SECTION 16

POWER OF ATTORNEY



 The undersigned hereby constitutes and appoints Brenda Addison and Stuart

Kupinsky, or any of them, the undersigned's true and lawful attorney-in-fact to:



 (1) execute for and on behalf of the undersigned, in the undersigned's

capacity if and when elected or appointed as an officer, director and/or 10% shareholder

of Tekelec (the "Company"), Forms 3, 4, and 5 in accordance with Section 16(a) of the

Securities Exchange Act of 1934 and the rules thereunder;



 (2) do and perform any and all acts for and on behalf of the undersigned

which may be necessary or desirable to complete and execute any such Form 3, 4, or 5

and timely file such form with the Securities and Exchange Commission and any stock

exchange or similar authority; and



 (3) take any other action of any type whatsoever in connection with the

foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best

interest of, or legally required by, the undersigned, it being understood that the

documents executed by such attorney-in-fact on behalf of the undersigned pursuant to

this Power of Attorney shall be in such form and shall contain such terms and conditions

as such attorney-in-fact may approve in such attorney-in-fact's discretion.



 The undersigned hereby grants to each such attorney-in-fact full power and

authority to do and perform any and every act and thing whatsoever requisite, necessary,

or proper to be done in the exercise of any of the rights and powers herein granted, as

fully to all intents and purposes as the undersigned might or could do if personally

present, with full power of substitution or revocation, hereby ratifying and confirming all

that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall

lawfully do or cause to be done by virtue of this power of attorney and the rights and

powers herein granted.  The undersigned acknowledges that the foregoing attorneys-in-

fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is

the Company assuming, any of the undersigned's responsibilities to comply with Section

16 of the Securities Exchange Act of 1934.



 This Power of Attorney shall remain in full force and effect until the undersigned

is no longer required to file Forms 3, 4, and 5 with respect to the undersigned's holdings

of and transactions in securities issued by the Company, unless earlier revoked by the

undersigned in a signed writing delivered to the foregoing attorneys-in-fact.  In affixing

his or her signature to this Power of Attorney, the undersigned hereby revokes any and all

previously executed Powers of Attorney for the same or similar purposes.



 IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to

be executed as of this _15_ day of August 2008.





      David R. Laube

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