isi:Terminal allows traders to validate and accept isi:Cado vouchers and coupons more quickly and easily. To do this a corresponding QR code is scanned directly from the display of the customer's mobile phone or from a paper/card printed voucher. The voucher / coupon, etc. is thus automatically redeemed, the voucher amount (minus an optional disagios agreed with the retailer) is automatically credited to the accepting retailer's account.