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                                                                   EXHIBIT 10.37

                                                                  Execution Copy

                           SENIOR MANAGEMENT AGREEMENT

          THIS SENIOR MANAGEMENT AGREEMENT (this "Agreement") is made as of
February 14, 2003, by and among TSI Telecommunication Holdings, LLC, a Delaware
limited liability company (the "Company"), TSI Telecommunication Services Inc.,
a Delaware corporation ("Employer"), and Linda Hermansen ("Executive").

          The Company and Executive desire to enter into an agreement pursuant
to which Executive will purchase from the Company, and the Company will sell
270,270.27 of the Company's Common Units (the "Common Units"). The Common Units
acquired by Executive pursuant to Section 1(a) of this Agreement are referred to
herein as "Carried Units". Certain definitions are set forth in Section 9 of
this Agreement.

          Certain provisions of this Agreement are intended for the benefit of,
and will be enforceable by GTCR Fund VII, L.P., a Delaware limited partnership
("GTCR Fund VII"), GTCR Fund VII/A, L.P., a Delaware limited partnership ("GTCR
Fund VII/A"), GTCR Co-Invest, L.P., a Delaware limited partnership ("GTCR
Co-Invest", together with GTCR Fund VII, GTCR Fund VII/A and any other
investment fund managed by GTCR Golder Rauner, L.L.C., each an "Investor" and
collectively, the "Investors").

          Employer desires to employ Executive on the terms and conditions set
forth herein, and Executive is willing to accept such employment on such terms
and conditions.

          NOW, THEREFORE, in consideration of the mutual covenants contained
herein and other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties to this Agreement hereby agree as
follows:

                      PROVISIONS RELATING TO CARRIED UNITS

          1.   Purchase and Sale of Carried Units.

          (a) Upon execution of this Agreement, Executive will purchase, and the
Company will sell, 270,270.27 Common Units at a price of $0.0333 per unit. The
Company will deliver to Executive copies of the certificates representing such
Common Units, and Executive will deliver to the Company a cashier's or certified
check or wire transfer of immediately available funds in an aggregate amount of
$9,000.00 as payment for such Common Units. Executive shall also execute and
deliver to the Company the Joinder Agreements (attached hereto as Exhibit C)
with respect to each of the LLC Agreement, the Securityholders Agreement, and
the Registration Agreement dated February 14, 2002, by and among the Company and
the other parties thereto.

          (b) Within 30 days after the purchase of the Carried Units hereunder,
Executive will make an effective election with the Internal Revenue Service
under Section 83(b) of the Internal Revenue Code and the regulations promulgated
thereunder in the form of Exhibit A attached hereto.

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          (c) Until the occurrence of a Sale of the Company, any certificates
evidencing Carried Units shall be held by the Company for the benefit of
Executive and the other holder(s) of Carried Units. Upon the occurrence of a
Sale of the Company, the Company will return any such certificates for the
Carried Units to the record holders thereof. Upon the occurrence of a Public
Offering, the Company will return to the record holders thereof any certificates
representing Vested Units.

          (d) In connection with the purchase and sale of the Carried Units,
Executive represents and warrants to the Company that:

               (i) The Carried Units to be acquired by Executive pursuant to
     this Agreement will be acquired for Executive's own account and not with a
     view to, or intention of, distribution thereof in violation of the
     Securities Act, or any applicable state securities laws, and the Carried
     Units will not be disposed of in contravention of the Securities Act or any
     applicable state securities laws.

               (ii) Executive is an executive officer of the Employer or a
     Subsidiary, is sophisticated in financial matters and is able to evaluate
     the risks and benefits of the investment in the Carried Units.

               (iii) Executive is able to bear the economic risk of her
     investment in the Carried Units for an indefinite period of time because
     the Carried Units have not been registered under the Securities Act and,
     therefore, cannot be sold unless subsequently registered under the
     Securities Act or an exemption from such registration is available.

               (iv) Executive has had an opportunity to ask questions and
     receive answers concerning the terms and conditions of the offering of
     Carried Units and has had full access to such other information concerning
     the Company as she has requested.

               (v) This Agreement constitutes the legal, valid and binding
     obligation of Executive, enforceable in accordance with its terms, and the
     execution, delivery and performance of this Agreement by Executive does not
     and will not conflict with, violate or cause a breach of any agreement,
     contract or instrument to which Executive is a party or any judgment, order
     or decree to which Executive is subject.

               (vi) Executive is a resident of the State of Florida.

          (e) As an inducement to the Company to issue the Carried Units to
Executive, and as a condition thereto, Executive acknowledges and agrees that
neither the issuance of the Carried Units to Executive nor any provision
contained herein shall entitle Executive to remain in the employment of the
Company, Employer or their respective Subsidiaries or affect the right of the
Company, Employer or their respective Subsidiaries to terminate Executive's
employment at any time for any reason.

          (f) Concurrently with the execution of this Agreement, Executive shall
execute in blank ten security transfer powers in the form of Exhibit B attached
hereto (the "Security Powers") with respect to the Carried Units and shall
deliver such Security Powers to the Company. The Security Powers shall authorize
the Company to assign, transfer and deliver

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the Carried Units to the appropriate acquiror thereof pursuant to Section 3
below and Section 6 of the Securityholders Agreement and under no other
circumstances.

          (g) Executive is neither a party to, nor bound by, any other
employment agreement, consulting agreement, noncompete agreement,
nonsolicitation agreement or confidentiality agreement.

          2.   Vesting of Carried Units.

          (a) The Carried Units shall be subject to vesting in the manner
specified in this Section 2. Except as otherwise provided in Section 2(b) below,
5% of the Carried Units will become vested on each Quarter Date such that on
February 14, 2008 the Carried Units will be 100% vested, in each case, however,
if and only if as of each such Quarter Date Executive has been continuously
employed by the Company, Employer or any of their respective Subsidiaries from
the date of this Agreement through and including such Quarter Date.

          (b) Upon the occurrence of a Sale of the Company, all Carried Units
that have not yet become vested shall become vested at the time of such event,
if as of the date of such event Executive is still employed by the Company,
Employer or any of their respective Subsidiaries. Carried Units that have become
vested are referred to herein as "Vested Units." All Carried Units that have not
vested are referred to herein as "Unvested Units."

          3.   Repurchase Option.

          (a) In the event Executive ceases to be employed by the Company,
Employer or their respective Subsidiaries for any reason (the "Separation"), the
Carried Units (whether held by Executive or one or more of Executive's
transferees, other than the Company and the Investors) will be subject to
repurchase, in each case by the Company and the Investors pursuant to the terms
and conditions set forth in this Section 3 (the "Repurchase Option"). The
Company may assign its repurchase rights set forth in this Section 3 to any
Person; provided that the Company may not assign to any Person its right to pay
any portion of the Repurchase Price for Carried Units repurchased hereunder in
the form of Class A Preferred, as set forth in Section 3(e).

