Deregistering method of subscriber registered on a terminal through mediation of registering data and telecommunication apparatus for making the same

摘要

Registering on a terminal based on registering data that are stored in the terminal memory and need of subsequent deregistering from the same terminal is disadvantageous in that if said deregistering is forgotten the terminal memory is uselessly filled up with invalid information. This can be prevented if the deregistering can be carried out from another terminal, whereby it can be done either by explicit deregistering and implicit deregistering based on another registration. If the registering data are divided into identification data and terminal data, then in such a case the terminal memory is employed in greater efficiency and if the identification data are divided into user data and service data there exists even possibility to deregister the user on a specific terminal from selected services, only.