40
1 Roch H. Glitho- Ericsson/Concordia University January 2005 INSE 7110 Winter 2005 Value Added Services Engineering in Next Generation Networks Week #3
1R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
INSE
711
0 �
Win
ter
2005
Val
ue A
dded
Ser
vice
s Eng
inee
ring
in N
ext G
ener
atio
n N
etw
orks
W
eek
#3
2R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Out
line
1.In
trod
uctio
n 2.
Cor
e SI
P3.
Sele
cted
Ext
ensi
ons
4.Th
ird G
ener
atio
n C
ellu
lar N
etw
orks
3R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
Intr
oduc
tion
A se
t of I
ETF
spec
ifica
tions
incl
udin
g:�
SIP
core
sig
nalli
ng:
�R
FC 2
543,
Mar
ch 1
999
�R
FC 3
261,
Jun
e 20
02 (O
bsol
etes
RFC
254
3)
�SI
P ex
tens
ions
(e.g
. RFC
326
5, J
une
2002
-Ev
ent n
otifi
catio
n)�
May
hav
e no
thin
g to
do
with
sig
nallin
g
�U
sed
in c
onju
nctio
n w
ith o
ther
IETF
pro
toco
ls�
QO
S re
late
d pr
otoc
ol (e
.g. R
SVP)
�M
edia
tran
spor
tatio
n re
late
d pr
otoc
ol (e
.g. R
TP -
RFC
188
9)
�O
ther
s (e
.g. S
DP
-RFC
232
7)
4R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
Intr
oduc
tion
Prim
e si
gnal
ing
syst
em b
ecau
se a
dopt
ed b
y al
l key
ne
xt g
ener
atio
n ne
twor
ks:
�3G
PP�
3GPP
2�
Pack
etC
able
:
.
5R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Sess
ion
Initi
atio
n Pr
otoc
ol (S
IP) -
Cor
e
1. In
trod
uctio
n
2. F
unct
iona
l ent
ities
3. M
essa
ges
4. A
dig
ress
ion
on S
DP
5. E
xam
ples
6R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
Intr
oduc
tion
SIP
core
Sig
nalin
g�
A si
gnal
ling
prot
ocol
for t
he e
stab
lishm
ent,
mod
ifica
tion
and
tear
dow
n of
mul
timed
ia s
essi
ons
�Ba
sed
on H
TTP
A fe
w k
ey fe
atur
es�
Text
bas
ed p
roto
col
�C
lient
/ser
ver p
roto
col (
requ
est/r
espo
nse
prot
ocol
)
7R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
The
func
tiona
l ent
ities
Use
r age
nts
-En
d po
ints
, can
act
as
both
use
r age
nt c
lient
and
as
user
age
nt
serv
er-
Use
r Age
nt C
lient
: Cre
ate
new
SIP
requ
ests
-U
ser A
gent
Ser
ver:
Gen
erat
e re
spon
ses
to S
IP re
ques
ts-
Dia
log:
Pee
r to
peer
rela
tions
hip
betw
een
two
user
age
nts,
es
tabl
ishe
d by
spe
cific
met
hods
Prox
y se
rver
s-
Appl
icat
ion
leve
l rou
ters
Red
irect
ser
vers
-Red
irect
clie
nts
to a
ltern
ate
serv
ers
Reg
istr
ars
-Kee
p tra
cks
of u
sers
8R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
The
func
tiona
l ent
ities
Stat
e-fu
ll pr
oxy
-K
eep
trac
k of
all
tran
sact
ions
bet
wee
n th
e in
itiat
ion
and
the
end
of a
tran
sact
ion
-Tr
ansa
ctio
ns:
-R
eque
sts
sent
by
a cl
ient
alo
ng w
ith a
ll th
e re
spon
ses
sent
ba
ck b
y th
e se
rver
to th
e cl
ient
Stat
eles
s pr
oxy
-Fi
re a
nd fo
rget
9R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
The
mes
sage
sG
ener
ic s
truc
ture
-St
art-l
ine
-H
eade
r fie
ld(s
)-
Opt
iona
l mes
sage
bod
y
Req
uest
mes
sage
-Req
uest
line
as
star
t lin
e. M
etho
d na
me
. Req
uest
URI
. Pro
toco
l ver
sion
Res
pons
e m
essa
ge-S
tatu
s lin
e as
sta
rt li
ne. P
roto
col v
ersi
on. S
tatu
s co
de
. Rea
son
phra
se (T
extu
al d
escr
iptio
n of
the
code
)
10R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
The
mes
sage
sR
eque
st m
essa
ges
-Met
hods
for s
ettin
g up
ses
sion
s.
