Call charge management device in private branch exchange system

Details Call charge management device in private branch exchange system Call charge management device in private branch exchange system

1993-06-17

1995-07-04

Chin, Stephen

Telephonic communications

With usage measurement

Call charge metering or monitoring

379111, 379112, 379115, 379207, H04M 1500, H04M 342

Patent

active

054307945

ABSTRACT:
A call charge management device in a private branch exchange system including a first private branch exchange installed in a first charge area and a second private branch exchange installed in a second charge area different from the first charge area, the first and second exchanges being connected through a private line. After a telephone call based on a call from a terminal accommodated in the first charge area has ended, the call charge management device receives information on a calling terminal number, call start time, communication time, outgoing path number and called terminal number, searches for a station area code corresponding to the outgoing path number of the information from a table where station area codes are stored in correspondence with outgoing path numbers, calculates a call charge on the basis of the searched station area code and the received information, and charges the calling terminal the calculated call charge.

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patent: 5185785 (1993-02-01), Funk et al.
patent: 5247571 (1993-09-01), Kay et al.

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