Authenication for incomming calls

hi help me

how to configure authenication for incomming queue calls .
when a caller enters the ivr he have to enter is fourdigit id and then password ,if the both are correct he will allowed to queue calls.

its like phone banking.

is it possible in freepbx.
if yes please help me to do this

I think that what you need is called the Privacy Manager in Incoming Routes.

Hope that helps,