Document:

10-K 2007 Exhibit 10.7

                                                                                EXHIBIT 10.7

REVOLVING LINE OF CREDIT NOTE

	
$30,000,000.00
	
Los Angeles, California

                 December 15, 2007

FOR VALUE RECEIVED, the undersigned TEKELEC ("Borrower") promises to pay to the order of WELLS FARGO BANK, NATIONAL
ASSOCIATION ("Bank") at its office at 333 South Grand Avenue, Ste 1200, Los Angeles, CA 90071, California, or at such other place as the
holder hereof may designate, in lawful money of the United States of America and in immediately available funds, the principal sum of Thirty
Million Dollars ($30,000,000.00), or so much thereof as may be advanced and be outstanding, with interest thereon, to be computed on each
advance from the date of its disbursement as set forth herein.

DEFINITIONS:

As used herein, the following terms shall have the meanings set forth after each, and any other term defined in this Note shall have
the meaning set forth at the place defined:

(a)"Business Day" means any day except a Saturday, Sunday or any other day on which commercial banks in California are
authorized or required by law to close.

(b)"Fixed Rate Term" means a period commencing on a Business Day and continuing for 1, 2, 3 or 6 months, as designated by
Borrower, during which all or a portion of the outstanding principal balance of this Note bears interest determined in relation to LIBOR;
provided however, that no Fixed Rate Term may be selected for an advance in a principal amount less than $1,000,000.00; and provided
further, that no Fixed Rate Term shall extend beyond the scheduled maturity date hereof.  If any Fixed Rate Term would end on a day which is
not a Business Day, then such Fixed Rate Term shall be extended to the next succeeding Business Day.

(c)"LIBOR" means the rate per annum (rounded upward, if necessary, to the nearest whole 1/8 of 1%) and determined pursuant
to the following formula:

	
LIBOR =
	
Base LIBOR

	 	
100% - LIBOR Reserve Percentage

(i)"Base LIBOR" means the rate per annum for United States dollar deposits quoted by Bank as the Inter-Bank Market
Offered Rate, with the understanding that such rate is quoted by Bank for the purpose of calculating effective rates of interest for loans making
reference thereto, on the first day of a Fixed Rate Term for delivery of funds on said date for a period of time approximately equal to the
number of days in such Fixed Rate Term and in an amount approximately equal to the principal amount to which such Fixed Rate Term
applies.  Borrower understands and agrees that Bank may base its quotation of the Inter-Bank Market Offered Rate upon such offers or other
market indicators of the Inter-Bank Market as Bank in its discretion deems appropriate including, but not limited to, the rate offered for U.S.
dollar deposits on the London Inter-Bank Market.

                                                    -1-

(ii)"LIBOR Reserve Percentage" means the reserve percentage prescribed by the Board of Governors of the Federal
Reserve System (or any successor) for "Eurocurrency Liabilities" (as defined in Regulation D of the Federal Reserve Board, as amended),
adjusted by Bank for expected changes in such reserve percentage during the applicable Fixed Rate Term.

(d)"Prime Rate" means at any time the rate of interest most recently announced within Bank at its principal office as its Prime
Rate, with the understanding that the Prime Rate is one of Bank's base rates and serves as the basis upon which effective rates of interest are
calculated for those loans making reference thereto, and is evidenced by the recording thereof after its announcement in such internal
publication or publications as Bank may designate.

INTEREST:

(a)Interest.  The outstanding principal balance of this Note shall bear interest (computed on the basis of a 360-day year,
actual days elapsed) either (i) at a fluctuating rate per annum equal to the Prime Rate in effect from time to time, or (ii) at a fixed rate per
annum determined by Bank to be three-tenths percent (0.30%) above LIBOR in effect on the first day of the applicable Fixed Rate Term.
When interest is determined in relation to the Prime Rate, each change in the rate of interest hereunder shall become effective on the date
each Prime Rate change is announced within Bank.  With respect to each LIBOR selection hereunder, Bank is hereby authorized to note the
date, principal amount, interest rate and Fixed Rate Term applicable thereto and any payments made thereon on Bank's books and records
(either manually or by electronic entry) and/or on any schedule attached to this Note, which notations shall be prima facie evidence of the
accuracy of the information noted.

(b)Selection of Interest Rate Options.  At any time any portion of this Note bears interest determined in relation to
LIBOR, it may be continued by Borrower at the end of the Fixed Rate Term applicable thereto so that all or a portion thereof bears interest
determined in relation to the Prime Rate or to LIBOR for a new Fixed Rate Term designated by Borrower.  At any time any portion of this Note
bears interest determined in relation to the Prime Rate, Borrower may convert all or a portion thereof so that it bears interest determined in
relation to LIBOR for a Fixed Rate Term designated by Borrower.  At such time as Borrower requests an advance hereunder or wishes to
select a LIBOR option for all or a portion of the outstanding principal balance hereof, and at the end of each Fixed Rate Term, Borrower shall
give Bank notice specifying: (i) the interest rate option selected by Borrower; (ii) the principal amount subject thereto; and (iii) for each
LIBOR selection, the length of the applicable Fixed Rate Term. Any such notice may be given by telephone (or such other electronic method
as Bank may permit) so long as, with respect to each LIBOR selection, (A) if requested by Bank, Borrower provides to Bank written
confirmation thereof not later than three (3) Business Days after such notice is given, and (B) such notice is given to Bank prior to 10:00 a.m.
on the first day of the Fixed Rate Term, or at a later time during any Business Day if Bank, at its sole option but without obligation to do so,
accepts Borrower's notice and quotes a fixed rate to Borrower.  If Borrower does not immediately accept a fixed rate when quoted by Bank, the
quoted rate shall expire and any subsequent LIBOR request from Borrower shall be subject to a redetermination by Bank of the applicable
fixed rate.  If no specific designation of interest is made at the time any advance is requested hereunder or at the end of any Fixed Rate Term,
Borrower shall be deemed to have made a Prime Rate interest selection for such advance or the principal amount to which such Fixed Rate
Term applied.

