Welcome to the Community!
We were able to locate your account using your community details and it shows that the home phone status is active.
We've created an article that will guide you on the correct setup for your NBN FTTC service. You may check NBN Fibre to the Curb (FTTC) Setup Guide.
Make sure that the handset is connected to the correct phone port to your NBN TP-Link modem.
Let us know how it goes.