Document:

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                                                                     EXHIBIT 4.3

                        SPRINT CORPORATION, as Guarantor
                      SPRINT CAPITAL CORPORATION, as Issuer
                                 $1,750,000,000
                              6.000% Notes due 2007

                          REGISTRATION RIGHTS AGREEMENT

                                                              New York, New York
                                                                November 2, 2001

Banc of America Securities LLC
Lehman Brothers Inc.
As Representatives of the Initial Purchasers

Ladies and Gentlemen:

     Sprint Capital Corporation, a corporation organized under the laws of
Delaware ("Sprint Capital") and a wholly owned finance subsidiary of Sprint
Corporation, a Kansas corporation ("Sprint"; Sprint, together with Sprint
Capital, jointly and severally, being hereafter called the "Company"), proposes
to issue and sell to certain purchasers (the "Initial Purchasers"), upon the
terms set forth in a purchase agreement dated October 30, 2001 (the "Purchase
Agreement"), $1,750,000,000 aggregate principal amount of 6.000% senior notes
due 2007 guaranteed by Sprint (a "guarantee") (each, a "Security" and
collectively the "Securities") pursuant to the Indenture relating to the initial
placement of the Securities (the "Initial Placement"). To induce the Initial
Purchasers to enter into the Purchase Agreement and to satisfy a condition of
your obligations thereunder, the Company agrees with you for your benefit and
the benefit of the holders from time to time of the Securities (including the
Initial Purchasers) (each a "Holder" and, together, the "Holders"), as follows:

     1. Definitions. Capitalized terms used herein without definition shall have
        -----------
the respective meanings set forth in the Purchase Agreement. As used in this
Agreement, the following capitalized defined terms shall have the following
meanings:

     "Act" shall mean the Securities Act of 1933, as amended, and the rules and
regulations of the Commission promulgated thereunder.

     "Affiliate" of any specified person shall mean any other person that,
directly or indirectly, is in control of, is controlled by, or is under common
control with, such specified person. For purposes of this definition, control of
a person shall mean the power, direct or indirect, to direct or cause the
direction of the management and policies of such person whether by contract or
otherwise; and the terms "controlling" and "controlled" shall have meanings
correlative to the foregoing.

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     "Broker-Dealer" shall mean any broker or dealer registered as such under
the Exchange Act.

     "Business Day" shall mean any day other than a Saturday, a Sunday or a
legal holiday or a day on which banking institutions or trust companies are
authorized or obligated by law to close in New York City.

     "Commission" shall mean the Securities and Exchange Commission.

     "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended,
and the rules and regulations of the Commission promulgated thereunder.

     "Exchange Offer Prospectus" shall mean the prospectus included in the
Exchange Offer Registration Statement, as amended or supplemented by any
prospectus supplement, with respect to the terms of the offering of any portion
of the New Securities covered by such Exchange Offer Registration Statement, and
all amendments and supplements thereto and all material incorporated by
reference therein.

     "Exchange Offer Registration Period" shall mean the 180 day period
following the consummation of the Registered Exchange Offer, exclusive of any
period during which any stop order shall be in effect suspending the
effectiveness of the Exchange Offer Registration Statement.

     "Exchange Offer Registration Statement" shall mean a registration statement
of the Company on an appropriate form under the Act with respect to the
Registered Exchange Offer, all amendments and supplements to such registration
statement, including post-effective amendments thereto, in each case including
the Exchange Offer Prospectus contained therein, all exhibits thereto and all
material incorporated by reference therein.

     "Exchanging Dealer" shall mean any Holder (which may include any Initial
Purchaser) that is a Broker-Dealer and elects to exchange for New Securities any
Securities that it acquired for its own account as a result of market-making
activities or other trading activities (but not directly from the Company or any
Affiliate of the Company).

     "Holder" shall have the meaning set forth in the preamble hereto.

     "Indenture" shall mean the Indenture relating to the Securities, dated as
of October 1, 1998, among Sprint, Sprint Capital and Bank One, N.A., as trustee,
as supplemented by the first supplemental indenture dated as of January 15,
1999, and the second supplemental indenture dated as of October 15, 2001.

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     "Initial Placement" shall have the meaning set forth in the preamble
hereto.

     "Initial Purchaser" shall have the meaning set forth in the preamble
hereto.

     "Losses" shall have the meaning set forth in Section 7(d) hereof.

     "Majority Holders" shall mean the Holders of a majority of the aggregate
principal amount of Securities registered under a Registration Statement.

     "Managing Underwriters" shall mean the investment banker or investment
bankers and manager or managers that shall administer an underwritten offering.

     "New Securities" shall mean debt securities of the Company identical in all
material respects to the Securities (except that the interest rate step-up
provisions and the transfer restrictions shall be modified or eliminated, as
appropriate) and to be issued under the Indenture or the New Securities
Indenture.

     "New Securities Indenture" shall mean an indenture between the Company and
the New Securities Trustee, identical in all material respects to the Indenture
(except that the interest rate step-up provisions will be modified or
eliminated, as appropriate).

     "New Securities Trustee" shall mean the Trustee or a bank or trust company
reasonably satisfactory to the Initial Purchasers, as trustee with respect to
the New Securities under the New Securities Indenture.

     "Prospectus" shall mean the prospectus included in any Registration
Statement (including, without limitation, a prospectus that discloses
information previously omitted from a prospectus filed as part of an effective
registration statement in reliance upon Rule 430A under the Act), as amended or
supplemented by any prospectus supplement, with respect to the terms of the
offering of any portion of the Securities or the New Securities covered by such
Registration Statement, and all amendments and supplements thereto and all
material incorporated by reference therein.

     "Purchase Agreement" shall have the meaning set forth in the preamble
hereto.

     "Registered Exchange Offer" shall mean the proposed offer of the Company to
issue and deliver to the Holders of the Securities that are not prohibited by
any law or policy of the Commission from participating in such offer, in
exchange for the Securities, a like aggregate principal amount of the New
Securities.

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     "Registration Statement" shall mean any Exchange Offer Registration
Statement or Shelf Registration Statement that covers any of the Securities or
the New Securities pursuant to the provisions of this Agreement, any amendments
and supplements to such registration statement, including post-effective
amendments (in each case including the Prospectus contained therein), all
exhibits thereto and all material incorporated by reference therein.

     "Securities" shall have the meaning set forth in the preamble hereto.

     "Shelf Registration" shall mean a registration effected pursuant to Section
3 hereof.

     "Shelf Registration Period" has the meaning set forth in Section 3(b)
hereof.

     "Shelf Registration Statement" shall mean a "shelf" registration statement
of the Company pursuant to the provisions of Section 3 hereof which covers some
or all of the Securities or New Securities, as applicable, on an appropriate
form under Rule 415 under the Act, or any similar rule that may be adopted by
the Commission, amendments and supplements to such registration statement,
including post-effective amendments, in each case including the Prospectus
contained therein, all exhibits thereto and all material incorporated by
reference therein.

     "Trustee" shall mean the trustee with respect to the Securities under the
Indenture.

     "underwriter" shall mean any underwriter of Securities in connection with
an offering thereof under a Shelf Registration Statement.

     2. Registered Exchange Offer. (a) The Company shall prepare and, not later
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than 90 days following the date of the original issuance of the Securities,
shall file with the Commission the Exchange Offer Registration Statement with
respect to the Registered Exchange Offer. The Company shall use its reasonable
best efforts to cause the Exchange Offer Registration Statement to become
effective under the Act within 210 days of the date of the original issuance of
the Securities.

     (b) Upon the effectiveness of the Exchange Offer Registration Statement,
the Company shall promptly commence the Registered Exchange Offer, it being the
objective of such Registered Exchange Offer to enable each Holder electing to
exchange Securities for New Securities (assuming that such Holder is not an
Affiliate of the Company, acquires the New Securities in the ordinary course of
such Holder's business, has no arrangements with any person to participate in
the distribution of the New Securities and is not prohibited by any law or
policy of the Commission from participating in the Registered Exchange Offer) to
trade such New Securities from and after their receipt without any limitations
or restrictions under the Act and

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without material restrictions under the securities laws of a substantial
proportion of the several states of the United States.

     (c) In connection with the Registered Exchange Offer, the Company shall:

          (i) mail to each Holder a copy of the Prospectus forming part of the
     Exchange Offer Registration Statement, together with an appropriate letter
     of transmittal and related documents;

          (ii) keep the Registered Exchange Offer open for not less than 30 days
     and not more than 45 Business Days after the date notice thereof is mailed
     to the Holders (or, in each case, longer if required by applicable law);

          (iii) use its best efforts to keep the Exchange Offer Registration
     Statement continuously effective, supplemented and amended as required,
     under the Act to ensure that it is available for sales of New Securities by
     Exchanging Dealers during the Exchange Offer Registration Period;

          (iv) utilize the services of a depositary for the Registered Exchange
     Offer with an address in the Borough of Manhattan in New York City, which
     may be the Trustee, the New Securities Trustee or an Affiliate of either of
     them;

          (v) permit Holders to withdraw tendered Securities at any time prior
     to the close of business, New York time, on the last Business Day on which
     the Registered Exchange Offer is open;

          (vi) prior to effectiveness of the Exchange Offer Registration
     Statement, if requested or required by the Commission, provide a
     supplemental letter to the Commission (A) stating that the Company is
     conducting the Registered Exchange Offer in reliance on the position of the
     Commission in Exxon Capital Holdings Corporation (pub. avail. May 13, 1988)
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     and Morgan Stanley and Co., Inc. (pub. avail. June 5, 1991); and (B)
         ----------------------------
     including a representation that the Company has not entered into any
     arrangement or understanding with any person to distribute the New
     Securities to be received in the Registered Exchange Offer and that, to the
     best of the Company's information and belief, each Holder participating in
     the Registered Exchange Offer is acquiring the New Securities in the
     ordinary course of business and has no arrangement or understanding with
     any person to participate in the distribution of the New Securities; and

          (vii) comply in all respects with all applicable laws.

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     (d) As soon as practicable after the close of the Registered Exchange
Offer, the Company shall:

          (i) accept for exchange all Securities tendered and not validly
     withdrawn pursuant to the Registered Exchange Offer;

          (ii) deliver to the Trustee for cancelation in accordance with Section
     5(s) all Securities so accepted for exchange; and

          (iii) cause the New Securities Trustee promptly to authenticate and
     deliver to each Holder of Securities a principal amount of New Securities
     equal to the principal amount of the Securities of such Holder so accepted
     for exchange.

     (e) Each Holder hereby acknowledges and agrees that any such Holder using
the Registered Exchange Offer to participate in a distribution of the New
Securities (x) could not under Commission policy as in effect on the date of
this Agreement rely on the position of the Commission in Morgan Stanley and Co.,
                                                         ----------------------
Inc. (pub. avail. June 5, 1991) and Exxon Capital Holdings Corporation (pub.
----                                ----------------------------------
avail. May 13, 1988), as interpreted in the Commission's letter to Shearman &
Sterling dated July 2, 1993 and similar no-action letters; and (y) must comply
with the registration and prospectus delivery requirements of the Act in
connection with any secondary resale transaction which must be covered by an
effective registration statement containing the selling security holder
information required by Item 507 or 508, as applicable, of Regulation S-K under
the Act if the resales are of New Securities obtained by such Holder in exchange
for Securities acquired by such Holder directly from the Company or one of its
Affiliates. Accordingly, each Holder participating in the Registered Exchange
Offer shall be required to represent to the Company that, at the time of the
consummation of the Registered Exchange Offer or prior to any notice the Company
is required to give the Commission under Section 2(c)(vi):

          (i) any New Securities received by such Holder will be acquired in the
     ordinary course of business;

          (ii) such Holder will have no arrangement or understanding with any
     person to participate in the distribution of the Securities or the New
     Securities within the meaning of the Act; and

          (iii) such Holder is not an Affiliate of the Company.

     (f) If any Initial Purchaser determines that it is not eligible to
participate in the Registered Exchange Offer with respect to the exchange of
Securities constituting any portion of an unsold allotment, at the request of
such Initial Purchaser, the Company shall issue and deliver

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to such Initial Purchaser or the person purchasing New Securities registered
under a Shelf Registration Statement as contemplated by Section 3 hereof from
such Initial Purchaser, in exchange for such Securities, a like principal amount
of New Securities. The Company shall use its best efforts to cause the CUSIP
Service Bureau to issue the same CUSIP number for such New Securities as for New
Securities issued pursuant to the Registered Exchange Offer.

     3. Shelf Registration. (a) If (i) due to any change in law or applicable
        ------------------
interpretations thereof by the Commission's staff, the Company determines upon
advice of its outside counsel that it is not permitted to effect the Registered
Exchange Offer as contemplated by Section 2 hereof; (ii) for any other reason
the Exchange Offer Registration Statement is not declared effective within 210
days of the date of original issuance of the Securities or the Registered
Exchange Offer is not consummated within 270 days of the date of original
issuance of the Securities; (iii) any Initial Purchaser so requests with respect
to Securities that are not eligible to be exchanged for New Securities in the
Registered Exchange Offer and that are held by it following consummation of the
Registered Exchange Offer; (iv) any Holder (other than an Initial Purchaser) is
not eligible to participate in the Registered Exchange Offer or does not receive
freely tradeable New Securities in the Registered Exchange Offer other than by
reason of such Holder being an Affiliate of the Company; or (v) in the case of
any Initial Purchaser that participates in the Registered Exchange Offer or
acquires New Securities pursuant to Section 2(f) hereof, such Initial Purchaser
does not receive freely tradeable New Securities in exchange for Securities
constituting any portion of an unsold allotment (it being understood that (x)
the requirement that an Initial Purchaser deliver a Prospectus containing the
information required by Item 507 or 508 of Regulation S-K under the Act in
connection with sales of New Securities acquired in exchange for such Securities
shall result in such New Securities being not "freely tradeable"; and (y) the
requirement that an Exchanging Dealer deliver an Exchange Offer Prospectus in
connection with sales of New Securities acquired in the Registered Exchange
Offer in exchange for Securities acquired as a result of market-making
activities or other trading activities shall not result in such New Securities
being not "freely tradeable"), the Company shall effect a Shelf Registration
Statement in accordance with subsection (b) below.

     (b) (i) The Company shall as promptly as practicable, file with the
Commission and thereafter shall cause to be declared effective under the Act a
Shelf Registration Statement relating to the offer and sale of the Securities or
the New Securities, as applicable, by the Holders thereof from time to time in
accordance with the methods of distribution elected by such Holders and set
forth in such Shelf Registration Statement; provided, however, that no Holder
                                            --------  -------
(other than an Initial Purchaser) shall be entitled to have the Securities held
by it covered by such Shelf Registration Statement unless such Holder agrees in
writing to be bound by all of the provisions of this Agreement applicable to
such Holder; and provided further, that with respect to New Securities received
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by an Initial Purchaser in exchange for Securities constituting any portion of
an unsold allotment, the Company may, if permitted by current interpretations by
the Commission's staff, file a post-effective amendment to the Exchange Offer
Registration

<PAGE>

Statement containing the information required by Item 507 or 508 of Regulation
S-K, as applicable, in satisfaction of its obligations under this subsection
with respect thereto, and any such Exchange Offer Registration Statement, as so
amended, shall be referred to herein as, and be governed by the provisions
herein applicable to, a Shelf Registration Statement.

     (ii) The Company shall use its reasonable best efforts to keep the Shelf
Registration Statement continuously effective, supplemented and amended as
required by the Act, in order to permit the Prospectus forming part thereof to
be usable by Holders for a period of two years from the date the Shelf
Registration Statement is declared effective by the Commission or such shorter
period that will terminate when all the Securities or New Securities, as
applicable, covered by the Shelf Registration Statement have been sold pursuant
to the Shelf Registration Statement (in any such case, such period being called
the "Shelf Registration Period").

     Notwithstanding the foregoing, during any 365-day period, the Company may
delay filing or suspend the effectiveness of any Registration Statement or
require Holders not to sell any New Securities or Securities pursuant to an
effective Registration Statement for up to 3 periods (each a "Suspension
Period") of up to 60 consecutive days (except for the consecutive 45-day period
immediately prior to maturity of the Securities) but not more than an aggregate
of 90 days during any 365-day period, if there is a possible acquisition or
business combination or other transaction, business development or event
involving the Company that may require disclosure in such Registration Statement
and the Company determines in the exercise of its reasonable judgment that such
disclosure is not in the best interests of the Company and its stockholders or
if obtaining any financial statements relating to an acquisition or business
combination required to be included in such Registration Statement would be
impracticable. In such a case, the Company shall promptly notify any such Holder
of the suspension of such Registration Statement's effectiveness or the
requirement that such Holder not sell any New Securities or Securities pursuant
to an effective Registration Statement; provided, that such notice shall not
                                        --------
require the Company to disclose the possible acquisition or business combination
or other transaction, business development or event if the Company determines in
good faith that such acquisition or business combination or other transaction,
business development or event should remain confidential. Upon the abandonment,
consummation or termination of the possible acquisition or business combination
or other transaction, business development or event or the availability of the
required financial statements with respect to a possible acquisition or business
combination, the suspension of the use of such Registration Statement pursuant
to this paragraph shall cease and the Company shall promptly comply with the
first paragraph of Section 5(b) hereof and notify such Holders that the use of
the prospectus contained in such Registration Statement, as amended or
supplemented, as applicable, may resume. The Company shall provide sufficient
copies of the latest version of such prospectus to such broker-dealers, promptly
upon written request, and in no event later than two Business Days after such
request, at any time during such period.

<PAGE>

     4. Additional Interest. (a) If (i) neither the Exchange Offer Registration
        -------------------
Statement nor the Shelf Registration Statement, as the case may be, is filed
with the Commission on or prior to the date which is 90 days following the date
of the original issuance of the Securities, (ii) the Exchange Offer Registration
Statement or the Shelf Registration Statement, as the case may be, is not
declared effective within 210 days after the original issuance of the
Securities, (iii) if the Exchange Offer Registration Statement is declared
effective, the Registered Exchange Offer is not consummated on or prior to 270
days after the date of the original issuance of Securities or (iv) the
applicable Registration Statement is filed and declared effective but shall
thereafter cease to be effective (at any time that the Company is obligated to
maintain the effectiveness thereof) without being again effective within 30 days
or being succeeded within 30 days by an additional Registration Statement filed
and declared effective (each such event referred to in clauses (i) through (iv),
a "Registration Default"), the Company shall be obligated to pay additional
interest ("Additional Interest") to each Holder of Securities, during the period
of one or more such Registration Defaults, at a rate of 0.25% per annum on the
applicable principal amount of Securities held by such Holder until all
Registration Defaults have been cured. Such obligation to pay Additional
Interest shall survive until (i) the applicable Registration Statement is filed,
(ii) the Exchange Offer Registration Statement is declared effective or the
Registered Exchange Offer is consummated with respect to all properly tendered
Securities, (iii) the Shelf Registration Statement is declared effective or (iv)
the applicable Registration Statement again becomes effective (or is superseded
by another effective Registration Statement), as the case may be. At any time
that all Registration Defaults have been cured, the accrual of Additional
Interest will cease.