INVI
TE.
ACK
. CAN
CEL
. B
YE
-Oth
ers
. REG
ISTE
R (R
egis
trat
ion
of c
onta
ct in
form
atio
n). O
PTIO
NS
(Que
ryin
g se
rver
s ab
out t
heir
capa
bilit
ies)
.
11R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
The
mes
sage
sR
espo
nse
mes
sage
-Pro
visi
onal
-Fi
nal
Exam
ples
of s
tatu
s co
de1x
x: P
rovi
sion
al2x
x: S
ucce
ss6x
x: G
loba
l fai
lure
.
12R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
A di
gres
sion
on
SDP
�Se
ssio
n D
escr
iptio
n Pr
otoc
ol-C
onve
y th
e in
form
atio
n ne
cess
ary
to a
llow
a p
arty
to jo
in a
m
ultim
edia
ses
sion
Sess
ion
rela
ted
info
rmat
ion
Med
ia re
late
d in
form
atio
n-
Text
bas
ed p
roto
col
-N
o sp
ecifi
ed tr
ansp
ort
-M
essa
ges
are
embe
dded
in th
e m
essa
ges
of th
e pr
otoc
ol
used
for t
he s
essi
on-
Sess
ion
Anno
unce
men
t Pro
toco
l (SA
P)-
Sess
ion
Initi
atio
n Pr
otoc
ol (S
IP)
13R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
A di
gres
sion
on
SDP
�Se
ssio
n D
escr
iptio
n Pr
otoc
ol-
<Typ
e> =
<Va
lue>
-So
me
exam
ples
Sess
ion
rela
ted
v= (p
roto
col v
ersi
on)
s= (S
essi
on n
ame)
Med
ia re
late
dm
= (m
edia
nam
e an
d tra
nspo
rt ad
dres
s)b=
(ban
dwid
th in
form
atio
n)
14R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
A di
gres
sion
on
SDP
�Se
ssio
n D
escr
iptio
n Pr
otoc
olU
se w
ith S
IP-
Neg
otia
tion
follo
ws
offe
r / re
spon
se m
odel
-M
essa
ge p
ut in
the
body
of p
ertin
ent S
IP m
essa
ges
INVI
TE R
eque
st /
resp
onse
OPT
ION
S R
eque
st /
resp
onse
.
15R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
A s
impl
ified
cal
l cas
e � .
INV
ITE
(1)
INV
ITE
(2)
INV
ITE
(4)
100
TRYI
NG
(3)
100
TRYI
NG
(5)
180
RIN
GIN
G (6
)18
0 R
ING
ING
(7)
180
RIN
GIN
G (8
)20
0 O
K (9
)
200
OK
(10)
200
OK
(11)
ACK
(12)
MED
IA S
ESS
ION
BYE
(13)
200
OK
(14)
CAL
LER
P
RO
XY A
PR
OXY
B
CAL
LEE
16R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
Exa
mpl
es o
f mes
sage
s fr
om th
e R
FCAn
exa
mpl
e of
an
INVI
TE
INVI
TE s
ip:b
ob@
bilo
xi.c
om S
IP/2
.0Vi
a: S
IP/2
.0/U
DP
pc33
.atla
nta.
com
;bra
nch=
z9hG
4bK
776a
sdhd
sM
ax-F
orw
ards
: 70
To: B
ob <
sip:
bob@
bilo
xi.c
om>
From
: Alic
e <s
ip:a
lice@
atla
nta.
