很好的通信系统仿真源程序，在visual studio 2003 下调试过，包括基本的无线系统信道，调制等技术的仿真方法！-good communication system simulation source code, the visual studio 2003 downturn tried basic wireless access systems, the modulation technologies such as simulation!

AVAYA IPO 430系列交换机 TAPI 2.0软件电话源代码，可以实现基本的软件电话功能。-AVAYA IPO 430 Series switches telephone TAPI 2.0 software source code, can achieve the basic functions of the software telephone.