BigBand Networks Provides Innovative Advertising Solution for Astound Broadband

Pilot program leverages BigBand BMR for digital advertising insertion

June 6, 2007

REDWOOD CITY, Calif., June 6, 2007—BigBand Networks, Inc. (NASDAQ: BBND) today announced that Astound Broadband, a unit of WaveDivision Holdings, LLC, has deployed BigBand’s Broadband Multimedia-Service Router (BMR®) for video processing and digital advertising insertion. Astound is using BigBand’s platform as part of its solution to deliver regionally targeted television advertising to digital subscribers in Concord and Walnut Creek, Calif.

"As a nimble, fast growing operator, we prize innovation, and BigBand Networks has consistently delivered video technology that keeps us ahead of the curve," said Steven Weed, CEO for WaveDivision Holdings, parent company of Astound. "The BMR has enabled us to provide advanced digital advertising insertion on our analog and digital programming. In the future, we can use the BMR to support some of the more advanced developments in the industry, including addressable advertising, high-definition programming and switched broadcast.”

Astound is using the BMR to provide a range of applications. BigBand’s digital simulcast application allows Astound to transport analog content in digital format and consolidate digital advertising insertion for both analog and digital programs to improve the picture quality of the analog content and efficiency of delivery. Astound also uses BigBand’s Digital TV Management functionality for management of digital programming and advertising insertion on enhanced programs. The deployment also employs BigBand’s RateShaping® bit-rate adaptation, which is designed to maintain high video quality while containing cumulative bandwidth utilized within capacity constraints.

"Astound is growing quickly, and pushing the envelope with digital technology, specifically advertising, which is a key area of innovation for BigBand," said Biren Sood, vice president and manager of cable Americas for BigBand Networks. "Switched digital video and addressability enhancements can make advertising far more relevant and compelling for television audiences."

For additional information about BigBand’s Digital TV Management solution, please visit http://www.bigbandnet.com/products/sol_dtv_mgmt.php. For additional information about BigBand’s Digital Simulcast solution, please visit http://www.bigbandnet.com/products/sol_dig_simulcast.php. Finally, for an overview of BigBand’s BMR platform, please visit http://www.bigbandnet.com/products/bmr1200.php.

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.

BMR, RateShaping and all other BigBand Networks brand and product names are service marks, trademarks or registered trademarks of BigBand Networks, Inc. in the United States and other countries. All other marks are the property of their respective owners.

This release contains "forward-looking statements" as defined under the U.S. Federal Securities Laws, including the Private Securities Litigation Reform Act of 1995 and is subject to the safe harbors created by such laws. Forward-looking statements may relate to, but are not limited to the potential benefits to be derived by Astound from BigBand Networks’ products. Such forward-looking statements are based on current expectations that involve a number of uncertainties and risks that may cause actual events or results to differ materially. Factors that could cause actual events or results to differ materially include, among others, the following: rapid technological change that can adversely affect the demand for BigBand’s products, shifts in customer demand, shifts in strategic relationships, delays in BigBand’s ability to deliver its products and services, or announcements by competitors. These and other risks may be detailed from time to time in BigBand’s periodic reports filed with the Securities and Exchange Commission, copies of which may be obtained from www.sec.gov. BigBand Networks is under no obligation to (and expressly disclaims any such obligation to) update or alter its forward-looking statements whether as a result of new information, future events or otherwise. Information contained in our website is not incorporated by reference in, or made part of this press release.