Document:

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                                                                  Exhibit 10.35

                  SUBSCRIPTION AND RECAPITALIZATION AGREEMENT

          This SUBSCRIPTION AND RECAPITALIZATION AGREEMENT (this "AGREEMENT") is
entered into as of June 22, 2000 among Genuity Inc., a Delaware corporation
("GENUITY"), GTE Corporation, a New York corporation ("GTE"), and Contel Federal
Systems, Inc., a Delaware corporation and wholly owned subsidiary of GTE
("CFS").

                               R E C I T A L S :

          WHEREAS, GTE and CFS collectively own all of the outstanding shares of
common stock, par value $1.00 per share (the "OUTSTANDING SHARES"), of Genuity;

          WHEREAS, Genuity has filed with the Securities and Exchange Commission
a Registration Statement on Form S-1 (as amended and at the time it becomes
effective under the Securities Act of 1933, the "REGISTRATION STATEMENT")
pursuant to which it intends to offer shares of Class A Common Stock, par value
$0.01 per share (the "CLASS A COMMON STOCK"), to the public (the "INITIAL PUBLIC
OFFERING");

          WHEREAS, prior to the consummation of the Initial Public Offering, GTE
and CFS desire to reconstitute the capital structure of Genuity by (i) causing
Genuity to amend and restate its certificate of incorporation (as so amended and
restated, the "AMENDED AND RESTATED CERTIFICATE OF INCORPORATION") to authorize
three classes of common stock, (1) Class A Common Stock, (2) Class B Common
Stock, par value $0.01 per share (the "CLASS B COMMON STOCK"), and (3) Class C
Common Stock, par value $0.01 per share (the "CLASS C COMMON STOCK", and
collectively with the Class A Common Stock and the Class B Common Stock, the
"COMMON STOCK") and (ii) exchanging all of the Outstanding Shares for an
aggregate of 18,256,000 shares of Class B Common Stock (the "INITIALLY
OUTSTANDING B SHARES");

          WHEREAS, the parties intend the exchange of the Outstanding Shares for
the Initially Outstanding B Shares pursuant to this Agreement to constitute a
tax-free reorganization within the meaning of Section 368(a)(1)(E) of the
Internal Revenue Code of 1986, as amended (the "CODE"); and

          WHEREAS, the parties desire to make the other agreements set forth
herein.

          NOW THEREFORE, in consideration of the premises and the mutual
representations, warranties, covenants, agreements and conditions herein
contained, and intending to be legally bound, the parties hereto agree as
follows:

                                   ARTICLE I
                                STOCK ISSUANCE

SECTION 1.1  RECAPITALIZATION.  Simultaneously with the effectiveness of the
Amended and Restated Certificate of Incorporation, GTE and CFS shall exchange
the Outstanding Shares for the Initially Outstanding B Shares.
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SECTION 1.2  CLOSING.  The closing of the issuance of the Initially Outstanding
Shares shall occur upon the effectiveness of the Amended and Restated
Certificate of Incorporation (the "CLOSING DATE").

SECTION 1.3  REPRESENTATIONS AND WARRANTIES OF GENUITY.  Genuity represents and
warrants to GTE and CFS that each of the representations and warranties made by
Genuity in Article II hereof will be true and correct on the Closing Date.

SECTION 1.4  REPRESENTATIONS AND WARRANTIES OF GTE AND CFS.  GTE represents and
warrants to Genuity that each of the representations and warranties made by GTE
in Article II hereof will be true and correct on the Closing Date.  CFS
represents and warrants to Genuity that each of the representations and
warranties made by CFS in Article II hereof will be true and correct on the
Closing Date.

                                  ARTICLE II
                         REPRESENTATIONS AND WARRANTIES

SECTION 2.1  REPRESENTATIONS AND WARRANTIES OF GENUITY.  Genuity represents,
warrants and agrees as follows:

(a)  Organization and Related Matters.  Genuity is a corporation duly organized,
     validly existing and in good standing under the laws of the jurisdiction of
     its organization.  Genuity has the necessary corporate power and authority
     to execute, deliver and perform this Agreement.

(b)  Authorization; No Conflict.  The execution, delivery and performance of
     this Agreement by Genuity has been duly and validly authorized by all
     necessary corporate action on the part of Genuity.  This Agreement
     constitutes the legally valid and binding obligation of Genuity,
     enforceable against Genuity in accordance with its terms except as may be
     limited by bankruptcy, insolvency, reorganization, moratorium and other
     similar laws and equitable principles relating to or limiting creditors'
     rights generally.  The execution, delivery and performance of this
     Agreement by Genuity will not violate or conflict with any judgment,
     decree, order, statute, rule or regulation applicable to Genuity or result
     in any violation of the certificate of incorporation or bylaws of Genuity.

(c)  Validity.  On the Closing Date, the Initially Outstanding B Shares will
     have been duly authorized by all necessary corporate action on the part of
     Genuity and will be validly issued, fully paid and non-assessable.

(d)  Securities Act Matters.  The offer and sale of the Initially Outstanding B
     Shares hereunder is exempt from the registration and prospectus delivery
     requirements of the Securities Act of 1933, as amended, and the rules and
     regulations thereunder (the "SECURITIES ACT").  Each Initially Outstanding
     B Share shall have a legend setting forth the restrictions on
     transferability and sale set forth in Section 6.3 hereof for at least so
     long as such restrictions apply.  The representations of Genuity in this
     Section 2.1(d) are based upon and subject to the accuracy of GTE's
     representations contained in Section 2.2(c) hereof and CFS's
     representations contained in Section 2.3(c) hereof.

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SECTION 2.2  REPRESENTATIONS AND WARRANTIES OF GTE.  GTE represents, warrants
and agrees as follows:

(a)  Organization and Related Matters.  GTE is a corporation duly organized,
     validly existing and in good standing under the laws of the jurisdiction of
     its organization.  GTE has the necessary corporate power and authority to
     execute, deliver and perform this Agreement.

(b)  Authorization; No Conflict.  The execution, delivery and performance of
     this Agreement by GTE has been duly and validly authorized by all necessary
     corporate action on the part of GTE.  This Agreement constitutes the
     legally valid and binding obligation of GTE, enforceable against GTE in
     accordance with its terms except as may be limited by bankruptcy,
     insolvency, reorganization, moratorium and other similar laws and equitable
     principles relating to or limiting creditors' rights generally.  The
     execution, delivery and performance of this Agreement by GTE will not
     violate or conflict with any judgment, decree, order, statute, rule or
     regulation applicable to GTE or result in any violation of the certificate
     of incorporation or bylaws of GTE.

(c)  Investment Representation.  GTE acknowledges that the Initially Outstanding
     B Shares will not be registered under the Securities Act.  GTE is an
     "accredited investor" as defined under the Securities Act and possesses
     such knowledge and experience in financial and business matters that it is
     capable of evaluating the merits and risks of the Initially Outstanding B
     Shares.  GTE is acquiring the Initially Outstanding B Shares from Genuity
     for its own account, for investment purposes only and not with a view to
     the distribution thereof.  GTE agrees that the Initially Outstanding B
     Shares will not be sold, transferred, offered for sale, pledged,
     hypothecated or otherwise disposed of without registration under the
     Securities Act, except pursuant to a valid exemption from registration
     under the Securities Act.

(d)  Nature or Scope of Business.  GTE acknowledges and agrees that, for the
     purposes of paragraph D.4(a)(v) of the Fourth Article of the Amended and
     Restated Certificate of Incorporation, the phrase "nature or scope of the
     business of the Corporation" means any business or business plan described
     in the Registration Statement.

SECTION 2.3  REPRESENTATIONS AND WARRANTIES OF CFS.  CFS represents, warrants
and agrees as follows:

(a)  Organization and Related Matters.  CFS is a corporation duly organized,
     validly existing and in good standing under the laws of the jurisdiction of
     its organization.  CFS has the necessary corporate power and authority to
     execute, deliver and perform this Agreement.

