I need voice call change app.
Preferably it would just make the call through the user's mobile/cellular provider but if this is not possible we would need to look into a VOIP setup.
There is plenty of Voice modulation script that is public with abilities to change the users voice.
Here is an example of the kind of app: https://play.google.com/store/apps/details?id=com.weirdvoice&hl
Something very similar to that
If you have experience in this app, please apply to me with your experience app.
If you don't send your past work simialr to mine, you will be ignored.