Working offline LAN video call software to use for medical triages? Jitsi is so buggy. Looking at WebRTC right now.

Hi! Does anyone here have any suggestions for an offline LAN video call solution or existing software that’s actually not as buggy as Jitsi at this point?

We’ve tested Jitsi on multiple setups all with bugs eg lags audio, mic cannot be read etc.

Would be used for replacing person-to-person medical triages re. COVID-19 situation. Need offline because a lot of hospitals in my area has shitty internet connection if not weak. Also as a security measure and fast deploy.

But the way things are looking, seems like the only working solutions are the online ones! However the shitty internet is really an issue.

Thanks for any suggestions!

Am looking at WebRTC right now. Such simple issues and problems for such deployments becomes huge issues esp. with quarantine!