Document:

exv10w21

 

Exhibit 10.21

December 20, 2005

Mr. David D. Clark

501 Contention Lane

Berwyn, PA 19312

Dear Mr. Clark:

     You previously entered into an employment agreement with SunCom Wireless Management Company,
Inc. (f/k/a Triton Management Company, Inc.) (the “Company”) and its parent, SunCom Wireless
Holdings, Inc. (f/k/a Triton PCS Holdings, Inc.) (“SunCom”), dated May 24, 2001 to be effective as
of January 1, 2000 (the “Original Employment Agreement”) and thereafter amended by a certain Letter
Agreement (the “2003 Letter Agreement”) dated May 6, 2003 and a certain Letter Agreement (the “2005
Letter Agreement”) dated December 2, 2005. The Original Employment Agreement as amended by the
2003 Letter Agreement and 2005 Letter Agreement is referred to herein as the “Existing Employment
Agreement”.

     The Existing Employment Agreement’s current term of three (3) years is scheduled to expire on
February 3, 2006 and was scheduled to automatically extend for a one-year renewal term in the
absence of either party providing a notice of nonrenewal prior to the close of business today. You
and the Company have decided not to renew your employment agreement and instead, you, the Company
and SunCom have mutually determined to terminate your employment with the Company.

     In light of your past services as their Chief Financial Officer, SunCom and the Company hereby
agree pursuant to this letter agreement (this “Agreement”) to the following terms and conditions of
your separation from employment:

     1. Separation. As of the date of this Agreement, you will cease to serve as Chief
Financial Officer, Executive Vice President and Secretary of the Company. You will resign your
employment with the Company effective as of February 3, 2006 (the “Separation Date”). From the
date of this Agreement through your Separation Date, you will assist the interim Chief Financial
Officer in assuming his duties for the Company and perform such other services consistent with your
transition as may be reasonably directed by the Chief Executive Officer and during such time you
will continue to be subject to applicable policies of SunCom and the Company. As of the Separation
Date, you will cease to be an officer of SunCom, the Company and their subsidiaries and affiliates,
as applicable. The Company will provide you with a reasonable opportunity to review and comment on
any announcement or press release relating to your separation from employment. However, the terms
of any announcement, press release or other disclosure that may be required under applicable
Securities and Exchange Commission rules and regulations shall be determined by the Company in its
sole discretion.

     2. Severance Pay. In connection with your separation, the Company will pay or provide
the compensation set forth in this Section. All payments made in accordance with this Section
shall be subject to applicable withholding. To the extent any payments provided under

 

 

Mr. David D. Clark

December 20, 2005

Page 2

the terms of this Agreement are considered “deferred compensation” subject to the provisions
of Section 409A of the Internal Revenue Code, it is the intent of the parties that these payments
comply with Section 409A and the following should be interpreted accordingly.

          (a) The Company will pay to you all base salary earned but unpaid as of your Separation Date
together with an amount equal to the value of your accrued but unpaid vacation as of such date. In
addition, the Company will pay you your annual bonus earned for 2005 of two hundred fifty eight
thousand five hundred dollars ($258,500). You will also be reimbursed for any unreimbursed
business expenses in accordance with the Company’s standard policies and procedures. Your bonus
payment will be made on or about January 15, 2006 and the remainder of the amounts described in
this Section 2(a) shall be paid in a single lump-sum within ten (10) days following the Separation
Date.

          (b) In addition to the foregoing, the Company will pay you an amount of Two Hundred
Fifty-Eight Thousand Five Hundred Dollars ($258,500) representing one-year’s base salary. One half
of such amount, one hundred twenty nine thousand two hundred and fifty dollars ($129,250), shall be
paid in a single lump-sum on or shortly after August 3, 2006. The remaining one hundred twenty
nine thousand two hundred and fifty dollars ($129,250) shall be paid in the equal biweekly
installments during the six-month period beginning on August 3, 2006 and shall be paid on such
dates and in such manner as consistent with SunCom’s normal payroll practices for its executives.

          (c) With respect to all outstanding awards of restricted stock under SunCom’s Stock and
Incentive Plan or similar equity incentive arrangement, as of your Separation Date the vested
portion of those awards will be determined as if you had continued to provide services to SunCom
and the Company through and including May 1, 2006 such that as of your Separation Date, you will be
vested in such additional SunCom shares as identified on Schedule A attached hereto.
SunCom and the Company shall take such actions as may be necessary to provide for the acceleration
of vesting as described herein. Any portion of any award that is not vested as of your Separation
Date shall be forfeited in accordance with the terms of your awards.

