i want to give some PIN or user/pass to some sip user thar are in my city
so,to give calling cost and have some rate for difrent location,i want to have a accounting
i specialy need to check the user credit befor starting caal,if he hasn`t credit dont allow him to call, and during a call if credit be 0 accuounting should say asterisk to terminate the call
i usually use cisco whith IBS and it work good
but here i want to run over asterisk
can anyone tell my how can,or it`s maybe in asterisk word to simply run this project?
and if yes please tell me about installation and configuration tip to run that
thankyou for your attention