Tekelec Nominates Krish Prabhu for Election to Board of Directors

MORRISVILLE, N.C.--(Business Wire)--
Tekelec (NASDAQ: TKLC) today announced that the Company's Board of
Directors has nominated Krish Prabhu for election to the Board at the
Company's upcoming May 16 Annual Shareholders' Meeting.

Prabhu retired as chief executive officer and president of Tellabs
in February, 2008. Prior to joining Tellabs in 2004, Prabhu was a
venture partner at Morgenthaler Ventures from 2001 until 2004, where
he was involved with the funding and development of several
communications and information technology companies. Prabhu served as
chief operating officer of Alcatel Telecom from 1999-2001 and as chief
executive officer of Alcatel USA from 1997 to 1999. He began his
telecommunications career in 1980 at AT&T Bell Laboratories as a
member of the technical staff. Among his degrees, Prabhu holds a
Master of Science degree and a Ph.D. in electrical engineering from
the University of Pittsburgh. He has previously served on the boards
of public companies Symmetricom, Agere, ECI Telecom and Freescale.

"Krish Prabhu brings technical depth, international breadth,
customer relationships and leadership experience, drawing from over
twenty-five years in telecommunications," said Mark Floyd, Chairman of
the Board of Directors, Tekelec. "I believe Krish would make an
excellent addition to the Tekelec Board, and the company will benefit
from his substantial experience if he is elected in May."

Important Additional Information

In connection with the Company's 2008 Annual Meeting of
Shareholders, on April 9, 2008, the Company filed a proxy statement
with the Securities and Exchange Commission (the "Commission") and
began mailing the proxy statement and proxy card to shareholders
entitled to vote at the Annual Meeting. The proxy statement and other
documents relating to the Annual Meeting can be obtained free of
charge from the Commission's website at www.sec.gov, from the
Company's website at www.tekelec.com, or by written request to
Tekelec, 5200 Paramount Parkway, Morrisville, North Carolina 27560,
Attention: Corporate Secretary.

About Tekelec

Tekelec leverages its global leadership in core multimedia session
control and network intelligence to ensure scalable, secure and highly
available communications. The company's leading signaling solutions
enable the interworking of different network applications,
technologies and protocols, providing a smooth transition to
next-generation networks. Corporate headquarters are located near
Research Triangle Park in Morrisville, N.C., U.S.A., with research and
development facilities and sales offices throughout the world. For
more information, please visit www.tekelec.com.

FORWARD-LOOKING STATEMENTS

Certain statements made in this press release are forward looking,
reflect the Company's current intent, belief or expectations and
involve certain risks and uncertainties. The Company's actual future
performance may not meet the Company's expectations. As discussed in
the Company's Annual Report on Form 10-K for 2007 (the "2007 Form
10-K") and its other filings with the Securities and Exchange
Commission (the "Commission"), the Company's future operating results
are difficult to predict and subject to significant fluctuations.
Factors that may cause future results to differ materially from the
Company's current expectations, in addition to those identified in the
Company's 2007 Form 10-K and its other filings with the Commission,
include, among others, changes in the market price of the Company's
common stock and changes in the Company's financial results, financial
condition and cash requirements. The Company undertakes no obligation
to publicly update any forward-looking statements whether as a result
of new information, future events or otherwise.

Tekelec
Joanne Latham
Director, Corporate Marketing
919-653-9655
joanne.latham@tekelec.com

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