Jitsi on local network with multiple segments

Hello.

I’ve installed Jitsi instances on VPS with no problems at all, just specify the domain name and it just works, plug and play! Now, I’m trying to install on a local network, but I can get video and audio transmission to work, text chat is working. Don’t forgot to mention that my local network have multiple segments, a segment for servers, another one for desktops, another one for wireless access. My Jitsi box is on the servers segment, what configuration parameters I need to adjust in order to my installation being fully functional through all my network?

Thanks in advance!