Ss7 Pocket Guide

SS7PocketGuide

Tekelec is a leading developer of telecommunicationssignaling infrastructure, soft switches, diagnostic solutions, and service applications. The company’s highly reliable solutions enable telecommunications carriers and equipment suppliers to provision and test avariety of revenue-generating services featuring voiceand data technologies. Tekelec’s innovative solutions are widely deployed in traditional and next-generationwireline, wireless, and IP voice/data communicationsnetworks around the world

Founded in 1979, Tekelec’s corporate headquarters arelocated in Calabasas, California, with operations inMorrisville, North Carolina; Richardson, Texas; Staines, United Kingdom; and Tokyo, Japan.

For more information please call 800.835.3532 or+1.919.460.5500

Visit our web site at http://www.tekelec.com

- 1 -

TABLE OF CONTENTS

Format of SS7 SU Types ..........................................2SS7 LSSU Format......................................................2SIO Field....................................................................3Routing Label ............................................................3Format of SPC (ANSI) ..............................................3Format of ISPC (ITU)................................................4MTP Management Messages Structure ....................4SNM Heading Code Table ........................................4SNT Heading Code Table ..........................................5MSU Signalling Message Structure ..........................5SS7 Function Levels ..................................................5SNM/SNT Heading Code Table Abbreviations ........6General ISUP Message Format:

Mandatory Parameter Section ..............................7General ISUP Message Format:

Pointer Section ....................................................8General ISUP Message Format:

Optional Portion ..................................................8SCCP Messages and Protocol Classes Table ............9SCCP Messages Parameters Table ............................9SCCP Parameter Name Codes Table ......................10General ISUP CIC Field ..........................................10ISUP Mandatory/Optional Parameters Table

(ANSI) ................................................................11ISUP Mandatory/Optional Parameters Table

(ITU White Book) ..............................................13ISUP Message Type Table ......................................15ISUP Parameter Code Table ....................................16TUP Heading Code Table ........................................18TUP Heading Code Table Abbreviations ................19Glossary of SS7 Acronyms......................................20SS7 References ........................................................21

- 2 -

Format of SS7 SU Types

ClosingFlag

FCS/CK LIFIB

BIB

FSN BSN OpeningFlag

Level 2

ClosingFlag

FCS/CK SF LIFIB

BIB

FSN BSN OpeningFlag

Level 2Level 3Level 2

ClosingFlag

FCS/CK SIF LIFIB

BIB

FSN BSN OpeningFlag


SIO

Above

8

8

8 16

16

16

2

8 or 16

8n,n>2

6 1 7 1 7 8

2 6 1 7 1 7 8

8 2 6 1 7 1 7 8

MSU(LI>2)

LSSU(LI=1,2)

FISU(LI=0)

*

*

*

*First bit transmittedClosing Flag = International

SS7 LSSU Format

ClosingFlag

FCS/CK SF LIFIB

BIB

FSN BSN OpeningFlag


Spare StatusIndications

CBA Status Indication

"O"ut of alignment"N"ormal alignment"E"mergency alignment"O"ut of "S"ervice"P"rocessor "O"utage"B"usy

0 0 00 0 10 1 00 1 11 0 01 0 1

*

*

*First Bit Transmitted

- 3 -

SIO Field

ClosingFlag

FCS/CK SIF LIFIB

BIB

FSN BSN OpeningFlag


SIO

Sub-ServiceField

ServiceIndicator

DC

0 00 11 01 1

X XX XX XX X

BA

International networkSpareNational networkReserved for national use

D C B A

0 0 0 00 0 0 1

0 0 1 10 1 0 00 1 0 10 1 1 00 1 1 1Others

SNMSNT

0 0 1 0 SNTSCCPTUPISUPDUP (*3)DUP (*4)

(*1) (*2)

Spare

*

Above

*

XX ANSI Priority*1 Regular MSGS*2 Special MSGS*3 Call and Circuit related*4 Facility registration and cancellation

Routing Label

ClosingFlag

FCS/CK SIF LIFIB

BIB

FSN BSN OpeningFlag


Management or SignallingInformation

Routing Label

SIO

Above

CIC OPC DPC SLC OPC DPC

SCCPISUPITU TUP

ITU: ITU:ANSI/Bellcore:

