Leading Japanese Operator Expands Service Offerings While Maximizing Subscriber Experience

Tokyo & Tewksbury, MA - June 29, 2009 - Starent Networks, Corp. (NASDAQ:STAR), a leading provider of infrastructure solutions that enable mobile operators to deliver multimedia services, today announced KDDI, one of the largest Japanese operators, is deploying its Security Gateway to provide Wi-Fi service for their growing subscriber base. KDDI’s ‘Wi-Fi WIN’ service provides secure and easy Internet access for cellular handsets, via wireless LAN and fixed broadband lines.

Starent’s Security Gateway provides KDDI with a secure entry point into their core network. This function leverages the high-performance and distributed architecture capabilities of Starent Networks’ market leading ST40™ multimedia core platform. Additionally, with Starent’s Home Agent (HA) in the network, KDDI subscribers can benefit from service experiences as they roam between un-secure Wi-Fi networks and secure EV-DO networks.

“Having worked with KDDI for the past five years, we have seen first hand their commitment to customers and to innovation by providing advanced and diverse services offerings,” said Ashraf Dahod, president and chief executive officer for Starent Networks. “Our multimedia core solutions are designed specifically for mobile broadband and as a result, are well suited for high-demand networks like KDDI’s.”