port forwarding

  1. Modifying RTP/WebRTC ports

    Good day, I'm running multiple own-hosted/on-prem 3CX servers behind a Firewall and NAT. Most of those servers share an external IP address and have different port ranges for their SIP and tunnel traffic. Only a few of them require the webclient so I've been attempting to forward the WebRTC...

  2. Solved Desktop app and Tunnel question

    Hi We get bruteforce attacks all the time on the webinterface (default port 5001), despite using beeing subscribed to the 3CX global ip blacklist. So we deactivated the port forwarding to this port and told the users who use the webinterface to connect to some VPN before using the webinterface...
    • SirPcsvA
    • Thread
    • 3cx android app 3cx desktop client 3cx tunnel 3cx webinterface port forwarding
    • Replies: 10
    • Forum: Web Client

  3. Port 5060 - Open or not?

    Just looking for advice from the experts here on whether you generally recommend leaving port 5060 open or restricting access on your installs. I realize that use case would dictate whether they need to be open but looking for general advice on how others do it? Thx
  4. akjon RooSho

    Having issues with Firewall

    Hello, From last few days I'm having issues with registering with remote 3cx phone clients. I looked back on the firewall test on 3cx Console and got some fault. I looked into my MikroTik firewall and couldn't identify the problems. Can anyone help me here? My router is configured with...

  5. Solved Phone not registering through STUN

    Hello, I am new on 3CX and had gone through the following thread link but still facing the problem with phone registration. Following are the installation details 3CX Version: 15.5.0 Server Installation Location: Google VM Number of Extensions: 20 Extension configured through STUN...
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