Hi @demmett,
Welcome to TPG Community!
We found a User Guide that may help you on how to configure your modem/router.
If you are going to use it as the main modem/router for your NBN FTTN service, you need to make sure that it will be configured with VLAN ID 2 and the connection type is PPPoE that will require your TPG username and password.
You may contact Netcomm support for further guidance with their modem.
NOTE:
The VoIP phone will not work on any Third party device.
Regards,
BasilDV