          (d) You shall be entitled to retain the property of SunCom identified on the Schedule
B attached hereto; provided however, that prior to your Separation Date, you agree to provide
the Company with access to such property for the purpose of removal of any software installed under
a license with the Company, any confidential information of the Company, or any other property of
the Company located within or accessible by such devices. In addition, the Company will continue
your phone service on the terms and conditions in effect as of the date of this Agreement through
the first day of the month following your Separation Date and thereafter, you will be solely
responsible for any costs, fees or expenses associated with such service.

          (e) During the period from the Separation Date until February 2, 2007, you will be entitled to
continue to participate in SunCom’s health care insurance and benefits plans in the same manner
(including, but not limited to applicable employee contributions, copayments, and deductibles) as
before your Separation Date, subject to such changes as may be made for other executives of SunCom
on or after that date. Any contributions required from you to maintain coverage during the period
following your Separation Date shall be deducted from the

 

 

Mr. David D. Clark

December 20, 2005

Page 3

payments scheduled to be made under Section 2(b) above. Following such twelve-month
period, you will be entitled to continue your health care coverage as may otherwise be permitted
under “COBRA” as such coverage is required under Internal Revenue Code Section 4980B. In addition
to the health insurance coverage described above, you will be eligible to receive benefits under
retirement and other welfare benefit plans maintained by the Company in accordance with the terms
of such plans as in effect on your Retirement Date.

          (f) The Company will provide you with the services of a nationally-recognized outplacement
consulting firm mutually agreed to by you and Company during the nine-month period following the
Separation Date; provided that the cost to the Company in connection therewith shall not exceed
$25,000. Any payments under the terms of this subsection shall be made by the Company directly to
the outplacement consulting firm.

     3. Benefits upon Termination under Existing Employment Agreement. You acknowledge and
agree that the payments and benefits to be provided to you under Section 2 above shall be
in lieu of and discharge any obligations of the Company and/or SunCom to you under the Existing
Employment Agreement for any further compensation, unused vacation, severance pay, or any other
expectations of remuneration or benefit; provided that you will remain entitled to receive the
tax-related services described in Section 4(b) of the Existing Employment Agreement for tax year
2005; provided further that such tax-related services are used within the nine-month period
following your Separation Date.

     4. Cooperation. You agree, upon reasonable request, to provide to SunCom and the
Company and its parent companies, subsidiaries and affiliates truthful and complete cooperation in
any matters arising out of or related to your activities while employed by the Company, whether or
not such matters have been commenced as of your Separation Date, including, without limitation, any
litigation or arbitration or any financial or accounting related matters. The Company shall use
commercially reasonable efforts to schedule any services requested under this Section 4 at
such times and locations as shall not unreasonably interfere with your business or personal
affairs. You agree that you will provide up to a maximum of forty-eight (48) hours of additional
services following your Separation Date under this Section 4 without any additional payment
or remuneration for such services (other than reimbursement for expenses as provided herein). In
the event that you provide additional services in excess of the foregoing limitation, you shall be
entitled to payment for such additional services at the rate of One Thousand Dollars ($1,000) for
each full day (eight hours or more) of service and Five Hundred Dollars ($500) for each half-day
(less than eight hours) of service. You will be entitled to reimbursement for the out-of-pocket
expenses you reasonably incur in connection with providing services as provided in this Section
4.

     5. Release. As a material inducement to SunCom and the Company to enter into this
Agreement and in consideration for the payments contained herein, you, on behalf of yourself, your
heirs, executors, administrators and assigns, and all persons acting by, through, under or in
concert with any of them (collectively, the “Executive Parties”), hereby irrevocably and
unconditionally release SunCom, the Company and their current, former and future parent companies,
subsidiaries and affiliates, together with all of their current, former and future employees,
directors, partners, members, shareholders, officers, agents, attorneys,

 

 

