Why do I get a high pitched noise when I make or receive calls?

[AC Question]

The noise is a very high pitched squealing noise. It seems to happen with increasing frequency & on calls with i-phone users.

 

[mehigh101]

Welcome to Android Central!
Your microphone might be damaged. Or your speaker.
Best regards,Mikey. For any more questions,PM me. I hope you found what you were looking for.
Sent from my Samsung Galaxy S7 Edge SM-G935F.