Devices and methods for monitoring transaction data from point-of-sale devices

摘要: Systems and methods for monitoring transaction data in a point-of-sale (POS) system. An inline component is connected between POS terminal printer. The monitors communications the printer as well sent to or from other devices with terminal. As are monitored, portions of extracted remote processing server. returns information which could comprise variety information, such as: fraud deterrent data, store promotions, customer messages, like component. sends this presentation user. typically without interfering being performed by Commands included can be implemented