Asute Networks and RadiSys Announce Partnership to Address Demanding Communications and Mil/Aero Applications

SAN DIEGO, CA and HILLSBORO, OR— March 9, 2010 — Astute Networks, Inc., a leading provider of bladed storage solutions optimized for the most demanding applications on the edge of the network, and RadiSys Corp. (NASDAQ: RSYS), a leading global provider of application-ready software and hardware platforms, today announced that the two companies have entered into an original equipment manufacturer (OEM) agreement to supply cutting-edge Advanced Telecommunications Computing Architecture (ATCA) solutions to communications and mil/aero customers worldwide.

Under the partnership, the companies will provide integrated solutions based on RadiSys' Promentum® ATCA chassis and server blade products and Astute Networks' edge storage blades, bundled with application-specific software. The combination of RadiSys' systems and product expertise, and Astute Networks' Caspian Edge Storage Blades, will provide an innovative product offering for demanding mission-critical network environments. The companies will market these combined solutions in the communications and mil/aero marketplaces.

"Astute Networks' experience in designing world-class storage products for the communications and mil/aero markets was the basis for entering into this mutually beneficial OEM agreement, and we are pleased to welcome them as a new member of our RadiSys Alliance Partner Program," said Anthony Ambrose, vice president and general manager of communications networks, RadiSys. "This partnership will enable our customers to select from an even broader range of integrated platform solutions that provide the choice, flexibility and time-to-market advantages required by the communications and mil/aero industries."

"RadiSys has defined itself as a leading global provider of application-ready software and hardware platforms for use in the communications, multi-media, mil/aero and medical markets, and we look forward to bringing cutting-edge solutions to market, together," stated Clark Masters, president and chief executive officer, Astute Networks, Inc. "End-users are driving the demand for integrated vendor solutions and are looking for partners with proficiency in designing and implementing these solutions. We believe the RadiSys/Astute Networks partnership will benefit our mutual customer base by providing a wide array of technology options."

Telecommunications customers such as TynTec Ltd. have already welcomed the partnership.

"To provide new capabilities to our carrier customers, we need innovative platforms that will deliver more compute and storage capabilities with ever-decreasing total cost of ownership," said Thorsten Trapp, chief technology officer, TynTec Ltd. "The RadiSys/Astute Networks OEM agreement provides telecommunications equipment manufacturers with all of these advantages in a package that decreases power, space and weight as well."

Mil/aero customers will also benefit from the synergies that the RadiSys/Astute Networks partnership offers. The companies have demonstrated abilities in developing innovative solutions for the ATCA platform which has become an integral computing architecture in the mil/aero sector. ATCA is ideal for mission-critical applications because of its inherent advantages in power consumption, deployment simplicity, space utilization and commercial off-the-shelf availability.

About Astute Networks, Inc.

Astute Networks is the leading provider of bladed storage solutions for edge applications to the telecommunications, military, aerospace, government and other mission-critical markets. The company's focus is to provide the most reliable ATCA storage platform with high availability, optimal performance and efficient space and power utilization. Astute Networks' edge storage solutions are easy to deploy and maintain and feature lower product lifecycle costs while increasing time to market. Astute Networks is located in San Diego, Calif. For additional information, visit www.astutenetworks.com. Astute Networks - Edge Storage Made Simple™

About Radisys

RadiSys (NASDAQ: RSYS) is a leading provider of application-ready software and hardware platforms for use in the communications, multi-media, defense and medical markets. RadiSys’ innovative and market leading technologies help equipment manufacturers and network operators bring the most advanced products and services to market faster and more economically. For more information, visit www.radisys.com, write to info@radisys.com, or call 800-950-0044 or 503-615-1100. Editors seeking more information may contact Lyn Pangares at RadiSys Corporation at 503-615-1220 or lyn.pangares@radisys.com.