LONDON - You don't need to know who Jon Briggs is, but you may have heard his voice if you use the iPhone 4S in the United Kingdom.

Born in London and brought up in Oxford, his clear and loud voice is used for the UK version of Apple Siri.

"When I was young, I was the kid in a play that could be heard at the back of the hall," he said, adding that this natural talent encouraged him to move into radio.