What if I can't answer the phone because the phone reminds me that I am on the phone?

If calling your mobile phone means that you are busy and can't answer the phone, I suggest you check whether your mobile phone has the blacklist function of incoming calls. If the blacklist of incoming calls is not set, it is suggested that:

View call blacklist

Check whether the phone is set with the call blacklist function.

Check the cell phone signal

Check whether the cell phone signal is stable and try to change a location.

Replace SIM card

Turn off the phone and restart it to see if it is back to normal. Replace other SIM cards to see if they are restored.

Restore factory settings

Try to back up the data and restore the factory settings.

A nearby service center.

If the problem still exists, it is recommended that you take the purchase invoice, maintenance card and mobile phone to the nearest service center for testing.