Overview
- Telstra's mobile network collapsed on Wednesday morning, leaving more than 600 Triple Zero calls unconnected and disrupting transport, card payments and services for millions of customers.
- The company says a time‑synchronisation software fault reset a GPS timer and caused nodes across the network to report the wrong time, which broke key mobile functions.
- Company insiders say the failure likely began with an ageing SyncServer S300 timing device that had passed its supported life and could have been replaced for under about US$15,000–US$22,000.
- Telstra has opened an internal review and will appear before a Senate inquiry while ACMA and the Triple Zero Custodian launch formal probes that could lead to civil fines of up to $30 million for Triple Zero failures.
- Experts warn the outage highlights a wider vulnerability in reliance on precise timing, exposes gaps in critical‑infrastructure rules, and will intensify scrutiny of Telstra's lifecycle management, governance and customer compensation plans.