title: Make a call using UIWebView won't work in iOS6
body: <p>In <strong>iOS6</strong> I am not able to make a call passing from <code>UIWebView</code>.</p>
  <p>I use <code>UIWebView</code> because my app needs to come back after user close call, that is not possible using <code>UIApplication</code> method.</p>
  <p>This the original code:</p>
  <pre><code>NSURL *telURL = [NSURL URLWithString:@&quot;tel://%@&quot;, escapedPhoneNumber];
  _PhoneCallWebView = [[UIWebView alloc] init];
  [_PhoneCallWebView loadRequest:[NSURLRequest requestWithURL:telURL]];
  </code></pre>
  <p>Why iOS won't start a call?</p>
  <h3>NOTE: In all other iOS, starting from <strong>3.1</strong> to <strong>&lt;6</strong> works correctly.</h3>
  <p>Using <code>[UIApplication sharedApplication] openURL:telURL]</code> it works but the app remain closed after call.</p>