SMS短信编码解码，包含编码表及编码解码转换函数以及测试主程序-SMS message encoding and decoding, including the coding table and codec conversion function, as well as testing the main program

C#短信猫发送接收测试程序,通过串口进行通讯，协议已被封装，本程序只是利用现成dll中的函数进行短信操作。-C# test program to receive or send sms message under the modem