          (b) In the event of a Separation: (i) the purchase price for each
Unvested Unit will be the lesser of (A) Executive's Original Cost for such Unit
and (B) the Fair Market Value of such Unit as of the date of Separation; and
(ii) the purchase price for each Vested Unit will be the Fair Market Value of
such unit as of the date of the Separation.

          (c) The Board may elect to purchase all or any portion of the Unvested
Units or the Vested Units by delivering written notice (the "Repurchase Notice")
to the holder or holders of the Carried Units within one year after the
Separation. The Repurchase Notice will set forth the number of Unvested Units
and Vested Units to be acquired from each holder, the aggregate consideration to
be paid for such units and the time and place for the closing of the
transaction. The number of Carried Units to be repurchased by the Company shall
first be satisfied to the extent possible from the Carried Units held by
Executive at the time of delivery of the Repurchase Notice. If the number of
Carried Units then held by Executive is less than the total number of Carried
Units which the Company has elected to purchase, the Company shall

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purchase the remaining Carried Units elected to be purchased from the other
holder(s) of Carried Units under this Agreement, pro rata according to the
number of Carried Units held by such other holder(s) at the time of delivery of
such Repurchase Notice (determined as nearly as practicable to the nearest
unit). The number of Unvested Units and Vested Units to be repurchased hereunder
will be allocated among Executive and the other holders of Carried Units (if
any) pro rata according to the number of Carried Units to be purchased from such
Person.

          (d) If for any reason the Company does not elect to purchase all of
the Carried Units pursuant to the Repurchase Option, the Investors shall be
entitled to exercise the Repurchase Option for all or any portion of the Carried
Units the Company has not elected to purchase (the "Available Units"). As soon
as practicable after the Company has determined that there will be Available
Units, but in any event within ten months after the Separation, the Company
shall give written notice (the "Option Notice") to the Investors setting forth
the number of Available Units and the purchase price for the Available Units.
The Investors may elect to purchase any or all of the Available Units by giving
written notice to the Company within one month after the Option Notice has been
given by the Company. If the Investors elect to purchase an aggregate number
greater than the number of Available Units, the Available Units shall be
allocated among the Investors based upon the number of Common Units owned by
each Investor. As soon as practicable, and in any event within ten days after
the expiration of the one-month period set forth above, the Company shall notify
each holder of Carried Units as to the number of units being purchased from such
holder by the Investors (the "Supplemental Repurchase Notice"). At the time the
Company delivers the Supplemental Repurchase Notice to the holder(s) of Carried
Units, the Company shall also deliver written notice to each Investor setting
forth the number of units such Investor is entitled to purchase, the aggregate
purchase price and the time and place of the closing of the transaction. The
number of Unvested Units and Vested Units to be repurchased hereunder shall be
allocated among the Company and the Investors pro rata according to the number
of Carried Units to be purchased by each of them.

          (e) The closing of the purchase of the Carried Units pursuant to the
Repurchase Option shall take place on the date designated by the Company in the
Repurchase Notice or Supplemental Repurchase Notice, which date shall not be
more than one month nor less than five days after the delivery of the later of
either such notice to be delivered. The Company will pay for the Carried Units
to be purchased by it pursuant to the Repurchase Option by first offsetting
amounts outstanding under any bona fide debts owed by Executive to the Company
and will pay the remainder of the purchase price by, at its option, (A) a check
or wire transfer of funds, (B) issuing in exchange for such securities a number
of the Company's Class A Preferred (having the rights and preferences set forth
in the LLC Agreement) equal to (x) the aggregate portion of the repurchase price
for such Carried Units to be paid by the issuance of Class A Preferred divided
by (y) 1,000, and for purposes of the LLC Agreement each such Class A Preferred
unit shall as of its issuance be deemed to have Capital Contributions (as
defined in the LLC Agreement) made with respect to such Class A Preferred unit
equal to $1,000, or (C) any combination of (A) and (B) as the Board may elect in
its discretion. Each Investor will pay for the Carried Units purchased by it by
a check or wire transfer of funds. The Company and the Investors will be
entitled to receive customary representations and warranties from the sellers
regarding such sale and to require that all sellers' signatures be guaranteed.

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          By way of example only for the purpose of clarifying the mechanics of
Section 3(e)(B), if the Company intends to repurchase 45,045 Carried Units by
issuance of Class A Preferred and the aggregate repurchase price determined in
accordance with this Section 3 is $1,500, then the Company would issue to
Executive 1.5 units of Class A Preferred and for purposes of the LLC Agreement
the whole unit of Class A Preferred issued to Executive would as of its issuance
be deemed to have Capital Contributions made for such Class A Preferred of
$1,000 and the Capital Contributions made for the one-half unit of Class A
Preferred would be $500.

          (f) Notwithstanding anything to the contrary contained in this
Agreement, all repurchases of Carried Units by the Company pursuant to the
Repurchase Option shall be subject to applicable restrictions contained in the
Delaware Limited Liability Company Act, the Delaware General Corporation Law or
such other governing corporate law, and in the Company's and its Subsidiaries'
debt and equity financing agreements. If any such restrictions prohibit (i) the
repurchase of Carried Units hereunder which the Company is otherwise entitled to
make or (ii) dividends or other transfers of funds from one or more Subsidiaries
to the Company to enable such repurchases, then the Company may make such
repurchases as soon as it is permitted to make repurchases or receive funds from
Subsidiaries under such restrictions.

          (g) Notwithstanding anything to the contrary contained in this
Agreement, if the Fair Market Value of the Carried Units is finally determined
to be an amount at least 10% greater than the per unit repurchase price for such
Carried Units in the Repurchase Notice or in the Supplemental Repurchase Notice,
each of the Company and the Investors shall have the right to revoke its
exercise of the Repurchase Option for all or any portion of the Carried Units
elected to be repurchased by it by delivering notice of such revocation in
writing to the holders of Carried Units during the thirty-day period beginning
on the date that the Company and/or the Investors are given written notice that
the Fair Market Value of Carried Units was finally determined to be an amount at
least 10% greater than the per unit repurchase price for Carried Units set forth
in the Repurchase Notice or in the Supplemental Repurchase Notice.

          (h) The provisions of this Section 3 shall terminate with respect to
Vested Units upon the first to occur of the consummation of a Public Offering
and the consummation of a Sale of the Company.

          4.   Restrictions on Transfer of Carried Units.

          (a) Transfer of Carried Units. The holders of Carried Units shall not
Transfer any interest in any Carried Units, except pursuant to (i) the
provisions of Section 3 hereof, (ii) the provisions of Section 3 of the
Securityholders Agreement (a "Participating Sale"), (iii) an "Approved Sale" (as
defined in Section 6 of the Securityholders Agreement), or (iv) the provisions
of Section 4(b) below.

