I've tried using spark but unfortunately video calls don't seem to work at all when I'm on my corporate VPN (which is Cisco, btw). I really want to use it becau

I've tried using spark but unfortunately video calls don't seem to work at all when I'm on my corporate VPN (which is Cisco, btw). I really want to use it because it otherwise works on Linux (compared to webex...) but I need to be able to use it on the VPN.