Access jitsi from restricted networks

hi,
i have a little problem when using jitsi. I’ve installed it using the quick install guide and it’s working fine except when someone try to join the conference from a restricted network. My server does not have firewall or nat working on it, can someone help me solve this problem? (i already looked plenty of topic on this kind of issue but didn’t find any solutions).
Thanks

My guess is that you need a turn server(coturn) running on different ip-address listening on port 443 using trusted certificate.
Does those restricted networks work with meet.jit.si? This is what we use for meet.jit.si, coturn on port 443 where it can fallback in this situations and will be using tcp as a transport, and quality will suffer, but at least it will work.

There are multiple posts in the forum and examples how to configure it.

Thanks for your quick answer,
i’ll try this and see if it work