          (b) Certain Permitted Transfers. The restrictions in this Section 4
will not apply with respect to any Transfer of Carried Units made (i) pursuant
to applicable laws of descent and distribution or to such Person's legal
guardian in the case of any mental incapacity or among such Person's Family
Group, or (ii) at such time as the Investors sell Common Units in a Public Sale,
but in the case of this clause (ii) only an amount of units (the "Transfer
Amount")

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equal to the lesser of (A) the number of Vested Units owned by Executive and (B)
the number of Common Units owned by Executive multiplied by a fraction (the
"Transfer Fraction"), the numerator of which is the number of Common Units sold
by the Investors in such Public Sale and the denominator of which is the total
number of Common Units held by the Investors prior to the Public Sale; provided
that, if at the time of a Public Sale of units by the Investors, Executive
chooses not to Transfer the Transfer Amount, Executive shall retain the right to
Transfer an amount of Common Units at a future date equal to the lesser of (x)
the number of Vested Units owned by Executive at such future date and (y) the
number of Common Units owned by Executive at such future date multiplied by the
Transfer Fraction; provided further that the restrictions contained in this
Section 4 will continue to be applicable to the Carried Units after any Transfer
of the type referred to in clause (i) above and the transferees of such Carried
Units must agree in writing to be bound by the provisions of this Agreement. Any
transferee of Carried Units pursuant to a Transfer in accordance with the
provisions of this Section 4(b)(i) is herein referred to as a "Permitted
Transferee." Upon the Transfer of Carried Units pursuant to this Section 4(b),
the transferring holder of Carried Units will deliver a written notice (a
"Transfer Notice") to the Company. In the case of a Transfer pursuant to clause
(i) hereof, the Transfer Notice will disclose in reasonable detail the identity
of the Permitted Transferee(s).

          (c) Termination of Restrictions. The restrictions set forth in this
Section 4 will continue with respect to each unit of Carried Units until the
earlier of (i) the date on which such Carried Units have been transferred in a
Public Sale permitted by this Section 4, or (ii) the consummation of an Approved
Sale.

          5.   Additional Restrictions on Transfer of Carried Units.

          (a) Legend. The certificates representing the Carried Units will bear
a legend in substantially the following form:

     "THE SECURITIES REPRESENTED BY THIS CERTIFICATE WERE ORIGINALLY ISSUED AS
     OF FEBRUARY 14, 2003, HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
     1933, AS AMENDED (THE "ACT"), AND MAY NOT BE SOLD OR TRANSFERRED IN THE
     ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT OR AN
     EXEMPTION FROM REGISTRATION THEREUNDER. THE SECURITIES REPRESENTED BY THIS
     CERTIFICATE ARE ALSO SUBJECT TO ADDITIONAL RESTRICTIONS ON TRANSFER,
     CERTAIN REPURCHASE OPTIONS AND CERTAIN OTHER AGREEMENTS SET FORTH IN A
     SENIOR MANAGEMENT AGREEMENT BETWEEN THE COMPANY AND AN EXECUTIVE OF THE
     COMPANY DATED AS OF FEBRUARY 14, 2003. A COPY OF SUCH AGREEMENT MAY BE
     OBTAINED BY THE HOLDER HEREOF AT THE COMPANY'S PRINCIPAL PLACE OF BUSINESS
     WITHOUT CHARGE."

          (b) Opinion of Counsel. No holder of Carried Units may Transfer any
Carried Units (except pursuant to an effective registration statement under the
Securities Act) without first delivering to the Company a written notice
describing in reasonable detail the proposed Transfer, together with an opinion
of counsel (reasonably acceptable in form and substance to

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the Company) that neither registration nor qualification under the Securities
Act and applicable state securities laws is required in connection with such
transfer. In addition, if the holder of the Carried Units delivers to the
Company an opinion of counsel that no subsequent Transfer of such Carried Units
shall require registration under the Securities Act, the Company shall promptly
upon such contemplated Transfer deliver new certificates for such Carried Units
which do not bear the Securities Act portion of the legend set forth in Section
5(a). If the Company is not required to deliver new certificates for such
Carried Units not bearing such legend, the holder thereof shall not Transfer the
same until the prospective transferee has confirmed to the Company in writing
its agreement to be bound by the conditions contained in this Section 5.

                        PROVISIONS RELATING TO EMPLOYMENT

          6. Employment. Employer agrees to employ Executive and Executive
accepts such employment for the period beginning as of the date hereof and
ending upon her separation pursuant to Section 6(c) hereof (the "Employment
Period").

          (a) Position and Duties.

               (i) During the Employment Period, Executive shall serve as the
     Vice President - Business Development of Employer and its Subsidiaries and
     shall have the normal duties, responsibilities and authority implied by
     such position, subject to the power of the Chief Executive Officer and the
     Board to expand or limit such duties, responsibilities and authority and to
     override actions of Executive.

               (ii) Executive shall report to the Chief Executive Officer and/or
     the President of Employer and Executive shall devote her best efforts and
     her full business time and attention to the business and affairs of the
     Company, Employer and their Subsidiaries.

          (b) Salary, Bonus and Benefits. During the Employment Period, Employer
will pay Executive a base salary (the "Annual Base Salary") of $152,000 per
annum, subject to any increases as determined by the Board based upon the
Company's achievements of budgetary and other objectives set by the Board. For
any fiscal year, Executive shall be eligible for an annual bonus of up to 50% of
the Executive's then applicable Annual Base Salary based upon the achievement by
the Company, Employer and their Subsidiaries of budgetary and other objectives
set by the Board; provided that with respect to the first year for which
Executive is eligible for a bonus, such bonus shall be paid on a pro rata basis
based upon that portion of the year that remained after the date of this
Agreement. In addition, during the Employment Period, Executive will be entitled
to such other benefits approved by the Board and made available to the senior
management of the Company, Employer and their Subsidiaries.

          (c) Separation. The Employment Period will continue until Executive's
resignation, disability (as determined by the Board in its good faith judgment)
or death or until the Employer decides to terminate Executive's employment with
or without Cause. If Executive's employment is terminated by Employer without
Cause, during the six-month period commencing on the date of termination (the
"Initial Severance Period"), Employer shall pay to Executive each month during
the Initial Severance Period an aggregate amount equal to 1/12th of

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her Annual Base Salary in effect as of the end of the Employment Period, payable
in equal installments on the Employer's regular salary payment dates. Employer
may (in its sole discretion) elect to extend the Initial Severance Period for up
to three additional six-month periods (each an "Additional Severance Period") by
providing Executive written notice of such extension no less than 60 days prior
to the last day of the Initial Severance Period or the then effective Additional
Severance Period and paying Executive during each month of any such Additional
Severance Period an additional amount equal to 1/12th of her Annual Base Salary,
payable in equal installments on the Employer's regular salary payment dates.
(The Initial Severance Period and all applicable Additional Severance Periods
are collectively referred to herein as the "Severance Period"). The amounts
payable pursuant to this Section 6(c) shall be reduced by the amount of any
compensation Executive earns or receives with respect to any other employment
during the period in which she is receiving severance. Upon request from time to
time, Executive shall furnish Employer with a true and complete certificate
specifying any such compensation earned or received by him while receiving any
severance payments from Employer.

