摘要
电话交换已有100多年的历史,最早是人工交换,经历了步进制交换、纵横制交换发展到程控交换。随着互联网技术的发展,近年发展起来的数据网已经具备了提供话音业务的能力,现在正经历着传统电话网和数据网融合的变革。从IP电话发展起来的软交换技术提供了融合的方法,为电话网的又一次演进提供了技术基础。
The telephone switch has a more than 100 years＇ history, progressed from the first manual switch, to program controlled switch.With the development of the Internct technology, the recent grown- up data network has had the capability to provide voice services. Now the integration of traditional telephone network and data network is undergoing. The soft switch technology which developed from IP telephony provided the integration method and established the technical basis for another evolution of the telephone network.
出处
《无线电工程》
2006年第12期13-15,共3页
Radio Engineering
