Last year in stalled the 3CX trying to use it with Magic Jack but, as many others, realized it can't work. I'm in the US. Now I have a Comcast 20mb connection and a phone line coming out of the Arris Mod: 602G/CT. I only need a phone system for 3 people in the office and would prefer to use the computers to manage calls. We get quite a few calls now with 2 separate lines ( magic jack and Comcast line ) but we can do any transfers of course. How much do I really need to invest to use 3CX? Do I just need a PCI card to interface the phone line with the main PC? Do I need one of those Patton gateways? Will the free versions of 3XC work for this setup? Should I just go to Radio Shack and get a couple of PBXs and hook them up together. The forum is answering a lot of specific questions but I can't find anything of this sort. Any help is much appreciated.