I have a standard 2811 ISR outfitted with software CME 7.1 and CUE 7.0.5. I like to know if Exchange 2007/2010 voicemail preview feature is possible with Cisco Unity Express 7.0.5? Currently, voice mails are sent via SMTP as a wav attachment. The voicemail preview (speech-to-text) feature in Exchange would be a tremendous help for mobility users. I understand that Cisco also has Unity Server and Unity Connection. How difficult would it be convert a CUE environment to an Unity Connection?