TURN协议到SIP协议的适配
Adaptation of TURN protocol to SIP protocol
摘要：
SIP协议是当今互联网通信领域中的一个优秀协议。但是，它属于应用层的事实构成了相对于NAT穿越的弱点。这个弱点是由于服务器响应客户端请求的方式造成的。另一方面，它是由用于RTP/RTCP分组的发射和接收的UDP端口的动态分配引起的。TURN协议可能会面临这一弱点。然而，它的使用需要在建立多媒体会话之前在客户端和TURN服务器之间进行一定数量的交换，这增加了延迟时间。在这篇文章中，我们提出了适应TURN协议的SIP协议的基础上，如电话在互联网上，会议视频等，这种适应优化的建立多媒体会话的TCP连接和多媒体流控制器到SIP代理服务器的管理器。
英文摘要：
Today, SIP is a protocol par Excellence in the field of communication over Internet. But, the fact that it belongs to the application layer constitutes a weakness vis-a-vis the NAT traversal. This weakness is due to the way in which the server replies to the requests of clients on the one hand. On the other, it is caused by the dynamic allocation of UDP ports for emission and reception of packets RTP/RTCP. The TURN Protocol may face this weakness. However, its use requires a certain number of exchanges between the clients and a TURN server before establishing the multimedia sessions and this increase the latent time. In this article, we propose to adapt TURN protocol for applications based on SIP protocol such as telephony over Internet, conference video, etc. This adaptation optimises the establishment of multimedia sessions by integrating a manager of TCP connections and multimedia flow controller into SIP Proxy server.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
