Walkietalkie is a completely free to use application that gives you the opportunity to perform worldwide calls without paying extra charges or fees. This program enables you to identify the IP calling address and connect with other computers to keep in touch with the people you love or work with. Also, you can communicate with more than two people living in two different countries at the same time, all you need to have is a computer and an internet connection. It works by using your microphone. There are not intermediary severs and works by connection one computer to the other directly avoiding interruptions or erros.