Why would these multinationals pick such faraway countries for their international smut trading? Two reasons. The first was that these small islands don't have the same stuffy regulations as big mainland countries, allowing phone sex lines to be unblockable, omit names from any bills, and cater to the most unsavory requests without fear of censorship. The second? Being at the ass-end of the world was a source of millions in revenue.
International phone calls are expensive, and international phone calls that reroute all the way around the world and back again are ridiculously expensive. So phone sex companies would string calls through Niue and its neighbors to wherever their husky-voiced women were, and horny callers didn't realize what was up until they were hit with massive unexpected bills for thousands of dollars. None of this was overtly illegal, either, because all the advertisements technically said something about how "international rates apply" -- they just didn't mention that the nation in question could only be reached via seaplane.
This scheme was so successful that in 1996, Niue was the second-biggest provider of phone sex services in the world. But in 2001, the FCC changed its regulations to prevent these exploits, and by the time internet porn became huge, the phone sex industry had shrank significantly, leaving Niue to fall on hard times.
New Zealand Mint