title: Meaning of "data_coding" field in SMPP
body: <p>What is the meaning of <strong>"data_coding"</strong> field in the <a href="https://en.wikipedia.org/wiki/Short_Message_Peer-to-Peer" rel="nofollow noreferrer" title="SMPP">SMPP</a> protocol? </p>
  
  <p>I searched for this but couldn't find any helpful resource.</p>