Set NAT with External Host

If your PBX has a private IP address and is connected to a router that doesn't have a static public IP address, you can set NAT with External Host.

  1. Set up DDNS on the PBX or set up DDNS on your router.
  2. Forward the required ports on your router.
  3. Log in the PBX web interface, go to Settings > PBX > General > SIP > NAT.
  4. In the drop-down list of NAT Type, select External Host.
  5. Configure the NAT settings according to your network environment.
    • External Host: Enter the domain of the PBX and enter the external SIP port.
    • Local Network Identification: Enter the local network segment and the subnet mask. This setting will allow all your local devices to communicate with the PBX by the local IP address instead of passing through the router.
      Note: If you have multiple local network segments, click to add another Local Network Identification.
    • NAT Mode: Set to Yes.
  6. Click Save and reboot the PBX to take effect.