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Appendix B

Message/API Cross-Reference

: Introduction
: Sending ISUP Protocol Messages
: Receiving ISUP Protocol Messages

Introduction

This appendix describes the event initialization routines and API primitive combinations used to send and receive various ISUP protocol messages.

Sending ISUP Protocol Messages

The following table describes the event initialization routine/API primitive combinations used to send various ISUP protocol messages. When applicable, the value required for the evntType argument to the primitive is shown.

Message Type

Mnemonic

Event Initialization Routine

Primitive

Address complete

ACM

ISUPInitACM

ISUPConnectStatusReq
evntType = ADDRCMPLT

Answer

ANM

ISUPInitANM

ISUPConnectResp

Application Transport Message

APM

none

ISUPStatusReq
evntType = APPTRANSPORT

Blocking

BLO

none

ISUPStatusReq
evntType = CIRBLKREQ

Blocking acknowledgement

BLA

none

ISUPStatusReq
evntType = CIRBLKRSP

Call modification complete

CMC

none

ISUPConnectStatusReq
evntType = MODCMPLT

Call modification reject

CMRJ

none

ISUPConnectStatusReq
evntType = MODREJ

Call modification request

CMR

none

ISUPConnectStatusReq
evntType = MODIFY

Call progress

CPG

ISUPInitCPG

ISUPConnectStatusReq
evntType = PROGRESS

Charge information

CRG

none

Unsupported.

Circuit group blocking

CGB

none

ISUPStatusReq
evntType = CIRGRPBLKREQ

Circuit group blocking acknowledgment

CGBA

none

ISUPStatusReq
evntType = CIRGRPBLKRSP

Circuit group query

CQM

none

ISUPStatusReq
evntType = CIRGRPQRYREQ

Circuit group query response

CQR

none

Generated automatically by ISUP task.

Circuit group reset

GRS

none

ISUPStatusReq
evntType = CIRGRPRESREQ

Circuit group reset acknowledgement

GRA

none

Generated automatically by ISUP task.

Circuit group unblocking

CGU

none

ISUPStatusReq
evntType = CIRGRPUNBLKREQ

Circuit group unblocking acknowledgment

CGUA

none

ISUPStatusReq
evntType = CIRGRPUNBLKRSP

Circuit reservation

CRM

ISUPInitCRM

ISUPStatusReq
evntType = CIRRESERVE

Circuit reservation acknowledgement

CRA

none

ISUPStatusReq
evntType = CIRRESERVEACK

Circuit validation response

CVR

none

Generated automatically by ISUP task.

Circuit validation test

CVT

none

isupValidateCircuit
(Management API)

Confusion

CFN

none

Generated automatically by ISUP task.

Connect

CON

ISUPInitCON

ISUPConnectResp

Continuity

COT

ISUPInitCOT

ISUPStatusReq
evntType = CONTREP

Continuity check request

CCR

none

ISUPStatusReq
evntType = CONTCHK

Delayed release

DRS

none

Unsupported.

Exit

EXM

none

Generated automatically by ISUP task.

