Abstract: A method of customer identification for personalizable Internet portals is described. The method identifies customers on the basis of the phone number of the calling party, in which the phone number and service request is transmitted from the terminal via the access network to a proxy server, which in turn is responsible for converting the protocol between the access network and Internet, in which depending on the service request, the proxy server inserts a customer ID into the service request and the customer ID is called up by the proxy server from a customer registry based on the MSISDN, so that at the portal the ID can be taken from the service request and the authorization of the customer can be verified through an inquiry sent to the customer registry at which point the service request of the customer is fulfilled.

Abstract: The invention relates to a process and a device for establishing the authenticity of the identity of a service user relative to a service provider for release of an access authorization (password) for a service using two different data input terminals, a registration server and a message converter.

Abstract: A mobile radio networks (2) linked with fixed networks (1a, 1b) in each case at least one charge detection station (7) is switched in, over which the charges in the linked networks (1, 2) are detected, and that each subscriber end apparatus (8, 9 and 10, 11, respectively) communicates with an exchange center (5, 6) over a telecommunication connection (12, 13 and 14, respectively) and that for each connection from a subscriber register, which is emplaced for example in the mobile radio network (2), specific data of the subscriber end apparatus (8, 9 and 10, 11, respectively) are asked, which are included in the charge calculation, in which a connection from the fixed network (1) or the mobile radio network (2) which is not covered by a credit is prevented by the means that the transfer of the data to the charge detection station (7) and the demanding of the subscriber data from the data bank occurs already at the requesting of a connection, and that in the case of a lack of credit the build-up of the requested