Mobilcom Debuts O3SIS' Synchronization Services for Consumer Mobile Phones at World Cup in Germany

O3SIS enables Mobilcom to launch first over-the-air calendar synchronization service to alert customers on upcoming soccer games via cellular phones

SACRAMENTO, USA, May 15, 2006 - O3SIS AG, a leading provider of personal mobile applications and Over-the-Air data synchronization (DS) technology for first tier mobile network operators, today announced that Mobilcom has launched O3SIS' innovative mobile data synchronization service to its subscribers.

Mobilcom, a leading German virtual mobile network operator (MVNO), will offer O3SIS' SyncML products including contacts and calendar synchronization between mobile devices, PCs, and the Mobilcom Web service. As incentive to its subscribers to sign-up for the new service, Mobilcom will include a unique, free feature which automatically makes available all dates and starting times of the 64 World Cup soccer games directly on the mobile device and desktop PC.

O3SIS offers the industry's most advanced, end-to-end SyncML solution which enables Mobilcom and other mobile network providers to offer over-the-air synchronization for business users and consumers on a full range of handsets.

"Mobilcom's deployment of our SyncML products are a consumer-oriented and creative way of launching these value-added services," said Dirk Dörre, CEO and CTO at O3SIS. "Besides being updated on the World Cup schedule, O3SIS also offers Mobilcom's subscribers piece of mind and enhanced capabilities by providing over-the-air synchronization and seamless backup and restore capabilities for their mobile devices."

O3SIS SyncML and Backup and Restore are key components of the company's Unified Mobile Applications (UMA) platform, which provides Over-the-Air data synchronization, a full-featured address book, mobile device backup/restore, and mobile personal information management (PIM) functionality including consumer push e-mail. UMA enables operators to roll out multiple value-added services from a single, high-performance platform, significantly reducing system complexity and maintenance costs. O3SIS' UMA products are based on OMA DS1.2 and supports Over-the-Air synchronization on more than one hundred different devices from all leading handset vendors.

For more information, visit www.O3SIS.com or contact info@o3sis.com.

Mobilcom focuses on marketing and sales of portable communication devices for T-Mobile, Vodafone, E-Plus and o2 as a franchised directed network of stores and business partnerships. Mobilcom offers simple products and services with qualified product support personnel to ensure that customers enjoy uncomplicated mobile communications.

Founded in 1996, O3SIS AG develops and sells carrier-grade mobile software solutions, providing innovative personal applications and industry-leading Over-the-Air data synchronization technology to mobile network operators and ISPs/ASPs. O3SIS is headquartered in Germany with North American offices located in Northern California.

Since introducing its first mobile service in 1999, O3SIS has been a pioneer and market leader in the mobile industry. By wirelessly syncing e-mail, contact information, calendar events, and tasks across customer devices such as the desktop, Web, and handset, O3SIS applications create a level of trust, and deliver an enhanced experience for a worry-free, more productive, and dynamic mobile lifestyle.

O3SIS' innovative line of products is currently deployed at top tier mobile network operators, including Vodafone Group, E-Plus, O2, and T-Mobile, with millions of users worldwide. The Company's strategic and Technology Partners network includes LogicaCMG, Hewlett Packard, Siemens, T-Systems, SUN, as well as all leading handset manufacturers.