Ambulance cover is provided by the State government for Queensland residents (https://www.ambulance.qld.gov.au). This includes cover whilst interstate.
Other features of this ambulance cover: Residents of QLD are covered under their state ambulance service scheme Australia-wide and benefits for ambulance services are not payable by CBHS.
For further information about this policy see: https://www.cbhs.com.au/health-insurance/ambulance-cover