...is my "house phone" both in Illinois and Florida (I'm a snowbird). I carry the unit with me and hook it up to my computer when I move to the other state. I have not had an ounce of trouble from day one. I pay Ooma a little over $4.00 a month for some kind of tax and 9-1-1 caller ID service. When I move to the new location all I do is go to Ooma's website and change my service address for 9-1-1 purposes--all very clean and easy. Chuck T.