Mr. David D. Clark

December 20, 2005

Page 4

representatives, predecessors, successors, related entities, assigns, and the like, and all
persons acting by, through, under or in concert with any of them (collectively, the “SunCom
Parties”) from any and all charges, complaints, claims, liabilities, obligations, promises,
agreements, controversies, damages or causes of action, suits, rights, demands, costs, losses,
debts and expenses (including attorneys’ fees and costs incurred) of any nature whatsoever, known
or unknown, suspected or unsuspected, including, but not limited to, any such claims arising out of
or related to your service as an officer and director of SunCom and its affiliates or your
employment with the Company or the ending of that employment including, but not limited to: rights
under federal, state or local laws prohibiting discrimination, including, without limitation,
discrimination on the basis of age as prohibited by the Age Discrimination in Employment Act, which
as of the date you sign this Agreement, you have, own, or hold or claim to have, own or hold, or
which you at any time prior thereto, had owned or held, or claimed to have had, owned or held
against the SunCom Parties (an “Executive Claim”), but excluding:

          (a) Claims by you for vested retirement plan benefits under the Company’s tax-qualified
retirement plan;

          (b) Claims for any of the payments or benefits to be provided hereunder or those relating to
SunCom’s or the Company’s breach hereof;

          (c) Claims for benefits under any insured group health plan maintained by the Company,
including any right to continuation coverage under COBRA;

          (d) Claims for indemnification under the terms of Section 4(d) of the Existing Employment
Agreement;

          (e) Claims under any liability insurance policy maintained in accordance with Section 4(e) of
the Employment Agreement; or

          (f) Claims by you for indemnification to the extent that SunCom or the Company has provided
such indemnification pursuant to the terms of its bylaws, a resolution of the board of directors or
any directors and officers liability policy maintained by SunCom or the Company or as provided in
Section 6 herein.

          You further agree to waive irrevocably any right to recover under any Executive Claim that may
be filed on your behalf by or with the EEOC, any court or any other federal, state or local
government entity, or otherwise, relating to your employment with the Company or the ending of that
employment (e.g., in the event that a class action is brought against the Company in which you are
a member of the class). The above notwithstanding, nothing in this Agreement shall be construed to
prevent a challenge to the knowing and voluntary nature of this Agreement or to prevent an action
to ensure either party’s compliance with the terms of this Agreement.

          You acknowledge that the amounts provided for under the terms of this Agreement are in excess
of compensation you would have otherwise been entitled to under the terms of your Existing
Employment Agreement and that the payment of such excess compensation and benefits is made in
consideration for your execution of this Agreement

 

 

Mr. David D. Clark

December 20, 2005

Page 5

including the release contained in this Section 5 and the execution of an additional release on or
shortly after your Separation Date which release shall be substantially in the form attached hereto
as Schedule C (the “Additional Executive Release”). Should you refuse to sign the Additional
Executive Release on or shortly after your Separation Date, or you revoke the Additional Executive
Release under the terms thereof, the Company shall have no obligation to provide the compensation
and benefits provided hereunder. However, any refusal to sign the Additional Executive Release
shall not invalidate or otherwise affect any other term or provision of this Agreement, all of
which terms and provisions shall remain in full force and effect, including without limitation, the
release provided for in this Section 5.

     6. Indemnification and Insurance.

          (a) Notwithstanding any other obligation to provide you with indemnification or protection
under any directors and officers liability policy, SunCom shall indemnify you to the full extent
then permitted by law against expenses (including counsel fees and disbursements), judgments, fines
(including excise taxes assessed on an individual with respect to an employee benefit plan) and
amounts paid in settlement in connection with any threatened, pending or completed action, suit, or
proceeding whether civil, criminal, administrative, or investigative arising in connection with or
by reason of the fact that you are or were an officer or director of SunCom, the Company, or their
respective affiliates. If any claim is asserted for which you reasonably believe in good faith
that you are entitled to be indemnified, SunCom shall pay your reasonable legal expenses (or cause
such expenses to be paid) on a quarterly basis; provided that you shall reimburse SunCom for such
amounts if you are found by a final, non-appealable order of a court of competent jurisdiction not
to be entitled to indemnification.

          (b) SunCom shall use its reasonable best efforts to ensure that you are covered under any
directors’ and officers’ liability policy maintained by SunCom or the Company for a period of ten
years following your Separation Date to the same extent that you would have been eligible for such
coverage had you remained employed by the Company; provided that the obligation to provide such
coverage is conditioned upon the availability of such liability coverage that includes you as an
insured person thereunder on commercially reasonable terms as determined by SunCom in its sole
discretion.

     7. No Complaints. You represent that you have not filed any complaints or charges or
lawsuits against SunCom, the Company or any other SunCom Party with any governmental agency or
court and you have not assigned or transferred, or purported to assign or transfer, to any person
or entity, any Claim or any portion thereof or interest therein you have against SunCom, the
Company or any other SunCom Party.

