A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # ALL
Signalling - Telecommunications
In telephony, signaling is the exchange of information between involved points in the network that sets up, controls, and terminates each telephone call. In in-band signaling, the signaling is on the same channel as the telephone call. In out-of-band signaling, signaling is on separate channels dedicated for the purpose.