An MDB is the relationship engineering which allows your vending machine to communicate with cashless payment units applying vending machine controllers. No. Each and every Nayax we offer connects by way of mobile networks and each unit has its very own sim card. Should you have very poor Verizon https://buy-cohiba-behike-5279023.is-blog.com/40297596/5-tips-about-snack-vending-machine-with-nayax-credit-card-reader-you-can-use-today