     8. Company’s Remedies. You acknowledge and agree that the payments and benefits to be
provided pursuant to Section 2 hereof are subject to termination, reduction or rescission in the
event you violate any of the material terms of this Agreement. In the event of such a violation by
you, you will forfeit all payments or benefits not yet provided immediately upon your breach of the
Agreement.

 

 

Mr. David D. Clark

December 20, 2005

Page 6

     9. Non-Disparagement. You agree that you will not make any disparaging or defamatory
comments about SunCom or the Company, or any of their officers, directors, management, or
employees, nor will you authorize, encourage or participate with anyone on your behalf to make such
statements. Each of SunCom and the Company agrees that no member of the Board of Directors of
SunCom nor any of the officers of either SunCom or the Company will make any disparaging or
defamatory comments about you and will not authorize, encourage or participate with anyone to make
such statements.

     10. Reliance. You represent and acknowledge that you understand the terms of the
Agreement and have been given an opportunity to ask questions of the representatives of SunCom and
the Company. You have been advised to consult with an attorney prior to signing this Agreement;
whether you choose to do so is your decision. You further represent that in signing this Agreement
you do not rely, and have not relied, upon any representation or statement not set forth in this
Agreement made by any representative of SunCom or the Company or any other SunCom Party with regard
to the subject matter, basis or effect of this Agreement or otherwise. You acknowledge that you
have been given at least twenty-one (21) days to consider this Agreement. This Agreement is
knowingly and voluntarily entered into by all parties.

     11. Securities Filings; Stock Sale Restrictions. The parties will cooperate in making
any filings that may be required relating to any acquisition or disposition by you of any
securities of SunCom on or after your Separation Date, including but not limited to any Form 144
filings and any Forms 4 and 5 filings. Except pursuant to the 2003 Letter Agreement and applicable
federal and state securities laws, there are no agreements between you and SunCom restricting the
sale or other disposition by you of any securities of SunCom you now own. SunCom and the Company
acknowledge and agree that Section 4 of the 2003 Letter Agreement shall not be effective or binding
upon you from and after the date hereof. You acknowledge that as the result of your position with
the Company, you may have obtained material nonpublic information and to the extent you are in
possession of material nonpublic information, you acknowledge that you may be precluded from
trading in shares of SunCom stock and agree to comply with applicable securities laws regarding
such information.

     12. Restrictive Covenants. Notwithstanding anything contained in this Agreement, the
restrictive covenants contained in Section 6 of the Existing Employment Agreement shall remain in
full force and effect following your Separation Date in accordance with their terms, subject,
however, to the following modifications to be effective as of the date hereof:

          (a) Section 6(a) of the Existing Employment Agreement is hereby deleted in its entirety;

          (b) The duration of the non-solicitation obligation relating to employees of the Company under
Section 6(d) of the Existing Employment Agreement shall be the Employment Period plus a period of
two (2) years following the Separation Date;

 

 

Mr. David D. Clark

December 20, 2005

Page 7

          (c) The duration of the non-solicitation obligation relating to Customers of the Company under
Section 6(e) of the Existing Employment Agreement shall be the Employment Period plus a period of
two (2) years following the Separation Date; and

          (d) Your obligation not to solicit the business of the Company’s Customers pursuant to Section
6(e) of the Existing Employment Agreement shall be limited to solicitations relating to the sale
(or prospective sale) of products and/or services to such Customers that are competitive with to
the products and services provided by the Company as of the Separation Date.

     13. Entire Agreement. This Agreement sets forth the entire agreement between the
Parties and, except as expressly provided herein, fully supersedes any and all prior agreements,
understandings or arrangements among the parties relating to the subject matter of this Agreement,
including, the Existing Employment Agreement except to the extent provided in Section 8(a) of the
Original Employment Agreement as the same may be modified herein.

     14. Miscellaneous.

          (a) This Agreement shall be governed by and construed in accordance with the laws of the
Commonwealth of Pennsylvania without reference to rules regarding conflicts of law.

          (b) The provisions of this Agreement are severable and if any part of it is found to be
unenforceable, by a court of competent jurisdiction, such provision shall be modified by such court
so that it is enforceable to the fullest extent permitted by applicable law, and the other
provisions of the Agreement shall remain fully valid and enforceable; provided however, that if the
release provided for in Section 5 above (or any part thereof) is found to be invalid, the parties
shall negotiate a modification to such release to ensure the maximum enforceability permitted by
law.