(b)  Authorization; No Conflict.  The execution, delivery and performance of
     this Agreement by CFS has been duly and validly authorized by all necessary
     corporate action on the part of CFS.  This Agreement constitutes the
     legally valid and binding obligation of CFS, enforceable against CFS in
     accordance with its terms except as may be limited by bankruptcy,
     insolvency, reorganization, moratorium and other similar laws and equitable
     principles relating to or limiting creditors' rights generally.  The
     execution, delivery and performance of this Agreement by CFS will not
     violate or conflict with any judgment, decree, order, statute, rule or

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     regulation applicable to CFS or result in any violation of the certificate
     of incorporation or bylaws of CFS.

(c)  Investment Representation.  CFS acknowledges that the Initially Outstanding
     B Shares will not be registered under the Securities Act.  CFS is an
     "accredited investor" as defined under the Securities Act and possesses
     such knowledge and experience in financial and business matters that it is
     capable of evaluating the merits and risks of the Initially Outstanding B
     Shares.  CFS is acquiring the Initially Outstanding B Shares from Genuity
     for its own account, for investment purposes only and not with a view to
     the distribution thereof.  CFS agrees that the Initially Outstanding B
     Shares will not be sold, transferred, offered for sale, pledged,
     hypothecated or otherwise disposed of without registration under the
     Securities Act, except pursuant to a valid exemption from registration
     under the Securities Act.

(d)  Nature or Scope of Business.  CFS acknowledges and agrees that, for the
     purposes of paragraph D.4(a)(v) of the Fourth Article of the Amended and
     Restated Certificate of Incorporation, the phrase "nature or scope of the
     business of the Corporation" means any business or business plan described
     in the Registration Statement.

                                  ARTICLE III
                                 CONSENT RIGHTS

SECTION 3.1  CLASS B COMMON STOCK CONSENT RIGHTS.

(a)  In addition to any other rights provided by law and subject to Section 3.2
     below, from and after the effectiveness of the Amended and Restated
     Certificate of Incorporation under the DGCL, the consent of GTE or its
     assignee pursuant to Section 3.3 below shall be required before Genuity:

     (i) Makes any acquisition (or series of related acquisitions) for
     consideration that exceeds 20% of Genuity's market capitalization
     (determined by multiplying the closing price of the Class A Common Stock on
     the date of determination by the number of then outstanding shares of
     Common Stock on an As Converted Basis (as defined in Section 6.15 hereof))
     at the time of such acquisition or, if earlier, of Genuity's entering into
     an acquisition agreement relating thereto (or, in the case of a series of
     related acquisitions, at either such time with respect to the first
     acquisition in such series), it being understood that if consent is
     obtained by Genuity upon entering into an acquisition agreement no further
     consent shall be required for the consummation of such acquisition
     substantially on the terms of the acquisition agreement as in effect on the
     date consented to;

     (ii) Makes an acquisition for consideration that exceeds $100 million or
     enters into a joint venture in which Genuity's investment exceeds $100
     million, in each case that is not closely related to Genuity's business;

     (iii) Makes any disposition (or series of related dispositions) for
     consideration that exceeds 20% of Genuity's market capitalization
     (determined by multiplying the closing price of the Class A Common Stock on
     the date of determination by the number of then outstanding shares of
     Common Stock on an As Converted Basis) at the time of such disposition or,
     if earlier, of Genuity's entering into a disposition agreement relating
     thereto (or,

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     in the case of a series of related dispositions, at either such time with
     respect to the first disposition in such series), it being understood that
     if consent is obtained upon entering into a disposition agreement no
     further consent shall be required for the consummation of such disposition
     substantially on the terms of the disposition agreement as in effect on the
     date consented to;

     (iv) Incurs indebtedness (including capital leases, guarantees of
     indebtedness of others, letters of credit and indebtedness acquired in
     connection with any acquisition, but excluding trade accounts payable) (1)
     in any calendar year that exceeds $3.85 billion, net of any indebtedness
     that is repaid during the same calendar year or (2) at any time, if
     immediately after the incurrence thereof, Genuity's indebtedness would
     exceed $11 billion;

     (v) Enters into any agreement or arrangement that (1) binds or purports to
     bind, or following conversion, would bind or purport to bind, GTE or any of
     its Affiliates (as defined in Section 6.15 hereof) or (2) contains
     provisions that trigger a default or require a material payment when GTE
     exercises its rights as set forth in the Amended and Restated Certificate
     of Incorporation to convert the Class B Common Stock;

     (vi) Declares extraordinary dividends or makes other extraordinary
     distributions to the holders of shares of its capital stock;

     (vii) Issues any equity securities or securities convertible or exercisable
     into equity securities ("SHARES") except for: (1) Shares issued in
     connection with acquisitions, provided that the aggregate number of Shares
     issued in connection with any such acquisitions does not exceed 30% of the
     shares of Common Stock outstanding upon the consummation of the Initial
     Public Offering (including shares of Common Stock outstanding immediately
     after the exercise of the underwriters over-allotment option, if any); (2)
     Shares issued to fund operating needs (including capital expenditures),
     provided that the aggregate number of Shares issued to fund such operating
     needs does not exceed 5% of the shares of Common Stock outstanding upon the
     consummation of the Initial Public Offering (including shares of Common
     Stock outstanding immediately after the exercise of the underwriters over-
     allotment option, if any); (3) Shares issued or granted to employees of
     Genuity; provided that (u) the number of Shares issued or granted to
     individuals who were employees of Genuity on April 6, 2000 does not exceed
     in the aggregate 5% of the shares of Common Stock outstanding upon the
     consummation of the Initial Public Offering (including shares of Common
     Stock outstanding immediately after the exercise of the underwriters over-
     allotment option, if any); (v) the number of Shares issued or granted to
     individuals who first become employees of Genuity within nine months of
     April 6, 2000, other than individuals who become employees of Genuity as a
     result of their former employer being acquired by Genuity, does not exceed
     in the aggregate 1% of the shares of Common Stock outstanding upon the
     consummation of the Initial Public Offering (including shares of Common
     Stock outstanding immediately after the exercise of the underwriters over-
     allotment option, if any); (w) the number of Shares issued or granted to
     individuals who become employees of Genuity beginning on or after January
     6, 2001, other than individuals who become employees of Genuity as a result
     of their former employer being acquired by Genuity, does not exceed in the
     aggregate 2.95% of the shares of Common Stock outstanding upon the
     consummation of the Initial Public Offering (including shares of Common
     Stock outstanding immediately after the

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     exercise of the underwriters over-allotment option, if any); (x) the number
     of Shares issued or granted to non-employee directors of Genuity does not
     exceed in the aggregate 0.05% of the shares of Common Stock outstanding
     upon the consummation of the Initial Public Offering (including shares of
     Common Stock outstanding immediately after the exercise of the underwriters
     over-allotment option, if any); (y) the number of Shares issued to a
     trustee or other fiduciary, or granted or reserved for issuance to the
     employees of Genuity described in the previous clauses (u), (v), and (w) in
     connection with Genuity's 401(k) or any similar plan, does not exceed 0.5%
     of the shares of Common Stock outstanding upon the consummation of the
     Initial Public Offering (including shares of Common Stock outstanding
     immediately after the exercise of the underwriters over-allotment option,
     if any); and (z) the number of Shares issued or granted to individuals who
     become employees of Genuity as a result of their former employer being
     acquired by Genuity, including Shares issued, granted or reserved for
     issuance to a trustee or other fiduciary or to Genuity's employees
     described in clause (y) in connection with Genuity's 401(k) or any similar
     plan, does not exceed 6% multiplied by the total of (i) the number of
     shares of Common Stock outstanding upon the consummation of the Initial
     Public Offering (including shares of Common Stock outstanding immediately
     after the exercise of the underwriters over-allotment option, if any) plus
     (ii) the number of Shares issued in connection with the acquisitions
     completed by Genuity, minus (iii) the aggregate number of Shares that may
     be issued under clauses (u), (v), (w), (x) and (y) above. In the event that
     options to purchase shares of Common Stock granted pursuant to Section
     3.1(a)(vii)(3) shall expire or terminate, those Shares shall become
     available for any of the purposes stated in subsections (1), (2) or (3) of
     this Section 3.1(a)(vii). For the purpose of calculating in this Section
     3.1(a)(vii) the percentage of the shares of Common Stock outstanding upon
     the consummation of the Initial Public Offering, all shares of Class B
     Common Stock shall have been deemed to have been converted into shares of
     Class A Common Stock pursuant to paragraph D.7(a)(ii) of the Fourth Article
     of the Amended and Restated Certificate of Incorporation.

