I'll need the following ports to be open for incoming traffic to the 3CX. PBX 3CX WebRTC / UDP 9256-9500 PBX Web Access 5001 / TCP 5001 PBX Media Server (RTP) / UDP 9000-9255 PBX Phone System (SecureSIP) / TCP-UDP 5061 PBX Remote Tunnel 5090 / TCP...