     (b) The Company shall notify the Trustee and the paying agent under the
Indenture immediately upon the happening of each and every Registration Default.
The Company shall pay the Additional Interest due on the Securities by
depositing with the paying agent (which may not be the Company for these
purposes), in trust, for the benefit of the Holders thereof, prior to 10:00
a.m., New York City time, on the next applicable interest payment date specified
by the Indenture and the Securities, sums sufficient to pay the Additional
Interest then due. The Additional Interest due shall be payable on each
applicable interest payment date specified by the Indenture and the Securities
to the record holder entitled to receive the interest payment to be made on such
date. Each obligation to pay Additional Interest shall be deemed to accrue from
and including the date of the applicable Registration Default.

     (c) The parties hereto agree that the Additional Interest provided for in
this Section 4 constitutes a reasonable estimate of and is intended to
constitute the sole damages that will be suffered by Holders of Securities by
reason of a Registration Default.

<PAGE>

     5. Additional Registration Procedures. In connection with any Shelf
        ----------------------------------
Registration Statement and, to the extent applicable, any Exchange Offer
Registration Statement, the following provisions shall apply.

     (a) The Company shall:

          (i) furnish to your single counsel, not less than five Business Days
     prior to the filing thereof with the Commission, a copy of any Exchange
     Offer Registration Statement and any Shelf Registration Statement, and each
     amendment thereof and each amendment or supplement, if any, to the
     Prospectus included therein (but not including any documents incorporated
     by reference therein after the initial filing) and shall use its best
     efforts to reflect in each such document, when so filed with the
     Commission, such comments as such counsel reasonably proposes;

          (ii) include information substantially consistent with that set forth
     in Annex A hereto on the facing page of the Exchange Offer Registration
     Statement, in Annex B hereto in the forepart of the Exchange Offer
     Registration Statement in a section setting forth details of the Exchange
     Offer, in Annex C hereto in the underwriting or plan of distribution
     section of the Prospectus contained in the Exchange Offer Registration
     Statement, and in Annex D hereto in the letter of transmittal delivered
     pursuant to the Registered Exchange Offer; and

          (iii) if requested by an Initial Purchaser, include the information
     required by Item 507 or 508 of Regulation S-K, as applicable, in the
     Prospectus contained in the Exchange Offer Registration Statement.

     (b) The Company shall ensure that:

          (i) any Registration Statement and any amendment thereto and any
     Prospectus forming part thereof and any amendment or supplement thereto
     complies in all material respects with the Act and the rules and
     regulations thereunder;

          (ii) any Registration Statement and any amendment thereto does not,
     when it becomes effective, contain an untrue statement of a material fact
     or omit to state a material fact required to be stated therein or necessary
     to make the statements therein not misleading; and

          (iii) any Prospectus forming part of any Registration Statement, and
     any amendment or supplement to such Prospectus, does not include an untrue
     statement of a material fact or omit to state a material fact necessary in
     order to make the statements therein, in the light of the circumstances
     under which they were made, not misleading.

<PAGE>

     (c) The Company shall advise each Holder (which notice, if pursuant to
clauses (ii) through (v) hereof, shall be accompanied by an instruction (and
each such Holder shall abide by such instruction) to suspend the use of the
Prospectus until the Company shall have remedied the basis for such suspension):

          (i) when a Registration Statement and any amendment thereto has been
     filed with the Commission and when the Registration Statement or any
     post-effective amendment thereto has become effective;

          (ii) of any request by the Commission for any amendment or supplement
     to the Registration Statement or the Prospectus or for additional
     information;

          (iii) of the issuance by the Commission of any stop order suspending
     the effectiveness of the Registration Statement or the initiation of any
     proceedings for that purpose;

          (iv) of the receipt by the Company of any notification with respect to
     the suspension of the qualification of the securities included therein for
     sale in any jurisdiction or the initiation of any proceeding for such
     purpose; and

          (v) of the happening of any event (with no requirement to describe the
     happening) that requires any change in the Registration Statement or the
     Prospectus so that, as of such date, the statements therein are not
     misleading and do not omit to state a material fact required to be stated
     therein or necessary to make the statements therein (in the case of the
     Prospectus, in the light of the circumstances under which they were made)
     not misleading.

     (d) The Company shall use its reasonable best efforts to obtain the
withdrawal of any order suspending the effectiveness of any Registration
Statement or the qualification of the securities therein for sale in any
jurisdiction at the earliest possible time.

     (e) The Company shall furnish to each Holder of Securities covered by any
Shelf Registration Statement, without charge, at least one copy of such Shelf
Registration Statement and any post-effective amendment thereto, including all
material incorporated therein by reference, and, if the Holder so requests in
writing, all exhibits thereto (not including exhibits incorporated by reference
therein unless specifically requested).

     (f) The Company shall, during the Shelf Registration Period, deliver to
each Holder of Securities covered by any Shelf Registration Statement, without
charge, as many copies of the Prospectus (including each preliminary Prospectus)
included in such Shelf

<PAGE>

Registration Statement and any amendment or supplement thereto as such Holder
may reasonably request. The Company consents to the use of the Prospectus or any
amendment or supplement thereto by each of the selling Holders of Securities in
connection with the offering and sale of the Securities covered by the
Prospectus, or any amendment or supplement thereto, included in the Shelf
Registration Statement.

     (g) The Company shall furnish to each Exchanging Dealer which so requests,
without charge, at least one copy of the Exchange Offer Registration Statement
and any post-effective amendment thereto, including all material incorporated by
reference therein, and, if the Exchanging Dealer so requests in writing, all
exhibits thereto (not including exhibits incorporated by reference therein
unless specifically requested).

     (h) The Company shall promptly deliver to each Initial Purchaser, each
Exchanging Dealer and each other person required to deliver a Prospectus during
the Exchange Offer Registration Period, without charge, as many copies of the
Prospectus included in such Exchange Offer Registration Statement and any
amendment or supplement thereto as any such person may reasonably request. The
Company consents to the use of the Prospectus or any amendment or supplement
thereto by any Initial Purchaser, any Exchanging Dealer and any such other
person that may be required to deliver a Prospectus following the Registered
Exchange Offer in connection with the offering and sale of the New Securities
covered by the Prospectus, or any amendment or supplement thereto, included in
the Exchange Offer Registration Statement.

     (i) Prior to the Registered Exchange Offer or any other offering of
Securities pursuant to any Registration Statement, the Company shall arrange, if
necessary, for the qualification of the Securities or the New Securities for
sale under the laws of such jurisdictions as any Holder shall reasonably request
and will maintain such qualification in effect so long as required; provided
                                                                    --------
that in no event shall the Company be obligated to qualify to do business in any
jurisdiction where it is not then so qualified or to take any action that would
subject it to service of process in suits, other than those arising out of the
Initial Placement, the Registered Exchange Offer or any offering pursuant to a
Shelf Registration Statement, in any such jurisdiction where it is not then so
subject.

     (j) The Company shall cooperate with the Holders of Securities to
facilitate the timely preparation and delivery of certificates representing New
Securities or Securities to be issued or sold pursuant to any Registration
Statement free of any restrictive legends and in such denominations and
registered in such names as Holders may request.

     (k) Upon the occurrence of any event contemplated by subsections (c)(ii)
through (v) above, the Company shall promptly prepare a post-effective amendment
to the applicable Registration Statement or an amendment or supplement to the
related Prospectus or file any other

<PAGE>

required document so that, as thereafter delivered to Initial Purchasers of the
securities included therein, the Prospectus will not include an untrue statement
of a material fact or omit to state any material fact necessary to make the
statements therein, in the light of the circumstances under which they were
made, not misleading. In such circumstances, the period of effectiveness of the
Exchange Offer Registration Statement provided for in Section 2 or the Shelf
Registration Statement provided for in Section 3(b), as applicable, shall be
extended by the number of days from and including the date of the giving of a
notice of suspension pursuant to Section 5(c) to and including the date when the
Initial Purchasers, the Holders of the Securities and any known Exchanging
Dealer shall have received such amended or supplemented Prospectus pursuant to
this Section.

     (l) Not later than the effective date of any Registration Statement, the
Company shall provide a CUSIP number for the Securities or the New Securities,
as the case may be, registered under such Registration Statement and provide the
Trustee with certificates for such Securities or New Securities, in a form
eligible for deposit with The Depository Trust Company.

     (m) The Company shall make generally available to its security holders as
soon as practicable after the effective date of the applicable Registration
Statement an earnings statement satisfying the provisions of Section 11(a) of
the Act.

     (n) The Company shall cause the Indenture or the New Securities Indenture,
as the case may be, to be qualified under the Trust Indenture Act in a timely
manner.

     (o) The Company may require each Holder of Securities to be sold pursuant
to any Shelf Registration Statement to furnish to the Company, and each such
Holder will furnish to the Company, such information regarding the Holder and
the distribution of such Securities as the Company may from time to time
reasonably require for inclusion in such Registration Statement. The Company may
exclude from such Shelf Registration Statement the Securities of any Holder that
unreasonably fails to furnish such information within a reasonable time after
receiving such request.

     (p) In the case of any Shelf Registration Statement, the Company shall
enter into such agreements (including if requested an underwriting agreement in
customary form) and take all other appropriate actions in order to expedite or
facilitate the registration or the disposition of the Securities, and in
connection therewith, if an underwriting agreement is entered into, cause the
same to contain indemnification provisions and procedures no less favorable than
those set forth in Section 7 (or such other provisions and procedures acceptable
to the Majority Holders and the Managing Underwriters, if any) with respect to
all parties to be indemnified pursuant to Section 7.

     (q) In the case of any Shelf Registration Statement, the Company shall:

<PAGE>

          (i) make reasonably available for inspection by the Holders of
     Securities to be registered thereunder, any underwriter participating in
     any disposition pursuant to such Registration Statement, and any attorney,
     accountant or other agent retained by the Holders or any such underwriter
     all relevant financial and other records, pertinent corporate documents and
     properties of the Company and its subsidiaries;

          (ii) cause the Company's officers, directors and employees to supply
     all relevant information reasonably requested by the Holders or any such
     underwriter, attorney, accountant or agent in connection with any such
     Registration Statement as is customary for similar due diligence
     examinations; provided, however, that any information that is designated in
                   --------  -------
     writing by the Company, in good faith, as confidential at the time of
     delivery of such information shall be kept confidential by the Holders or
     any such underwriter, attorney, accountant or agent, unless such disclosure
     is made in connection with a court proceeding or required by law (but
     before any such disclosure the Company will be notified in time to object
     to such disclosure), or such information becomes available to the public
     generally or through a third party without an accompanying obligation of
     confidentiality;

          (iii) make such representations and warranties to the Holders of
     Securities registered thereunder and the underwriters, if any, in form,
     substance and scope as are customarily made by the Company to underwriters
     in primary underwritten offerings of debt securities, which may include
     those set forth in Section 1 of the Purchase Agreement;

          (iv) obtain opinions of counsel to the Company and updates thereof
     (which counsel and opinions (in form, scope and substance) shall be
     reasonably satisfactory to the Managing Underwriters, if any) addressed to
     each selling Holder and the underwriters, if any, covering such matters as
     are customarily covered in opinions requested in underwritten offerings of
     debt securities and such other matters as may be reasonably requested by
     such Holders and underwriters;

          (v) obtain "cold comfort" letters and updates thereof from the
     independent certified public accountants of the Company (and, if necessary,
     any other independent certified public accountants of any subsidiary of the
     Company or of any business acquired by the Company for which financial
     statements and financial data are, or are required to be, included in the
     Registration Statement), addressed to each selling Holder of Securities
     registered thereunder and the underwriters, if any, in customary form and
     covering matters of the type customarily covered in "cold comfort" letters
     in connection with primary underwritten offerings, assuming any letter
     reasonably requested by such accountants is delivered by the Holders; and

<PAGE>

          (vi) deliver such documents and certificates as may be reasonably
     requested by the Majority Holders and the Managing Underwriters, if any,
     including those to evidence compliance with Section 5(k) and with any
     customary conditions contained in the underwriting agreement or other
     agreement entered into by the Company.

The actions set forth in clauses (iii), (iv), (v) and (vi) of this subsection
shall be performed at (A) the effectiveness of such Registration Statement and
the declaration of effectiveness by the Commission of each post-effective
amendment thereto; and (B) each closing under any underwriting or similar
agreement as and to the extent required thereunder.

     (r) In the case of any Exchange Offer Registration Statement, the Company
shall:

          (i) make reasonably available for inspection by such Initial
     Purchaser, and any attorney, accountant or other agent retained by such
     Initial Purchaser, all relevant financial and other records, pertinent
     corporate documents and properties of the Company and its subsidiaries;

          (ii) cause the Company's officers, directors and employees to supply
     all relevant information reasonably requested by such Initial Purchaser or
     any such attorney, accountant or agent in connection with any such
     Registration Statement as is customary for similar due diligence
     examinations; provided, however, that any information that is designated in
                   --------  -------
     writing by the Company, in good faith, as confidential at the time of
     delivery of such information shall be kept confidential by such Initial
     Purchaser or any such attorney, accountant or agent, unless such disclosure
     is made in connection with a court proceeding or required by law (but
     before any such disclosure the Company will be notified in time to object
     to such disclosure), or such information becomes available to the public
     generally or through a third party without an accompanying obligation of
     confidentiality;

          (iii) make such representations and warranties to such Initial
     Purchaser, in form, substance and scope as are customarily made by the
     Company to underwriters in primary underwritten offerings of debt
     securities, which may include those set forth in Section 1 of the Purchase
     Agreement;

          (iv) obtain opinions of counsel to the Company and updates thereof
     (which counsel and opinions (in form, scope and substance) shall be
     reasonably satisfactory to such Initial Purchaser and its counsel,
     addressed to such Initial Purchaser, covering such matters as are
     customarily covered in opinions requested in underwritten offerings of debt
     securities and such other matters as may be reasonably requested by such
     Initial Purchaser or its counsel;

<PAGE>

          (v) obtain "cold comfort" letters and updates thereof from the
     independent certified public accountants of the Company (and, if necessary,
     any other independent certified public accountants of any subsidiary of the
     Company or of any business acquired by the Company for which financial
     statements and financial data are, or are required to be, included in the
     Registration Statement), addressed to such Initial Purchaser, in customary
     form and covering matters of the type customarily covered in "cold comfort"
     letters in connection with primary underwritten offerings, or if requested
     by such Initial Purchaser or its counsel in lieu of a "cold comfort"
     letter, an agreed-upon procedures letter under Statement on Standards for
     Attestation Engagements No. 10, covering matters requested by such Initial
     Purchaser or its counsel, assuming any letter reasonably requested by such
     accountants is delivered by the Holders; and

          (vi) deliver such documents and certificates as may be reasonably
     requested by such Initial Purchaser or its counsel, including those to
     evidence compliance with Section 5(k) and with conditions customarily
     contained in underwriting agreements. The foregoing actions set forth in
     clauses (iii), (iv), (v), and (vi) of this subsection shall be performed at
     the close of the Registered Exchange Offer and the declaration of
     effectiveness by the Commission of any post-effective amendment to the
     Exchange Offer Registration Statement.

     (s) If a Registered Exchange Offer is to be consummated, upon delivery of
the Securities by Holders to the Company (or to such other person as directed by
the Company) in exchange for the New Securities, the Company shall mark, or
cause to be marked, on the Securities so exchanged that such Securities are
being canceled in exchange for the New Securities. In no event shall the
Securities be marked as paid or otherwise satisfied.

     (t) In the event that any Broker-Dealer shall underwrite any Securities or
participate as a member of an underwriting syndicate or selling group or "assist
in the distribution" (within the meaning of the Rules of Fair Practice and the
By-Laws of the National Association of Securities Dealers, Inc.) thereof,
whether as a Holder of such Securities or as an underwriter, a placement or
sales agent or a broker or dealer in respect thereof, or otherwise, assist such
Broker-Dealer in complying with the requirements of such Rules and By-Laws,
including, without limitation, by:

          (i) if such Rules or By-Laws shall so require, engaging a "qualified
     independent underwriter" (as defined in such Rules) to participate in the
     preparation of the Registration Statement, to exercise usual standards of
     due diligence with respect thereto and, if any portion of the offering
     contemplated by such Registration Statement is an underwritten offering or
     is made through a placement or sales agent, to recommend the yield of such
     Securities;

<PAGE>

          (ii) indemnifying any such qualified independent underwriter to the
     extent of the indemnification of underwriters provided in Section 7 hereof;
     and

          (iii) providing such information to such Broker-Dealer as may be
     required in order for such Broker-Dealer to comply with the requirements of
     such Rules.

     (u) The Company shall use its reasonable best efforts to take all other
steps necessary to effect the registration of the Securities or the New
Securities, as the case may be, covered by a Registration Statement.

     6. Registration Expenses. The Company shall bear all expenses incurred in
        ---------------------
connection with the performance of its obligations under Sections 2, 3, 4 and 5
hereof and, in the event of any Shelf Registration Statement, will reimburse the
Holders for the reasonable fees and disbursements of one firm or counsel
designated by the Majority Holders to act as counsel for the Holders in
connection therewith, such counsel to be reasonably acceptable to the Company.