Facility

FAC

ISUPInitFAC

ISUPFacilityReq
evntType = FACILITY

Facility accepted

FAA

ISUPInitFAA

ISUPFacilityResp
evntType = FACILITYACC

Facility reject

FRJ

ISUPInitFRJ

ISUPFacilityResp
evntType = FACILITYREJ

Facility request

FAR

ISUPInitFAR

ISUPFacilityReq
evntType = TACILITYREQ

Facility deactivate

FAR

ISUPInitFAD

ISUPFacilityReq
evntType = FACILITYDEACT

Facility Information

FAR

ISUPInitFAI

ISUPFacilityReq
evntType = FACILITYINFO

Forward transfer

FOT

ISUPInitFOT

ISUPConnectStatusReq
evntType = FRWDTRSFR

Identification request

IDM

none

ISUPConnectStatusReq
evntType = IDENTRSP

Identification response

IDR

none

ISUPConnectStatusReq
evntType = IDENTREQ

Information

INF

ISUPInitINF

ISUPConnectStatusReq
evntType = INFORMATION

Information request

INR

ISUPInitINR

ISUPConnectStatusReq
evntType = INFORMATREQ

Initial address

IAM

ISUPInitIAM

ISUPConnectReq

Loop Prevention

LOP

none

ISUPStatusReq
evntType = LOOPPREVENTION

Loopback acknowledgement

LPA

none

ISUPStatusReq
evntType = LOOPBCKACK

Network Resource Manager

NRM

none

ISUPConnectStatusReq
evntType = NETRESMGR

Overload

OLM

none

Generated automatically by ISUP task.

Pass-along

PAM

ISUPDataReq

Pre-Release Information

PRI

none

ISUPStatusReq
evntType = PRERELEASE

Release

REL

ISUPInitREL

ISUPReleaseReq

Release complete

RLC

none

ISUPReleaseResp

Reset circuit

RSC

none

ISUPStatusReq
evntType = CIRRESREQ

Resume

RES

ISUPInitRES

ISUPResumeReq

Subsequent address

SAM

ISUPInitSAM

ISUPConnectStatusReq
evntType = SUBSADDR

Suspend

SUS

ISUPInitSUS

ISUPSuspendReq

Unblocking

UBL

none

ISUPStatusReq
evntType = CIRUNBLKREQ

Unblocking acknowledgement

UBA

none

ISUPStatusReq
evntType = CIRUNBLKRSP

Unequipped circuit identification code

UCIC

none

Generated automatically by ISUP task.

User part available

UPA

none

Generated automatically by ISUP task.

User part test

UPT

none

Generated automatically by ISUP task.

User-to-user information

USR

N/A?

