A report in Fairfax Media said hundreds in Victoria, New South Wales, Queensland and the ACT were affected by the outage. The website Aussie Outages showed that services were also hit in Western Australia.
On 25 June, Optus was hit by an outage to its mobile and broadband services, an outage that the company said at the time was a brief one.
Prior to that, the company earned the hashtag #Floptus on Twitter when its streaming of World Cup matches did not quite work out. It had obtained the deal by paying a pretty penny to public broadcaster SBS.
Also I gotta quit Optus. How is terrible service in inner Brisbane still a thing?— Nicole Jensen (@nicolejensen) September 21, 2018
On its Yes Crowd forum, moderator Dan C posted at 11.22am on Friday: "We have identified a fault which means that some customers may be experiencing issues with calls.
"There’s no need to troubleshoot at your end. We’re sorry for the inconvenience and we will update you here on our progress as we work on a fix."
The forum posts the last message by an individual in a thread first. In the last message from Dan C, posted at 3.58pm AEST Friday, he wrote: "Hey guys, this one should now be resolved. For those still experiencing issues, please send us a private message."
Contacted for comment, an Optus spokesperson said in a statement on Saturday night: "Some Optus customers this (Friday) morning may have been experiencing intermittent disruptions to their mobile services. We have been progressively restoring services since 10am (on Friday).
"We apologise to our customers for any inconvenience experienced and appreciate their patience while services are being restored."