          (c) Neither this Agreement nor any part of it may be modified, amended, changed or terminated
orally, and any modification, amendment, or termination must be in writing signed by all parties.
Any waiver of any term or provision of this Agreement must be in writing and signed by the party
granting the waiver.

          (d) This Agreement shall be binding upon you and your heirs, administrators, representatives,
executors and assigns and shall inure to the benefit of SunCom and the Company, their parent
companies, subsidiaries and affiliates and to their successors and assigns.

          (e) For a period of seven days after the date you sign this Agreement, you have the right to
revoke this Agreement by delivering written notice of revocation to the attention of the Chairman
of the Board of Directors of SunCom at SunCom’s principal executive offices by midnight on the
seventh day after you sign this Agreement. The Agreement shall not be effective or enforceable
and, subject to the payment dates listed hereunder, you shall not be entitled to any payments
hereunder until seven days have passed from the date you sign the Agreement and you have not
revoked the Agreement during such seven-day period.

 

 

Mr. David D. Clark

December 20, 2005

Page 8

     15. Notices. Any notice required or desired to be delivered under this Agreement
shall be in writing and shall be delivered personally against receipt, by nationally-recognized
overnight courier, or by registered mail, return receipt requested, and shall be effective upon
actual receipt by the party to which such notice shall be directed, and shall be addressed as
follows (or to such other address as the party entitled to notice shall hereafter designate in
accordance with this Section 15):

If to SunCom or the Company, to the attention of the Chairman of the

Board of Directors of SunCom at SunCom’s principal executive

offices, with a copy to:

Dow, Lohnes & Albertson, PLLC

1200 New Hampshire Avenue, N.W.

Washington, D.C. 20036

Attention: Leonard J. Baxt, Esq.

Facsimile: (202) 776-2222

If to Executive:

Mr. David D. Clark

501 Contention Lane

Berwyn, PA 19312

with a copy to:

Kleinbard Bell & Brecker LLC

1900 Market Street, Suite 700

Philadelphia, PA 19103

Attention: Howard J. Davis, Esq.

Facsimile: (215) 568-0140

[Signatures Contained on Next Page]

 

 

Mr. David D. Clark

December 20, 2005

Page 9

     You may evidence your acceptance of this Agreement by executing this Agreement where provided
below and returning it to me.

	 	 	 	 	 
	 	SunCom Wireless Holdings, Inc.

 	 
	 	By:  	/s/ Michael E. Kalogris
 	 
	 	 	Michael E. Kalogris 	 
	 	 	Chairman of the Board of Directors &
Chief Executive Officer 	 
	 
	 	SunCom Wireless Management Company, Inc.

 	 
	 	By:  	/s/ Michael E. Kalogris
 	 
	 	 	Michael E. Kalogris, Chief Executive Officer 	 
	 	 	 	 
	 
	 	 	 
	 	                                                      /s/ David D. Clark
 	 
	 	DAVID D. CLARK 	 
	 	 	 

 

 

	 	 	 	 	 

Schedule A

Accelerated Vesting

     As of your Separation Date, you will be vested in the following shares in accordance with the
terms of your agreements with SunCom:

	 	 	 
	Vesting Date	 	Vested Shares
	May 1, 2006
	 	92,500
	TOTAL
	 	92,500

 

 

Schedule B

Company Property Retained by Executive

     As of your Separation Date, you shall be entitled to retain the following items of SunCom
property:

          One (1) laptop computer;

          One (1) Treo 650 smartphone; and

          One (1) HP printer.

 

 

Schedule C

Additional Executive Release

Release Agreement

     This Release Agreement is made and entered into by David D. Clark (the “Executive”).

     WHEREAS, SunCom Wireless Management Company, Inc. (f/k/a Triton Management Company, Inc.) (the
“Company”) and its parent, SunCom Wireless Holdings, Inc. (f/k/a Triton PCS Holdings, Inc.)
(“SunCom”) have entered into a Letter Agreement dated December 20, 2005 (the “Letter Agreement”)
under which the Executive will be provided certain compensation and benefits, if the Executive,
among other things, signs a release agreement on or shortly after his last day of employment with
the Company;

     WHEREAS, the Executive has satisfied the other conditions under the Letter Agreement, the
Executive’s employment with the employer has ended and the Executive will receive the compensation
and benefits provided under the Letter Agreement if he executes this Release Agreement and does not
revoke it as provided herein.

