Press Release Trilithic’s Media Contact: Karalee Slayton Marketing & Communications 317 423-6604 kslayton@trilithic.com Trilithic & C-COR Integrate Software Applications to Improve Mobile Workforce Productivity Joint Solution Will Improve Productivity of Technical Field Operations Indianapolis, IN (May, 6 2003). Trilithic Inc., a leading manufacturer of portable test and measurement equipment for the broadband communications industry and C-COR.net Corp. (Nasdaq: CCBL), a global provider of broadband communications products, software systems, and services, today announced that they are working to integrate Trilithic’s new 860 DSPI high-performance Signal Analyzer with C-COR’s Mobile Workforce Manager (MWM) system. C-COR’s MWM is one of three current modules under C-COR’s Integrated Services Management (ISM™) suite of operations management software applications developed, distributed, and supported through C-COR’s Broadband Management Solutions (BMS) division. The MWM module provides cable operators with automated routing, dispatch, and workflow management tools as well as real-time monitoring and business intelligence reporting capabilities that enable significant cost reductions and improved work capacity for their field workforce activities. Trilithic’s 860 DSPI is a new release of the 860 DSP high-performance Signal Analyzer that is specially optimized for digital installations and interactive field operation. Advanced DSP technology gives the DSPI the power to perform a wide range of technical and management tasks, including analog and digital signal quality tests, automated data analysis and broadband communication of measurement, system, and customer data. Options include high-resolution spectrum analysis, expanded QAM analysis, and a wide range of return path tests working with Trilithic’s 9581 SST Return Path Analyzer. -MORE(Released in correlation with C-COR.net) Some of the information presented in this announcement constitutes forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements represent the Company's judgment regarding future events, and are based on currently available information. Although the Company believes it has a reasonable basis for these forward-looking statements, the Company cannot guarantee their accuracy and actual results may differ materially from those the Company anticipated due to a number of uncertainties, many of which the Company is not aware. Factors which could cause actual results to differ from expectations include, among others, capital spending patterns of the communications industry, changes in regard to significant customers, the demand for network integrity, the trend toward more fiber in the network, the Company's ability to develop new and enhanced products, the Company's ability to provide complete network solutions, continued industry consolidation, the development of competing technology, the global demand for the Company's products and services, and the Company's ability to integrate acquisitions and achieve its strategic objectives. For additional information concerning these and other important factors that may cause the Company's actual results to differ materially from expectations and underlying assumptions, please refer to the reports filed by the Company with the Securities and Exchange Commission. Trilithic, Inc., 9710 Park Davis Drive, Indianapolis, IN 46235 (317) 895-3600 (317) 895-3613 (800) 344-2412 www.trilithic.com C-COR AND TRILITHIC INTEGRATE SOFTWARE APPLICATIONS TO IMPROVE MOBILE WORKFORCE PRODUCTIVITY-ADD 1 “Bringing the power of our systems together will allow broadband system operators to unify key customer and plant data in ways that were impossible in the past, ensuring higher quality installations and significantly reducing repeat trouble calls,” stated Tom Burke, Vice President of Customer Solutions for C-COR’s Broadband Management Solutions division. Terry Bush, President of Trilithic, concurred, stating, “The top objectives for most of today’s system operators are to improve quality and customer satisfaction while reducing operating costs and increasing workforce flexibility. We are excited about integrating the C-COR and Trilithic systems because it provides the operator with new tools to accomplish all of these goals at the same time.” About C-COR (www.c-cor.net) C-COR is a leading provider of premium quality, globally-oriented fiber optic, digital video transport, and RF telecommunication products; operation support software solutions; and high-end technical field services—all enabling cost-effective delivery of voice, video, and high-speed data over advanced HFC (Hybrid Fiber Coax) broadband networks. 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. During 2003, C-COR will be celebrating its 50th anniversary with activities focused on linking its rich tradition of innovation, entrepreneurship, leadership, and commitment to the cable industry with its vision for the future. C-COR’s common stock is listed on the Nasdaq National Market (Symbol: CCBL) and is a component of the Russell 2000 Stock Index. About Trilithic, Inc. (www.trilithic.com) Trilithic, Inc. is an industry leader providing telecommunications solutions for major broadband and RF & wireless applications worldwide. Trilithic was founded in Indianapolis, Indiana, in 1986 as an engineering and development company and has since grown rapidly through aggressive internal developments and company acquisitions. Today, Trilithic boasts a staff of over 110 employees in three major divisions, supplying products as diverse as HFC test and maintenance equipment, RF and microwave components, and Emergency Alert Systems to customers in North America and around the world. Since its founding, Trilithic has retained its dedication to technical innovation and excellence, with special expertise in Digital Signal Processing-based instrumentation. ##### Trilithic, Inc., 9710 Park Davis Drive, Indianapolis, IN 46235 (317) 895-3600 (317) 895-3613 (800) 344-2412 www.trilithic.com