Telstra has blamed the lack of a software update on a key time-keeping system for an outage that caused nationwide chaos last week, with its maintenance teams also unaware of a design change that affected how it would reset.
Telstra’s chief executive, Vicki Brady, told a Senate inquiry into the mobile outage on Friday that 45% of all calls and data sessions last Wednesday were affected when the network went down shortly before 4.30am AEST.
