| 摘要 |
<p>To provide a voice response unit for use with a telephone communication system, which is able to authenticate a user. Information-providing sites 8, 11 which provide a service using the voice response unit, has user databases 9, 12 for storing the information identifiable of a service subscriber. On the other hand, a voice response unit 5 is provided with a similar user DB 6. If a new subscription or cancellation arises for the service using the voice response unit 5 in the information-providing sites and contents of the user database 9 is changed, a database update instruction is transmitted to the voice response unit 5, so that contents of the user DB 6 is synchronized with contents of the user database 9 or 12. The voice response unit 5 makes authentication of the subscriber using the user DB 6, and provides voice information only to a valid subscriber.</p> |
