[Asterisk-Users] pre-paid (new to asterisk, pls don't shoot on me)

[cubaz at cubaz.org]

Hi everybody =)

new to asterisk, i'm trying to understand if it supports pre-paid cards with
pin number, or if any software to manage pre-paid cards & pins (better if
open source) may be linked to asterisk.
Or may be asterisk linked to a mysql/postgre/others database to update &
check credit expiration, shutting down the current call on credit expiration
?

thanks,
luca f. perozzo