How to find a call is unanswered in iphone
<p>If i make a call from an application using</p>

<pre><code>[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://1234567890"]];
</code></pre>

<p>How can i check if the call is answered or unanswered</p>

<p>Thanks,</p>
