title: Directly read SMS when it arrives via GSM modem in PC over Serial Communication
body: <p>I am using SIM9000A GSM Modem and have it connected it to my PC.</p>
  
  <p>The issue is that whenever SMS is received by my SIM I receive below data in PC:</p>
  
  <p><strong>+CMTI: "SM",8</strong></p>
  
  <p>I want that all incoming SMS should be directly be read in PC and need not send any further command. Something like when SMS comes - GSM modem should actually send SMS content to serial port. </p>
  
  <p>Below is the output received for CPMS enq.</p>
  
  <p><strong>AT+CPMS=?</strong></p>
  
  <p><strong>+CPMS: ("SM"),("SM"),("SM")</strong></p>