com
>;ta
g=19
2830
1774
Cal
l-ID
: a84
b4c7
6e66
710@
pc33
.atla
nta.
com
CSe
q: 3
1415
9 IN
VITE
Con
tact
: <si
p:al
ice@
pc33
.atla
nta.
com
>C
onte
nt-T
ype:
app
licat
ion/
sdp
Con
tent
-Len
gth:
142
17R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
Exa
mpl
es o
f mes
sage
s fr
om th
e R
FCAn
exa
mpl
e of
an
OPT
ION
S m
essa
ge
OPT
ION
S si
p:ca
rol@
chic
ago.
com
SIP
/2.0
Via:
SIP
/2.0
/UDP
pc
33.a
tlant
a.co
m;b
ranc
h=z9
hG4b
Khj
hs8a
ss87
7M
ax-F
orw
ards
: 70
To: <
sip:
caro
l@ch
icag
o.co
m>
From
: Alic
e <s
ip:a
lice@
atla
nta.
com
>;ta
g=19
2830
1774
Cal
l-ID:
a84
b4c7
6e66
710
CSe
q: 6
3104
OPT
ION
SC
onta
ct: <
sip:
alic
e@pc
33.a
tlant
a.co
m>
Acce
pt: a
pplic
atio
n/sd
pC
onte
nt-L
engt
h: 0
18R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP:
Exa
mpl
es o
f mes
sage
s fr
om th
e R
FCAn
exa
mpl
e of
RES
PON
SE to
the
OPT
ION
S re
ques
tSI
P/2.
0 20
0 O
KVi
a: S
IP/2
.0/U
DP
pc33
.atla
nta.
com
;bra
nch=
z9hG
4bK
hjhs
8ass
877
;rece
ived
=192
.0.2
.4To
: <si
p:ca
rol@
chic
ago.
com
>;ta
g=93
8108
74Fr
om: A
lice
<sip
:alic
e@at
lant
a.co
m>;
tag=
1928
3017
74C
all-I
D: a
84b4
c76e
6671
0C
Seq:
631
04 O
PTIO
NS
Con
tact
: <si
p:ca
rol@
chic
ago.
com
>C
onta
ct: <
mai
lto:c
arol
@ch
icag
o.co
m>
Allo
w: I
NVI
TE, A
CK
, CAN
CEL
, OPT
ION
S, B
YEAc
cept
: app
licat
ion/
sdp
Acce
pt-E
ncod
ing:
gzip
Acce
pt-L
angu
age:
en
Supp
orte
d:fo
oC
onte
nt-T
ype:
app
licat
ion/
sdp
19R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SDP:
Exa
mpl
es o
f mes
sage
s fr
om th
e R
FC �
Sess
ion
Des
crip
tion
Prot
ocol
An e
xam
ple
from
the
RFC
�v=
0o=
mha
ndle
y28
9084
4526
289
0842
807
IN IP
4 12
6.16
.64.
4s=
SDP
Sem
inar
i=A
Sem
inar
on
the
sess
ion
desc
riptio
n pr
otoc
olu=
http
://w
ww
.cs.
ucl.a
c.uk
/sta
ff/M
.Han
dley
/sdp
.03.
pse=
mjh
@is
i.edu
(Mar
k H
andl
ey)
c=IN
IP4
224.
