It has voice calls and video conferencing, not the same.

Do people not use discord for voice chat? Hop in hop out permanent voice channels that show if your friends are already in or not?

Last I looked you have to use Discord, Teamspeak, or Mumble for this

I would imagine that a demonstration unit has already been sent

This isn’t just jamming signals, it’s microwaving the electronics from a kilometer away so it will work against fibre optic controlled drones as well