title: Get operator details for dual SIM android phone
body: <p>I am working on an app where I need details of user's SIM
  his phone number, imei number and operator . so far I have achieved his IMEI's numbers refering <a href="https://stackoverflow.com/a/17499889/1887603">this answer</a>, is his device single sim or dual SIM. 
  How do I get his number of both the SIM  and the name of operator for both the connections.</p>