     (b) Genuity shall notify GTE in writing at the address set forth in Section
     6.5 hereof no less than ten business days prior to entering into (i) an
     acquisition agreement or disposition agreement (including a binding letter
     of intent) for consideration, including the assumption of indebtedness, in
     excess of $100 million or (ii) a joint venture agreement (including a
     binding letter of intent) in which Genuity's investment shall exceed $100
     million.

SECTION 3.2  CONSENT RIGHTS NOT APPLICABLE.  Genuity shall not be required to
obtain the consent of GTE to take the actions set forth in Section 3.1, and
shall not be required to provide the notice called for in Section 3.1(b), if at
any time:

     (a) GTE and its Affiliates collectively do not have the right to vote more
     than 50% of the then outstanding shares of Class B Common Stock; or

     (b) The number of shares of Common Stock Owned (as defined in Section 6.15)
     by GTE and its Affiliates collectively would not constitute more than 10%
     of the then outstanding shares of Common Stock on an As Converted Basis; or

     (c) Any Person (as defined in Section 6.15) and its Affiliates (other than
     GTE and its Affiliates) collectively Own more than 50% of the then
     outstanding shares of Class B Common Stock.

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SECTION 3.3  ASSIGNABILITY.  The consent rights set forth in Section 3.1 may be
assigned by GTE, in whole or in part, to a Person that is not an Affiliate of
GTE that may exercise them so long as such Person directly or indirectly:

     (a) Owns and has the right to vote more than 50% of the then outstanding
     shares of Class B Common Stock; and

     (b) Owns or has the right to acquire more than 50% of the then outstanding
     shares of Common Stock on an As Converted Basis.

                                  ARTICLE IV
                      RIGHT TO PURCHASE ADDITIONAL SHARES

SECTION 4.1  RIGHT TO ACQUIRE ADDITIONAL SHARES.  If at any time during the one
year following the conversion by GTE or its Affiliates of any shares of Class B
Common Stock, GTE and its Affiliates Own a number of shares of Class A Common
Stock and Class C Common Stock that together equal or exceed 70% of the total
number of shares of Common Stock outstanding on an As Converted Basis, then GTE
shall have the right during the one year following such conversion to acquire
from Genuity a number of shares of Class A Common Stock (the "ADDITIONAL A
SHARES") such that, immediately after such acquisition, GTE and its Affiliates
shall Own 80% of the total number of shares of Common Stock outstanding
(including the Additional A Shares) on an As Converted Basis.

SECTION 4.2  ACQUISITION PRICE.  The acquisition price for each Additional A
Share shall be equal to the average of the closing prices on the Nasdaq National
Market for the Class A Common Stock for the 30 trading days immediately
preceding the date of the Acquisition Notice (as defined below).  The aggregate
acquisition price (the "AGGREGATE ACQUISITION PRICE") for the Additional A
Shares may be paid, in the sole discretion of GTE (except as provided in the
last sentence of this Section 4.2), in cash, stock or in other property
reasonably usable in Genuity's business with a fair market value equal to or in
excess of the Aggregate Acquisition Price.  The fair market value of any such
property will be established by an appraisal conducted by a nationally
recognized appraiser chosen by Genuity's independent directors.  GTE shall not
be permitted to pay the purchase price in property if Genuity's independent
directors determine that (1) Genuity's ownership of such property will violate
the law (including without limitation any federal or state regulations
applicable to Genuity); or (2) the property is not reasonably useful to Genuity
in light of its then existing business plan.

SECTION 4.3  DELIVERY OF ACQUISITION NOTICE; DOCUMENTATION.  In the event that
GTE wishes to exercise the right to purchase the Additional A Shares set forth
in Section 4.1 hereof, GTE shall deliver a notice (the "ACQUISITION NOTICE") to
Genuity at the address set forth in Section 6.5 hereof specifying the date that
it or its Affiliates converted any shares of Class B Common Stock and the number
of shares of Class A Common Stock and Class C Common Stock Owned by GTE and its
Affiliates as of the date of the Acquisition Notice.  GTE and Genuity shall
enter into a purchase agreement for the sale of the Additional A Shares
containing customary terms and conditions, including customary representations
and warranties with respect to the Additional A Shares.  The closing date of the
sale of the Additional A Shares shall occur no later than ten business days
after the date of the Acquisition Notice (or, in the event that GTE

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pays the Aggregate Acquisition Price in property, ten business days after the
receipt by Genuity of the appraisal described in Section 4.2).

SECTION 4.4  NUMBER OF EXERCISES.  Notwithstanding anything herein to the
contrary, GTE may exercise the right to purchase Additional A Shares set forth
in Section 4.1 only one time.

                                   ARTICLE V
            RIGHT OF FIRST OFFER; PAYMENT TO GENUITY UPON CONVERSION

SECTION 5.1  RIGHT OF FIRST OFFER.

(a)  Pursuant to the order of the Federal Communications Commission (the "FCC")
     issued on June 16, 2000 in connection with the merger of GTE and Bell
     Atlantic Corporation (the "FCC ORDER"), GTE and its Affiliates have agreed,
     in the circumstances therein described, and subject to the terms and
     conditions thereof and to any modification made by the FCC thereto or any
     waivers granted by the FCC with respect thereto, to offer shares of Class B
     Common Stock to Genuity prior to offering to sell such shares (or any
     shares into which they have been converted) to any other Person. In the
     event GTE and its Affiliates are required to offer shares of Class B Common
     Stock to Genuity under the FCC Order, GTE and its Affiliates shall so offer
     such shares, and Genuity may accept such offer and purchase such shares, in
     accordance with the procedures, for the price, and upon payment of the
     consideration as set forth in this Section 5.1.

(b)  In the event GTE and its Affiliates are required to offer shares of Class B
     Common Stock to Genuity, they shall notify Genuity in writing at the
     address set forth in Section 6.5 hereof (a "FIRST OFFER NOTICE") of the
     number of shares of Class B Common Stock being offered and of the offer
     price (determined as hereinafter set forth as of a date reasonably
     proximate to the date of the First Offer Notice). The First Offer Notice
     shall set forth in reasonable detail the calculation of the offer price as
     of such reasonably proximate date. Genuity shall have 90 days from the date
     that it receives the First Offer Notice to notify GTE and its Affiliates at
     the addresses set forth in Section 6.5 of its intention to accept the offer
     as to all the shares of Class B Common Stock covered thereby or to reject
     the offer (without prejudice to Genuity's right to offer a lower price or
     to offer to purchase fewer shares). In the event Genuity does not accept
     the offer as to all the shares of Class B Common Stock covered thereby, GTE
     and its Affiliates shall thereafter be free to dispose of such shares in
     such manner as they choose (subject to compliance with applicable law,
     including the FCC Order) without interference or objection from Genuity. In
     the event that Genuity elects to so exercise its rights, Genuity shall have
     180 days from the date that it received the First Offer Notice to make any
     financial or other arrangements and to consummate the purchase of all of
     the offered shares of Class B Common Stock pursuant to the First Offer
     Notice at the offer price, recalculated as of a date (the "PRICING DATE")
     that is five business days prior to the closing date of the purchase and
     sale of the shares as hereinafter set forth. Such offer price shall be
     payable, at Genuity's option, (i) in cash, (ii) by delivery by Genuity of
     an unsubordinated, marketable debt instrument of Genuity (which shall be
     guaranteed or co-executed by Genuity's principal operating subsidiaries)
     with a fair market value equal to its face amount (which shall be equal to
     such offer price) and which shall bear interest at a commercially
     reasonable rate, comparable to rates under similar instruments issued

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     by companies with debt ratings comparable to Genuity, with a commercially
     reasonable term for repayment, or (iii) part in cash and part by delivery
     of such a debt instrument. In the event that Genuity fails to consummate
     the purchase as set forth in the previous sentence, GTE and its Affiliates
     shall thereafter be free to dispose of such shares in such manner as they
     choose (subject to compliance with applicable law, including the FCC Order)
     without interference or objection from Genuity.