12 14 14 Bits 4 14 14 Bits 5 24 24 Bits

*


Format of SPC (ANSI)

HGFEDCBA HGFEDCBA

NetworkIdentifier

NetworkCluster

NetworkClusterMember

8 8 8

SPC

DPC or OPC

*


HGFEDCBA

- 4 -

Format of ISPC (ITU)

M M L KJIHGFED

ZoneIdentification

Area/NetworkIdentification

SignallingPoint

Identification

3 8 3

ISPC

DPC or OPC

*


C B A

SANC

MTP Management Messages Structure

ClosingFlag

FCS/CK SIF LIFIB

BIB

FSN BSN OpeningFlag


MTP Management Information Routing Label

SIO

InformationContent

H1MSG Type

H0MSG Group

SNM Heading Code TableSNT Heading Code Table

MTPLevel 3

*


SNM Heading Code Table

0000000100100011010001010110011110001001101010111100110111101111

MSGGroup 0000 0001 0010 0011 0100 0101 0110 0111 1000 Other

H0

H1

CHMECMFCMTFMRSMMIMTRMDLM

SPAREUFC

COOECORCTTFPRSPLINTRADLC

UPU

COAECATFCTCP*RSRLUNTRW*CSS

TFRRCPLIA

ENS

TCRRCRLUA

CNP

CBD

TFA

LID

CBA

TCA*

LFU LLI LRI

LLI = LLT in ITULRI = LRT in ITU*ANSI only

(See Abbreviations List on page 6)

- 5 -

SNT Heading Code Table

MSGGroup

SLTM

SLTA

H0

0001

0010

0001Test

SLTM

SLTA

H1

MSU Signalling Message Structure

ClosingFlag

FCS/CK SIF LIFIB

BIB

FSN BSN OpeningFlag


Signalling Information Routing Label

SIO

TUP Message Information Elements H1

ISUP Message Information Elements Message Type

MessageType

MandatoryVariable Part

User Message/Data

Transaction PortionComponent Portion

Component n Component 1

TUP

ISUP

SCCP

TCAP....

*

CIC Code


HO SLS

OptionalPart

MandatoryFixed Part

SS7 Function Levels

Users of SS7

OMAP

TCAP

SCCPLevel 4

ISUPLevel 4

TUPLevel 4

MTP (Levels 1 - 3)

Signalling Link FunctionsLevel 2

Signalling Data Link FunctionsLevel 1

Signalling Network FunctionsLevel 3

TCAP

ISP

OSILayer

7

4-6

1-3

ASES

TC

NSP

(See Abbreviations List on page 6)

- 6 -

MSG Message GroupCBA Changeback-acknowledgment signalCBD Changeback-declaration signalCHM Changeover and changeback messagesCNP Connection-not-possible signalCNS Connection-not-successful signalCOA Changeover-acknowledgment signalCOO Changeover-order signalCSS Connection successful signalDLC Signalling-data-link-connection-order signalDLM Signalling-data-link-connection-messagesECA Emergency-changeover-acknowledgment signalECM Emergency-changeover messagesECO Emergency-changeover-order signalFCM Signalling-traffic-flow control messagesLFU Link forced uninhibit messageLIA Link inhibit acknowledgment messageLID Link inhibit denied messageLIN Link inhibit messageLLI Link local inhibit test signalLRI Link remote inhibit test signalLUA Link uninhibit acknowledgmentLUN Link uninhibit messageMIM Management inhibiting messagesRCP Signalling-route-set-test cluster-prohibited signalRCR Signalling-route-set-test cluster-restricted signalRCT Signalling-route-set-congestion-test signalRSM Signalling-route-set-test messagesRSP Signalling-route-set-test prohibited signalRSR Signalling-route-set-test restricted signalSLTA Signalling Link Test AcknowledgmentSLTM Signalling Link Test MessageTCA Transfer-cluster-allowed signalTCP Transfer-cluster-prohibited signalTCR Transfer-cluster-restricted signalTFA Transfer-allowed signalTFC Transfer-controlled signalTFM Transfer-prohibited, transfer-allowed, transfer-

restricted messagesTFP Transfer-prohibited signalTFR Transfer-restricted signalTRA Traffic restart allowed signalTRM Traffic restart messagesTRW Traffic restart waiting signalUFC MTP user flow control messagesUPU User part unavailable signal

SNM/SNT Heading Code Table Abbreviations

- 7 -

General ISUP Message Format:Mandatory Parameter Section

*

Optional PartThe length of the Mandatory Parameter isdependent on the type of the parameter.**For ISUP only.

