Patent ID: 8583108
Filing Date: 2013-11-12
Classification: H04M,H04W

Abstract:
1. A method for detecting a roaming location of a first mobile network, said method being employed in a system for detecting a roaming location of a first mobile network, said system comprising a collecting means, a finding means, a determining means and a storing means; said method comprising steps of: said collecting means collecting from said storing means a plurality of first call detail records (CDRs) of a subscriber of the first mobile network, wherein the first CDRs are generated when the subscriber makes or receives a plurality of first calls in the first mobile network; said collecting means collecting from said storing means a plurality of second CDRs of the subscriber, wherein the second CDRs are generated when the subscriber roams to a second mobile network and makes or receives a plurality of second calls; said finding means finding, according to the first and second CDRs, at least one of the second calls which is made or received within a time interval after one of the first calls is terminated; and said determining means determining the roaming location of the first mobile network according to a terminated location of the one of the first calls if the at least one of the second calls is found.