(c)  The price payable by Genuity upon consummation of a purchase and sale under
     this Section 5.1 shall be the lesser of:

     (i)  the fair market value of the shares on an As Converted Basis as of the
     Pricing Date, as determined by a nationally recognized independent
     investment banker selected jointly by Genuity and GTE, based upon the
     Average Closing Price of the Class A Common Stock; and

     (ii) (1) for any shares of Class B Common Stock in excess of the Ten
     Percent Amount, the S&P Amount with respect thereto as of the Pricing Date,
     and (2) for any shares of Class B Common Stock constituting a part of the
     Ten Percent Amount, the Market Value thereof as of the Pricing Date.

SECTION 5.2  PAYMENT TO GENUITY UPON CONVERSION.

(a)  Pursuant to the FCC Order, GTE and its Affiliates have agreed, in the
     circumstances therein described, and subject to the terms and conditions
     thereof and to any modification made by the FCC thereto or any waivers
     granted by the FCC with respect thereto, to forego and pay or otherwise
     deliver to Genuity a portion of the appreciation on the Class B Common
     Stock that they would otherwise realize upon conversion or certain sales
     thereof.  In the event GTE and its Affiliates are so required under the FCC
     Order to forego a portion of such appreciation, GTE and its Affiliates
     shall forego such portion, and Genuity shall distribute the same, in
     accordance with this Section 5.2.

(b)  In the event that, upon a conversion or sale of their shares of Class B
     Common Stock, GTE and its Affiliates are required to forego a portion of
     the appreciation in such shares of Class B Common Stock, they shall elect,
     in their sole discretion, to either (a) make a cash payment to Genuity
     equal to the Cash Payment Amount (as defined below) or (b) adjust the then
     outstanding Conversion Ratio (as defined in the Amended and Restated
     Certificate of Incorporation) such that they (or, in the case of a sale of
     the Class B Common Stock, their transferees) would not receive the Foregone
     Shares (as defined below) which they (or such transferees) otherwise would
     be entitled to receive upon conversion of the Class B Common Stock under
     the Amended and Restated Certificate of Incorporation.  In the event that,
     in connection with a sale of their shares of Class B Common Stock, GTE and
     its Affiliates elected to adjust the conversion ratio as described above,
     such adjustment shall be reflected in binding documentation executed by
     them, their transferee and Genuity.

(c)  Subject to compliance with applicable law, Genuity shall distribute the
     Cash Payment Amount or Foregone Shares, as the case may be, to the holders
     of the Class A Common Stock as of a record date that is one business day
     prior to the date of its receipt of the

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     Cash Payment Amount or one business day prior to the date on which the
     number of Foregone Shares is determined, on a pro rata basis. Genuity and
     GTE and its Affiliates shall take reasonable steps to ensure that GTE and
     its Affiliates do not receive any such distribution on any shares of Class
     A Common Stock acquired by GTE and its Affiliates upon conversion of shares
     of Class B Common Stock or Class C Common Stock.

SECTION 5.3  ARTICLE V DEFINITIONS.  As used in this Article V:

     "AGGREGATE APPRECIATION AMOUNT" shall mean, with respect to any shares of
     Class B Common Stock, (a) the Fair Value less (b) the Investment Amount.

     "AVERAGE CLOSING PRICE" shall mean, at any date of determination, the
     average of the closing prices of the Class A Common Stock on the Nasdaq
     National Market System on the thirty trading days immediately prior to the
     date of determination.

     "AVERAGE PERCENTAGE" shall mean, at any date of determination, the
     percentage of the Relevant Appreciation Amount required to be foregone by
     GTE and its Affiliates pursuant to the FCC Order (as the same may be
     modified or waived by the FCC).

     "CASH PAYMENT AMOUNT" shall mean the product of (a) the Relevant
     Appreciation Amount, (b) the Average Percentage and (c) one minus the
     combined state and federal tax rate that is or would be applicable to a
     sale by GTE of shares of Class B Common Stock.

     "FAIR VALUE" shall mean, with respect to any shares of Class B Common
     Stock, at any date of determination, the fair market value of such shares
     on an As Converted Basis. If GTE or its Affiliates are converting shares of
     Class B Common Stock, the Fair Value thereof shall be determined by a
     nationally recognized independent investment banker chosen by GTE and shall
     be based upon the Average Closing Price of the Class A Common Stock,
     adjusted by subtracting therefrom the value attributable to Genuity's
     rights to receive and distribute cash or shares under Section 5.2 hereof.
     If GTE or its Affiliates are selling shares of Class B Common Stock, the
     Fair Value thereof shall be the price at which such shares are being sold.

     "FOREGONE SHARES" shall mean a number of shares of Class A Common Stock
     equal to the quotient obtained by dividing (a) the Cash Payment Amount by
     (b) the Average Closing Price adjusted by subtracting therefrom the value
     attributable to Genuity's rights to receive and distribute cash or shares
     under Section 5.2 hereof. In the event such an adjustment was made by an
     investment banker for purposes of determining the Fair Value, the same
     adjustment shall be used for purposes of this definition. In the event the
     Fair Value was determined based on the price at which shares of Class B
     Common Stock were sold, GTE shall retain an investment banker to determine
     the adjustment required for purposes of this definition.

                                       10
<PAGE>

     "INVESTMENT AMOUNT" with respect to any shares of Class B Common Stock
     shall be equal to the product of (a) the number of shares of Class A Common
     Stock into which such shares of Class B Common convertible under paragraph
     D.7(a)(ii) of Article Fourth of the Amended and Restated Certificate of
     Incorporation and (b) the price per share at which the Class A Common Stock
     was sold in the Initial Public Offering.

     "MARKET VALUE" shall mean, with respect to any shares of Class B Common
     Stock, at any date of determination, the Average Closing Price as of such
     date of the shares of Class A Common Stock into which such shares of Class
     B Common Stock could be converted.

     "RELEVANT APPRECIATION AMOUNT" shall mean, at any date of determination,
     (a) the Aggregate Appreciation Amount less (b) the Ten Percent Appreciation
     Amount.

     "S&P AMOUNT" shall mean, with respect to any shares of Class B Common
     Stock, at any date of determination, an amount equal to pretax amount that
     a hypothetical investor would have available at such date if such investor
     had invested in the Standard & Poors 500 Index on the closing date of the
     Initial Public Offering a sum equal to GTE's Investment Amount with respect
     to such shares of Class B Common Stock.

