title: Show push notification while calling
body: <p>I am having a problem to show push notification during native calling. As my tester said that <code>whatsapp</code> notifications appear while you are native calling or going to receive a call, but my app, when you are on calling screen it doesn't show push notification until you decline the call or end that call. After that the push comes and you can do whatever you want with that.</p>
  
  <p>Can you people advice me that what's wrong with my app. As far as I know, if you are out of application and push comes then only the web server responsible for that or iOS handles the all. Can you suggest me what am I doing wrong? I mean to ask do I need to add something to <code>.plist</code> file or etc.</p>
  
  <p>Any suggestion or advice appreciated.</p>