Signalling system and signal control equipment for multi-address calling
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United States of America Patent
Stats
-
Apr 12, 1983
Grant Date -
N/A
app pub date -
May 20, 1981
filing date -
Jun 5, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
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 a 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, the function determination field being followed by a 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 signal control equipments both on the side of an originating terminal and on the side of an exchange.
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