Abstract:A possible short-term solution for creating an inter-cellular standard roaming service is presented. An intercellular standard roaming service is, for example, the service whereby a GSM mobile subscriber can roam into a PDC network operator by means of a user identity module. For interconnecting the different cellular systems, two network nodes called "Interworking Location Register (ILR)" and "Interworking Mobile services Switching Center (IMSC)" are proposed. These network nodes are designed to cause no modi… Show more
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