H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
344/25
H04Q 11/04 (2006.01) H04L 12/64 (2006.01)
Patent
CA 1237185
- 86 - INTEGRATED PACKET SWITCHING AND CIRCUIT SWITCHING SYSTEM Abstract An integrated packet switching and circuit switching system comprising a number of switching modules each connected to a different plurality of user terminals. Each switching module includes a time-slot interchange unit for providing circuit-switched communication channels and a control unit that controls the operation of the time-slot interchange unit. Each switching module also includes a packet switching unit used both to provide packet-switched communication channels among the user terminals connected to that switching module, and to switch control information between the user terminals and the control unit to establish circuit-switched calls and packet-switched calls.
479976
Beckner Mark W.
Davis James A.
Dine Gilbert A. Van
Gausmann Eric J.
Hiller Thomas L.
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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