FOR IMMEDIATE RELEASE
Apr. 24, 2008

Tellabs' stockholders re-elect Class I directors
Stockholders approve amendments to incentive plan

Naperville, Ill. — At Tellabs' annual stockholder meeting today, stockholders re-elected current directors Frank Ianna, Stephanie Pace Marshall and William Souders to the Tellabs Board of Directors for three-year terms. Stockholders also ratified the appointment of Ernst & Young LLP as Tellabs' independent auditors for 2008.

Tellabs stockholders approved the amended Tellabs 2004 Incentive Plan, which is designed to strengthen the company's corporate governance practices. The amended plan prohibits re-pricing of awards, restricts the recycling of shares and authorizes 14,750,000 additional shares for future awards.

To view biographies of the Tellabs Board of Directors, please visit www.tellabs.com/about/bios/directors.shtml.

About Tellabs — Tellabs advances telecommunications networks to meet the evolving needs of users. Solutions from Tellabs enable service providers to deliver high-quality voice, video and data services over wireline and wireless networks around the world. Tellabs (NASDAQ: TLAB) is part of the NASDAQ-100 Index, NASDAQ Global Select Market and the S&P 500. www.tellabs.com

MEDIA CONTACT:

George Stenitzer
+1.630.798.3800

INVESTOR CONTACT:

Tom Scottino
+1.630.798.3602

(View media contact list.)

Tellabs® and the Tellabs logo are trademarks of Tellabs or its affiliates in the United States and/or other countries. Any other company or product names mentioned herein may be trademarks of their respective companies.