Receiving ISUP protocol messages

The following table shows the evntType/indType combinations returned when receiving ISUP protocol messages:

Message type

Mnemonic

indType

evntType

Address complete

ACM

EVTSITCNSTIND

ADDRCMPLT

Answer

ANM

EVTSITCONCFM

None

Application transport message

APM

EVTSITSTAIND

APPTRANSPORT

Blocking (not supported in BICC)

BLO

EVTSITSTAIND

CIRBLKREQ

Blocking acknowledgment (not supported in BICC)

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 acknowledgment

GRA

EVTSITSTAIND

CIRGRPRESACK

Circuit group unblocking

CGU

EVTSITSTAIND

CIRGRPUNBLKREQ

Circuit group unblocking acknowledgment

CGUA

EVTSITSTAIND

CIRGRPUNBLKRSP

Circuit reservation

CRM

EVTSITSTAIND

CIRRESERVE

Circuit reservation acknowledgment

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 (not supported in BICC)

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 (not supported by BICC)

LPA

EVTSITSTAIND

LOOPBCKACK

Network resource manager

NRM

EVTSITCNSTIND

NETRESMGR

Overload (not supported in BICC)

OLM

N/A

Handled automatically by ISUP task.

Pass-along (not supported in BICC)

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 (not supported in BICC)

UBL

EVTSITSTAIND

CIRUNBLKREQ

Unblocking acknowledgment (not supported in BICC)

UBA

EVTSITSTAIND

CIRUNBLKRSP

Unequipped circuit identification code

UCIC

EVTSITSTAIND

CIRUNEQPD

User part available (not supported in BICC)

UPA

N/A

Handled automatically by ISUP task.

User part test (not supported in BICC)

UPT

N/A

Handled automatically by ISUP task.

User-to-user information

USR

EVTSITDATIND