How do you handle price phone surfing phone calls?

Any ideas on how to book when the phone rings and the client is price surfing? Done all the Charles Lewis techniques and they don't really work. Phone surfing on price alone is killing bookings in the digital world compared to the days of good ole film where the client wanted to meet you and view your work before discussing pricing. Not complaining as I'm winding down on Weddings for 2010 but the BS that is involved with the price only phone calls are a nuisance and annoying.