We can easily transplant the system into other domains such as faxes encrypting, IP Phone and private data network by changing the interfacing circuit and adding or deleting software modules.
通过适当地修改接口电路和增删软件模块，可以很方便地把所提出的系统方案移植到其它类似的应用领域中，如传真加密、IP电话加密、专用网络的数据加密等。
This article describes the concepts of IP phone, key technology, realization principles, software and hardware supports.
本文作者阐述了IP电话的概念、关键技术、实现方式及所需的软、硬件设施。
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