How to fixed Echo sound during phone call

[Samuel Baker Luka]

I'm using Galaxy Note 9,
My friends are Experiencing echo sounds during a phone call and I don't know how to fix

 

[B. Diddy]

Welcome to Android Central! There are a number of threads about this. Try these:

https://forums.androidcentral.com/a...-during-phone-calls-note-9-a.html#post6912687
https://forums.androidcentral.com/s...295-echo-issue-while-speaker.html#post7074626
https://forums.androidcentral.com/s.../1035494-echo-wifi-calling-2.html#post7067097
https://forums.androidcentral.com/s...42606-bad-echo-new-s22-ultra.html#post7059646