 So UMA, the interesting thing about the way they work is that you basically buy the device for anywhere from $70 to $100, and then the phone service is free. You just have to pay the monthly taxes and fees, and you can put your phone number or your zip code in online, and it will tell you how much the taxes and fees are. For where I live, it's under $10 a month. So highly recommend it. It will work with your phones. The other thing to look at is called MagicJack.