Overview
- The nationwide test on Monday will deliver a full‑screen notification and a 10‑second siren to compatible phones and will override silent and Do Not Disturb settings.
- AusAlert uses cell‑broadcast technology that targets phones by location and relies on multiple towers so alerts can reach users even if part of the mobile network is down or congested.
- Officials say live AusAlert messages will state the type of hazard, where it is, how serious it is, which emergency agency issued it, and where to find more information.
- Domestic violence services have warned that the alert could expose people using hidden phones for safety and have advised those users to switch such devices off or use airplane mode before the test; drivers are also urged not to handle their phones if an alert is received.
- The test will help agencies find technical and equity problems before several state and territory services begin phased adoption from October 2026 and continue to use AusAlert alongside radio, TV and other channels.