     NOW THEREFORE, in consideration of the mutual promises contained in the Letter Agreement, it
is agreed as follows:

1. The Executive, on behalf of himself, his heirs, executors, administrators and assigns, and all
persons acting by, through, under or in concert with any of them (collectively, the “Executive
Parties”), hereby irrevocably and unconditionally release SunCom, the Company and their current,
former and future parent companies, subsidiaries and affiliates, together with all of their
current, former and future employees, directors, partners, members, shareholders, officers, agents,
attorneys, representatives, predecessors, successors, related entities, assigns, and the like, and
all persons acting by, through, under or in concert with any of them (collectively, the “SunCom
Parties”) from any and all charges, complaints, claims, liabilities, obligations, promises,
agreements, controversies, damages or causes of action, suits, rights, demands, costs, losses,
debts and expenses (including attorneys’ fees and costs incurred) of any nature whatsoever, known
or unknown, suspected or unsuspected, including, but not limited to, any such claims arising out of
or related to the Executive’s service as an officer and director of SunCom and its affiliates or
the Executive’s employment with the Company or the ending of that employment including, but not
limited to: rights under federal, state or local laws prohibiting discrimination, including,
without limitation, discrimination on the basis of age as prohibited by the Age Discrimination in
Employment Act, which as of the date the Executive signs this Release Agreement, the Executive has,
owns, or holds or claims to have, own or hold, or which the Executive at any time prior thereto,
had owned or held, or claimed to have had, owned or held against the SunCom Parties (an “Executive
Claim”), but excluding:

a. Claims for vested retirement plan benefits under the Company’s tax-qualified retirement
plan;

 

 

b. Claims for any of the payments or benefits to be provided under the Letter Agreement or
those relating to SunCom’s or the Company’s breach of the Letter Agreement;

c. Claims for benefits under any insured group health plan maintained by the Company,
including any right to continuation coverage under COBRA;

d. Claims for indemnification under the terms of Section 4(d) of the Existing Employment
Agreement;

e. Claims under any liability insurance policy maintained in accordance with Section 4(e) of
the Employment Agreement; or

f. Claims by you for indemnification to the extent that SunCom or the Company has provided
such indemnification pursuant to the terms of its bylaws, a resolution of the board of
directors or any directors and officers liability policy maintained by SunCom or the Company
or as provided in Section 6 of the Letter Agreement.

2. The Executive further agrees to waive irrevocably any right to recover under any Executive Claim
that may be filed on his behalf by or with the EEOC, any court or any other federal, state or local
government entity, or otherwise, relating to the Executive’s employment with the Company or the
ending of that employment (e.g., in the event that a class action is brought against the Company in
which the Executive is a member of the class). The above notwithstanding, nothing in this Release
Agreement shall be construed to prevent a challenge to the knowing and voluntary nature of this
Release Agreement or to prevent an action to ensure either party’s compliance with the terms of
this Release Agreement.

3. The Executive represents that he has not filed any complaints or charges or lawsuits against
SunCom, the Company or any other SunCom Party with any governmental agency or court and has not
assigned or transferred, or purported to assign or transfer, to any person or entity, any Claim or
any portion thereof or interest therein he has against SunCom, the Company or any other SunCom
Party.

4. The Executive represents and acknowledges that he understand the terms of this Release Agreement
and has been given an opportunity to ask questions of the representatives of SunCom and the
Company. The Executive has been advised to consult with an attorney prior to signing this Release
Agreement; whether he chooses to do so is his decision. The Executive further represents that in
signing this Release Agreement he does not rely, and has not relied, upon any representation or
statement not set forth in this Release Agreement made by any representative of SunCom or the
Company or any other SunCom Party with regard to the subject matter, basis or effect of this
Release Agreement or otherwise. The Executive acknowledges that he has been given at least
twenty-one (21) days to consider this Release Agreement. This Release Agreement is knowingly and
voluntarily entered into by all parties.

5. For a period of seven days after the date the Executive signs this Release Agreement, he has the
right to revoke this Release Agreement by delivering written notice of revocation to the attention
of the Chairman of the Board of Directors of SunCom at SunCom’s principal executive offices by
midnight on the seventh day after the Executive signs this Release Agreement. The Release
Agreement shall not be effective or enforceable and, subject to the payment dates

 

 

provided under the Letter Agreement, the Executive shall not be entitled to any payments hereunder
until seven days have passed from the date he signs this Release Agreement and has not revoked this
Release Agreement during such seven-day period.