(c)Taxes and Regulatory Costs.  Borrower shall pay to Bank immediately upon demand, in addition to any other
amounts due or to become due hereunder, any and all (i)

                                                    -2-

withholdings, interest equalization taxes, stamp taxes or other taxes (except income
and franchise taxes) imposed by any domestic or foreign governmental authority and related in any manner to LIBOR, and (ii) future,
supplemental, emergency or other changes in the LIBOR Reserve Percentage, assessment rates imposed by the Federal Deposit Insurance
Corporation, or similar requirements or costs imposed by any domestic or foreign governmental authority or resulting from compliance by Bank
with any request or directive (whether or not having the force of law) from any central bank or other governmental authority and related in any
manner to LIBOR to the extent they are not included in the calculation of LIBOR.  In determining which of the foregoing are attributable to any
LIBOR option available to Borrower hereunder, any reasonable allocation made by Bank among its operations shall be conclusive and binding
upon Borrower.

(d)Payment of Interest.  Interest accrued on this Note shall be payable in arrears on the last day of each calendar
quarter, commencing on December 31, 2007.

(e)Default Interest.  From and after the maturity date of this Note, or such earlier date as all principal owing hereunder
becomes due and payable by acceleration or otherwise, the outstanding principal balance of this Note shall bear interest until paid in full at an
increased rate per annum (computed on the basis of a 360-day year, actual days elapsed) equal to two percent (2%) above the rate of interest
from time to time applicable to this Note.

BORROWING AND REPAYMENT:

(a)Borrowing and Repayment.  Borrower may from time to time during the term of this Note borrow, partially or wholly
repay its outstanding borrowings, and reborrow, subject to all of the limitations, terms and conditions of this Note and of any document
executed in connection with or governing this Note; provided however, that the total outstanding borrowings under this Note shall not at any
time exceed the principal amount stated above.  The unpaid principal balance of this obligation at any time shall be the total amounts
advanced hereunder by the holder hereof less the amount of principal payments made hereon by or for any Borrower, which balance may be
endorsed hereon from time to time by the holder.  The outstanding principal balance of this Note shall be due and payable in full on December
15, 2008.

(b)Advances.  Advances hereunder, to the total amount of the principal sum stated above, may be made by the holder
at the written request of Borrower, signed or purportedly signed by any one (1) of such persons as borrower's Chief Financial Officer may from
time to time designate in writing as being authorized to request advances (each, a "Designated Signer").  Bank will not advance
funds if a written request is signed or purportedly signed in the name of a person who is not a Designated Signer.  The holder shall have no
obligation to determine whether the signature purporting to be that of a Designated Signer is in fact the actual signature of a Designated
Person.

(c)Application of Payments.  Each payment made on this Note shall be credited first, to any interest then due and
second, to the outstanding principal balance hereof.  All payments credited to principal shall be applied first, to the outstanding principal
balance of this Note which bears interest determined in relation to the Prime Rate, if any, and second, to the outstanding principal balance of
this Note which bears interest determined in relation to LIBOR, with such payments applied to the oldest Fixed Rate Term first.

                                                    -3-

PREPAYMENT:

(a)Prime Rate.  Borrower may prepay principal on any portion of this Note which bears interest determined in relation to
the Prime Rate at any time, in any amount and without penalty.

(b)LIBOR.  Borrower may prepay principal on any portion of this Note which bears interest determined in relation to
LIBOR at any time and in the minimum amount of $500,000.00; provided however, that if the outstanding principal balance of such portion of
this Note is less than said amount, the minimum prepayment amount shall be the entire outstanding principal balance thereof.  In consideration
of Bank providing this prepayment option to Borrower, or if any such portion of this Note shall become due and payable at any time prior to the
last day of the Fixed Rate Term applicable thereto by acceleration or otherwise, Borrower shall pay to Bank immediately upon demand a fee
which is the sum of the discounted monthly differences for each month from the month of prepayment through the month in which such Fixed
Rate Term matures, calculated as follows for each such month:

(i)Determine the amount of interest which would have accrued each month on the amount prepaid at the interest rate
applicable to such amount had it remained outstanding until the last day of the Fixed Rate Term applicable thereto.

(ii)Subtract from the amount determined in (i) above the amount of interest which would have accrued for the same
month on the amount prepaid for the remaining term of such Fixed Rate Term at LIBOR in effect on the date of prepayment for new loans
made for such term and in a principal amount equal to the amount prepaid.

(iii)If the result obtained in (ii) for any month is greater than zero, discount that difference by LIBOR used in (ii) above.

Borrower acknowledges that prepayment of such amount may result in Bank incurring additional costs, expenses and/or liabilities, and that
it is difficult to ascertain the full extent of such costs, expenses and/or liabilities.  Borrower, therefore, agrees to pay the above-described
prepayment fee and agrees that said amount represents a reasonable estimate of the prepayment costs, expenses and/or liabilities of Bank.  If
Borrower fails to pay any prepayment fee when due, the amount of such prepayment fee shall thereafter bear interest until paid at a rate per
annum 2.00% above the Prime Rate in effect from time to time (computed on the basis of a 360-day year, actual days elapsed).  Each change
in the rate of interest on any such past due prepayment fee shall become effective on the date each Prime Rate change is announced within
Bank.

EVENTS OF DEFAULT:

This Note is made pursuant to and is subject to the terms and conditions of that certain Credit Agreement between Borrower and
Bank dated as of December 15, 2004, as amended from time to time (the "Credit Agreement").  Any default in the payment or performance of
any obligation under this Note, or any defined event of default under the Credit Agreement, shall constitute an "Event of Default" under this
Note.

                                                    -4-

MISCELLANEOUS:

(a)Remedies.  Upon the occurrence of any Event of Default, the holder of this Note, at the holder's option, may declare
all sums of principal and interest outstanding hereunder to be immediately due and payable without presentment, demand, notice of
nonperformance, notice of protest, protest or notice of dishonor, all of which are expressly waived by each Borrower, and the obligation, if any,
of the holder to extend any further credit hereunder shall immediately cease and terminate.  Each Borrower shall pay to the holder immediately
upon demand the full amount of all payments, advances, charges, costs and expenses, including reasonable attorneys' fees (to include outside
counsel fees and all allocated costs of the holder's in-house counsel), expended or incurred by the holder in connection with the enforcement
of the holder's rights and/or the collection of any amounts which become due to the holder under this Note, and the prosecution or defense of
any action in any way related to this Note, including without limitation, any action for declaratory relief, whether incurred at the trial or appellate
level, in an arbitration proceeding or otherwise, and including any of the foregoing incurred in connection with any bankruptcy proceeding
(including without limitation, any adversary proceeding, contested matter or motion brought by Bank or any other person) relating to Borrower
or any other person or entity.  Notwithstanding any provision in this Agreement to the contrary, in any action or dispute between the parties
arising out of or in any way connected with this Note or any of the other "Loan Documents" (as defined in the Credit
Agreement), the prevailing party in any such action or dispute (whether by way of judgment, arbitration award, mediation, settlement or
otherwise, and whether or not suit is commenced) shall be entitled to collect from the other party the prevailing party's costs and expenses
incurred in connection with such action or dispute, including, without limitation, all litigation costs and reasonable attorneys' fees.

