Sonim Mobile VoIP Push-to-Talk Service Validated on Symbol Technologies Mobile Computers

Sonim Technologies, a leading provider of high-performance mobile
VoIP and IMS-based applications for mobile data networks, today
announced that its push-to-talk (PTT) service for Symbol Technologies'
MC70 Enterprise Digital Assistant (EDA) has been "co-validated"
through Symbol's Solution Validation Program, and is granted the
SymbolPLUS Validated logo. Symbol and its more than 12,000 global
PartnerSelect members now have immediate access to Sonim's managed
VoIP services to offer their mobile workforce customers the option of
adding rich voice collaboration tools to the existing utility of
Symbol mobile computers.

Sonim's end-to-end Push-To-Talk service is fully compliant with
the new Open Mobile Alliance (OMA) PTT-over-Cellular (PoC) 1.0
standard for PTT interoperability and offers best-in-class
functionality for the mobile workforce market segment. The solution
presents mobile workers with an intuitive presence-enabled contact
list, enabling the initiation of 1-to-1 and group PTT calls to
co-workers and managers that are available for immediate
collaboration, and is offered by Sonim as a remote managed service
that delivers a high-quality voice experience over both GSM and WiFi
networks - enabling ubiquitous coverage for workers both inside and
outside of the enterprise environment.

"Sonim's PTT service is a valuable addition to Symbol's portfolio
of mobile workforce tools as it leverages the power of VoIP to enhance
team-based collaboration in the field," said Patrick McCullough, Vice
President and General Manager of Symbol's Solutions Division. "The
agreement with Sonim will help our customers maximise the benefits of
PTT using our ruggedised mobile computers -- including the MC70 EDA --
that can be taken into harsh environments."

"Symbol's global customer and PartnerSelect community represents
the leading edge in the deployment of mobile workforce productivity
solutions, the precise market that Sonim has identified for initial
adoption of OMA PoC services. Industry analysts suggest the global
market for PTT will grow to $10.1 billion by 2008, so we believe that
the Symbol PartnerSelect community will find immediate revenue
opportunities by delivering Sonim's solution," said Paul Longhenry, VP
Business Development at Sonim. "We are excited about the opportunity
to supply our PTT service through Symbol's partners and intend to add
support for additional Symbol mobile computers in the coming months."

About Sonim Technologies, Inc.

Sonim Technologies enables today's GPRS, UMTS, EVDO, WiFi and
WiMAX data networks to deliver high-performance mobile VoIP
"Push-to-X" applications and services, specifically optimized to meet
the productivity objectives of mobile enterprises. Sonim's OMA PoC 1.0
server, client and handset solutions represent the industry's only
business class implementation of the push-to-talk standard and form
the basis of an emerging suite of streaming IMS-compliant
applications. Sonim is headquartered in San Mateo, California, with
offices in Bangalore, London, Paris, Stockholm and Madrid. For more
information, visit the company's web site at www.sonimtech.com or
learn more about the push to talk at www.mobilesforworkers.com.

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