What risk of answering a call with the code +221

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Anonymous user -  
yaudot Posted messages 4 Status Membre -
Hello,
I live in France and I received an incoming call with the country code +221. I answered the call, but the person on the other end said nothing, just breathing; the communication lasted 14 seconds.
After searching online to find out what the code was, which is from Senegal, I'm worried that there might be something shady about this call, especially with everything we hear.
I would like to know if there is a risk that my subscription could be fraudulently used via this call. Thank you for your response.

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yaudot Posted messages 4 Status Membre 61
 
In France, the person who calls pays! Therefore, receiving a call from another country while you are in France costs nothing.

However, the use of numbers with the country code 221 from Senegal exploits a peculiarity of smartphones (especially the iPhone) that causes any missed call to be automatically redialed if the glass face of the device is pressed.

As a result, a device worn on the belt, in a case, will automatically redial a number that originated from a missed call at the slightest pressure. This is why initial calls do not go through after the first ring, as they are interrupted by the calling software.
Therefore, any accidental contact with the front of the iPhone will initiate a redial, of course accidentally and unintentionally, to the scammer’s number, a call that could last indefinitely since it is interrupted neither by the scammer (the number is likely premium-rate), nor by the owner of the device, who will only discover the existence of the call by picking up their iPhone (perhaps a few hours later).

For this kind of "problem" (SMS, advertising call, "brief" call), forward it by SMS (for free) to 33700 (a government service set up several years ago) which is supposed to stop these messages. The perpetrators are forced to change their number to continue.
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