Tekelec and NICE Systems Sign Agreement for Sale of IEX Corporation

Business Wire, April 28, 2006

MORRISVILLE, N.C. -- Tekelec (NASDAQ: TKLC) and NICE Systems (NASDAQ: NICE) announced that they have entered into a definitive agreement for the purchase by Nice Systems from Tekelec of all of the stock of Tekelec's wholly owned subsidiary, IEX Corporation, a leading global provider of workforce management and optimization technology for contact centers. The purchase price is $200 million in cash, subject to a possible working capital adjustment. The transaction is scheduled to close during the second quarter of 2006, and the closing is subject to customary regulatory approvals and closing conditions.

Commenting on the sale, Frank Plastina, President and CEO of Tekelec said, "We are very pleased with this transaction because it converts a non-telecom business unit into cash at an attractive valuation and under favorable terms. IEX has been an important contributor to our financial performance for the last several years, but it was not a component of our long-term telecom systems growth strategy. This deal will significantly strengthen our balance sheet and enhance our ability to consider complementary strategic opportunities in our core business. The price and terms of this transaction confirm IEX's position as a leading solution provider in a rapidly consolidating industry. We believe that NICE Systems is best suited for the IEX acquisition, due to the clear synergies in market leadership, technology innovation, engineering expertise, and management experience.

"I would like to thank Debbie May and her management team for their hard work in building IEX into an industry leader. We believe that IEX's customers and employees will be very well served as a result of this transaction."

Tekelec has no immediate plans for the utilization of the net proceeds it expects to receive upon closing from this transaction.

Haim Shani CEO of NICE Systems commented, "We are very happy to have IEX join the NICE family. IEX was the natural choice for us in expanding and accelerating the execution of our strategy to lead the Insight from Interactions(TM) revolution in the contact center and enterprise. We are excited about redefining our market space together and introduce a paradigm shift in how contact center management and enterprise executives make decisions, monitor and improve performance."

FORWARD-LOOKING STATEMENTS

Certain statements made in this press release are forward looking, reflect Tekelec's current intent, belief or expectations and involve certain risks and uncertainties. Tekelec's actual future performance may not meet the Company's expectations. As discussed in the Tekelec Annual Report on Form 10-K for the year ended December 31, 2004 (the "2004 Form 10-K") and other filings with 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 its 2004 Form 10-K and other Commission filings, include, among others, the possibility that the IEX sale will not close, the risk of significant working capital adjustments to the purchase price, and regulatory delay in approving the sale. Tekelec undertakes no obligation to publicly update any forward-looking statements whether as a result of new information, future events or otherwise.

About IEX

IEX Corporation is a leading provider of contact center workforce management and optimization technology. IEX has a strong market presence worldwide in over 45 countries, with more than 840,000 agents in over 2,900 sites. Founded in 1988, the company delivers award-winning products and services that help customers improve planning, enhance performance, streamline tasks and integrate data. IEX has been recognized as the 2005 Growth Strategy Leader by Frost & Sullivan and has been named the 2006 Workforce Optimization Service Leader by CRM Magazine. The company has several strategic partnerships with global contact center solution providers that enhance the value of its flagship product, the TotalView Workforce Management system. IEX is based in Richardson, Texas. For more information, visit http://www.iex.com.

About Tekelec

Tekelec is a high-performance network applications company that is accelerating the transition to IP Multimedia Subsystem (IMS) networks for service providers around the globe. With its experience at the intersection of network applications and session control, Tekelec creates the most-efficient platforms for managing media and delivering network solutions. Corporate headquarters are in Morrisville, N.C., with research and development facilities and sales offices throughout the world. For more information, please visit www.tekelec.com.

About NICE

NICE Systems (NASDAQ: NICE) is the leading provider of Insight from Interactions(TM) solutions, based on advanced analytics of unstructured multimedia content - from telephony, web, radio and video communications. NICE is revolutionizing VoIP interactions management with state-of-the-art solutions for IP contact centers, branches, and command and control centers. NICE's solutions are changing the way organizations make decisions, helping them improve business and operational performance, address security threats and be proactive. NICE has over 23,000 customers in 100 countries, including over 75 of the Fortune 100 companies. More information is available at www.nice.com.