ClosingFlag

FCS/CK SIF LIFIB

BIB

FSN BSN OpeningFlag


Signaling Information Routing Label

SIO

Above

Message Type CodeCIC**

Mandatory FixedPart

Pointers for theMandatory Variable Part

Pointer for the Startof Optional Part


MandatoryParameter A

MandatoryParameter B

----------------

MandatoryParameter Z


- 8 -

General ISUP Message Format:Pointer Section

*

Optional Part **For ISUP only.*First Bit Transmitted

ClosingFlag

FCS/CK SIF LIFIB

BIB

FSN BSN OpeningFlag



SIO

Above


Mandatory FixedPart




Pointer toParameter 1

Pointer toParameter 2

----------------

Pointer toParameter m

Parameter 1Content

Length ofParameter 2

----------------

Parameter 2Content

Length ofParameter m


Parameter mContent

----------------

General ISUP Message Format:Optional Portion

*

Optional Part

**For ISUP only.*First Bit Transmitted

ClosingFlag

FCS/CK SIF LIFIB

BIB

FSN BSN OpeningFlag



SIO

Above


Mandatory FixedPart




----------------

Parameter 1Content

OptionalParameter 1


Parameter 2Content

OptionalParameter 2


Parameter mContent

OptionalParameter m

Length ofParameter m

------------

End of OptionalParameters

- 9 -

SCCP Messages and Protocol Classes Table

0 0 0 0 0 0 0 1

0 0 0 0 0 0 1 0

0 0 0 0 0 0 1 1

0 0 0 0 0 1 0 0

0 0 0 0 0 1 0 1

0 0 0 0 0 1 1 0

0 0 0 0 0 1 1 1

0 0 0 0 1 0 0 0

0 0 0 0 1 0 0 1

0 0 0 0 1 0 1 0

0 0 0 0 1 0 1 1

0 0 0 0 1 1 0 0

0 0 0 0 1 1 0 1

0 0 0 0 1 1 1 0

0 0 0 0 1 1 1 1

0 0 0 1 0 0 0 0

0 0 0 1 0 0 0 1

0 0 0 1 0 0 1 0

Connection Request

Connection Confirm

Connection Refused

Released

Release Complete

Data form 1

Data form 2

Data Acknowledgment

Unitdata

Unitdata Service

Expedited Data

Expedited Data Ack.

Reset Request

Reset Confirm

Error

Inactivity Test

Extended Unitdata*

Extended Unitdata Service*

CR

CC

CREF

RLSD

RLC

DT1

DT2

AK

UDT

UDTS

ED

EA

RSR

RSC

ERR

IT

XUDT

XUDTS

X X

X X

X X

X X

X X

X

X

X

X X

X X

X

X

X

X

X X

X X

Protocol Class

0 1 2 3Message Type Code

X

X

SCCP Messages Parameters Table

m

m

m

o

m

o

o

o

o

o

Messages/ParameterField

Message Type Code

Destination local ref.

Source local ref.

Called party address

Calling party address

Protocol Class

Segmenting/Reassembling

Receive Sequence No.

Sequencing/Segmenting

Credit

Release cause

Return cause

Reset cause

Error cause

Data

Refusal cause

End of opt. parameters

SCCP Hop Counter

ISNI

CR CC CREF RLSD RLC DT1 DT2 AK ED EA RSR RSC ERR IT UDT XUDT* UDTS XUDTS*

m

m

m

o

m

o

o

o

m

m

o

o

m

o

m

m

m

m

o

o

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m

m1

m1

m

m

m

m

m

m

m

m

m

m

o

m

o

m

m

m

m

m

m

m

m

m

m

o

m

o

* ANSI only

1) Information in these fields is ignored if the protocol class parameter indicates class 2* ANSI only

