Hannah was found strangled after a night out with friends
A 17-year-old girl who was raped and murdered dialled 999 as she was being abducted by her killer, a court heard.
Hannah Foster made the call in the hope the operator would hear the conversation with Maninder Pal Singh Kohli, Winchester Crown Court was told.
Jurors also heard evidence that Hannah's blood was found in a van used by 40-year-old Mr Kohli.
Hannah disappeared in Southampton in 2003. Mr Kohli, who was extradited from India, denies her murder.
He also denies charges of rape, kidnap and false imprisonment.
Nicholas Haggan QC, prosecuting, said the operator who took the call could not understand what was being said and there was a system to prevent accidental calls that disconnected Hannah's call after a short time.
But Mr Haggan said it was the Crown's case that Mr Kohli was the man who speaking in a "heavily-accented voice" during the call.
Hannah was found strangled on 16 March 2003 in Allington Lane in the city two days after she went missing following a night out with friends.
"It was obvious the motive of Hannah's abduction was sexual and she had been raped and murdered," Mr Haggan told the court.
Two days after Hannah's body was found, Mr Kohli took a flight to India, the jury heard.
It was Mr Kohli's boss at the sandwich delivery business who called police following a BBC Crimewatch appeal.
Maninder Pal Singh Kohli caught a flight to India days after Hannah died
Mr Haggan said the "pieces of the jigsaw soon went into place".
Mr Kohli's delivery van was seized and semen stains and Hannah's blood were discovered inside, he said.
Mr Haggan said: "He snatched her from the street, he drove off with her in his van, he found somewhere quiet, he raped her, he then strangled her and he dumped her body in Allington Lane.
"The following day, he dumped her handbag and purse in Southsea.
"When he thought he might get caught, he fled to India."
When Mr Kohli was extradited to the UK last year a DNA sample from him was matched to semen found at the crime scene.
The court heard there was only a one in a billion chance of the DNA not belonging to him.
The trial continues.