BigBand Networks To Deliver IP-Based HDTV, High-Definition VOD Over Existing Cable Modems At ANGA Cable 2007

Multi-Vendor Demonstration Highlights Cost, Efficiency Advantages of BigBand’s M-CMTS for IP Video Delivery

May 21, 2007

BigBand Networks, Inc., (NASDAQ:BBND), will demonstrate the ability of its modular cable modem termination system (M-CMTS) solution to deliver high-definition video-on-demand (VOD) and IPTV over existing DOCSIS® cable modems at Europe’s largest cable conference next week. BigBand’s exhibit—located in Stand D13 at ANGA Cable 2007 in Cologne, Germany—will highlight its M-CMTS solution’s ability to increase broadband speeds to support high-definition, IP video at a fraction of the cost of alternative methods. Though cable IPTV is a relatively nascent technology, one operator is already using BigBand’s Cuda CMTS—a key element of its M-CMTS solution—to deliver IP-based VOD to subscribers. “Our M-CMTS solution provides extraordinary cost benefits by improving performance on existing infrastructure, and we’re demonstrating that it is capable of delivering advanced IP video services,” said John Holobinko, vice president and manager of cable IP for BigBand Networks. “There is simply no need for operators to embark on a proprietary approach to IP video; DOCSIS® and M-CMTS provide an excellent, standards-based roadmap.” BigBand’s exhibit includes two distinct demonstrations of its M-CMTS’ video capabilities. The first is a multi-vendor demonstration that leverages a VOD server from BitBand, a Camiant policy server and application manager, a VOD session manager from eventIS and Zappware’s set-top box middleware to deliver high-definition VOD over DOCSIS 2.0 modems. The second demonstration leverages BigBand’s M-CMTS architecture with DOCSIS 3.0 channel bonding and a channel bonding cable modem to deliver both standard and high-definition video to an IPTV set-top box. In addition to its technology demonstrations, BigBand will also present as part of a key technical session at the conference. In his presentation for the panel titled, “Getting the Most out of your HFC Network—Segmentation and Managing Impairments to Achieve Maximum Bandwidth,” Hal Roberts, senior principal engineer for BigBand, will outline methods for improving the performance and reliability of upstream EuroDOCSIS™ networks. The panel is scheduled for Thursday, May 24 at 12:30 p.m. For additional information about BigBand Networks’ innovative M-CMTS solution, please visit http://www.bigbandnet.com/products/sol_mcmts.php. For additional information about BigBand’s presence at ANGA or to arrange a demonstration, please email info@bigbandnet.com. About BigBand Networks BigBand Networks, Inc., (NASDAQ:BBND), 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 across coaxial cable, fiber or copper. Service providers use BigBand Networks' platforms to cost-effectively expand revenue-generating offerings of rich content and advanced interactive services. Customers include six of the ten largest service providers in the U.S., and leading service providers in North America, 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.

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