- 10 -

SCCP Parameter Name Codes Table

End of optional parameters

Destinations local reference

Source local reference

Called party address

Calling party address

Protocol class

Segmenting/reassembling

Receive sequence number

Sequencing/segmenting

Credit

Release cause

Return cause

Reset cause

Error cause

Refusal cause

User data

SCCP hop counter*

ISNI*

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0000

0001

1111

0000

0001

0010

0 0 11

0100

0101

0 11 0

0 111

1000

1001

1010

1 0 11

11 0 0

11 0 1

111 0

1111

0000

1010

Parameter Name Binary Code

8765 4321

* ANSI only

General ISUP CIC Field

ClosingFlag

FCS/CK SIF LIFIB

BIB

FSN BSN OpeningFlag


ISUP Message InformationElement

CIC Code

SIO

Above

*

Message Type

CIC Least Significant

CIC MostSignificant

Spare

8 7 6 5 4 3 2 1


RoutingLabel

- 11 -

ISU

PM

anda

tory

/Opt

iona

l Par

amet

ers

Tabl

e (A

NSI

)

PAR

AM

ETE

R F

IELD

IA

M

INR

IN

F C

RA

CR

M

CO

T A

CM

E

XM

A

NM

C

PG

F

OT

RE

L C

FN

CV

R

RLC

R

SC

U

BL

U

BA

RE

S

CG

U

CG

UA

GR

A

CQ

RLP

AU

CIC

CV

TC

CR

BLO

BLA

SU

SC

GB

CG

BA

Mes

sage

Typ

e

Acc

ess

Tran

spor

t

Aut

omat

ic C

onge

stio

n Le

vel

Bac

kwar

d C

all I

ndic

ator

s

Bus

ines

s G

roup

Cal

l Ref

eren

ce

Cal

led

Par

ty N

umbe

r

Cha

rge

Num

ber

Cal

ling

Par

ty N

umbe

r

Cal

ling

Par

ty's

Cat

egor

y

Car

rier I

dent

ifica

tion

Car

rier S

elec

tion

Info

rmat

ion

Cau

se In

dica

tors

Circ

uit

Gro

up A

ssig

nmen

t Map

Circ

uit G

roup

Cha

ract

eris

tic In

dica

tors

Circ

uit G

roup

Sup

ervi

sion

Mes

sage

Typ

e In

d

Circ

uit I

nden

tific

atio

n N

ame

Circ

uit S

tate

Indi

cato

r

Circ

uit V

alid

atio

n R

espo

nse

Ind

CLL

I Cod

e

Con

nect

ion

Req

uest

Con

tinui

ty In

dica

tors

Egr

ess

Ser

vice

Eve

nt In

form

atio

n

Forw

ard

Cal

l Ind

icat

ors

Gen

eric

Add

ress

Gen

eric

Dig

its

M O

MM O

M O

M O

M O

M O O

MM

MM

MM

MM

MM

MM

MM

MM

MO

O

OO

OO

O

OO

OO

OO

OO

M OO

O

OO

MO

O

OO

MM

M MO

MM

O

O

GR

S

CQ

M

M

OO

O

M

FAC

M

OO

M O OO O

OO

O

M

- 12 -

ISU

PM

anda

tory

/Opt

iona

l Par

amet

ers

Tabl

e (A

NSI

)C

onti

nued

PAR

AM

ETE

R F

IELD

IA

M

INR

IN

F C

RA

CR

M

CO

T A

CM

E

XM

A

NM

C

PG

F

OT

RE

L C

FN

CV

R

RLC

R

SC

U

BL

U

BA

RE

S

CG

U

CG

UA

GR

A

CQ

R

FA

CLP

AU

CIC

CV

TC

CR

BLO

BLA

SU

SC

GB

CG

BA

Gen

eric

Nam

e

Hop

Cou

nter

Info

rmat

ion

Indi

cato

rs

Info

rmat

ion

Req

uest

Indi

cato

rs

Juris

dict

ion

Info

rmat

ion

Nat

ure

of C

onne

