基于SIP的来电转移业务实现
首发时间:2008-12-31
摘要:随着通信技术和互联网应用的发展,传统电信业务需求正在向固定移动融合、语音与互联网应用相结合的综合信息服务发展。IMS(IP多媒体子系统)是一个能够融合数据、语音和移动网络的体系,而作为IMS的重要组成部分之一的SIP协议,必然成为3G网络时代实现多媒体应用的关键组成部分。SIP协议的可扩展性和易用性能够有效加快新业务的开发,因此与SIP协议相关的标准已经成为通信和网络领域的研究热点。本文在分析SIP协议体系和IMS网络基本结构的基础上,给出了无条件、无应答和遇忙来电转移的基本业务特征和定义,并分析和实现了基于SIP协议的来电转移业务的基本信令流程。
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Implementation of call forwarding using SIP
Abstract:With the IP Multimedia Subsystem, the traditional services provided by telecommunication are transferring to combine with Internet and voice application. IMS provides the ability of merging data, voice and mobile network. With the feathers of high flexibility, SIP can help IMS to add or modify services more easily and efficiently. This paper is dedicated to give a detailed view of call forwarding service including unconditional, timeout and busy forwarding and a basic implementation of SIP call flows for the three kinds of forwarding.
Keywords: SIP IMS Call forwarding
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No.2716437092512306****
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