SIP. Understanding the Session Initiation Protocol Second Edition.rar全面介绍SIP RFC...

本程序使用VB语言编程，使用WinSock控件完成的点对点（P2P）聊天和文件传输程序。可以实现两台机器间互发消息，并且有聊天和文件传输记录，安全可靠。-procedures for the use of the VB programming language. Use Winsock Control to complete the peer-to-peer (P2P) file transfer and chat procedures. Can be achieved between the two machines each other copies, as well as chat and file transfer records, safe and reliable.

This simple example uses the Peripheral Support libraries to provide diagnostic functionality for a HCI firmware configuration. LEDs provide status information on the number of ACL connections in use and transmit/receive events. This application does not manage any Bluetooth connections.

ModBus的中文传输协议和调试工具MODBUS通讯测试软件设置说明-ModBus Chinese transport protocol and debugging tools for MODBUS communication test software setup instructions

winzip的源程序-winzip source

移动通信基本知识:从通信网的角度看，移动网可以看成是有线通信网的延伸，它由无线和有线两部分组成。无线部分提供用户终端的接入，利用有限的频率资源在空中可靠地传送话音和数据；有线部分完成网络功能，包括交换、用户管理、漫游、鉴权等，构成公众陆地移动通信网PLMN。从陆地移动通信的具体实现形式来分主要有模拟移动通信和数字移动通信这两部种。-Basic knowledge of mobile communications: From the perspective of communication networks, mobile networks can be seen as an extension of wired communication network, which is both wireless and wired components. Part of user terminals to provide wireless access, frequency of use of limited resources in the air and reliable transmission of voice and data wired part of the completion of network functions, including switching, subscriber management, roaming, authentication and so on, constitute a public land mobile communication network PLMN. From land-based mobile communications to the specific forms of the main points have analog and digital mobile communications that two kinds of mobile communication.

利用串口方式读取数据库，对于实时监测系统有帮助- Reads using the string mouth way takes the database, has regarding the real-time monitor system helps

2005031011034913224Socket通讯程序，从事SOCKET通信开发技术人员-2005031011034913224Socket communications procedures, SOCKET engaged in the development of communications technology staff

西门子S7200PPI档案 PPI通讯方式通讯协议,适合驱动程序的编写参考-Siemens PPI file S7200PPI communication protocol for the preparation of reference driver

一个通过opc通讯的源程序，是用dephi语言写的，比较实用-through a communication source, phi is the language used to write, more practical

C++点对点视频聊天代码,视频流畅,控制功能丰富。-C code point-to-point video chat and video fluency, control functions rich.