If the cash register communicates with CRK via Ethernet or WiFi, is it possible to use the same connection to communicate with the cash register from the computer (sales system)? How to configure the device for communication with CRK via GSM modem? How to configure the device to communicate with CRK via Ethernet? Programming VAT rates - what is the binding order of programming VAT rates in cash registers? How to configure the device for communication with CRK via GSM modem?