Skype lets you call on other computers or phones. Skype calls have good sound quality and security with end-to-end encryption. We don’t even need to configure the firewall or router or other networking gears. Moreover, Skype works equally well with windows and on Mac OS X, Linux and PDA’s using pocket PC. With Skype on your PC you can make audio/video calls, manage your calls, can add contacts, can make group for contacts, can send messages or emoticons, and can enjoy group chat with friends, conference calling and much more.
So download Skype on your pc and start making calls around the world.