Press Release

Zhone Technologies to Report Fourth Quarter 2007 Financial Results

Oakland, CA — January 3, 2008 — Zhone Technologies, Inc. (NASDAQ: ZHNE), a global provider of advanced communications equipment and a leader in VoIP, IPTV, and Ethernet over both copper and fiber access lines, today announced that the company will report its fourth quarter 2007 financial results on Thursday, January 31, 2008, after the close of regular market trading.

Zhone will conduct a conference call and audio webcast to discuss further details of its fourth quarter 2007 results at approximately 2:00 p.m. PT / 5:00 p.m. ET on Thursday, January 31, 2008. This call is open to the public by dialing +1 (800) 706-7741 for U.S. callers and +1 (617) 614-3471 for international callers and then entering passcode 77284281. 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 for approximately one week 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 29612165. 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, Inc. - Access for a Converging World

Zhone Technologies, Inc. (NASDAQ: ZHNE) is a provider of advanced communications equipment to more than 600 operators worldwide. The company’s broad line of access and transport networking solutions enables the full range of multi-play services, including residential and business broadband, VoIP, IPTV, and Ethernet. Zhone’s converged access platform improves network agility and reduces costs, allowing operators to rapidly deploy premium services on their existing copper and fiber infrastructure while providing a seamless migration path to an efficient, all-IP network. www.zhone.com

Contacts:

Investors
Tel: +1 510-777-7013
Fax: +1 510-777-7001
Email: investor-relations@zhone.com
   Media
Tel : +1 510-777-7020
Fax : +1 510-777-7001
Email: public-relations@zhone.com
     

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