【作者】 张凌苗； 徐惠民；

【Author】 ZhangLingMiao, XuHuiMin (School of Telecotnmuication Engineering,Beijing University of Posts and Telecommunications, Beijing 100876,China)

【机构】 北京邮电大学电信工程学院；

【摘要】 对IMS媒体协商的SIP信令流程进行了研究,提出了一个主要针对于在IMS中涉及多方通话的会话建立的方案。这一方案解决了在涉及多方的会话建立过程中信令流程比较复杂的问题,从而大大缩短了通话双方等待的时间。本方案通过利用规范中规定的SIP信令流程,尽可能地使一些应答信令起到更多的作用,从而简化信令流程。更多还原

【Abstract】 The sip process of media negotiation has been researched and a method that can be used to solve the problem that is result from that multi-user is involved in a session establishment is presented. Thus, the usage of this method can shorten greatly the waiting time of users. This method uses the regular response sip signaling to carry more media negotiation parameter as possible as they can, which is benefit to signaling process.更多还原