华为ＧＳＭ模块的测试程序，其中包括拨打电话，接听电话以及来电显示等功能，适合学习ＧＰＲＳ入门...

一个很好的串口通讯代码，非常实用，功能及其强大，一定要下载- A very good string mouth communication code, extremely practical, the function and its is formidable, certainly must download

GTP信令规定了移动台MS接入GPRS网络的隧道控制和管理协议要求，信令主要执行建立、修改和删除隧道的功能。在用户面，GTP利用GSN之间建立的隧道传送用户数据分组。-GTP signaling provides GPRS mobile station MS network access control and management of the tunnel requirements in the agreement, signaling the main executive to establish, modify and delete functions of the tunnel. In the user plane, GTP using GSN tunnel established between the transmission of user data packet.

rfid 开发系统，含技术资料和软件开发源代码-rfid development system, including technical information and software development source code

用VC++编写的发短信的程序， 用串口和手机通信。 支持csv格式的电话本。 支持超长短信。 unicode

Modbus Protocol specs

JTAPI是由Sun公司提出的基于Java语言的应用程序接口。由于JTAPI是基于Java的应用接口，使得JTAPI的对象独立于操作系统和硬件平台，支持跨平台的应用。JTAPI定义了一套类库，包含电话功能和扩充功能。JTAPI结合了传统的电话服务和Web处理能力，具有较强的功能。但是，基于Java的特性，使得JTAPI在拥有强大功能的同时，也失去了普及和推广的基础。-JTAPI by Sun"s Java language on the application program interface. As JTAPI is a Java-based application interface, JTAPI makes the object independent of operating systems and hardware platforms to support cross-platform applications. JTAPI definition of a set of class libraries, including telephone functions and expansion capabilities. JTAPI combination of traditional telephone services and Web processing capability, and a strong function. However, based on Java, which makes JTAPI the powerful functions, lost popularize and promote the foundation.

ITU SS7 AIF message format and codes part 5

利用计算机串口通信，实现对GPRS模块的控制，并进行英文及汉字的编码及发送功能。-Computer serial communication is used to achieve control of the GPRS module and the code in English and Chinese characters and send functions.

使用VB的OPC客户访问的最简单程序,本程序为查找服务器、组、项目的列表程序，同步访问程序请找ASync-VB.rar,需要异步的查找ASync-VB.rar-The use of VB

通过Winsock API实现UDP聊天的程序- Realizes the procedure through Winsock API which UDP chats