     Shares of Class B Common Stock shall be deemed to constitute a part of the
     "TEN PERCENT AMOUNT" at any date of determination, if such shares, together
     with all other shares of Class B Common Stock constituting a part of the
     Ten Percent Amount, are convertible into a number of shares of Class A
     Common Stock not greater than the quotient obtained by dividing (a) the
     total number of shares of Common Stock then outstanding on an As Converted
     Basis by (b) ten. For purposes of determining whether any shares of Class B
     Common Stock constitute a part of the Ten Percent Amount or are in excess
     of the Ten Percent Amount, GTE and its affiliates shall in all instances be
     deemed to have sold or converted or be selling or converting first shares
     in excess of the Ten Percent Amount and only thereafter shares constituting
     a part of the Ten Percent Amount.

     "TEN PERCENT APPRECIATION AMOUNT" shall mean the portion of the Aggregate
     Appreciation Amount allocable to the Ten Percent Amount.

                                  ARTICLE VI
                                 MISCELLANEOUS

SECTION 6.1 ENFORCEMENT OF VOTING LIMITATION. Genuity covenants to enforce the
limitation on the voting rights of the Class A Common Stock set forth in
paragraph C.2 of the Fourth Article of the Amended and Restated Certificate of
Incorporation. In furtherance thereof, Genuity shall, not less than ten business
days prior to any vote of the holders of the Class A Common Stock, certify to
GTE in writing (the "GENUITY CERTIFICATION") at the address set forth in Section
6.5 hereof that it has (1) notified the board of directors of Genuity in

                                       11
<PAGE>

writing of any Schedule 13Ds or Schedule 13Gs (or any successor schedules or
forms under the Securities Exchange Act of 1934, as amended) on file with the
Securities and Exchange Commission with respect to Genuity and (2) specifically
identified to the board of directors any holder that has reported in such a
filing a beneficial ownership interest in Class A Common Stock in excess of 20%
(whether or not such beneficial ownership is disclaimed by the holder).  In the
event that the board of directors has required, pursuant to paragraph C.2(e) of
the Fourth Article of the Amended and Restated Certificate of Incorporation, any
holder to certify the number of shares of Class A Common Stock owned of record
or beneficially owned by such holder, the Genuity Certification shall so state
and shall state whether or not such holder has complied with such requirement.

SECTION 6.2  CERTAIN TRANSFERS OF CLASS B COMMON STOCK.  In the event that GTE
or CFS transfers shares of Class B Common Stock that, under the FCC Order
(including any amendment, modification or clarification thereof), are
convertible by such transferee into Class A Common Stock only in a Percentage
Driven Conversion (as defined in the Amended and Restated Certificate of
Incorporation) and not in a Ratio Driven Conversion (as defined in the Amended
and Restated Certificate of Incorporation), then (a) GTE or CFS, as the case may
be, shall include in a written transfer agreement relating to the transfer of
such shares of Class B Common Stock an agreement by such transferee, for itself
and any subsequent transferees, that such shares of Class B Common Stock shall
be convertible into Class A Common Stock only in a Percentage Driven Conversion
and not in a Ratio Driven Conversion and (b) such shares of Class B Common
Shares shall be legended prior to such transfer to indicate that they may be
converted only in a Percentage Driven Conversion.

SECTION 6.3  INITIALLY OUTSTANDING B SHARES.  The certificates representing the
Initially Outstanding B Shares will initially bear the following legend:

          THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
     REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), AND
     MAY NOT BE TRANSFERRED, SOLD OR DISPOSED OF IN THE ABSENCE OF REGISTRATION
     OR AN EXEMPTION THEREFROM UNDER THE ACT.

SECTION 6.4  ASSIGNMENT; BINDING EFFECT.  Other than as specified herein, this
Agreement shall not be assignable.  The provisions of this Agreement shall be
binding upon and inure to the benefit of the parties hereto and their respective
heirs, legal representatives, successors and assigns.

SECTION 6.5  NOTICES.  All notices and other communications provided for herein
shall be in writing and shall be deemed to have been duly given when delivered
personally or sent by telecopy or three (3) business days after being mailed by
registered or certified mail, return receipt requested, postage prepaid, to the
party to whom it is directed:

                                       12
<PAGE>

     (i)  If to Genuity, to:  Genuity Inc.
                              3 Van de Graaff Drive
                              Burlington, Massachusetts  01803
                              Attention:  Ira H. Parker, Esq.
                              Facsimile:  (781) 262-3408

                              with a copy to:

                              Ropes & Gray
                              One International Place
                              Boston, Massachusetts 02110-2624
                              Attention:  Keith F. Higgins, Esq.
                              Facsimile:  (617) 951-7050

     (ii) If to GTE, to:      GTE Corporation
                              1255 Corporate Drive
                              Irving, Texas  76051
                              Attention:  General Counsel
                              Facsimile:  (972) 507-2332

                              with copies to:

                              Bell Atlantic Corporation
                              1095 Avenue of the Americas
                              New York, New York  10036
                              Attention:  Associate General Counsel -
                                            Mergers and Acquisitions
                              Facsimile:  (212) 764-2739

                                   and

                              O'Melveny & Myers LLP
                              153 East 53rd Street
                              New York, New York  10022
                              Attention:  Jeffrey J. Rosen, Esq.
                              Facsimile:  (212) 326-2061

or to such other address or facsimile number as the addressee may have specified
in a notice duly given to the sender as provided in this Section 6.5.

SECTION 6.6  COUNTERPARTS.  This Agreement may be executed in any number
of counterparts, each of which shall be deemed to be an original, but such
counterparts together shall constitute one and the same instrument.

SECTION 6.7  SECTION HEADINGS.  The section headings of this Agreement are for
convenience of reference only and shall not be deemed to limit or affect any of
the provisions hereof.

                                       13
<PAGE>

SECTION 6.8  AMENDMENTS; NO WAIVERS.  Any provision of this Agreement may be
waived or amended if, and only if, such amendment or waiver is in writing and
signed by all of the parties hereto.  No failure by any party to insist upon the
strict performance of any covenant, duty, agreement or condition of this
Agreement, or to exercise any right or remedy consequent upon a breach hereof,
shall constitute a waiver of any such breach or any other covenant, duty,
agreement or condition hereof.

SECTION 6.9  ENTIRE AGREEMENT.  This Agreement constitutes the entire Agreement
and understandings of the parties and supersedes all prior agreements and
understandings, both written and oral, among the parties with respect to the
subject matter hereof.

SECTION 6.10  SEVERABILITY.  If it is determined by a court of competent
jurisdiction that any provision of this Agreement is invalid under applicable
law, such provision shall be ineffective only to the extent of such invalidity,
without invalidating the remainder of this Agreement.

SECTION 6.11  GOVERNING LAW.  This Agreement shall be governed by and construed
in accordance with the laws of the State of New York (without regard to the
choice of law provisions thereof).

