基于会话管理的软交换呼叫控制模型研究.pdf

2 2 Vol. 2, No. 2 2016 6 JOURNAL OF COMMAND AND CONTROL June, 2016 1 1 1 1 2 , . , , . , , . , , , , , , . [J]. , 2016, 2(2) : 157161 DOI 10.3969j.issn.2096-0204.2016.02.0157 Call Control Model of Softswitch Based on Session Management CHEN Bo1 ZHANG Hui-Rui1 DU Xiu-Li1 WANG Yun-Ming1 2 Abstract Existing call control technology of softswitch lack of eective control led to low quality of service. We propose a call control model of softswitch based on session management. The model, based on the original softswitch call control model, adds session management sub – model, establishes a session authentication and access method according to the relations of session and call, and reduces the number of authentication through managing the call leg of legs queue. The simulation results show that the model can eectively reduce the call blocking rate, reduce average delay and network load, and improve the quality of service. Key words softswitch, call control model, session management, session authentication Citation CHEN Bo, ZHANG Hui-Rui, DU Xiu-Li, WANG Yun-Ming. Call control model of softswitch based on session management [J]. Journal of Command and Control, 2016, 2(2): 157161 , , [4] , . [5] – , . (Signalling and Bearer Separated Call , State Model,SBS-BCM) , , . , , [6] , SIP(Session Initiation Protocol, SIP) [13] . , (Basic . [78] Call State Model, BCSM), , , , , , , . , . P916 ,