2.17
.12/
127
t=28
7339
7496
287
3404
696
a=re
cvon
lym
=aud
io 4
9170
RTP
/AVP
0m
=vid
eo 5
1372
RTP
/AVP
31
m=a
pplic
atio
n 32
416
udp
wb
a=or
ient
:por
trait
20R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
SIP
�Se
lect
ed E
xten
sion
s 1. E
xten
sion
s fo
r ad
hoc
netw
orks
2. E
vent
fram
ewor
k
3. O
ther
s
21R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Ad h
oc n
etw
orks
(Pos
sibl
y m
obile
) het
erog
eneo
us n
odes
com
mun
icat
ing
with
out
fixed
infr
astr
uctu
re a
nd p
re-s
et o
rgan
izat
ion
of a
vaila
ble
links
-W
irele
ss te
chno
logi
es (e
.g. B
luet
ooth
, IEE
E 80
2.11
)-
Use
d in
sce
nario
s su
ch a
s:-
Dis
aste
r rel
ief o
pera
tions
-M
ilitar
y op
erat
ions
-H
ot s
pots
�-
Con
side
red
a a
new
net
wor
k of
4G
-4G
-C
o-ex
istin
g an
d co
oper
atin
g ne
twor
ks
22R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Ad h
oc n
etw
orks
Sign
allin
g-
No
cent
raliz
ed e
ntity
-D
ynam
ic p
ropa
gatio
n of
ses
sion
rela
ted
info
rmat
ion
-Sc
alab
ility
-Li
ghtw
eigh
t-
Opt
imal
usa
ge o
f res
ourc
es
.
23R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Ad h
oc n
etw
orks
Sign
allin
g-
Poss
ible
, but
not
opt
imal
impl
emen
tatio
n: F
ull-m
esh
.
24R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Ad h
oc n
etw
orks
Sign
allin
g �
Exte
nsio
ns m
ade
to S
IP-
Expi
red
IETF
dra
fts-
Exam
ple
of n
ew h
eade
rs-
Also
: Lis
t the
par
ticip
ants
alre
ady
conn
ecte
d to
the
sess
ion
or
tryin
g to
con
nect
to it
-R
epla
ce: u
se in
spl
it / m
erge
ope
ratio
n-
List
ed p
artic
ipan
ts s
houl
d be
trea
ted
as if
they
hav
e se
nt a
BYE
to
the
reci
pien
t of t
he m
essa
ge
25R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Even
t Not
ifica
tion
Mot
ivat
ion
-N
eces
sity
for a
nod
e to
be
asyn
chro
nous
ly n
otifi
ed o
f hap
peni
ng
(s) i
n ot
her n
odes
-Bu
sy /
not b
usy
(SIP
pho
nes)
-A
clie
nt A
can
cal
l aga
in a
clie
nt B
whe
n no
tifie
d th
at B
is n
owno
t bu
sy-
On-
line
/ Off-
line
-Bu
ddy
list
26R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Even
t Not
ifica
tion
Con
cept
ual f
ram
ewor
k
.
Req
uest
or
Prov
ider
Subs
crib
e (s
peci
fic e
vent
(s))
Not
ify (s
peci
fic e
vent
)
Not
ify (s
peci
fic e
vent
)
Not
ify (s
peci
fic e
vent
)
Un-
subs
crib
e (s
peci
fic e
vent
(s))
27R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Even
t Not
ifica
tion
The
SIP
Even
t Not
ifica
tion
Fram
ewor
k -
Term
inol
ogy
-Ev
ent p
acka
ge:
-Ev
ents
a n
ode
can
repo
rt-
Not
par
t of t
he fr
amew
ork
�Pa
rt of
oth
er R
FCs
-Su
bscr
iber
-N
otifi
er-
New
Mes
sage
s-
Subs
crib
e-
Nee
d to
be
refre
shed
-U
sed
as w
ell f
or u
n-su
bscr
ibin
g (e
xpiry
val
ue p
ut to
zer
o)-
Not
ify
28R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Even
t Not
ifica
tion
The
SIP
Even
t Not
ifica
tion
Fram
ewor
k -
Mor
e on
the
met
hods
-N
ew h
eade
rs-
Even
t-
Allo
w-E
vent
s-
Subs
crip
tion
stat
e
.
