摘要
提出一种基于被动模式报文分析的电力IMS语音质量测量方法,通过对RTP,RTCP,SIP报文的解析获取语音会话的时延等基本性能指标。在此基础上,提出了电力企业网内、网间话音质量评估模型,以帮助网络运维部门对骨干网中大量并发语音会话的通话质量进行实时监测及评估。研发的系统验证了模型的可用性。
An electric IMS voice quality measuring method based on passive probe message analysis is proposed, which obtains the basic performance indicators such as time delay of voice session through parsing RTP, RTCP, SIP packets. A voice quality e- valuation model is put forward to help the network operation and maintenance department to monitor and evaluate the quality of a large number of concurrent voice conversations on the backbone network. The developed prototype system verifies the feasibility of the scheme.
作者
王攀
刘世栋
WANG Pan LIU Shi-dong(Nanjing University of Posts and Telecommunications, Nanjing 210003, China Institute of Information and Communication, Global Energy Interconnection Research Institute, Nanjing 210003, China)
出处
《计算机与现代化》
2017年第3期40-45,共6页
Computer and Modernization
基金
江苏省六大人才高峰计划项目(DZXX-015)
国家发改委信息安全专项(发改办高技[2013]1309号文)
江苏省产学研前瞻性联合研究项目(BY2015011-02)
关键词
被动模式
IMS
语音质量
深度报文解析
评估
passive mode
IP Multimedia Subsystem
QoS of voice
deep packet parse
assessment
