At least Telstra offer a check service in case you have an older 4g phone. Some discussion that some models could be affected for 000 calls.
SMS THE NUMBER 3 to 3498, we received an" ok " message shortly after doing so.
Cheers Craig
Thanks for that ...
Worked for me too.
Got a much longer response identifying the mobile number & iPhone model as well as confirming that it was 4G capable ... & saying thanks for using the service.
See Ya ... Cupie