However, local outreach organisations are warning the alert could expose a vital lifeline for domestic violence survivors relying on a safe phone.
At 2pm AEST, state and federal emergency services will launch a nationwide test of AusAlert, Australia’s new emergency warning system.
Designed to send critical warnings during natural disasters ‒ such as bushfires, floods and cyclones ‒ as well as biosecurity, health and security threats, the system uses cell broadcast technology to reach every mobile phone in range of a cell tower.
However, because these messages are classified as Critical Alerts, they override standard phone settings, ringing out even if a device is switched to ‘silent’ or 'do not disturb' modes.
This feature could pose a direct risk to individuals who keep hidden phones to seek help, plan an escape, or stay connected with loved ones safely.
Local support organisations are urging anyone hiding a device for personal safety to take precautions well before the test begins.
Women’s Health Loddon Mallee advises taking one of the following steps at least one hour before the test on Monday:
- Give the device to a trusted friend or store it in a safe location outside your home before July 27.
- Turn the device completely off or switch it to ‘aeroplane mode’ at least one hour before the test begins, and leave it off for up to 24 hours.
Times of national alert testing in each state
ACT, NSW, VIC, QLD, TAS (AEST) - 2pm
SA, NT (ACST) - 1.30pm
WA (AWST) - 12pm
The national test is part of final trials ahead of AusAlert’s official system rollout in October.
When the alert triggers on Monday, compatible mobile devices will vibrate, sound a 10-second siren-like alarm, and display a visual pop-up reading ‘Critical AusAlert’ with test details.
Because this is a test, you do not need to take any action or contact emergency services whether you receive the alert or not.
Older devices or phones with outdated software may not receive the broadcast.
Specific resources have been made available for all Australians, including people living with disability, older Australians, young people, First Nations people and people from diverse backgrounds.
All this information can be found at www.ausalert.gov.au
If you or someone you know is impacted by domestic, family, or sexual violence, call 1800RESPECT on 1800 737 732 or visit 1800respect.org.au for free, 24/7 confidential support.