内含GB2818测试的文档和测试程序，主要为搭建自己的SIP服务器，然后通过测试程序就可以进行注册等操作(Contains GB2818 test documents and test procedures, mainly for building their own SIP server, and then through the test program can be registered and other operations)

GB28181 2016最新国标 高清pdf非扫描版带目录(HD PDF non scanning version with contents)