Any POS terminal should be able to work with power only. There’s probably a dusty manual somewhere telling you how to configure it for the store to enable it and allow the cashier to type in an amount owing and then hand to the customer and queue payments for upload when network connectivity comes back.
Might lose some payments to overdrafts or cancelled cards. But they lived with that with credit cards up until 2000ish.
Buy-on-board on Aircraft and trains take advantage of this.
Offline payments is baked into EMV payments. It can at least verify the PIN and that the card was valid at its last phone-home.
Might lose some payments to overdrafts or cancelled cards. But they lived with that with credit cards up until 2000ish.
Buy-on-board on Aircraft and trains take advantage of this.
Offline payments is baked into EMV payments. It can at least verify the PIN and that the card was valid at its last phone-home.
https://www.google.com/search?q=mastercard+emv+offline+payme...