What do you mean by blacking out your mobile phone?

After the phone is blacked out, the other party will call, indicating that the phone has been turned off, the phone has stopped and the call is in progress.

If you are prompted that the subscriber you dialed is busy, please dial again later, indicating that the other party has set the incoming call to hang up automatically. However, it is not excluded that it is really an incoming call. Call back after a while or prompt that the incoming call has been blacked out.

In addition to talking, it may also prompt "power off", "out of service area" and "empty number", which can be set in case of power failure. If you want to judge whether someone is hacking, you can use a public phone or dial a foreign phone number. If you can dial normally, then you are really hacked.

The principle of blackening

When making a phone call, the text message will first pass through the network operator and then reach the other party's mobile phone. When the other party hacked your number, the network operator will intercept the short message you sent and prevent it from reaching the other party's mobile phone, thus achieving the purpose of hacking. If the mobile phone number is hacked by the other party, not only can the phone be dialed, but even the short message cannot be sent successfully, because the short message will also be intercepted by the operator.