What happened

A second Telstra voice-network incident in May disrupted calls for approximately two hours and formed part of the official investigation into the 4 and 26 May Triple Zero service disruptions. The public summary does not provide a separate failed-call total for this date; it should not be conflated with the 1,433 attempted calls associated with the earlier event.

When cited sources give different casualty, damage or spill figures for this event, they’re reported side by side above rather than merged into one number. See how confidence levels work.