          7.   Confidential Information.

          (a) Obligation to Maintain Confidentiality. Executive acknowledges
that the information, observations and data obtained by him during the course of
her performance under this Agreement concerning the business and affairs of the
Company, Employer and their respective Subsidiaries and Affiliates are the
property of the Company, Employer or such Subsidiaries and Affiliates, including
information concerning acquisition opportunities in or reasonably related to the
Company's and Employer's and their respective Subsidiaries' business or industry
of which Executive becomes aware during the Employment Period. Therefore,
Executive agrees that she will not disclose to any unauthorized Person or use
for her own account any of such information, observations or data without the
Board's prior written consent, unless and to the extent that the aforementioned
matters become generally known to and available for use by the public other than
as a result of Executive's acts or omissions to act. Executive agrees to deliver
to the Company at a Separation, or at any other time the Company may request in
writing, all memoranda, notes, plans, records, reports and other documents (and
copies thereof) relating to the business of the Company, Employer and their
respective Subsidiaries and Affiliates (including, without limitation, all
acquisition prospects, lists and contact information) which she may then possess
or have under her control.

          (b) Ownership of Property. Executive acknowledges that all inventions,
innovations, improvements, developments, methods, processes, programs, designs,
analyses, drawings, reports, and all similar or related information (whether or
not patentable) that relate to the Company's, Employer's or any of their
respective Subsidiaries' or Affiliates' actual or anticipated business, research
and development, or existing or future products or services and that are
conceived, developed, contributed to, made, or reduced to practice by Executive
(either solely or jointly with others) while employed by the Company, Employer
or any of their respective Subsidiaries or Affiliates (including any of the
foregoing that constitutes any proprietary information or records) ("Work
Product") belong to the Company, Employer or such Subsidiary or Affiliate and
Executive hereby assigns, and agrees to assign, all of the above Work Product to
the Company, Employer or to such Subsidiary or Affiliate. Any copyrightable work
prepared in whole or in part by Executive in the course of her work for any of
the foregoing

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entities shall be deemed a "work made for hire" under the copyright laws, and
the Company, Employer or such Subsidiary or Affiliate shall own all rights
therein. To the extent that any such copyrightable work is not a "work made for
hire," Executive hereby assigns and agrees to assign to the Company, Employer or
such Subsidiary or Affiliate all right, title, and interest, including without
limitation, copyright in and to such copyrightable work. Executive shall
promptly disclose such Work Product and copyrightable work to the Board and
perform all actions reasonably requested by the Board (whether during or after
the Employment Period) to establish and confirm the Company's, Employer's or
such Subsidiary's or Affiliate's ownership (including, without limitation,
assignments, consents, powers of attorney, and other instruments).

          (c) Third Party Information. Executive understands that the Company,
Employer and their respective Subsidiaries and Affiliates will receive from
third parties confidential or proprietary information ("Third Party
Information") subject to a duty on the Company's, Employer's and their
respective Subsidiaries' and Affiliates' part to maintain the confidentiality of
such information and to use it only for certain limited purposes. During the
Employment Period and thereafter, and without in any way limiting the provisions
of Section 7(a) above, Executive will hold Third Party Information in the
strictest confidence and will not disclose to anyone (other than personnel of
the Company, Employer or their respective Subsidiaries or Affiliates who need to
know such information in connection with their work for the Company, Employer or
their respective Subsidiaries or Affiliates) or use, except in connection with
her work for the Company, Employer or their respective Subsidiaries or
Affiliates, Third Party Information unless expressly authorized by a member of
the Board in writing.

          (d) Use of Information of Prior Employers. During the Employment
Period, Executive will not improperly use or disclose any confidential
information or trade secrets, if any, of any former employers or any other
Person to whom Executive has an obligation of confidentiality, and will not
bring onto the premises of the Company, Employer or any of their respective
Subsidiaries or Affiliates any unpublished documents or any property belonging
to any former employer or any other Person to whom Executive has an obligation
of confidentiality unless consented to in writing by the former employer or
Person. Executive will use in the performance of her duties only information
which is (i) generally known and used by Persons with training and experience
comparable to Executive's and that is (x) common knowledge in the industry or
(y) is otherwise legally in the public domain, (ii) is otherwise provided or
developed by the Company, Employer or any of their respective Subsidiaries or
Affiliates or (iii) in the case of materials, property or information belonging
to any former employer or other Person to whom Executive has an obligation of
confidentiality, approved for such use in writing by such former employer or
Person.

          8. Noncompetition and Nonsolicitation. Executive acknowledges that in
the course of her employment with Employer she will become familiar with the
Company's, Employer's and their respective Subsidiaries' trade secrets and with
other confidential information concerning the Company, Employer and such
Subsidiaries and that her services will be of special, unique and extraordinary
value to the Company and Employer and such Subsidiaries. Therefore, Executive
agrees that:

          (a) Noncompetition. During the Employment Period and (i) in the event
of a

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termination of Executive's employment by Employer without Cause, the Severance
Period or (ii) in the event of a termination of Executive's employment for any
other reason, for a period of two years thereafter (collectively, the
"Noncompete Period"), she shall not, anywhere in the world, directly or
indirectly own, manage, control, participate in, consult with, render services
for, or in any manner engage in any business relating to the provision of
interoperability solutions, clearing and settlement services, software and
network services and related services to telecommunications companies and other
third parties that compete with the businesses of the Company, Employer or their
respective Subsidiaries or any business in which the Company, Employer or any of
their respective Subsidiaries has entertained discussions or has requested and
received information relating to the acquisition of such business by the
Company, Employer or their respective Subsidiaries prior to the Separation;
provided, however, that the Executive may own up to 1% of any class of an
issuer's publicly traded securities.

          (b) Nonsolicitation. During the Noncompete Period, Executive shall not
directly or indirectly through another entity (i) induce or attempt to induce
any employee of the Company, Employer or their respective Subsidiaries to leave
the employ of the Company, Employer or such Subsidiary, or in any way interfere
with the relationship between the Company, Employer and any of their respective
Subsidiaries and any employee thereof, (ii) hire any person who was an employee
of the Company, Employer or any of their respective Subsidiaries within one year
prior to the time such employee was hired by Executive, (iii) induce or attempt
to induce any customer, supplier, licensee or other business relation of the
Company, Employer or any of their respective Subsidiaries to cease doing
business with the Company, Employer or such Subsidiary or in any way interfere
with the relationship between any such customer, supplier, licensee or business
relation and the Company and any Subsidiary or (iv) directly or indirectly
acquire or attempt to acquire an interest in any business relating to the
business of the Company, Employer or any of their respective Subsidiaries and
with which the Company, Employer and any of their respective Subsidiaries has
entertained discussions or has requested and received information relating to
the acquisition of such business by the Company, Employer or any of their
respective Subsidiaries in the two-year period immediately preceding a
Separation.

