Radisys Announces Acquisition Of Pactolus Communications Software Corporation

Pactolus SIP applications software, together with Radisys Convedia Media Servers, strengthens Radisys’ ability to offer turnkey telecommunication solutions for service providers

HILLSBORO, OR — March 11, 2010 — Radisys® Corporation (NASDAQ: RSYS), a leading global provider of application–ready software and hardware platforms, today announced that it has acquired privately–held Pactolus Communications Software Company, a leader in the development and delivery of next–generation IP communication solutions for converged TDM/IP and SIP–enabled VoIP networks. Pactolus’ customizable turnkey SIPware™ services include large operator–assisted event and reservationless audio conferencing, prepaid/post–paid long distance services, residential/business Class 5 VoIP, and voice messaging. Pactolus’ software solutions are installed in over 45 telecommunication service provider customers worldwide including major Tier 1 and Tier 2 carriers.

“We are pleased to announce the acquisition of Pactolus,” said Scott Grout, Radisys President and CEO. “Radisys and Pactolus have been partnering for years in the delivery of media server technology and applications. The addition of Pactolus strengthens our portfolio of telecommunication solutions for service providers and TEMs. The Pactolus team has extensive domain expertise in developing both legacy TDM enhanced services and next generation IP–based communication applications and platforms. We look forward to having them as part of the Radisys team.”

About Radisys

Radisys (NASDAQ: RSYS), a global leader in open telecom solutions, enables service providers to drive disruption with new open architecture business models. Radisys’ innovative disaggregated and virtualized enabling technology solutions leverage open reference architectures and standards, combined with open software and hardware to power business transformation for the telecom industry, while its world-class services organization delivers systems integration expertise necessary to solve communications and content providers’ complex deployment challenges.

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