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)? Is it possible to program VAT rates "the old way" in cash registers after May 1? How to check if a given network has access to CRK servers? How to configure the device for communication with CRK via GSM modem? Programming VAT rates - what is the binding order of programming VAT rates in cash registers?