TKLC Tekelec (MM)

Attorney Advertising. The law firm of Wolf Haldenstein Adler Freeman & Herz LLP is investigating possible breaches of fiduciary duty by the Board of Directors of Tekelec (“Tekelec” or the “Company”) [NASDAQ:TKLC] arising out of the proposed acquisition of Tekelec by a consortium led by Siris Capital Group, LLC, and including affiliates of The ComVest Group, funds and accounts managed by GSO Capital Partners LP, Sankaty Advisors LLC, ZelnickMedia and other Siris limited partners and affiliates (“Siris”).

On Monday, November 7, 2011, Tekelec announced that Siris will acquire Tekelec pursuant to an all cash offer. Under the terms of the agreement, Tekelec stockholders will receive cash of $11.00 in exchange for each share of Tekelec common stock. However, the Company may not have adequately shopped itself before entering into this transaction and, pursuant to this proposed transaction, Siris may be underpaying for Tekelec, thus unlawfully harming Tekelec shareholders.

Wolf Haldenstein has been representing individual and institutional investors for many years, serving as lead counsel in numerous cases in U.S. federal and state courts. Please visit the Wolf Haldenstein website (http://www.whafh.com) for more information about the firm.

If you own Tekelec common stock and you wish to discuss this matter with us, or have any questions concerning your rights and interests with regard to this matter, please contact:

Gregory Nespole or Derek Behnke

Wolf Haldenstein Adler Freeman & Herz LLP 270 Madison Avenue New York, New York 10016 Phone Numbers: (800) 575-0735 (212) 545-4600 Email:  

nespole@whafh.com

Classmember@whafh.com

Website: http://www.whafh.com

Attorney Advertising. Prior Results Do Not Guarantee A Similar Outcome.