Nokia Corporation

Vesa Blom

Raili Numminen

Juha Bäck

Markus Martin

Jaana Hurme

Mika Salmivalli

Soili Haapala

Petteri Mandelin

Esko Paldan

Tomi Lindgren

Kari Einamo

Veikko Juusola

Leena Rossi

A mobile communication system includes a home location register that transmits an inquiry to the visitor location register about services supported by the visitor location register in response to receiving a location update message, receives a reply from the visitor location register, determines the services supported by the visitor location register based on the reply received from the visitor location register and transmits information to the visitor location register on services that, according to the information stored in the home location register, are available to the subscriber and that are supported by the visitor location register. Similarly, the visitor location register receives the inquiry about the services from the home location register, transmits the information to the home location register on the services supported by the visitor location register in response to the inquiry, and receives the transmitted information.

Processing subscriber data regarding services available to a subscriber in a visited area

A communication network is established by a connection to a user terminal that is capable of roaming amongst a plurality of serving areas. The network includes a controller for each serving area capable of routing a connection to a location covered by that serving area. If a controller serving the user terminal is faulty, a home database, which stores a plurality of identities of other controllers, is able to route the connection to the user terminal by selecting one of the other controllers that is valid.

Communication network and method for improved resilience of a mobile-terminated connection

The invention relates to a method and an arrangement against fraudulent use in a telecommunications network. The invention is based on the idea that at least one fraud profile identified by an identifier is created and the identifier is included in the subscriber data of some subscribers. Based on this identifier the fraud restriction parameters of the subscriber are retrieved from the subscriber's fraud profile, and these fraud restriction parameters are used in detecting and indicating possible fraudulent use. The fraud restriction parameters include values for different service limits, such as the maximum number of call forwarding re-quests and/or the maximum number of location updates during a certain period, and possibly at least for some features an action parameter related to a service limit and implemented when the service limit is reached.

Detecting and preventing fraudulent use in a telecommunications network

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Pirkkala, Finland

Vesa Blom