Tellabs to Announce First-Quarter Results on April 26


NAPERVILLE, Ill., April 12, 2011 -- Tellabs will host an investor teleconference to discuss its first quarter 2011 results at 7:30 a.m. Central Time on Tuesday, April 26. The results news release will be available on www.tellabs.com at 6:00 a.m. Central Time that day.

To access a simultaneous webcast of the teleconference, go to the Tellabs website at 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 Time on Tuesday, April 26. This toll-free replay will be available until 10:30 p.m. Central Time on Thursday, April 28. A podcast of the call will be posted at www.tellabs.com/news/feeds/ on the afternoon of April 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: 57860364.

About Tellabs
Tellabs innovations enable the mobile Internet and help our customers succeed. That's why 43 of the top 50 global communications service providers choose our mobile, optical, business and services solutions. We help them get ahead by adding revenue, reducing expenses and optimizing networks.

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 the Maplecroft Climate Innovation Index, FTSE4Good and eight FTSE KLD indexes. www.tellabs.com

CONTACT: media, Marta Kwiatek, +1-630-798-2524, marta.kwiatek@tellabs.com, or Ariana Nikitas, +1-630-798-2532, ariana.nikitas@tellabs.com, or investors, Tom Scottino, +1-630-798-3602, tom.scottino@tellabs.com, all of Tellabs

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