1. The call may be interrupted due to poor signal coverage in the area where you or the other user is located. It is recommended that you move to an area with good signal coverage or feed back such problems to the operator.
2. A strong signal interference source may exist in the area where you or the other user is located. When the electromagnetic interference in the air exceeds a certain extent, the mobile phone may have no signal or be disconnected. It is recommended that you avoid powerful electromagnetic devices during calls.