I'm an expat in London, and all my family is in the US. Most of them have unlimited cell phone calls. In my flat, I have a wireless two phone system I got at Curry's for £20. I have a local Denver phone number that rings in my flat. It is awesome! My kids can call a local US number, and it is cheap for me. My wife can call the states and talk for as long as she wants. (We had $1200 cell phone bills during our first three months here) I have had zero problems in the 4 months I've had the unit. The only issue that I have is that the computer it's connected to needs to be rebooted every couple of days, and it takes about 5 minutes for the MJ unit to start up. Not really a big deal.