$16 Million Financing to Fuel the Growth of Sonim; Accel Partners, Apax Partners, 3i and BV Capital Endorse Push-to-Talk and Mobile VoIP Application Leader.

SAN MATEO, Calif. -- Sonim Technologies, the leader in enabling today's wireless data networks to deliver high-margin VoIP applications including Push-to-Talk, today announced a $16 million financing. The funding from the company's existing investors, including Accel Partners, Apax Partners, 3i and BV Capital, provides Sonim with the resources to continue its rapid growth to support carrier-grade Push-to-Talk (PTT) deployments, the beginning of mobile operators VoIP capability.

"We are excited to have received the continued support from a truly world-class investor community," said Terry Valeski, Chairman of the Board for Sonim. "The financing supports continued investment in product expansion, and solidifies Sonim's strong market position in the global PTT and mobile VoIP space."

"As the leader in standards-based Push-to-Talk technology with influential market and engineering development, Sonim is accelerating its growth path," said Robin Murray, Partner at 3i. "The company now has a strategic position in a much broader mobile VoIP applications space where carriers look for next generation services."

"Sonim will continue to develop its Sonim PoC Server(TM) capabilities to enable it to provide OMA PoC compliant PTT solutions," said Milan Parikh, CFO for Sonim. "Sonim's recent success at the PoC interoperability testing sessions with the world's largest infrastructure manufacturers, illustrates that the company is uniquely positioned in PTT and beyond."

Sonim is an application leader of voice services for GPRS/EDGE/WCDMA and CDMA 2000 networks. It enables Push-to-Talk solutions fully compliant with the industry standard Push to talk over Cellular (PoC) specifications, recently showcased in interoperability tests in Dallas. Sonim's solutions enable wireless operators worldwide to deploy Push-to-Talk today with the security of complete interoperability.

About Sonim Technologies, Inc.

Sonim Technologies enables today's wireless data networks to deliver high-margin voice services. This standards-based solution provides real-time communication services such as Push-to-Talk that combine the flexibility of mobile messaging with the ease-of-use of voice. The end-to-end, VoIP-based solution creates significant new revenue streams and delivers superior 'return on bandwidth' for mobile operators. Sonim is headquartered in San Mateo, Calif., with offices in Italy, Sweden, and the United Kingdom. For more information, visit the company's web site at www.sonimtech.com.

About 3i

3i is a leading international venture capital company with U.S. offices in Menlo Park, CA and Waltham, MA. Operating since 1945, 3i has invested worldwide over $31 billion, including co-investment funds, with a total staff of 700 employees operating out of 30 offices in 14 countries. 3i leverages this worldwide presence to add value to its portfolio companies and investment partners. In the United States, 3i concentrates on early and late stage technology investments in companies with the potential to be leaders in their markets. Outside the USA, 3i invests broadly in buyouts, growth capital and venture capital. Since opening its US businesses in 1999, 3i has become one of the most active early and late stage VCs in the US. Recent investments in early stage companies include Vette Corp., TransMedics, NeoGuide Systems, DAFCA, Discera, and OmniGuide. 3i has been equally active on the late stage, with recent investments in Vonage, Skystream Networks, Speakeasy, Bitfone, Impact Rx, Merchant e-Solutions, and Top Layer. Visit 3i and its portfolio at www.3ius.com.

About Accel Partners

Founded in 1983, Accel Partners has a history of excellence and innovation in the venture capital business. The firm is dedicated to partnering with outstanding management teams to build world-class Internet, software, and communications companies. With over $3 billion under management, Accel Partners has a long legacy of helping entrepreneurs build highly successful companies. Accel portfolio companies have completed IPOs that have created well over $100 billion in market capitalization. Accel has a history of backing category-defining companies, which include Actuate, Agile Software, Foundry Networks, Macromedia, Portal, Polycom, Uunet, RealNetworks, and Veritas. For more information, visit the Accel Partners web site at www.accel.com.

About Apax Partners

Apax Partners is one of the world's leading private equity investment groups, managing more than $13 billion on behalf of institutional investors worldwide. Its cross-border sector specialist teams in the US, Europe, Israel and Japan work together to identify the best investment opportunities in Information Technology, Telecommunications, Healthcare, Media, Financial Services and Retail/Consumer. Funds advised by Apax Partners pursue a balanced equity portfolio strategy, investing in companies at all stages of development from start-up to buy-out in transaction amounts ranging from $3 million to $3 billion. Recent investments include: Autonomy Corporation, Dialog Semiconductor, Damovo, Yell and Digital Bridges. For more information, please visit: www.apax.com.

About BV Capital

BV Capital is an independent venture capital fund with international high profile investors. The four founding members of the firm have extensive experience in the Internet, electronic media and telecommunications industries. BV Capital primarily focuses on early stage investments in the media, communications, infrastructure, enabling technologies and wireless application markets. In 2000 the Wall Street Journal named BV Capital as one of the most influential technology financiers on either side of the Atlantic. For more information, please visit: www.bvcapital.com.

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