title: Detect if Sim Card is available in iPhone programmatically
body: <p>Hi I am Working on SMSComposer and want to send SMS to Contacts from Address Book.I want to detect whether my iPhone has SIM Card in it or not</p>
  
  <p>Is there any way i can reach this.?</p>
  
  <p>I tried REachability Classes but it gives you information about WWAN and internet Connectivity.Does Core Telephony Framework has such Facility.?
  Something Like Carrier NAme etc for iPhone.??</p>
  
  <p>Any help would be appreciated.
  Thanks
  Vikas</p>