Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent
1990-10-26
1991-11-05
Schreyer, Stafford D.
Telephonic communications
With usage measurement
Call charge metering or monitoring
379 60, 379133, H04M 1504, H04M 1516, H04Q 702
Patent
active
050635913
ABSTRACT:
A method and system for producing a toll ticketing record for a call with a mobile subscriber moving within the cells of at least two exchanges and generating a toll ticketing record of the call which includes sections which are related to the intersystem legs of the call.
REFERENCES:
patent: 3829617 (1974-08-01), Calthamer et al.
patent: 4698839 (1987-10-01), DeVaney et al.
patent: 4876738 (1989-10-01), Selby
Schreyer Stafford D.
Telefonaktiebolaget L M Ericsson
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