Telstra's bosses have admitted a network outage affecting vital services, including Triple Zero, could have been avoided.

Telco outlines reasons for network failure that hit mobiles, trains and retailers ahead of appearance at Senate inquiry

Telstra says the outage that stopped 604 calls from accessing triple-0 services could have been avoided, blaming the lack of a software update on their timekeeping system and an…

Telstra's bosses have admitted a network outage affecting vital services, including Triple Zero, could have been avoided.