SECTION 6.12  JURISDICTION.  EACH PARTY HEREBY IRREVOCABLY SUBMITS TO AND
ACCEPTS FOR ITSELF AND ITS PROPERTIES, GENERALLY AND UNCONDITIONALLY, THE NON-
EXCLUSIVE JURISDICTION OF AND SERVICE OF PROCESS PURSUANT TO THE LAWS OF THE
STATE OF NEW YORK AND THE RULES OF ITS COURTS, WAIVES ANY DEFENSE OF FORUM NON
CONVENIENS AND AGREES TO BE BOUND BY ANY JUDGMENT RENDERED THEREBY ARISING UNDER
OR OUT OF OR IN RESPECT OF OR IN CONNECTION WITH THIS AGREEMENT.  EACH PARTY
FURTHER IRREVOCABLY DESIGNATES AND APPOINTS THE INDIVIDUAL IDENTIFIED IN OR
PURSUANT TO SECTION 6.5 HEREOF TO RECEIVE NOTICES ON ITS BEHALF.  A COPY OF ANY
SUCH PROCESS SO SERVED SHALL BE MAILED BY REGISTERED MAIL TO EACH PARTY AT ITS
ADDRESS PROVIDED IN SECTION 6.5; PROVIDED THAT, UNLESS OTHERWISE PROVIDED BY
APPLICABLE LAW, ANY FAILURE TO MAIL SUCH COPY SHALL NOT AFFECT THE VALIDITY OF
THE SERVICE OF SUCH PROCESS.  IF ANY AGENT SO APPOINTED REFUSES TO ACCEPT
SERVICE, THE DESIGNATING PARTY HEREBY AGREES THAT SERVICE OF PROCESS SUFFICIENT
FOR PERSONAL JURISDICTION IN ANY ACTION AGAINST IT IN THE APPLICABLE
JURISDICTION MAY BE MADE BY REGISTERED OR CERTIFIED MAIL, RETURN RECEIPT
REQUESTED, TO ITS ADDRESS PROVIDED IN SECTION 6.5.  EACH PARTY HEREBY
ACKNOWLEDGES THAT SUCH SERVICE SHALL BE EFFECTIVE AND BINDING IN EVERY RESPECT.
NOTHING HEREIN SHALL AFFECT THE RIGHT TO SERVE PROCESS IN ANY OTHER MANNER
PERMITTED BY LAW OR SHALL LIMIT THE RIGHT OF ANY PARTY TO BRING ANY ACTION OR
PROCEEDING AGAINST THE OTHER PARTY IN ANY OTHER JURISDICTION.

SECTION 6.13  INTERPRETATION.  As used in this Agreement (including all
exhibits, schedules and amendments hereto), the masculine, feminine or neuter
gender and the singular or

                                       14
<PAGE>

plural number shall be deemed to include the others whenever the context so
requires. References to Sections and Articles refer to sections and articles of
this Agreement, unless the context otherwise requires. Words such as "herein,"
"hereinafter," "hereof," "hereto," "hereby" and "hereunder," and words of like
import, unless the context requires otherwise, refer to this Agreement. The word
"person" shall mean a natural person or a corporation, partnership, limited
liability company or other entity. The captions contained herein are for
convenience only and shall not control or affect the meaning or construction of
any provision of this Agreement.

SECTION 6.14  PLAN OF REORGANIZATION.  The parties hereby agree to adopt this
Agreement as a "plan of reorganization" within the meaning of Section 368 of the
Code.

SECTION 6.15  CERTAIN DEFINITIONS.  As used herein:

(a)  "AFFILIATE" shall have the meaning set forth in Rule 12b-2 of the General
     Rules and Regulations under the Securities Exchange Act of 1934, as
     amended, as in effect on the date of effectiveness of the Amended and
     Restated Certificate of Incorporation.

(b)  "AS CONVERTED BASIS" means, with respect to any calculation, that all
     shares of Class B Common Stock outstanding at the time of such calculation
     shall be deemed converted into shares of Class A Common Stock pursuant to
     paragraph D.7(a)(ii) of Article Fourth of the Amended and Restated
     Certificate of Incorporation except (i) shares of Class B Common Stock
     Owned by GTE or its Affiliates as to which Genuity requests that GTE
     furnish a certificate to the effect that, under the FCC Order, there is a
     reasonable probability that such shares may in the future be convertible
     under such paragraph D.7(a)(ii) of Article Fourth of the Amended and
     Restated Certificate of Incorporation, and GTE fails to furnish such
     certificate and (ii) shares of Class B Common Stock Owned by Persons other
     than GTE or its Affiliates which, when originally transferred by GTE or its
     Affiliates, were required to be transferred pursuant to an agreement to
     which Genuity is a party limiting the transferee's (and its successors' and
     assigns') rights to convert such shares to conversion under paragraph
     D.7(a)(i) of Article Fourth of the Amended and Restated Certificate of
     Incorporation.  For such purposes, shares of Class B Common Stock described
     in clauses (i) and (ii) of the preceding sentence shall be deemed converted
     into shares of Class A Common Stock pursuant to paragraph D.7(a)(i) of
     Article Fourth of the Amended and Restated Certificate of Incorporation.

(c)  "OWN," "OWNS" or "OWNED" shall mean, with respect to any shares of Common
     Stock, the possession of the economic benefits and burdens thereof.

(d)  "PERSON" means an individual, partnership, limited liability company,
     corporation, trust, association, or any other entity.

                  [Remainder of Page Intentionally Left Blank]

                                       15
<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first above written.

                              GTE CORPORATION

                              By:
                                  ------------------------------
                              Name:
                              Title:

                              By:
                                  ------------------------------
                              Name:
                              Title:

                              CONTEL FEDERAL SYSTEMS, INC.

                              By:
                                  ------------------------------
                              Name:
                              Title:

                              By:
                                  ------------------------------
                              Name:
                              Title:

                              GENUITY INC.

                              By:
                                  ------------------------------
                              Name:
                              Title:

                                       16<PAGE>

                                                                   Exhibit 10.36

                            SOFTWARE ESCROW AGREEMENT

         This Agreement made and entered into as of the ___ day of June, 2000
(the "Effective Date") by and between GTE Service Corporation and its Affiliates
("GTE") and Genuity Solutions Inc. ("GENUITY").

                              W I T N E S S E T H:
                              -------------------

         WHEREAS, GTE and GENUITY have entered into a Software License Agreement
dated as of _______________________ (the "License Agreement"), an IT Transition
Services Agreement dated as of ___________________________ (the "Transition
Services Agreement") and a Software Development and Technical Services Agreement
("Software Development Agreement"); and WHEREAS, under the terms of the License
Agreement the parties have agreed to enter into a Software Escrow Agreement
respecting the Licensed Programs identified on Schedule A to the License
Agreement (the "Licensed Programs"); and
         WHEREAS, the parties wish to enter into this Software Escrow Agreement
in satisfaction of the said obligation under the License Agreement and for other
purposes;

         NOW, THEREFORE, in consideration of the mutual covenants contained
herein, and in satisfaction of the parties' said agreement to enter into a
Software Escrow Agreement, the parties agree as follows:

Section 1.  Delivery of Source Code and Grant of Rights and Licenses Granted to
---------   --------------------------------------------------------------------
GENUITY.
-------
     (a)     Creation of Escrow. GTE shall deliver to GENUITY as set forth in
             ------------------                       -----------------------
     this Agreement, or, upon mutual agreement of the parties, to an
     --------------
                                      -1-
<PAGE>

acceptable escrow agent (the "Escrow Agent"), upon terms and conditions of an
escrow agreement mutually acceptable to GTE, GENUITY and the Escrow Agent and
                                             -------
consistent with the provisions of this Agreement, one copy of all source code
and related documentation, in the form and content it currently exists within
GTE, including all modifications and future releases thereafter made by GTE
which are provided to GENUITY as Licensed Programs through the date that GENUITY
assumes responsibility for the Licensed Programs, but no later than the date GTE
ceases providing Services under the Transition Services Agreement for the
Licensed Programs, or to any other software mutually agreed in writing by the
parties, excluding Third Party Software (unless GTE has the right to provide the
source code for such Third Party Software to GENUITY without the payment of
                                             -------
compensation to such third parties and without affecting GTE's rights in and to
such Third Party Software, unless Genuity obtains such rights from such third
party, or if payment of compensation is required to such third party unless
GENUITY pays such compensation), (collectively, the "Source Code"). The copy of
the Source Code shall be accompanied by a description of the Source Code being
delivered in the form attached hereto as Exhibit A and shall be delivered in one
or more packages clearly labeled so as to indicate the name of the Licensed
Program for which the contents are all or a part of the Source Code. Such copy
and accompanying description of Source Code shall be referred to

                                      -2-
<PAGE>

herein as a "Deposit". Once the Source Code has been released by the Escrow
Agent or otherwise provided by GTE to GENUITY, neither GTE nor the Escrow Agent
                                      -------
shall have any further obligations to GENUITY with respect to such Source Code
                                      -------
except as otherwise set forth herein.

