Earlier quoted context omitted.
So the merchant has to buy/rent a device. I expected it to be phone-to-phone for such wide acceptance.
from my research, here is what I've found: 1- The govt insists the payments be done on their national backbone, which works on 0 markup, so companies have to find different avenues for revenue 2- The device is essentially a mobile phone with no display(newest version has a small pocket-calculator sized lcd, but most do not) and just four buttons: power, volume up, volume down, and repeat last message. It takes a SIM…
Ask Thailand and their QR-code based payments, TrueMoney and "Thai QR", because that's exactly how they work. Maybe scammers are less prevalent in Thailand than in India so they go by trust, even in 7-Elevens.