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
... Van Wyck Lawrence[?]1834-37
Isaac L. Varian[?]1839-41
Andrew H. ...
Buy Halloween Costumes
Kids.Net.Au - kids safe portal for children, parents, schools and