(b)Governing Law.  This Note shall be governed by and construed in accordance with the laws of the State of California.

This Note amends replaces and supersedes the Revolving Line of Credit Note in the principal amount of $30,000,000.00 dated as of
December 15, 2006 executed by Borrower in favor of Bank.

IN WITNESS WHEREOF, the undersigned has executed this Note as of the date first written above.

TEKELEC

/s/ William H. Everett

   Executive Vice President and Chief Financial Officer

                                                    -5-10-K 2007 Exhibit 10.28

                                                                                EXHIBIT 10.28

EMPLOYMENT SEPARATION AGREEMENT

THIS EMPLOYMENT SEPARATION AGREEMENT (the "Agreement"), which includes Exhibits A, B
and C hereto which are incorporated herein by this reference, is entered into by and between TEKELEC, a California corporation
("Tekelec"), and Eric Gehl ("Former Employee"), and shall become effective when executed by both parties hereto (the
"Effective Date").

RECITALS

A.Former Employee ceased to be an employee and officer of Tekelec on November 30, 2007 (the
"Termination Date").

B.Former Employee desires to receive severance benefits under Tekelec's Officer Severance Plan dated May 21,
2007 (the "Severance Plan"), which benefits are stated in the Severance Plan to be contingent upon, among other things, Former
Employee's entering into this Agreement and undertaking the obligations set forth herein.

C.Tekelec and Former Employee desire to set forth their respective rights and obligations with respect to Former
Employee's separation from Tekelec and to finally and forever settle and resolve all matters concerning Former Employee's past services to
Tekelec.

AGREEMENT

NOW, THEREFORE, in consideration of the foregoing recitals and the mutual covenants and conditions set forth
herein, the receipt and sufficiency of which are hereby acknowledged, Tekelec and Former Employee hereby agree as follows:

1.    DEFINITIONS 

As used herein, the following terms shall have the meanings set forth below:

1.1.    "Includes;" "Including."  Except where followed directly by the word
"only," the terms "includes" or "including" shall mean "includes, but is not limited to," and
"including, but not limited to," respectively.

1.2.    "Severance Covered Period."  The term "Severance Covered Period" shall mean a
period of time commencing upon the effective date of this Agreement and ending on the last day of the Change in Control Severance Period or
General Severance Period, as applicable.

1.3.    Other Capitalized Terms.  Capitalized terms (other than those specifically defined herein) shall have the
same meanings ascribed to them in the Severance Plan.

2.    MUTUAL REPRESENTATIONS, WARRANTIES AND COVENANTS

Each party hereto represents, warrants and covenants (with respect to itself/himself only) to the other party hereto
that, to its/his respective best knowledge and belief as of the date of each party's respective signature below:

2.1.    Full Power and Authority.  It/he has full power and authority to execute, enter into and perform its/his
obligations under this Agreement; this Agreement, after execution by both parties hereto, will be a legal, valid and binding obligation of such
party enforceable against it/him in accordance with its terms; it/he will not act or omit to act in any way which would materially interfere with or
prohibit the performance of any of its/his obligations hereunder, and no approval or consent other than as has been obtained of any other party
is necessary in connection with the execution and performance of this Agreement.

2.2.    Effect of Agreement.  The execution, delivery and performance of this Agreement and the consummation
of the transactions hereby contemplated:

	will not interfere or conflict with, result in a breach of, constitute a default under or violation of any of the terms,
provisions, covenants or conditions of any contract, agreement or understanding, whether written or oral, to which it/he is a party (including, in
the case of Tekelec, its bylaws and articles of incorporation each as amended to date) or to which it/he is bound;

	will not conflict with or violate any applicable law, rule, regulation, judgment, order or decree of any government,
governmental agency or court having jurisdiction over such party; and

	has not heretofore been assigned, transferred or granted to another party, or purported to assign, transfer or grant
to another party, any rights, obligations, claims, entitlements, matters, demands or causes of actions relating to the matters covered
herein.

3.    CONFIDENTIALITY OBLIGATIONS DO NOT TERMINATE

Former Employee acknowledges that any confidentiality, proprietary rights or nondisclosure agreement(s) in favor
of Tekelec which he may have entered into in connection with his employment (collectively, the "Nondisclosure Agreement") with
Tekelec is understood to be intended to survive, and does survive, any termination of such employment, and accordingly nothing in this
Agreement shall be construed as terminating, limiting or otherwise affecting any such Nondisclosure Agreement or Former Employee's
obligations thereunder.  Without limiting the generality of the foregoing, no time period set forth in this Agreement shall be construed as
shortening or limiting the term of any such Nondisclosure Agreement, which term shall continue as set forth therein.

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4.    BENEFITS
 

4.1.    Health Care Coverage Continuation.  Tekelec (at its expense) will continue, for the duration of the
Former Employee's Severance Covered Period, health care coverage for the Former Employee and his/her family members who are
"qualified beneficiaries" (as such term is defined in the Consolidated Omnibus Budget Reconciliation Act of 1985
("COBRA") under Tekelec's group health plan(s) generally available through COBRA during such period to employees participating
in such plans(s) and at levels and contribution rates and with coverage no greater than those provided to such Former Employee as of the
Termination Date.  In the event the Former Employee and his or her family members become eligible for group health care coverage
elsewhere on terms generally no less favorable to the Former Employee during the Severance Covered Period, the Former Employee shall
provide notice to Tekelec, and Tekelec reserves the right to discontinue paying for such coverage under Tekelec's group health plans.  Upon
exhaustion of the later of the Former Employee's Severance Covered Period or the COBRA continuation period, or after Tekelec ceases
paying for coverage (if applicable), such Former Employee may elect coverage under a conversion health plan available under Tekelec's
group health plan(s) from the Company's health insurance carrier if and to the extent he/she is entitled to do so as a matter of right under
federal or state law.  Any expense associated with the continuation of any health care coverage beyond the Former Employee's Severance
Covered Period will be the sole responsibility of the Former Employee.   

