1. All incoming calls are displayed as "unknown"
Please insert the SIM card into other devices with normal caller ID for testing.
1. If the incoming call still shows "Unknown", the incoming call display may not be turned on or the incoming call does not have number information, it is recommended that you contact the operator to confirm the solution.
2. If the caller ID is normal, please call Huawei's customer service terminal hotline 950800 to feedback this problem.
Second, the personal calling number is displayed as "unknown"
Unknown numbers may be displayed for the following reasons. If in doubt, please consult the operator.
1. There may be a problem with the number issued by the operator.
2. Maybe the other party made the call with VoIP software.
3. Some devices can set or use third-party software to block their own numbers and not send their own numbers.
4. The other party has handled relevant business in the operator department, so that the caller will not send his own number.
5. The other party called from abroad and sent the number to the calling party, but the information exchange between operators in different countries may be incompatible, which makes the number information lost in the transmission process and leads to the abnormal display of the incoming number.