摘要
简要地介绍网络电话的发展趋势，分析了中国发展网络电话（国际）的必要性、可靠性，并通过试验证明其实用性。
This paper introduces the development tendency of Iphone in brief,then analyses the necessity and feasibility of developing Iphone in China.With the experimentation,the author proves Iphone's practicability and predicts that it will take place of the traditional IDD.
出处
《电力系统通信》
1999年第3期34-35,共2页
Telecommunications for Electric Power System
