If you are a user of the iPhone or an Android smartphone there is a new app out that will let you text and call pals using VoIP for free. The app is called Viber. Obviously, you need some sort of data plan or access to a WiFi network for the app to function. The app will operate on WiFi and 3G networks. That means you can make free VoIP calls to anyone while you have a 3G connection. The calls will use your data allowance though.