FREEPHONE SERVICE FOR AN ADVANCED INTELLIGENT NETWORK

摘要

The freephone service includes the steps of receiving, at a service switching point, a telephone number entered by a caller, and sending a query to the service control point coupled to the service switching point. Thereafter at the service control point, the received telephone number is verified as a freephone service access number for making a freephone call associated with a pre-established account. The telephone number is then translated to a destination number by consulting a freephone service execution logic for routing the freephone call. The call is then completed to the destination number, and the charges associated with the completed call are billed to the pre-established account.