H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 15/16 (2006.01) H04M 15/00 (2006.01)
Patent
CA 2171493
In an automatic message accounting (AMA) record distribution network, a method and system for sorting AMA records by using an area code or numbering plan area (NPA) data array and directory number bit maps to identify AMA records which are of interest to an operation center. Operation centers have access to every AMA record generated by a toll switching network and are initialized with a table of AMA structure and call-type codes, an NPA data array and directory number bit maps. NPA entries in the data array which are of interest to a particular operation center contain pointers (i.e., memory address locations) of the directory number bit maps. As AMA records are received by the operation center, directory numbers which have NPAs of interest to the operation center are compared to directory number bit maps. A directory number of an AMA record which corresponds to a numbered bit position of the directory number bit map is processed by the operation center. AMA records which contain directory numbers which do not have NPAs of interest to the operation center, or which do not correspond to a directory number bit map are discarded.
At&t Ipm Corp.
Kirby Eades Gale Baker
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