Time-division switching system
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United States of America Patent
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-
Jan 8, 1991
Grant Date -
N/A
app pub date -
Jan 19, 1989
filing date -
Jan 22, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A time-division switching system, in particular a multiservice key telephone or PABX system, is controlled by programmed management logic and synchronized by a timebase for selective on-demand exchange of information between terminations to which telecommunications terminals are connected either directly or through links to other, identical or at least compatible switching systems. The system includes programmed system management logic based on an optionally duplicated processor with directly addressable memory which stores all command operations, in particular those for switching information exchanged by means of the terminations which are connected in parallel to a port of the processor by a bus-type time-division multiplex link.
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