【摘要】 IP-PBX系统是近年来计算机网与传统电话系统技术融合领域的研究热点。在具备了基本通话功能的基础上,IP-PBX系统基于SIP协议实现了来话转交、来电代答等增值业务。文中介绍了IP-PBX系统的基本结构,分析了各项增值业务实现中的关键技术,提出了两种转交业务的提供方式,给出了各种增值业务的实现流程。更多还原

【Abstract】 IP-PBX is one of the hottest research directions in recent computer telecommunication integration technology domain.It supports many value-added services like call transferring and call pickup based on IP protocols.This paper gives an introduction of the network architecture of IP-PBX system and analyzes the key techniques in implementing those services such as service provide mode and detailed information flows with implementation schemes.更多还原