29R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Even
t Not
ifica
tion
An e
xam
ple
of u
se: R
EFER
Met
hod
-R
ecip
ient
sho
uld
cont
act a
third
par
ty u
sing
the
UR
I pro
vide
d in
the
CO
NTA
CT
field
-C
all t
rans
fer
-Th
ird p
arty
cal
l con
trol
-H
andl
ed a
s Su
bscr
ibe
/ not
ify-
REF
ER re
ques
t is
cons
ider
ed a
n im
plic
it su
bscr
iptio
n to
REF
ER e
vent
-R
efer
-TO
: UR
I to
be c
onta
cted
-Ex
piry
det
erm
ined
by
reci
pien
t and
com
mun
icat
ed to
sen
der i
n th
efir
st N
OTI
FY-
Rec
ipie
nt n
eeds
to in
form
sen
der o
f the
suc
cess
/ fa
ilure
in
cont
actin
g th
e th
ird p
arty
30R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Even
t Not
ifica
tion
Anot
her e
xam
ple
of u
se: P
rese
nce
-D
isse
min
atio
n/co
nsum
ptio
n of
pre
senc
e in
form
atio
n (e
.g. o
n/of
f, w
illing
ness
to c
omm
unic
ate,
dev
ice
capa
bilit
ies,
pre
fere
nces
)-
Num
erou
s ap
plic
atio
ns-
Mul
tipar
ty s
essi
ons
initi
ated
whe
n a
quor
um is
on-
line
-N
ews
adap
ted
to d
evic
e ca
pabi
litie
s-
Seve
ral s
tand
ards
incl
udin
g SI
MPL
E (S
IP b
ased
)-
Han
dled
as
Subs
crib
e / n
otify
in S
IMPL
E-
Wat
cher
s / p
rese
ntiti
es-
Expl
icit
subs
crip
tions
-Ex
plic
it no
tific
atio
ns
31R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
INFO
Met
hod
Allo
w th
e ex
chan
ge o
f non
sig
nalli
ng re
late
d in
form
atio
n du
ring
a SI
P di
alog
-Se
man
tic d
efin
ed a
t app
licat
ion
leve
l-
Mid
-cal
l sig
nallin
g in
form
atio
n-
DTM
F di
gits
with
SIP
pho
nes
-In
fo c
arrie
d as
-H
eade
rs a
nd/o
r-
Mes
sage
bod
y
32R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
3GPP
net
wor
ks
1. E
ssen
tials
2. K
ey d
efin
ition
s
3. C
all c
ases
33R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
3GPP
net
wor
ksEs
sent
ials
-M
ade
of:
-Le
gacy
-C
ircui
t sw
itche
d pa
rt (G
SM)
-Pa
cket
sw
itche
d (G
PRS)
-N
ext g
ener
atio
n pa
rt (IP
mul
timed
ia (I
M))
-In
ter-w
orki
ng-
Som
e of
the
func
tiona
l ent
ities
are
com
mon
to b
oth
lega
cy a
nd N
GN
(e
.g. H
ome
Subs
crib
er S
erve
r)
-Ad
optio
n/ex
tens
ion
of e
xist
ing
NG
N s
peci
ficat
ions
:-
SIP
inst
ead
of H
.323
-H
.248
/Meg
aco
34R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
IP m
ultim
edia
por
tion
P-C
SC
F
CS
CF
MG
CF
HS
SC
x
IP M
ult
ime
dia
Ne
two
rks
IMS
-M
GWP
ST
N
Mn
Mb
Mg
Mm
MR
FP
Mb
Mr
Mb
Le
ga
cy
mo
bil
e
sig
na
llin
g N
etw
ork
s
CS
CF
Mw
Go
PD
F
Mw
Gm
BG
CF
Mj
Mi
BG
CF
Mk
Mk
C,
D,
Gc
,G
r
UE
Mb
Mb
Mb
MR
FC
SL
F
Dx
Mp
PS
TN
PS
TN
IM S
ub
syst
em
AS
ISC
Dh
Sh
,Si
35R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
IP M
ultim
edia
por
tion
Som
e of
the
func
tiona
l ent
ities
Cal
l Ses
sion
Con
trol F
unct
ion
(CSC
F)-
Prox
y-C
SCF:
Firs
t con
tact
poi
nt in
the
IM n
etw
ork
�Ac
cept
s re
ques
ts a
nd p
roxi
es th
em-
Serv
ing-
CSC
F: P
erfo
rm s
essi
on c
ontro
l for
all
user
ent
ities
in th
e ne
twor
ks in
clud
ing
visi
tors
-In
terro
gatin
g C
SCF:
Con
tact
poi
nt in
an
oper
ator
dom
ain
for a
ll us
ers
(hom
e us
ers,
and
vis
iting
use
rs)
-
Hom
e Su
bscr
iber
Ser
ver (
HSS
)-
Mas
ter d
ata
base
�su
bscr
iptio
n / l
ocat
ion
info
rmat
ion
36R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
IP M
ultim
edia
por
tion
�R
egis
trat
ion
.
