In Australia, POTS service has essentially been discontinued with the implementation of the NBN https://www.nbnco.com.au/ https://www.nbnco.com.au/ So even if

In Australia, POTS service has essentially been discontinued with the implementation of the NBN https://www.nbnco.com.au/ https://www.nbnco.com.au/ So even if you still have copper, it doesn't have POTS service available on it. You'll be connecting to a FTTN/B/C (node/building/curb) service.