What are the reasons why a mobile phone has an empty number?

The reasons why the mobile phone number is empty: 1. The mobile phone number is blacklisted by the other party; 2. The other party has set up the call transfer function, and the transferred number is an unconventional mobile phone number range, such as randomly pressing 11 digits Number; 3. Wrong number; 4. Virtual number; 5. The number has been canceled and is in the recovery freezing period; 6. The operator's system failure will cause the user's mobile phone to have an empty number in a regional and wide range; 7. Signal Not good; 8. The number format is wrong; 9. The mobile phone card is faulty; 10. Special ring tone.

#The operating environment of this tutorial: HarmonyOS 2 system, HONOR V30.

When many users use their mobile phones to make calls, they will be prompted that the dialed number is empty, but they don’t know the reason. Here are some reasons.

1. Blacklist

When your number is blacklisted by the other party, sometimes it will prompt that it is an empty number when dialing. Unless the other party removes the blacklist, it cannot be restored.

2. Call transfer

The other party has set up the call transfer function. The transferred number is an unconventional mobile phone number range, such as starting with 102 or 103. The other party can press 11 digits at will to dial the number. The call will be transferred to the number range and an empty number will be displayed. After the other party turns off call transfer, the call can be connected normally.

3. Wrong number

Domestic mobile phone number segments have strict restrictions. Based on different communication operators, the number segments they have are also different. If the number segment entered by the user when dialing is wrong, Then this will also happen.

4. Virtual number

If the number dialed by the user is a virtual number, there will also be an empty number, although the virtual number is also a part of the mobile phone number. However, many virtual numbers can only be dialed out and do not support access. When dialing, it will prompt an empty number and cannot be solved.

5. The number has been cancelled

If the number dialed by the user has been cancelled, and before there is no other user applying for registration, the call will always prompt an empty number, which means that the other party has changed their number.

6. System failure

This kind of situation is relatively rare. It is caused by the communication operator's system upgrade or maintenance. The communication system cannot recognize the user's registration information, and there will be a situation where the dial prompts an empty number. , it will return to normal after the system maintenance is completed.

7. Poor signal

When the signal is poor, this type of prompt will also appear when the user dials. The signal relies on the mobile phone to communicate with nearby base stations. If the user is moving at high speed or is blocked In areas with many objects and interference sources, this situation may occasionally occur when dialing.

8. The number format is wrong

The mobile phone number used in China is 11 digits, but the phone number and foreign phone number are not 11 digits. Domestic calls need to add the area code, while foreign calls also need Add the country identification code. If the number dialed by the user is in the wrong format, such a prompt will also appear.

9. Mobile phone card failure

According to the feedback of some users, if the SIM card of the mobile phone is severely worn, there will be poor contact with the mobile phone card slot. Call It will also prompt that the number is empty, and it can be restored by changing the mobile phone card.

10. CRBT

This is the most nonsensical reason. Some users like to play pranks and set "The number you are dialing is an empty number" as a CRBT. When other users dial, it will If such a prompt appears, it will always exist unless the other party turns off the ring tone.

Conclusion: When dialing on a mobile phone, it prompts that there is an empty number. In most cases, it is a problem with the other party’s mobile phone number, and in most cases it cannot be solved. If it prompts that there is an empty number, you can try dialing in another time period or on your mobile phone. If it still prompts If the number is empty, it is not caused by your own problem. Just wait for the other party to contact you.

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