John Abraham never had to work as hard as he did to get it right for his forthcoming film "1: 800 Love". A large part of the drama unfolds through telephone conversations and it was a litmus test for the actor to emote on phone, says director Abbas Tyrewala.

"It's a challenge for the most seasoned of actors. A lot of the relationship between John and Pakhi (John's co-star and also the director's wife) unfolds on the telephone. It was tough," Tyrewala said.

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