Abstract: A procedure for creating a service profile dependent on user selection for a subscription in a telecommunication network. The invention makes it possible to use a single subscription in a telecommunication network with several different subscriber numbers, each number being associated with an optional user-selected service profile.

Abstract: Drawbacks of known methods of location determination are that the location can be determined only when the mobile station is setting up a call and during the call. The invention utilises that characteristic feature of mobile telephone systems that the location of the terminal is always known to the system with location area precision and that the geographical network topology is known to the network planning system. The tracing system includes three functional parts: a first part provides the mobile telephone system with the connection number of the traced terminal as an enquiry input, and in response to the input it receives information on where the subscriber's location area should be enquired for. The second functional part asks for the subscriber's location area and receives in response a location area code, which identifies the location area unambiguously.