrier
agreement not subject to the tariff filing requirements of Section 203(a) of the Communications Act
of 1934, as amended. All terms, conditions, and prices for the IP-E Services provided by WilTel
under the Agreement, to the extent they are telecommunications services subject to FCC regulation,

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Internet Protocol Enabled Voice Services—Schedule 15

shall be those terms, conditions, and prices contained in the Agreement and related documents,
and not those contained in any WilTel federal tariff.

          b. Intrastate Services. Where WilTel is authorized to provide intrastate IP-E
Services, the provision of such IP-E Service shall be at the rates stated in and in accordance with
the terms and conditions of WilTel’s applicable intrastate tariff or otherwise in accordance with
applicable state law.

          c. Modification of Tariffs. WilTel may modify or withdraw tariffs from time to time,
which may result in the discontinuation of any IP-E Service. WilTel shall have no liability for
any such discontinuation. In the event WilTel withdraws its filed tariffs, the tariff terms and
conditions in effect on the date of such withdrawal will continue to apply to the Agreement. After
withdrawal of the applicable tariffs, the terms of the Agreement will control over any inconsistent
provision in the former tariffs, subject to standard contract interpretation rules. Tariffs not
withdrawn shall continue to have the same force and effect.

     7. Backhaul. WilTel will absorb all backhaul costs between a WilTel POP and the
nearest WilTel voice switch. In exchange areas where there is a Third Party Provided POP and not a
WilTel POP, WilTel may provide Third Party Provided IXC backhaul service at rates to be determined
on an individual case basis.

     8. Change Notice.

          a. Customer’s international, Alaska, Hawaii, Puerto Rico, US Virgin Islands, Guam, and Saipan
rates and discounts are subject to change upon five (5) days written or electronic notice by WilTel
to Customer. All other IP-E Service pricing, discounts, and non-recurring charges are subject to
change upon fifteen (15) days written or electronic notice by WilTel to Customer.

          b. All notices for IP-E Service rates pursuant to this Schedule shall be as follows: Customer
and WilTel agree that IP-E Service rate change notices shall be sent by either facsimile
transmission or electronic mail and are deemed to be received the day that the notice is sent by
WilTel. Notice by facsimile is sent when it is transmitted to the facsimile number designated by
the recipient as the facsimile number the recipient uses for the purpose of receiving facsimile
information. Notice by electronic mail is sent when it is addressed properly or otherwise directed
properly to an information processing system that the recipient has designated or uses for the
purpose of receiving electronic information of the type sent. If, after sending a notice by
electronic mail, WilTel receives an error or other message indicating that the electronic mail has
not entered a region of the information processing system outside of the control of WilTel, or, if
sent by facsimile, WilTel receives an error or other message indicating that the facsimile
transmission has not been properly transmitted to the designated facsimile number, WilTel shall
then send notice of the rate change via prepaid first class United States mail, in which case the
notice will be deemed to be effective on the fourth (4th) business day after the postmark date
thereof. For purposes of notice of this Section, the Customer shall designate an electronic mail
address and the contact name and title of a person authorized to receive the IP-E Service rate
change notices by electronic mail; and a

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Internet Protocol Enabled Voice Services—Schedule 15

facsimile number and the contact name and title of a person authorized to receive the rate
change notices by facsimile transmission. Customer may change this notice information by providing
WilTel (30) thirty days written notice of such change. Such notice shall be sent via email to
voiceacctmgt@wcg.com.

	 	 	 
	Customer E-Mail Notification
	 	 
	Contact Name

	 	Steve Holden
	Contact Title:

	 	General Manager
	Contact E-mail Address:

	 	steveholden@starvoxenhancedservices.com
	Customer Facsimile Notification
	 	 
	Contact Name:

	 	Steve Holden
	Contact Title:

	 	General Manager
	Facsimile Number:

	 	214-485-1578 

          9.1 Planned Network Maintenance Period (“PNMP(s)”). WilTel shall avoid performing
PNMP between 0600 to 2200 local time, Monday through Friday. WilTel shall provide Customer with
electronic mail, telephone, facsimile, or written notice of a PNMP (i) not less than three (3)
business days prior to performing a PNMP that in WilTel’s reasonable opinion, has a substantial
likelihood of affecting Customer’s traffic for up to [fifty (50)] milliseconds, or (ii) not less
than ten (10) business days prior to performing a PNMP that in WilTel’s reasonable opinion, has a
substantial likelihood of affecting Customer’s traffic for more than [fifty (50)] milliseconds. If
the PNMP is canceled or delayed, WilTel shall promptly notify Customer and shall comply with the
provisions of this Section 9.1 to reschedule the PNMP.

