Patent ID: 7620183

Claim:
A method for setting up a connection between a terminal which supports a set of encryption techniques, and a serving mobile radio network, comprising: transmitting a message from the serving mobile radio network to the terminal, which designates one or more encryption techniques supported by the serving mobile radio network, if any; transmitting an encryption administration information item from a home network of the terminal to the terminal; determining whether the encryption administration information item indicates that unencrypted connections to the serving mobile radio network are necessary; in response to determining that the encryption administration information item indicates that unencrypted connections to the serving mobile radio network are necessary providing the user of the terminal a choice of whether to set up the connection unencrypted or abort the connection attempt; and in response to determining that the encryption administration information item does not indicate that unencrypted connections to the serving mobile radio network are necessary: the terminal selecting an encryption technique supported by the serving mobile radio network; and operating the connection by using the encryption technique selected by the terminal; and if no encryption technique is supported by the terminal and by the serving mobile radio network, operating the connection unencrypted after authorization.