title: How to know sim type(2G, 3G) in android phone
body: <p>I would like to know sim type(2G or 3G) inserted in android phone.</p>
  
  <p>If I insert 2G only SIM card in android phone, which api used for knowing sim card type.
  In this case, I have to get return value as a 2G Sim.</p>
  
  <p>best regards</p>