https://www.geeksforgeeks.org/socket-programming-multi-threading-python/

https://blog.terresquall.com/2021/10/running-python-in-xampp/

https://msarfati.wordpress.com/2015/06/20/python-hl7-v2-x-and-hl7apy-introduction-and-parsing-part-1/

https://blog.p2hp.com/archives/8419

https://www.cnblogs.com/whf191/p/12320535.html

打开/usr/local/freeswitch/conf/sip_profiles/internal.xml，value值需要修改为公网IP

（如果freeswitch在公网工作的话，内网可以不管）

    <param name="ext-rtp-ip" value="x.x.x.x"/>
    <param name="ext-sip-ip" value="x.x.x.x"/>