     (b) In the event that such Source Code is released by the Escrow Agent or
         otherwise provided by GTE to GENUITY pursuant to this Agreement, GTE
                                      -------
         hereby grants to GENUITY a perpetual limited, personal, nontransferable
                          -------
         and nonexclusive license to use such Source Code solely for the purpose
         of maintaining, modifying, enhancing and creating new versions of the
         Licensed Software during the License Term (collectively, the "Modified
         Licensed Software"). Said license to use the Source Code shall not be
         transferable or sublicensable, but shall include the right to have the
         Licensed Software maintained by a third party, provided that GTE shall
         have the right to enforce its rights in such Source Code, Licensed
         Software and Modified Licensed Software directly against such third
         party subject to consultation with GENUITY which consultation shall
         consist of the following: GTE and Genuity shall cooperate to resolve
         any issues resulting from maintenance by a third party. If a dispute
         cannot be resolved within thirty (30) days from the date of notice by
         GTE, GTE and Genuity shall each designate an executive to meet and
         negotiate in good faith to resolve the dispute. If, despite such good
         faith efforts, GTE and Genuity cannot resolve the dispute within thirty
         (30)
                                      -3-
<PAGE>

days from the date discussions are initiated, GTE may proceed to enforce its
rights. The foregoing notwithstanding, GTE may immediately seek injunctive
relief to protect GTE's intellectual property rights. The Modified Licensed
Software shall be deemed to be Licensed Software for purposes of the License
Agreement and shall be subject to the terms and conditions of the License
Agreement provided that (i) the license for the Modified Licensed Software as
well as all Licensed Software shall be perpetual; and (ii) the Licensed Programs
may be provided by GENUITY to and used by customers and end users of Genuity
products and services in the ordinary course of business solely for the use of
such Genuity services or products by such customers and end users.

(c) Title to Source Code (Including Source Code for Modified Licensed Software)
    ---------------------------------------------------------------------------
and Modified Licensed Software. GTE shall retain all right, title and
------------------------------
interest in and to the Source Code (excluding the Source Code for (i) that
portion of software first created by GTE for Genuity pursuant to an Exclusive
Statement of Work; (ii) that portion of software first created by GTE for
Genuity that is developed exclusively for Genuity by GTE regardless of whether
any Statement of Work expressly indicates that it is an Exclusive Statement of
Work; and (iii) software GTE and Genuity mutually agree in writing is owned
exclusively by Genuity (collectively "Exclusive Source Code")) including the
Source Code for the Modified Licensed Programs and

                                      -4-
<PAGE>

the Modified Licensed Software, including all patents, copyrights, trade secrets
and other proprietary rights therein or based thereon, and any and all copies,
in whole or in part, thereof. Subject to the license granted to GTE pursuant to
Section 6.3 of the Software Development Agreement, Genuity shall own the
Exclusive Source Code and the object code compiled therefrom, and all
intellectual property rights therein, except for any portion of such source code
or object code, if any, that is Licensed Software or Modified Licensed Software
or a derivative work of Licensed Software or Modified Licensed Software.

Section 2.  Participation and Fees.
---------

(a)  To the extent GTE and GENUITY agree to use an Escrow Agent, GENUITY and GTE
                           -------                               -------
     shall each pay to the Escrow Agent one-half of the applicable Escrow Fees
     immediately following delivery of the Deposit. If the Source Code has not
     been released or otherwise provided by GTE to GENUITY, GENUITY shall cease
                                                   -------  -------
     to be entitled to the future release of any Source Code under this
     Agreement upon the first to occur of either (i) the expiration or earlier
     termination of the License Agreement or the Transition Services Agreement
     or (ii) failure of GENUITY to pay any fees due and payable by GENUITY
                        -------                                    -------
     pursuant to this Agreement. GTE shall notify the Escrow Agent in writing of
     any such expiration or termination and shall transmit promptly a copy of
     such notice to GENUITY, and Escrow Agent
                    -------
                                      -5-
<PAGE>

     shall notify GTE in writing of any such failure to pay any Escrow Fees and
     shall transmit promptly a copy of such notice to GENUITY. In the event GTE
                                                      -------
     gives written notice to Escrow Agent stating that the License Agreement or
     Transition Services Agreement has expired or been terminated, or in the
     event that Escrow Agent gives GTE written notice that GENUITY has failed to
                                                           -------
     pay any Annual Escrow Fee and the Source Code has not been released or
     otherwise provided to GENUITY, GTE may request return of the Deposit.
                           -------
     Immediately upon receipt of such request, and payment by GTE of the Deposit
     Return Fee, Escrow Agent shall return the Deposit to GTE.

     (b)

Section 3. Event of Release of the Deposit.
---------  -------------------------------

     An "Event of Release" shall be deemed to have occurred under this
Agreement if:

     (a) GTE materially defaults in its obligation under the Transition Services
Agreement to maintain and support one or more of the Licensed Programs, and such
default has not been cured or otherwise resolved in the manner provided by the
Transition Services Agreement, and GENUITY's use of the Affected Licensed
                                   ---------
Program is likely to be seriously impaired as a result of the said default; or

     (b) GENUITY requests that the Source Code and Deposit be delivered or
         -------
otherwise provided to GENUITY during the term of this Agreement.
                      -------

Section 4.  Release of the Source Code and Deposit.
---------   --------------------------------------

     (a) GTE Makes Delivery of Source Code. GTE agrees to provide such Source
         ---------------------------------

         Code after the occurrence of an Event of Release as soon as reasonably

         practicable, but no later than sixty (60) days after such Event of

         Release.

                                      -6-
<PAGE>

     (b) Escrow Agent Makes Release of Deposit. To obtain the release of the
         -------------------------------------
         Deposit from the Escrow Agent for a particular Licensed Program (to the
         extent the Source Code is a Deposit with the Escrow Agent) following
         the occurrence of an Event of Release, GENUITY shall give written
                                                -------
         notice to Escrow Agent and GTE of the occurrence of an Event of
         Release, which notice shall specify the nature of the Event of Release
         and identify with specificity the Program affected (the "Affected
         Licensed Program") and, if appropriate, the reasons why GENUITY's use
                                                                 ---------
         of such Licensed Program will be seriously impaired. GENUITY and GTE
                                                              -------
         shall each deliver to Escrow Agent payment of one-half of the
         applicable Escrow Fee, Genuity shall deliver to Escrow Agent the
         original return receipt proving the receipt by GTE of the aforesaid
         notice, and Escrow Agent shall deliver to GTE a copy of any notice
         delivered to it by GENUITY pursuant to this Section 4 no later than
                            -------
         fifteen (15) business days after receipt thereof by Escrow Agent.
         Unless, within thirty (30) business days following the receipt by
         Escrow Agent of such return receipt, GTE delivers to Escrow Agent an
         affidavit to the effect that no such Event of Release has occurred, or
         that, if an Event of Release has occurred, it is no longer continuing,
         or that GENUITY is in default under one or more of its agreements with
                 -------
         GTE, Escrow Agent shall, at the expense of GENUITY and GTE, reproduce
                                                    -------
         the Deposit source code for the Affected Licensed Program and deliver
         the reproduced copy thereof to GENUITY at the address given
                                        -------

                                      -7-
<PAGE>

     below. Escrow Agent shall provide GTE with GENUITY's signed receipt for
                                                ---------
     such delivery.  Escrow Agent shall thereafter continue to hold the Deposit
     for such Licensed Program pursuant to the terms of this Agreement. If such
     an affidavit is delivered to Escrow Agent by GTE within such thirty (30)
     business day period, then Escrow Agent shall not deliver any Deposit or
     other source code for the Affected Licensed Program to GENUITY until
                                                            -------
     instructed to do so by both Genuity and GTE.

