title: Auto connect with already paired BT device
body: <p><strong>Goal:</strong>
  I'm trying to connect my Android phone to an already paired bluetooth device when its in proximity.</p>
  
  <p><strong>Issue :</strong> I am novice to BT technology. I am pairing up my Android phone with a BT device using classic bluetooth API (SPP) as BT device is intent to send large data to mobile app. </p>
  
  <p>The requirement/issue is : Mobile device should automatically connect with already paired BT device when in range. Note that we are using classic BT API and not the GATT. </p>
  
  <p>How does the car audio system automatically connects with driver's phone. I think its the car's BT system who initiate pairing request with phone when car is turn on?</p>