BRITAIN's most prolific telephone sex pest has been jailed for more than three years.

Badredean Barbar of Salisbury Street, Lisson Grove, made nearly 5,000 nuisance phone calls to female victims across the country during a three-month campaign, from March to June last year.

The unemployed 26-year-old began harassing the women just days after being released from prison for committing exactly the same offence.

During the latest campaign, he targeted some of the same women he bombarded with calls during the first sustained bout of calls, which he carried out between November 2006 and August 2007.

Barbar was found guilty at Southwark Crown Court on Friday (June 5) of one charge of public nuisance .

He was sentenced to 40 months in prison, where he will have to receive sex therapy.

Barbar was also given a ten-year Asbo, with a range of conditions including not using a phone which is not registered to him and not making unsolicited approached to women.

Between March and June 2008, Barbar made 4,431 calls from his mobile phone, the vast majority of which are believed to have been malicious.

Eleven victims who were traced by police said they had each received hundreds of calls from him.

He often targeted women he had met including staff working in the offices of public services.

But he also made hundreds of calls to seemingly random locations across the country, particularly favouring car showrooms.

He would ask questions about what the women were wearing and was often heard performing sex acts upon himself while on the line.

Barbar's phone was never found but the calls were linked to him through phone data.

Police arrested him at his Lisson Grove home and charged.

His previous conviction for public nuisance, to which he pleaded guilty, involved 45 known victims.

He visited offices to find women, and then would later phone the company receptionist often asking for them by name and describing their appearance.

He received a 12-month prison sentence for this offence on September 14, 2007.

Temporary Detective Constable Linda Rothera, who led the latest investigation, said: "This sentencing is the result of a year-long investigation into a man whose actions have seriously upset and disturbed a large number of women in their workplaces.

"Barbar has a long history of this type of offending and I hope he will now receive the treatment he needs to correct his behaviour."