          (c) Enforcement. If, at the time of enforcement of Section 7 or this
Section 8, a court holds that the restrictions stated herein are unreasonable
under circumstances then existing, the parties hereto agree that the maximum
duration, scope or geographical area reasonable under such circumstances shall
be substituted for the stated period, scope or area and that the court shall be
allowed to revise the restrictions contained herein to cover the maximum
duration, scope and area permitted by law. Because Executive's services are
unique and because Executive has access to confidential information, the parties
hereto agree that money damages would be an inadequate remedy for any breach of
this Agreement. Therefore, in the event a breach or threatened breach of this
Agreement, the Company, Employer, their respective Subsidiaries or Affiliates or
their successors or assigns may, in addition to other rights and remedies
existing in their favor, apply to any court of competent jurisdiction for
specific performance and/or injunctive or other relief in order to enforce, or
prevent any violations of, the provisions hereof (without posting a bond or
other security).

          (d) Additional Acknowledgments. Executive acknowledges that the
provisions of this Section 8 are in consideration of: (i) employment with the
Employer, (ii) the

                                       10

<PAGE>

issuance of the Carried Units by the Company and (iii) additional good and
valuable consideration as set forth in this Agreement. In addition, Executive
agrees and acknowledges that the restrictions contained in Section 7 and this
Section 8 do not preclude Executive from earning a livelihood, nor do they
unreasonably impose limitations on Executive's ability to earn a living. In
addition, Executive acknowledges (i) that the business of the Company, Employer
and their respective Subsidiaries will be international in scope and without
geographical limitation, (ii) notwithstanding the state of incorporation or
principal office of the Company, Employer or any of their respective
Subsidiaries, or any of their respective executives or employees (including the
Executive), it is expected that the Company and Employer will have business
activities and have valuable business relationships within its industry
throughout the world, and (iii) as part of her responsibilities, Executive will
be traveling in furtherance of Employer's business and its relationships.
Executive agrees and acknowledges that the potential harm to the Company and
Employer and their respective Subsidiaries of the non-enforcement of Section 7
and this Section 8 outweighs any potential harm to Executive of its enforcement
by injunction or otherwise. Executive acknowledges that she has carefully read
this Agreement and has given careful consideration to the restraints imposed
upon Executive by this Agreement, and is in full accord as to their necessity
for the reasonable and proper protection of confidential and proprietary
information of the Company and Employer now existing or to be developed in the
future. Executive expressly acknowledges and agrees that each and every
restraint imposed by this Agreement is reasonable with respect to subject
matter, time period and geographical area.

                               GENERAL PROVISIONS

          9.   Definitions.

          "Affiliate" means, (i) with respect to any Person, any Person that
controls, is controlled by or is under common control with such Person or an
Affiliate of such Person, and (ii) with respect to any Investor, any general or
limited partner of such Investor, any employee or owner of any such partner, or
any other Person controlling, controlled by or under common control with such
Investor.

          "Board" means the Board of Managers of the Company.

          "Class A Preferred" means the Class A Preferred Units as defined in
the LLC Agreement.

          "Carried Units" will continue to be Carried Units in the hands of any
holder other than Executive (except for the Company and the Investors and except
for transferees in a Public Sale), and except as otherwise provided herein, each
such other holder of Carried Units will succeed to all rights and obligations
attributable to Executive as a holder of Carried Units hereunder. Carried Units
will also include equity of the Company (or a corporate successor to the
Company) issued with respect to Carried Units (i) by way of a unit split, unit
dividend, conversion, or other recapitalization (excluding any Class A Preferred
issued herein) or (ii) by way of reorganization or recapitalization of the
Company in connection with the incorporation of a corporate successor prior to a
Public Offering. Notwithstanding the foregoing, all Unvested Units shall remain
Unvested Units after any Transfer thereof.

                                       11

<PAGE>

          "Cause" means (i) the commission of a felony or a crime involving
moral turpitude or the commission of any other act or omission involving
dishonesty or fraud with respect to the Company, Employer or any of their
respective Subsidiaries or any of their customers or suppliers, (ii) conduct
tending to bring the Company, Employer or any of their respective Subsidiaries
into substantial public disgrace or disrepute, (iii) substantial and repeated
failure to perform duties of the office held by Executive as reasonably directed
by the Board, (iv) gross negligence or willful misconduct with respect to the
Company, Employer or any of their respective Subsidiaries or (v) any breach of
Sections 6(a)(ii), 7 or 8 of this Agreement.

          "Fair Market Value" of Carried Units means the average of the closing
prices of the sales of such Carried Units on all securities exchanges on which
such Carried Units may at the time be listed, or, if there have been no sales on
any such exchange on any day, the average of the highest bid and lowest asked
prices on all such exchanges at the end of such day, or, if on any day such
Carried Units is not so listed, the average of the representative bid and asked
prices quoted in the NASDAQ System as of 4:00 P.M., New York time, or, if on any
day such Carried Units are not quoted in the NASDAQ System, the average of the
highest bid and lowest asked prices on such day in the domestic over-the-counter
market as reported by the National Quotation Bureau Incorporated, or any similar
successor organization, in each such case averaged over a period of 21 days
consisting of the day as of which the Fair Market Value is being determined and
the 20 consecutive business days prior to such day. If at any time such Carried
Units are not listed on any securities exchange or quoted in the NASDAQ System
or the over-the-counter market, the Fair Market Value will be the fair value of
such Carried Units as determined in good faith by the Board. If Executive
reasonably disagrees with such determination, Executive shall deliver to the
Board a written notice of objection within ten days after delivery of a
Repurchase Notice (or if no Repurchase Notice is delivered, then within ten days
after delivery of the Supplemental Repurchase Notice). Upon receipt of
Executive's written notice of objection, the Board and Executive will negotiate
in good faith to agree on such Fair Market Value. If such agreement is not
reached within 30 days after the delivery of the Repurchase Notice (or if no
Repurchase Notice is delivered, then within 30 days after the delivery of the
Supplemental Repurchase Notice), Fair Market Value shall be determined by an
appraiser jointly selected by the Board and Executive, which appraiser shall
submit to the Board and Executive a report within 30 days of its engagement
setting forth such determination. If the parties are unable to agree on an
appraiser within 45 days after delivery of the Repurchase Notice or the
Supplemental Repurchase Notice, within seven days, each party shall submit the
names of four nationally recognized firms that are engaged in the business of
valuing non-public securities, and each party shall be entitled to strike two
names from the other party's list of firms, and the appraiser shall be selected
by lot from the remaining four firms. The expenses of such appraiser shall be
borne by Executive unless the appraiser's valuation is more than 10% greater
than the amount determined by the Board, in which case, the expenses of the
appraiser shall be borne by the Company. The determination of such appraiser as
to Fair Market Value shall be final and binding upon all parties.

          "Family Group" means, with respect to a Person who is an individual,
such Person's spouse and descendants (whether natural or adopted), and any
trust, family limited partnership, limited liability company or other entity
wholly owned, directly or indirectly, by such Person or such Person's spouse
and/or descendants that is and remains solely for the benefit

                                       12

<PAGE>

of such Person and/or such Person's spouse and/or descendants and any retirement
plan for such Person.

          "GAAP" means United States generally accepted accounting principles as
in effect from time to time.

          "LLC Agreement" means the Limited Liability Company Agreement of the
Company, as amended from time to time pursuant to its terms.