ctio

n In

dica

tors

Net

wor

k Tr

ansp

ort

Not

ifica

tion

Indi

cato

r

Orig

inal

Cal

led

Num

ber

Ope

rato

r Ser

vice

s In

form

atio

n

Opt

. Bac

kwar

d C

all I

ndic

ator

s

Orig

inat

ing

Line

Info

rmat

ion

Out

goin

g Tr

unk

Gro

up N

umbe

r

Pre

cede

nce

Ran

ge a

nd S

tatu

s

Red

irect

ion

Info

rmat

ion

Red

irect

ing

Num

ber

Rem

ote

Ope

ratio

ns

Ser

vice

Act

ivat

ion

Ser

vice

Cod

e

Spe

cial

Pro

cess

ing

Req

uest

Sus

pend

/Res

ume

Indi

cato

rs

Tran

sact

ion

Req

uest

Tran

sit N

etw

ork

Sel

ectio

n

Tran

smis

sion

Med

ium

Use

d

Use

r Ser

vice

Info

rmat

ion

Use

r Ser

vice

Info

rmat

ion

Prim

e

Use

r-to

-Use

r Ind

icat

ors

Use

r-to

-Use

r Inf

orm

atio

n

M

M

O O M O O O O O O O O O O O O O O O

M O

M O O O

O O O O O O O O O O

O O O O O O O O

O O O O O O O O O O

O

MM

MM

GR

S

CQ

M

OO

O O

OO

- 13 -

ISU

PM

anda

tory

/Opt

iona

l Par

amet

ers

Tabl

e (I

TU

Whi

te B

ook)

Mes

sage

IAM

SA

MIN

INC

OT

AC

MC

OC

PA

NM

FO

TR

ER

LC

CR

SLP

A

BLO

UB

LO

L

BLA

UB

AU

CI

SU

RE

CF

CG

CG

CG

BC

GU

CQ

GR

GR

CQ

FAA

FAR

FR

FAC

IDIR

NR

SG

PAM

US

UPA

UP

PA

RA

ME

TE

R F

IELD

Mes

sage

Typ

eF

FF

FF

FF

FF

FF

FF

FF

FF

FF

FF

FF

FF

FF

FF

FF

Acc

ess

Del

iver

y In

form

atio

nO

OO

OO

Acc

ess

Tran

spor

tO

OO

OO

OO

OO

Aut

omat

ic C

onge

stio

n Le

vel

OB

ackw

ard

Cal

l Ind

icat

ors

FF

OO

Cal

l Div

ersi

on In

form

atio

nO

OC

all H

isto

ry In

form

atio

nO

OC

all R

efer

ence

OO

OO

OO

OO

OO

Cal

led

Par

ty N

umbe

rV

Cal

ling

Par

ty N

umbe

rO

OO

Cal

ling

Par

ty's

Cat

egor

yF

OC

ause

Indi

cato

rsO

OV

OV

VC

ircui

t Gro

up S

uper

visi

on M

essa

ge T

ype

Ind.

FF

Circ

uit S

tate

Indi

cato

rV

CU

G In

terlo

ck C

ode

OC

onne

cted

Num

ber

OO

Con

nect

ion

Req

uest

OO

OC

ontin

uity

Indi

cato

rsF

Ech

o C

ontr

ol In

form

atio

nO

OO

OE

nd o

f Opt

iona

l Par

amet

ers

OO

OO

OO

OO

OO

OO

OO

OO

OO

OO

O O

Eve

nt In

form

atio

nF

Faci

lity

Indi

cato

rF

FF

orw

ard

Cal

l Ind

icat

orF

Gen

eric

Dig

itO

OG

ener

ic N

otifi

catio

n In

d.O

OO

OO

OG

ener

ic N

umbe

rO

OO

OO

Gen

eric

Ref

eren

ceO

Info

rmat

ion

Indi

cato

rsF

Info

rmat

ion

Req

uest

Indi

cato

rsF

F =

Man

dato

ry f

ixed

leng

th p

aram

eter

V =

Man

dato

ry v

aria

ble

leng

th p

aram

eter

O =

Opt

iona

l par

amet

er,

fixed

or

varia

ble

leng

th

- 14 -

ISU

PM

anda

tory

/Opt

iona

l Par

amet

ers

Tabl

e (I

TU

Whi

te B

ook)

