Robert Kosberg, the “12 Monkeys” exec producer and renowned pitch artist, has found a new calling: the phone pitch.

Kosberg recently described the original horror story “Devil’s Play-ground” to Dimension production prexy Cary Granat during a five- minute long distance call.

Granat, who rarely buys pitches, rang Kosberg back a half hour later to say that he and Miramax co-chairman Bob Weinstein wanted to take the story rights off the market immediately. Dimension is an offshoot of Miramax.

Kosberg is attached to produce the supernatural thriller set in a high school, which he developed with Arizona-based scribe F. Link Rapier.

Rapier, a freelance ad copywriter and aspiring screenwriter, sent Kos-berg the original idea via post card. The pair then fleshed out the plot together — over the phone, of course.

Dimension and Kosberg are now looking for a writer to pen the script.

Kosberg has rung up 10 pitch sales this year. Others (all delivered in person) include “Culture Clash” at Universal, “The Last Time We Met” at DreamWorks and “Scavengers” at Columbia.

Kosberg described Dimension — which some credit with single-handedly reviving the horror genre with last year’s surprise smash “Scream” — as “the perfect place to make this movie.”

Kosberg, who is based at L.A.’s Constantin Films, where he has a first-look deal, said he’s now considering doing all his future pitches by phone. “I guess I’ll give GTE 10%,” he quipped.

Kosberg and Rapier were repped in the deal by their lawyers at Bloom, Hergott.

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