title: Can an NFC phone act as an RFID Tag, which can be read at distances higher than 4 inches?
body: <p>To be more specific, I'm trying to implement an Android application, which forces the phone to operate as an RFID tag. This tag is read by scanners placed around doors (thus the > 4 inches constraint) identifying the person and his whereabouts.</p>
  
  <p>The phone will act as a smart tag, thus providing further use cases.</p>
  
  <p>Thank you.</p>