Telephonic communications – Centralized switching system – Switching controlled in response to called station...
Patent
1997-07-17
2000-04-18
Hong, Harry S.
Telephonic communications
Centralized switching system
Switching controlled in response to called station...
379201, 379229, H04M 300, H04M 342, H04M 700
Patent
active
060524618
ABSTRACT:
A method and apparatus for maintaining real-time busy status information for a plurality of telephone extensions connected to a Private Branch Exchange (PBX). The invention includes a database for storing busy status information obtained by a server from signaling information generated by the PBX. The signaling information is obtained via a communication link connecting the PBX and the server. The present invention further includes an interface adapter for converting the protocol of the signaling information into a protocol suitable for storing the busy status information in the database by the server.
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patent: 5703941 (1997-12-01), Nakajima et al.
patent: 5742675 (1998-04-01), Kilander et al.
patent: 5841854 (1998-11-01), Schumacher et al.
PCT International Search Report, Dec. 11, 1998, PCT/US 98/14762.
Ericsson Inc.
Hong Harry S.
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