A South Australian woman said she tried to desperately call triple zero six times after her husband collapsed suddenly during the Optus outage.

Optus customer Simone Porcaro's husband Dave slipped into unconsciousness after suffering a cellulitis infection.

The father-of-two could have gone into septic shock if it wasn't for their young daughter's quick thinking.

Simone is a Optus customer – but Dave is not.

"I just kept trying to dial, just freaking out, what were we going to do?" Simone told 9News.

"It was my seven-year-old daughter that had actually suggested using dad's phone, so we found it underneath him because he was collapsed."

Simone and her family are just some of the many Australians who were impacted by the Optus outage on Thursday.

A 68-year-old Adelaide woman di

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