The 2Day FM presenters said on their show it was the "easiest prank call ever made", as they put on mock British accents they later described as "terrible".
Hospital chief executive John Lofthouse condemned the call on Tuesday and said there was no chance the Duchess could have received the call
I think this whole thing is pretty deplorable, our nurses are caring, professional people trained to look after patients, not to cope with journalistic trickery of this sort.
Technically I think this was a breach of patient confidentiality, which I very much regret. Having said that, the information which was inadvertently revealed is already in the public domain.
The 2Day FM presenters, Mel Greig and Michael Christian, later apologised for their actions as did their radio station.
The station was expected to issue a statement about the death later today.
Jacintha Saldanha's colleagues discovered her hanged in her room in the King Edward VII's Hospital nursing quarters, her inquest has heard.
Read the full interview prank DJs Mel Greig and Michael Christian gave to an Australian network following nurse Jacintha Saldanha's death.