One of two Australian Djs who made a prank call to the hospital treating Catherine, Duchess of Cambridge last year (12) has returned to radio.

Michael Christian and Mel Greig, of Sydney station 2Day Fm, were suspended in December (12) after the nurse who took the call, Jacintha Saldanha, was found dead three days later in a suspected suicide, prompting a probe into the incident.

British authorities dropped the criminal investigation earlier this month (Feb13) and Christian is now back on the air on 2Day Fm's sister station Fox Fm in Melbourne.

Radio boss Rhys Holleran says, "We have always supported our talent returning to work when appropriate and today marks that occasion for Mc