The Communications Department says it was not made aware of last month’s deadly Triple-Zero outage for more than a day because Optus sent a mandatory notification email to the wrong address.

In Senate estimates, senior government officials have revealed further details of the telecommunication company’s failure to properly alert them about problems with the emergency network on September 18 that has been linked with three deaths.

During an often-heated hearing, the Communications Department has also been accused of initially giving misleading evidence about the “debacle” that took place after the outage.

Communications Department Deputy Secretary James Chisholm has revealed Optus sent an email at 2.45pm on September 18 when the failure was detected, and another at 2.52pm when it was fix

See Full Page