     7. Indemnification and Contribution. (a) The Company agrees to indemnify
        --------------------------------
and hold harmless each Holder of Securities or New Securities, as the case may
be, covered by any Registration Statement (including each Initial Purchaser and,
with respect to any Prospectus delivery as contemplated in Section 5(h) hereof,
each Exchanging Dealer) and each person who controls any such Holder within the
meaning of either the Act or the Exchange Act against any and all losses,
claims, damages or liabilities, joint or several, to which they or any of them
may become subject under the Act, the Exchange Act or other Federal or state
statutory law or regulation, at common law or otherwise, insofar as such losses,
claims, damages or liabilities (or actions in respect thereof) are caused by any
untrue statement or alleged untrue statement of a material fact contained in the
Registration Statement as declared effective or in any amendment thereof, or in
any preliminary Prospectus or the Prospectus, or in any amendment thereof or
supplement thereto, or arise out of or are based upon the omission or alleged
omission to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, and agrees to reimburse
each such indemnified party, as incurred, for any legal or other expenses
reasonably incurred by them in connection with investigating or defending any
such loss, claim, damage, liability or action; provided, however, that the
                                               --------  -------
Company will not be liable in any case to the extent that any such loss, claim,
damage or liability arises out of or is based upon any such untrue statement or
alleged untrue statement or omission or alleged omission made therein in
reliance upon and in conformity with written information furnished to the
Company by or on behalf of any such Holder specifically for inclusion therein.
This indemnity agreement will be in addition to any liability which the Company
may otherwise have.

     The Company also agrees to indemnify or contribute as provided in Section
7(d) to Losses of each underwriter of Securities or New Securities, as the case
may be, registered

<PAGE>

under a Shelf Registration Statement, and each person who controls such
underwriter on substantially the same basis as that of the indemnification of
the Initial Purchasers and the selling Holders provided in this Section 7(a)
(including exceptions and provisos) and shall, if requested by any Holder, enter
into an underwriting agreement reflecting such agreement, as provided in Section
5(p) hereof.

     (b) Each Holder of securities covered by a Registration Statement
(including each Initial Purchaser and, with respect to any Prospectus delivery
as contemplated in Section 5(h) hereof, each Exchanging Dealer) severally and
not jointly agrees to indemnify and hold harmless the Company, each of its
directors, each of its officers who signs such Registration Statement and each
person who controls the Company within the meaning of either the Act or the
Exchange Act, to the same extent as the foregoing indemnity from the Company to
each such Holder, but only with reference to written information relating to
such Holder furnished to the Company by or on behalf of such Holder specifically
for inclusion in the documents referred to in the foregoing indemnity. This
indemnity agreement will be in addition to any liability which any such Holder
may otherwise have.

     (c) Promptly after receipt by an indemnified party under this Section of
notice of the commencement of any action, such indemnified party will, if a
claim in respect thereof is to be made against the indemnifying party under this
Section, notify the indemnifying party in writing of the commencement thereof;
but the failure so to notify the indemnifying party (i) will not relieve it from
liability under paragraph (a) or (b) above unless and to the extent it did not
otherwise learn of such action and such failure results in the forfeiture by the
indemnifying party of substantial rights and defenses; and (ii) will not, in any
event, relieve the indemnifying party from any obligations to any indemnified
party other than the indemnification obligation provided in paragraph (a) or (b)
above. The indemnifying party shall be entitled to appoint counsel of the
indemnifying party's choice at the indemnifying party's expense to represent the
indemnified party in any action for which indemnification is sought (in which
case the indemnifying party shall not thereafter be responsible for the fees and
expenses of any separate counsel retained by the indemnified party or parties
except as set forth below); provided, however, that such counsel shall be
                            --------  -------
satisfactory to the indemnified party. Notwithstanding the indemnifying party's
election to appoint counsel to represent the indemnified party in an action, the
indemnified party shall have the right to employ separate counsel (including
local counsel), and the indemnifying party shall bear the reasonable fees, costs
and expenses of such separate counsel if (i) the use of counsel chosen by the
indemnifying party to represent the indemnified party would present such counsel
with a conflict of interest; (ii) the actual or potential defendants in, or
targets of, any such action include both the indemnified party and the
indemnifying party and the indemnified party shall have reasonably concluded
that there may be legal defenses available to it and/or other indemnified
parties which are different from or additional to those available to the
indemnifying party; (iii) the indemnifying party shall not have employed counsel
satisfactory to the indemnified party to represent the indemnified party within
a reasonable time after notice of

<PAGE>

the institution of such action; or (iv) the indemnifying party shall authorize
the indemnified party to employ separate counsel at the expense of the
indemnifying party. An indemnifying party will not, without the prior written
consent of the indemnified parties, settle or compromise or consent to the entry
of any judgment with respect to any pending or threatened claim, action, suit or
proceeding in respect of which indemnification or contribution may be sought
hereunder (whether or not the indemnified parties are actual or potential
parties to such claim or action) unless such settlement, compromise or consent
includes an unconditional release of each indemnified party from all liability
arising out of such claim, action, suit or proceeding.

     (d) In the event that the indemnity provided in paragraph (a) or (b) of
this Section is unavailable to or insufficient to hold harmless an indemnified
party for any reason, then each applicable indemnifying party shall have a joint
and several obligation to contribute to the aggregate losses, claims, damages
and liabilities (including legal or other expenses reasonably incurred in
connection with investigating or defending same) (collectively "Losses") to
which such indemnified party may be subject in such proportion as is appropriate
to reflect the relative benefits received by such indemnifying party, on the one
hand, and such indemnified party, on the other hand, from the Initial Placement
and the Registration Statement which resulted in such Losses; provided, however,
                                                              --------  -------
that in no case shall any Initial Purchaser or any subsequent Holder of any
Security or New Security be required to contribute any amount in excess of the
amount by which (A) with respect to any subsequent Holder, the total price at
which the Securities or New Securities sold by such indemnifying party to any
purchaser, (B) with respect to any Initial Purchaser, the total consideration
received by such Initial Purchaser pursuant to the Purchase Agreement, as the
case may be, exceeds the amount of any damages which such indemnifying party has
otherwise paid or become liable to pay by reason of any untrue or alleged untrue
statement or omission or alleged omission. If the allocation provided by the
immediately preceding sentence is unavailable for any reason, the indemnifying
party and the indemnified party shall contribute in such proportion as is
appropriate to reflect not only such relative benefits but also the relative
fault of such indemnifying party, on the one hand, and such indemnified party,
on the other hand, in connection with the statements or omissions which resulted
in such Losses as well as any other relevant equitable considerations. Benefits
received by the Company shall be deemed to be equal to the total net proceeds
from the Initial Placement (before deducting expenses) as set forth on the cover
page of the Offering Memorandum. Benefits received by the Initial Purchasers
shall be deemed to be equal to the total purchase discounts and commissions as
set forth on the cover page of the Offering Memorandum, and benefits received by
any other Holders shall be deemed to be equal to the value of receiving
Securities or New Securities, as applicable, registered under the Act. Benefits
received by any underwriter shall be deemed to be equal to the total
underwriting discounts and commissions, as set forth on the cover page of the
Prospectus forming a part of the Registration Statement which resulted in such
Losses. Relative fault shall be determined by reference to, among other things,
whether any alleged untrue statement or omission relates to information provided
by the indemnifying party, on the one hand, or by the indemnified party, on the
other hand, the intent of

<PAGE>

the parties and their relative knowledge, access to information and opportunity
to correct or prevent such untrue statement or omission. The parties agree that
it would not be just and equitable if contribution were determined by pro rata
allocation (even if the Holders were treated as one entity for such purpose) or
any other method of allocation which does not take account of the equitable
considerations referred to above. Notwithstanding the provisions of this
paragraph (d), no person guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the Act) shall be entitled to contribution from any
person who was not guilty of such fraudulent misrepresentation. For purposes of
this Section, each person who controls a Holder within the meaning of either the
Act or the Exchange Act and each director, officer, employee and agent of such
Holder shall have the same rights to contribution as such Holder, and each
person who controls the Company within the meaning of either the Act or the
Exchange Act, each officer of the Company who shall have signed the Registration
Statement and each director of the Company shall have the same rights to
contribution as the Company, subject in each case to the applicable terms and
conditions of this paragraph (d).

     (e) The provisions of this Section will remain in full force and effect,
regardless of any investigation made by or on behalf of any Holder or the
Company or any of the directors, officers, employees, agents or controlling
persons referred to in this Section hereof, and will survive the sale by a
Holder of securities covered by a Registration Statement.

     8. Underwritten Registrations. (a) If any of the Securities or New
        --------------------------
Securities, as the case may be, covered by any Shelf Registration Statement are
to be sold in an underwritten offering, the Managing Underwriters shall be
selected by the Majority Holders with the consent of the Company, such consent
not to be unreasonably withheld.

     (b) No person may participate in any underwritten offering pursuant to any
Shelf Registration Statement, unless such person (i) agrees to sell such
person's Securities or New Securities, as the case may be, on the basis
reasonably provided in any underwriting arrangements approved by the persons
entitled hereunder to approve such arrangements; and (ii) completes and executes
all questionnaires, powers of attorney, indemnities, underwriting agreements and
other documents reasonably required under the terms of such underwriting
arrangements.

     9. No Inconsistent Agreements. The Company has not, as of the date hereof,
        --------------------------
entered into, nor shall it, on or after the date hereof, enter into, any
agreement with respect to its securities that is inconsistent with the rights
granted to the Holders herein or otherwise conflicts with the provisions hereof.

     10. Amendments and Waivers. The provisions of this Agreement, including the
         ----------------------
provisions of this sentence, may not be amended, qualified, modified or
supplemented, and waivers or consents to departures from the provisions hereof
may not be given, unless the

<PAGE>

Company has obtained the written consent of the Holders of at least a majority
of the then outstanding aggregate principal amount of Securities (or, after the
consummation of any Registered Exchange Offer in accordance with Section 2
hereof, of New Securities); provided that, with respect to any matter that
directly or indirectly affects the rights of any Initial Purchaser hereunder,
the Company shall obtain the written consent of each such Initial Purchaser
against which such amendment, qualification, supplement, waiver or consent is to
be effective. Notwithstanding the foregoing (except the foregoing proviso), a
waiver or consent to departure from the provisions hereof with respect to a
matter that relates exclusively to the rights of Holders whose Securities or New
Securities, as the case may be, are being sold pursuant to a Registration
Statement and that does not directly or indirectly affect the rights of other
Holders may be given by the Majority Holders, determined on the basis of
Securities or New Securities, as the case may be, being sold rather than
registered under such Registration Statement.

     11. Notices. All notices and other communications provided for or permitted
         -------
hereunder shall be made in writing by hand-delivery, first-class mail, telex,
telecopier or air courier guaranteeing overnight delivery:

     (a) if to a Holder, at the most current address given by such Holder to the
Company in accordance with the provisions of this Section, which address
initially is, with respect to each Holder, the address of such Holder maintained
by the Registrar under the Indenture.

     (b) if to you, initially at the respective addresses set forth in the
Purchase Agreement; and

     (c) if to the Company, initially at its address set forth in the Purchase
Agreement.

     All such notices and communications shall be deemed to have been duly given
when received.

     The Initial Purchasers or the Company by notice to the other parties may
designate additional or different addresses for subsequent notices or
communications.

     12. Successors. This Agreement shall inure to the benefit of and be binding
         ----------
upon the successors and assigns of each of the parties, including, without the
need for an express assignment or any consent by the Company thereto, subsequent
Holders of Securities and the New Securities. The Company hereby agrees to
extend the benefits of this Agreement to any Holder of Securities and the New
Securities, and any such Holder may specifically enforce the provisions of this
Agreement as if an original party hereto.

     13. Counterparts. This Agreement may be in signed counterparts, each of
         ------------
which shall be an original and all of which together shall constitute one and
the same agreement.

<PAGE>

     14. Headings. The headings used herein are for convenience only and shall
         --------
not affect the construction hereof.

     15. Applicable Law. This Agreement shall be governed by and construed in
         --------------
accordance with the laws of the State of New York applicable to contracts made
and to be performed in the State of New York.

     16. Severability. In the event that any one of more of the provisions
         ------------
contained herein, or the application thereof in any circumstances, is held
invalid, illegal or unenforceable in any respect for any reason, the validity,
legality and enforceability of any such provision in every other respect and of
the remaining provisions hereof shall not be in any way impaired or affected
thereby, it being intended that all of the rights and privileges of the parties
shall be enforceable to the fullest extent permitted by law.

     17. Securities Held by the Company, etc. Whenever the consent or approval
         -----------------------------------
of Holders of a specified percentage of principal amount of Securities or New
Securities is required hereunder, Securities or New Securities, as applicable,
held by the Company or its Affiliates shall be disregarded and deemed not to be
outstanding in determining whether such consent or approval was given by the
Holders of such required percentage.

<PAGE>

     If the foregoing is in accordance with your understanding of our agreement,
please sign and return to us the enclosed duplicate hereof, whereupon this
letter and your acceptance shall represent a binding agreement among the Company
and the several Initial Purchasers.

                                       Very truly yours,

                                       Sprint Corporation

                                       by
                                          --------------------------
                                          Name:
                                          Title:

                                       Sprint Capital Corporation

                                       by
                                          --------------------------
                                          Name:
                                          Title:

<PAGE>

The foregoing Agreement is hereby confirmed and accepted as of the date first
above written.

Bank of America Securities LLC
Lehman Brothers Inc.

By: Banc of America Securities LLC

by
   -----------------------
   Name:
   Title:

By: Lehman Brothers Inc.

by
   -----------------------
   Name:
   Title:

For themselves and the other several Initial Purchasers named in Schedule I to
the Purchase Agreement.

<PAGE>

ANNEX A

Each Broker-Dealer that receives New Securities for its own account pursuant to
the Exchange Offer must acknowledge that it will deliver a prospectus in
connection with any resale of such New Securities. The Letter of Transmittal
states that by so acknowledging and by delivering a prospectus, a Broker-Dealer
will not be deemed to admit that it is an "underwriter" within the meaning of
the Securities Act. This Prospectus, as it may be amended or supplemented from
time to time, may be used by a Broker-Dealer in connection with resales of New
Securities received in exchange for Securities where such Securities were
acquired by such Broker-Dealer as a result of market-making activities or other
trading activities. The Company has agreed that, starting on the Expiration Date
(as defined herein) and ending on the close of business one year after the
Expiration Date, it will make this Prospectus available to any Broker-Dealer for
use in connection with any such resale. See "Plan of Distribution".

<PAGE>

ANNEX B

Each Broker-Dealer that receives New Securities for its own account in exchange
for Securities, where such Securities were acquired by such Broker-Dealer as a
result of market-making activities or other trading activities, must acknowledge
that it will deliver a prospectus in connection with any resale of such New
Securities. See "Plan of Distribution".

<PAGE>

ANNEX C

                              PLAN OF DISTRIBUTION

     Each Broker-Dealer that receives New Securities for its own account
pursuant to the Exchange Offer must acknowledge that it will deliver a
prospectus in connection with any resale of such New Securities. This
Prospectus, as it may be amended or supplemented from time to time, may be used
by a Broker-Dealer in connection with resales of New Securities received in
exchange for Securities where such Securities were acquired as a result of
market-making activities or other trading activities. The Company has agreed
that, during the Exchange Offer Registration Period, it will make this
Prospectus, as amended or supplemented, available to any Broker-Dealer for use
in connection with any such resale. In addition, during the Exchange Offer
Registration Period, all dealers effecting transactions in the New Securities
may be required to deliver a prospectus.

     The Company will not receive any proceeds from any sale of New Securities
by brokers-dealers. New Securities received by Broker-Dealers for their own
account pursuant to the Exchange Offer may be sold from time to time in one or
more transactions in the over-the-counter market, in negotiated transactions,
through the writing of options on the New Securities or a combination of such
methods of resale, at market prices prevailing at the time of resale, at prices
related to such prevailing market prices or negotiated prices. Any such resale
may be made directly to purchasers or to or through brokers or dealers who may
receive compensation in the form of commissions or concessions from any such
Broker-Dealer and/or the purchasers of any such New Securities. Any
Broker-Dealer that resells New Securities that were received by it for its own
account pursuant to the Exchange Offer and any broker or dealer that
participates in a distribution of such New Securities may be deemed to be an
"underwriter" within the meaning of the Securities Act and any profit resulting
from any such resale of New Securities and any commissions or concessions
received by any such persons may be deemed to be underwriting compensation under
the Securities Act. The Letter of Transmittal states that by acknowledging that
it will deliver and by delivering a prospectus, a Broker-Dealer will not be
deemed to admit that it is an "underwriter" within the meaning of the Securities
Act.

     During the Exchange Offer Registration Period, the Company will promptly
send additional copies of this Prospectus and any amendment or supplement to
this Prospectus to any Broker-Dealer that requests such documents in the Letter
of Transmittal. The Company has agreed to pay all expenses incident to the
Exchange Offer (including the expenses of one counsel for the Holders of the
Securities) other than commissions or concessions of any brokers or dealers and
will indemnify the holders of the Securities (including any Broker-Dealers)
against certain liabilities, including liabilities under the Securities Act.

     [If applicable, add information required by Regulation S-K Items 507 and/or
508. S-K 502(b) legend must appear on the back cover.]

<PAGE>

ANNEX D

Rider A
-------

      / /  CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE
           10 ADDITIONAL COPIES OF THE PROSPECTUS AND 10 COPIES OF
           ANY AMENDMENTS OR SUPPLEMENTS THERETO.
           Name:
                        -----------------------
           Address:
                        -----------------------

                        -----------------------

Rider B
-------

If the undersigned is not a Broker-Dealer, the undersigned represents that it
acquired the New Securities in the ordinary course of its business, it is not
engaged in, and does not intend to engage in, a distribution of New Securities
and it has no arrangements or understandings with any person to participate in a
distribution of the New Securities. If the undersigned is a Broker-Dealer that
will receive New Securities for its own account in exchange for Securities, it
represents that the Securities to be exchanged for New Securities were acquired
by it as a result of market-making activities or other trading activities and
acknowledges that it will deliver a prospectus in connection with any resale of
such New Securities; however, by so acknowledging and by delivering a
prospectus, the undersigned will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act.<PAGE>

                                                                    EXHIBIT 10.1

Note: Redacted portions have been marked with (***). The redacted portions are
subject to a request for confidential treatment that will be promptly filed with
the Securities and Exchange Commission.

                              AMENDED AND RESTATED

                              PROCUREMENT AGREEMENT

                                     BETWEEN

                        QWEST COMMUNICATIONS CORPORATION

                                       AND

                                  TELLIUM, INC.

