计算机应用与软件Issue(3)：108-111,4.DOI:10.3969/j.issn.1000-386x.2014.03.029
基于 SIP 的家庭网关呼叫管理状态机研究与实现
RESEARCH AND IMPLEMENTATION OF SIP-BASED HOME GATEWAY CALL MANAGEMENT FSM
摘要
Abstract
It is a focus in home gateway research to realize high performance VoIP business.SIP is one of the widely used signaling control protocols in VoIP technology.The article outlines the initial concepts of SIP protocol,and then studies the initial principles of the protocol from three angles-message types,call process and media consultation;it divides the home gateway voice software into modules and elaborates the functions of each module;it intentionally introduces the design and implementation of call management FSM,including terminal FSMand the status,events,status changes and interactions of SIP connection FSM.In the terminal FSM part,the article innovatively abstracts the hardware statuses of the analog phone into various logical statuses.Tests show that SIP signaling process conforms to RFC3261 standard and is well intercommunicative.Compared to ordinary home gateways,the proposed voice gateway performance meets carrier-grade standards.关键词
家庭网关/会话初始化协议/呼叫管理/状态机/用户代理Key words
Home gateway/Session initiation protocol/Call management/FSM(Finite State Machine)/User agent分类
信息技术与安全科学引用本文复制引用
冯健..基于 SIP 的家庭网关呼叫管理状态机研究与实现[J].计算机应用与软件,2014,(3):108-111,4.基金项目
陕西省教育厅科研计划项目（2010JK665）。 （）