P-C
SC
FH
SS
I-C
SC
F
1.
Re
gis
ter
2.
Re
gis
ter
3.
Cx
-Qu
ery
UEV
isit
ed
Ne
two
rkH
om
e N
etw
ork
4.
Cx
-Qu
ery
Re
sp
5.
Cx
-Se
lec
t-p
ull
6.
Cx
-Se
lec
t-p
ull
Re
sp
10
. C
x-P
ull
11
. C
x-P
ull
Re
sp
7.
Re
gis
ter
13
. 2
00
OK
14
. 2
00
OK
15
. 2
00
OK
8.
Cx
-pu
t
9.
Cx
-pu
t R
es
pS-C
SC
F
12
. S
erv
ice
Co
ntr
ol
37R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
IP M
ultim
edia
por
tion
�D
e-R
egis
trat
ion
.P-
CSC
FH
SSI-
CSC
FU
EVis
ited
Net
wor
kH
ome
Net
wor
k
1. R
EG
ISTE
R
2. R
EGIS
TER
3.C
x-Q
uery
4.C
x-Q
uery
-Res
p
5. R
EGIS
TER
9. 2
00 O
K
10. 2
00 O
K
11. 2
00 O
K
7.C
x-Pu
t
8.C
x-Pu
tR
espS-
CSC
F
6. S
ervi
ce C
ontr
ol
38R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
IP M
ultim
edia
por
tion
�C
all i
nitia
tion
-Sam
e op
erat
or
.
S-C
SC
F#
1I-
CS
CF
#2
HS
S
1.
Inv
ite
(In
itia
l S
DP
Off
er)
3.
Inv
ite
(In
itia
l S
DP
Off
er) 5
. R
es
po
ns
e
6.
Inv
ite
(In
itia
l S
DP
Off
er)
9.
Off
er
Re
sp
on
se
13
. R
es
po
ns
e C
on
f (O
pt
SD
P)
17
. C
on
f A
ck
(O
pt
SD
P)
14
. R
es
po
ns
e C
on
f (O
pt
SD
P)
15
. R
es
po
ns
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on
f (O
pt
SD
P)
18
. C
on
f A
ck
(O
pt
SD
P)
19
. C
on
f A
ck
(O
pt
SD
P)
25
. R
es
erv
ati
on
Co
nf
22
. R
es
erv
ati
on
Co
nf
23
. R
es
erv
ati
on
Co
nf
26
. R
es
erv
ati
on
Co
nf
27
. R
es
erv
ati
on
Co
nf
21
. R
es
erv
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on
Co
nf
29
. R
ing
ing
S-C
SC
F#
2
Te
rmin
ati
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Ho
me
Ne
two
rkO
rig
ina
tin
gN
etw
ork
Te
rmin
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two
rk
4.
Lo
ca
tio
n Q
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ry
8.
Inv
ite
(In
itia
l S
DP
Off
er)
10
. O
ffe
r R
es
po
ns
e1
1a
. O
ffe
r R
es
po
ns
e1
2.
Off
er
Re
sp
on
se
16
. R
es
po
ns
e C
on
f (O
pt
SD
P)
20
. C
on
f A
ck
(O
pt
SD
P)
24
. R
es
erv
ati
on
Co
nf
28
. R
es
erv
ati
on
Co
nf
33
. 2
00
OK
39
. A
CK
37
. A
CK
38
. A
CK
34
. 2
00
OK
35
. 2
00
OK
36
. 2
00
OK
30
. R
ing
ing
31
. R
ing
ing
32
. R
ing
ing
40
. A
CK
7.
