AusAlert national test reaches 94% of towers despite device gaps
The $132 million cell-broadcast system passed its first nationwide trial, but older phones and landlines remain outside its reach.
The Australian Government's new AusAlert emergency warning system broadcast test messages to 94% of targeted cell towers nationwide on Monday, July 27, 2026. Emergency Management Minister Kristy McBain declared the 2pm AEST trial a success.
The $132 million system, developed since 2020 following the Royal Commission into National Natural Disaster Arrangements, uses Cell Broadcast technology to deliver messages and audible alerts to compatible devices regardless of silent or do-not-disturb settings.
However, the rollout exposes significant coverage gaps. AusAlert cannot reach landline users due to lacking automated voice message capability, requiring it to operate alongside the existing Emergency Alert system. Device compatibility is limited to iPhone 11 and later running iOS 26.4 or later, and Android devices running Android 12 or later.
"There are a range of devices that AusAlert may not go to at this stage [and] we continue to work with both telco providers and device manufacturers to provide advice directly to customers," McBain said.
The Queensland Fire Department will not join AusAlert until April 2027, after peak bushfire season, according to Information Age. This delay leaves one of Australia's most disaster-prone states relying on legacy systems through the coming fire season.
Domestic violence advocates have raised safety concerns about the system's unavoidable alerts, warning that loud broadcasts could expose hidden "safe phones" used by survivors to seek help without detection.
Cybersecurity experts also flag systemic risks. "Emergency warning systems sit at the unique intersection of critical infrastructure, government capability and the public trust... and any system of national significance, can and will be a target for cybercriminals seeking to cause disruption," said Jason Pearce, APJ field CTO with security firm Claroty.
Unlike SMS-based alerts, Cell Broadcast allows authorities to target specific geographic areas instantly without requiring individual phone numbers. But the technology's effectiveness depends on universal device compatibility—a threshold AusAlert has not yet met.
The government's acknowledgment of excluded devices, combined with the Queensland delay and landline limitations, suggests the system remains incomplete despite the successful tower broadcast rate. For emergency management, reaching 94% of towers matters less than reaching 94% of people at risk.