According to The Age, radio host Mel Greig in July filed a claim against Southern Cross Austereo with Fair Work Australia, accusing her employer of failing to maintain a safe workplace.
The claim followed a media storm over a prank phone call that linked Greig and another DJ to the death of a British woman.
In December last year, Greig and colleague Michael Christian made a prank call to London's King Edward VII Hospital, where the Duchess of Cambridge was being treated for severe morning sickness.
In the call, Grieg pretended to be the Queen and Christian posed as Prince Charles.
They rang the hospital and were put through to the Duchess' ward by nurse Jacintha Saldanha, who later took her own life after the hoax was widely publicised in the British media.
In a statement released on Wednesday night, Southern Cross Austereo said the dispute arising from the royal hoax had been "amicably resolved" and Greig had resigned, effective from December 31.