Welltech SPCI2S Intel NetStructure SS7 Boards - Manual (Page 78)

SS7 Programmer’s Manual for SPCI2, SPCI4 and CPM8 Issue 2 Page 78
5.4.4 MTP Transfer Indication
Synopsis:
Primitive indication issued by MTP3 to convey a Message Signal Unit (MSU)
from the board to the appropriate user part.
Message Format:
MESSAGE HEADER
FIELD NAME MEANING
type API_MSG_RX_IND (0x8f01)
id user_part_reference
src MTP_TASK_ID
dst
User Part Module ID
rsp_req 0
hclass 0
status 0
err_info 0
len Number of MSU octets in parameter area
PARAMETER AREA
OFFSET SIZE NAME
0 len MSU data in binary format as received from
the network, commencing with the Service
Information Octet (SIO) and followed directly
by the Signalling Information Field (SIF). The
level 2 information (ie BIB, BSN, FIB, FSN LI
and FCS) is removed by the board.
Description:
This message is used to convey Message Signal Units received from the
network from the user part to the Message Transfer Part (MTP) on the board to
the user part on the host computer.
Messages will only be issued for user parts that were enabled during
configuration.