Press Release

Zhone Technologies to Report Second Quarter 2007 Financial Results

Oakland, CA — July 3, 2007 — 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 second quarter 2007 financial results on Tuesday, July 24, 2007, after the close of regular market trading.

Zhone will conduct a conference call and audio webcast to discuss further details of its second quarter 2007 results at approximately 2:00 p.m. PT / 5:00 p.m. ET on Tuesday, July 24, 2007. This call is open to the public by dialing +1 (888) 680-0879 for U.S. callers and +1 (617) 213-4856 for international callers and then entering passcode 31271514. 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 66796909. 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.

Zhone Technologies, Inc. (NASDAQ: ZHNE) is a global provider of advanced communications equipment to more than 600 operators in both emerging and established markets. Zhone’s market-leading Broadband Loop Carrier equipment enables operators to rapidly deploy revenue-generating access services using their existing infrastructure, while providing a migration path to a cost-efficient, all-IP access network. The company’s products address a broad range of applications including residential and business broadband, VoIP, IPTV, and Ethernet over both copper and fiber access lines. Zhone's advanced networking solutions include the Single Line Multi-Service architecture (SLMS™), Multi-Access Line Concentrator (MALC™), Raptor™ ATM/IP DSLAMs, GigaMux™ Optical Transport Systems and Zhone Management System (ZMS™). 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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