Patent ID: 8117316

Claim:
A terminal shift management system comprising: an authentication authorization accounting (AAA) interface unit which receives unique information having fixed properties with respect to a terminal authenticated by a subscriber terminal authentication system and a user of the authenticated terminal; a terminal interface unit which receives status information having variable properties with respect to the authorized terminal and a currently used service; a unique information managing unit which stores and manages the unique information; a status information managing unit which stores and manages the status information; a first terminal; and a terminal shift management control unit which receives a terminal shift request from the first terminal that currently receives the service, provides to the first terminal a list of terminals available for receiving the current service with reference to the unique information and the status information so that a user of the first terminal selects a second terminal from the list, receives information indicating that the second terminal is selected, generates service session information which is required to send the currently used service to the second terminal, and sends the generated service session information to the selected second terminal to which the service is to be shifted.