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element xisoblanadi va uchta
funksional bloklardan tashkil topgan.
1)P-CSCF (Proxy CSCF)
2) I-CSCF (Interrogating CSCF)
3) S-CSCF (Serving CSCF)
Function (CSCF), are used to process
SIP signalling packets in the IMS.
P-CSCF
Tashqi tarmoqlar bilan bog‗lash
uchun vosita. Asosiy vazifasi - tashqi
tarmoq abonentlarni xizmatlarga
imtiyozini aniqlaydi va xizmat turiga
bog‗liq
serverni tanlaydi va unga
murojat etishga ruhsat beradi.
Proxy-CSCF (P-CSCF) is a SIP proxy
that is the first point of contact for the
IMS terminal. It can be located either in
the visited network (in full IMS
networks) or in the home network.
I-CSCF
Tashqi tarmoqlar bilan bog‗lash
uchun vosita. Asosiy vazifasi - tashqi
tarmoq abonentlarni xizmatlarga
imtiyozini aniqlaydi va xizmat turiga
bog‗liq serverni tanlaydi va unga
murojat etishga ruhsat beradi.
Interrogating-CSCF (I-CSCF) is another
SIP function located at the edge of an
administrative domain.
S-CSCF
IMS tarmog‗ining markaziy tuguni.
Hamma oxirgi qurilmalardan
kelayotgan SIP-xabarlarni qayta
ishlaydi.
Serving-CSCF (S-CSCF) is the central
node of the signalling plane. It is a SIP
server, but performs session control too.
It is always located in the home
network.
HSS
Foydalanuvchilarni uy serveri,
foydalanuvchilarni ma‘lumotlar
bazasi xisoblanadi va alohida
foydalanuvchilarning ma‘lumotlariga
xizmat ko‗rsatadi. Agar IMS
tarmog‗ida bir nechta HSS serverlar
mavjud bo‗lsa, unda SLF (Subscriber
Locator Function)
foydalanuvchilarga tegishli HSSni
joyini aniqlash serverini qo‗shish
kerak bo‗ladi, u aniq
foydalanuvchiga tegishli bo‗lgan
HSS ni topib beradi.
The home subscriber server or user
profile server function, is a master user
database that
supports the IMS network
entities that actually handle calls. It
contains the subscription-related
information (subscriber profiles),
performs authentication and
authorization of the user, and can
provide information about the
subscriber's location and IP information.
BGCF
IMS tarmog‗ida va kanallar
kommutatsiya tarmog‗idagi
domenlar o‗rtasida qo‗ng‗iroq
signallarini yo‗naltirishni
boshqaruvchi element. Telefon
raqamlarga ko‗ra yo‗naltirish imkoni
mavjud va kanallar kommutatsiyasi
domenidagi shlyuzni tanlaydi, u
shlyuz orqali IMS tarmog‗i UFTT
bilan yoki GSM tarmog‗i bilan
bog‗lanadi.
A Breakout Gateway Control Function
(BGCF) is a SIP proxy which processes
requests for routing from an S-CSCF
when the S-CSCF has determined that
the session cannot be routed using DNS
or ENUM/DNS. It includes routing
functionality based on telephone
numbers.
MGCF
Transport shlyuzini boshqaruvchi
vosita.
A media gateway controller function
(MGCF) is a SIP endpoint that does call
control protocol conversion between
276
SIP and ISUP/BICC and interfaces with
the SGW over SCTP.
MRFC
Multimedia resurslar
jarayonini
boshqaradi, multimedia xizmatlarini
tadbiq etadi, ular konferens aloqa,
xabar bildirish, uzatilayotgan
signallarni kodlashtirish kabilardir.
The MRFC is a signaling plane node
that interprets information coming from
an AS and S-CSCF to control the MRFP
UE
Foydalanuvchi terminali istalgan
oxirgi terminal bo‗lishi mumkinki,
markaziy bosh qurilma bilan
bog‗lashni ta‘minlaydi.
User equipment is any device used
directly by an end-user to communicate.
It can be a hand-held telephone, a laptop
computer equipped with a mobile
broadband adapter, or any other device.
SIP
Bu protokol multimedia aloqalari
seanslarini nazorat qilish va
signalizatsiya qilish
uchun aloqa
protokoli hisoblanadi.
The Session Initiation Protocol (SIP) is
a communications protocol for signaling
and controlling multimedia
communication sessions.
INVITE
Qo‗ng‗uroqni o‗rnatish maqsadida
seans dialoglarini taklif qilishda
foydalaniladi.
Used to initiate a session dialog –
typically to set up a phone call
REGISTR
SIP foydalanuvchi agentini ro‗yxatga
oladi hamda ro‗yxatdan o‗chirish
vazifasini bajaradi.
Used to register or unregister a SIP
user-agent with a SIP registrar.
SIP-if-match
Dastlabgi chop etilgan xodisani
qayta o‗zgartirishda, SIP-If-Match
sarlovhasi o‗z ichiga olgan
o‗zgartirilgan ma‘lumotni so‗rov
tariqasida jo‗natadi.
When updating previously published
event state, PUBLISH requests MUST
contain a single SIP-If-Match header
field identifying the specific event state
that the request is refreshing, modifying
or removing.
200 ОК
HTTP so‗rovlarini muvafaqqiyatli
jo‗natilganligi uchun standart javob
shakli.
Standard response for successful HTTP
requests. The actual response will
depend on the request method used.
Presence
service
Status xizmati tarmoq xizmati bo‗lib,
qabul qiladi,
saqlaydi xamda status
axborotlarini taqsimlaydi.
Presence service is a network service
which accepts, stores and distributes
presence information.
Presence
server
Status serveri dasturiy platforma
bo‗lib, provayderlardan
ma‘lumotlarni to‗playdi va
boshqalari bilan u ma‘lumotlarni
almashadi.
Presence server is a software platform
that gathers presence information from
multiple providers and then shares it
between those providers.
ОМА
Ochiq mobil aliyens - standart
obyekt bo‗lib, mobil telefon ishlab
chiqruvchi tashkilotlar uchun ochiq
standartlar ishlab chiqaradi.
The Open Mobile Alliance is a
standards body which develops open
standards for the mobile phone industry.
CAS
Ichki kanal signalizatsiyasi - raqamli
aloqa signallarining bir turi.
Channel-associated signaling, also
known as per-trunk signaling (PTS), is a
form of digital communication
signaling.
P2P
Taqsimlangan
ilovalar arxitekturasi
hisoblanib, tarmoq vazifalarini va
yuklamalarini arxitektura bo‗ylab
taqsimlab foydalanish imkoniyatini
Peer-to-peer computing is a distributed
application architecture that partitions
tasks or workloads between peers.
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beruvchi tarmoq.
NGN
Keyingi avlod tarmoqlari -
telekommunikatsiya xizmatlarini
paketli ko‗rinishda ta‘minlaydigan
tarmoqdir.
A Next Generation Networks (NGN) is
a packet-based network able to provide
Telecommunication
Firewall
Tarmoqning xavfsizligini
ta‘minlovchi tizim bo‗lib, kiruvchi
va chiquvchi oqimlarni monitoring
va nazorat qilish vazafasini bajaradi.
A firewall is a network security system
that monitors and controls the incoming
and outgoing network traffic based on
predetermined security rules.
МySQL
Ma‘lumotlar bazasining dasturiy
ta‘minoti
Database software
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