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电话已成为各类建筑物必设的弱电系统,电话已成为人们最方便最普及的一种通信工具。随着信息技术的发展,传统电话势必被新出现的IP电话取代。本文阐述IP电话的工作原理、技术特点、经济效益和社会效益,以及对IP电话的展望。
Telephone has become a weak system in all buildings. Telephone has become the most convenient and popular communication tool for people. With the development of information technology, the traditional telephone is bound to be replaced by the new IP telephone. This article describes the working principle of IP telephony, technical characteristics, economic and social benefits, as well as the prospects for IP telephony.