                                     -1-

<PAGE>

                                TABLE OF CONTENTS
<TABLE>
<CAPTION>
<S> <C>                                                                    <C>
1.  DEFINITIONS ...............................................................4

2.  SCOPE .....................................................................9

3.  SUPPLIER OBLIGATIONS .....................................................11

4.  QWEST OBLIGATIONS ........................................................12

5.  GOVERNANCE ...............................................................12

6.  PRICING ..................................................................13

7.  ORDERING .................................................................13

8.  DELIVERY AND SHIPMENT ....................................................14

9.  PAYMENT TERMS ............................................................16

10. PRODUCT REQUIREMENTS .....................................................16

11. CHANGES IN THE WORK ......................................................18

12. (***) AND ACCEPTANCE .....................................................19

13. SOFTWARE .................................................................21

15. INFRINGEMENT WARRANTY AND INDEMNITY ......................................25

16. KNOW HOW AND NEW TECHNOLOGY ..............................................26

17. WARRANTY .................................................................26

18. GENERAL INDEMNITY ........................................................29

20. CONFIDENTIALITY ..........................................................30

21. TERMINATION, SURVIVAL ....................................................31

22. FORCE MAJEURE ............................................................33

23. JOINT WORK PRODUCT .......................................................33

24. ASSIGNMENT ...............................................................34

25. DISPUTES .................................................................34

26. RELATIONSHIP OF THE PARTIES ..............................................35

27. AMENDMENT ................................................................35
</TABLE>

                                      -2-

<PAGE>

<TABLE>
<CAPTION>
<S> <C>                                                                      <C>
28. COMPLIANCE WITH LAWS .....................................................36

30. NO WAIVER ................................................................36

31. SEVERABILITY .............................................................37

32. COUNTERPARTS .............................................................37

33. CHOICE OF LAW ............................................................37

34. REMEDIES .................................................................37

35. IMMIGRATION REFORM AND CONTROL ACT .......................................37

36. IMPORT/EXPORT ............................................................38

37. PUBLICITY ................................................................38

38. NOTICES ..................................................................38

39. INSURANCE REQUIREMENTS ...................................................39

40. ORDER OF PRECEDENCE ......................................................40

41. ENTIRE AGREEMENT .........................................................40

SCHEDULE A ...................................................................43

APPROVED AFFILIATES ..........................................................43

SCHEDULE B - PURCHASE ORDER ..................................................44

SCHEDULE C - PRODUCT PRICE LIST ..............................................45

SCHEDULE E - TRAINING ........................................................50

SCHEDULE F - AURORA OPTICAL SWITCH RELEASE TEST PLAN .........................52

SCHEDULE G - TECHNICAL SUPPORT SERVICES ......................................53

SCHEDULE H - TELLIUM REPAIR AND RETURN POLICY ................................57

SCHEDULE I - SOFTWARE MAINTENANCE AGREEMENT ..................................58

SCHEDULE J - TELLIUM PRODUCT ROLL-OUT SCHEDULE ...............................59
</TABLE>

                                      -3-

<PAGE>

                   AMENDED AND RESTATED PROCUREMENT AGREEMENT

     This amended and restated procurement agreement is made and entered into as
of December 14, 2001 (the "Effective Date") by and between Tellium,
Inc.("Supplier"), a Delaware corporation, with a place of business at 2 Crescent
Place, Oceanport, NJ 07757, and Qwest Communications Corporation, a Delaware
corporation, having its principal offices and place of business at 1801
California Street, Denver, Colorado 80202 ("Qwest") (Supplier and Qwest each
being referred to herein as a "Party" and collectively as the "Parties").

     WHEREAS, the Parties entered into a Procurement Agreement as of September
1, 2000, and amended such Procurement Agreement in the First Amendment to the
Procurement Agreement on April 10, 2001 (together, the "Existing Agreement");

     WHEREAS, prior to the Effective Date hereof and under the Existing
Agreement Qwest has purchased services, products and equipment of Supplier (the
"Existing Products") in exchange for which Qwest has paid and Supplier has
received a payment of (***);

     WHEREAS, the Parties now desire to amend and restate the Existing Agreement
by this Agreement to, among other things, modify the purchase commitment of
Qwest in connection with the (cancellation) of certain warrants to acquire
shares of Supplier;

     WHEREAS, the Parties intend that this Agreement, as defined below, is and
completely describes the sole and entire agreement between the Parties relating
to the subject matter hereof;

     NOW, THEREFORE, in consideration of the foregoing and of the mutual
promises and covenants hereinafter expressed, the Parties hereto agree as
follows:

1. DEFINITIONS

     1.1  The terms used in this Agreement shall have their normal or common
          meaning, except that in addition to terms defined at other places in
          this Agreement, the following terms shall have the following meanings
          for the purposes of this Agreement, the Schedules and any attachments
          thereto:

          (a)  "Affiliate" means (i) any individual, corporation, partnership,
               joint venture, limited liability company, limited liability
               partnership, practice, association, joint stock company, trust,
               unincorporated organization or other venture or business vehicle
               (each an "Entity") in which a Party owns a (***) or greater
               equity interest; (ii) any Entity which, directly or indirectly,
               is in control of, is controlled by or is under common control
               with a Party, as applicable, after applying the attribution rules
               of Section 318 of the Internal Revenue Code; or (iii) any other
               Entity agreed by the Parties. For the purposes of this Agreement,
               control of an Entity ("Control") shall include the power,
               directly or indirectly, whether or not exercised (i) to vote
               (***) (or such lesser percentage as is the maximum allowed to be
               owned by a foreign corporation in a particular jurisdiction) or
               more of the securities or other interests having ordinary voting
               power

                                       -4-

<PAGE>

               for the election of directors or other managing authority of such
               Entity; or (ii) to direct or cause the direction of the
               management or policies of such Entity, whether through ownership
               of voting securities, partnership interest or equity, by contract
               or otherwise. Schedule A (Approved Affiliates) contains the names
               of Qwest Affiliates who have been approved as Approved Affiliates
               as of the Effective Date.

          (b)  "Agreement" means this Amended and Restated Procurement
               Agreement, the schedules listed in Section 2.5 and attached
               hereto (the "Schedules"), and any Purchase Orders hereunder.

          (c)  "Class A Change" means a modification, revision, replacement,
               correction or release of existing Supplier manufactured Product
               (other than an ISU or an Enhancement) to remedy a nonconformance
               to the Specifications required to correct design defects of a
               type that results in electrical or mechanical inoperative
               conditions or unsatisfactory operating conditions, or which is
               recommended to enhance safety, provided that the Product
               incorporating such change, is at least as equally compatible with
               Qwest's network components and other Supplier Products as the
               same Product prior to incorporation of such change.

          (d)  "Current Release" means the latest Version or Release of the
               Software which has been approved by Supplier for commercial use.

          (e)  "Days" or "days" means calendar days, unless otherwise provided
               herein.

          (f)  "Documentation" means the user, technical and operating manuals,
               including the operating instructions, guides and manuals,
               necessary to enable Qwest properly to use and maintain the
               Products.

          (g)  "Effective Date" has the meaning set forth in the preamble
               hereto.

          (h)  "Equipment" means any hardware, equipment, embedded software
               (including firmware) and all physical components, including
               cabling, available from or offered by Supplier.

          (i)  "Enhancement" means any modification or revision to the Software
               that Qwest may license at its option when offered by the Supplier
               in the future and which (i) substantially improves existing
               functions or features, including functions and features for which
               Qwest has already been granted a license, or (ii) adds new
               functions or features.

          (j)  "Form, Fit or Function" shall have the following meaning. "Form"
               means shape; "Fit" means physical size, weight and mounting
               arrangement (e.g., electrical or mechanical connections); and
               "Function" means features and capabilities.

          (k)  "Incremental Software Update" or "ISU" means any modification or

                                       -5-

<PAGE>

               revision to the Software, other than Enhancements, that (i)
               corrects Software Nonconformities or other errors; (ii) supports
               new releases of third party operating systems with which the
               Software is designed to operate; (iii) supports new Equipment;,
               (iv) improves the performance of the Software; or (v) provides
               other updates and corrections. If a modification or revision
               described in clause (ii), (iii) or (iv) above adds new functions
               or features or substantially improves the network performance, it
               shall be deemed to be an Enhancement with respect to those new
               functions and features.

          (l)  "Installation Site" means the building, complex of buildings or
               remote site at which any of the Products are installed.

          (m)  "Intellectual Property Rights" mean all forms of intellectual
               property rights and protections including:

               (i)   All right, title and interest in and to all letters patent
                     and all filed, pending or potential applications for
                     letters patent, including any reissue, reexamination,
                     division, continuation or continuation-in-part
                     applications throughout the world now or hereafter filed;

               (ii)  All right, title and interest in and to all trade secrets,
                     and all trade secret rights and equivalent rights arising
                     under the common law, state law, federal law and laws of
                     foreign countries;

               (iii) All right, title and interest in and to all mask works,
                     copyrights, other literary property or author's rights,
                     whether or not protected by copyright or as a mask work,
                     arising under common law, state law, federal law and laws
                     of foreign countries; and

               (iv)  All right, title and interest in and to all proprietary
                     indicia, trademarks, trade names, service marks, symbols,
                     trade dress, logos and/or brand names protected under
                     common law, state law, federal law and laws of foreign
                     countries.

               (n)  "Network Compatible" or "Network Compatibility" with respect
                    to a Product means that: (i) the Product shall comply, only
                    as applicable to each Product with the American National
                    Standards Institute ("ANSI"), International Standards
                    Organization ("ISO"), European Telecom Standards Institute
                    ("ETSI"), Network Equipment Building Standards ("NEBS"),
                    industry standards, Telecordia Publications, Qwest Technical
                    Publications, and the applicable Specifications, as all of
                    the above exist and are in effect on the date that Qwest
                    issues a Purchase Order, and any other standards mutually
                    agreed to by the Parties in writing; (ii) the Product can be
                    operationally deployed in the network in which it is
                    intended without requiring the replacement of any equipment;
                    (iii) the Product shall be fully compatible and shall
                    inter-operate with other

                                     -6-

<PAGE>

               Products provided under this Agreement unless Supplier
               specifically notifies Qwest otherwise prior to Qwest's purchase;
               and (iv) the Product shall be fully compatible and shall
               inter-operate with third party equipment identified in this
               Agreement or a Purchase Order. Qwest in its sole discretion may
               waive the foregoing compatibility requirements for the purpose of
               deploying new technology offered by Supplier during the Term.

          (o)  "Nonconformity" means an instance of failure of a Product to be
               Operative.

          (p)  "Supplier Personnel" mean any employees, trainers, or other
               support personnel provided by Supplier under this Agreement
               whether or not employed by Supplier (to the extent that such are
               permitted elsewhere under this Agreement). Supplier shall be
               performing under this Agreement at all times as an independent
               contractor to Qwest, and the Supplier Personnel shall not be
               considered as employees or agents of Qwest.

          (q)  "Object Code" means machine-readable computer instructions that
               can be executed by a computer.

          (r)  "Operating Platform" means the computer equipment, hardware and
               operating system, which execute the Object Code and on which the
               Software runs.

          (s)  "Operative" means (i) conforming in all respects to the
               Specifications, the requirements of this Agreement and the
               applicable Purchase Orders in effect at the time Supplier accepts
               the Purchase Order, and (ii) Network Compatible.

          (t)  "Products" means any Equipment, Software, and Documentation,
               including any part thereof, whether or not described in the
               Schedules, available from or offered by Supplier and the Existing
               Products.

          (u)  "Program Manager" means the senior manager of a Party who shall
               have overall responsibility for the day-to-day management and
               administration of this Agreement and who shall work together with
               the other Party's Program Manager to facilitate an efficient
               delivery of Products and Services.

          (v)  "Purchase Order" means the written instrument described in
               Section 7, a form of which is attached hereto as Schedule B,
               under which Qwest orders and Supplier delivers Products or
               Services under this Agreement.

          (w)  "Release" means any revision, modification, replacement, or
               correction to the Software, including an Enhancement or ISU, that
               Supplier makes available to any of its customers for use.

                                      -7-

<PAGE>

          (x)  "Representative" means, with respect to a Party, employees,
               officers, agents or advisors of such Party.

          (y)  "Segment" means a continuous route within the Qwest network.

          (z)  "Services" mean work performed and labor provided by Supplier,
               including design, engineering and implementation of Products,
               Software testing, warranty, technical support, training and
               similar activities.

          (aa) "Software" means any software, including Object Code and Source
               Code that is delivered to Qwest under this Agreement, inclusive
               of the Supplier Intellectual Property Rights, whether or not the
               subject of any patent or copyright, issued or pending. Software
               may include programs used to create, enhance, test or maintain
               any Product delivered under this Agreement. Software includes all
               Releases and Versions.

          (bb) "Source Code" means the human-readable code from which a computer
               can compile or assemble the Object Code of the Software, together
               with a description of the procedure for generating the Object
               Code.

          (cc) "Specifications" mean the technical, functional, performance,
               design, operational, and physical characteristics of a Product as
               defined in the Documentation and as may be described in the
               applicable ANSI, ETSI, NEBS, Telecordia, Qwest documented
               standards, ISO standards, Supplier proposal or other Supplier
               documentation, including the requirements set forth in Schedule F
               (Product Testing Procedure), Schedule J (Tellium Product Delivery
               Schedule and Specifications) and Purchase Orders. If one of the
               above standards is not available for a Product, the formal
               specification developed by Supplier and provided to Qwest shall
               be used.

          (dd) "System" means an Operative combination of Products designed,
               engineered, furnished, installed or implemented by Supplier under
               this Agreement.

          (ee) "Turn-Over" means, with respect to a delivered Product, the
               acceptance procedure set forth in Section 12 has been completed.

          (ff) "Version" means a Release of Software intended for use with a
               particular make and model of computer or a particular operating
               system.

          (gg) "Warranty Period" means the time period specified in Section 17.

     1.2  Additional definitions appear elsewhere in the recitals and subsequent
          Sections of this Agreement.

                                      -8-

<PAGE>

2.   SCOPE

     2.1  The initial term of this Agreement ("Initial Term") commences on the
          Effective Date and continues until December 31, 2005 unless earlier
          terminated or extended in accordance with other provisions of this
          Agreement or unless extended in writing by the Parties. At its option,
          Qwest may extend the Initial Term for a period of up to six (6) months
          (the "Extended Term") by written notice to Supplier prior to the
          expiration date of this Agreement (the Extended Term, if any, together
          with the Initial Term, are hereinafter the "Term").

     2.2  (a) Subject to the terms and conditions of this Agreement, during the
          Initial Term, Qwest will make purchases of Products and Services under
          this Agreement as follows (the "Commitment"): (i) during the period
          from the Effective Date until (***), Qwest will make purchases under
          this Agreement for an aggregate purchase price of not less than
          (***)and (ii) during the period from the Effective Date until (***),
          Qwest will make purchases under this Agreement for an aggregate
          purchase price of not less than (***). Purchases under this Agreement
          that contribute to the satisfaction of the obligation stated in clause
          (i) of the preceding sentence also contribute to the satisfaction of
          the obligation stated in clause (ii) of the preceding sentence.

     (b)  Subject to the terms and conditions of this Agreement, Qwest will make
          purchases of Supplier's Aurora Full Spectrum ("AFS") product under
          this Agreement (the "Additional Commitment") in an aggregate amount of
          not less than (***) on or before (***) (such date, as it may be
          extended from time to time, the "Termination Date"). The Additional
          Commitment shall be subject to, and will only be effective upon, the
          agreement of the Parties (each, in their sole discretion and with no
          obligation to reach any agreement) with respect to (i) the price and
          technical specifications of the AFS product and (ii) the schedule of
          the development, production and deployment of the AFS product. If the
          Additional Commitment shall become effective, then, notwithstanding
          anything to the contrary, from time to time Qwest may, (***) elect to
          delay, extend or postpone the Termination Date (***) by written notice
          thereof to (***); provided, however, that in any event (***) the
          Additional Commitment (***) shall terminate on (***). Any such notice
          shall state the new Termination Date and may or may not include any
          reasons for the election. No such election(s) shall be subject to
          review, modification or change by any court, arbitrator, governmental
          body or other person. Qwest shall have no liability whatsoever to any
          Supplier or any other person with respect to any such election(s). If
          the Additional Commitment does not become effective, Qwest shall have
          no obligation under this Section 2.2(b).

                                      -9-

<PAGE>

          As used in this Agreement, "Commitment" shall include, if effective,
          the Additional Commitment.

          (c) Supplier will complete development and deployment of the products
          and deliverables as set forth in the attached Schedule J. If Supplier
          (i) fails to meet any purchase order delivery date due to a delay or
          failure to have the products described in Schedule J available for
          successful general availability as of their corresponding delivery
          dates, or (ii) otherwise fails to have the products described in
          Schedule J available for successful general availability as of their
          corresponding delivery dates, the Commitment will terminate and all
          obligations of Qwest to purchase any Products or Services hereunder
          shall terminate and Qwest will have no further obligation with respect
          to the Commitment. When used in this Section 2.2(c) and in Schedule J,
          "available for successful general availability" shall mean that such
          products have successfully completed tests substantially similar in
          form and depth to the testing process set forth in Schedule F (Product
          Testing Procedure), in which Qwest shall be entitled to participate,
          and are available for general availability on Supplier's general price
          list.

          (d) Subject to Section 21.3, all purchases of Products or Services
          from Supplier or its Affiliates by any of Qwest and its Affiliates
          will be credited toward the Commitment.

     2.3  This Agreement shall apply to purchases of Products and Services by
          Qwest or its Affiliates.

     2.4  Qwest's Affiliates may issue a Purchase Orders under this Agreement if
          they (i) (***), which fulfillment of (***) will determine within (***)
          after notice from (***) and (ii) (***) and (***) of this Agreement. If
          Supplier has not provided written acknowledgement of an Affiliate's
          failure to meet such credit standards within such (***) period, the
          Affiliate shall be deemed to have been authorized to purchase under
          this Agreement and shall be deemed an Approved Affiliate. If there has
          been a transfer of (***) or more of the assets of any Approved
          Affiliate who (i) is seeking to place an new Purchase Order under this
          Agreement or (ii) has an outstanding Purchase Order of (***) or more,
          Supplier shall have the right to (***) Purchase Order and the right to
          review such Approved Affiliate's (***) as such. If, upon review, the
          Approved Affiliate no longer qualifies for approval pursuant to this
          Section, such Affiliate shall no longer be eligible to place Purchase
          Orders under this Agreement without the satisfaction of another (***).

