BIGBAND NETWORKS TO PRESENT AT THE COWEN AND COMPANY CONFERENCE

May 25, 2007

REDWOOD CITY, Calif., May 25, 2007—BigBand Networks, Inc., (NASDAQ: BBND), a leading provider of broadband multimedia infrastructure for video, voice and data, today announced that it will present to the investment community at the Cowen and Company 35th Annual SMid-Cap Technology Conference on Thursday, May 31, 2007 at 3:05 p.m. Eastern Daylight Time. 

The conference will take place at The New York Palace Hotel in New York City. A live audio webcast of the presentation will be available at http://www.corporate-ir.net/ireye/conflobby.zhtml?ticker=BBND&item_id=1522759.

The presentation will also be available on the Investor Relations section of the Company’s corporate website at www.bigbandnet.com and via replay, beginning approximately two hours after its completion.

About BigBand Networks

BigBand Networks, Inc. is a leading provider of broadband multimedia infrastructure for video, voice and data. The company's solutions are designed to process, optimize, and deliver services such as broadband Internet, VoIP, digital broadcast television, HDTV, transport of high quality video, local advertising, VOD, interactive TV and IPTV through any network. Service providers use BigBand Networks' platforms in efforts to cost-effectively expand revenue-generating offerings of rich content and advanced interactive services. Customers include cable operators, U.S. telecommunications companies, as well as leading service providers in Asia, Europe and Latin America. Founded in 1998, BigBand Networks is based in Redwood City, Calif., with offices worldwide. For more information, please call 650-995-5000, email info@bigbandnet.com or visit www.bigbandnet.com.