title: How to hang up a call automatically?
body: <p>I'm very interesting to know how to hang up a call automatically. If I push my call button </p>
  
  <p>(this is it's code):</p>
  
  <pre><code>-(IBAction)callPhone:(id)sender {
      [[UIApplication sharedApplication] openURL:[NSURL URLWithString:phone.text]];
  }
  </code></pre>
  
  <p>I want to hang up the call after 5 seconds automatically. How can I do that?.</p>
  
  <p>Thanks.</p>