VB编写的GPRS上位机通信界面，及内部程序。VB GPRS GSM .-VB, GPRS PC communication interface, and internal procedures. VB GPRS GSM.

用于GPRS通讯的服务器端通用调试程序；已编译成功，可以直接使用；可以同时与多路GPRS终端数据通信。包含VB源代码。-GPRS communications for server-side debugger GM has compiled successfully, you can directly use can be simultaneously GPRS terminals with multi-way data communications. VB source code incl

vb编写的用于GPRS通讯的数据中心程序。可用-vb prepared for GPRS communications, data center program. Available