ADVISORY/Chorum Technologies to Showcase New products/ subsystems and Present Technical Paper AT ECOC, Europe's Largest Optical Communications Event.

Business Editors & High Tech Writers

ADVISORY...for Monday (Sept. 9)

European Conference on Optical Communication

--(BUSINESS WIRE)

Exhibition at Booth #23D in Copenhagen, Denmark 

WHAT:   Chorum Technologies is exhibiting at the 28th European
        Conference on Optical Communication (ECOC `02), which is
        sponsored by COM, the Denmark education and resource center
        for telecommunication and optional communication, and
        supported by IEEE/LEOS and EUREL. ECOC is the largest event on
        optical communication within Europe with more than 2,000
        participants and a large technical exhibition. A record high
        number of papers were submitted, with 400 papers being
        presented, including a paper submitted by Chorum Technologies.
        Dr. Charles Wong, Sr. Director of Product Management and
        Application Engineering for Chorum Technologies will present
        the paper, entitled Spectral Slicer(TM) Without Cascaded
        Dispersion Penalty.

WHEN:   Chorum Technologies' Booth #23D Exhibition:
        Mon., Sept. 9, from 9:30 a.m. to 5:00 p.m.
        Tues., Sept. 10, from 9:30 a.m. to 5:00 p.m.
        Wed., Sept. 11, from 9:30 a.m. to 4:00 p.m.

        Chorum Technologies' Paper Presentation:
        Paper Number 2.3.4
        Parallel Session 2.3, "WDM & Wavelength Conversion"
        Mon., Sept. 9, 2002, at 4:30 p.m.

WHERE:  28th European Conference on Optical Communication Exhibit
        Booth #23D: The Bella Centre, Hall C Paper Presentation: The
        Bella Centre, Auditorium11 Copenhagen, Denmark