| 摘要 |
A predetermined call number (rn) is transmitted to the service in response to a first connection signalling of a terminal (EG) and is stored therein, the service producing, storing and transmitting to the terminal (EG) a terminal-specific identification (pin) together with the call number (rds) of the service and storing it in the terminal and terminating the first connection (VL1). During a second connection signalling to the terminal (EG), the call number (rds) of the service is transmitted, the second connection (VL2) being accepted in the terminal (EG) when the transmitted call number (rds) is identical with the stored one, and the stored, terminal-specific identification (pin) is transmitted to the service, the predetermined, stored call number (rn) being verified in the service when the transmitted terminal-specific identification (pin) is identical with the stored one. The invention allows an automatic verification without input of the user, which verification can be carried out at times of little demand on the resources in the network or in the service. |