ISUPDataReq

Message Type	Mnemonic	Event Initialization Routine	Primitive
Address complete	ACM	ISUPInitACM	ISUPConnectStatusReq evntType = ADDRCMPLT
Answer	ANM	ISUPInitANM	ISUPConnectResp
Application Transport Message	APM	none	ISUPStatusReq evntType = APPTRANSPORT
Blocking	BLO	none	ISUPStatusReq evntType = CIRBLKREQ
Blocking acknowledgement	BLA	none	ISUPStatusReq evntType = CIRBLKRSP
Call modification complete	CMC	none	ISUPConnectStatusReq evntType = MODCMPLT
Call modification reject	CMRJ	none	ISUPConnectStatusReq evntType = MODREJ
Call modification request	CMR	none	ISUPConnectStatusReq evntType = MODIFY
Call progress	CPG	ISUPInitCPG	ISUPConnectStatusReq evntType = PROGRESS
Charge information	CRG	none	Unsupported.
Circuit group blocking	CGB	none	ISUPStatusReq evntType = CIRGRPBLKREQ
Circuit group blocking acknowledgment	CGBA	none	ISUPStatusReq evntType = CIRGRPBLKRSP
Circuit group query	CQM	none	ISUPStatusReq evntType = CIRGRPQRYREQ
Circuit group query response	CQR	none	Generated automatically by ISUP task.
Circuit group reset	GRS	none	ISUPStatusReq evntType = CIRGRPRESREQ
Circuit group reset acknowledgement	GRA	none	Generated automatically by ISUP task.
Circuit group unblocking	CGU	none	ISUPStatusReq evntType = CIRGRPUNBLKREQ
Circuit group unblocking acknowledgment	CGUA	none	ISUPStatusReq evntType = CIRGRPUNBLKRSP
Circuit reservation	CRM	ISUPInitCRM	ISUPStatusReq evntType = CIRRESERVE
Circuit reservation acknowledgement	CRA	none	ISUPStatusReq evntType = CIRRESERVEACK
Circuit validation response	CVR	none	Generated automatically by ISUP task.
Circuit validation test	CVT	none	isupValidateCircuit (Management API)
Confusion	CFN	none	Generated automatically by ISUP task.
Connect	CON	ISUPInitCON	ISUPConnectResp
Continuity	COT	ISUPInitCOT	ISUPStatusReq evntType = CONTREP
Continuity check request	CCR	none	ISUPStatusReq evntType = CONTCHK
Delayed release	DRS	none	Unsupported.
Exit	EXM	none	Generated automatically by ISUP task.
Facility	FAC	ISUPInitFAC	ISUPFacilityReq evntType = FACILITY
Facility accepted	FAA	ISUPInitFAA	ISUPFacilityResp evntType = FACILITYACC
Facility reject	FRJ	ISUPInitFRJ	ISUPFacilityResp evntType = FACILITYREJ
Facility request	FAR	ISUPInitFAR	ISUPFacilityReq evntType = TACILITYREQ
Facility deactivate	FAR	ISUPInitFAD	ISUPFacilityReq evntType = FACILITYDEACT
Facility Information	FAR	ISUPInitFAI	ISUPFacilityReq evntType = FACILITYINFO
Forward transfer	FOT	ISUPInitFOT	ISUPConnectStatusReq evntType = FRWDTRSFR
Identification request	IDM	none	ISUPConnectStatusReq evntType = IDENTRSP
Identification response	IDR	none	ISUPConnectStatusReq evntType = IDENTREQ
Information	INF	ISUPInitINF	ISUPConnectStatusReq evntType = INFORMATION
Information request	INR	ISUPInitINR	ISUPConnectStatusReq evntType = INFORMATREQ
Initial address	IAM	ISUPInitIAM	ISUPConnectReq
Loop Prevention	LOP	none	ISUPStatusReq evntType = LOOPPREVENTION
Loopback acknowledgement	LPA	none	ISUPStatusReq evntType = LOOPBCKACK
Network Resource Manager	NRM	none	ISUPConnectStatusReq evntType = NETRESMGR
Overload	OLM	none	Generated automatically by ISUP task.
Pass-along	PAM		ISUPDataReq
Pre-Release Information	PRI	none	ISUPStatusReq evntType = PRERELEASE
Release	REL	ISUPInitREL	ISUPReleaseReq
Release complete	RLC	none	ISUPReleaseResp
Reset circuit	RSC	none	ISUPStatusReq evntType = CIRRESREQ
Resume	RES	ISUPInitRES	ISUPResumeReq
Subsequent address	SAM	ISUPInitSAM	ISUPConnectStatusReq evntType = SUBSADDR
Suspend	SUS	ISUPInitSUS	ISUPSuspendReq
Unblocking	UBL	none	ISUPStatusReq evntType = CIRUNBLKREQ
Unblocking acknowledgement	UBA	none	ISUPStatusReq evntType = CIRUNBLKRSP
Unequipped circuit identification code	UCIC	none	Generated automatically by ISUP task.
User part available	UPA	none	Generated automatically by ISUP task.
User part test	UPT	none	Generated automatically by ISUP task.
User-to-user information	USR	N/A?	ISUPDataReq

Receiving ISUP Protocol Messages

evntType/indType combinations seen when receiving ISUP protocol messages.

Message Type

Mnemonic

indType

evntType

Address complete

ACM

EVTSITCNSTIND

ADDRCMPLT

Answer

ANM

EVTSITCONCFM

N/A?

Application transport message

APM

EVTSITSTAIND

APPTRANSPORT

Blocking

BLO

EVTSITSTAIND

CIRBLKREQ

Blocking acknowledgement

BLA

EVTSITSTAIND

CIRBLKRSP

Call modification complete

CMC

EVTSITCNSTIND

MODCMPLT

Call modification reject

CMRJ

EVTSITCNSTIND

MODREJ

Call modification request

CMR

EVTSITCNSTIND

MODIFY

Call progress

CPG

EVTSITCNSTIND

PROGRESS

Charge information

CRG

N/A

Unsupported.

