【摘要】 SIP协议的一个重要功能是支持移动性管理,包括终端、会话、个人和服务移动性功能。GSM网络的终端移动性存在与SIP协议描述的功能具有相似处,结合GSM的网络元素,本文最后提出在GSM网络中融进SIP网络元素。并在最后描述了简单的终端发送请求消息的流程。更多还原

【Abstract】 One of the most important functions of SIP(Session Initiation)Protocol is Mobility Management,it includes terminal, session,personal and service mobility functions.There are some similarities between GSM’s terminal mobility and SIP’s mobility functions.Base on GSM,I raise a point of linking GSM’s elements with SIP at the last of this paper,and give a simple description of process about user sends messages to others within GSM system.更多还原