C-COR Announces Proposed Public Offering of Common Stock.

Business Editors/High-Tech Writers

STATE COLLEGE, Pa.--(BUSINESS WIRE)--Feb. 9, 2004

C-COR.net Corp. (Nasdaq:CCBL), a global provider of broadband communications products, software systems, and services, today announced that it filed with the Securities and Exchange Commission a preliminary prospectus supplement for a public offering of 4,400,000 shares of its common stock.

The offering is being managed by CIBC World Markets, Friedman Billings Ramsey, Needham & Company, and Credit Lyonnais Securities (USA) Inc. A copy of the prospectus relating to this offering may be obtained from CIBC World Markets, 417 Fifth Avenue, New York, New York 10016, or by fax at [phone], or by email at [e-mail].

C-COR has also granted the underwriters an option to purchase an additional 660,000 shares to cover over-allotments.

A registration statement relating to these securities has been filed with the Securities and Exchange Commission and became effective on February 1, 2002. This press release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of these securities in any state in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of such state.

About C-COR (www.c-cor.net)

C-COR is a leading provider of premium quality, globally-oriented optical, digital video transport, and RF telecommunication products; operation support software solutions; and high-end technical field services -- a triple play for cost-effective delivery of voice, video, and high-speed data over advanced HFC broadband networks. C-COR's latest end-to-end fiber optic network solution, the FTTmaX, uses PON (passive optical network) technology and Gigabit connectivity to transport voice, video, and data over the last mile to the home or business. Headquartered in the U.S. with facilities worldwide, C-COR's mission is to provide our customers with second-to-none network integrity throughout the full network life cycle. C-COR's common stock is listed on the Nasdaq National Market (Symbol: CCBL) and is a component of the Russell 2000 Stock Index.

Forward-looking statements contained in this release are highly dependent among a variety of important factors which would cause actual results to differ materially from those reflected in such forward-looking statements, including among other things, whether C-COR completes the sale of common stock. When used in this release and documents referenced, the words "believes," "expects," "may," "should," "seeks," or "anticipates" and similar expressions as they relate to C-COR or its management are intended to identify such forward-looking statements. For additional factors, please see C-COR's reports filed with the Securities and Exchange Commission.