Call Splashing
Call splashing is the practice of charging a payphone customer's call from the operator's call center instead of the originating payphone.

What is Call Splashing?

"When you place a call from a public phone (a payphone, hotel, or airport phone, for example), your call may be routed to a distant call center before being “handed off” to your chosen long distance carrier. Your preferred long distance carrier might then, either unintentionally or intentionally, bill you as if your call originated from the distant call center, rather than from your actual location. As a result, you may be charged higher long distance rates for the call than what you expected. This is called “call splashing,” and it may be in violation of Federal Communications Commission (FCC) rules.

Is Call Splashing Legal?

A carrier is permitted to base charges on an artificial point of origination if the caller:

1. requests to be transferred to a different carrier’s operator; or
2. is informed (before incurring any charges) that the call may be billed as if it originated somewhere other than where the caller is calling from and he/she consents to the transfer.

Avoid Being “Splashed”

To help avoid call splashing, listen carefully to the telephone operator and don’t consent to any call transfers unless you understand what the operator is asking. Carefully read your phone bill to ensure the origination and destination locations of your long distance phone calls are correct. If your phone call has been billed without your consent as if the call originated from a distant call center, and the rate is higher than you anticipated, complain to your preferred long distance carrier so you can receive the correct billing rate. You can also file an informal complaint with the FCC."
(Copied from www.fcc.gov/cgb/consumerfacts/callsplashing.html)