Radisys® Corporation (NASDAQ:RSYS), a leading provider of embedded wireless infrastructure solutions for telecom, aerospace, defense and public safety applications, will announce results for the fourth quarter of 2011 at 4:05 p.m. ET on Tuesday, January 31, 2012. Following the release, Mike Dagenais, Chief Executive Officer and Brian Bronson, President and Chief Financial Officer, will host a conference call at 5:00 p.m. ET to discuss the Company's results, 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# 43051989. 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, February 14, 2012. To access the replay, dial 855-859-2056 or 404-537-3406 with conference ID# 43051989. 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 embedded wireless infrastructure solutions for telecom, aerospace, defense and public safety applications. Radisys' market-leading ATCA, IP Media Server and Com Express platforms coupled with world-renowned Trillium software, services and market expertise enable customers to bring high-value products and services to market faster with lower investment and risk. Radisys solutions are used in a wide variety of 3G & 4G / LTE mobile network applications including: Radio Access Networks (RAN) solutions from femtocells to picocells and macrocells, wireless core network applications, Deep Packet Inspection (DPI) and policy management; conferencing and media services including voice, video and data, as well as customized mobile network applications that support the aerospace, defense and public safety markets.

Radisys® and Trillium® are registered trademarks of Radisys.

Radisys
Allen Muhich, Vice President of Finance, 503-615-1616
allen.muhich@radisys.com
or
Holly Stephens, Finance and Investor Relations Manager, 503-615-1321
holly.stephens@radisys.com