1. The use of signals for controlling communications.
2. In a telecommunications network, the information exchange concerning the establishment and control of a connection and the management of the network, in contrast to user information transfer.
3. The sending of a signal from the transmitting end of a circuit to inform a user at the receiving end that a message is to be sent.
Source: from Federal Standard 1037C and from MIL-STD-188
... one of nine flight attendants on duty at the time of the crash.
Sara is survived by her parents, Mike and Bobbie Low of Batesville, and her sister, Alyson Low of ...
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