iOS audio interruptions

I'm having a problem and I'm not sure if I should code something or it's supposed to work out of the box... The thing is, when activating and deactivating device music via an Apple headset mic button, the game audio should turn back on, but it doesn't. Should I handle this manually from scripting? In that case, how should I do it? Otherwise, there is a way to solve this? As Apple's HIG require this to be well handled:

“After a resumable interruption ends, an app that displays controls for media playback should resume what it was doing when the interruption occurred, whether this is playing audio or remaining paused. An app that doesn’t have media playback controls should resume playing audio.”

Thanks in advance.