Why do some mobile phones have incomplete caller ID numbers?

1, it may be that the mobile phone does not have the function of calling number display, so you need to contact the network operator to open it. Open the SMS on the mobile phone desktop, find the mobile phone operator number of your choice, then enter the corresponding service number, and select the function of opening the caller ID number according to the SMS prompt sent by the operator.

2. If the other party turns on number hiding, the number will not be displayed when the phone calls. Because some mobile communications have the function of opening number hiding, when the other party opens this function, the specific number will not be displayed on the receiver's phone.

3. If the other party uses an Internet phone, the number will not be displayed. Because some mobile phones don't have the function of identifying the VoIP phone number, it is necessary to check whether the other party has used the VoIP phone when the phone doesn't display the incoming number.

Take Apple 1 1 and IOS 14.2 systems as examples. The specific reasons are as follows:

1. There may be something wrong with the mobile phone number. You can try to change a number to answer the phone again.

2. It may be that mobile phones are roaming around the world. Due to the roaming of some countries or operators, the phone may not display the number when answering the phone.

3. There is a problem with the mobile phone settings, which will also lead to the inability to display the calling number. Open the settings, find the phone option, and then select the calling party to display the phone number in the phone interface, and adjust the close key on the right to open it.