title: Is it possible to build socket connection between 2 iOS devices
body: <p>Is it possible to build a socket connection between 2 iOS devices connected to the same network (Without net)?</p>
  
  <p>if it's possible .. Is (CocoaAsyncSocket project) useful for me?</p>
  
  <p>I just want to send a message from <strong>Device A</strong> to <strong>Device B which put the app in background</strong> .. when <strong>Device B</strong> receive the message should show notification to return the app to foreground.</p>
  
  <p>It's not for the App Store, so I don't care if Apple would reject the app because of this behavior.</p>