4.2.    Other Benefit Plans.  Except as otherwise expressly provided in this Section 4 or as required by
applicable law, Former Employee shall have no right to continue his participation in any Tekelec benefit plan following such employee's
termination.

5.    STOCK OPTIONS

Exhibit A hereto sets forth any and all outstanding stock options, warrants and equity incentives and other rights to
purchase capital stock or other securities of Tekelec which have been previously issued to Former Employee and which are outstanding as of
the date hereof.  Nothing in this Agreement shall alter or affect any of such outstanding stock options, warrants, equity incentives or rights or
Former Employee's rights or responsibilities with respect thereto, including but not limited to Former Employee's rights to exercise any of his
options, warrants, equity incentives or rights following the Termination Date.

6.    PAYMENTS TO FORMER EMPLOYEE

6.1.    Employee Compensation.  Tekelec has paid, and Former Employee acknowledges and agrees that
Tekelec has paid, to him any and all salary and accrued but unpaid vacation and sick pay owed by Tekelec to Former Employee up to and
including the Termination Date other than any compensation owed to him under the Severance Plan.

6.2.    General Severance Allowance.  In consideration for the release by Former Employee set forth herein
(including the release of any and all claims Former Employee has or may have under the Age Discrimination in Employment Act
("ADEA")) and Former Employee's performance of his obligations under this Agreement (including but not limited to Former
Employee's obligations under Section 7 hereof), Former Employee is entitled to receive, and Tekelec shall pay to Former

                                                    3

Employee, a General Severance Allowance in the aggregate gross amount of $574,600 payable in 12 equal monthly installments of $47,883.33 each, less all
applicable withholding taxes, beginning on the date that is ten days after the Effective Date and continuing on the monthly anniversary of such
date thereafter, in accordance with the terms and conditions of the Severance Plan; however, if Former Employee is a Specified Employee,
any payment which would otherwise occur within the first six months following the Former Employee's termination of employment shall be paid
in a lump sum, with interest accruing at a reasonable rate of interest from the date of the Former Employee's termination of employment, on
the first day of the seventh month immediately following the termination of employment to the extent necessary for the Former Employee to
avoid any adverse tax consequences under Code Section 409A.

6.3.    Relocation Expenses.  To assist Former Employee in relocating from his current residence to France,
Tekelec will reimburse Former Employee for reasonable expenses incurred by him as a result of or in connection with such relocation,
provided that such expenses do not exceed $80,000 and Former Employee provides reasonable documentation that he has incurred such
expenses.

6.4    Educational Transition Tutoring.  To further assist Former Employee in relocating from his current
resident to France, Tekelec will reimburse Executive for the cost of obtaining tutoring services for Former Employee's dependent children to
assist in their transition to the French educational system, provided that such costs do not exceed $15,000 and Former Employee provides
reasonable documentation that he has incurred such costs.

6.5    Outplacement Assistance.  Tekelec has retained Lee Hecht Harrison for provision of outplacement
support.

7.    NON-COMPETITION AND NON-SOLICITATION

7.1.    Subject and in addition to Former Employee's existing fiduciary duties as a former officer and employee of
Tekelec to the extent such continues under applicable law after Former Employee's Termination Date, provided that Tekelec has not breached
any of the terms of this Agreement or any other currently existing written agreements between Tekelec and Former Employee, Former
Employee agrees until the earlier of (i) the completion of the Severance Covered Period or (ii) such date as Tekelec may terminate this
Agreement for default hereunder:

	Not to engage in any Competing Business Activity (as defined below) or be associated with a Competing Business
Entity (as defined below) as an officer, director, employee, principal, consultant, lender, creditor, investor, agent or otherwise for any
corporation, partnership, company, agency, person, association or any other entity; provided, however, that nothing contained herein shall
prevent Former Employee from owning not more than 5% of the common equity and not more than 5% of the voting power of, or lending not
more than $25,000 to, any Competing Business Entity or any business engaged in a Competing Business Activity; provided, further, that for
purposes of this agreement, any equity ownership, voting control or lending activity of Former Employee shall be deemed to include that of (i)
any family member or (ii) person or entity controlled by Former Employee;

                                                    4

	Not to call upon or cause to be called upon, or solicit or assist in the solicitation of, in connection with any
Competing Business Entity or Competing Business Activity, any entity, agency, person, firm, association, partnership or corporation that is a
customer or account of Tekelec, currently and/or during the Severance Covered Period, for the purpose of selling, renting, leasing, licensing or
supplying any product or service that is the same as, similar to or competitive with the products or services then being sold or developed by
Tekelec;

	Not to enter into an employment or agency relationship with a Competing Business Entity or involving a Competing
Business Activity with any person who, at the time of such entry, is an officer, director, employee, principal or agent of or with respect to
Tekelec; and

	Not to induce or attempt to induce any person described in Section 7.1(c) to leave his employment, agency,
directorship or office with Tekelec.

7.2.    For purposes of this Section 7, a "Competing Business Activity" shall mean any business activity of a
person or entity (other than Tekelec) involving the development, design, manufacture, distribution, marketing, licensing, renting, leasing or
selling within the Territory (as defined below) of products and services which are the same as, similar to or competitive with products or
services of Tekelec then in existence or under development.  For purposes hereof, the Territory shall include:  the United States of America;
Canada; Central America; South America; Europe; Japan; Australia; Singapore; and any country in which Tekelec then distributes, markets,
licenses, rents, leases or sells its products or services.  An entity as a whole shall be deemed to be a Competing Business Entity if it has one
or more business activities involving the development, design, manufacture, distribution, marketing, licensing, renting, leasing or selling directly
or indirectly within the Territory of products or services which are the same as, similar to or competitive with products or services of Tekelec
then being sold or under development and if and only if the revenues derived directly or indirectly from engaging in such business activities by
such entity represent either more than 3% of the entity's revenues or at least $5 million in aggregate sales, or both, for the then-preceding 12-
month period.