Con

tinu

ed

Mes

sage

IAM

SA

MIN

INC

OT

AC

MC

OC

PA

NM

FO

TR

ER

LC

CR

SLP

A

BLO

UB

LO

L

BLA

UB

AU

CI

SU

RE

CF

CG

CG

CG

BC

GU

CQ

GR

GR

CQ

FAA

FAR

FR

FAC

IDIR

NR

SG

PAM

US

UPA

UP

PA

RA

ME

TE

R F

IELD

MC

ID R

espo

nse

Indi

cato

rO

MC

ID R

eque

st In

dica

tors

OM

LPP

Pre

cede

nce

ON

atur

e of

Con

nect

ion

Indi

cato

rsF

Net

wor

k S

peci

fic F

acili

tyO

OO

OO

OO

OO

ptio

nal B

ackw

ard

Cal

l Ind

icat

ors

OO

OO

Opt

iona

l For

war

d C

all I

ndic

ator

sO

Orig

inal

Cal

led

Num

ber

OO

rigin

atin

g IS

C P

oint

Cod

eO

Par

amet

er C

ompa

tibili

ty In

form

atio

nO

OO

OO

OO

OO

OO

OO

OP

ropa

gatio

n D

elay

Cou

nter

OR

ange

and

Sta

tus

VV

VV

Red

irect

ion

Info

rmat

ion

OO

Red

irect

ing

Num

ber

OR

edire

ctio

n N

umbe

rO

OO

OO

Red

irect

ion

Num

ber

Res

tr.O

OO

OO

Rem

ote

Ope

ratio

nsO

OO

OO

OS

ervi

ce A

ctiv

atio

nO

OO

OO

OS

igna

ling

Poi

nt C

ode

OS

ubse

quen

t Num

ber

VS

uspe

nd/R

esum

e In

dica

tors

FTr

ansi

t Net

wor

k S

elec

tion

OTr

ansm

issi

on M

ediu

m R

equi

rem

ent

FTr

ansm

issi

on M

ediu

m R

equi

rem

ent P

rime

OTr

ansm

issi

on M

ediu

m U

sed

OO

OO

OU

ser

Ser

vice

Info

rmat

ion

OU

ser

Ser

vice

Info

rmat

ion

Prim

eO

Use

r-to

-Use

r In

dica

tors

OO

OO

OO

OO

Use

r-to

-Use

r In

form

atio

nO

OO

OO

OO

V

Loca

tion

Num

ber

OM

essa

ge C

ompa

tibili

ty In

form

atio

nO

OO

OO

F =

Man

dato

ry f

ixed

leng

th p

aram

eter

V =

Man

dato

ry v

aria

ble

leng

th p

aram

eter

O =

Opt

iona

l par

amet

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leng

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Acronym Message Type Code

ACM Address Complete 00000110ANM Answer 00001001BLO Blocking 00010011BLA Blocking Acknowledgment 00010101CMC Call Modification Completed 00011101*CMRJ Call Modification Reject 00011110*CMR Call Modification Request 00011100*CPG Call Progress 00101100CGB Circuit Group Blocking 00011000CGBA Circuit Group Blocking Acknowledgment 00011010CQM Circuit (Group) Query 00101010CQR Circuit (Group) Query Response 00101011GRS Circuit Group Reset 00010111GRA Circuit Group Reset Acknowledgment 00101001CGU Circuit Group Unblocking 00011001CGUA Circuit Group Unblocking Acknowledgment 00011011CRM Circuit Reservation 11101010*CRA Circuit Reservation Acknowledgment 11101001*CVR Circuit Validation Response 11101011*CVT Circuit Validation Test 11101100*CSVR CUG Selection and Validation Request 00100101*CSVS CUG Selection and Validation Response 00100110*CRG Charge Information 00110001**CFN Confusion 00101111CON Connect 00000111COT Continuity 00000101CCR Continuity Check Request 00010001DRS Delayed Release 00100111*EXM Exit 11101101*FAC Facility 00110011FAA Facility Accepted 00100000FAD Facility Deactivated 00100010*FAI Facility Information 00100011*FRJ Facility Reject 00100001FAR Facility Request 00011111FOT Forward Transfer 00001000IDR Identification Request 00110110**IRS Identification Response 00110111**INF Information 00000100INR Information Request 00000011IAM Initial Address 00000001LPA Loop Back Acknowledgment 00100100NRM Network Resource Management 00110010OLM Overload 00110000PAM Pass-along 00101000REL Release 00001100RLC Release Complete 00010000RSC Reset Circuit 00010010RES Resume 00001110SGM Segmentation 00111000SAM Subsequent Address 00000010SUS Suspend 00001101UBL Unblocking 00010100UBA Unblocking Acknowledgment 00010110UCIC Unequipped CIC 00101110UPA User Part Available 00110101UPT User Part Test 00110100USR User-to-user Information 00101101

