How do I cause a telephone call to be made in the background in iOS 4.0?
<p>I would like to be able to make a call from within my application, but have it start in the background using the new features in iOS 4.0.  I tried using the following code:</p>

<pre><code>[[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"tel://09650159343"]]]
</code></pre>

<p>but this causes a call to be made in the foreground, terminating my application.  Is is possible to make a call and have it start in the background?</p>
