MOBILITY MANAGEMENT

摘要

A user (3) is registered to use telecommunications services provided by a ho me service provider in a wired home network (1). When he travels abroad, the us er (3) may also be provided with telecommunications services by another service provider operating in a wired visited network (2). The user (3) "attaches" himself to the visited network (2) which includes nominating a telephone (14 ) to which calls made to a user's personal number may be forwarded. The user ( 3) is also assigned a prefix number which enables him to make calls from any phone in the visited network (2).