Phone To Phone Business
Phone to Phone business is similar in nature to PC to Phone business except for the fact that the ITSP now also needs to arrange for originating gateways. A gateway is a device that can receive a phone call over PSTN and convert it into IP for delivery over Internet. A gateway usually has a fixed number of ports. Analog gateways take analog phone lines while digital gateways take digital phone lines. See the “Basics of VoIP” white paper for details of analog and digital lines. Once the gateway has converted the PSTN call to IP, the rest of the delivery is same as it is in the PC to Phone’s case.
In a PC dialer, a user can enter his username and password and that is enough to identify the user. The username can be the PIN on a prepaid card along with its respective password.
In the phone to phone scenario, an IVR (interactive voice response) system is required with the gateway to prompt the customer for his PIN. The PIN entered by the customer is taken by the gateway or gatekeeper and given to the Radius server for authorization.
Read more about this topic: Origination
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