H - Electricity – 04 – L
Patent
H - Electricity
04
L
340/93
H04L 7/00 (2006.01) H04L 5/00 (2006.01) H04L 12/18 (2006.01)
Patent
CA 1176339
ABSTRACT A signalling system for multi-address calling and a signal control equipment therefor in which a control signal starts with a synchronize signal, followed by function determination field indicating that the control signal is any one of a selection signal, a call accepting state indication signal and a data receiving state indication signal and by terminal appointing field in which the signal set in the function determination field is provided bit by bit in a predetermined order for each destination terminal. Circuit arrangements for transmitting and receiving such a control signal are provided as a signal control equipments both on the side of an originating terminal and on the side of an exchange.
378235
Imai Kazuo
Mizuno Toshiro
Kirby Eades Gale Baker
Nippon Telegraph & Telephone Public Corporation
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