AUDIO DETECT

AUDIO_DETECT		0x0053
$VOX 01 L8201
This message triggers the event Simplex Conference Audio on all stations which are active members of a simplex conference. - Used in Multiconference system (MCS) to turn on LED signal in Talkback key when audio is present in the corresponding conference. If sub-events are used, more than one indication is possible in each Talkback key. - Initial implementation requires audio detection by external hardware, using a RCI with $VOX action.
1	BITMAP[1..8]	Bits 1..4 (left nibble) AMC 08.01 0-15 = Sub-event for Simplex_Conference_Audio. Default 0. Bits 4..8 (right nibble): 0 = audio ended (off) 1 = audio detected (on) Advanced Example: $VOX 21 L8201 is sub-event 2 ON.
2	NET_OBJ_REF {LOCAL_DIRNO, LOCAL_ENTITY}	Conference identity