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Optus ... Singtel Optus Pty Limited is a major Australian telecommunications company headquartered in Macquarie Park, Sydney. Optus is the second-largest telecommunications …

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With over 30 years of industry experience, Optus is a technology advisory and IT services firm designed to advance today’s hybrid workplace. We provide a vendor-neutral approach to …

Dec 18, 2025 · An inquiry into Optus's emergency services telephone number outage in Australia, which resulted in two deaths, revealed a series of failures during a firewall upgrade that left …

Dec 18, 2025 · Optus has released a much-anticipated review into September's network failure that left hundreds of people unable to reach Triple Zero (000) and was linked to two deaths.