title: iOS 4.2 - Return to app after phone call
body: <p>I can successfully initiate a phone call within my app using the following:</p>
  
  <pre><code>[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://123456789"]];
  </code></pre>
  
  <p>However, is it possible to automatically return back to the app once the phone call has been terminated? It seems this was not possible under iPhone OS 3.0 but I am hoping it is now possible under iOS 4.2 with multitasking (I wasn't able to find any information on this question specific to iOS 4.2).</p>
  
  <p>Thanks in advance for any assistance!</p>