Once to a McDonald's in America, it's via Skype, and it's for free, so why not?
Damn, they are hard to prank with, even if I'm serious, they politely deny further talk with me.
On the bus home from a band trip, a bunch of my friends decided to try calling 867-5309 with different area codes and ask for Jenny (which is my name so they thought it was hilarious). Turns out most places have discontinued that number, but they did get someone in Florida somewhere.