互联网日益普及,使用Internet的人越来越多,通过Internet打电话也成了一种新时尚。你只要有一台可以上网的电脑就能用非常低的费用与远隔万里的朋友畅谈,不必再担心高昂的电话费。常用的Netmeeting、Cooltalk等网络通话软件都有一个缺点:就是通话的双方都要有一部能上网的电脑,并且要求 The increasing popularity of the Internet, the use of the Internet more and more people, by calling the Internet has become a new fashion. As long as you have a computer with Internet access, you can talk to friends in remote locations at a very low cost without having to worry about expensive phone bills. Commonly used Netmeeting, Cooltalk and other Internet calling software has a disadvantage: that is, both parties to a call must have a computer with Internet access, and requirements