Optus Emergency Call Lawsuit
ACMA Sues Optus Over 2025 Outage, Alleging 1,005 Emergency Call Breaches
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Key Points
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Penalties in the ACMA case can be substantial, with a maximum of AUD 250,000 per contravention, and the Federal Court will determine penalties based on multiple factors rather than a simple per-breach calculation.
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Optus-commissioned review by Kerry Schott found the outage lasted about 14 hours and involved 605 Triple Zero calls being attempted, with a large proportion failing.
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The outage's geographic impact extended across New South Wales, South Australia, Western Australia and the Northern Territory.
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ACMA flagged that more than 600 Triple Zero calls failed to connect during the outage, underscoring a broader public-safety failure.
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Market context suggests potential regulatory and financial uncertainty for Singtel Optus as the case unfolds; analysts note the case could influence stock sentiment, with the latest available rating on Singtel appearing as Buy.
Australia's communications regulator has sued Optus over a September 2025 network outage that knocked out emergency calls across four states and territories. The Australian Communications and Media Authority (ACMA) filed Federal Court proceedings alleging 1,005 breaches of emergency-call obligations, according to ABC News and 7News.
The 14-hour outage left more than 600 Triple Zero calls unable to connect, Region Media reported. ACMA says the failures contributed to deaths and hundreds of failed connections — a repeat of failures that already cost Optus more than A$12 million in penalties after a similar 2023 outage.
1,005 Alleged Breaches Across Four Regions
ACMA claims Optus Mobile broke two core rules during the outage. First, it failed to give customers access to the emergency-call service. Second, it failed to route those calls to the correct destination. The regulator counted 1,005 separate contraventions across the incident, according to AU Head Topics.
The outage hit New South Wales, South Australia, Western Australia, and the Northern Territory. A review commissioned by Optus and led by Kerry Schott found 605 Triple Zero calls were attempted during the blackout, with a large share failing to connect. ACMA says that scale of failure is unacceptable for a network of Optus's size.
Deadly Consequences Drove Regulator to Court
ACMA did not file this case lightly. The regulator says the failed emergency calls contributed to deaths, though it has not disclosed exact figures tied directly to the outage. Access to Triple Zero is described as a "fundamental obligation" for any telco operating in Australia, according to ABC News.
The September 2025 outage came just two years after a November 2023 Optus blackout that affected 10 million customers and also knocked out emergency services. That earlier case ended with Singtel Optus subsidiaries paying A$12 million in penalties. ACMA's move to court this time signals it wants stronger accountability, not just fines settled out of court.
Optus Faces Up to A$250,000 Per Breach
Each contravention carries a maximum penalty of A$250,000. With 1,005 alleged breaches, the theoretical ceiling runs into the hundreds of millions. In practice, the Federal Court sets penalties based on multiple factors — not a simple per-breach multiplication — but the exposure is significant, according to TipRanks.
Optus said it is reviewing the pleadings and declined to comment further while proceedings are active. Its parent company, Singtel, carries a Buy rating from analysts, but TipRanks noted the case could weigh on stock sentiment as it works through the courts.
Regulators Signal Zero Tolerance for Emergency-Call Failures
ACMA's back-to-back enforcement actions against Optus mark a clear shift in how Australia regulates telco safety. The 2023 case produced a financial penalty. The 2025 case goes directly to Federal Court — skipping any informal settlement phase. That approach puts more pressure on Optus to fix its network, not just write a check.
The regulator has made clear that no network disruption excuses a failure to carry emergency calls. Region Media reported ACMA's position that Australians must be able to reach Triple Zero at all times, regardless of broader outage conditions. The case is now before the Federal Court, with no trial date yet set.
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