FOR IMMEDIATE RELEASE
Nov. 22, 2010

Tellabs opens mobile Internet R&D office in Canada

Adds R&D team, technology and intellectual property from Zeugma Systems

Vancouver, British Columbia, Canada — As people buy more and more smartphones and tablets, mobile Internet usage is mushrooming. Wireless networks are struggling to keep up with the growth in mobile data traffic.

To help mobile providers address this challenge successfully, Tellabs is adding key technology, intellectual property and IP (Internet Protocol) expertise from Zeugma Systems Inc., to create a new research and development office in Vancouver.

Former Zeugma personnel will join Tellabs’ Vancouver facility to focus on developing Tellabs® Mobile Solutions. Tellabs Mobile Solutions add intelligence to the wireless networks, so service providers can cut costs while delivering better user experiences on the mobile Internet.

“To help our mobile customers succeed, we’re adding more IP expertise to enable the smart mobile Internet,” said Rob Pullen, president and CEO. “Vancouver offers a unique talent pool that can accelerate our delivery of differentiated solutions to customers. We welcome our new employees to Tellabs.”

“We’re delighted to complete our agreement and welcome Tellabs to Vancouver,” said Andrew Harries, President & CEO, Zeugma Systems Inc. “Our agreement enables Tellabs to utilize significant intellectual property and add to its team of developers focused on mobile Internet solutions.”

Terms of the agreement, in which Tellabs acquires substantially all of the assets of Zeugma Systems Inc., were not disclosed for competitive reasons.

About Tellabs — Tellabs innovations enable the mobile Internet and help our customers succeed. That’s why 44 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™ 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

MEDIA CONTACTS:

Ariana Nikitas
+1.630.798.2532

Marta Kwiatek
+1.630.798.2524

INVESTOR CONTACT:

Tom Scottino
+1.630.798.3602

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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.