Skype is a American mainstream network of real-time voice communication tool, but also a global free voice communication tool. 2 millions of people love using instant messaging software, it can free high-definition dialogue with other user speech, also can dial domestic and international long distance, both the fixed telephone, mobile phone, PHS can dial, in addition, Skype also has many people video chat, voice conference, people chat, transfer files, text chat and other functions, so that the people of the world to communicate more convenient.