GPP(GSM/WCDMA 标准化组织)提出 IMS(IP 多媒体子系统)的基本出发点是将蜂窝移动通信网技术和 Internet 技术有机结合起来,建立一个新的面向未来的信息通信网络。Internet 的广泛应用,不但极大地促进了 IP 技术的发展,而且改变了人们的思维方式和交互模式。它能方便而灵活地提供各种信息服务,并能根据客户的需要快捷地创建新的服 GPP (GSM / WCDMA Standardization Organization) put forward the basic starting point of IMS (IP Multimedia Subsystem) is to combine the cellular mobile communication network technology and Internet technology to establish a new future-oriented information communication network. The wide application of Internet not only greatly promoted the development of IP technology, but also changed people’s way of thinking and interaction. It provides a variety of information services easily and flexibly, and quickly creates new services based on customer needs