Yep. I have 2007 outlook running with LANCTE for dialing the phone, and also for Unified Messaging. I have it on both BCM 50 2.0, and BCM 400 4.0. Both were just upgraded from 3.7, and 1.0 and it worked then also. Keep in mind, Microsoft has a 7 year deal with Nortel to develop Office Communication Server. Cool stuff.