EXFO Releases Industry's First Fully Integrated IMS-HSS Emulator

    New software suite provides end-to-end testing of IMS core networks

    QUEBEC CITY, Jan. 29 /CNW Telbec/ - EXFO Electro-Optical Engineering Inc.
(NASDAQ:   EXFO, TSX: EXF) announced today the release of hssFlex, the
industry's first fully integrated Home Subscriber Servers (HSS) emulator for
Internet Protocol Multimedia Subsystem (IMS) networks.
    The HSS, the master database in IMS architectures, plays a critical role
in the authentication and authorization of subscribers. Without proper access
to the HSS, subscribers cannot access network services, resulting in
significant network downtime, customer churn and loss of revenue.
    When combined with EXFO's IMS subscriber emulator, the hssFlex can wrap
around an IMS network to provide comprehensive, end-to-end testing, or simply
characterize single network elements such as application servers or call
session controllers.
    Key test features include the ability to simulate real-world interactions
like subscribers updating their services, subscriber services being terminated
due to non-payment of bills, and characterization of the impact of denial of
service (DOS) attacks on the IMS network. Like EXFO's other IMS test suites,
the hssFlex complies with industry standards, but also provides the
flexibility to simulate proprietary and non-complaint IMS traffic.
    EXFO's InterWatch platform, the most advanced and scalable test solution
for IMS network elements, now comes equipped with the hssFlex emulator. The
new software suite can also be purchased by existing InterWatch owners at a
competitive price.
    "For network equipment manufacturers and network operators, who are
developing or deploying IMS networks, it is critical for them to understand
the interaction between the HSS and IMS core," said Etienne Gagnon, EXFO's
Vice-President of Product Management and Marketing. "Testing elements in
isolation will only produce an incomplete picture of an IMS network and
services. Our fully integrated IMS-HSS emulator provides customers with peace
of mind."

    About EXFO

    EXFO is a leading provider of test and service assurance solutions for
network service providers and equipment manufacturers in the global
telecommunications industry. The Telecom Division offers a wide range of
innovative solutions extending across the full technology lifecycle ? from
design to technology deployment and onto service assurance ? and covering all
layers on a network infrastructure to enable triple-play services and
next-generation, converged IP networking. The Life Sciences and Industrial
Division offers solutions in medical device and opto-electronics assembly,
fluorescence microscopy and other life science sectors. For more information,
visit www.EXFO.com.

For further information:

For further information: Vance Oliver, Manager, Investor Relations,
(418) 683-0913, Ext. 3733, vance.oliver@exfo.com

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