用Delphi写的 网络IP电话源代码 一些平时开发Delphi的技巧，和大家共享-write with Delphi IP telephony network source code to develop some peacetime Delphi skills, and share

一个用于局网检测哪些IP被占用的小工具，附源码，自己学习delphi的作业。-one for the Bureau of IP network testing which was occupied by the small tool-source, delphi study their operations.