RIM Announces BlackBerry Mobile Voice System 5 with Voice Over Wi-Fi Calling for Avaya and Legacy Nortel Communications Systems 3rd May 2011 www.rim.com VoIP and SIP Compatible Platform Enables Integration with More In-Market and Legacy Phone Systems; Extends BlackBerry MVS to Unified Communications Application Development Research In Motion (RIM) is helping more businesses bring together the desk phone and smartphone. RIM today announced plans to ...