Tech expert Trevor Long discusses Telstra's major network outage affecting customers this morning.

The telco believes a software defect is behind the outage

Tech expert Trevor Long discusses Telstra's major network outage affecting customers this morning.

Carrier restoring mobile services after network used by millions goes down for many users, shutting down regional trains and affecting emergency calls

Telstra is working rapidly to bring its mobile network back online, after hundreds of thousands of customers were caught up in a nationwide outage.

Telstra is investigating what caused a national outage that stopped trains, transactions and some Triple Zero calls.

The Telstra outage has seen the iconic Ghan ground to a halt.

Telstra remains under fire after callers were again unable to contact Triple Zero once again.