title: Will Apple reject my app if i use VOIP Capability in chat app(WhatsApp like application)
body: <p>We are developing a chat application like WhatsApp. It's XMPP based application, the XMPP complaint servers are follows push model for sending the messages, presence..etc.</p>
  
  <p>So when user is offline the messages goes into offline stack and pushes again once user comes into online.</p>
  
  <p>We want know that when app is killed , Can we use voip capabilities to run in background? or we really need go push notification model?</p>
  
  <p>Please help Me .</p>