I have tried to use landline to call overseas today (Hong Kong), it is found that it is unsuceesful. I am using Your NBN50 and do not add any plan for "Voice Add-on". I think I am using "Pay as you go" to call overseas.
Please advise how to call overseas?
"Pay as you go" has no included calls. You have to make a pre-payment to cover your calls.
Log in to My Account, go to NBN Digital Voice Services, View NBN digital voice service account.
You can add prepaid balance.