Attached files

file filename
10-K/A - RADISYS CORPform10-ka.htm
EX-99.2 - RADISYS CORPexhibit992companiesinclude.htm
EX-99.1 - RADISYS CORPexhibit991companiesexclude.htm
EX-31.2 - RADISYS CORPexhibit31110kacfocertifica.htm


Exhibit 31.1
CERTIFICATIONS

I, Michel Dagenais, certify that:

1. I have reviewed this Amendment No. 1 to Annual Report on Form 10-K/A of Radisys Corporation for the fiscal year ended
December 31, 2011; and

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact
necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

Date: April 27, 2012

/s/ Michel A. Dagenais
Michel A. Dagenais
Chief Executive Officer