The streets of Bogota are lined with these walking telephone booths called “Minutos”. It’s a simple operation consisting of a resourceful entrepreneur connected to a plethora of basic cellular phones via chains or rope. People just walk up, grab a phone and have a chat. Once the call is finished the operator reels the phone back in as the customer pays for usage and then takes off. Simple, great operation.
This seems like the perfect option if you don’t want to be tracked, but doesn’t seem like the best for a private conversation.