If you decide to start your wholesale voip call termination business, you probably already know about the SIM-block. Since the terminator "takes" the potential profits from monopoly operators, the latter put a lot of effort into identifying this type of activity. With the help of special anti-fraud systems, cellular companies monitor the activity of subscribers, and if something causes suspicion, they immediately block numbers. Many newcomers in this area ask the question: what is the average lifespan of one SIM-card for termination?
The SIM-card can be blocked almost instantly either after it is activated or in a few months. Everything depends on the country, on the features of the anti-fraud systems of the operator and on how plausible you are simulating the behavior of a real person. In some regions, the cards are not blocked at all or blocked rarely, with originators paying very little (for 1-3 cents per minute) for terminating traffic in such directions.
To prevent SIM-block in these countries, small precautions are enough: do not use the SIM-card immediately after activation and do not use it for calls around the clock as, after all, a person cannot speak so much on the phone. At the same time, in countries with high rates (15-20 cents), antifraud systems operate very rigidly and quickly block numbers when termination is detected.
We also need to understand that the larger the GSM operator is, the more sophisticated the AntiFraud system that it uses are. This is due to the fact that the more traffic it provides, the more profits it loses due to the activity of terminators. Therefore, large cellular companies invest large amounts in the development of analytical and callback anti-fraud systems as their expenses are quickly paid off.
In such cases, we recommend using the tools completely simulate the real subscriber behavior that GoAntiFraud offers. They are the generation of incoming traffic, sending SMS and USSD-requests, setting automatic pauses between calls, and limits for the number of minutes per day. To operate a large number of SIM-cards, you will need a SIM-bank. Using it, you can virtually load and unload cards from different channels of a GoIP 1 VoIP GSM gateway, imitating the movement around the city.
