Sonim Technologies Unveils the XP1 -- the World's First 'Unbreakable' Push-to-Talk Handset for Industrial- and Field-Based Mobile Workforces.

LONDON & SAN MATEO, Calif. -- Ruggedised Low-Cost Mobile Phone Lets Operators Bring the Only Standards-Based Push-to-Talk Service to Mobile Enterprise Workforces across Europe

Sonim Technologies, the leader in mobile VoIP and push-to-talk IMS solutions for operators and the global provider of high-performance mobile VoIP applications and devices, today announced the launch of the XP1, the world's first industry standard Push-to-Talk (PTT) handset and the world's first ruggedised GSM PTT handset.

The XP1, GCIF-certified for the EMEA and Asian markets, lets mobile operators offer services to an enterprise subscriber base of more than 25 million mobile workers that require PTT capabilities in an economical, field-ready handset. These groups include workers in rapidly expanding industries such as security, field maintenance, logistics/transportation and utilities as well as a variety of field staff in the public and private sectors.

The low-cost and ruggedised XP1 incorporates the approved Open Mobile Alliance (OMA) PoC 1.0 standard, which enables one-to-one and one-to-many PTT communications capabilities across any GSM network. An extra large button on the side of the handset allows users to operate the walkie-talkie style PTT capabilities. Additional features include extra large interface buttons, an oversized screen for better visibility outdoors and extended battery life. The XP1 is IP-52 certified to ensure resistance to dust and water - two of the most common disruptive elements field workers encounter.

"With the XP1, Sonim allows operators to cater to an important market outside the US: Small and large organizations with significant field operations requirements in potentially harsh environments," said Ken Rehbehn, Research Director for Telecom Infrastructure at Current Analysis. "By using an open standard, Sonim gives operators the ability to bring industrial push-capabilities to millions of mobile enterprise workers at a reasonable cost. It is important because operators are constantly looking for new ways to grow enterprise business - one of the stickiest and highest ARPU customer bases that operators hope for."

With the introduction of the XP1, Sonim brings a complete end-to-end solution for OMA PoC applications for the enterprise. In addition to the handset, Sonim offers a client / server platform that runs on a standalone basis or is easily integrated into IMS network systems. The Sonim solution runs on GSM and WiFi environments and the services enable fixed-to-mobile convergence between GSM and WiFi, allowing operators to realize additional value from these deployments.

"For GSM operators, OMA PoC 1.0 brought the ability to roll-out standardized push capabilities regardless of the handset or network," said Bob Plaschke, CEO of Sonim. "Our XP1 phone now brings these capabilities in the form of a handset designed to meet the needs of industrial mobile workforce in Europe and around the world."

About Sonim Technologies, Inc.

Sonim Technologies enables today's GPRS, UMTS & WiFi data networks to deliver high-performance VoIP 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, Stockholm and Madrid. For more information, visit the company's web site at www.sonimtech.com.

Copyright (C) 2006 Sonim Technologies, Inc., Sonim, Sonim Xtend, Sonim Xperience, Sonim XP1, and the Sonim logo are trademarks of Sonim Technologies, Inc. Other company and product names may be trademarks or registered trademarks of the respective owners with which they are associated.