Rosum to Present at E9-1-1 Summit at CTIA Wireless 2006.

MOUNTAIN VIEW, Calif. -- Rosum Corporation, the leader in reliable location technology for public safety markets, announced today that it would present at the E9-1-1 Summit at the CTIA Wireless I.T. & Entertainment Convention on September 13.

Jon Metzler, Rosum's Director of

Metzler will speak on the use of Rosum's robust positioning technology to automatically locate VoIP 9-1-1 calls, in particular from customers who take advantage of VoIP's nomadic capability. Currently deployed solutions rely on self-provisioning by the customer; however, the customer may not be aware of his precise location, or may not input it in a valid 9-1-1 format, necessitating manual verification. Up to 80% of input addresses require some kind of validation. Rosum's patented location technology leverages the robustness broadcast television infrastructure to deliver reliable, public safety-class location capability -- automatically, without requiring customer intervention.

The E9-1-1 Summit (www.wirelessit.com/info/e911_summit.cfm) is hosted by the E9-1-1 Institute, a non-profit organization whose mission is to promote public education on E9-1-1 and emergency communications issues.

About Rosum Corporation

Rosum is the first and only company to use unmodified broadcast TV signals for position location of mobile assets. The Rosum solution is uniquely suited to public safety applications that require always-available position location in urban and indoor settings. Rosum is also the first to combine TV and GPS signals for truly robust situational awareness in all environments. Rosum's leadership is composed of industry leaders from the GPS, cellular and television worlds, and the company is venture-backed by leading investors including Charles River Ventures, Allegis Capital, and Motorola Inc. Partners include In-Q-Tel, the CIA's venture investment arm. Rosum's founding team includes the original architects of the GPS constellation. More information is available at www.rosum.com.