I'm working on a project to our HQ. I have an opportunity to replace our older Mitel PBX with a VoIP solution. Our data infrastructure is Cicso. As IT Manager, I'd prefer Cisco for superior product and excellent service from VAR. The Voice manager prefers Mitel. I feel Mitel's solution of placing VoIP PBXs at all sites is poor, whereas Cisco only one PBX with two voice cards in the showroom routers each. Any suggestions if costs overall is similar? We have 350 employees (150=HQ, 100=Showroom employees at 10 location across US and 100 sales people working from home.