One of the main parameters of human behavior, which Antifraud systems monitor, is incoming calls to SIM-cards: namely, the percentage ratio of incoming calls to outgoing calls. GoAntiFraud can help you simulate the behavior of a person for a given parameter. All you need to do is go to the "Tariff Options" menu and set the desired percentage of incoming calls and their duration, as well as set the numbers of your SIM-cards in the panel. The system will make calls from one card to another in accordance with the pattern that you specify.
This feature is one of the main features to human behavior in the GSM network.