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Australia's Optus September Outage Review Flags Urgent Protocol Gaps

The review found 21 failures causing 75% of emergency calls to fail during the outage and urged urgent implementation of reforms to address accountability and risk management.

  • At its Dec 16 meeting, the Optus board accepted all 21 recommendations from an independent review that found gaps in process, accountability, escalation and information protocols.
  • A routine upgrade at the Regency Park exchange deviated from procedures as Optus engineers sent incorrect instructions and Nokia used an outdated 2022 procedure omitting traffic diversion; the task was misclassified as 'no impact' and 'urgent'.
  • The outage lasted almost 14 hours during which 75 per cent of 605 triple zero attempts failed, and Optus' call centre failed to escalate warnings from five callers reporting failures.
  • Optus chairman John Arthur said the board will pursue individual accountabilities from financial penalties to terminations, while the Schott review found widespread failures amid ongoing ACMA and Senate inquiry investigations.
  • The report also questioned the Triple Zero system's performance, found risk management materially deficient across three lines of defence, and added to prior penalties including a $12 million fine and $100 million order.
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PerthNow broke the news in City of Perth, Australia on Thursday, December 18, 2025.
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