How to transfer the converted voice over the mobile network?

Question

Java

From an Android device, you need to transmit a converted voice over the mobile network. The key issues are receiving voice in the form of a bit stream and its further transmission by regular means. Are there already ready-made classes or APIs for similar purposes?

Answer 1

Could you describe the desired result-procedure a little more specifically, for example, in pseudocode?
If you need a "spy feature" of voice transformation when talking on the fly, then surely someone has done this, but in any case, he did not want to share it with the masses. Well, if you just need to implement secure communication, then IP telephony and some kind of encryption protocol like RSA or any other that uses the principle of a one-way function will help you here. (cheap, cheerful, and most importantly "secure").
Well, if you're just worried about the fact that your mobile can be tapped, then it's better to drop it. Mobile communications are well protected only if the operator himself does not allow you to listen from their towers.