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随着电信网络的发展、人们已经认识到，未宗可能发生的最大变化将是现有的电信框架．（特别是电路交换及其组网技术）逐步转向以数据（特别是ＩＰ）为基础的电信新框架。数据业务将最终超过电话业务而成为电信网的业务主流。不难看出，宽带化、数据化、个人化将成为电信网发展
With the development of telecommunication networks, people have come to realize that the biggest change that may take place will be the existing telecom framework. (Especially circuit switched and its networking technology) to a new telecommunication framework based on data (especially IP). Data services will eventually exceed the telephone business and become the mainstream of the telecommunications network business. It is not difficult to see that broadband, data and personalization will become the development of telecom networks