Abstract: A method of managing, in a telecommunication network, user data of a user who may move from a base work area associated with a base exchange which comprises a base memory to another work area associated with another exchange which comprises another memory, independent of whether or not the user is communicating. The method comprises effecting a coupling between the base memory and the another memory when the user moves from the base work area to the another work area; copying a largest portion of the user data stored in the base memory and storing the copied data in the another memory via the coupling, the user data stored in the base memory remaining available for further copying, and changes to be made in the user data taking place both in the base memory and in the another memory.

Abstract: When a mobile telephone being served by a cellular mobile radio domain served by a first switching exchange equipped for mobile radio communication through base stations for the respective calls moves over to another mobile radio domain similarly served by a second switching exchange, some additional connection and disconnection procedure is provided to avoid keeping the first switching exchange in the call path in order to continue the control of the call after a after a so-called handover procedure has put the mobile telephone into communication with the second switching exchange and therethrough with the first switching exchange. The additional steps involve establishing a direct connection between the second switching exchange equipped communication with mobile units and an exchange equipped for fixed point-to-point telecommunication through which the call passes.