An outage left many Optus customers dealing with phone issues overnight.
Thousands of customers reported significant issues from 7pm to midnight on Monday.
WATCH THE VIDEO ABOVE: Another Optus outage.
Watch the latest news and stream for free on 7plus >>
Almost 70 per cent of these reports concerned mobile phone service issues.
Customers reported being unable to make calls, and were left furious after the website told them to “just turn their phone off and on again”.
Barwon Health, Victoria’s largest regional health service, said it was “experiencing intermittent issues with our landlines and mobile phones due to an Optus outage”.
“(I was) unable to send or receive voice or SMS yesterday (from) 7pm to midnight … in Kingston Tasmania,” another customer said on social media.
“Coles mobile (Optus network) said there was a system-wide outage (no other details) however I can see no reference to the outage this morning.”
Customers on Monday reported issues with their landline and phone internet services nationwide.
Both incidents come just over a month on from one of the largest outages in history.
A 12-hour Optus network event on November 8 left Australian individuals and businesses unable to make calls, access the internet or complete transactions.
In response, the company apologised, and customers — including businesses that lost thousands of dollars in sales — were offered 200GB of extra data, or free data on weekends if they were on prepaid plans, as a “gesture of thanks for their ongoing support and patience”.
Optus has been contacted for comment.