Packet switching system for a distributed processing ISDN switch
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United States of America Patent
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-
Dec 11, 1990
Grant Date -
N/A
app pub date -
Jul 10, 1989
filing date -
Jul 11, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A packet switching system for a distributed processing ISDN (Integrated Services Digital Network) has terminal line control units, trunk line control units, data packet assembly/disassembly control units, voice packet assembly/disassembly control units, a call processing control unit, and an internal bus device for allowing data or voice to be transferred among the various control units. The data packet and voice packet assembly/disassembly control units are shared by all of the control units. The internal bus device is implemented as a packet bus for transferring packetized data or voice, a message bus for transferring non-packetized data or voice, and a call processing bus for transferring call processing data.
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