                                      -10-

<PAGE>

     2.5  The following Schedules attached hereto are an integral part of this
          Agreement and are incorporated herein by reference.

          A.   Approved Affiliates
          B.   Form Purchase Order
          C.   Product and Price List
          D.   Purchase Order Confirmation Procedure
          E.   Training
          F.   Product Testing Procedure
          G.   Technical Support Services
          H.   Tellium Repair and Return Policy
          I.   Software Maintenance Agreement
          J.   Tellium Product Delivery Schedule and Specifications

3.   SUPPLIER OBLIGATIONS

     3.1  Supplier shall perform all Services and deliver all Products ordered
          under this Agreement and shall perform all work in a professional and
          workmanlike manner, in accordance with all requirements, acceptance
          criteria and Specifications of this Agreement and the warranties
          provided hereunder. Among its obligations, Supplier shall:

          (a)  complete all tasks required by an accepted Purchase Order by
               providing all necessary resources, personnel, materials and
               equipment;

          (b)  adhere to agreed delivery dates;

          (c)  supervise and manage the overall Supplier effort under each
               Purchase Order and this Agreement and coordinate its efforts with
               the Qwest Program Manager; and

          (d)  provide competent personnel of sufficient experience and
               expertise to fulfill the goals of this Agreement.

     3.2  In addition to other requirements contained in this Agreement,
          Supplier will consider the following Qwest objectives in its delivery
          of Products and Services under this Agreement:

          (a)  ensuring a smooth transition from the existing products to new
               Products provided hereunder as possible;

          (b)  training; and

          (c)  using an orderly approach for any significant implementation of
               new Products.

                                      -11-

<PAGE>

     3.3  Supplier is responsible for providing qualified personnel in the
          quantities and of the experience necessary to fulfill the requirements
          of this Agreement. When requested by Qwest, Supplier shall provide the
          names of Supplier Personnel providing Services at Qwest sites.

4.   QWEST OBLIGATIONS

     4.1  (***) by the end of the third quarter of each calendar year, Qwest
          will provide Supplier with a forecast of Qwest's estimated
          Product requirements for the next calendar year (each a "Forecast").
          Qwest will update this Forecast each quarter and when significant
          changes occur. The Forecast shall be for planning purposes only and
          shall not represent Qwest's commitment to purchase any or all such
          Products or create any other obligation whatsoever by Qwest.

     4.2  Qwest agrees that all Supplier Personnel who are approved in writing
          by Qwest to be involved in any effort under this Agreement will be
          provided reasonable access to Qwest's premises during mutually agreed
          times as necessary. Supplier Personnel shall comply with site and
          security regulations specified by Qwest.

     4.3  For all Products not on Supplier's price list ("Non-Price List
          Products"), Qwest shall issue a written request for proposal ("RFP")
          to Supplier no later than (***) prior to the required equipment ship
          date for Non-Price List Products included in the Forecast.
          Non-forecasted Non-Price List Products equipment will require (***)
          advance notice to Supplier. Supplier's sales engineering shall issue a
          written proposal to Qwest for Product purchases within two weeks of
          receipt of the RFP, or a reasonable time thereafter as necessary to
          complete the proposal.

     4.4  For avoidance of doubt, Qwest shall have no obligation to provide any
          Forecast, access, RFPs, meetings or any other matter with respect to
          any Products and Services it expects to purchase in connection with
          the satisfaction of the Commitment.

5.   GOVERNANCE

     5.1  The Parties will mutually determine appropriate intervals for periodic
          meetings to be held between representatives of Qwest and Supplier. The
          Parties currently expect these meetings will include the following:

          (a) a weekly meeting between the respective project management teams;

          (b) a monthly management meeting to review Supplier's progress under
              open Purchase Orders, project schedules, financial and
              administrative matters and such other matters as appropriate; and

          (c) a quarterly executive review meeting to review relevant contract
              and performance issues. Each Party's Program Manager or individual
              designated by the Program Manager will attend each meeting.

          Each Party's Program Manager or individual designated by the Program
          Manager will attend each meeting.

                                      -12-

<PAGE>

     5.2  Qwest reserves the right to require replacement of any Supplier's
          employee or contractor performing work for Supplier under this
          Agreement if Qwest is dissatisfied with the performance of that
          individual and determines that the continued assignment of such
          individual is not in the best interest of Qwest. Qwest shall give
          Supplier written notice requesting that the individual be replaced
          (***). Supplier shall replace such individual with a person of
          suitable ability and qualifications within (***) from the request or
          such additional time period as may be reasonably required under the
          circumstances.

     5.3  Supplier shall provide to Qwest written progress reports as agreed by
          the Parties, on at least a weekly basis, delivered by electronic mail
          followed by a paper copy to Qwest's designated representative.
          Progress reports shall include: (i) the status of delivery under all
          open Purchase Orders for Products; (ii) items completed during the
          reporting period; (iii) items to be completed within the next
          reporting period; (iv) open action items; and (v) any other action
          items required by Qwest, listing the party responsible for such
          actions.

6.   PRICING

     6.1  Qwest will receive a (***) discount off the list price of all Supplier
          Products and Services, including the Products set forth in Schedule C
          (the "List Price").

7.   ORDERING

     7.1  (a) Qwest shall issue Purchase Orders, a form of which is attached
          hereto as Schedule B, to acquire all Products and Services under this
          Agreement. All Purchase Orders must be submitted (***) prior to the
          delivery date designated in the Purchase Order (with respect to (i),
          below) or as agreed upon by the Parties (with respect to (ii), below)
          (the "Order By Date"). Upon request by Qwest, the Parties will in good
          faith discuss a shorter period for Purchase Order submission.

          (i) For all Purchase Orders less than or equal to (***) of the
          Forecast amount which are submitted prior to the Order By Date,
          Supplier agrees to be bound by the designated delivery date.

          (ii) For all Purchase Orders that are in excess of (***) of the
          Forecast or are submitted after the Order By Date, (***) will (***) on
          the (***).

     7.2  Supplier shall confirm and accept the Purchase Order in writing in
          accordance with Schedule D at which point the Purchase Order shall
          become a binding commitment. Subject to Section 7.1, Supplier agrees
          to accept all Purchase Orders issued by Qwest under this Agreement
          provided that such Purchase Orders conform with the requirements of
          this Agreement.

     7.3  Any changes to a Purchase Order shall be made in writing.

     7.4  All Purchase Orders issued hereunder by Qwest or the Approved
          Affiliates shall

                                      -13-

<PAGE>

          reference this Agreement and shall be deemed to incorporate and be
          governed solely by the terms and conditions set forth herein. Any
          changes to the terms and conditions of the Agreement contained in
          Supplier's written acknowledgement of a Purchase Order shall have no
          force or effect.

     7.5  Qwest Affiliates approved by Supplier may purchase Products and
          Services under this Agreement, provided that such Affiliate agrees to
          be bound by the applicable terms and conditions of this Agreement with
          respect to Qwest. Each Affiliate purchasing any Products or Services
          under this Agreement shall have the rights and obligations of Qwest
          under this Agreement with respect to such Products and Services, the
          term "Qwest" shall refer to such Affiliate with respect to such
          Products and Services, and Qwest shall not have any obligations with
          respect to such Products and Services.

8.   DELIVERY AND SHIPMENT

     8.1  Supplier shall deliver Products as required under this Agreement to
          Qwest at the locations and at the times specified by Qwest, and agreed
          to by Supplier in an accepted Purchase Order, this Agreement or as
          otherwise agreed in writing by the Parties. For purposes of this
          Section 8, "Buyer" shall mean Qwest or its Affiliate, as applicable.
          Supplier shall deliver all Products and Services at the designated
          location in a timely manner.

     8.2  Supplier shall ship all Products, freight prepaid, FOB destination
          designated in the Purchase Order or to such other location as the
          Parties may agree ("Destination"). The method of shipment shall be
          consistent with the nature of the Products and hazards of
          transportation. Risk of loss for all Products ordered in accordance
          with this Agreement shall pass to Buyer upon delivery by Supplier at
          the Destination except loss or damage attributable to the Supplier's
          fault or gross negligence. Such loss, damage, or destruction shall not
          release Supplier from any obligation hereunder. Title to Products
          (excluding Software) shall pass to Buyer upon delivery to the
          Destination. Supplier shall convey good title, free from any claim or
          encumbrance, for all Products (excluding Software) delivered to Buyer
          under this Agreement. Supplier will pack the Products purchased
          hereunder for transport in accordance with its commercial standards
          and will deliver the Products to a carrier of the mode of
          transportation selected by Supplier unless otherwise agreed upon in
          writing by the Parties.

     8.3  If Supplier fails to meet any agreed schedule, Buyer, without limiting
          its other rights or remedies as may exist, may direct expedited
          routing of Products and any excess costs incurred thereby shall be
          paid by Supplier unless otherwise agreed in writing by the Parties.
          Buyer shall not be liable for Supplier's commitments or production
          arrangements in excess of the amount, or in advance of the time,
          necessary to meet Buyer's delivery schedule. Delivery shall not occur
          (***) in advance of the scheduled date of delivery unless otherwise
          agreed in a signed writing by Supplier and Buyer. For delivery to new
          sites, such advance delivery shall not be allowed, except as set forth
          in a signed writing executed by Buyer. If delivery occurs prior to the
          period authorized above and designated storage has

                                      -14-

<PAGE>

          not already been established by Supplier, Buyer may (i) return
          delivered items at Supplier's expense for proper delivery, or (ii)
          place delivered items in storage at Supplier's expense until the
          scheduled date of delivery.

     8.4  The Parties agree that for all shipments that otherwise meet the
          designated delivery dates (a) any failure to supply all Products
          ordered in a single shipment or (b) any partial shipment or delivery
          of an Order in installments shall not constitute a breach of this
          Agreement provided that Supplier has received Buyer's prior written
          approval of the same, such approval not to be unreasonably withheld;
          it being understood that any such Products shall not be deemed
          delivered unless all Products included in any Purchase Order are
          delivered.

     8.5  Performance Incentives

          (a)  Subject to Section 8.4, for accepted Purchase Orders of Products
               with an aggregate value of (***) or more, Supplier and Qwest
               agree that it may be difficult, if not impossible, to accurately
               determine the amount of damages that Qwest may incur if Supplier
               fails to deliver the Products as scheduled. Accordingly, if
               delivery has not occurred with respect to any Product, Segment or
               System within (***) of a Forecast as of the scheduled date, in
               addition to its other rights and remedies hereunder, Buyer shall
               be entitled to daily performance incentives in a specified and
               predetermined amount of (***) of the total price of the affected
               Product, Segment or System, per day late, up to a maximum of
               (***) of total price of the Product, Segment or System
               ("Performance Incentive").

          (b)  Buyer shall not assess Performance Incentives to the extent that
               Supplier has been delayed by Buyer not fulfilling its obligations
               described in Section 4.

          (c)  Buyer may in its sole discretion by written notice to Supplier
               (a) unilaterally delay the scheduled delivery date of any Product
               or Service or (b) cancel or suspend delivery of any Product or
               Service ordered under this Agreement. Such unilateral delay,
               cancellation or suspension shall be without penalty or cost
               provided that Buyer gives written notice to Supplier at least
               (***) prior to the scheduled shipping date of the affected
               Product or the scheduled delivery date of the affected Service.
               If a delay directed by Buyer lasts more than (***) beyond the
               scheduled delivery date of the Product, or a cancellation
               directed by Buyer occurs within (***) of the scheduled shipping
               date of the Product, Buyer agrees to pay Supplier for the actual
               restocking costs it incurs as a result of the delay or
               cancellation, not exceeding (***) of the (***) of the affected
               Product. The foregoing shall be Supplier's sole remedy for delay,
               cancellation or suspension of the delivery of a Product or
               Service by Buyer.

     8.6  Equipment Tracking Data. Supplier shall provide Qwest with quarterly
          reports containing the following information in a jointly developed
          format. The reports

                                      -15-

<PAGE>

          shall contain Equipment information, including: (1) a description of
          the Equipment; (2) Supplier part number; (3) Equipment destination by
          building (final); (4) shipping date; and (5) Supplier serial number.

     8.7  In the event that Qwest installs a bar coding system for its fixed
          assets, Supplier shall apply a Qwest asset tag (to be supplied by
          Qwest) at either the manufacturing site or at the point of shipment
          for the Equipment in a manner that allows Qwest to easily read the
          asset tag. Supplier may charge an agreed fee to cover any reasonable
          Supplier's costs associated with such bar coding system. A joint
          meeting will be held between Supplier and Qwest within thirty (30)
          days of contract execution to further define these requirements and
          fees (if any).

9.   PAYMENT TERMS

     9.1  Subject to Section 12, Supplier shall invoice Qwest for Products upon
          shipment and Qwest shall pay to Supplier the price of each shipment
          (including any prepaid transportation and/or insurance) within (***)
          from the date of Acceptance. For all other Services, Supplier shall
          invoice Qwest upon Acceptance of the Services. Charges for any other
          amounts payable pursuant to this Agreement shall be paid by Qwest
          within (***) from the date of invoice. All payments shall be made in
          U.S. Dollars. The date of the payment shall be deemed to be the date
          (***) is (***).

     9.2  Qwest is not required to pay invoiced amounts disputed in good faith
          until such dispute is resolved; provided, however, Qwest shall pay
          that (***) of a (***) which is (***) unless it is (***) to (***). Once
          the dispute is resolved, the invoice shall be paid within (***)
          following such resolution, or in the time frame set out in Section
          9.1, whichever is greater.

     9.4  Credits owed to Qwest under this Agreement, may be applied against
          amounts owed to Supplier under this Agreement, or at Qwest's request
          for amounts other than Management Discounts, retroactive discounts
          paid to Qwest within (***) following such request.

     9.5  Payment shall not be considered Acceptance of any Products or Services
          (which Acceptance shall be as set forth in Section 12. Supplier shall
          provide Equipment, Software and Services without interruption in the
          event of disputes concerning an invoice amount provided that the
          Parties are working together in good faith to resolve the dispute.

10.  PRODUCT REQUIREMENTS

     The following provision shall apply to all Products provided under this
Agreement.

     10.1 Documentation.

          (a)  Supplier shall furnish to Qwest one set of Documentation per
               Installation

                                      -16-

<PAGE>

               Site on CD ROM, and a reasonable number of complete sets in both
               CD ROM and paper form for Qwest engineering staff for use in the
               operation and ongoing maintenance of the Products. Supplier shall
               deliver reasonable Documentation to allow Qwest to install and
               use each ISU and Enhancement.

          (b)  Qwest may copy the Documentation subject to the rights and
               restrictions in this Agreement and for Qwest's internal use only.
               All such Documentation is to be treated in accordance with the
               terms of this Agreement. Updates to Documentation shall be
               provided at no charge during the Warranty Period.

          (c)  The Documentation shall describe fully the proper procedure for
               using the Products and provide sufficient information to enable
               Qwest to operate and maintain the Products.

     10.2 Equipment.
          ----------

          (a)  Supplier shall make available to Qwest sufficient repair and
               spare parts for each Product furnished under this Agreement to
               keep such Product Operative for a period of (***) from the date
               of last shipment of the Product. (***) for (***) shall not exceed
               (***) for (***) from the (***) of (***). After such period, (***)
               for such (***) shall be at (***). Supplier, at its option and
               expense, may replace Products for which repair parts are no
               longer available with functionally equivalent Products provided
               that such products are Network Compatible.

          (b)  Supplier shall provide Qwest with written notice of the
               manufacturing discontinuance for any particular Product, and,
               subject to subsection (a) above, shall furnish the repair parts
               to Qwest at the (***) unless furnished during the Warranty Period
               in which case a supply that may be reasonably needed during the
               Warranty Period, and would otherwise be included at no cost
               pursuant to the Warranty provided in Section 17, shall be
               supplied (***).

          (c)  Supplier shall neither provide nor incorporate any Product which
               adversely affects Form, Fit or Function, Network Compatibility,
               interface or interchangeability of Qwest's existing hardware or
               software environment without the prior express written approval
               of Qwest. Qwest shall notify Supplier if it becomes aware that a
               Product is not Network Compatible.

          (d)  In the event of a Class A Change; Supplier shall provide
               immediate written notice to Qwest and shall proceed promptly to
               make the necessary changes at Supplier's expense per the repair
               and return procedures set forth in Schedule H, Supplier shall
               bear all costs and expenses relating to such retrofit or
               replacement and all peripheral equipment and software

                                      -17-

<PAGE>

          (e)  All changes must be Network Compatible.

     10.3 Substitutions and Modifications.
          -------------------------------

          Supplier shall give Qwest (***) advance written notice of any material
          modification in the design or Specifications of the Products supplied
          hereunder to Products previously made available hereunder. If any such
          modification, which affects the Form, Fit or Function of the Products
          and (i) adversely affects the expected life, operation or performance
          of any Equipment or Software; (ii) causes Qwest to incur significant
          costs (including a write down of equipment or equipment-related
          assets); (iii) prevents proper operation of equipment in the Qwest
          network that otherwise meets Specifications; or (iv) prevents any
          Product from meeting the applicable Specifications, Qwest shall have
          the right to return to Supplier such modified Product and Supplier
          shall have the obligation of replacing such modified Product with
          compliant Product. No such replacement or substitution shall result in
          an increased purchase price.

     10.4 Incremental Software Updates.
          ----------------------------

          During the Warranty Period and in accordance with Section 13.2,
          Supplier shall offer to Qwest any ISUs contained in a Release or
          Version of the Software at no additional charge when they are made
          available to any of Supplier's other customers or upon a production of
          new Release or Version. Providing such ISUs shall not relieve Qwest of
          its obligation to pay license fees otherwise due for Enhancements used
          by Qwest. Qwest shall be responsible for installation of such ISUs in
          the network. Supplier shall make all Releases available to Qwest no
          later than it makes the same available to any of Supplier's other
          customers.

     10.5 Training.
          --------

          Supplier shall provide the training courses referred to in Schedule E
          at the prices set forth in Schedule C. Supplier shall provide, at no
          additional charge, (***) network training seat days ("Seat Days") for
          the Term of this Agreement; provided, however, that (***) where the
          training involves teaching trainers how to train other individuals at
          Qwest (hereinafter a "Train The Trainer Seat Day") will count as
          (***). The training will take place at a Supplier training location
          agreed to by the Parties, and will consist of materials developed and
          controlled by Supplier. All travel and living expenses for the
          training sessions shall be borne by Qwest. Training in addition to
          that described in this Section 10.5 shall be provided at the then
          current Supplier rates.

