Calix Sets Date to Release First Quarter 2010 Results

PETALUMA, Calif.--(BUSINESS WIRE)-- Calix, Inc. (NYSE: CALX) today announced that it plans to release first quarter 2010 financial results after the market closes on Thursday, May 6, 2010.

Calix will host a conference call to discuss its first quarter 2010 results at 1:30pm PDT (4:30pm EDT) on the same day. Investors can listen to a live webcast of the conference call by visiting the Calix Investor Relations website at http://investor-relations.calix.com. A replay of the web cast will also be available at http://investor-relations.calix.com following the completion of the call.

About Calix

Calix is a leading provider in North America of broadband communications access systems and software for copper- and fiber- based network architectures that enable communications service providers to connect to their residential and business subscribers. Calix has shipped over six million ports of its Unified Access Infrastructure portfolio to more than 500 North American and international customers, whose networks serve over 32 million subscriber lines in total.

    Source: Calix, Inc.

Released April 6, 2010