一个用c代码写的sip协议代理服务器，有权限管理，根一个media代理服务器配合就可以有media代理功能，linux c程序员可以-c code with a written agreement sip proxy server, rights management, media-a proxy server can be a complement to media proxy functionality, linux c programmers can s

结合OpenSIPs作为高效可扩展的传输媒体流服务器。-MediaProxy is a media relay for RTP/RTCP and UDP streams that works in tandem with OpenSIPs to provide NAT traversal capability for media streams from SIP user agents located behind NAT.