‘I am deeply sorry’: Telstra chief apologises again for outage The AustralianTelstra reveals string of errors that led to catastrophic nationwide outage Nine.com.auMistakes that led to Telstra triple-0 outage News.com.auTelstra Senate inquiry LIVE updates: Telco, ACMA to face grilling over Triple Zero outages SMH.com.auLive: Telstra CEO to be grilled over nationwide outage and compensation ABC News & Headlines – Australian Broadcasting Corporation