          "Original Cost" means, with respect to each Common Unit purchased
hereunder, $0.0333 (as proportionately adjusted for all subsequent unit splits,
unit dividends and other recapitalizations).

          "Person" means an individual, a partnership, a limited liability
company, a corporation, an association, a joint stock company, a trust, a joint
venture, an unincorporated organization, investment fund, any other business
entity and a governmental entity or any department, agency or political
subdivision thereof.

          "Public Offering" means the sale in an underwritten public offering
registered under the Securities Act of equity securities of the Company or a
corporate successor to the Company.

          "Public Sale" means (i) any sale pursuant to a registered public
offering under the Securities Act or (ii) any sale to the public pursuant to
Rule 144 promulgated under the Securities Act effected through a broker, dealer
or market maker (other than pursuant to Rule 144(k) prior to a Public Offering).

          "Quarter Date" means February, May, August and November of each year
beginning on May 14, 2003 and ending on February 14, 2008.

          "Sale of the Company" means any transaction or series of transactions
pursuant to which any Person or group of related Persons other than the
Investors or their Affiliates in the aggregate acquire(s) (i) equity securities
of the Company possessing the voting power (other than voting rights accruing
only in the event of a default, breach or event of noncompliance) to elect a
majority of the Company's board of managers (whether by merger, consolidation,
reorganization, combination, sale or transfer of the Company's equity,
securityholder or voting agreement, proxy, power of attorney or otherwise) or
(ii) all or substantially all of the Company's assets determined on a
consolidated basis; provided that a Public Offering shall not constitute a Sale
of the Company.

          "Securities Act" means the Securities Act of 1933, as amended from
time to time.

          "Securityholders Agreement" means the Securityholders Agreement of
even date herewith among the Company and certain of its securityholders, as
amended from time to time pursuant to its terms.

          "Subsidiary" means, with respect to any Person, any corporation,
limited liability company, partnership, association, or business entity of which
(i) if a corporation, a majority of

                                       13

<PAGE>

the total voting power of shares of stock entitled (without regard to the
occurrence of any contingency) to vote in the election of directors, managers,
or trustees thereof is at the time owned or controlled, directly or indirectly,
by that Person or one or more of the other Subsidiaries of that Person or a
combination thereof, or (ii) if a limited liability company, partnership,
association, or other business entity (other than a corporation), a majority of
partnership or other similar ownership interest thereof is at the time owned or
controlled, directly or indirectly, by that Person or one or more Subsidiaries
of that Person or a combination thereof. For purposes hereof, a Person or
Persons shall be deemed to have a majority ownership interest in a limited
liability company, partnership, association, or other business entity (other
than a corporation) if such Person or Persons shall be allocated a majority of
limited liability company, partnership, association, or other business entity
gains or losses or shall be or control any managing director or general partner
of such limited liability company, partnership, association, or other business
entity. For purposes hereof, references to a "Subsidiary" of any Person shall be
given effect only at such times that such Person has one or more Subsidiaries,
and, unless otherwise indicated, the term "Subsidiary" refers to a Subsidiary of
the Company.

          "Transfer" means to sell, transfer, assign, pledge or otherwise
dispose of (whether with or without consideration and whether voluntarily or
involuntarily or by operation of law).

          10. Notices. Any notice provided for in this Agreement must be in
writing and must be either personally delivered, mailed by first class mail
(postage prepaid and return receipt requested) or sent by reputable overnight
courier service (charges prepaid) to the recipient at the address below
indicated:

          If to Employer:

               TSI Merger Sub, Inc.
               201 North Franklin Street
               Tampa, Florida 33602
               Attention: Robert Garcia, Jr.

               with copies to:

               GTCR Fund VII, L.P.
               GTCR Fund VII/A, L.P.
               GTCR Co-Invest, L.P.
               c/o GTCR Golder Rauner, L.L.C.
               6100 Sears Tower
               Chicago, Illinois 60606-6402
               Attention: David A. Donnini
                          Collin E. Roche

               and

               Kirkland & Ellis
               200 East Randolph Drive

                                       14

<PAGE>

               Chicago, Illinois 60601
               Attention: Stephen L. Ritchie

          If to the Company:

               TSI Telecommunication
               Holdings, LLC
               201 North Franklin Street
               Tampa, Florida 33602
               Attention: Robert Garcia, Jr.

               with copies to:

               GTCR Fund VII, L.P.
               GTCR Fund VII/A, L.P.
               GTCR Co-Invest, L.P.
               c/o GTCR Golder Rauner, L.L.C.
               6100 Sears Tower
               Chicago, Illinois 60606-6402
               Attention: David A. Donnini
                          Collin E. Roche

               and

               Kirkland & Ellis
               200 East Randolph Drive
               Chicago, Illinois 60601
               Attention: Stephen L. Ritchie

          If to Executive:

               Linda Hermansen
               5840 Audobon Manor Blvd.
               Lithia, Florida 33547

          If to the Investors:

               GTCR Fund VII, L.P.
               GTCR Fund VII/A, L.P.
               GTCR Co-Invest, L.P.
               c/o GTCR Golder Rauner, L.L.C.
               6100 Sears Tower
               Chicago, Illinois 60606-6402
               Attention: David A. Donnini

                                       15

<PAGE>

                             Collin E. Roche

               with a copy to:

               Kirkland & Ellis
               200 East Randolph Drive
               Chicago, Illinois 60601
               Attention: Stephen L. Ritchie

or such other address or to the attention of such other person as the recipient
party shall have specified by prior written notice to the sending party. Any
notice under this Agreement will be deemed to have been given when so delivered
or sent or, if mailed, five days after deposit in the U.S. mail.

          11.  General Provisions.

          (a) Transfers in Violation of Agreement. Any Transfer or attempted
Transfer of any Carried Units in violation of any provision of this Agreement
shall be void, and the Company shall not record such Transfer on its books or
treat any purported transferee of such Carried Units as the owner of such equity
for any purpose.

          (b) Severability. Whenever possible, each provision of this Agreement
will be interpreted in such manner as to be effective and valid under applicable
law, but if any provision of this Agreement is held to be invalid, illegal or
unenforceable in any respect under any applicable law or rule in any
jurisdiction, such invalidity, illegality or unenforceability will not affect
any other provision or any other jurisdiction, but this Agreement will be
reformed, construed and enforced in such jurisdiction as if such invalid,
illegal or unenforceable provision had never been contained herein.

          (c) Complete Agreement. This Agreement, those documents expressly
referred to herein and other documents of even date herewith embody the complete
agreement and understanding among the parties and supersede and preempt any
prior understandings, agreements or representations by or among the parties,
written or oral, which may have related to the subject matter hereof in any way.

          (d) Counterparts. This Agreement may be executed in separate
counterparts (including by means of facsimile), each of which is deemed to be an
original and all of which taken together constitute one and the same agreement.

