That would most likely be the National Relay Service, which is run by the Federal Government: https://www.communications.gov.au/what-we-do/phone/services-people

That would most likely be the National Relay Service, which is run by the Federal Government: https://www.communications.gov.au/what-we-do/phone/services-people-disability/accesshub/national-relay-service https://www.communications.gov.au/what-we-do/phone/services-... The NRS runs a bunch of services, including 106, the emergency number for teletypewriters, which IIRC was one of the first emergency call services in the world designed specifically for the disabled.