BigBand Networks Announces Edge QAM Milestone.

BigBand Shipped 70,000 Edge QAMs in 2006; Company's Versatile QAM Platforms Support Expanding Commercial Deployments of Switched Digital Video and Modular CMTS 

REDWOOD CITY, Calif. -- BigBand Networks, Inc. (NASDAQ:BBND) today provided a series of updates on its Edge quadrature amplitude modulation (QAM) leadership in advance of this week's SCTE Cable-Tec Expo. BigBand shipped more than 70,000 Edge QAMs in 2006 -- more, the company believes, than any other supplier. The company's market-leading Edge QAM platforms play a critical role in supporting advanced digital video and data services, including what BigBand believes to be the first commercial deployment of modular cable modem termination system (M-CMTS) based on the CableLabs([R]) specification, and the first and only successful commercial deployments of switched digital video (SDV).

BigBand pioneered SDV as a way for operators to significantly expand HDTV channels and other programming by making far more efficient use of existing bandwidth, and without forcing them to invest in more expensive alternatives to bandwidth expansion. The company's commercial deployments of SDV now pass approximately 6.5 million homes across eight cable systems.

BigBand's M-CMTS can dramatically lower the cost of increasing broadband speeds by leveraging the company's Edge QAM solution to perform some of the capabilities traditionally performed by the CMTS core. Based on its deployment with Dutch cable operator Multikabel, BigBand believes it was the first equipment vendor in the world to ship M-CMTS based on the CableLabs([R]) specification. Multikabel continues its rollout and has turned up more than 10,000 subscribers on M-CMTS. Last week BigBand announced that three Japanese cable operators are rolling out data services that can achieve download speeds up to 120 megabits-per-second (Mbps) based on the company's M-CMTS solution.

"BigBand's Edge QAM platforms are pivotal elements of some of the world's most advanced commercial service deployments," said David Heard, BigBand's senior vice president and general manager of product operations. "BigBand's solutions have given operators the confidence in switched digital video and M-CMTS to move from trials to successful commercial deployments."

At Cable-Tec EXPO 2007 this week, BigBand will demonstrate the benefits of its Universal Edge QAM solution from Wednesday, June 20th through Friday, June 22nd at booth 2164 at the Orlando Convention Center. As part of the demonstration, BigBand's next-generation Edge QAM platform shares capacity among switched digital video, video-on-demand, network-based digital video recording and DOCSIS([R]) high speed data services.

For additional information about BigBand Networks' technologies, or to arrange a demonstration, please email [e-mail].

About BigBand Networks

BigBand Networks, Inc. (NASDAQ:BBND) provides broadband service providers with innovative network solutions designed to make it easier to move, manage and monetize video. These solutions are based on BigBand's video-networking platforms that are built to enable efficient and reliable delivery of video, voice and data across a wide range of services, including digital TV, high definition TV, addressable advertising, video-on-demand, interactive TV, Internet TV, video telephony, high-speed Internet and voice-over-IP. BigBand Networks' customers include more than 100 service providers -- including six of the ten largest service providers in the U.S. -- and leading cable and telco service providers in North America, Asia, Europe and Latin America. BigBand Networks is based in Redwood City, Calif., with offices worldwide. For additional information about the company, please call +1.650.995.5000, email [e-mail] or visit www.bigbandnet.com.

BigBand Networks brand and product names are service marks, trademarks or registered trademarks of BigBand Networks, Inc. in the United States and other countries. CableLabs and DOCSIS are trademarks of Cable Television Laboratories, Inc. 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 functionality of BigBand's edge QAMs, switched broadcast solution and M-CMTS solution, and the potential benefits to be derived by customers from such 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.