title: How to make a phone call in android and come back to my activity when the call is done?
body: <p>I am launching an activity to make a phone call, but when I pressed the 'end call' button, it does not go back to my activity.  Can you please tell me how can I launch a call activity which comes back to me when 'End call' button is pressed? This is how I'm making the phone call:</p>
  
  <pre><code>    String url = "tel:3334444";
      Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse(url));
  </code></pre>