title: How to handle DISABLE_NOTIFICATION_VALUE?
body: <p>If a <code>Bluetooth</code> server has a notifying characteristic and the remote client writes to the descriptor of this characteristic the value <code>DISABLE_NOTIFICATION_VALUE</code> , then how must the server cope with this descriptor write request? </p>
  
  <p>Must the server software refrain from calling any <code>GattServer.notifyCharacteristicChanged()</code> , or will the <code>Bluetooth</code> stack prevent sending notifications to the client after <code>GattServer.notifyCharacteristicChanged()</code> has been called by the server software?</p>