title: How to detect that an already discovered and paired device is available?
body: <p>I have already discovered the other device and I have already paired it. At least I have it in the list of paired devices on my Android phone.</p>
  <p>Now on <em>BluetoothSocket.connect()</em> two problems can occur:</p>
  <ol>
  <li><p>The remote device is switched off or otherwise unavailable</p>
  </li>
  <li><p>The remote device forgot about the pairing because it can only pair one other device and has been paired with a different phone</p>
  <p>=&gt; Then connect fails after a certain timeout.</p>
  </li>
  </ol>
  <p>Is it possible to check that an <strong>already paired</strong> device is really available <strong>and</strong> remembers that it was paired with my phone without connecting to it? This is not about detecting if a device is connected. Paired and visible is not the same as connected.</p>