I have two, one old style that has to be plugged in a computer, & one of the new ones that doesn't need to be plugged in a computer. They both work great! I ported both my phone numbers to Magic-Jack, & I'm saving about $100 per month on phone service. The only hitch is you have to have reliable & fast broadband internet service. A friend tried Magic-Jack, but his cable internet was pretty slow, & it didn't work well at all. You can run a test of your internet speed before you buy & switch over, though. Good luck, whatever you do.