title: Detecting whether or not device support phone calls?
body: <p>Is the below code reliable to be used to determine whether a device can support phone calls or not?
  My concern is if apple changes the iphone string to anything else let's say they decide to have "iphone 3g", "iphone 4" etc.</p>
  
  <pre><code>[[UIDevice currentDevice].model isEqualToString:@"iPhone"]
  </code></pre>