11.  CHANGES IN THE WORK

     11.1 Any additional charges authorized by Qwest in writing, not contained
          in any Purchase Order or Schedule, shall reflect Supplier time and
          materials (and Supplier subcontractor time and materials) as stated in
          Schedule C or as otherwise agreed by the Parties in writing and shall
          apply towards the satisfaction of the

                                      -18-

<PAGE>

          Commitment.

     11.2 Claims for Delay.
          ----------------

          (a)  Beginning in 2003, if Supplier wishes to request an extension in
               the delivery date for Products provided in a Purchase Order,
               written request shall be given to Qwest at the time the delay
               begins, or within (***) thereafter if the resulting delay was not
               reasonably foreseeable. The request shall state the circumstances
               of the occurrence, the justification for the delay and extension
               of time, and the estimated duration of the delay and extension
               requested. Supplier shall also be obligated to do all in its
               power to mitigate the adverse impact of such delay at no
               additional cost to Qwest.

          (b)  Supplier agrees that it shall not request extensions of time
               resulting from normal inclement weather.

          (c)  An extension of time shall be the sole remedy of Supplier for any
               delay caused by any reason or occurrence. Subject to Section 8.5,
               Supplier acknowledges such extension of time to be its sole
               remedy and agrees to make no claim for damages or added charges
               of any sort for delay in the performance of this Agreement or any
               Purchase Order for any reason. Entitlement to any such extension
               of time shall be subject to compliance with all notice and
               submission requirements imposed by the Agreement concerning such
               claims.

12.  (***) AND ACCEPTANCE

     12.1 (***).

          All Products shall be subject to a (***) as set forth in (***) hereto.
          In addition, for Products not certified by Qwest as (***) Accepted,
          Qwest agrees to (***) and (***) a (***) by (***) by (***), such (***)
          to be generally in accordance with (***), and as finally (***) by
          (***). Upon successful completion of the (***) Qwest will (***) in a
          form determined by Qwest, such Products as certified for "Expedited
          Acceptance." Upon receipt of such certification by Qwest, Qwest shall
          have the right to inspect and reject such Products for failure to be
          Network Compatible or other errors for a period of (***) from delivery
          (the "Expedited Inspection Period"). Such Products shall be deemed to
          have passed inspection and accepted ("Acceptance" or "Accepted") after
          the expiration of the Expedited Inspection Period, unless Qwest
          notifies Supplier, during the Expedited Inspection Period, of a
          reasonable cause for rejection of the Products due to a failure (***)
          or other error. For all Products that have not been (***) Accepted by
          Qwest, each Approved Affiliate may perform (***). Upon successful
          completion of the (***), such Approved Affiliate (***) that for such
          Approved Affiliate, such Product is certified for Expedited
          Acceptance. Such Approved Affiliate shall then have the right to
          inspect and reject such Product for failure to be Network

                                      -19-

<PAGE>

          Compatible for the Expedited Inspection Period.

     12.2 Acceptance.
          ----------

          For any Products not certified for Expedited Acceptance, Qwest shall
          have the right to inspect and reject such Products for failure to be
          Network Compatible or other errors (or other failures to meet the
          Specifications) for a period of (***) from scheduled delivery (the
          "Inspection Period"). Such Products shall be deemed to have passed
          inspection and accepted after the expiration of the Inspection Period,
          unless Qwest notifies Supplier, during the Inspection Period, of a
          reasonable cause for rejection of the Products due to a failure (***)
          or other error. Notwithstanding the foregoing, Products will be deemed
          accepted upon the full (***) for (***) with (***) by Qwest,
          irrespective of Expedited Acceptance status or the expiration of the
          Inspection Period. Any subsequent order of a Product that has
          previously been accepted pursuant to this Section 12.2 must (***) the
          (***) in (***).

     12.3 Failure of Acceptance.
          ---------------------

          Qwest's payment obligations in Section 9 are contingent upon
          acceptance of the corresponding Product and related Services in
          accordance with Sections 12.1 and 12.2 and (***). If a Product fails
          to achieve acceptance as provided in Sections 12.1 or 12.2 (***) (or
          otherwise fails to meet the Specifications), Qwest may return the
          Product, title to which shall pass to Supplier upon delivery to
          Supplier, and apply amounts paid for such Product or Service to any
          unpaid invoice from Supplier or, in Qwest's sole discretion, demand
          repayment from Supplier. Supplier shall repay such amounts within
          (***) of any such demand. In any event, the Commitment shall be
          reduced by the invoiced amount of such returned Product or Service.

     12.4 New Products.
          ------------

          In the event Supplier develops New Products Supplier will give Qwest
          (***) notice thereof, along with the expected Specifications therefor
          and pricing and discounts. Qwest may request that this Agreement be
          amended in order to make the terms of this Agreement applicable to the
          purchase by Qwest of New Products and the Parties shall negotiate in
          good faith the terms of such amendment, including pricing, discounts,
          and delivery schedules, and the conduct by Qwest of a (***) for the
          New Product. Such (***) shall be substantially similar to the (***)
          described in (***) hereto. The terms of this Agreement, as amended
          with respect to the New Product, shall apply to the purchase and sale
          of such new Products. New Products shall mean Products with material
          changes in previously applicable Specifications, which Specifications
          have not been approved by Qwest.

                                      -20-

<PAGE>

13.  SOFTWARE

     13.1 License Grant.
          -------------

          Upon delivery of Software hereunder, Supplier grants to Qwest and each
          of its Affiliates (***) (for the purposes of this Section, each a
          "Licensee") a nonexclusive, irrevocable, perpetual, worldwide license
          and right to use and make copies of the Software and the Intellectual
          Property Rights for which the Licensee has paid Supplier a license fee
          for use solely with the applicable Products so long as Licensee uses
          such Products in accordance with this Agreement. Enhancements may be
          provided at a later date as set forth in Schedule C. A "right to use"
          license under the same terms and conditions as set forth in this
          Section 13 for such Enhancement will be effective upon payment by the
          Licensee.

     13.2 Releases.
          --------

          Supplier may, from time to time, issue Releases of the Software. As
          set forth in Section 1 (Definitions), Supplier may classify such
          Release as (i) an Enhancement, (ii) an ISU or (iii) both. During the
          Warranty Period and the term of any maintenance or support agreement,
          (***) shall (***) with (***) of (***). The Licensee acknowledges that
          from time to time Enhancements may be contained in a Release that have
          not been licensed to the Licensee. The Licensee and Supplier shall
          agree in writing on the license fee for Enhancements that the
          Licensee, in its sole discretion, decides to use. Notwithstanding the
          foregoing, ISUs and Enhancements shall not include the cost of any
          associated hardware that may be required to update such ISUs. The
          Licensee shall be responsible for the installation of such Releases in
          the Network.

     13.3 Title.
          -----

          Subject to Section 13.5, Title to the Software described herein shall
          remain with Supplier, or with the various suppliers to Supplier whose
          software or software components are contained in the Software and
          whose rights of ownership are maintained through restrictive
          agreements with Supplier.

     13.4 Limitations of License Grant.
          ----------------------------

          (a)  The Software and Documentation are to be used only by the
               Licensee, for its own business use, and only for the intended use
               of the Software and Documentation (***) and (***) and only in
               connection with Product for which a license fee has been paid.

          (b)  Licensed use is limited to the Software as delivered by Supplier
               to Licensee and does not permit modification or use of any
               modified form of the Software, except for minor user
               modifications or customizations. Licensee may not duplicate the
               Software, except to make a reasonable number of backup copies of
               the Software for use in the event of Product failure. If
               duplication (***) for (***) then (***) shall (***) and (***) to

                                      -21-

<PAGE>

               (***) the (***) of (***).

          (c)  The Software and Documentation furnished hereunder are the
               property of Supplier and are to be considered Supplier's
               proprietary information. Licensee shall not (***) or (***) the
               (***) or (***), or (***) or (***) of (***)), before or after
               termination of this Agreement, except as may be permitted in
               writing by Supplier. Licensee shall immediately notify Supplier,
               in writing, of any knowledge that any unlicensed party possesses
               the Software or Documentation. Licensee shall safeguard said
               Software with the same degree of care and diligence as Licensee
               affords to its own similar property.

          (d)  The Licensee acknowledges that Software may contain programs that
               have been supplied by, and are proprietary to, third party
               software suppliers. The terms and conditions of any such third
               party program licenses may be different than the terms herein,
               and in such event, the Licensee must agree in writing to such
               terms prior to delivery for such terms to be effective. Supplier
               will extend to the Licensee any rights Supplier may have under
               any such third party licenses.

     13.5 Derived Products and Derived Dependent Products.
          -----------------------------------------------

          (a)  Any (i) Licensee (***) from the (***) of the (***) and the (***)
               of (***) by the Licensee (ii) Licensee (***) or (***); (iii)
               Licensee (***) or (***) of the (***) or (***) the Licensee; and
               (iv) unless otherwise set forth in a signed writing by the
               Parties referencing this Section, any portion of a (***)
               configuration, application or arrangement of the Software created
               by Supplier (either with or without the Licensee) after a (***)
               by the Licensee therefore shall not be considered derived
               products and shall be distinct in ownership from that of the
               Software as received by the Licensee and shall be owned by the
               Licensee (and are hereby assigned to the Licensee) (collectively,
               the "Qwest Products"). The foregoing (iv) shall not (***) to
               (***) or (***) or (***) and does not (***) in any (***) to (***)
               of the (***) from (***) of any (***) or (***). Any other
               configuration, application, or arrangement of the Software, shall
               be considered a derivative work and shall be the sole and
               exclusive property of Supplier; provided, however, that Supplier
               may, at its discretion, assign or license (***) or (***) not to
               be unreasonably withheld.

          (b)  Any (***) or (***) of (***), which are (***) of the (***) and are
               (***) the (***) for (***), shall be considered a derived products
               to which Supplier retains title and ownership and to which
               Licensee is granted an exclusive perpetual, irrevocable,
               worldwide right to use solely in its dependent form, and in
               conjunction with the Software for so long as such Licensee uses
               such Software in accordance with this Agreement.

          (c)  Supplier expressly prohibits, and Licensee agrees to refrain
               from, any

                                      -22-

<PAGE>

               attempt by Licensee, Licensee's agent or to permit any third
               party to disassemble, reverse compile, reverse engineer, or, in
               any similar way, expose the actual instruction sequences,
               internal logic, protocols, algorithms or other intellectual
               property represented within the Software, which Supplier
               considers to be its proprietary information and trade secret
               whether or not said intellectual property is included in any
               patent or copyright. Notwithstanding any other provision of this
               Agreement, any (***), or (***) by Licensee or any other party
               shall not be assigned and shall be deemed the property of
               Supplier, for which no right to use is granted to Licensee herein
               and for which Supplier shall bear no obligations for support.

     13.6 Software Maintenance and Support.
          --------------------------------

          (a)  Supplier shall provide Software technical support services as
               provided in Schedule G.

          (b)  Notice to the Licensee of corrections or additions, modifications
               or adjustments to the Software generally available to other
               Supplier's customers with the same Release shall be sent to a
               designated the Licensee contact. Supplier will, at its own
               discretion, make such additions, modifications or adjustments to
               the Release of the Software commonly known as the Current Release
               except if such adversely affects the Form, Fit or Function, in
               which case the Licensee may refuse to accept such without
               amending its rights or Supplier's obligations hereunder.

          (c)  Supplier agrees that at any point in time it will support the
               then Current Release of the Software plus the (***) immediately
               preceding Releases.

     13.7 (***) Delivery.
          --------------

          (a)  Supplier shall keep and maintain a copy of Software (***) and
               other Documentation relevant to the use and maintenance of the
               Software licensed hereunder, including the Current Release of the
               Software. Should Supplier at a future date (i) declare voluntary
               bankruptcy or be the subject of an involuntary bankruptcy (***)
               or (***) (or, (***) may (***) or (***)) of the Software; or (ii)
               cease supporting the Products or any other product incorporating
               such Software (***) pursuant to this Agreement for a non-material
               amount of time, then Supplier agrees and commits to the Licensee
               that it will promptly and (***) to the fullest extent permitted
               by any third party intellectual owners, make available all such
               Software (***) and other relevant Supplier proprietary data
               information which Supplier has a legal right to sublicense, and
               hereby grants to each Licensee a non-exclusive perpetual,
               irrevocable, worldwide license to use, modify (including creating
               derivative works), and copy such Software (***) solely for the
               purpose of supporting and maintaining the Products including
               Software and only for so long as Licensee (***) such Products or
               Software

                                      -23-

<PAGE>

               in accordance with this Agreement.

          (b)  Supplier acknowledges that if a trustee in bankruptcy or Supplier
               as a debtor in possession rejects this Agreement, the Licensee
               may elect to retain its rights under this Subsection as provided
               in Section 365(n) of Title 11, United States Code (the
               "Bankruptcy Code"). In that event, the license for the Software
               (***) or other relevant information will include the following
               provisions:

               (i)   The Licensee has no further recourse with respect to
                     support in the areas to which the license applies;

               (ii)  Supplier will assume no obligations or liabilities with
                     respect to infringement (related to the (***)), and/or the
                     Licensee's inability to successfully support the Software
                     (***); and

               (iii) Supplier's then standard terms applicable to
                     confidentiality obligations and Supplier's disclaimer of
                     liabilities with respect to the Licensee's subsequent use
                     (of the Software (***)).

     13.8 Documentation.
          -------------

          In addition to the requirements of Section 10.1, Supplier shall
          provide one set of instructions and reference manuals in both printed
          and electronic forms free of charge for all Software. All such sets of
          instructions and reference manuals are ordered as separate line items.
          Licensee may purchase additional sets at the price and discount
          specified on Schedule C. Planning guides are available and will be
          delivered free of charge with each and every Release delivered to
          Licensee.

     13.9 Transfer of License.
          -------------------

          (a)  The Licensee may transfer, assign or sublicense (such sublicense
               only to the extent (***) to (***) those rights (***) to use the
               Products), any license granted by Supplier hereunder, to any
               Affiliate, holding company, subsidiary of holding company,
               subsidiary, associated company, or successor in interest of the
               Licensee or any person controlling or controlled by any of the
               foregoing or to any person directly or indirectly under common
               control with the Licensee (collectively, "License Transferee"),
               provided such License Transferee (i) has (***) to be (***) by the
               (***) of (***) and (ii) of which (***) has (***).

          (b)  The Licensee and any successor to the Licensee's title in any
               Products shall have the right without further consent of Supplier
               to assign or sublicense (such sublicense only to the extent
               necessary to grant those rights necessary to use the Products),
               the License herein granted to any other party who subsequently
               acquires the right to use the applicable Products, provided that
               any such other party prior to the transfer of the applicable
               Software (***) the terms and conditions of this license.

                                      -24-

<PAGE>

14.  TECHNOLOGY CURRENCY

     Supplier understands and acknowledges that Qwest is entering into this
     obligation (including the incorporated pricing and discount terms) based on
     the expectation that Supplier will (***) (i) continue to remain
     technologically competitive and (ii) offer products to Qwest that will
     allow productivity savings, based on Qwest's use of such products. Supplier
     shall (***) provide products using current technologies that will enable
     Qwest to take advantage of technological advancements in its industry and
     support Qwest's efforts to remain competitive in the markets in which it
     competes.

15.  INFRINGEMENT WARRANTY AND INDEMNITY

     15.1 Supplier warrants that it or its Affiliates are the owner of the
          Intellectual Property Rights of the Products, or, if the Products or
          other materials contain third party products or software, that
          Supplier has the full power and authority to deliver, convey and grant
          to Qwest the related license and other rights granted under this
          Agreement. Supplier further warrants that Supplier's provision of
          Services under this Agreement, grant of the licenses hereunder, and
          Qwest's use of the Products will not constitute a misappropriation of
          any trade secrets, infringement or misappropriation of any copyright
          or trademark or (***) any patent.

     15.2 Supplier shall defend or settle, at its expense, any threatened or
          actual claim, suit or proceeding made against Qwest that use of the
          Products infringes any patent, trademark, copyright, trade secret or
          other intellectual property right of a third party ("Infringement
          Claim"), and shall indemnify Qwest and hold it harmless against all
          damages, claims, costs of investigation, litigation, settlements,
          judgments and disbursements, including reasonable attorneys' fees
          ("Losses") arising out of the foregoing. In order for this
          indemnification to apply to a claim, Qwest shall give Supplier prompt
          notice following Qwest's knowledge of any such Infringement Claim,
          shall allow Supplier to control the defense of and settlement
          negotiations with regard to such claim, provided that Qwest shall
          approve the terms of any settlement or compromise with respect to any
          Infringement Claim directed to Qwest's use of the Product unless
          Supplier has the (***) the settlement or compromise. The Parties shall
          provide reasonable cooperation and assistance in the defense of the
          Infringement Claim.

     15.3 If any Product furnished under this Agreement becomes, or in Qwest or
          Supplier's reasonable opinion is likely to become, the subject of any
          claim, suit, injunction or proceeding arising from or alleging
          infringement of, or in the event of any adjudication that such Product
          infringes on, any Intellectual Property Right, Supplier, at its
          expense, shall take the following actions in the listed order of
          preference:

          (a)  (***) procure in a timely manner for Qwest and its Affiliates (if
               applicable) the right to continue using the Product (***) or
               (***) of (***) or (***); or if those efforts are unavailing;

                                      -25-

<PAGE>

          (b)  (***) replace or modify the Product to make it non-infringing;
               provided, however, that such modification or replacement shall
               not materially degrade the operation or materially impair the
               performance of the Product, or otherwise make it incompatible
               with Qwest's current network; or

          (c)  if (a) and (b) are commercially impracticable or would cause the
               Products to fail to be Network Compatible, accept return of the
               Product and refund Qwest all amounts paid therefor, including any
               prepaid maintenance and support fees, and pay Qwest any
               additional costs incurred by Qwest in acquiring a comparable
               replacement for the infringing Product. Any refund of amounts
               paid may be reduced based on depreciation of the Product on
               straight line basis over a (***).

