One feature I would really like to see and I think would be very easy to implement is voicemail blasting. That is, say, if I am a department head and want to send a voicemail to everyone in my department, all I need to do is leave one voicemail message, and have it propagate to all my people. For example, I leave a voicemail for mailbox '500', and the message gets copied to users 501, 502, 503, 504, etc. Thats just a few lines of PERL. The ability to configure voicemail groups via Thirdlanes web page is what would be slick in my opinion.