7.3.    The parties acknowledge that the provisions and obligations set forth in this Section 7 are an integral part of this
Agreement and that in the event Former Employee fails to abide by  the provisions or obligations of this Section 7 or any other term, provision
or obligation of this Agreement, then Tekelec, in addition to any other rights or remedy it may have at law, in equity, by statute or otherwise,
shall be excused from its payment obligations to Former Employee under the Severance Plan and this Agreement.

8.    CONFIDENTIAL INFORMATION AND TRADE SECRETS

8.1.    Former Employee hereby recognizes, acknowledges and agrees that Tekelec is the owner of proprietary
rights in certain confidential sales and marketing information, programs, tactics, systems, methods, processes, compilations of technical and
non-technical information, records and other business, financial, sales, marketing and other information and things of value.  To the extent that
any or all of the foregoing constitute valuable trade secrets and/or confidential and/or privileged information of Tekelec, Former Employee
hereby further agrees as follows:

                                                    5

	That, except with prior written authorization from Tekelec's CEO, for purposes related to Tekelec's best interests,
he will not directly or indirectly duplicate, remove, transfer, disclose or utilize, nor knowingly allow any other person to duplicate, remove,
transfer, disclose or utilize, any property, assets, trade secrets or other things of value, including, but not limited to, records, techniques,
procedures, systems, methods, market research, new product plans and ideas, distribution arrangements, advertising and promotional
materials, forms, patterns, lists of past, present or prospective customers, and data prepared for, stored in, processed by or obtained from, an
automated information system belonging to or in the possession of Tekelec which are not intended for and have not been the subject of public
disclosure.  Former Employee agrees to safeguard all Tekelec trade secrets in his possession or known to him at all times so that they are not
exposed to, or taken by, unauthorized persons and to exercise his reasonable efforts to assure their safekeeping.  This subsection shall not
apply to information that as of the date hereof is, or as of the date of such duplication, removal, transfer, disclosure or utilization (or the
knowing allowing thereof) by Former Employee has (i) become generally known to the public or competitors of Tekelec (other than as a result
of a breach of this Agreement); (ii) been lawfully obtained by Former Employee from any third party who has lawfully obtained such information
without breaching any obligation of confidentiality; or (iii) been published or generally disclosed to the public by Tekelec.  Former Employee
shall bear the burden of showing that any of the foregoing exclusions applies to any information or materials.

	That all improvements, discoveries, systems, techniques, ideas, processes, programs and other things of value
made or conceived in whole or in part by Former Employee with respect to any aspects of Tekelec's current or anticipated business while an
employee of Tekelec are and remain the sole and exclusive property of Tekelec, and Former Employee has disclosed all such things of value
to Tekelec and will cooperate with Tekelec to insure that the ownership by Tekelec of such property is protected.  All of such property of
Tekelec in Former Employee's possession or control, including, but not limited to, all personal notes, documents and reproductions thereof,
relating to the business and the trade secrets or confidential or privileged information of Tekelec has already been, or shall be immediately,
delivered to Tekelec.

8.2.    Former Employee further acknowledges that as the result of his prior service as an officer and employee of
Tekelec, he has had access to, and is in possession of, information and documents protected by the attorney-client privilege and by the
attorney work product doctrine.  Former Employee understands that the privilege to hold such information and documents confidential is
Tekelec's, not his personally, and that he will not disclose the information or documents to any person or entity without the express prior written
consent of the CEO or Board of Tekelec unless he is required to do so by law.

8.3.    Former Employee's obligations set forth in this Section 8 shall be in addition to, and not instead of, Former
Employee's obligations under any written Nondisclosure Agreement.

9.    ENFORCEMENT OF SECTIONS 7 AND 8

Former Employee hereby acknowledges and agrees that the services rendered by him to Tekelec in the course of
his prior employment were of a special and unique character, and that

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breach by him of any provision of the covenants set forth in Sections 7
and 8 of this Agreement will cause Tekelec irreparable injury and damages.  Former Employee expressly agrees that Tekelec shall be entitled,
in addition to all other remedies available to it whether at law or in equity, to injunctive or other equitable relief to secure their enforcement.

The parties hereto expressly agree that the covenants contained in Sections 7 and 8 hereof are reasonable in scope,
duration and otherwise; however, if any of the restraints provided in said covenants are adjudicated to be excessively broad as to geographic
area or time or otherwise, said restraint shall be reduced to whatever extent is reasonable and the restraint shall be fully enforced in such
modified form.  Any provisions of said covenants not so reduced shall remain in full force and effect.

10.    PROHIBITION AGAINST DISPARAGEMENT

10.1.    Former Employee agrees that for a period of two years following the Effective Date any communication,
whether oral or written, occurring on or off the premises of Tekelec, made by him or on his behalf to any person or entity (including, without
limitation, any Tekelec employee, customer, vendor, supplier, any competitor, any media entity and any person associated with any media)
which in any way relates to Tekelec (or any of its subsidiaries) or to Tekelec's or any of its subsidiaries' directors, officers, management or
employees:  (a) will be truthful; and (b) will not, directly or indirectly, criticize, disparage, or in any manner undermine the reputation or business
practices of Tekelec or its directors, officers, management or employees.

10.2.    The only exceptions to Section 10.1 shall be:  (a) truthful statements privately made to (i) the CEO of Tekelec, (ii)
any member of Tekelec's Board, (iii) Tekelec's auditors, (iv) inside or outside counsel of Tekelec, (v) Former Employee's counsel or (vi) Former
Employee's spouse; (b) truthful statements lawfully compelled and made under oath in connection with a court or government administrative
proceeding; and (c) truthful statements made to specified persons upon and in compliance with prior written authorization from Tekelec's CEO
or Board to Former Employee directing him to respond to inquiries from such specified persons.

