Welltech Dialogic SS7 Protocols ISUP - Manual (Page 54)

Section 6 Interface to Application
54
6.6 Application Messages from ISUP
The following table lists all application messages (message type
ISP_MSG_RX_IND) sent by ISUP module to the user application:
Table 1. All Application Messages sent by the ISUP Module to the User Application
Value Primitive Message
type
Dec Hex
Use
Alerting indication ACM
CPG
6
44
0x06
0x2c
Indicates outgoing called party being
alerted.
Application transport
indication APM 65 0x41 Issued on receipt of an application
transport message.
Charge indication
(Generic) CRG 50 0x32 Carries charging information
Circuit seized
indication SZE 199 0xc7 Used for continuity checking and
indicates that a circuit has been seized
for an incoming call (but no address
information has yet been received).
Collection charging
indication MPM 201 0xc9 Used to carry charging information.
Confusion indication CFN 47 0x2f Indicates that a confusion message
has been received.
Continuity indication COT 5 0x05 Indicates whether the continuity test
succeeded.
End-to-end message
indication PAM 40 0x28 Conveys received end-to-end
message.
Facility confirmation FAA 32 0x20 Indicates that the remote party has
accepted the user to user service 3
request.
Facility indication FAR 31 0x1f Indicates that the remote party is
requesting user to user information
service 3 during the active phase of a
call.
Forward transfer
indication FOT 8 0x08 Indicates that a forward transfer
message has been received.
SAM 2 0x02 Subsequent address digits for overlap
signaling. Information indication
INF 4 0x04 Provides additional call information.
Identification
indication IDR 54 0x36 Used to request an action regarding
the MCID supplementary service.
Identification
confirmation IRS 55 0x37 Used to respond to the IDR message.
Loop back
acknowledgement
indication LPA 36 0x24 Indicates to the application that a
continuity check loop has been applied
to the circuit.
Loop prevention
indication LOP 64 0x40 Use with ECT supplementary service.