          9.2 Emergency Network Maintenance Period (“ENMP(s)”). It may be necessary for WilTel
to issue notification of an ENMP. ENMPs allow WilTel to perform mandated maintenance with a
shorter Customer notification interval than ENMPs. MPs are issued when maintenance is required
immediately, e,g., to prevent further or repeated interruptions on WilTel’s network.

     10. “911/E911” and “CALEA”. Customer and WilTel acknowledge their awareness of
various pending state and federal regulatory actions which may affect the nature and treatment of
IP-E Service traffic including the determination as to the appropriate obligations of IP-E Service
providers with regard to 911/E911 and CALEA obligations. WilTel and Customer further recognize
that additional governmental action, ruling, or interpretation thereof, including but not limited
to legislative action, might be taken to address the public safety obligations of IP-E Service
providers. WilTel and Customer mutually agree to immediately conform this Agreement and the
resulting network service arrangements in order to comply with any regulatory or governmental law,
action, order or ruling, or the interpretation or application thereof related to such obligations.

          10.1 911/E911. WilTel and Customer agree Customer will provide all of Customer’s end
users with notice that IP-E Services may not be 911/E911 and CALEA compliant and Customer shall
obtain from its end users adequate waivers releasing Customer and WilTel of

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Internet Protocol Enabled Voice Services—Schedule 15

any and all liabilities that may arise out of claims that could be brought related to 911/E911
and CALEA compliance issues. To the extent that Customer provides alternative 911 services (herein
referred to as “Alternative 911”) on a mandatory or optional basis, Customer shall provide
its end users with adequate notice as to: (1) the process for ordering, establishing, and
maintaining the Alternative 911 services; (2) the feature functionality differences between the
Alternative 911 service and standard 911/E911 services; and (3) notice that WilTel will not be
liable to Customer for any third party claims arising out of Customer’s provision of such services
to Customer’s end users. WilTel and Customer agree to work jointly to establish business
processes, where necessary, to address the provisioning of Alternative 911 services on an ICB
basis. Customer agrees to compensate WilTel for any additional costs associated with WilTel’s
provisioning of services in support of Customer’s Alternative 911 service arrangements.

          WilTel and Customer agree that WilTel’s sole responsibility with regard to the provision of
911/E911 or Alternative 911 services for Customer’s end users is the obligation to ensure that the
interconnection trunking arrangements are 911/E911 compatible. Customer bears sole responsibility
for the provisioning of 911/E911 or Alternative 911 services to its end users and for any costs
associated with the provisioning of these services including but not limited to interconnecting
with the appropriate 911 Public Service Access Point (“PSAP”) and the payment of any
governmental fees or assessments related to 911/E911 or Alternative 911 services. Customer agrees
to indemnify and hold WilTel and all of its affiliates, subsidiaries and employees, shareholders,
agents, vendors and representatives harmless for any and all claims, damages (direct and indirect),
suits, costs, charges or fees (including attorney’s fees and court costs) or related to the
provision of 911/E911E services associated with the provision of Customer’s IP-E Services and any
Services described herein.

          10.2 CALEA. WilTel and Customer understand and agree that there is uncertainty regarding the
obligations of IP-E Voice Service providers as it relates to compliance with CALEA obligations.
Nonetheless, WilTel and Customer agree to put forth their best efforts in order to respond within
the requested parameters to any CALEA request presented related to the IP-E Service offered
pursuant to the Agreement or to services that Customer may be providing to end user’s utilizing
Services set forth in this Agreement. Notwithstanding the foregoing, WilTel and Customer agree
that Customer bears the sole responsibility with regard to compliance with CALEA obligations and
any requests that may be presented related to Services provided under this Agreement. Customer
agrees to indemnify and hold WilTel and all of its affiliates, subsidiaries and employees,
shareholders, agents, vendors and representatives harmless for any and all claims, damages (direct
and indirect), suits, costs, charges or fees (including attorney’s fees and court costs) arising
from or related to compliance with CALEA obligations that arise from the provision of Customer’s
IP-E Services and any Services described herein.

