网络电话及其应用研究

Introduction of VoIP and Research on it's Application

网络电话具有使用方便、通信费用低廉等优势,应用越来越广泛。介绍了网络电话的三种使用方法以及在家用和商用领域的应用。

VoIP has advantage of easy to use and low-cost communications.It＇s applications become more and more widely.Three using methods of VoIP and it＇s application in household and commercial areas are introduced.