I need an app for android that allows me to send the caller's audio to a caller during a call.
To make me understand, I give an example: I call (through a normal call or whatsapp or telegram or other) a friend of mine, I open Youtube (for example) and he must be able to hear the audio of my youtube. That is, I want him to listen to both my voice and the audio of the apps I opened on my smartphone.
Here it says that it is not possible to do this [login to view URL], while here there are some examples on how to do [login to view URL]
Please contact me only if you understand what I'm talking about
I hope I explained myself