Lucent Technologies Chooses Operating System From Lynx Real-Time Systems
for Multi-Media Products

Lucent's MMCX is First Product for New Multimedia Networks

SAN JOSE, Calif., April 23, 1996 -- Lynx Real-Time Systems, Inc. announced
today that Lucent Technologies -- formerly AT&T's systems and technology
business -- has selected LynxOS as the operating system for its MultiMedia
Communications eXchange (MMCX) Server.

The MMCX is the first product to bridge the separate worlds of private
voice and data networks. For the first time, the MMCX allows people to use
all the familiar office telephone features -- such as conferencing or
transferring calls -- on multimedia calls involving voice, data, image and
video.

Lucent chose the LynxOS operating system for two reasons: the product's
ability to support deterministic, real-time functionality, and the
company's high level of support, service, and technical expertise. "The
MMCX is state-of-the-art, requires multi-threading, and accomplishes many
tasks simultaneously, like taking information from a LAN and transmitting
it to a conference call on a PBX," said Joy Pinsky, general manager for
the MMCX. "Customer expectations for multi-media applications --
especially in the voice arena -- make real-time functionality a must-have.
Without it, quality of service would be totally unacceptable."

LynxOS is the only commercial operating system that delivers hard real-time
performance while complying with POSIX and UNIX standards. To support
complex applications, LynxOS fully supports the Microprocessor Memory
Management Unit (MMU). This enables programmers to partition computing
programs, thereby safeguarding processes in one area from defects or bugs
in another.

"We're finding that communications engineers are the fastest- growing
segment of the market turning from home-grown real-time operating systems
(RTOS) to off-the-shelf RTOS solutions, like LynxOS," said Inder M. Singh,
President and CEO of Lynx Real-Time Systems, Inc. "Programmers are more
productive when they focus on developing complex applications, rather than
worrying about creating an RTOS from scratch."

POSIX, An Enabling Standard for Sophisticated Applications

One of the key advantages to buying an off-the-shelf RTOS is that they are
often in compliance with critical industry standards.

No other real-time operating system matches the degree of LynxOS'
compliance to POSIX. IEEE's POSIX standard plays a key role in leading the
embedded, real-time world toward open systems. It defines the industry's
standard application programming interface (API) for UNIX, and provides
the first standard API for real-time embedded applications.
 
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