How to verify ID from users ?

Hi all,
I'm using AsteriskNOW for my little office of 4 users. I want to control outbound phone calls from each single user. What I want to do is:
I assign each user an unique ID. If they want to make a call out of the office, they have to call the 00 number, then the FreePBX asking them to enter their ID. If entered ID's correct, then they can make a phone call out.
Any help would be greatly appreciated.
__________________
Dan Strong



Use PIN Sets. Then assign
Use PIN Sets. Then assign this to your Outbound Routes.
Mikael Carlsson
(I am off-line, tinkering with my Chevy and my radios, don't know when I will be back)
It works !
I works perfectly.
Thank you so much for your help.
Dan Strong