Information system for a PABX
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United States of America Patent
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-
Nov 5, 1996
Grant Date -
N/A
app pub date -
Nov 8, 1994
filing date -
Nov 9, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to an information system for a PABX (1) having extensions (B1-B5), a switchboard (2) for manual switching operations, and a direct inward dialling (DDI) function for switching calls provided with a DDI code directly to the PABX extensions. In the invention, the majority of incoming calls to the PABX are controlled by the information system of the invention, which comprises a database (21) maintaining status information on PABX subscribers, and a central processing unit CPU (20) connected to the database and to a voice message unit (22) controlled by the CPU on the basis of status information retrieved from the database, to deliver the desired voice messages to the calling party. When there is no reply from an extension or an absence code has been programmed, the CPU (20) reads from the database the reason for the absence and directs the voice message unit (22) automatically to output a voice message indicating the reason for the absence and, if desired, offering alternative functions, such as leaving a call back message, switching to another PABX extension, etc.
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