Voice changer on call?

Question

Telephony

I would like to prank a friend to call from the left number and change the voice
The number is
there Are there any programs for android to replace the voice when calling
How can this be implemented

Answer 1

On Skype, I remember doing different voices. Both funny and close to real.

Answer 2

And what exactly prevented you from looking where they usually look for android applications?
https://play.google.com/store/search?q=voice%20changer