摘要
介绍了SIP协议的基本内容,给出了一个SIP终端的设计框架,并实现了一个简单的应用程序,利用STUN实现NAT穿越,并对其关键技术进行了说明,最后对其进行了测试。SIP语音终端符合VoIP标准对延迟的要求,并能实现和其他用户代理的互通,成功穿越NAT网络。
Firstly SIP is briefly introduced, and then a design frame of SIP terminal is given. A simple application is also implemented, which is through NAT using STUN, and its key technologies are described. In the end, the SIP terminal is tested. SIP voice terminal actions accord with the VolP standard, and connect with other UA through NAT.
出处
《计算机工程与设计》
CSCD
北大核心
2008年第21期5605-5607,共3页
Computer Engineering and Design
