A remote ordering system including a universal in-store point-of-sale (POS) system deployed to allow a remote-ordering user to customize, pay and transmit a food order to a vending merchant and to provide means for transmitting to the user a confirmation of receipt of the food order in real time together with a merchant commitment to a precise pickup time, thereby facilitating food order fulfillment immediately upon user arrival at the committed pickup time. One aspect of the invention allows a "curb-side" remotely-ordering user to notify the vending restaurant of arrival for fulfillment through a telephone call to an interactive voice response element, which then transmits an arrival notification message to the restaurant.