These are instructions for using a USG with an ISP’s existing router with VOIP.

  1. Configure the USG to a differing ip and subnet eg 10.0.0.1 - 10.0.0.0/24 than your ISP routers usually 192.168.0.1. More info
  2. Set USG WAN to DHCP and clear the VLAN, plug into NF18ACV LAN port
  3. On NF18ACV disable WIFI, keep DHCP on.
  4. Done

Notes:

  • You can even access the NF18ACV configuration page from the other subnet.
  • With USG as primary router the NF18ACV Voip was constantly dropping and only 1 way communication.

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