Patent ID: 6993320

Claim:
A method for the simplified access to a telecommunication network and the billing of telecommunication services, in which in the telecommunication network authentication processes are used, which makes it possible for a subscriber to prove at any freely choosable point in time that a payment for service performance requested or to be requested is being made or has already been made, the method comprising: registering of the subscriber in the mobile radio network by means of a mobile radio apparatus and a subscriber identity module SIM containing an IMSI not registered in the mobile radio network; wherein first of all a registration of the end apparatus occurs at the appropriate base station controller BSC; sending a Location Update Procedure over the Mobile Switching Center MSC and the Visitor Location Register VLR to the Home Location Register HLR, at which the IMSI deposited on the SIM is transferred to the HLR, wherein the HLR checks whether the IMSI is registered and in the negative case sends an error report back to the VLR; wherein in the VLR a special module is arranged, the assignment of which is to receive the error reports, evaluate them, and release corresponding predetermined actions whereby the call is rerouted by means of an established routing to a specially arranged credit-card-server which checks the validity of a credit card of the subscriber, and in case of a valid credit card, authentication and registration of the subscriber and billing of the claimed services occurs by means of the credit card.