KphoneSI (kpsi) is a SIP (Session Initiation Protocol) user agent for Linux, with which you can initiate VoIP (Voice over IP) connections over the Internet, send Instant Messages, subscribe your friends prese

KphoneSI (kpsi) is a SIP (Session Initiation Protocol) user agent for Linux, with which you can initiate VoIP (Voice over IP) connections over the Internet, send Instant Messages, subscribe your friends prese

SIP协议是一个用于建立，更改和终止多媒体会话的应用层控制协议。它是IETF多媒体数据和控制体系结构的一部分并大量借鉴了成熟的HTTP协议，具有易扩展、易实现等特点，因此非常适合用于实现基于因特网的多媒体会议、IP电话等系统。本系统使用Java实现了一个简单的VOIP电话应用系统。-SIP is a protocol for the establishment, modification and termination of multi