          (e) Successors and Assigns. Except as otherwise provided herein, this
Agreement shall bind and inure to the benefit of and be enforceable by
Executive, the Company, the Employer, the Investors and their respective
successors and assigns (including subsequent holders of Carried Units); provided
that the rights and obligations of Executive under this Agreement shall not be
assignable except in connection with a permitted transfer of Carried Units
hereunder.

          (f) Choice of Law. The limited liability company law of the State of

                                       16

<PAGE>

Delaware will govern all questions concerning the relative rights of the Company
and its securityholders. All other questions concerning the construction,
validity and interpretation of this Agreement and the exhibits hereto will be
governed by and construed in accordance with the internal laws of the State of
Delaware, without giving effect to any choice of law or conflict of law
provision or rule (whether of the State of Delaware or any other jurisdiction)
that would cause the application of the laws of any jurisdiction other than the
State of Delaware.

          (g) Remedies. Each of the parties to this Agreement (including the
Investors as third-party beneficiaries) will be entitled to enforce its rights
under this Agreement specifically, to recover damages and costs (including
attorney's fees) caused by any breach of any provision of this Agreement and to
exercise all other rights existing in its favor. The parties hereto agree and
acknowledge that money damages may not be an adequate remedy for any breach of
the provisions of this Agreement and that any party may in its sole discretion
apply to any court of law or equity of competent jurisdiction (without posting
any bond or deposit) for specific performance and/or other injunctive relief in
order to enforce or prevent any violations of the provisions of this Agreement.

          (h) Amendment and Waiver. The provisions of this Agreement may be
amended and waived only with the prior written consent of the Company, Employer,
Executive and the Majority Holders (as defined in the Purchase Agreement).

          (i) Insurance. The Company or Employer, at its discretion, may apply
for and procure in its own name and for its own benefit life and/or disability
insurance on Executive in any amount or amounts considered available. Executive
agrees to cooperate in any medical or other examination, supply any information,
and to execute and deliver any applications or other instruments in writing as
may be reasonably necessary to obtain and constitute such insurance. Executive
hereby represents that she has no reason to believe that her life is not
insurable at rates now prevailing for healthy men of her age.

          (j) Business Days. If any time period for giving notice or taking
action hereunder expires on a day which is a Saturday, Sunday or holiday in the
state in which the Company's chief executive office is located, the time period
shall be automatically extended to the business day immediately following such
Saturday, Sunday or holiday.

          (k) Indemnification and Reimbursement of Payments on Behalf of
Executive. The Company, Employer and their respective Subsidiaries shall be
entitled to deduct or withhold from any amounts owing from the Company or any of
its Subsidiaries to Executive any federal, state, local or foreign withholding
taxes, excise taxes, or employment taxes ("Taxes") imposed with respect to
Executive's compensation or other payments from the Company or any of its
Subsidiaries or Executive's ownership interest in the Company, including,
without limitation, wages, bonuses, dividends, the receipt or exercise of equity
options and/or the receipt or vesting of restricted equity. In the event the
Company or its Subsidiaries does not make such deductions or withholdings,
Executive shall indemnify the Company and its Subsidiaries for any amounts paid
with respect to any such Taxes, together with any interest, penalties and
related expenses thereto.

          (l) Reasonable Expenses. The Company agrees to pay the reasonable fees

                                       17

<PAGE>

and expenses of Executive's counsel arising in connection with the negotiation
and execution of this Agreement and the consummation of the transactions
contemplated by this Agreement.

          (m) Termination. This Agreement (except for the provisions of Sections
6(a) and (b)) shall survive a Separation and shall remain in full force and
effect after such Separation.

          (n) Adjustments of Numbers. All numbers set forth herein that refer to
unit prices or amounts will be appropriately adjusted to reflect unit splits,
unit dividends, combinations of units and other recapitalizations affecting the
subject class of equity.

          (o) Deemed Transfer of Carried Units. If the Company (and/or the
Investors and/or any other Person acquiring securities) shall make available, at
the time and place and in the amount and form provided in this Agreement, the
consideration for the Carried Units to be repurchased in accordance with the
provisions of this Agreement, then from and after such time, the Person from
whom such units are to be repurchased shall no longer have any rights as a
holder of such units (other than the right to receive payment of such
consideration in accordance with this Agreement), and such units shall be deemed
purchased in accordance with the applicable provisions hereof and the Company
(and/or the Investors and/or any other Person acquiring securities) shall be
deemed the owner and holder of such units, whether or not the certificates
therefor have been delivered as required by this Agreement.

          (p) No Pledge or Security Interest. The purpose of the Company's
retention of Executive's certificates and executed security powers is solely to
facilitate the repurchase provisions set forth in Section 3 herein and Section 6
of the Securityholders Agreement and does not constitute a pledge by Executive
of, or the granting of a security interest in, the underlying equity.

          (q) Rights Granted to GTCR Fund VII and its Affiliates. Any rights
granted to GTCR Fund VII, GTCR Fund VII/A, GTCR Co-Invest and their Affiliates
hereunder may also be exercised (in whole or in part) by their respective
designees (which designees may be Affiliates of GTCR Fund VII, GTCR Fund VII/A
and/or GTCR Co-Invest).

                                    * * * * *

                                       18

<PAGE>

          IN WITNESS WHEREOF, the parties hereto have executed this Senior
Management Agreement on the date first written above.

                                     TSI TELECOMMUNICATION HOLDINGS, LLC


                                     By:  /s/ G. Edward Evan
                                          --------------------------------------
                                     Its: Chief Executive Officer


                                     TSI TELECOMMUNICATION SERVICES INC.


                                     By:  /s/ G. Edward Evan
                                          --------------------------------------
                                     Its: Chief Executive Officer


                                          /s/ Linda Hermansen
                                          --------------------------------------
                                          Linda Hermansen

                                       19

<PAGE>

Agreed and Accepted:

GTCR FUND VII, L.P.


By:  GTCR Partners VII, L.P.
Its: General Partner


By:  GTCR Golder Rauner, L.L.C.
Its: General Partner


By: /s/ Collin Roche
    ------------------------------------
Name: Collin Roche
Its:  Principal


GTCR FUND VII/A, L.P.

By:  GTCR Partners VII, L.P.
Its: General Partner


By:  GTCR Golder Rauner, L.L.C.
Its: General Partner


By: /s/ Collin Roche
    ---------------------------------
Name: Collin Roche
Its:  Principal


GTCR CO-INVEST, L.P.


By:  GTCR Golder Rauner, L.L.C.
Its: General Partner


By: /s/ Collin Roche
    ---------------------------------
Name: Collin Roche
Its:  Principal

                                       20

<PAGE>

                                                                       EXHIBIT A

                                                               February 14, 2003

                    PROTECTIVE ELECTION TO INCLUDE MEMBERSHIP
                      INTEREST IN GROSS INCOME PURSUANT TO
                   SECTION 83(b) OF THE INTERNAL REVENUE CODE

          On February 14, 2003 (the "Closing Date"), the undersigned acquired a
limited liability company membership interest in the form of 270,270.27 Common
Units (the "Common Units") in TSI Telecommunication Holdings, LLC, a Delaware
limited liability company (the "Company"), for an aggregate purchase price of
$9,000.00. Pursuant to the Limited Liability Company Agreement of the Company,
the undersigned is entitled to an interest in Company capital exactly equal to
the amount paid therefore and an interest in Company profits.

