NAPERVILLE, Ill., Jan. 19 /PRNewswire-FirstCall/ -- Tellabs will host an investor teleconference to discuss its fourth-quarter and year-end 2009 results at 7:30 a.m. Central Standard Time on Tuesday, Jan. 26. The results news release will be available on http://www.tellabs.com/ at 6:00 a.m. Central Standard Time that day. To access a simultaneous webcast of the teleconference, go to the Tellabs Web site at http://www.tellabs.com/ and click on the webcast icon. From this site, you can download the necessary software and listen to the teleconference. Tellabs encourages you to review the site before the teleconference to ensure your computer is configured properly. A taped replay of the call will be available at approximately 10:30 a.m. Central Standard Time on Jan. 26. This toll-free replay will be available until 10:30 p.m. Central Standard Time on Thursday, Jan. 28. A podcast of the call will be posted at http://www.tellabs.com/news/feeds/ on the afternoon of Jan. 26. To listen to the teleconference replay, call 800-642-1687. (Outside the United States, call 706-645-9291.) When prompted, enter the Tellabs conference ID number: 50630155. About Tellabs -- Tellabs helps customers succeed through innovation. That's why 43 of the top 50 global telecom service providers choose our mobile, optical and business solutions. We help telecom service providers, independent operating companies, MSO/cable TV companies, enterprises and government agencies get ahead by adding revenue, reducing expenses and optimizing networks. With wireless and wireline networks in more than 90 countries, we enrich people's lives by innovating the way the world connects(TM). Tellabs (NASDAQ:TLAB) is part of the NASDAQ Global Select Market, Ocean Tomo 300(TM) Patent Index, the S&P 500 and several corporate responsibility indexes including FTSE4Good and eight KLD indexes. http://www.tellabs.com/ Tellabs® and 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. DATASOURCE: Tellabs CONTACT: Media, Marta Kwiatek, +1-630-798-2524, , or Investors, Tom Scottino, +1-630-798-3602, , both of Tellabs Web Site: http://www.tellabs.com/

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