openssl

应用背景这是利用一些数学运算对信号进行相位计算的算法。关键技术CORDIC算法给出正确的相位值，采用一些计算。 ；

企业电话语音录音管理系统,本系统 采用人机对话的操作方式，界面设计美观友好、操作灵活、方便、快捷、准确、数据存储安全可靠。  系统可以进行来电显示和来电接听等功能。  提供电话拨出功能，可以通过程序拨出电话。  提供客户管理功能，记录客户信息，并可以在拨出电话时以电话簿的形式显示客户信息。  提供电话录音功能，当电话接通时开始录音，当电话挂断时结束录音。  提供录音管理功能，可以通过程序修改录音文件的存储位置。  系统最大限度地实现了易维护性和易操作性。  系统运行稳定、安全可靠。 -the use of man-machine dialogue mode of operation, beautiful and friendly interface design, operation flexible, convenient, fast, accurate, secure and reliable data storage.  system can receive Caller ID and call functions.  set aside to provide telephone functions can be allocated through the telephone process.  management capabilities to provide customers, record customer information, and can be allocated at the time of telephone directory information of the client form.  Telephone recording function to provide, when the start recording when connected to phone, phone to hang up when the end of recording time.  manag

基于sip的服务器程序，java编写，很不错的-Procedures based on the sip server, java prepared, very good

RADVISION RTP源代码-RADVISION RTP source code

3G umts communication program. Make call through pc to 3G phone. -3G umts communication program. Make call through pc to 3G phone.

The Java SIP library

eXosip-2.3.0.1：eXosip最新版本，配合Osip使用-eXosip- 2.3.0.1 : eXosip latest version, with the use of Osip

RealNetworks公司的Helix 的客户方部分源码．-RealNetworks Helix client part of the source code.

跨平台（Linux，Windows）的开源SIP服务器端-Cross-platform (Linux, Windows) open-source SIP server-side

H323协议的Windows实现，开源代码，可直接使用。-Windows realize H323 protocol, open source code, can be used directly.