The listing, Magic Jack - Add a extra phone line or add to computer has ended.
This is one of the first "magic jacks" to come out! We used it for years and paid like 19.99 for a year of free phone. My mother in law still has hers that we bought for her. This works just like new and I have the cd (hopefully in my cabinet), but if not, you plug your phone in that you want to use (old school phone) and plug into usb port on computer or laptop and pay to start and then you have a free phone. You can pay by the year which I think is now $29.99 or pay for more time. It's an amazing great working product.