Hi @IBN
You will need to forward the call to the user in question for call forward to work. By default a Auto attendant or Call queue will ignore any rules the end users have on their calls. This is by design to stop call being forward off and unable to be retrieved.
But if you Forward the call to the user the call is no longer being held by the AA or CQ so the users call settings take affect.
Hope that helps.
Regards,
T