ADVISORY/ Chorum Technologies' CEO, Scott grout, to Participate In RBC Dain Rauscher Wessels Private Technology CEO Summit.

Business Editors & High Tech Writers

ADVISORY...for Thursday (Nov. 8)

--(BUSINESS WIRE)

Conference for Communications Companies in Dana Point, Calif.

WHAT:           Scott Grout, president and CEO of Chorum Technologies
                in Richardson, Texas, will participate in a panel
                entitled Next-Generation Carrier Class Optical
                Component at the RBC Dain Rauscher Wessels Private
                Technology CEO Summit. This intimate conference for
                private sector communications and software companies
                provides an opportunity for interaction with
                institutional portfolio managers, analysts and venture
                capitalists.

WHO:            Scott Grout has been president and CEO of Chorum
                Technologies since 1998. Since his appointment, the
                company has grown from a strong, technology-focused
                company, to a company with a broad product family and
                volume deliveries to many leading next-generation
                optical communications providers. Grout has 17 years
                of fiber-optic, communications systems and networking
                experience. Before joining Chorum Technologies, he was
                vice president of product management and marketing in
                Lucent Technologies' Optical Networking Group.

                  Grout holds a bachelor of science degree in
                engineering from the University of Wisconsin - Madison
                and a master of business administration degree from
                the Sloan School at the Massachusetts Institute of
                Technology.

WHEN:           Conference dates are Nov. 9-11, 2001
                Scott Grout's presentation is Thurs., Nov. 8, 2001 at
                8:45 a.m.

WHERE:          The Ritz-Carlton Laguna Niguel
                Dana Point, Calif.
                949/240-2000

                  RBC Dain Rauscher Wessels: 612/371-2721

ABOUT           Chorum Technologies is a leading provider of
CHORUM:         all-optical processors and subsystems for
                high-capacity networks. Chorum Technologies'
                PolarWave(TM) family of optical filtering, switching,
                routing and processing technologies enables networks
                that are faster, more flexible and more cost
                effective. Chorum Technologies was founded in 1996 and
                is based in the Telecom Corridor(R) of Richardson,
                Texas. For more information, visit www.chorumtech.com.