Not an expert on ITS but I don't see how it would make a difference wether the phones were on the same LAN or over a VPN as long as you have the VPN setup so that PCs can see and talk to each other the phones should follow suit. No PATing or anything like that. I do the phones over VPN with Call Manager Senior all the time with no problems. Call Manager junior should be o.k. I would think. Anyone else?