3cx ports

  1. Issues after upgrade from v18 to v20, PWA App stuck in constant Disconnect/Reconnect Loop.

    Hello, First time poster, long time forum trawler. We recently upgraded one of our clients from v18 to v20 on a cloud hosted Debian Server. I went through the checklist that I found in the blog posts, although this was helpful it seems to be missing some key details. The most important one...

  2. Solved Windows Server 2019 Firewall Issues

    I'm running 3CX on a Windows Server 2019 machine and I think there are some weird issues going on with the port forwarding. All of the rules are defined in Windows Defender and the phones work from inside the building, but not from outside. As of today, they are no longer displaying the correct...
  3. Moawia Noor

    Changing the 3cx default ports

    Tomorrow we upgrading an H.O 3cx server from 14 to 15.5, we are aslo willing to change 3cx default ports, reason behind is to avoid ISP blocking sip traffic. Did anyone try the same scenario? Did it work ? Can we go back to default ports if things went ugly ?
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