It positions the book, with its new three-in-one format (including a classified directory, A-Z residential listing and business section) as the directory with all the numbers you could ever need.
Called "the experiment", the ad opens on a man sitting in a bare room wearing shorts and a T-shirt, and with nothing except the BT Phone Book for survival.
Through the course of the ad he uses the book to feed himself, furnish the room, and host a party for himself in just a few days. On day one, he orders a pizza. By day three, has bought a sofa and finally he invites his friends round.
The campaign, which breaks on Sunday, was created by Dave Masterman and Ed Edwards. Scott Vincent was the director through the production company Hungry Man.
The media, which was planned and bought by The Allmond Partnership, will be concentrated around primetime programmes for an initial period of five weeks.