title: Proximity profile on bluegiga low energy usb dongle
body: <p>I am working on Bluetooth low energy profiles. I am developing the proximity client and server in Bluegiga USB low energy dongle.
  I have written Proximity server on one dongle and a Proximity client on another dongle. 
  I am able to sent the alert level from client to server. When I am taking the dongles away from each other ( to study the working of the proximity profile) , I am getting 'Link supervision timeout has expired' .<br>
  So I would like to know if this timeout information is correct i.e. is it the correct confirmation signal.</p>