     15.4 Supplier shall have no liability in respect of any Infringement Claim
          based on the use of a Product to the extent that such claim (i) is
          based on a use of a Product by Qwest in a manner or for a purpose not
          contemplated by this Agreement; (ii) is based on a use of the Product
          by Qwest in combination with other non-Supplier products where such
          combination is not reasonably contemplated by this Agreement, provided
          the Infringement Claim arises solely from such combination; or (iii)
          is based on a modification of the Product by Qwest where such
          modification has not authorized by Supplier in writing.

     15.5 This Section 15 establishes the entire rights and obligations of the
          Parties for claims of infringement of Intellectual Property Rights.

16.  KNOW HOW AND NEW TECHNOLOGY

     Notwithstanding anything to the contrary contained in this Agreement, each
     Party shall be entitled, without royalty to the other Party, to use,
     disclose and sell any know-how retained in the minds of employees of such
     Party, expertise, techniques, approaches or concepts (the "Know-how")
     developed or acquired in the course of performing under this Agreement. The
     Parties agree that Know-how shall not include any Qwest, Supplier or third
     party (***) and (***) or (***), any (***), or any Confidential Information
     of the other Party. The foregoing shall not be construed as granting a
     license in any Intellectual Property Rights. The Parties recognize that New
     Technology may be developed during the Term. If any New Technology is
     deemed by the Party that created it to be deserving of intellectual
     property protection, then that Party is responsible for taking steps to
     protect any interests it may have in such New Technology and may (***) such
     New Technology during its pursuit of Intellectual Property Rights in the
     same.

17.  WARRANTY

     17.1 Equipment

          (a)  Supplier warrants that Equipment supplied hereunder will be
               Operative and free from defective material and faulty workmanship
               for (***) from

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               the (***) stamped on the Equipment or, if the date of shipment is
               not marked on the Equipment, (***) from the (***) ("Warranty
               Period").

          (b)  The foregoing Equipment warranty shall not apply to the extent
               that (i) the Nonconformity is caused by the Equipment having been
               altered or repaired by any party other than Supplier without
               Supplier's prior, written consent; (ii) the Nonconformity results
               from Qwest's (***) of the Equipment; or (iii) the Equipment
               having been damaged by (***). This foregoing Equipment warranty
               does not apply to items normally consumed in operation, such as,
               but not limited to, lamps and fuses.

          (c)  If a Nonconformity occurs, Qwest shall give Supplier a reasonable
               opportunity to repair or replace such Equipment, as set forth in
               Schedule H, before exercising any other rights or remedies it may
               have under this Agreement. If Supplier does not repair or replace
               such Equipment within the time frames set forth in Schedule H,
               Qwest may demand a refund for the invoiced amount of the affected
               Equipment. In any event, the Commitment shall be reduced by the
               invoiced amount of such Equipment.

          (d)  Supplier shall provide technical support for a Product performed
               by qualified and competent personnel for a period of (***) after
               Acceptance of the Product as set forth in Schedule G.

     17.2 Supplier warrants the Software, but not including embedded software or
          firmware (which is addressed in Section 17.1), will be Operative
          through the (***) after the (***) of the Software, provided that the
          foregoing warranty shall not apply if Qwest has (***) for (***) which
          would (***) of (***) and (***) to (***) such Releases. At Qwest's
          option, Supplier shall provide software maintenance and support after
          the initial Warranty Period pursuant to the terms and conditions of
          the Software Maintenance Agreement, attached hereto as Schedule I.

     17.3 Supplier warrants that the Software, ISUs, Enhancements, Releases and
          Versions and any media used to distribute it does not contain any
          computer instructions, circuitry, routines or other technological
          means ("Harmful Code") whose purpose is to disrupt, damage or
          interfere with Qwest's use of its computer and telecommunications
          facilities for their commercial, test or research and development
          purposes. Supplier shall indemnify Qwest and hold Qwest harmless from
          and against any and all claims, losses, costs, liabilities, damages
          and/or expenses, including reasonable attorneys fees, arising from the
          presence of Harmful Code in or with the Software or contained on media
          delivered by Supplier.

     17.4 Supplier shall perform all Services required under this Agreement
          including customization services, implementation, maintenance services
          and training services in a good and workmanlike manner and shall be
          responsible for the capabilities, limitations and performance of any
          development tools used in providing its Services. With Qwest's prior
          written consent, Supplier may perform

                                      -27-

<PAGE>

           its (***) hereunder through an agent.

     17.5  Supplier warrants during the Warranty Period that the Products
           provided hereunder shall be able to accurately process data
           (including calculating, compiling and sequencing date data) from,
           into and between the twentieth and twenty-first centuries, including
           leap year calculations, and will create, store, process and exchange
           (input and output) information related to or including dates on or
           after January 1, 2000, without error or omissions ("Year 2000
           Compliant").

     17.6  The Warranty Period for any replacement Product provided by Supplier
           under this Agreement shall be the greater of (i) the remaining
           Warranty Period of the replaced Product on the date it went out of
           service; or (ii) an additional Warranty Period of (***) from the
           date of Acceptance of the replacement Product by Qwest.

     17.7  Upon expiration of the applicable Warranty Period for Equipment
           furnished hereunder, repair and replacement service for such
           Equipment shall be available to Qwest from Supplier in accordance
           with Schedule C and (***).

     17.8  The warranty for any third party items used in the Product shall be
           no less than the warranties for the rest of the Product. As of the
           Effective Date, there are not currently any third party items used
           in the Product that have a longer warranty period than the Warranty
           Period. If any third party items used in the Product have a longer
           warranty than granted herein then, to the extent permitted by the
           manufacturer, Supplier shall assign warranties for third party items
           which have a warranty period exceeding the Warranty Period to Qwest.

     17.9  Supplier represents and warrants that as of the Effective Date of
           this Agreement, the Supplier has not received written notice of any
           pending lawsuits, claims, disputes or actions that it reasonably
           considers significant (i) alleging that the Products infringe or
           misappropriate any Intellectual Property Rights, or (ii) adversely
           affecting the Products or Supplier's ability to undertake and
           perform its obligations under this Agreement.

     17.10 During the Warranty Period for a Product, Supplier shall provide
           warranty support services performed by qualified and competent
           personnel as set forth in Schedule H. Supplier shall deliver to Qwest
           and keep current a list of persons and telephone numbers ("Calling
           List") for Qwest to contact in order to obtain answers to questions
           arising, or assistance in solving problems or Nonconformities
           occurring, during Qwest's use of any of the Products. The Calling
           List shall include (i) the first person to contact if a question
           arises or problem occurs, and (ii) the persons in successively
           more responsible or qualified positions to provide the answer or
           assistance desired. If Supplier does not respond promptly to any
           request by Qwest for telephone assistance, then Qwest may attempt
           to contact the next more responsible or qualified person on the
           Calling List until contact is made and a designated person
           responds to the call.

                                      -28-

<PAGE>

     17.11 After Qwest reports a suspected Nonconformity, Supplier shall provide
           a correction or work around or repair part to restore the Product
           (including the entire System) to Operative condition as soon as
           reasonably possible, but in any case in conformance with the
           designated repair times in the Specifications in the applicable
           Schedules to this Agreement.

     17.12 Any Release made available to any of Supplier's customers within the
           Warranty Period for any Product that correct Nonconformities shall be
           provided to Qwest at no additional charge. Such Release shall be in
           compliance with the performance and warranty requirements for any of
           the Products under this Agreement.

     17.13 Supplier warrants that the Products: (i) will meet all applicable
           standards including ANSI , NEBS, ETSI, and ISO Standards; (ii) will
           provide the functionality described in; (iii) will conform to the
           current environmental specifications set forth in the Bellcore New
           Equipment Building Standard; and (iv) will be Network Compatible.

     17.14 THE EXPRESS WARRANTIES IN THIS AGREEMENT ARE IN LIEU OF ANY OTHER
           WARRANTY, WHETHER EXPRESS, IMPLIED OR STATUTORY, WITH RESPECT TO THE
           PRODUCT TO BE SUPPLIED UNDER THIS AGREEMENT. EXCEPT AS EXPRESSLY SET
           FORTH HEREIN, SUPPLIER SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES
           OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-
           INFRINGEMENT OF THIRD PARTY RIGHTS AND THOSE ARISING FROM A COURSE OF
           DEALING OR USAGE OF TRADE. SUPPLIER NEITHER ASSUMES NOR AUTHORIZES
           ANY PERSON TO ASSUME FOR IT ANY OTHER LIABILITY. THE WARRANTIES
           EXPRESSED HEREIN SHALL NOT BE ASSIGNABLE TO ANY OTHER PARTY EXCEPT
           AS SUCH PRODUCTS OR OTHER RIGHTS ARE ASSIGNED OR OTHERWISE
           TRANSFERRED PURSUANT TO THE TERMS AND CONDITIONS OF THIS AGREEMENT.

18.  GENERAL INDEMNITY

     (***) shall indemnify and hold harmless (***) from any claim or damages due
     to the personal injury or death of any individual and against any
     reasonably foreseeable loss, damage, liability, cost or expense (including
     attorneys' fees) which may be incurred on account of any suit, claim,
     judgment, demand, or threat thereof, arising out of or caused by a willful
     or grossly negligent act or omission or an intentional act of misconduct of
     (***), its agents, employees or subcontractors.

19.  LIMITATION OF LIABILITY

     NEITHER PARTY SHALL BE LIABLE TO THE OTHER (OR ANYONE CLAIMING UNDER OR
     THROUGH THE OTHER) FOR ANY SPECIAL, INDIRECT,

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<PAGE>

     CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES ARISING FROM OR RELATED TO
     THIS AGREEMENT, INCLUDING LOST PROFITS OR OTHER ECONOMIC ADVANTAGE, EVEN IF
     THE PARTIES HAVE KNOWLEDGE OF THE POSSIBILITY OF SUCH DAMAGES. PROVIDED,
     HOWEVER, THAT IF THE LAW OF ANY JURISDICTION APPLICABLE TO THIS AGREEMENT
     DOES NOT PERMIT SUCH DAMAGES TO BE COMPLETELY DISCLAIMED, THIS CLAUSE SHALL
     BE INTERPRETED AS NECESSARY TO GIVE THE FULL BENEFIT OF ANY DISCLAIMER OR
     LIMITATION OF SAID DAMAGES AS PERMITTED UNDER SUCH LAW. THE FOREGOING
     LIMITATION SHALL NOT APPLY IN THE EVENT OF LIABILITY ARISING FROM: (I) AN
     INDEMNITY UNDER SECTION 15 ("INFRINGEMENT WARRANTY AND INDEMNITY"), SECTION
     17.3 ("HARMFUL CODE INDEMNITY") OR SECTION 18 ("GENERAL INDEMNITY"); (II) A
     BREACH OF SUPPLIER'S CONFIDENTIALITY OBLIGATIONS IN SECTION 20
     ("CONFIDENTIALITY"); OR (III) THE GROSS NEGLIGENCE OR WILLFUL MISCONDUCT OF
     A PARTY, ITS AGENTS, ITS EMPLOYEES OR NOMINEES ARISING OUT OF OR IN
     CONNECTION WITH THIS AGREEMENT.

20.  CONFIDENTIALITY

     20.1 This Agreement and all information marked as confidential and
          disclosed by either Party (the "Disclosing Party") to the other (the
          "Recipient"), or information of a confidential nature which is
          disclosed orally and for which a written summary is provided to the
          other Party (***) of (***) (provided that no written summary shall be
          required for confidential information of a (***) which is disclosed
          orally between the Parties' (***) which such personnel should
          reasonably understand to be confidential) shall be "Confidential
          Information". Confidential Information constitutes a valuable asset of
          and is proprietary to the Party disclosing or originally possessing
          it. Supplier acknowledges that Qwest keeps its customers' records
          strictly confidential. Supplier and its Representatives shall keep
          strictly confidential any Qwest customer records, whether or not they
          are marked as confidential. Neither Party shall willfully disclose
          Confidential Information or knowingly permit its Representatives to
          disclose Confidential Information to any person other than persons,
          including its Representatives, having a specific need to know in
          performance of the work. Each Party shall take reasonable care to
          insure fulfillment of this obligation, including instructing its
          Representatives not to sell, lease, assign, transfer, use outside
          their scope of employment or reveal any Confidential Information or
          Qwest customer records without prior written consent of the other
          Party. Recipient shall use the Disclosing Party's Confidential
          Information only for purposes of exercising its rights or fulfilling
          its obligations under this Agreement and shall disclose Confidential
          Information only to those (***) and (***) who have a need to know
          Confidential Information for purposes of this Agreement. Recipient
          shall return or destroy the Confidential Information (including all
          copies) when no longer needed or when requested to do so by the
          Disclosing Party Each Recipient shall take reasonable care to insure
          fulfillment of this obligation, including instructing its
          Representatives not to sell, lease, assign, transfer, use outside
          their scope of

                                      -30-

<PAGE>

          employment or reveal any Confidential Information, including customer
          records, without prior written consent of the Disclosing Party.

     20.2 If a subpoena or other legal process in any way concerning
          Confidential Information is served upon Recipient, the Recipient shall
          notify the Disclosing Party promptly, and the Recipient shall
          cooperate with the Disclosing Party, at the latter's expense, in any
          lawful effort to contest the validity of such subpoena or other legal
          process.

     20.3 Notwithstanding the foregoing, if either Party is required by law or
          governmental regulation by compulsory judicial or administrative
          process to make any disclosure, including those made in any
          registration statement, report or other document filed with the U.S.
          Securities and Exchange Commission or any other governmental agency,
          such disclosure will not be deemed to violate the terms of this
          Section, provided the Recipient promptly notifies the Disclosing Party
          of such disclosure and (***) to (***) a (***) or to (***) to protect
          the intent of the Parties to restrict disclosure of all Confidential
          Information and the terms of this Agreement, including seeking
          confidential treatment of all such information in administrative
          filings. In addition, if the Recipient's efforts to seek confidential
          treatment or other protective measures for such information are not
          successful, such party may only make such disclosure after (i)
          providing written notice of the same to the disclosing party and (ii)
          (***) the Disclosing Party to take measures to secure the confidential
          treatment of the information.

     20.4 Qwest may disclose the Software to its contractors who have a need to
          know for purposes of exercising rights related to this Agreement,
          provided that such contractors have agreed in writing to observe in
          substance the obligations of Qwest set forth in this Section.

     20.5 The obligations of confidentiality in this Section shall not apply to
          any information which a Party has in its possession when disclosed to
          it by the Disclosing Party, information which a Party independently
          develops, information which is or becomes known to the public other
          than by breach of this Agreement or information rightfully received by
          a Party from a third party without the obligation of confidentiality.

     20.6 A Party shall not use the other Party's name or logo or refer to the
          other Party directly or indirectly in any advertising, sales
          presentation to any other person, news release, release to any
          professional or trade publication or for any other similar purpose
          without the other Party's prior written approval, provided that (i)
          Supplier may use Qwest's name or logo, or both, in a list of
          Supplier's customers, if such use does not imply endorsement and (ii)
          Qwest may use Supplier's name or logo, or both, in a list of Qwest's
          suppliers.

21.  TERMINATION, SURVIVAL

     21.1 Bankruptcy. Either Party may terminate the Agreement if the other
          Party shall:

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<PAGE>

          (a) file a voluntary petition under any bankruptcy or insolvency law,
          or file a voluntary petition under the reorganization or arrangement
          provisions of any law of any jurisdiction, or have proceedings under
          any such laws instituted against it which are not terminated within
          (***) of such commencement; (b) become insolvent, bankrupt, or admit
          in writing of its inability to pay all debts as they mature or make a
          general assignment for the benefit of or enter into any composition or
          arrangement with creditors; (c) authorize, apply for, or consent to
          the appointment of a receiver, trustee, or liquidator of all or a
          substantial part of its assets, or has proceedings seeking such
          appointment commenced against it which are not terminated within (***)
          of such commencement.

     21.2 Intentionally Omitted.

     21.3 Purchase Commitments of Acquired Entities. If, during the Term of this
          Agreement, Qwest or any of its Affiliates acquire a controlling
          interest in or substantially all the assets of an entity ("Acquired
          Entity") that has an agreement with Supplier for products, services
          and/or software with remaining purchase commitments, Qwest may satisfy
          such purchase commitments under the original agreement between the
          Acquired Entity and Supplier or this Agreement provided that any
          amounts purchased by Qwest or its Affiliates that apply to the
          satisfaction of a purchase commitment in another agreement (***) the
          Commitment.

     21.4 Change of Control. If, during the Term of this Agreement, a "Change of
          Control" occurs with respect to either Qwest Communications
          International Inc. ("QCII") or Supplier, either Party shall have the
          right to terminate this Agreement or any part thereof upon (***)
          written notice, and Qwest (or any successor) shall have no further
          obligations under this Agreement except for (i) payment due for any
          Products retained by Qwest for which Supplier has not received
          payment; (ii) payment due for any Services completed by Supplier for
          which Supplier has not received payment and (iii) payment of the
          difference between the (***) (as such amount exists as of the date of
          termination) and the amount of payments received by Supplier. A
          "Change of Control", with respect to QCII or Supplier, shall occur if,
          following the consummation of any transaction (including two or more
          related transactions), (A) the persons who are shareholders of QCII or
          Supplier, as applicable, immediately prior to such transaction own
          less than (***) of the outstanding shares of common stock of QCII or
          Supplier, as applicable, following the transaction, or (B) the person
          who are members of the board of directors of QCII or Supplier, as
          applicable, immediately prior to such transaction constitute less than
          a majority of the board of directors of QCII or Supplier, as
          applicable, following the transaction.

     21.5 Termination for Cause. Until the satisfaction or termination of
          Qwest's obligations to purchase Products or Services under Section
          2.2(a), prior to any Party's termination or suspension for cause, the
          Parties shall use the dispute resolution procedure set forth in
          Section 25. Qwest's obligations (if any) with respect to the
          Commitment shall be suspended until the completion of the dispute

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<PAGE>

          resolution procedure set forth in Section 25. After the satisfaction
          or termination of Qwest's obligations to purchase Products or Services
          under Section 2.2(a), either Party may terminate or suspend this
          Agreement upon material breach of this Agreement by the other after
          providing written notice to the other Party describing specific
          obligations the other Party has materially breached. Upon the
          breaching Party's receipt of the other Party's notice, the breaching
          Party shall have (***) to cure the breach. If the breaching Party is
          unable to cure such breach within such (***) period, the other Party
          may terminate or suspend this Agreement in whole or part; provided
          that any such termination shall (***).

