From www2.nbnco.com.au - May 2, 2018 7:55 PM
It's important to register your medical alarm (monitored and unmonitored), autodialler or emergency call button with nbn's Medical Alarm Register.
Your registration on nbn’s Medical Alarm Register helps nbn identify households where support may be needed to help minimise a break in service before switching to a phone or internet service over the nbn™ access network. We just need to know the address of the property where the medical alarm is being used, the type of medical alarm and your contact details. Registration to nbn's Medical Alarm Register is free.