T echnology T oday For a Wireless Carrier , initiating a wireless call requires that the calling partys subscriber records must have the ability to be accessed. The records are confidentially kept in a com- puter system database, containing service fea- tures, billing data, personal security codes, roaming history , and other pertinent informa- tion about the subscribers wireless service. As the call goes to another wir eless line, the called p

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