What is the reason for the echo on the phone?

The reasons for "hanging up without making a sound" are as follows:

1, the number is blocked by the other party in the mobile company (but the blocked person's number can be reached without setting). You can be sure that the other party has blacklisted yourself with software.

2. When dialing, the signal at your location is unstable.

This number has been blacklisted by the other party.

solution

1, bad signal

With the popularization of 4G network and the continuous improvement of signal quality of operators, there is basically no weak signal or poor signal in urban areas, but occasionally due to many problems, there is no sound when the phone is connected, and the other party can't hear his own voice or can't hear his own voice after being connected, which is probably a signal problem.

Faced with this problem, look at the signal strength after hanging up. If it is weak, you can stay away from subway stations, underground parking lots and other places. If it is not very weak, you can redial.

2. Mute or turn the volume to a minimum.

If you turn the volume of the phone call to the minimum or mute, of course, you can't hear the other person's voice. The solution to this problem is to adjust the volume key until it is in the correct position. Or set the call volume in the menu.