VB的MODEM通信源代码，包括MODEM初始化，自动检测电脑串口数量，MODEM参数设置等-VB source code for the MODEM communications, including MODEM initialization, the computer automatically detects the serial number, MODEM parameter setting, etc.

利用VB串口通信原理实现PC和手机之间的短信互通-The use of VB theory to achieve serial communication between PC and mobile phone text message exchange