Circuit group blocking

CGB

EVTSITSTAIND

CIRGRPBLKREQ

Circuit group blocking acknowledgment

CGBA

EVTSITSTAIND

CIRGRPBLKRSP

Circuit group query

CQM

N/A

Handled automatically by ISUP task.

Circuit group query response

CQR

EVTSITSTAIND

CIRGRPQRYRSP

Circuit group reset

GRS

EVTSITSTAIND

CIRGRPRESREQ

Circuit group reset acknowledgement

GRA

EVTSITSTAIND

CIRGRPRESACK

Circuit group unblocking

CGU

EVTSITSTAIND

CIRGRPUNBLKREQ

Circuit group unblocking acknowledgment

CGUA

EVTSITSTAIND

CIRGRPUNBLKRSP

Circuit reservation

CRM

EVTSITSTAIND

CIRRESERVE

Circuit reservation ack

CRA

EVTSITSTAIND

CIRRESERVEACK

Circuit validation response

CVR

N/A

Handled automatically by ISUP task.

Circuit validation test

CVT

N/A

Handled automatically by ISUP task.

Confusion

CFN

EVTSITSTAIND

CONFUSION

Connect

CON

EVTSITCONCFM

Continuity

COT

EVTSITSTAIND

CONTREP

Continuity check request

CCR

EVTSITSTAIND

CONTCHK

Delayed release

DRS

N/A

Unsupported.

Exit

EXM

EVTSITCNSTIND

EXIT

Facility

FAC

EVTSITFACIND

FACILITY

Facility accepted

FAA

EVTSITFACIND

FACILITYACC

Facility reject

FRJ

EVTSITFACIND

FACILITYREJ

Facility request

FAR

EVTSITFACIND

FACILITYEQ

Facility deactivate

FAD

EVTSITFACIND

FACILITYDEACT

Facility information

FAI

EVTSITFACIND

FACILITYINFO

Forward transfer

FOT

EVTSITCNSTIND

FRWDTRSFR

Identification request

IDM

EVTSITCNSTIND

IDENTRSP

Identification response

IDR

EVTSITCNSTIND

IDENTREQ

Information

INF

EVTSITCNSTIND

INFORMATION

Information request

INR

EVTSITCNSTIND

INFORMATREQ

Initial address

IAM

EVTSITCONIND

Loop prevention

LOP

EVTSITSTAIND

LOOPPREVENTION

Loopback acknowledgment

LPA

EVTSITSTAIND

LOOPBCKACK

Network Resource Manager

NRM

EVTSITCNSTIND

NETRESMGR

Overload

OLM

N/A

Handled automatically by ISUP task.

Pass-along

PAM

EVTSITDATIND

Release

REL

EVTSITRELIND

Release complete

RLC

EVTSITRELCFM

Reset circuit

RSC

EVTSITSTAIND

CIRRESREQ

Resume

RES

EVTSITRESMIND

Subsequent address

SAM

EVTSITCNSTIND

SUBSADDR

Suspend

SUS

EVTSITSUSPIND

Unblocking

UBL

EVTSITSTAIND

CIRUNBLKREQ

Unblocking ack

UBA

EVTSITSTAIND

CIRUNBLKRSP

Unequipped circuit identification code

UCIC

EVTSITSTAIND

CIRUNEQPD

User part available

UPA

N/A

Handled automatically by ISUP task.

User part test

UPT

N/A

Handled automatically by ISUP task.