11.    COOPERATION

Former Employee agrees that for a period of five years commencing with the Effective Date he will cooperate fully
and reasonably with Tekelec in connection with any future or currently pending matter, proceeding, litigation or threatened litigation:  (1)
directly or indirectly involving Tekelec (which, for purposes of this section, shall include Tekelec and each of its current and future subsidiaries,
successors or permitted assigns); or (2) directly or indirectly involving any director, officer or employee of Tekelec (with regard to matters
relating to such person(s) acting in such capacities with regard to Tekelec business).  Such cooperation shall include making himself available
upon reasonable notice at reasonable times and places for consultation and to testify truthfully (at Tekelec's expense for reasonable,
pre-approved out-of-pocket travel costs plus a daily fee equal to one-twentieth of his monthly severance compensation under Section 6.2 hereof
for each full or partial day during which Former Employee makes himself so available) in any action as reasonably requested by the CEO or
the Board of Directors.  Former Employee further agrees to immediately notify Tekelec's CEO in writing in the event that he receives any legal process or other

                                                    7

communication purporting to require or request him to produce testimony, documents, information or things in any manner
related to Tekelec, its directors, officers or employees, and that he will not produce testimony, documents, information or other things with
regard to any pending or threatened lawsuit or proceeding regarding Tekelec without giving Tekelec prior written notice of the same and
reasonable time to protect its interests with respect thereto.  Former Employee further promises that when so directed by the CEO or the
Board of Directors, he will make himself available to attend any such legal proceeding and will truthfully respond to any questions in any
manner concerning or relating to Tekelec and will produce all documents and things in his possession or under his control which in any
manner concern or relate to Tekelec.  Former Employee covenants and agrees that he will immediately notify Tekelec's CEO in writing in the
event that he breaches any of the provisions of Sections 7, 8, 10 or 11 hereof.

12.    SOLE ENTITLEMENT

Former Employee acknowledges and agrees that his sole entitlement to compensation, payments of any kind,
monetary and nonmonetary benefits and perquisites with respect to his prior Tekelec relationship (as an officer and employee) is as set forth in
the Severance Plan, this Agreement, the Company's bonus plan for officers as in effect from time to time, stock option and warrant
agreements, COBRA, and such other written agreements and securities between Tekelec and Former Employee as may exist or as may be
set forth on Exhibit B hereto.

13.    RELEASE OF CLAIMS

13.1.    General.  Former Employee does hereby and forever release and discharge Tekelec and the
predecessor corporation of Tekelec as well as the successors, current, prior or future shareholders of record, officers, directors, heirs,
predecessors, assigns, agents, employees, attorneys, insurers and representatives of each of them, past, present or future, from any and all
cause or causes of action, actions, judgments, liens, indebtedness, damages, losses, claims, liabilities and demands of any kind or character
whatsoever, whether known or unknown, suspected to exist or not suspected to exist, anticipated or not anticipated, asserted or unasserted,
which are existing on or arising prior to the date of this Agreement and which, directly or indirectly, in whole or in part, relate or are attributable
to, connected with, or incidental to the previous employment of Former Employee by Tekelec, the separation of that employment, and any
dealings between the parties concerning Former Employee's employment existing prior to the date of execution of this Agreement, excepting
only those obligations expressly recited herein or to be performed hereunder.  Nothing contained in this Section 13 shall affect any rights,
claims or causes of action which Former Employee may have (1) with respect to his outstanding stock options, warrants or other stock
subscription rights to purchase Tekelec Common Stock or other securities under the terms and conditions thereof; (2) as a shareholder of
Tekelec; (3) to indemnification by Tekelec, to the extent required under the provisions of Tekelec's Articles of Incorporation, Tekelec's Bylaws,
the California General Corporation Law, insurance or contracts, with respect to matters relating to Former Employee's prior service as a
director, an officer, employee and agent of Tekelec; (4) with respect to his eligibility for severance payments under the Severance Plan or any
other written agreement listed on Exhibit B hereto; and (5) to make claims against or seek indemnification or contribution from anyone not
released by the first sentence of this Section 13 with respect to any

                                                    8

matter or anyone released by the first sentence of this Section 13 with
respect to any matter not released thereby; or (6) with respect to Tekelec's performance of this Agreement.  Further, Former Employee waives
specifically any and all rights or claims Former Employee has or may have under the ADEA, and acknowledges that such waiver is given
voluntarily in exchange for certain consideration included in the severance benefits being paid pursuant to this Agreement.

13.2.    Waiver of Unknown Claims.  Former Employee acknowledges that he is aware that he may hereafter
discover claims or facts different from or in addition to those he now knows or believes to be true with respect to the matters herein released,
and he agrees that this release shall be and remain in effect in all respects a complete general release as to the matters released and all
claims relative thereto which may exist or may heretofore have existed, notwithstanding any such different or additional facts.  Former
Employee acknowledges that he has been informed of Section 1542 of the Civil Code of the State of California, and does hereby expressly
waive and relinquish all rights and benefits which he has or may have under said Section (or any similar state statute), which reads as
follows:

"A general release does not extend to claims which the creditor does not know or suspect to exist in his favor at
the time of executing the release, which if known by him must have materially affected his settlement with the debtor."

13.3.    Covenant Not to Sue on Matters Released.  Former Employee covenants that he will not make, assert or
maintain against any person or entity that Former Employee has released in this Agreement, any claim, demand, action, cause of action, suit
or proceeding arising out of or in connection with the matters herein released, including, but not limited to, any claim or right under the ADEA,
or any other federal or state statute or regulation; provided, however, this paragraph will not bar:  (1) a challenge under the Older Workers
Benefit Protection Act ("OWBPA") to enforceability of the waiver and release or ADEA claims set forth in this Agreement or (2) filing
a charge or participation in an investigation or proceeding conducted by the U.S. Equal Employment Opportunity Commission or other
governmental agency with jurisdiction concerning the terms, conditions and privileges of employment; provided, however, that by signing this
Agreement, Former Employee waives his right to, and shall not seek or accept any monetary or other relief of any nature whatsoever in
connection with, any such charges, investigation or proceedings.  Former Employee represents and warrants that he has not assigned or
transferred, purported to assign or transfer, and will not assign or transfer, any matter or claim herein released.  Former Employee represents
and warrants that he knows of no other person or entity which claims an interest in the matters or claims herein released.  Former Employee
agrees to, and shall at all times, indemnify and hold harmless each person and entity that Former Employee has released in this Agreement
against any claim, demand, damage, debt, liability, account, action or cause of action, or cost or expense, including attorneys' fees, resulting or
arising from any breach of the representations, warranties and covenants made herein.

                                                    9

14.    ASSIGNMENT

Former Employee represents and warrants that he has not heretofore assigned, transferred or granted or
purported to assign, transfer or grant any claims, entitlement, matters, demands or causes of action herein released, disclaimed, discharged or
terminated, and agrees to indemnify and hold harmless Tekelec from and against any and all costs, expense, loss or liability incurred by
Tekelec as a consequence of any such assignment, transfer or grant.

