Patent ID: 7136636

Claim:
A method for monitoring network events in a wireless network, the method comprising: establishing a plurality of location history records keyed to a plurality of mobile terminals operating in a wireless network; establishing at a mobile switching entity a plurality of call detail records keyed to the plurality of mobile terminals, wherein the plurality of call detail records include two or more call detail records that each indicate an occurrence of a given call event in the wireless network, and wherein the plurality of call detail records include at least one call detail record that does not indicate the occurrence of the given call event in the wireless network the given call event being selected from the group consisting of (i) a dropped call event and (ii) a blocked call event; selecting from the plurality of call detail records the two or more call detail records that each indicate the occurrence of the given call event in the wireless network; based on the selected call detail records, identifying respective mobile terminals that experienced the given call event; selecting from the plurality of location history records corresponding location history records keyed to the respective mobile terminals; and combining the selected call detail records and the selected location history records to determine locations of the given call event in the wireless network.