User-to-user information

USR

EVTSITDATIND

Message Type	Mnemonic	indType	evntType
Address complete	ACM	EVTSITCNSTIND	ADDRCMPLT
Answer	ANM	EVTSITCONCFM	N/A?
Application transport message	APM	EVTSITSTAIND	APPTRANSPORT
Blocking	BLO	EVTSITSTAIND	CIRBLKREQ
Blocking acknowledgement	BLA	EVTSITSTAIND	CIRBLKRSP
Call modification complete	CMC	EVTSITCNSTIND	MODCMPLT
Call modification reject	CMRJ	EVTSITCNSTIND	MODREJ
Call modification request	CMR	EVTSITCNSTIND	MODIFY
Call progress	CPG	EVTSITCNSTIND	PROGRESS
Charge information	CRG	N/A	Unsupported.
Circuit group blocking	CGB	EVTSITSTAIND	CIRGRPBLKREQ
Circuit group blocking acknowledgment	CGBA	EVTSITSTAIND	CIRGRPBLKRSP
Circuit group query	CQM	N/A	Handled automatically by ISUP task.
Circuit group query response	CQR	EVTSITSTAIND	CIRGRPQRYRSP
Circuit group reset	GRS	EVTSITSTAIND	CIRGRPRESREQ
Circuit group reset acknowledgement	GRA	EVTSITSTAIND	CIRGRPRESACK
Circuit group unblocking	CGU	EVTSITSTAIND	CIRGRPUNBLKREQ
Circuit group unblocking acknowledgment	CGUA	EVTSITSTAIND	CIRGRPUNBLKRSP
Circuit reservation	CRM	EVTSITSTAIND	CIRRESERVE
Circuit reservation ack	CRA	EVTSITSTAIND	CIRRESERVEACK
Circuit validation response	CVR	N/A	Handled automatically by ISUP task.
Circuit validation test	CVT	N/A	Handled automatically by ISUP task.
Confusion	CFN	EVTSITSTAIND	CONFUSION
Connect	CON	EVTSITCONCFM
Continuity	COT	EVTSITSTAIND	CONTREP
Continuity check request	CCR	EVTSITSTAIND	CONTCHK
Delayed release	DRS	N/A	Unsupported.
Exit	EXM	EVTSITCNSTIND	EXIT
Facility	FAC	EVTSITFACIND	FACILITY
Facility accepted	FAA	EVTSITFACIND	FACILITYACC
Facility reject	FRJ	EVTSITFACIND	FACILITYREJ
Facility request	FAR	EVTSITFACIND	FACILITYEQ
Facility deactivate	FAD	EVTSITFACIND	FACILITYDEACT
Facility information	FAI	EVTSITFACIND	FACILITYINFO
Forward transfer	FOT	EVTSITCNSTIND	FRWDTRSFR
Identification request	IDM	EVTSITCNSTIND	IDENTRSP
Identification response	IDR	EVTSITCNSTIND	IDENTREQ
Information	INF	EVTSITCNSTIND	INFORMATION
Information request	INR	EVTSITCNSTIND	INFORMATREQ
Initial address	IAM	EVTSITCONIND
Loop prevention	LOP	EVTSITSTAIND	LOOPPREVENTION
Loopback acknowledgment	LPA	EVTSITSTAIND	LOOPBCKACK
Network Resource Manager	NRM	EVTSITCNSTIND	NETRESMGR
Overload	OLM	N/A	Handled automatically by ISUP task.
Pass-along	PAM	EVTSITDATIND
Release	REL	EVTSITRELIND
Release complete	RLC	EVTSITRELCFM
Reset circuit	RSC	EVTSITSTAIND	CIRRESREQ
Resume	RES	EVTSITRESMIND
Subsequent address	SAM	EVTSITCNSTIND	SUBSADDR
Suspend	SUS	EVTSITSUSPIND
Unblocking	UBL	EVTSITSTAIND	CIRUNBLKREQ
Unblocking ack	UBA	EVTSITSTAIND	CIRUNBLKRSP
Unequipped circuit identification code	UCIC	EVTSITSTAIND	CIRUNEQPD
User part available	UPA	N/A	Handled automatically by ISUP task.
User part test	UPT	N/A	Handled automatically by ISUP task.
User-to-user information	USR	EVTSITDATIND

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