Se
rvic
e C
on
tro
l
2.
Se
rvic
e C
on
tro
l
Ori
gin
ati
ng
Ho
me
Ne
two
rk
39R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
IP M
ultim
edia
por
tion
�C
all i
nitia
tion
-Diff
eren
t ope
rato
rs
.
S-C
SC
F#
1I-
CS
CF
#1
(TH
IG)
I-C
SC
F#
2H
SS
1.
Inv
ite
(In
itia
l S
DP
Off
er)
3a
. In
vit
e (
Init
ial
SD
P O
ffe
r)
3b
1.
Inv
ite
(In
itia
l S
DP
Off
er)
5.
Re
sp
on
se
6.
Inv
ite
(In
itia
l S
DP
Off
er)
9.
Off
er
Re
sp
on
se
13
. R
es
po
ns
e C
on
f (O
pt
SD
P)
17
. C
on
f A
ck
(O
pt
SD
P)
14
. R
es
po
ns
e C
on
f (O
pt
SD
P)
15
. R
es
po
ns
e C
on
f (O
pt
SD
P)
18
. C
on
f A
ck
(O
pt
SD
P)
19
. C
on
f A
ck
(O
pt
SD
P)
25
. R
es
erv
ati
on
Co
nf
22
. R
es
erv
ati
on
Co
nf
23
. R
es
erv
ati
on
Co
nf
26
. R
es
erv
ati
on
Co
nf
27
. R
es
erv
ati
on
Co
nf
21
. R
es
erv
ati
on
Co
nf
29
. R
ing
ing
S-C
SC
F#
2
Ori
gin
ati
ng
Ho
me
Ne
two
rkT
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ina
tin
g H
om
e N
etw
ork
Ori
gin
ati
ng
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two
rkT
erm
ina
tin
gN
etw
ork
3b
2.
Inv
ite
(In
itia
l S
DP
Off
er)
4.
Lo
ca
tio
n Q
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ry
8.
Inv
ite
(In
itia
l S
DP
Off
er)
10
. O
ffe
r R
es
po
ns
e1
1a
. O
ffe
r R
es
po
ns
e
11
b1
. O
ffe
r R
es
po
ns
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1b
2.
Off
er
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sp
on
se
12
. O
ffe
r R
es
po
ns
e
16
. R
es
po
ns
e C
on
f (O
pt
SD
P)
20
. C
on
f A
ck
(O
pt
SD
P)
24
. R
es
erv
ati
on
Co
nf
28
. R
es
erv
ati
on
Co
nf
33
. 2
00
OK
39
. A
CK
37
. A
CK
38
. A
CK
34
. 2
00
OK
35
. 2
00
OK
36
. 2
00
OK
30
. R
ing
ing
31
. R
ing
ing
32
. R
ing
ing
40
. A
CK
2.
Se
rvic
e C
on
tro
l
7.
Se
rvic
e C
on
tro
l
40R
och
H. G
litho
-Er
icss
on/C
onco
rdia
Uni
vers
ityJa
nuar
y 20
05
Ref
eren
ces
Cor
e SI
P�
SIP
core
sig
nalli
ng:
�H
. Sch
ulzr
inne
, an
J. R
osen
berg
, SIP
: Int
erne
t Cen
tric
Sign
alin
g, IE
EE C
omm
unic
atio
ns
Mag
azin
e, O
ctob
er 2
000
�R
FC 3
261,
Jun
e 20
02 (O
bsol
etes
RFC
254
3)�
RFC
232
7 (S
DP)
�SI
P ex
tens
ions
No
over
view
pap
er-
RFC
326
5, 3
515
(Eve
nt fr
amew
ork)
-R
FC 2
976
(INFO
Met
hod)
�3G
PP�
No
over
view
pap
er�
3GPP
TS
23.2
28�
3GPP
TS
2302
