Patent ID: 9237443
Filing Date: 2016-01-12
CPC Classification: H04L,H04W

Claim Text:
1. A mobile telecommunications system in which a subscriber has a home network and is able to roam in a visited network, in which a roaming record is generated when the subscriber makes or receives a call in the visited network and in which a call detail record is generated when a call is terminated or originated by the home network, the system comprising: an analyzer configured to query a database of the analyzer and analyze the roaming record and the call detail record contained therein to identify a mis-routed telephone call, wherein the call detail record includes a call detail record identifier of at least one of: a calling party or a called party, wherein the roaming record includes a roaming record identifier of at least one of: the calling party or the called party, and wherein the analyzer is operable to compare the roaming record identifier to the call detail record identifier of a given telephone call to determine correspondence of the respective identifiers according to: and wherein the analyzer determines that the given telephone call is mis-routed where the identifiers do not correspond or where the corresponding identifiers indicate multiple calls to the called party at the same time.