Section 5. Dispute Resolution.
-----------------------------

     Any dispute between GTE and GENUITY regarding the terms and conditions of
                                 -------
this Escrow Agreement, including, without limitation, Section 4, shall be
resolved in the manner provided in Section 12.3 of the License Agreement;
provided, however, that if the matter becomes subject to arbitration as provided
therein the arbitrator shall have no authority to render monetary damages of any
kind for any violation or alleged violation of this Agreement.

Section 6.  Limited Liability of Escrow Agent.
---------   ---------------------------------

     Escrow Agent shall not by reason of its performing escrow services pursuant
to this Agreement assume any responsibility or liability other than for the
performance of its obligations with respect to the Deposit. Escrow Agent shall
act hereunder as a depository only and shall not be responsible for the
sufficiency, correctness, genuineness or validity of the Deposit, nor shall it
have any obligation to ensure that GTE delivers updated versions of the Deposit.
Escrow Agent shall not be liable for any failure of either GTE or GENUITY to
                                                                  -------
comply with any of the provisions of this Agreement. Escrow

                                      -8-
<PAGE>

Agent shall be entitled to rely upon any notice, signature or writing which on
its face purports to be genuine and to be signed and presented by a proper
representative of a party or parties. Escrow Agent's decision as to the
sufficiency of any notice or affidavit delivered to it pursuant to this
Agreement shall be final and conclusive. Escrow Agent shall not be obligated
under this Agreement to any third person other than GTE and GENUITY. In no event
                                                            -------
shall Escrow Agent be liable for any loss, damage or other injury to any person
as a result of any act or failure to act in connection with this Agreement which
is not due to Escrow Agent's gross negligence or willful misconduct, and GTE and
GENUITY shall indemnify Escrow Agent and hold it harmless from any and all
-------
liabilities, damages, costs and expenses, including reasonable attorneys' fees,
which may be sustained or incurred by Escrow Agent as a result of any such act
or failure to act.

Section 7. Fees and Expenses of Escrow Agent.
---------  ---------------------------------

GENUITY and GTE shall each pay one-half of the fees, if any, for Escrow
-------
Agent's services hereunder (including the "Initial Escrow Fee," Deposit Return
Fee," and "Annual Escrow Fee"; collectively the "Escrow Fees") in accordance
with Escrow Agent's published price list therefor. Escrow Agent shall invoice
all such fees and GENUITY and GTE shall make payment to Escrow Agent in the
                  -------
amount of an invoiced fee within thirty (30) days following receipt of the
invoice. Failure of GENUITY and GTE so to make a payment shall give Escrow Agent
                    -------
the right to terminate this Agreement.

Section 8.  Non-Disclosure of Source Code (Including Source Code for the Source
----------  -------------------------------------------------------------------
Code. Modified Licensed Software), Modified Licensed Software and Exclusive
---------------------------------------------------------------------------
Source Code.
-----------

                                      -9-
<PAGE>

(a)  The Escrow Agent acknowledges that all Source Code is confidential and
     constitutes a valuable asset of GTE and, in the instance of Exclusive
     Source Code, Genuity. The Escrow Agent shall hold all Source Code,
     including Exclusive Source Code, strictly confidential and, except as
     expressly permitted in this Agreement, shall not disclose, publish, display
     or otherwise make available to any person or entity any Source Code or any
     part or copy thereof without GTE's and, in the instance of Exclusive Source
     Code, Genuity's prior written consent. The Escrow Agent shall not
     duplicate, copy, reproduce or use any Deposit, or portion thereof, other
     than for the purpose of providing a copy thereof to GENUITY in accordance
                                                         -------
     with Sections 3 and 4 of this Agreement. The Escrow Agent shall limit
     access to all Source Code, including Exclusive Source Code, to its bona
     fide employees whose access to Source Code is necessary to performance of
     Escrow Agent's duties hereunder and shall take all actions and precautions
     necessary to prevent unauthorized display, publication, disclosure or use
     of, or access to, all Source Code, including Exclusive Source Code. The
     Escrow Agent shall not remove any copyright or proprietary rights notice
     included in or on any Source Code and shall reproduce all such notices on
     and in any copies of any Source Code which the Escrow Agent may make.

(b)  GENUITY acknowledges that all Source Code (including the Source Code for
     -------
     the Modified Licensed Software) and Modified Licensed Software are
     confidential and constitute a valuable asset of GTE, except for Exclusive
     Source Code. GENUITY shall hold all Source Code (including Source Code for
                  -------
     the Modified

                                     -10-
<PAGE>

     Licensed Software) and Modified Licensed Software strictly
     confidential and, shall not disclose, publish, display or otherwise make
     available to any person or entity any Source Code (including Source Code
     for the Modified Licensed Software) or Modified Licensed Software (except
     as otherwise expressly permitted in Section 3.1 of the License Agreement)
     or any part or copy thereof without GTE's prior written consent. GENUITY
                                                                      -------
     shall not duplicate, copy, reproduce or use any Source Code (including
     Source Code for the Modified Licensed Software), or portion thereof, other
     than for the purpose of exercising the rights and licenses granted to
     GENUITY pursuant to Sections 1(b) and (c) of this Agreement. GENUITY shall
     -------                                                      -------
     limit access to all Source Code (including the Source Code for the Modified
     Licensed Software) to its bona fide employees whose access to such Source
     Code is necessary to exercise the rights and licenses granted hereunder and
     shall take all actions and precautions necessary to prevent unauthorized
     display, publication, disclosure or use of, or access to, all such Source
     Code or Modified Licensed Software. GENUITY shall not remove any copyright
                                         -------
     or proprietary rights notices included in or on any Source Code (and shall
     include all such copyright and proprietary rights notices in and on the
     Source Code, or portions thereof, for the Modified Licensed Software and in
     and on the Modified Licensed Software) and shall reproduce all such notices
     on and in any copies of any such Source Code and Modified Licensed
     Software. The foregoing notwithstanding, nothing contained herein shall
     require GENUITY to provide copies
             -------

                                     -11-
<PAGE>

     of the Modified Licensed Software or the
     Source Code therefor to GTE. The provisions of this Section 8(b) shall not
     apply to Exclusive Source Code.

Section 9.  Resignation of Escrow Agent.
---------   ---------------------------

Escrow Agent may resign from its duties hereunder by giving sixty (60) days'
prior written notice to GTE and GENUITY of its resignation. GTE and GENUITY
                                -------                             -------
shall thereafter use their best efforts to appoint a successor escrow agent, to
the extent an escrow agent is required.

Section 10. Transition to Genuity.
----------------------------------

GTE shall use its best efforts to provide all items, services and personnel
necessary to effectuate and ensure a smooth and timely transition for GENUITY
from dependence on Services under each SOW to standalone ability to perform such
Services itself or in conjunction with third parties. Both parties shall make
reasonable appropriate resources available in connection with such transition,
and any such steps taken by GTE shall be accomplished prior to the expiration of
the term of the SOWs.

Section 11.  General.
----------   -------

     (a) Conflict. In the event of conflict between the provisions of this
         ---------
     Agreement and the provisions of the agreements referenced in the first
     "Whereas", the provisions of this Agreement shall take precedence. However,
     Genuity and GTE agree that any variance between the provisions set forth in
     Section 10 and any similar provisions contained in such referenced
     agreements will not result in such similar provisions being superseded by
     Section 10.

     (b) Section 13, General, of the License Agreement is incorporated herein by
     reference.

                                     -12-
<PAGE>

         IN WITNESS WHEREOF, the parties have executed this Agreement in
duplicate, as a sealed instrument, as of the day and year first above written.

                             GTE SERVICE CORPORATION.

                             By:__________________

                             Its___________________________

                             Genuity Solutions Inc.

                             By:_____________

                             Its:__________________________

                                      -13-
<PAGE>

                                  APPENDIX A
                                  ----------

                       "Description of Deposit Materials"

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