KPhone is a SIP (Session Initiation Protocol) user agent for Linux, with which you can initiate VoIP (Voice over IP) connections over the Internet. KPhone requires KDE (K Desktop Environment) or at least various libraries from the KDE package. KPhone

oSIP实现了会话初始协议Session Initiation (由IETF发布为RFC 3261)。它可以为多媒体应用程序(IP电话，等等)提供信令功能。它为SIP语法提供了一个完全可用的语法分析器，实现了草案中定义的“事务”层。它也提供了一个SDP分析器和为用户代理提供的额外功能。它可以用于建造代理服务器和IP电话-oSIP achieve Session Initiation Protocol Session Initiation (released by the IETF as RFC