opensip+rtpproxy+mediaproxy搭建sip

https://blog.csdn.net/qq_25672665/article/details/82623495

https://blog.csdn.net/u011026329/article/details/50821679

https://www.xdty.org/1709

http://voiprookie.blogspot.in/2009/04/rtpproxy-12x-installation.html

http://voiprookie.blogspot.in/2009/04/blog-post.html

跟着以上链接基本没啥问题了，不过我最终搭好的在限制锥形NAT下有问题，同一网段下的NAT也有问题。