摘要
提出一种基于软件的分布式交换和控制的SIP终端的实现方案。根据SIP分层结构和相应的通信模型,将SIP移植到嵌入式系统,形成一个智能用户终端,实现SIP终端与PC的话音、数据以及多媒体的通信。对系统进行的PESQ(感知评估语音质量)测评结果表明,该SIP终端系统的性能较好。
A reference design of SIP(Session Initiation Protocol) terminal based on soft distributing switch and control was proposed.According to the SIP hierarchical structure and communication framework,SIP was transplanted into embeded system to integrate an intelligent user terminal,on which realized the voice,data and multimedia communication between SIP terminal and PC.The PESQ (Perceptual Evaluation of Speech Quality) results show that the terminal system has a well-pleasing performance.
基金
国家自然科学基金项目(编号No.60572021)研究成果。