     11. Warranty. WILTEL MAKES NO WARRANTY WITH RESPECT TO THE IP-E SERVICE PROVIDED
UNDER THIS SCHEDULE. WILTEL DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED INCLUDING WITHOUT
LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS

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Internet Protocol Enabled Voice Services—Schedule 15

FOR A PARTICULAR PURPOSE. NO WARRANTY IS MADE OR PASSED ON WITH RESPECT TO ANY THIRD PARTY
SERVICES.

-14-

 

AMENDMENT 1

To WilTel Global Voice Services Agreement

     This Amendment 1 (“Amendment”) is made and entered into July 19, 2005 (“Effective
Date”) by and between WilTel Global Voice Services, a division of WilTel Communications, LLC
(“WGVS”), and StarVox Communications, Inc. (as successor in interest to New Global Telecom,
Inc. (“Supplier”).

     WHEREAS, Supplier and WilTel Communications, LLC (“WilTel”) are parties to that
certain Wholesale Master Service Agreement dated April 25, 2005, WilTel Contract #05R0586.00 (the
“StarVox Purchase Agreement”); and

     WHEREAS, upon WGVS’ consent, Supplier assumed that certain WilTel Global Voice Services
Agreement dated March 15, 2004, WGVS Contract #04B0346.00 (the “Agreement”) from New Global
Telecom, Inc.;

     WHEREAS, WGVS and Supplier are parties to the Agreement; and

     WHEREAS, WGVS and Supplier desire to amend the Agreement;

     NOW, THEREFORE in consideration of the foregoing premises and the mutual promises and
covenants of the parties hereto, the receipt and sufficiently of which is hereby acknowledged, WGVS
and Supplier agree to amend the Agreement as follows:

	 	1.	 	The following shall be added as a new Section 3.5 to the Agreement:
	 
	 	 	 	“3.5 Offset. The Parties acknowledge and agree that upon prior written notice
undisputed invoiced amounts for voice Services due hereunder shall be offset against
undisputed invoiced amounts for voice Services due under the Wholesale Master
Services Agreement for Supplier’s purchase of wholesale telecommunications services
from WilTel entered into April 25, 2005 (“StarVox Purchase Agreement”) and
that the party in the net debtor position after such netting shall make payment in
accordance with the applicable agreement. If set-off is not permitted or payment is
not made by the Due Date for any reason, Supplier shall have the express right to
recoup undisputed amounts for voice Services owed to it under this Agreement from
amounts it is holding for payment of voice Services to WilTel under the StarVox
Purchase Agreement.”
	 
	 	2.	 	Except as specifically amended herein, all terms, conditions and provisions
contained in the Agreement shall remain unchanged and in full force and effect.
	 
	 	3.	 	This Amendment may be executed in one or more counterparts, each of which shall
be deemed an original and all of which together shall constitute one and the same
agreement. Facsimile signatures shall be deemed original signatures.

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Internet Protocol Enabled Voice Services—Schedule 15

     IN WITNESS WHEREOF, the parties have executed this Amendment on the day and year last set
forth below but to be effective on the Effective Date.

	 	 	 	 	 	 	 
	STARVOX COMMUNICATIONS, INC.:

	 	 	 	WILTEL COMMUNICATIONS, LLC:	 	 
	 
	 	 	 	 	 	 
	/s/James S. Holden
 

Signature of Authorized Representative

	 	 
	 	/s/Shaun Andrews
 

Signature of Authorized Representative
	 	 
	 
	 	 	 	 	 	 
	James S. Holden
 

Print Name

	 	 
	 	Shaun Andrews
 

Print Name
	 	 
	 
	 	 	 	 	 	 
	General Manager
 

Title

	 	 
	 	Director
 

Title
	 	 
	 
	 	 	 	 	 	 
	7/19/05
 

Date

	 	 
	 	7/20/05
 

Date
	 	 

-2-

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