Broadcast messages (ACDP)

This article shows some examples of the ACDP broadcast messages transmitted from the AlphaCom.

Message	Short name	Message no, Hex	Description
ST_BUSY_BC		0x0036	Broadcast message: Intercom station is busy
ST_FREE_BC		0x0037	Broadcast message: Intercom station is free
CALL_STATUS_BC		0x0040	Broadcast message telling the status of a call
CONN_STATUS_BC		0x0041	Broadcast message telling that a connection is established
DISCON_STATUS_BC		0x0042	Broadcast message telling that a connection is disconnected
EXT_FEATURE_BC		0x0043	Broadcast message when a directory number (feature 50) is dialed on a station
Q_ELEM_ADDED		0x004B	Broadcast message. Reports that a mail message has been added to a station’s mail queue
Q_ELEM_REMOVED		0x004C	Broadcast message. Reports that a mail message has been removed from a station’s mail queue
CONF_IS_ROOT		0x007B	Broadcast message. Sender informs that it is root of conference
CONF_NOT_ROOT		0x007C	Broadcast message. Sender informs that it is no longer root of conference
SET_GRP_FILT	GFLT	0x007D	Set group call filter for a station
CONSOLE_REQ		0x007E	Log on to system debug console (TST)
CONSOLE_DISC		0x007F	Log off from system debug console (TST)
NAME_EXTENSION		0x0080	Special exchange mode using two line names: Send the second line through AlphaNet
GROUP_MEMBERSHIP	GRM	0x0081	Set group membership in NVRAM for a station
SET_MAIL_TIMEOUT	SMT	0x0082	Set the timer of a mail queue entry
COPY_MAIL	CPYM	0x0083	Send a copy of a mail in own queue to a new destination (station or group)
RCI_CHANGED	$RCIC	0x0084	New RCI state reported from the exchange
RCO_CHANGED	RCOC	0x0085	New RCO state reported from the exchange
PARK_INQ_BROKER	INQ	0x0086	Park station from conversation, enter Inquiry call state
UNPARK		0x0087	Unpark station from Inquiry call state station, return to conversation
REQ_TRANSF_CALL	TRFC	0x0088	Transfer call in an Inquiry Call situation.
WRITE_USER_DEF_DATA	WUDD	0x008A	Write User Defined Data (UDD)
CONF_TALK		0x008B	Set Simplex conference speaker
CONF_TALK_STOP		0x008C	Stop station form feeding Simplex conference
MAILQ_NAVIG		0x008D	Do operation on mail queue, or step current mail in mail queue
DISCON_ST		0x008E	Disconnect station from ongoing feature
SET_TIMER	ST	0x008F	Start or stop a timer
SET_STATION_COS	SSC	0x0090	Set COS membership in NVRAM for a station
MODIFY_COS_CONTENTS	$MCC	0x0091	Modify feature membership in COS in NVRAM
GLOBAL_SEARCH		0x0092	internally used for timeout of call request in AlphaNet
Unused		0x0093	Unused
DIAL_DAK		0x0094	Dial DAK on a station
SNV	SNV	0x0095	Update specific system settings (NVRAM) values
TEMP_PROG		0x0096	Temporarily "mute" program distribution to a station
DTMF_CONN		0x0097	Generate DTMF tone during conversation (Only during conversation with RingMaster)
PAR_RING		0x0098	Add a Parallel Ringer station to a call in ringing state
GET_ST_STATE		0x0099	Get status for a station
ST_STATE		0x009A	Status of a station. response to GET_ST_STATUS
RESET_AUDIO_LINK		0x8000	Reset audio link between nodes
AUDIO_PATH_SETUP		0x8001	Set up audio path between a source node and a destination node (possibly via transit nodes)
AUDIO_PATH_OK		0x8002	End to end message: Audio path is ready
AUDIO_LINK_OK		0x8003	Response to AUDIO_PATH_SETUP. Channel number is OK
AUDIO_LINK_NOT_AVAILABLE		0x8006	Response to AUDIO_PATH_SETUP from next node: Channel not granted
AUDIO_LINK_RELEASE		0x8005	Used to release audio path backwards stepwise from node to node when setup meets busy or faulty link
AUDIO_PATH_DISCONNECT		0x8006	Release the end­to­end audio path. Normal disconnect from source or destination
AUDIO_PATH_DELAY		0x8007	Set Duplex switch delay
CHECK_AUDIO_PATH		0x800E	Check of established audio path at regular intervals
AUDIO_PATH_CHECK_OK		0x800F	Positive response to CHECK_AUDIO_PATH
AUDIO_CH_LOOPBACK_REQ		0x8010	Request for loopback audio connection. Used by the Audio Channel Testing process
AUDIO_CH_LOOPBACK_ACK		0x8011	Positive acknowledge of AUDIO_CH_LOOPBACK_REQ
AUDIO_CH_DISCON		0x8012	Disconnect a audio channel after loopback test
AUDIO_CH_FAULTY		0x8013	Response to AUDIO_CH_LOOPBACK_REQ: Requested channel was faulty
LOOPBACK_IMPOSSIBLE		0x8014	Response to AUDIO_CH_LOOPBACK_REQ
AUDIO_CH_TONE_REQ		0x8015	Request a peer exchange to put a 500Hz tone on a audio channel
AUDIO_M_PATH_SETUP		0x8016	Communication in a multi-node network
AUDIO_M_PATH_OK		0x8017	Contains statuses for an AUDIO_M_PATH_SETUP from one or more destination exchanges
AUDIO_M_PATH_BACKTRACK		0x8018	AUDIO_M_PATH_SETUP failed
AUDIO_M_LINK_OK		0x8019	Per­ hop positive response to AUDIO_M_PATH_SETUP
AUDIO_M_FEED_REQ		0x801A	Global Simplex Conference: Some station is pressing the M-key when participating in a conference
AUDIO_M_FEED_STOP		0x801B	Global Simplex Conference: The station is releasing the M-key
DUMMY		0xFFFE	Test message: Should be routed, accepted and ignored

The messages below are broadcast messages transmitted from the AlphaCom on the AlphaCom Data Protocol when a call is initiated by the command: $CALL L8002 L8009

014101FF2118410015003632018002=54

014101FF2119410016003632018009=5D

014101FF211A410017004007D706070B1A2D32018002320180090201=76

014101FF211B410018004107D706070B1A2D01043201800232018009=7F

Message explanation

Space is added for better readability.

Message 014101FF2118410015003632018002=54 

0141 01FF 21 18 41 0015 0036 32018002 = 54
---- ---- -- -- -- ---- ---- -------- - --
 !    !   !  !  !   !    !       !    ! +- Checksum
 !    !   !  !  !   !    !       !    +--- Checksum next
 !    !   !  !  !   !    !       +-------- Station in NET_OBJ_REF format: dir no 8002, node 01
 !    !   !  !  !   !    +---------------- Message id: 0x0036 = Station is busy
 !    !   !  !  !   +--------------------- Reference: Value identifying receivers’ reference
 !    !   !  !  +------------------------- Message class: 65 (0x41) ‘A’ = AlphaCom
 !    !   !  +---------------------------- Options: The number of bytes is given by <hop­count­byte>
 !    !   +------------------------------- Hopcount byte
 !    +----------------------------------- Destination: Node 01, broadcast (0xFF)
 +---------------------------------------- Source: Node 01, module 65 (0x41)