Press Release

Zhone Technologies to Report Second Quarter 2010 Financial Results

Oakland, CA — July 6, 2010 — Zhone Technologies, Inc. (NASDAQ: ZHNE), a global leader in network access solutions for fiber, copper and wireless broadband infrastructures, today announced that the company will report its second quarter 2010 financial results on Wednesday, July 21, 2010, after the close of regular market trading.

Zhone will conduct a conference call and audio webcast to discuss further details of its second quarter 2010 results at approximately 2:00 p.m. PT / 5:00 p.m. ET on Wednesday, July 21, 2010. This call is open to the public by dialing +1 (800) 237-9752 for U.S. callers and +1 (617) 847-8706 for international callers and then entering passcode 18383089. The audio webcast will be simultaneously available on the Investor Relations section of Zhone's website at http://www.zhone.com/investors/.

A replay of the conference call will be available after the original call by dialing +1 (888) 286-8010 for U.S. callers and +1 (617) 801-6888 for international callers and then entering passcode 17788318. An audio webcast replay will also be available online at http://www.zhone.com/investors/ for approximately one week following the original call.

About Zhone Technologies

Zhone Technologies, Inc. (NASDAQ: ZHNE) is a global leader in all IP multi-service access solutions, serving more than 750 of the world's most innovative network operators. The IP Zhone is the only solution that enables service providers to build the network of the future…today, supporting end-to-end Voice, Data, Entertainment Social Media, Business, Mobile Backhaul and Mobility service. Zhone is committed to building the fastest and highest quality All IP Multi-Service solution for its customers. Zhone is headquartered in California and its products are manufactured in the USA in a facility that is emission, waste-water and CFC free.

Contacts:

Zhone Investor Relations
Tel: +1 510-777-7013
Fax: +1 510-777-7001
Email: investor-relations@zhone.com
   Zhone Public Relations
Tel : +1 702-644-2465
Email: sara.zavala@edelman.com
     

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