title: Flutter get the phone number
body: <p>How can I get the mobile phone number of the current phone where the application is running? </p>
  
  <p>For example for this plugin? It would be cool to get the mobile phone number directly.</p>
  
  <p><a href="https://github.com/flutter/plugins/pull/329" rel="noreferrer">https://github.com/flutter/plugins/pull/329</a></p>