Patent ID: 7835737

Claim:
A method for transfer of (voice) data of users of a hierarchically superior service network for the purpose of communication over mobile networks, comprising the steps of: storing data about mobile devices of users and/or data about users in one or more first data files of the hierarchically superior service network; transfer coordinated by the hierarchically superior service network and/or by the hierarchically superior service network itself of (voice) data which users wish to have transferred and/or data used to route and/or store the data; and providing the capability for several mobile networks to provide mobile network facilities for connecting the mobile devices of the users to the first hierarchically superior service network, wherein each of the mobile devices, when connected to a mobile network, is connected to the mobile network as a local device for the mobile network, the method further comprising one or more steps for: using one or more identification modules for signing a mobile device on to a mobile network using identification means present on an identification module, and a separate identification module is arranged in the mobile device per type of mobile network, wherein the user of the device selects which module can be used as local identification module for an available mobile network, wherein a user of the hierarchically superior service network gains access to the hierarchically superior service network via one of the mobile networks regardless of the coverage area in which the user is situated.