6. Capitalized terms used in this Release Agreement shall have the same meaning as provided under
the Letter Agreement except as otherwise expressly provided herein.

7. This Release Agreement shall be governed by and construed in accordance with the laws of the
Commonwealth of Pennsylvania without reference to rules regarding conflicts of law.

8. The provisions of this Release Agreement are severable and if any part of it is found to be
unenforceable, by a court of competent jurisdiction, such provision shall be modified by such court
so that it is enforceable to the fullest extent permitted by applicable law, and the other
provisions of this Release Agreement shall remain fully valid and enforceable.

9. Neither this Release Agreement nor any part of it may be modified, amended, changed or
terminated orally, and any modification, amendment, or termination must be in writing signed by all
parties. Any waiver of any term or provision of this Release Agreement must be in writing and
signed by the party granting the waiver.

10. This Release Agreement shall be binding upon the Executive and his heirs, administrators,
representatives, executors and assigns and shall inure to the benefit of SunCom and the Company,
their parent companies, subsidiaries and affiliates and to their successors and assigns.

EXECUTIVE

	 	 	 	 	 	 	 	 	 
	 	 	 	 	 
	David D. Clark

	 	 	 	Dateexv10w23

 

Exhibit 10.23

SunCom Wireless Management Company, Inc.

1100 Cassatt Road

Berwyn, Pennsylvania 19312

December 2, 2005

Mr. William A. Robinson

1100 Cassatt Road

Berwyn, PA 19312

Dear Mr. Robinson:

          You previously entered into an employment agreement with SunCom Wireless Management Company,
Inc. (f/k/a Triton Management Company, Inc.) (the “Company”) dated March 7, 2005 (the “Existing
Employment Agreement”). Except as otherwise defined herein, all capitalized terms used herein
shall have the meanings set forth in the Existing Employment Agreement.

          The Existing Employment Agreement’s current term is scheduled to expire on February 3, 2006
but will automatically extend for a one-year renewal term in the absence of either party providing
a notice of nonrenewal prior to the close of business on Monday, December 5, 2005 (the “Notice
Deadline”).

          As you know, we are currently negotiating the terms of an amendment to your Existing
Employment Agreement. In light of the numerous projects in which you are currently involved on
behalf of the Company and its parent SunCom Wireless Holdings, Inc. (“SunCom”), and the likelihood
that the proposed amendment will not be finalized by the Notice Deadline, the Company in this
letter agreement (this “Agreement”) hereby agrees to modify the terms of your Existing Employment
Agreement as set forth below:

          1.      Notice Deadline. The Notice Deadline by which either party is required to give a
notice of nonrenewal of the Existing Employment Agreement is hereby extended to the close of
business on Wednesday, December 21, 2005. Notwithstanding the foregoing change, the expiration
date of the Existing Employment Agreement’s current term shall continue to be February 3, 2006.

          2.      All Other Provisions Remain Effective. Except as otherwise expressly modified
under this Agreement, all other terms and conditions of the Existing Employment Agreement shall
continue in full force and effect and are hereby ratified and confirmed. In the event of any
inconsistency between the provisions of the Existing Employment Agreement and the provisions of
this Agreement, the provisions of this Agreement shall control.

 

 

Mr.
William A. Robinson

December 2, 2005

Page 2

          Please evidence your acceptance of the foregoing modifications to the Existing Employment
Agreement by executing this Agreement where provided below and returning it to me, whereupon this
Agreement shall constitute the legally valid and binding obligation of the parties hereto,
enforceable against such parties in accordance with its terms, and future references to your
Employment Agreement shall mean the Existing Employment Agreement as amended by this Agreement.

	 	 	 	 	 
	 	SunCom Wireless Management Company, Inc.

 	 
	 	By:  	/s/ David D. Clark
 	 
	 	 	Name:  	David D. Clark 	 
	 	 	Title:  	Executive Vice President and CFO 	 
	 

	 	 	 	 	 
	 	 	 
	 	 	Executive
 	 
	 	 	 	 
	 	 	 	 
	 

	 	 	 	 	 
	 	 	 
	 	 	/s/ William A. Robinson
 	 
	 	 	WILLIAM A. ROBINSON

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