Anonymous Payment by Phone
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Here is an idea for an anonymous payment system that would be useful for some applications.
- The seller sets up a phone number that charges N dollars per minute to any caller.
- The customer chooses a code, calls that number (which requires paying N dollars), and enters the code. A voice-generation system speaks the code back so the customer can confirm it.
- That code represents a payment of N dollars. The customer enters it in a web site, or a kiosk, and it constitutes payment for whatever.
It should be possible to do this using a phone card on a payphone or anyone else's telephone.