it is not possible to configure externally a coturn with TLS at this moment. Unfortunately the coturn ip is hardcoded in some parts of the code as 3478 and it can’t be changed to 443. Anyways it is in our roadmap to parametrize this value. The more reasonable solution at this moment is to configure another STUN/TURN by configuring it via openvidu-browser: https://docs.openvidu.io/en/2.16.0/api/openvidu-browser/classes/openvidu.html#setadvancedconfiguration