Calix to Present at Upcoming Investor Conferences

PETALUMA, Calif.--(BUSINESS WIRE)-- Calix (NYSE: CALX) today announced that Company management will present at the UBS Global Technology and Services Conference and the RBC Capital Markets 2010 Technology, Media & Communications Conference.

UBS Global Technology and Services Conference

Date: Tuesday, June 8, 2010

Time: 2:00 PM (ET)

Location: Crowne Plaza Times Square, 1605 Broadway, New York, 10019

RBC Capital Markets 2010 Technology, Media & Communications Conference

Date: Thursday, June 10, 2010

Time: 1:00 PM (ET)

Location: Hilton New York, 1335 Avenue of the Americas, New York, 10019

Live and archived audio webcasts of the presentations will be available on the investor relations section of the Calix website: http://investor-relations.calix.com.

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 enables communications service providers to provide a wide range of revenue-generating services, from basic voice and data to advanced broadband services, over legacy and next-generation access networks. The Calix Unified Access Portfolio helps these companies to transform their legacy and mixed protocol access networks to fiber and Ethernet. 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. For more information, visit the Calix website at www.calix.com.

    Source: Calix

Released June 3, 2010