Another alternative is a VoIP adapter that plugs into a personal computer, such as Magic Jack. This is a rather unconventional VoIP system that involves a USB adapter and your computer. It has a very low fee, but many people stay away from it because it requires the computer to be connected at all times. What they don’t understand is that this is roughly the same as any other VoIP setup. For instance some cable companies offer a telephone service that runs through a cable box. Essentially the cable box is a computer, but because it is a dedicated connection, there are fewer issues.