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FOR IMMEDIATE RELEASE
Sep. 23, 2008

Tellabs investor conference to be webcast live

Naperville, Ill. — Tellabs is hosting an investor conference on Thursday, Nov. 13, 2008, beginning at 10 a.m. Central Standard Time. This all-day event will combine presentations with Q&A sessions.

Rob Pullen, Tellabs' president and chief executive officer, and other members of the Tellabs senior executive team will discuss Tellabs' strategy, vision, markets, products and services. Attendees will gain a better understanding of Tellabs' strategy for improving profitability and growth.

Interested investors can access a live video and audio webcast of the presentation at www.tellabs.com. An on-demand replay of the webcast will be available starting 24 hours after the presentation and will be archived for 30 days.

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 Global Select Market, Ocean Tomo 300™ Patent Index, the S&P 500 and several corporate responsibility indexes including FTSE4Good and eight KLD indexes. www.tellabs.com

MEDIA CONTACT:

Ariana Nikitas
+1.630.798.2532

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.