It's definitely a challenge, but another good thing about HN is people link alternatives in threads like this. I'm already checking out Jitsi (mentioned up thre

It's definitely a challenge, but another good thing about HN is people link alternatives in threads like this. I'm already checking out Jitsi (mentioned up thread) and it looks awesome. It's even open source: https://jitsi.org/ https://jitsi.org/