We have used MagicJack for 2 years now and found that some of the problems were OUR fault. You must have very high speed internet (and a newer computer helps) and it works best if plugged directly into your computer - not through a router. (Not doing it this way will give you static and not as good service.) It works just like a regular phone. If you don't use just your computer (sit there and talk) you can buy a set of "base" phones with extensions to put around the house. The base phone (#1) has to be plugged into the computer and then the extensions are just plugged into an electrical outlet and ring also - we have 2 extensions in our house. We found $20 a year plus the cost of the "base" phone set was well worth it. We save $400 a year by NOT using AT&T.