Can backgrounded app record phone calls?

I'd like to know: Let's say there's a backgrounded app which has microphone access, such as Signal or SoundHound or Shazam. It's established that these apps are allowed to record audio in the user's environment even after being backgrounded, seemingly for as long as they want and even upload that sound data. But can they ALSO continue recording even while another app that is in the foreground is using the microphone, such as the Phone app or Signal?

Hi,

You can't initiate recording in the background but assuming it was started this way, with the correct the category for the audio session and app can record in the background. For the second question, generally no, 2 apps cannot access the microphone at the same time.

Can backgrounded app record phone calls?
 
 
Q