Investor Contacts
| Investor Contacts |
| Allen Muhich Chief Financial Officer Phone: 503-615-1616 E-mail: allen.muhich@radisys.com |
| Transfer Agent |
| Computershare Shareowner Services 480 Washington Boulevard Jersey City, NJ 07310 Phone: 877-897-6915 Corporate Website: http://www.bnymellon.com/shareowner/isd |



