Raketu is the program designed to call from your computer to anyone anywhere worldwide. This application is free and your video calls are free also. You only have to download and install this program on your computer and start adding your contacts. It lets you call your friends, video call them, use the instant messaging tool and tranfer files with them totally free of charge. No matter where you are nor where they are you can stay in touch saving money at the same time. It supports all operating systems. It has a nice and friendly interface that makes it easy to use. Download this free version from the link below.