Senior Telstra executives are expected to front a senate inquiry today over last week's nationwide outage.

Telstra prepares for a grilling in parliament about the recent network outage that disrupted Australia, with the communications regulator also set to face tough questions.

Senior Telstra executives are expected to front a senate inquiry today over last week's nationwide outage.

In a submission lodged hours before Friday’s Senate hearing, Telstra says a software update was never applied to the device that triggered the outage.

Follow our live coverage of the Senate inquiry into last week’s Telstra outage.

Follow our live coverage of the Senate inquiry into last week’s Telstra outage.