Once you acquire a TPG NBN FTTN service, you cannot go back to the TPG ADSL services. Another restriction is you cannot cancle either one of the data or voice services with cancelaltion of any one leading to cancellation of both.
The digital voice services are unlimited for local calls(excluding 13/1300 calls) and unlimited for National calls to landlines. Calls to standard Australian mobiles cost 39 cents per minute and also have the call connection charge of 39 cents. The bundle comes with 100 International minutes per month.
The minimum upfront charge includes $89.99 fee for the first month, digital voice prepayment outside the included value of $20, setup charge and equipment delivery fee.