     21.6 Survival. All provisions of this Agreement which by their nature must
          survive termination in order to achieve the fundamental purposes of
          this Agreement shall survive any termination of this Agreement,
          including the following Sections: 2 (Scope), 3 (Supplier Obligations),
          9 (Payment Terms), 13 (Software), 15 (Infringement Warranty and
          Indemnity), 16 (Know-How and New Technology), 17 (Warranty), 18
          (General Indemnity), 19 (Limitation of Liability), 20
          (Confidentiality), 21 (Termination), 31 (Severability) and 33 (Choice
          of Law).

22.  FORCE MAJEURE

     22.1 Except to the extent of normal inclement weather, which shall be built
          into any schedule, neither Party will be liable for delays in
          performance or a failure to perform hereunder due to causes of acts of
          God, acts of any government, wars, riots, fires, floods, accidents,
          strikes, or embargoes. In the event of such delays, the schedules
          shall be extended for such additional period of time as is determined
          to be equitable by the Parties. With respect to labor difficulties, a
          Party shall not be obligated to accede to any demands being made by
          employees or other personnel.

          If any performance date for any Product or Service under this
          Agreement is postponed or extended pursuant to this Section for longer
          than (***), Qwest may, at its option, by written notice given during
          the postponement or extension, terminate Supplier right to render
          further performance for such affected Products or Services after the
          effective date of termination without liability for that termination.

23.  JOINT WORK PRODUCT

     The Parties, who have both been represented by legal counsel, have jointly
     participated in negotiating and drafting this Agreement. In the event an
     ambiguity or question of intent or interpretation arises, this Agreement
     shall be construed as if jointly drafted by the Parties and no presumption,
     inference or burden of proof shall arise favoring or disfavoring a Party by
     virtue of authorship of any or all of the Agreement provisions.

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<PAGE>

24.  ASSIGNMENT

     24.1 Subject to Section 13.9 ("Transfer Of License"), except as provided
          below, neither Party shall assign any of its rights nor delegate any
          of its obligations under this Agreement without the prior express
          written consent of the other Party. Any prohibited assignment or
          delegation shall be null and void.

     24.2 Qwest may assign this Agreement without prior approval to any company
          or Entity controlling, controlled by or under common Control of Qwest
          or its Affiliates which assignee is (***) to (***) obligations
          hereunder. In addition and notwithstanding the foregoing, Qwest may
          assign this Agreement without the approval of Supplier to any
          successor in interest resulting from a merger, acquisition,
          reorganization or transfer of all or substantially all of Qwest's
          business with or to a successor.

25.  DISPUTES

     25.1 The Parties shall work together and attempt to resolve by good faith
          and diligent negotiation any dispute, controversy or claim between
          them arising out of or relating to any contract document, or the
          breach, termination or invalidity thereof (a "Dispute"). The Parties
          shall work together in good faith to informally resolve the dispute
          internally by escalating it as necessary to progressively higher
          levels of management. Following such internal process, if the dispute
          has not been resolved within (***) after formal initiation of the
          dispute process, either Party may initiate arbitration as provided for
          below.

     25.2 Following the procedure discussed in Section 25.1 above, either Party
          may initiate binding arbitration proceedings to resolve any Dispute.
          Such arbitration shall be conducted in accordance with the
          then-current Commercial Arbitration Rules of the American Arbitration
          Association ("AAA Rules") by (***). Within (***) of a notice of
          arbitration, each Party shall appoint (***). Once the (***) arbitrator
          has (***) appointment, the arbitrators shall be deemed a panel
          (hereinafter, the "Impanelment").

     25.3 The Federal Arbitration Act, 9 U.S.C. Secs. 1-16 shall govern the
          arbitrability of all Disputes. The arbitration proceedings shall be
          English and the place of arbitration shall be Denver, Colorado. The
          construction and interpretation of this Agreement shall be governed by
          the laws of the State of Colorado without reference to its conflicts
          of law rules, or rules of statutory arbitration. Arbitral awards under
          this Section 25 shall be final and binding, and shall be enforceable
          in any court having jurisdiction. The arbitration shall (***) of the
          date (***).

     25.4 (a) Nothing in this Section will prevent any Party from applying to
          any court of competent jurisdiction for preliminary or interim relief
          in a judicial proceeding if such relief from a court is necessary to
          preserve the status quo pending resolution or to prevent serious and
          irreparable injury to that Party pending resolution of the Dispute
          through arbitration, or to compel arbitration in

                                      -34-

<PAGE>

          accordance with this Section.

          (b) For purposes of this Section each Party consents to the exclusive
          jurisdiction and venue of the courts of the state and federal courts
          of Denver County in the State of Colorado.

          (c) The prevailing Party in an arbitration or litigation shall be
          entitled to recover from the other Party reasonable attorneys' fees
          and other costs of such arbitration.

          (d) The Parties agree to keep all disputes arising under this
          Agreement confidential, except as necessary in connection with a
          judicial challenge to or enforcement of an award or unless otherwise
          required by law or judicial decision. The arbitrator may issue orders
          to protect the confidentiality of proprietary information, trade
          secrets or other sensitive information. In the event of a conflict
          between this Section and Section 20.3, this Section shall control.

26.  RELATIONSHIP OF THE PARTIES

     26.1 The Parties are independent contractors. Nothing in this Agreement or
          in the activities contemplated by the Parties pursuant to this
          Agreement shall be deemed to create an agency, partnership, employment
          or joint venture relationship between the Parties. Each Party shall be
          deemed to be acting solely on its own behalf and, except as expressly
          stated, has no authority to pledge the credit of, or incur obligations
          or perform any acts or make any statements on behalf of, the other
          Party. Neither Party shall represent to any person or permit any
          person to act upon the belief that it has any such authority from the
          other Party. Neither Party's Representatives shall be deemed
          Representatives of the other Party for any purpose.

     26.2 Supplier represents and warrants that Supplier qualifies as an
          independent contractor under the provisions of the Internal Revenue
          Code's common law rules enacted as part of Section 1706 of the 1986
          Tax Reform Act, and as such Supplier is filing all required forms and
          necessary payments appropriate to Supplier's tax status. In the event
          Supplier's independent status is denied or changed and Supplier is
          declared to have "common law" status with respect to work performed
          for Qwest, Supplier agrees to indemnify, defend and hold Qwest and its
          Affiliates harmless from all costs, including legal fees, which Qwest
          may incur as a result of such change in status.

27.  AMENDMENT

     No changes, amendments or modifications of any of the terms or conditions
     of this Agreement shall be valid unless made by an instrument in writing
     signed by both Parties. Subject to Section 40, none of the terms or
     conditions of this Agreement shall be modified, amended or altered by or
     through a Purchase Order. Each Party shall designate by written notice to
     the other Party the individual who has the authority to amend this

                                      -35-

<PAGE>

     Agreement.

28.  COMPLIANCE WITH LAWS

     The Parties shall comply with all applicable federal, state and local laws,
     regulations and ordinances as they relate to this Agreement and the
     Software, including the regulations of the United States Government, the
     provisions of Executive Order 11246 (as amended) of the President of the
     United States on Equal Employment Opportunity and the rules and regulations
     issued pursuant thereto, which are incorporated in this Agreement by this
     reference as if set forth in full. Supplier and the Products shall comply
     with all rulings, orders and determinations by the Federal Communications
     Commission and any other governmental body relating to the provision of the
     Products or Services under the (***).

29.  CONSTRUCTION/HEADINGS/REPRESENTATION BY COUNSEL

     All Schedules and attachments, as supplemented and amended, to this
     Agreement or to be attached to this Agreement are made a part of it as if
     fully included in the text of this Agreement. References to any law,
     legislative act, rule or regulation shall mean references to such law,
     legislative act, rule or regulation in changed or supplemented form or to a
     newly adopted law, legislative act, rule or regulation replacing a previous
     law, legislative act, rule or regulation. All defined terms used in the
     Agreement shall have the same meanings ascribed to them when used in the
     Schedules, attachments and Purchase Orders, unless otherwise specified
     therein. The terms "including" or "includes" shall always be construed as
     meaning respectively "including, without limitation," or "includes, without
     limitation,". The title, captions and headings used in this Agreement are
     strictly for convenience of reference only and shall not be used in the
     interpretation, construction, amplification or limitation of any of the
     content of this Agreement. Whenever the singular is used herein, the same
     shall include the plural where appropriate, and when the plural is used
     herein, the same shall include the singular where appropriate. Each Party
     represents that it has received independent legal advice from attorneys of
     its own choice with respect to this Agreement and the advisability of
     entering into this Agreement. Each Party represents that it has carefully
     read and reviewed this Agreement and the contents are understood by such
     Party. The Parties acknowledge that they have participated jointly in the
     negotiation and drafting of this Agreement. In the event an ambiguity or
     question of intent or interpretation arises, this Agreement shall be
     construed as of drafted jointly by the Parties and no presumption or burden
     of proof shall arise favoring or disfavoring any Party by virtue of any
     authorship of any provisions of this Agreement. Each Party waives any claim
     that this Agreement or any term thereof was the result of a mistake in law
     or in fact.

30.  NO WAIVER

     30.1 No delay, failure or waiver of either Party's exercise or partial
     exercise of any right or remedy under this Agreement shall operate to
     limit, impair, preclude, cancel, waive or otherwise affect such right or
     remedy.

     30.2 Except with respect to the Existing Products, the Parties release and
     waive any and

                                      -36-

<PAGE>

          all claims either Party had, has or may have against the other Party
          concerning or arising under the Existing Agreement or the events
          leading up to the execution of this Agreement, provided that the
          waiver by Qwest herein shall be null and void and of no force or
          effect if Supplier commences or has commenced against it a case or
          proceeding under Title 11 of the United States Code (the "Bankruptcy
          Code") within (***) period immediately following the Effective Date.

31.  SEVERABILITY

     If any provision of this Agreement is held invalid, illegal or
     unenforceable, the validity, legality or enforceability of the remaining
     provisions shall in no way be affected or impaired thereby.

32.  COUNTERPARTS

     This Agreement may be executed by the Parties in one or more counterparts,
     and each of which when so executed shall be an original, but all such
     counterparts shall constitute one and the same instrument.

33.  CHOICE OF LAW

     This Agreement is entered into in and shall be governed by the internal
     laws and of the (***) without regard to the principles of choice of law
     thereof. The Products shall be deemed to be goods within the meaning of the
     Uniform Commercial Code. Each Party agrees to waive its right to a jury
     trial in any action commenced hereunder.

34.  REMEDIES

     The remedies under this Agreement shall be cumulative and not exclusive,
     and the election of one remedy shall not preclude pursuit of other remedies
     generally available under the governing law.

35.  IMMIGRATION REFORM AND CONTROL ACT

     Supplier warrants, represents, covenants and agrees that it will not assign
     to perform any efforts under this Agreement any individual who is an
     unauthorized alien under the Immigration Reform and Control Act of 1986 or
     its implementing regulations. Supplier shall indemnify and hold harmless
     Qwest, its parent, subsidiaries and affiliated companies from and against
     any and all liabilities, damages, losses, claims or expenses (including
     attorneys' fees) arising out of any breach by Supplier of this section. In
     the event any Supplier Personnel or contractor working under this
     Agreement, or other individuals providing work to Qwest on behalf of
     Supplier under this Agreement, are discovered to be unauthorized aliens,
     Supplier will immediately remove such individuals from performing work and
     replace such individuals with individuals who are not unauthorized aliens.

                                      -37-

<PAGE>

36.  IMPORT/EXPORT

     The Parties hereby represent and warrant that no commodities or technical
     data (including computer software) or other technology agreed to be sold or
     otherwise transferred under this Agreement will be knowingly sold, leased,
     delivered, transferred or conveyed to any person in any country except in
     strict compliance with all export and import laws, regulations, executive
     orders or decrees of the United States Government or any agencies thereof
     and the government of any other country (or any agencies thereof) with
     jurisdiction over such transaction. Qwest shall, solely at its own expense,
     obtain all required export and import licenses, permits, approval,
     certificates and verifications before shipment of any Products.

37.  PUBLICITY

     Neither Party shall, without the prior written approval of the other Party,
     publicly disclose in any press release, filing (including any SEC filing),
     brochure or document any information pertaining to this Agreement, provided
     that in the event of a conflict between this Section and (***) shall
     control.

38.  NOTICES

     38.1 In addition to those instances identified throughout this Agreement
          that require notices to particular individuals via particular means
          for particular purposes, all notices, requests, demands, or consents
          required or permitted hereunder, other than routine operational
          communication, shall be in writing and shall be delivered, sent by
          facsimile transmission or overnight courier, or sent by certified or
          registered mail to the respective Party at the addresses set forth
          below or at such other address as shall have been given to the other
          Party in writing for the purposes of this Section and Agreement. Such
          notices and other communications shall be deemed effective upon the
          earliest to occur of (i) actual delivery of confirmed facsimile or
          electronic transmission; (ii) three (3) postal delivery days after the
          date of mailing by certified or registered mail, return receipt
          requested, postage prepaid; (iii) one (1) business day after dispatch
          via an express courier with a reliable system for tracking delivery;
          (iv) actual delivery by hand.

          (a)  If to Supplier:

          Tellium, Inc.
          2 Crescent Place
          Oceanport, NJ 07757
          Attn: (***), Vice President (***)

          (b)  If to Qwest:

          Qwest Communications Corporation
          555 17th Street
          Denver, Colorado 80202

                                      -38-

<PAGE>

          Attention: Vice President, Procurement

          With a copy to:

          Qwest Communications Corporation
          1801 California Street
          Denver, Colorado 80202

          Attention: General Counsel

     38.2 A Party may from time to time change its address for notification
          purposes by giving the other Party prior written notice of the new
          address and the date upon which it will become effective, in
          accordance with the manner set forth in this Section.

39.  INSURANCE REQUIREMENTS

     39.1 During the Term, Supplier and any of its subcontractors shall maintain
          insurance of the kinds and in the amounts specified below with
          insurers of recognized responsibility, whose policies are valid in the
          states where the work is being performed.

     39.2 In accordance with the above, Supplier and any subcontractors shall
          maintain the following insurance coverages:

          (a)  Comprehensive general liability insurance.

          Commercial general liability insurance with a combined single
               limit for bodily injury and property damage of (***) each
               occurrence and General and Products Liability aggregates of (***)
               each, covering all operations and/or work performed under this
               Agreement.

          (b)  Business automobile liability insurance.

          Business automobile liability with a combined single limit for
               bodily injury and property damage of (***) each occurrence to
               include coverage for all owned, non-owned, and hired vehicles.

          (c)  Worker's compensation and employers' liability insurance.

          Worker's compensation insurance complying with the law of the
               State or States of operation, whether or not such coverage is
               required by law, and employer's liability insurance with limits
               of (***) each employee and (***) disease policy limit.

     39.3 Certificates of such insurance shall be submitted to Qwest naming
          Qwest as an additional insured prior to the start of any work
          associated with this Agreement. These certificates shall provide that
          there will be no termination or non-renewal of

                                      -39-

<PAGE>

          such coverage without thirty (30) days prior written notice to
          Qwest, in which case Supplier shall still maintain insurance
          and which may require certificate, and in no case where this
          Agreement is still in effect.

     39.4 Supplier shall require each subcontractor to provide and
          maintain at all times during the term of this Agreement
          insurance equivalent to that which is required of Supplier.
          Any subcontractor and any subcontractors' carriers shall waive
          all right to recovery against Qwest for any injuries to
          persons or damage to property in the execution of work
          performed under this Agreement, exclusive of such liability
          resulting from Qwest's negligence or intentional misconduct
          and within the limits of any applicable laws.

     39.5 Should Supplier at any time neglect or refuse to provide the
          insurance required, or should such insurance be canceled or
          non-renewed, Qwest shall have the right to purchase such
          insurance, and the cost shall be billed to Supplier. In
          addition, should Supplier at any time neglect or refuse to pay
          the necessary premium, Qwest shall have the right to deduct
          this amount from monies due Supplier.

40.  ORDER OF PRECEDENCE

     In the event of an inconsistency between the terms and conditions of
     the Agreement and the Schedules attached hereto, the Agreement shall
     control. Unless expressly stated otherwise therein, in the event of an
     inconsistency between the terms and conditions of this Agreement
     (including its Schedules) and a Purchase Order, this Agreement shall
     control.

41.  ENTIRE AGREEMENT

     41.1 This Agreement embodies the final, full and exclusive statement
          of the business relationship between Qwest and Supplier except
          for the (a) Warrants certificates as follows: "A" Warrants to
          purchase 1,000,000 shares of Tellium Common Stock, dated as of
          September 18, 2000; "B" Warrants to purchase 1,000,000 shares of
          Tellium Common Stock, dated as of September 18, 2000; and "C"
          Warrants to purchase 750,000 shares of Tellium Common Stock,
          dated as of April 10, 2001; (b) Warrant Purchase Agreement, dated
          as of September 18, 2000; (c) Supplemental Stockholders'
          Agreement, dated as of September 18, 2000; (d) Supplemental
          Stockholders' Agreement, dated as of April 10, 2001; and (e)
          Agreement of Termination and Cancellation of "B" Warrants and "C"
          Warrants dated as of December 14, 2001. Neither Party shall be
          bound by or liable to the other Party for any representation,
          promise or inducement made by any agent or person in their employ
          relating to subject matter which is not set forth in this
          Agreement. This Agreement amends, restates and replaces, in its
          entirety, the Existing Agreement.

     41.2 Subject to Section 40, the preprinted terms and conditions on
          all forms and other purported agreements exchanged between the
          Parties software shrink wrap

                                      -40-

<PAGE>

          licenses and invoices, shall be null and void unless otherwise agreed
          to both Parties in a signed agreement.

                             Signature Page Follows

                                      -41-

<PAGE>

                                 Signature Page

IN WITNESS WHEREOF, the Parties hereto have caused this Amended and Restated
Procurement Agreement to be duly executed as of the Effective Date, such Parties
acting by their officers, being thereunto duly authorized.

Tellium, Inc.                              Qwest Communications Corporation

By: /s/                                    By: /s/
   -----------------------------               ----------------------------

Title:                                     Title:
       -------------------------                  -------------------------

Date:                                      Date:
      --------------------------                 --------------------------

                                      -42-

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