Preventing misuse of call forwarding service
AssigneeNokia Telecommunications Oy
InventorJaana Hurme
Life of this patent
Estimating the term…
Abstract
A method and an arrangement for detecting the misuse of the call forwarding service in a mobile communication system. In the invention, call forwarding is activated for routing a call addressed to a mobile subscriber to a forwarding number supplied by the mobile subscriber; the forwarding number is modified by registering call forwarding to another number; the number of call forwarding registrations is counted subscriber-specifically; and an alarm is generated when the number of call forwarding registrations exceeds a predetermined maximum value during a predetermined period of time.
Claims4
A method for detecting the misuse of the call forwarding service in a mobile communication system, the call forwarding service comprising:
- activating call forwarding for routing a call addressed to a mobile subscriber to a forwarding number supplied by the mobile subscriber,
- changing the forwarding number by registering call forwarding to another number,
- providing a subscriber database with counters for counting a number of call forwarding registrations subscriber-specifically,
- counting the number of call forwarding registrations subscriber-specifically in said subscriber database by using said counters,
- generating a report on the number of subscriber-specific call forwarding registrations at predefined intervals, and
- generating an alarm when the number of call forwarding registrations counted for a subscriber in said subscriber database exceeds a predetermined maximum value during a predetermined period of time.
An arrangement for detecting the misuse of the call forwarding service in a mobile communication system comprising:
- mobile stations,
- mobile services switching centres, and
- subscriber data bases,
- wherein the mobile services switching centres and the subscriber data bases are supplied with means for implementing call forwarding on the basis of call forwarding registered by a mobile station,
- at least one subscriber data base is provided with counters for subscriber-specifically counting the number of times a mobile station has registered a call forwarding,
- means for generating a report on the number of subscriber-specific call forwarding registrations at predetermined intervals, and
- an alarm arrangement for generating an alarm when the number of call forwarding registrations counted by one of said counters during a predetermined period of time exceeds a predetermined maximum value.
Dependencies are inferred from the claim text.