介绍了目前通信市场需要的移机不改号业务的概念及实现的方法。由于移机不改号业务是在智能网上实现的，所以还特别介绍了智能网的概念。讲述了实现移机不改号业务的关键部位及目前移机不改号业务存在的缺点等等 Introduced the current communication market needs shift machine does not change the concept of business and the realization of the method. As the shift machine does not change business is realized in the smart network, it also introduced the concept of intelligent network. Describes the key parts of the business to achieve the transfer machine does not change the name and the current transfer machine does not change the business shortcomings and so on