The deadly Optus outage spread as far as NSW, the telco’s CEO confirmed on Sunday, with at least four deaths linked to the system upgrade. South Australia Police address tragedySouth Australia Police earlier revealed it was “unlikely” the Optus outage — that blocked hundreds of calls to triple-0 — had contributed to the death of an eight-week-old baby. “When her call was not connected, she immediately used another mobile telephone in the house and was successfully connected to triple zero,” police said. Optus chief executive Stephen Rue said the company was unaware of the outage for triple zero calls for a full hour. With Australia on the verge of bushfire season, the federal coalition is calling for a broader independent investigation into the triple zero network.