To: Jenna who wrote (2236 ) 1/18/2001 2:29:13 PM From: JeanD Respond to of 6445 Thursday January 4, 5:04 pm Eastern Time Press Release Corvis Sets Fourth Quarter and Year-End Earnings Release Date and Webcast COLUMBIA, Md.--(BUSINESS WIRE)--Jan. 4, 2001--Corvis Corporation (NASDAQ:CORV - news), a leader in delivering intelligent all-optical networking solutions, today announced that it will release its financial results for the fourth fiscal quarter and fiscal year ended December 30, 2000, after the market closes on Thursday, January 25, 2001. The company will host an earnings conference call reviewing these results beginning at 5:30 p.m. EST. The conference call will be webcast on the company's corporate website at www.corvis.com. The webcast will be archived on the corporate website for replay purposes. About Corvis Corvis Corporation is a provider of all-optical networks founded by Dr. David Huber, a pioneer in the field of optical communications. The company is revolutionizing the way communications traffic is moved in the new Internet-driven economy by deploying the industry's first all-optical network providing integrated all-optical switching, ultra-long distance transport and network management. Corvis products and services deliver all-optical network intelligence and mesh network capability. This allows communication service providers to realize a significant gain in network capacity using existing fiber in the field and improve their competitiveness by delivering new and existing services and applications more rapidly, while significantly reducing the overall capital and operational cost of building and maintaining their network. For more information, call Corvis at 443/259-4000 or visit the Corvis website at www.corvis.com. Corvis, CorWave and the Corvis logo are trademarks and/or service marks of the Corvis Corporation.