| 摘要 |
<p>A system according to the invention comprises a subscriber administration logic located at a service control point SCP of an intelligent network, and a subscriber database of a service data point SDP that is associated therewith by CCS signalling. Subscriber records of the subscriber database are created, updated and deleted by the operator, but the create, read/write and delete functions can also be performed via a telephone network associated with the intelligent network. The operator can activate the control without that the subscriber notices it. For example, as a visitor subscriber of a mobile phone network is updated to a mobile phone network, the subscriber data are automatically forwarded to the intelligent network, which creates a subscriber record for the subscriber concerned. From the exchange performing call control, charging pulses (4) generated during the call are forwarded to the service control point SCP in the manner defined by a monitoring request sent by a service control function SCF, the service control point calculating the real time charges for the call. The current charges are compared with the value indicated by the subscriber record (31), and the instructions contained in the record are followed. The system makes it possible to implement both call- and subscriber-specific restrictions in real time.</p> |
