Press Release

RadiSys to Report Second Quarter 2010 Earnings and Host Converence Call on July 27, 2010

HILLSBORO, OR — July 9, 2010 — RadiSys® Corporation (NASDAQ: RSYS), a leading provider of innovative hardware and software platforms for next generation IP-based wireless, wireline and video networks, will announce results for the second quarter of 2010 at 4:05 p.m. ET on Tuesday, July 27, 2010. Following the release, Scott Grout, Chief Executive Officer and Brian Bronson, Chief Financial Officer, will host a conference call at 5:00 p.m. ET to discuss the Company’s results, along with business highlights and the outlook.

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# 87224108. 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, August 10, 2010. 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# 87224108. 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/.

For more information, contact:

 

About RadiSys

RadiSys (NASDAQ: RSYS) is a leading provider of innovative hardware and software platforms for next generation IP-based wireless, wireline and video networks. RadiSys products include its market leading ATCA and IP Media Server platforms as well as application software for new IP-based communications services. These products enable customers to bring more new high-value applications and services to market faster with a lower investment. RadiSys products are used in a wide variety of applications including 3G/4G/LTE wireless voice, data and video, Femtocell, VoIP and Video over IP communications and conferencing, Voice Quality Enhancement (VQE), and secure defense communications. 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.