- 15 -

ISUP Message Type Table

* ANSI-ISUP only** ITU-ISUP only

- 16 -

Message Type Code

Access Delivery Information 00101110**Access Transport 00000011Automatic Congestion Level 00100111Backward Call Indicators 00010001Business Group 11000110*Call Diversion Information 00110110**Call History Information 00101101**Call Modification Indicators 00010111*Call Reference 00000001Called Party Number 00000100Calling Party Number 00001010Calling Party’s Category 00001001Carrier Identification 11000101*Carrier Selection Information 11101110*Cause Indicators 00010010Charge Number 11101011*Circuit Assignment Map 00100101*Circuit Group Characteristic Indicator 11100101*Circuit Group Supervision Message Type Ind. 00010101Circuit Identification Name 11101000*Circuit State Indicator 00100110Circuit Validation Response Indicator 11100110*CUG Check Response Indicators 00011100*CUG Interlock Code 00011010COMMON LANGUAGE 11101001*Connected Number 00100001Connection Request 00001101Continuity Indicators 00010000Echo Control Information 00110111**Egress 11000011*End of Optional Parameters 00000000Event Information Indicators 00100100Facility Indicator 00011000Facility Information Indicators 00011001*Forward Call Indicators 00000111Freephone Indicators 01000001**Generic Address 11000000*Generic Digits 11000001Generic Name 11000111*Generic Notification 00101100**Generic Number 11000000**Generic Reference 01000010**Hop Counter 00111101Index 00011011*Information Indicators 00001111Information Request Indicators 00001110Jurisdiction 11000100*Location Number 00111111**MCID Request Indicator 00111011**MCID Response Indicator 00111100**Message Compatibility Information 00111000**MLPP Precedence 00111010**Nature of Connection Indicators 00000110Network Specific Facilities 00101111**Network Transport 11101111*Notification Indicator 11100001*

ISUP Parameter Code Table


- 17 -

ISUP Parameter Code Table Continued

Message Type Code

Operator Services Information 11000010*Optional Backward Call Indicators 00101001Optional Forward Call Indicators 00001000Original Called Number 00101000Originating Line Information 11101010*Origination ISC Point Code 00101011**Outgoing Trunk Group Number 11100111*Parameter Compatibility Information 00111001**Precedence 00111010*Propagation Delay Counter 00110001**Range and Status 00010110Redirecting Number 00001011Redirection Information 00010011Redirection Number 00001100Redirection Number Restriction 01000000**Remote Operations 00110010Service Activation 00110011Service Code Indicator 11101100*Signaling Point Code 00011110Special Processing Request 11101101*Subsequent Number 00000101Suspend/resume Indicators 00100010Transaction Request 11100011*Transit Network Selection 00100011Transmission Medium Requirement 00000010Transmission Medium Requirement Prime 00111110**Transmission Medium Used 00110101User Service Information 00011101User Service Information Prime 00110000User Teleservice Information 00110100**User-to-user Indicators 00101010User-to-user Information 00100000


- 18 -

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Tabl

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00

00

01

00

10

00

11

01

00

01

01

01

10

01

11

10

00

10

01

10

10

10

11

11

00

11

01

11

10

1111

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GG

roup

0000

0001

0010

0011

0100

0101

0110

0111

1000

H0

H1

FAM

FS

M

BS

M

SB

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UB

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M

CC

M

GR

M

CN

M

IAM

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M

GR

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AC

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SE

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AN

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MG

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AC

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CH

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AN

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BLO

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A

SA

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T

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C

CB

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MG

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SA

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CC

F

AD

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CLF

UB

L

MU

A

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L

RA

M

UB

A

HG

B

AN

US

SB

FO

T

CC

R

HB

A

UN

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CC

L

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C

HG

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HU

A

1001

1010

1011

1100

1101

1110

1111

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AC

B

GR

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DP

N

SG

B

MP

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SB

AS

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SU

A

EU

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- 19 -

TUP Heading Code Table Abbreviations

ACB Access barred signalACC Automatic congestion control information messageACM Address complete messageADI Address incomplete signalANC Answer signal, chargeANN Answer signal, no chargeANU Answer signal, unqualifiedBLA Blocking-acknowledgment signalBLO Blocking signalBSM Backward set-up messageCBK Clear-back signalCCF Continuity failure signalCCL Calling party clear signalCCM Circuit supervision messageCCR Continuity-check-request signalCFL Call failure signalCGC Circuit-group-congestion signalCHG Charging messageCLF Clear-forward signalCNM Circuit network management message groupCOT Continuity signalCSM Call supervision messageDPN Digital path not provided signalEUM Extended unsuccessful backward set-up information

