VOICE over IP    -  SOLUTION WITH CISCO GATEWAY 

Using VoIP with the Cisco gateway

Prepaid Call Scenario

A customer dials the ISPs Gateway number and will be asked to enter his PIN number. After entering the PIN, the Gateway will transfer the authentication packet to the RADIUS Server, which calls the authentication procedure in RODOPI. If the customer is successfully authenticated, RODOPI returns the credited amount of money left on the customers’ account to the RADIUS. Radius sends it to the Gateway and the Gateway will announce this to the customer. If the credit is greater than zero, the customer will be asked to enter his/her destination number. After entering RADIUS for the second time, the system will call the authentication procedure in RODOPI. This time RODOPI calculates the remaining time for this call depending on the rate to this destination, which is determined by RODOPI. The remaining time will be announced to the customer just before the call is established. The call is established, and after call termination, the credit of the customer will be decremented in RODOPI. If the credit limit is reached during the call the Cisco Gateway warns the customer and then terminates the call. Afterwards, the CDR billing record will be passed through RADIUS in RODOPI.

Try it out, using the demo.