Press Release

Zhone Technologies to Report Fourth Quarter 2008 Financial Results

Oakland, CA — January 7, 2009 — Zhone Technologies, Inc. (NASDAQ: ZHNE), the global leader in single-platform delivery of voice, DSL, EFM, FTTx and wireless services, today announced that the company will report its fourth quarter 2008 financial results on Wednesday, January 28, 2009, after the close of regular market trading.

Zhone will conduct a conference call and audio webcast to discuss further details of its fourth quarter 2008 results at approximately 2:00 p.m. PT / 5:00 p.m. ET on Wednesday, January 28, 2009. This call is open to the public by dialing +1 (866) 543-6407 for U.S. callers and +1 (617) 213-8898 for international callers and then entering passcode 13147718. 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 33011332. 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 -- Access for a Converging World

Zhone Technologies, Inc. (NASDAQ: ZHNE) is a global leader in multi-service access network solutions, serving more than 700 of the world's most innovative network operators. The company offers the industry's broadest fully-integrated portfolio of MSAP, FTTx, EFM and Wi-Fi access technologies, enabling a full suite of services, including residential and business broadband, VoIP, and High-Definition IPTV. Zhone's converged multi-service access platform helps operators rapidly deploy premium services using copper, fiber, and wireless while improving network agility and reducing costs. www.zhone.com

Contacts:

Zhone Investor Relations
Tel: +1 510-777-7013
Fax: +1 510-777-7001
Email: investor-relations@zhone.com
   Zhone Public Relations
Tel : +1 404-460-8578
Email: aurora.arlet@edelman.com
     

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