Broadcast messages (ACDP)

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

Message	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

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)