A volume radiation memory, nominally a 2. When not being used to extend the truck bed, the extender is advantageously adapted to quickly and easily create a secondary storage area. The shaft is positioned at least adjacent to the heat exchange portion of the core. Upon an inter SGSN routing area update, the old SGSN is given the role as a temporary anchor, whereas the other SGSN is temporarily working as a serving SGSN.