Is it any good? We migrated from Octel to CP 4.0 a year and half ago. We expanded our feature set significantly. The only problems we've had were related to Microsoft updates for worm/virus prevention caused by the fact that NT 4 version that runs on CallPilot is a Nortel Proprietary install that has to be updated by them. Amidst the Zotov and Blaster virus outbreaks, Nortel wasn't as quick to the plate with a software solution as I would have liked, but by taking network-based preventative measures, there was no real issue. Like any mission-critical enterprise system, Call Pilot has its nuances, but it's a very reliable and very robust system overall.