          Based on current Treasury Regulation (S)1.721-1(b), Proposed Treasury
Regulation (S)1.721-1(b)(1), and Revenue Procedures 93-27 and 2001-43, the
undersigned does not believe that issuance of the Common Units to the
undersigned is subject to the provisions of (S)83 of the Internal Revenue Code
(the "Code"). In the event that the sale is so treated, however, the undersigned
desires to make an election to have the receipt of the Common Units taxed under
the provisions of Code (S)83(b) at the time the undersigned acquired the Common
Units.

          Therefore, pursuant to Code (S)83(b) and Treasury Regulation (S)
1.83-2 promulgated thereunder, the undersigned hereby makes an election, with
respect to the Common Units, to report as taxable income for the calendar year
2003 the excess (if any) of the value of the Common Units on the Closing Date
over the purchase price thereof.

          The following information is supplied in accordance with Treasury
Regulation (S)1.83-2(e):

1.   The name, address and social security number of the undersigned:

                         Linda Hermansen
                         5840 Audobon Manor Blvd.
                         Lithia, Florida 33547
                         SSN: ###-##-####

2.   A description of the property with respect to which the election is being
     made: The Common Units entitling the undersigned to an interest in the
     Company's capital exactly equal to the amount paid and an interest in the
     Company's profits.

3.   The date on which the Common Units were transferred: February   , 2003. The
                                                                   --
     taxable year for which such election is made: calendar year 2003.

<PAGE>

4.   The restrictions to which the property is subject: If during the first five
     years after February 14, 2003 (the "Employment Date"), the undersigned
     ceases to be employed by the Company or any of its subsidiaries, the
     unvested portion of the Common Units will be subject to repurchase by the
     Company at cost. 5% of the Common Units become vested units on the last day
     of each three-month period after the Employment Date.

5.   The fair market value on February 14, 2003 of the property with respect to
     which the election is being made, determined without regard to any lapse
     restrictions and in accordance with Revenue Procedure 93-27: $9,000.00.

6.   The amount paid or to be paid for such property: $9,000.00.

                                    * * * * *

                                       22

<PAGE>

          A copy of this election is being furnished to the Company pursuant to
Treasury Regulation (S) 1.83-2(e)(7). A copy of this election will be submitted
with the 2003 federal income tax return of the undersigned pursuant to Treasury
Regulation (S) 1.83-2(c).


Dated: February 14, 2003                  /s/ Linda Hermansen
                                          --------------------------------------
                                          Linda Hermansen

<PAGE>

                                                                       EXHIBIT B

                      ASSIGNMENT SEPARATE FROM CERTIFICATE

          FOR VALUE RECEIVED,             does hereby sell, assign and transfer
                              -----------
unto                , a                  ,                       of TSI
     ---------------    -----------------  -------- ------------
Telecommunication Holdings, LLC, a Delaware limited liability company (the
"Company"), standing in the undersigned's name on the books of the Company
represented by Certificate Nos.                   herewith and does hereby
                                -----------------
irrevocably constitute and appoint each principal of GTCR Golder Rauner, L.L.C.
(acting alone or with one or more other such principals) as attorney to transfer
the said securities on the books of the Company with full power of substitution
in the premises.

Dated:
      ------------------                  --------------------------------------
                                          Linda Hermansen

<PAGE>

                                                                       EXHIBIT C

                              LLC JOINDER AGREEMENT

          This joinder agreement is being delivered to TSI Telecommunication
Holdings, LLC, a Delaware limited liability company (the "Company"), in
connection with that certain Limited Liability Company Agreement, dated as of
February 14, 2002 (as amended from time to time, the "LLC Agreement"), among the
Company and certain other Unitholders of the Company who are from time to time
party thereto. Capitalized terms used herein shall have the meanings assigned to
such terms in the LLC Agreement.

          The undersigned has purchased 270,270.27 Common Units of the Company
pursuant to a Senior Management Agreement dated February 14, 2003 (the
"Purchase").

          In connection with the Purchase, and as a condition thereto, the
undersigned hereby agrees to become a party to the LLC Agreement (as a
"Unitholder" and a "Common Unitholder" thereunder) and agrees to be bound by the
provisions of the LLC Agreement.

Date: February 14, 2003


/s/ Linda Hermansen
--------------------------------------------
Linda Hermansen


Acknowledged and Agreed:
TSI Telecommunication Holdings, LLC


/s/ G. Edward Evans
--------------------------------------------
G. Edward Evans, its Chief Executive Officer

<PAGE>

                        SECURITYHOLDERS JOINDER AGREEMENT

          This joinder agreement is being delivered to TSI Telecommunication
Holdings, LLC, a Delaware limited liability company (the "Company"), in
connection with that certain Securityholders Agreement, dated as of February 14,
2002 (as amended from time to time, the "Securityholders Agreement"), among the
Company and certain other Securityholders of the Company who are from time to
time party thereto. Capitalized terms used herein shall have the meanings
assigned to such terms in the Securityholders Agreement.

          The undersigned has purchased 270,270.27 Common Units of the Company
pursuant to a Senior Management Agreement dated February 14, 2003 (the
"Purchase").

          In connection with the Purchase, and as a condition thereto, the
undersigned hereby agrees to become a party to the Securityholders Agreement (as
a "Securityholder" and an "Executive" thereunder) and agrees to be bound by the
provisions of the Securityholders Agreement.

Date: February 14, 2003


/s/ Linda Hermansen
--------------------------------------------
Linda Hermansen


Acknowledged and Agreed:
TSI Telecommunication Holdings, LLC


/s/ G. Edward Evans
--------------------------------------------
G. Edward Evans, its Chief Executive Officer

<PAGE>

                         REGISTRATION JOINDER AGREEMENT

          This joinder agreement is being delivered to TSI Telecommunication
Holdings, LLC, a Delaware limited liability company (the "Company"), in
connection with that certain Registration Agreement, dated as of February 14,
2002 (as amended from time to time, the "Registration Agreement"), among the
Company and certain other Securityholders of the Company who are from time to
time party thereto. Capitalized terms used herein shall have the meanings
assigned to such terms in the Registration Agreement.

          The undersigned has purchased 270,270.27 Common Units of the Company
pursuant to a Senior Management Agreement dated February 14, 2003 (the
"Purchase").

          In connection with the Purchase, and as a condition thereto, the
undersigned hereby agrees to become a party to the Registration Agreement (as an
"Executive" thereunder) and agrees to be bound by the provisions of the
Registration Agreement.

Date: February 14, 2003


/s/ Linda Hermansen
--------------------------------------------
Linda Hermansen


Acknowledged and Agreed:
TSI Telecommunication Holdings, LLC


/s/ G. Edward Evans
--------------------------------------------
G. Edward Evans, its Chief Executive Officer