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5/5 Dominic Arkwright meets the mum who gave birth at home with a 999 operator on the line.
3/5 Dominic Arkwright meets the man who took a call from the sister he didn't know existed.
4/5 Dominic Arkwright meets dancer Rose Metcalf who escaped from the sinking Costa Concordia.
2/5 Dominic Arkwright talks to counsellors at Childline about the dramatic calls they receive.
1/5 Dominic Arkwright meets John Gillatt, who was lost in the Malaysian jungle for five days.
5/5 Dominic Arkwright talks to Professor Peter French about the science of forensic acoustics.
4/5 Dominic Arkwright meets a man whose life was transformed by a call to the Samaritans.
3/5 Dominic Arkwright meets a man who's saved his answer phone messages for the last 20 years.
2/5 Dominic Arkwright meets a man who took a distress call from a ship called Titanic.
1/5 Dominic Arkwright meets a woman who survived when Concorde crashed into her Paris hotel.