Distribution partnership to provide TEM customers in the MENA region with innovative ATCA offerings to meet growing demand for next-generation networks

UAE, Dubai — May 26, 2010 — RadiSys® Corporation (NASDAQ: RSYS), a leading provider of innovative hardware and software platforms for next generation IP-based wireless, wireline and video networks, today announced the selection of Converged Communications MENA (CCMENA) as its new distributor in the Middle East and North Africa (MENA) region.

CCMENA, one of the leading suppliers of hardware and software building blocks and services in the MENA region, has more than 10 years of extensive practice and experience in delivering telecommunications solutions and providing valuable support to its regional customers. Under this partnership, CCMENA will re-sell RadiSys’ Promentum® ATCA Systems and Media Servers in the MENA region.

“CCMENA sees high potential for RadiSys products, solutions and services in the regional telecommunications market,” said Ashraf Elyan, managing director of CCMENA. “A partnership with RadiSys opens up new opportunities for CCMENA to deliver state-of-the-art solutions to our customers. The combination of RadiSys’ systems and CCMENA’s expertise will provide an innovative product offering to the demanding MENA marketplace.”

“RadiSys is pleased to partner with CCMENA to distribute our cutting-edge Promentum ATCA systems, including our next-generation ATCA 4.0 platform, to meet growing demand for next-generation networks in the Middle East and North Africa,” said Jacques Rombouts, vice president, EMEA sales, RadiSys. “With CCMENA’s well-established success in this region, we are confident that this partnership will allow us to continue to expand the global reach of our proven ATCA deployments.”

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, please visit http://www.radisys.com or write to info@radisys.com. Editors seeking more information may contact Lyn Pangares at RadiSys Corporation at +1 503-615-1220 or lyn.pangares@radisys.com.