Telstra’s nationwide outage caused chaos in Victoria on Wednesday, with dozens of Triple Zero calls dropped and thousands of commuters stranded.

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

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

A crippling statewide cancellation of Victoria's regional trains, linked to a Telstra outage, is set to continue disrupting services into Thursday morning.

A widespread Telstra outage has disrupted mobile and data connections across the network, halting local business payments and completely stalling V-Line train services throughout…

Mobile and internet services are affected as the telco says it is "looking into" the problem.

Trains in Victoria and NSW were brought to a standstill as thousands reported issues with their Telstra network on Wednesday morning.

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

Telstra said about 90 per cent of calls were restored by 10am Wednesday. But phones weren’t the only technology impacted.

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

These outages have exhausted public patience, and promised fixes aren’t being felt yet.

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

V/Line services have been thrown into chaos after a major Telstra outage affected signalling.

Telstra’s nationwide outage caused chaos in Victoria on Wednesday, with dozens of Triple Zero calls dropped and thousands of commuters stranded.

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

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.

V/Line has advised commuters not to use its services, as a telecommunications outage continues to cause safety issues with the network.

Dozens of V/Line services remain halted as the impacts of Wednesday’s nationwide Telstra outage continue.

Travellers are counting the cost in time and fuel as V/Line trains remain at a standstill, more than 24 hours after the nationwide Telstra outage began.

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