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RadiSys to Report Third Quarter 2009 Earnings and Host Conference Call on October 27, 2009

To participate in the live conference call, dial (888) 333-0027 in the U.S. and Canada or (706) 634-4990 for all other countries and reference conference ID# 35015561. The live conference call will also be available via webcast on the RadiSys investor relations website at http://investor.radisys.com/.

A replay of the conference call will be available two hours after the call is complete until 11:59 p.m. ET on Tuesday, November 10, 2009. To access the replay, dial (800) 642-1687 in the U.S. and Canada or (706) 645-9291 for all other countries with conference ID# 35015561. A replay of the webcast will be available for an extended period of time on the RadiSys investor relations website at http://investor.radisys.com/.

About RadiSys

RadiSys (NASDAQ:RSYS) is a leading provider of advanced embedded solutions for the communications networking and commercial systems markets. Through intimate customer collaboration and combining innovative technologies and industry leading architecture, RadiSys helps OEMs, systems integrators and solution providers bring better products to market faster and more economically. RadiSys products include embedded boards, application enabling platforms and turn-key systems, which are used in today's complex computing, processing and network intensive applications. For more information, visit http://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.

RadiSys is a registered trademark of RadiSys Corporation.

RadiSys Corporation
Chief Financial Officer
Brian Bronson, 1-503-615-1281
brian.bronson@radisys.com
or
Finance and Investor Relations Manager
Holly Stephens, 1-503-615-1321
holly.stephens@radisys.com