A British man has admitted to making a sick prank-call while drunk, in which he told a teenage boy's father his son was dead.

29-year-old Aaron Davie was caught on CCTV with a beer can and his mobile phone in hand, howling with laughter shortly after making the prank call at Aston train station in Birmingham in December.

Davie told Birmingham Magistrates’ Court he let a 15-year-old boy borrow his phone to call his father to come pick him up, after a night of bowling with his friends.

When the boy gave Davie the phone back, he hit redial as the teen walked away.

"Have you just been speaking to your son?," Davie asked the boy’s father. When he replied that he had, Davie told the father: "He's just been killed".

The teenager's parents panicked upon hearing the chilling news, and immediately rushed to the train station.

"It chilled me," the 50-year-old father told British newspaper The Sun, outside court.

"I nearly sunk to the floor … it was the worst 40 minutes of my life."

The trainee accountant claimed he had been drinking at a soccer game and wouldn't have made the call if he was sober.

"This defendant is utterly ashamed of himself," a lawyer for Davie, who has pleaded guilty, said in court.

The teenager involved in the prank, said he was shocked by Davie's sick actions.

"I thought he must have been a decent bloke to lend his phone," he said.

"I was surprised and angry at him for being such an idiot."

Davie was remanded on bail and will be sentenced on March 13.

credited to livenews.com.au