H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
344/18, 344/25
H04Q 11/04 (2006.01)
Patent
CA 1244537
SWITCHING SYSTEM AND METHOD FOR NETWORK HAVING A PLURALITY OF TERMINAL CONTROL EQUIPMENT UNITS ABSTRACT OF THE DISCLOSURE A switching system for a network having terminal control equipment units connected to a network termi- nation unit, in which terminal control equipment units of the same kind are connected with an exchange through a subscriber's line which has assigned to it a single subscriber number and which has a plurality of communi- cation channels, the system including s storage units for each terminal control equipment unit of the sub- scriber's line for storing call statuses of incoming calls. When a first incoming call is received, the storage units of the terminal control equipment units set respective call statuses for the first incoming call to a ringing state. When a second incoming call is received before a response to the first incoming call is transmitted, the storage units also set the call statuses for the second incoming call to a ringing state. When any one of the terminal control equipment units in the ringing state delivers a response, the call status for the first incoming call of the terminal control unit delivering the response is set to an active state and the call statuses for the first incoming call of the other terminal control units in the ringing state are released. The call statuses for the second incoming calls are maintained.
481709
Nishino Tetsuo
Okamura Hiroko
Yamatani Yasunori
Fujitsu Limited
Mcfadden Fincham
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