title: How to detect that the call is answered or rejected?
body: <p>I am making an application to call multiple numbers.
  In that app</p>
  
  <ol>
  <li><p>When <strong>I call to 1 person and if the call is answered by the user then the loop should be stopped.</strong></p></li>
  <li><p>But <strong>If the call is rejected then the call should be on next number and loop should be continue.</strong></p></li>
  </ol>
  
  <p>My problem is <strong>I can't detect whether the call is rejected or answered.</strong> When I had search on net some people says it is not possible to detect the call is answered or rejected.</p>
  
  <p><strong>Is it really not possible to detect the call in android? If it is possible then how can I do that?</strong></p>