Telstra says a nationwide outage that prevented some people from calling Triple Zero (000) was preventable and resulted from two errors, according to reports. The outage blocks emergency call attempts, with Telstra acknowledging that 604 calls to Triple Zero were not connected. The company attributes the issue to gaps related to software update and its implementation or documentation, stating that a software update or better process controls could have avoided the problem. Multiple outlets report Telstra’s admission that the incident should not have occurred and characterise the situation as avoidable. Telstra’s explanation centres on how the network systems were managed before the outage, including what software changes were or were not applied and the steps used to manage them. The reports do not indicate that emergency services were directly affected beyond the inability of callers to reach the Triple Zero service. Telstra’s public acknowledgement frames the event as an outcome of preventable operational errors rather than an unavoidable system failure.