How to get the iPhones GSM signal level?
<p>For an application I'm developing I need to get the GSM signal level, but I haven't been able to find how to do it using public APIs. I thought that it couldn't be done, but I have found an app on the itunes store that does it (<a href="http://itunes.apple.com/app/no-signal/id366168900?mt=8" rel="nofollow">here</a>). Can someone help me with this?</p>

<p>Thanks.</p>
