A METHOD FOR ACHIEVING SESSION WITH DIFFERENT PLAIN AND SECURITY LEVEL IN THE COMMUNICATION NETWORK

摘要

The invention discloses a method for achieving the session of the different plain and security levels in the communication network. The terminal device of this network can support the communication at one or plurality of security levels. The method comprises: registering the security parameter of a set or plurality sets of the security levels corresponding to the session plain and security level what each terminal user had in the core control device of said network; the terminal users originate the call to said core control device, wherein there is the security parameter corresponding to the current session plain and security level specified by said user in the call request; said core control device controls the call of plain and security level based on the security parameter in the call request and the security parameter registered by the called party user. The invention permits to set the different manners of plain and security interacted with the other users based on the requirement for the different situations, the core control device controls the call based on the plain and security level setted by the user.