15.    FORMER EMPLOYEE REPRESENTATIONS

Notwithstanding that this Agreement is being entered into subsequent to the Termination Date, except as listed by
Former Employee on Exhibit C, from the period beginning on the Termination Date to the Effective Date, Former Employee represents and
warrants that he has not acted or omitted to act in any respect which directly or indirectly would have constituted a violation of Sections 7, 8, 10
or 11 herein had this Agreement then been in effect.

16.    MISCELLANEOUS

16.1.    Notices.  All notices and demands referred to or required herein or pursuant hereto shall be in
writing, shall specifically reference this Agreement and shall be deemed to be duly sent and given upon actual delivery to and receipt by the
relevant party (which notice, in the case of Tekelec, must be from an officer of Tekelec) or five days after deposit in the U.S. mail by certified or
registered mail, return receipt requested, with postage prepaid, addressed as follows (if, however, a party has given the other party due notice
of another address for the sending of notices, then future notices shall be sent to such new address):

(a)If to Tekelec:Tekelec

                    5200 Paramount Parkway

                    Morrisville, North Carolina  27560

                    Attn:  Chief Executive Officer

With a copy to:General Counsel Tekelec

                    5200 Paramount Parkway

                    Morrisville, North Carolina 27560

                    -and-

                    Katherine Ashton

                    Bryan Cave LLP

                    120 Broadway, Suite 300

                    Santa Monica, California 90401-2386

(b)If to Former Employee:Eric Gehl

                    1700 Bowling Green Trail

                    Raleigh, NC 27613

                                                    10

16.2.    Legal Advice and Construction of Agreement.  Both Tekelec and Former Employee have received (or
have voluntarily and knowingly elected not to receive) independent legal advice with respect to the advisability of entering into this Agreement
and with respect to all matters covered by this Agreement and neither has been entitled to rely upon or has in fact relied upon the legal or other
advice of the other party or such other party's counsel (or employees) in entering into this Agreement.

16.3.    Parties' Understanding.  Tekelec and Former Employee state that each has carefully read this
Agreement, that it has been fully explained to it/him by its/his attorney (or that it/he has voluntarily and knowingly elected not to receive such
explanation), that it/he fully understands its final and binding effect, that the only promises made to it/him to sign the Agreement are those
stated herein, and that it/he is signing this Agreement voluntarily.

16.4.    Recitals and Section Headings.  Each term of this Agreement is contractual and not merely a recital.  All
recitals are incorporated by reference into this Agreement.  Captions and section headings are used herein for convenience only, are not part
of this Agreement and shall not be used in interpreting or construing it.

16.5.    Entire Agreement.  This Agreement constitutes a single integrated contract expressing the entire
agreement of the parties with respect to the subject matter hereof and supersedes all prior and contemporaneous oral and written agreements
and discussions with respect to the subject matter hereof.  Notwithstanding the foregoing, the parties understand and agree that any
Nondisclosure Agreement and all other written agreements between Former Employee and Tekelec are separate from this Agreement and,
subject to the terms and conditions of each such agreement, shall survive the execution of this Agreement, and nothing contained in this
Agreement shall be construed as affecting the rights or obligations of either party set forth in such agreements.

16.6.    Severability.  In the event any provision of this Agreement or the application thereof to any circumstance
shall be determined by arbitration pursuant to Section 16.10 of this Agreement or held by a court of competent jurisdiction to be invalid, illegal
or unenforceable, or to be excessively broad as to time, duration, geographical scope, activity, subject or otherwise, it shall be construed to be
limited or reduced so as to be enforceable to the maximum extent allowed by applicable law as it shall then be in force, and if such
construction shall not be feasible, then such provision shall be deemed to be deleted herefrom in any action before that arbitral body or court,
and all other provisions of this Agreement shall remain in full force and effect.

16.7.    Amendment and Waiver.  This Agreement and each provision hereof may be amended, modified,
supplemented or waived only by a written document specifically identifying this Agreement and signed by each party hereto.  Except as
expressly provided in this Agreement, no course of dealing between the parties hereto and no delay in exercising any right, power or remedy
conferred hereby or now or hereafter existing at law, in equity, by statute or otherwise, shall operate as a waiver of, or otherwise prejudice, any
such rights, power or remedy.

16.8.    Cumulative Remedies.  None of the rights, powers or remedies conferred herein shall be mutually
exclusive, and each such right, power or remedy shall be cumulative and in

                                                    11

addition to every other right, power or remedy, whether conferred
herein or now or hereafter available at law, in equity, by statute or otherwise.

16.9.    Specific Performance.  Each party hereto may obtain specific performance to enforce its/his rights
hereunder and each party acknowledges that failure to fulfill its/his obligations to the other party hereto would result in irreparable
harm.

16.10.    Arbitration.  Except for the right of either party to apply to a court of competent jurisdiction for a
Temporary Restraining Order to preserve the status quo or prevent irreparable harm, any dispute or controversy between Tekelec and Former
Employee under this Agreement involving its interpretation or the obligations of a party hereto shall be determined by binding arbitration in
accordance with the commercial arbitration rules of the American Arbitration Association, in the County of Wake, State of North
Carolina.

Arbitration may be conducted by one impartial arbitrator by mutual agreement.  In the event that the parties are unable
to agree on a single arbitrator within 30 days of first demand for arbitration, the arbitration shall proceed before a panel of three arbitrators, one
of whom shall be selected by Tekelec and one of whom shall be selected by Former Employee, and the third of whom shall be selected by the
two arbitrators selected.  All arbitrators are to be selected from a panel provided by the American Arbitration Association.  The arbitrators shall
have the authority to permit discovery, to the extent deemed appropriate by the arbitrators, upon request of a party.  The arbitrators shall have
no power or authority to add to or, except as otherwise provided by Section 16.6 hereof, to detract from the agreements of the parties, and the
prevailing party shall recover costs and attorneys' fees incurred in arbitration.  The arbitrators shall have the authority to grant injunctive relief
in a form substantially similar to that which would otherwise be granted by a court of law.  The arbitrators shall have no authority to award
punitive or consequential damages.  The resulting arbitration award may be enforced, or injunctive relief may be sought, in any court of
competent jurisdiction.  Any action arising out of or relating to this Agreement may be filed only in the Superior Court of the County of Wake,
North Carolina or the United States District Court for the Eastern District of North Carolina.