messageFAM Forward address messageFOT Forward-transfer signalFSM Forward set-up messageGRA Circuit group reset-acknowledgment messageGRM Circuit group supervision messagesGRQ General request messageGRS Circuit group reset messageGSM General forward set-up information messageHBS Hardware failure oriented group blocking-

acknowledgment messageHGH Hardware failure oriented group blocking messageHGU Hardware failure oriented group unblocking messageHUA Hardware failure oriented group unblocking-

acknowledgment messageIAI Initial address message with additional informationIAM Initial address messageLOS Line-out-of-service signalMBA Maintenance oriented group blocking-

acknowledgment messageMGB Maintenance oriented group blocking messageMGU Maintenance oriented group unblocking messageMPR Misdialed trunk prefix

- 20 -

TUP Heading Code Table Abbreviations Continued

MUA Maintenance oriented group unblocking acknowledgment message

NNC National-network-congestion signalRAN Reanswer signalRLG Release-guard signalRSC Reset-circuit signalSAM Subsequent address messageSAO Subsequent address message with one signalSBA Software generated group blocking-acknowledgment

messageSBM Successful backward set-up information messageSEC Switching-equipment-congestion signalSGB Software generated group blocking messageSGU Software generated group unblocking messageSSB Subscriber-busy signal (electrical)SST Send-special-information tone signalSUA Software generated group unblocking-acknowledgmentUBA Unblocking-acknowledgment signalUBL Unblocking signalUBM Unsuccessful backward set-up information messageUNN Unallocated number signal

Glossary of SS7 Acronyms

ASE Application Service ElementBIB Backward Indicator BitBSN Backward Sequence NumberCCITT International Telegraph & Telephone Coucultative

CommitteeCCS Common Channel SignallingCIC Circuit Identification CodeDPC Destination Point CodeDUP Data User PartFCS Frame Check SequenceFIB Forward Indicator BitFSN Forward Sequence NumberFISU Fill-In Signal UnitGTT Global Title TranslationISP Intermediate Service PartISPC International Signalling Point CodeISUP ISDN User PartLI Length IndicatorLSSU Link Status Signal UnitMSU Message Signal UnitMTP Message Transfer PartNSP Network Services PartOMAP Operations and Maintenance Application Part

- 21 -

Glossary of SS7 Acronyms Continued

OPC Origination Point CodeOSI Open Systems InterconnectionSANC Signalling Area Network CodeSCCP Signalling Connection Control PartSEP Signalling End PointSF Status FieldSI Service IndicatorSIF Signalling InformationSIO Service Information OctetSLC Signal Link CodeSLS Signal Link SelectionSNM Signalling Network ManagementSNT Signalling Network TestingSP Signalling PointSPC Signalling Point CodeSPR Signalling Point W/SCCP Relay functionSSF Sub-Service FieldSTP Signal Transfer PointSU Signal UnitsTC Transaction CapabilitiesTCAP Transaction Capabilities Application PartTUP Telephone User Part

CCITT White Book, Volume VI, Fascicle VI.7,Recommendations Q.700-Q.716: Specifications ofSignalling System No. 7.

CCITT White Book Volume VI, Fascicle VI.8,Recommendations Q.721-Q.766: Specifications ofSignalling System No.7.

ITU White Book, ITU-T Recommendation Q.763:Specifications of Signalling System Number 7.

GR-246-CORE, Issue 1, December 1994:Specifications of Signalling System Number 7.

Even though the specifications herein may resemble specifications, descriptions or requirements of third parties or portions thereof, nothingherein shall be deemed, expressly or by implication, to be a warrantyby such third parties or an endorsement by any of them or concurrenceby any of them in any representation with respect to the SS7 PocketGuide developed by TEKELEC, its employees or agents.

SS7 References

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Tel +44.1784.898138

Fax +44.1784.898320

www.tekelec.com

908-0099-01 Rev. D 0501-7,500

Documents

Ss7 Pocket Guide