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Call Charge Accounting in a PBX

IP.com Disclosure Number: IPCOM000052368D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Durand, A: AUTHOR [+2]

Abstract

This article describes a method of accounting call charges in a Privat Branch Exchange (PBX) whose control system consists of two stored program controllers sharing a disk system. All the metering and cost data are made available at any time, using the PBX facilities only.

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Call Charge Accounting in a PBX

This article describes a method of accounting call charges in a Privat Branch Exchange (PBX) whose control system consists of two stored program controllers sharing a disk system. All the metering and cost data are made available at any time, using the PBX facilities only.

The metering pulses coming from the trunk lines are scanned, analyzed and recorded in metering pulse counters within the active controller.

On any switchover, the metering counters are transferred from the previous active controller, now in stand-by, to the new active controller via the disk system. During its recovery process, the new active controller clears its own metering counters and is ready to start recording. During its recovery process, the new stand-by controller saves its metering counters in a dedicated area on the disk system. After a delay allowing the disk system write operation to be carried out, the new active controller reads the saved metering counters into a dedicated buffer and then adds these metering counters to its own metering counters which contain the metering pulses received since the switch-over time.

At any time, the system supervisor can edit or reset the stored metering counters. Printouts may contain the following information: - extension or operator directory number,

- department number,

- cumulated pulses, and

- charges in local currency in accordance with the pulse value.

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