0-9 | 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
Signaling in which an arrangement is made to provide direct current signaling and dial pulsing beyond the range of conventional loop signaling. (188) Note: Composite signaling, like DX signaling, permits duplex operation, i.e., permits simultaneous two-way signaling. Synonym CX signaling.