IP电话的通话方式和实际应用模式

The Speech-Communication Methods and Practical ApplicationModes of IP Phone

归纳比较了 IP电话的通话方式和由 PSTN、IP网络提供话音通信的 5种组合形式 ,对 IP电话两种实际应用模式进行了详细的分析 ,最后 ,指出传统 PSTN必将向全 IP网络演进。

This paper compares the five combinated speech-communication methods by PSTN and IP network. The two practical application modes of IP phone are analyzed in detail. At last, it concludes that IP network will replace PSTN in the future.