Why does Apple display the calling number but not the calling number?

Apple's mobile phone caller ID no call number processing method: Because the iPhone does not have the function of turning off the caller ID separately, the situation of "no call number" is mostly caused by the party who initiated the call. The common situation is as follows: 1. Calling problem: When the calling number is enabled to hide the calling number, VoIP call or foreign operator number, the calling number may not be displayed normally, so it is recommended to change it to another number for testing;

Second, the called party's problem: the called number is not enabled or the function is abnormal. It is recommended to check whether the caller ID function is turned on and whether the turned-on function status is normal; Three. International roaming: In the state of international roaming, the calling number may not be displayed normally due to the influence of operators in some countries or regions in the roaming area.