Signalling

In telecommunication, the term signaling has the following meanings:

• The use of signals for controlling communications.
• 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.
• 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.

The term may also refer to railway signaling.

Source: from Federal Standard 1037C and from MIL-STD-188

See Also

• Signal