Seventeen of the 300 Triple Zero calls that failed during the nationwide outage were from Queensland, as a second issue threatens to derail the telco again.

The widespread outage is affecting mobile calls and data connections, and has even prevented some businesses from processing payments.

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Eftpos terminals have been affected too, with some small businesses switching between payment machines and offering PayID transfers.

Telstra has defended its communication process, insisting the government and other stakeholders were informed "very, very early" in the morning.

Police in several states are checking on people who could not reach Triple Zero, after a second fault overnight again stopped some emergency calls.

Police in several states are checking on people who could not reach Triple Zero, after a second fault overnight again stopped some emergency calls.

The telco says a “secondary issue” is stopping some Triple Zero calls from connecting, hours after it declared the day’s outage resolved.

Some Triple Zero calls are still experiencing issues, Telstra says, as it races to fix a second network issue.

Seventeen of the 300 Triple Zero calls that failed during the nationwide outage were from Queensland, as a second issue threatens to derail the telco again.

More than 20 of the 300 Triple Zero calls that failed during the nationwide outage were from Queensland, with Telstra confirming a second issue had threatened emergency calls…

Telstra says work is ongoing to resolve a "secondary issue" impacting customers trying to make calls on its network, including to Triple Zero, but some people may still be unable…

Carrier says some still unable to connect to emergency hotline a day after mobile network went down

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