MontaVista Softwware announced that the French company Cirpack, developers
of voice switching equipment for telecommunications service providers, is
currently providing voice infrastructure solutions that are developed using
MontaVista HA Framework.

For more details, please see the release included below.

Thanks,
Annette
Pacifico, Inc.
(408) 293 8600 x341

Cirpack Delivers Field-Proven Telephony Platform Based on MontaVista High
Availability Framework
PARIS, March 27, 2002 ‹ MontaVista Software Inc., the company powering the
embedded revolution, is pleased to announce that Cirpack is currently
providing telecom operators with robust voice infrastructure solutions
developed using MontaVista� High Availability (HA) Framework. The Cirpack
solutions deliver field-proven carrier-class features meeting high
availability requirements.

Cirpack develops next generation voice switching equipment for telecom
service providers¹ infrastructure. The Cirpack solutions manage Class-4 and
Class-5 telephony services over any type of local loop and core network
simultaneously, using IP, ATM and TDM protocols. They are based on an Intel
CompactPCI shelf, hosting Cirpack¹s copper and fiber interface boards. All
interfaces and processor modules are hot-swappable, and the systems can be
equipped with full redundancy to achieve state-of-the-art reliability.

³Cirpack has extensive experience in Linux® as our engineers have
participated in the initial development of Linux for PCI hardware back in
1994,² explains Frederic Potter, Cirpack¹s CTO & senior VP. ³The MontaVista
HA Framework has enabled us to quickly meet the reliability and robustness
requirements our customers have come to expect from carrier-class
infrastructure equipment.²

MontaVista High Availability Framework enables developers to enhance the
reliability of their applications by supporting redundant system slot
processors to work in active/stand-by pairs (2N) with rapid fail-over from
the active to the stand-by CPU. It also supports the in-place swapping out
of failed peripheral slot processors by technicians in response to hardware
faults.

³The combined efforts of Intel, MontaVista Software and Cirpack have turned
Linux and CompactPCI hardware into the solution of choice for carrier-class
telephony infrastructure equipment,² explains Jeff Hewlett, Intel¹s
CompactPCI product marketing manager.

³The move to Linux is happening,² said Cees Boshuizen, MontaVista vice
president of sales in Europe.
³Cirpack¹s next generation infrastructure solutions powered by MontaVista
platforms have proven to be real alternatives to legacy voice switching
equipment, enabling telecom service providers to quickly deliver innovative
and profitable services at a very low cost.²

About MontaVista HA Framework

MontaVista¹s HA Framework includes key software components needed to support
fault-resilient systems, including code that facilitates RSS fail-over, and
ready-to-use hot swap ³aware² device drivers and templates for standard
peripheral slot CPUs.

About MontaVista Software Inc.

MontaVista Software Inc. powers the embedded revolution by providing
open-source systems software solutions for embedded developers. Founded in
1999 by real-time operating system (RTOS) pioneer James Ready, MontaVista's
principal products include MontaVista� Linux®, a Linux-based embedded source
and binary distribution, cross development platform and a set of tool kits
for x86/IA-32, PowerPC, StrongARM, MIPS, SH, ARM, XScale and other
microprocessor architectures. MontaVista offers developers a family of
products and services for embedded design and development targeted for
applications ranging from communications infrastructure to consumer devices.
MontaVista Software also provides several technology add-on products
addressing specific customer needs such as the Java development environment,
High Availability technology, powerful graphics toolkits and more.

Headquartered in the heart of Silicon Valley, in Sunnyvale, Calif.,
MontaVista Software is a privately held company funded by leading investors
such as Alloy Ventures, US Venture Partners, RRE Ventures, WR Hambrecht +
Co., IBM, Intel Capital, Panasonic and Sony Corporation. For more
information about MontaVista Software, please visit http://www.mvista.com,
email to info@mvista.com or call (408) 328-9200.


About CIRPACK

CIRPACK develops next generation Local Exchange and Transit switches for
telecom operators¹ converged voice infrastructure (PSTN). Being based on
open platforms running standard technologies, our equipment are fast and
easy to deploy and allow savings of 50% in CAPEX (investments) and 70% in
OPEX (operations) for accelerated ROI.

CIRPACK deployed the world largest SoftSwitch-based TDM/Packet PSTN, as
early as 1998. This network is made of more than 30 Class-5 SoftSwitches and
150 Media/Signaling Gateways and supports 100% of this operator¹s voice
revenues.

CIRPACK¹s platform provides simultaneous support for TDM, ATM and IP voice
traffics and protocols. It is a carrier-class, highly scalable,
non-disruptive telephony platform supporting any migration path from legacy
proprietary TDM switches to the open packet-telephony model (NGN). CIRPACK¹s
solution helps preserve existing investments when moving to Next Generation
Networks technologies or when introducing high-margin value-added services.

CIRPACK is working with industry leaders to provide global solutions. These
partners include Amper, Cisco, Compta, Fujitsu Telecom, Marconi, Netbricks,
Polycom, Telindus, RAD and more. CIRPACK¹s customers include Kaptech (LDCOM
Group), Tiscali, Free Telecom and Altitude Telecom among others.

CIRPACK is a European company headquartered near Paris. For more
information, please visit www.cirpack.com or contact info@cirpack.com.

Linux is a registered trademark of Linus Torvalds. MontaVista is a trademark
of MontaVista Software Inc. Cirpack is a registered trademark of Cirpack
SAS. Intel is a registered trademark of Intel Corporation. All other names
mentioned are trademarks, registered trademarks or service marks of their
respective companies.


Contacts:
Joe Samagond   
Director of Marketing and Corporate
Communications   
MontaVista Software Inc.
Phone: (408) 328-9234
E-mail: jsamagond@mvista.com

Patricia Colby
PR Strategy and Business Development
Pacifico Inc.
Phone: (408) 293-8600 ext. 340
E-mail: pcolby@pacifico.com