SS7 - KAMBING.ui.ac.idkambing.ui.ac.id/.../ref-eng-3/physical/ss7/ss7_pocket_guide.pdf · SS7...
Transcript of SS7 - KAMBING.ui.ac.idkambing.ui.ac.id/.../ref-eng-3/physical/ss7/ss7_pocket_guide.pdf · SS7...
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
Level 2Level 3Level 2
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
Level 2Level 3Level 2
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
Level 2Level 3Level 2
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
Level 2Level 3Level 2
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
*
*First Bit Transmitted
Format of SPC (ANSI)
HGFEDCBA HGFEDCBA
NetworkIdentifier
NetworkCluster
NetworkClusterMember
8 8 8
SPC
DPC or OPC
*
*First Bit Transmitted
HGFEDCBA
- 4 -
Format of ISPC (ITU)
M M L KJIHGFED
ZoneIdentification
Area/NetworkIdentification
SignallingPoint
Identification
3 8 3
ISPC
DPC or OPC
*
*First Bit Transmitted
C B A
SANC
MTP Management Messages Structure
ClosingFlag
FCS/CK SIF LIFIB
BIB
FSN BSN OpeningFlag
Level 2Level 3Level 2
MTP Management Information Routing Label
SIO
InformationContent
H1MSG Type
H0MSG Group
SNM Heading Code TableSNT Heading Code Table
MTPLevel 3
*
*First Bit Transmitted
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
Level 2Level 3Level 2
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
*First Bit Transmitted
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
Level 2Level 3Level 2
Signaling Information Routing Label
SIO
Above
Message Type CodeCIC**
Mandatory FixedPart
Pointers for theMandatory Variable Part
Pointer for the Startof Optional Part
MandatoryVariable Part
MandatoryParameter A
MandatoryParameter B
----------------
MandatoryParameter Z
*First Bit Transmitted
- 8 -
General ISUP Message Format:Pointer Section
*
Optional Part **For ISUP only.*First Bit Transmitted
ClosingFlag
FCS/CK SIF LIFIB
BIB
FSN BSN OpeningFlag
Level 2Level 3Level 2
Signalling Information Routing Label
SIO
Above
Message Type CodeCIC**
Mandatory FixedPart
Pointers for theMandatory Variable Part
Pointer for the Startof Optional Part
MandatoryVariable Part
Pointer toParameter 1
Pointer toParameter 2
----------------
Pointer toParameter m
Parameter 1Content
Length ofParameter 2
----------------
Parameter 2Content
Length ofParameter m
Length ofParameter 1
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
Level 2Level 3Level 2
Signalling Information Routing Label
SIO
Above
Message Type CodeCIC**
Mandatory FixedPart
Pointers for theMandatory Variable Part
Pointer for the Startof Optional Part
MandatoryVariable Part
----------------
Parameter 1Content
OptionalParameter 1
Length ofParameter 1
Parameter 2Content
OptionalParameter 2
Length ofParameter 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
Level 2Level 3Level 2
ISUP Message InformationElement
CIC Code
SIO
Above
*
Message Type
CIC Least Significant
CIC MostSignificant
Spare
8 7 6 5 4 3 2 1
*First Bit Transmitted
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
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equi
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OO
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Ser
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OU
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Prim
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Use
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OO
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OO
OO
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V
Loca
tion
Num
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OM
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ompa
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form
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OO
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F =
Man
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ixed
leng
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V =
Man
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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
* ANSI-ISUP only** ITU-ISUP only
- 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
* ANSI-ISUP only** ITU-ISUP only
- 18 -
TU
PH
eadi
ng C
ode
Tabl
e 00
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
MS
GG
roup
0000
0001
0010
0011
0100
0101
0110
0111
1000
H0
H1
FAM
FS
M
BS
M
SB
M
UB
M
CS
M
CC
M
GR
M
CN
M
IAM
GS
M
GR
Q
AC
M
SE
C
AN
C
RLG
MG
B
AC
C
IAI
CH
G
CG
C
AN
N
BLO
MB
A
SA
M
CO
T
NN
C
CB
K
BLA
MG
U
SA
O
CC
F
AD
I
CLF
UB
L
MU
A
CF
L
RA
M
UB
A
HG
B
AN
US
SB
FO
T
CC
R
HB
A
UN
N
CC
L
RS
C
HG
U
LOS
HU
A
1001
1010
1011
1100
1101
1110
1111
SS
T
GR
S
AC
B
GR
A
DP
N
SG
B
MP
R
SB
AS
GU
SU
A
EU
M
- 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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