16.11.    North Carolina Law and Location.  This Agreement was negotiated, executed and delivered within the
State of North Carolina, and the rights and obligations of the parties hereto shall be construed and enforced in accordance with and governed
by the internal (and not the conflict of laws) laws of the State of North Carolina applicable to the construction and enforcement of contracts
between parties resident in North Carolina which are entered into and fully performed in North Carolina.  Any action or proceeding arising out
of, relating to or concerning this Agreement that is not subject to the arbitration provisions set forth in Section 16.10 above shall be filed in the
state courts of the County of Wake, State of North Carolina or in a United States District Court for the Eastern District of North Carolina and in
no other location.  The parties hereby waive the right to object to such location on the basis of venue.

16.12.    Attorneys' Fees.  In the event a lawsuit is instituted by either party concerning a dispute under this
Agreement, the prevailing party in such lawsuit shall be entitled to recover from the losing party all reasonable attorneys' fees, costs of suit and
expenses (including the reasonable

                                                    12

fees, costs and expenses of appeals), in addition to whatever damages or other relief the injured party is otherwise entitled to under law or equity in connection with such dispute.

16.13.    Force Majeure.  Neither Tekelec nor Former Employee shall be deemed in default if its/his performance
of obligations hereunder is delayed or become impossible or impracticable by reason of any act of God, war, fire, earthquake, strike, civil
commotion, epidemic, or any other cause beyond such party's reasonable control.

16.14.    Counterparts.  This Agreement may be executed in two or more counterparts, each of which shall be
deemed an original, but all of which together shall constitute one and the same instrument.

16.15.    Successors and Assigns.  Neither party may assign this Agreement or any of its rights or obligations
hereunder (including, without limitation, rights and duties of performance) to any third party or entity, and this Agreement may not be
involuntarily assigned or assigned by operation of law, without the prior written consent of the non-assigning party, which consent may be
given or withheld by such non-assigning party in the sole exercise of its discretion, except that Tekelec may assign this Agreement to a
corporation acquiring: (1) 50% or more of Tekelec's capital stock in a merger or acquisition; or (2) all or substantially all of the assets of
Tekelec in a single transaction; and except that Former Employee may transfer or assign his rights under this Agreement voluntarily,
involuntarily or by operation of law upon or as a result of his death to his heirs, estate and/or personal representative(s).  Any prohibited
assignment shall be null and void, and any attempted assignment of this Agreement in violation of this section shall constitute a material
breach of this Agreement and cause for its termination by and at the election of the other party hereto by notice.  This Agreement shall be
binding upon and inure to the benefit of each of the parties hereto and each person or entity released pursuant to Section 12 hereof and,
except as otherwise provided herein, their respective legal successors and permitted assigns.

16.16.    Payment Procedure.  Except as otherwise explicitly provided herein or in the Severance Plan, all
payments by Tekelec to Former Employee or by Former Employee to Tekelec due hereunder may be by, at the paying party's election, cash,
wire transfer or check.  Except as explicitly provided herein or in the Severance Plan, neither party may reduce any payment or obligation due
hereunder by any amount owed or believed owed to the other party under any other agreement, whether oral or written, now in effect or
hereafter entered into.

16.17.    Survival.  The definitions, representations and warranties herein as well as obligations set forth in
Sections 7, 8 and 10-16 shall survive any termination of this Agreement for any reason whatsoever.

16.18.    No Admission.  Neither the entry into this Agreement nor the giving of consideration hereunder shall
constitute an admission of any wrongdoing by Tekelec or Former Employee.

16.19.    Limitation of Damages.  Except as expressly set forth herein, in any action or proceeding arising out of,
relating to or concerning this Agreement, including any claim of breach of contract, liability shall be limited to compensatory damages
proximately caused by the breach and

                                                    13

neither party shall, under any circumstances, be liable to the other party for consequential, incidental,
indirect or special damages, including but not limited to lost profits or income, even if such party has been apprised of the likelihood of such
damages occurring.

16.20.    Pronouns.  As used herein, the words "he", "him", "his" and
"himself" shall be deemed to refer to the feminine as the identity of the person referred to and the context may require.

16.21.    Effectiveness.  This Agreement shall become effective upon execution by the later of the parties hereto to
execute this Agreement.

17.    21 DAY REVIEW PERIOD; RIGHT TO REVOKE

Tekelec hereby advises Former Employee in writing to consult with an attorney prior to executing this Agreement
and represents and warrants to Tekelec that he has done so, and further acknowledges that he has been given a period of 21 days within
which to consider the terms and provisions of this Agreement with his attorney.  If Former Employee has executed and delivered to Tekelec
this Agreement prior to the expiration of such 21-day period, then in doing so, Former Employee acknowledges that he has unconditionally and
irrevocably waived his right to that unexpired portion of such 21-day period.  In addition, Former Employee shall have the right to revoke this
Agreement for a period of seven days following the date on which this Agreement is signed by sending written notification of such revocation
directly to each of Tekelec, General Counsel of Tekelec and Katherine Ashton at the addresses specified in Section 16.1, supra, via hand
delivery.

	
TEKELEC

                   By:/s/ Judith Barnett

                    Print Name:Judith Barnett

                    Print Title:VP Human Resources

                    Date:Jan. 18, 2008	
Eric Gehl

                   Signature:/s/ Eric Gehl

Date:     December 21, 2007

                                                    14

EXHIBIT A

OUTSTANDING STOCK PURCHASE RIGHTS

	
Type of Security

[e.g., stock option, SAR, RSU warrant, etc.]
	
Date Issued
	
Maximum Number of Shares Currently Purchasable or
Issuable
	
Purchase Price Per Share
	
Termination Date

	
Stock Options  (NQ)
	
10/14/04
	
25,000
	
17.38
	
2/29/08

	
Stock Options  (NQ)
	
10/14/04
	
9,375
	
17.38
	
2/29/08

 

 

EXHIBIT B

LIST OF OTHER AGREEMENTS (Pursuant to  §§12 and 13)

 

 

EXHIBIT C

EXCEPTIONS (Pursuant to  §15)

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