CONVICTED drug smuggler Schapelle Corby says she wants people to know how hellish her life is inside an Indonesian prison.

In a tape-recording made in prison for Sydney radio station 2GB, Corby again protested her innocence and said she had held nothing back in her new book, My Story.

Advertisements promoting the book had been banned from Qantas's domestic terminals.

"I've got to get out of here. It is hell. In my story I've held nothing back. I want people to know how hellish my life is," Corby said on the tape.

"I have no privileges, I don't get days out, I have three rotting teeth and I'm not even allowed out to see a dentist."

Corby, 29, is serving a 20-year sentence in Bali's Kerobokan Prison for smuggling 4.1kg of cannabis inside a bodyboard bag in October 2004.

Her book was co-written by former TV producer Kathryn Bonella and is based on a series of secret interviews Bonella with Corby inside the jail.

Schapelle Corby Case Information

AAP