中国移动通信企业标准中国移动CM-IMS会话初始协议（SIP）技术规范第二部分：SIP的消息CM-IMSSpecificationsofSessionInitiationProtocol(SIP)Part2:SIPMessages版本号：1.0.0中国移动通信集团公司发布2011-7-27发布2011-7-27实施QB-C-018.2-2011目录前言............................................................................................................................................VI1.范围..........................................................................................................................................12.规范性引用文件.......................................................................................................................13.术语、定义与缩略语...............................................................................................................44.SIP消息概述............................................................................................................................54.1.SIP消息起始行................................................................................................................54.2.SIP消息头域....................................................................................................................64.3.SIP消息体........................................................................................................................74.4.SIP协议中的URI............................................................................................................84.4.1.SIPURI.................................................................................................................84.4.2.SIPSURI...............................................................................................................94.4.3.TELURI.................................................................................................................94.4.4.SIPURI与TELURI的转换................................................................................95.SIP请求消息............................................................................................................................95.1.SIP请求消息格式........................................................................................................95.2.INVITE.........................................................................................................................105.3.ACK...............................................................................................................................115.4.BYE...............................................................................................................................115.5.CANCEL.........................................................................................................................115.6.REGISTER.....................................................................................................................125.7.SUBSCRIBE...................................................................................................................135.8.PUBLISH.......................................................................................................................135.9.NOTIFY.........................................................................................................................135.10.UPDATE.............................................................
