In order to properly use our WebRTC services customers will need to apply some allow rules on their Firewalls.
*.webrtc.voip.cm.com refers to subset of servers which can scale up at any moment, so bare that in mind when suggesting FW rules:
01.webrtc.voip.cm.com
02.webrtc.voip.cm.com
03.webrtc.voip.cm.com
04.webrtc.voip.cm.com
05.webrtc.voip.cm.com
06.webrtc.voip.cm.com
07.webrtc.voip.cm.com
08.webrtc.voip.cm.com
Stun/Turn
TCP and UDP nl.stun.voip.cm.com
Ports: 3478 and 5349
TCP and UDP nl.turn.voip.cm.com
Ports: 3478 and 5349
UDP Ports: 10000-65535
Signalling
TCP (HTTPS) traffic towards *.webrtc.voip.cm.com
Ports: 443
Media
UDP (DTLS) traffic towards *.webrtc.voip.cm.com
Ports: 10000-65535
Currently we are using a smaller range, but it is better if they allow wider up front, so that we can safely change.