Anwendungs Server als Client betreiben mit Indy

[QuickAndDirty]

I get it now.
Google and other institutions have free STUN/TURN servers up and running to further the adoption of WEBRTC
So Supplying the Peers with the list of free STUN servers with our STUN server at the top.
Would ensure that our STUN server has a long list of backups, while we also only have to run one STUN server ourselves and thereby ensure that the providers of free STUN servers don't feel abused.
What do you use to test the stun/turn servers?

Edit:
According to this Document I would need a TURN server.
https://www.viagenie.ca/publications...n-turn-ice.pdf
I'm beginning to understand what it's all about.
Never would have thought that STUN works behind a Sophos Firewall. It needs a TURN Server.