The telecommunications company has confirmed multiple emergency calls have been cut short, disconnected or interrupted after a Telstra cable was cut this morning.
In a tweet Telstra said a cable in New South Wales was cut by an "unknown source" just after 2am this morning.
It's understood this is the cause of many service interruptions, with the New South Wales Police Force confirming many triple-0 calls being disconnected or not being put through at all.
Telstra also said emergency calls in Western Australia and Victoria were impacted by the cable cut, despite a crew repairing the fault two hours after it was reported.
St John Ambulance WA General Manager Phil Martin said the nation-wide issue was affecting St John, and urged people to keep dialling triple-0 if they're unsuccessful the first time.
There is a nation wide issue with 000 calls at the moment which is effecting @stjohn_wa . Please try again if you can’t get through to 000 the first time. @ESTA000 are working on the issue now https://t.co/VN9jnY2XIv— Phil Martin (@Phil_Martin_SJA) May 3, 2018
Queensland Police said they were still receiving emergency calls, but the New South Wales force people should contact authorities on 131 444 as triple-0 calls were still interrupted.
Western Australian Police have not said if they're having issues receiving emergency calls.
Due to intermittent issues with calls to Triple Zero our advice is first call Triple Zero (000), but if you can’t get thru call the Police Assistance Line 131 444 for ALL emergency services in NSW. You can also find your local police station via this link https://t.co/Ri8PL0Yvo9— NSW Police (@nswpolice) May 3, 2018