Why can't use JWA while answering a call?

Other games let me use loud speaker of the phone while playing. Battling is impossible when I receive a call.

the damn game hangs even with a slight touch of the screen on IOS. it’s too fragile. On pogo i can turn off my phone and go back to play pogo almost instantly

Anytime I have to take a call or change screen/app the game takes ages reconnecting or even forces a reboot. It would be better if the game continued running in the background.