The Intelligent Network_bariuan

8/2/2019 The Intelligent Network_bariuan

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The Intelligent Network

The IN is a cash register. --RZ


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Main Idea of IN

Intelligent layer

Signaling network

Switch & Transmissionlayer

SS7

TCP/IP IN separates service control function

from switching function

The newlyintroduced

network

Theexisting

network


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Why IN?

Efficient use of high-developed technologies Use of existing resources efficiently

Modularization and reusability of IN functions

Flexible allocation of IN network functions

Standardized management of service logic

Controls subscriber-specified service attributes

Controls user-specified service attributes


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IN Architecture

SS7

SSP/IP

SCP

SMP

SMAP

SCETCP/IP

SSP/IP

SAU

MML API

VC

EVC


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Main IN Functional Entities

Service Switching Point (SSP) responsible fordetecting special conditions during call processing

that cause a query for instructions to be issued to theSCP.

Service Control & Data Unit (SCDU) Service Control Point (SCP) stores the service provider

instructions and data that direct switch processing &provide call control.

Service Data Point (SDP) stores IN subscriber data. Service Management Point (SMP) performs

activities involved with service deployment,provisioning, control, monitoring & billing.


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Other IN Elements

Advanced Intelligent Peripheral (AIP) houses theInteractive Voice Response (IVR)

Record Billing Interface (RBI) contains CDRs forbilling & validation purposes.

Voucher Center (VC) stores scratch cards. Electronic Voucher Center (EVC) special wallet for

Expressload (applies to Sun Cellular IN).

EVPN (Enhanced Virtual Private Network)

GDR (Geographical Disaster Recovery)


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IN Specifications

CAPACITIES:

SCP Currently we have 8 SCPs which can accommodate 21Msubscribers

EVC 2M subscribers

EVPN 500k subscribers

VC 33M

LOCATION:

Libis

Pioneer RPR


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Functions and Capabilities

CALL SUPERVISIONThe PPS service supervises calls according to thefollowing:

Checks to ensure the minimum credit is available to make acall (i.e. if the credit is sufficient to establish a call accordingto the tariff). If not, the subscriber receives a faultannouncement.

Real time supervision. The remaining credit is checked inreal time during a call. The call is disconnected if the creditlimit is reached


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ACCOUNT PROFILEThe PPS service is based on a profile concept. This

enables the Service Provider to define a service adapted tospecific market segments.

Each prepaid account has an account profile. The accountprofile contains parameters which are automatically set inthe account at its creation and used at activation. Theseparameters are the default language, initial credit andactivity and inactivity durations. The account profile alsocontains information on the tariff scheme, warning thresholdsand parameters for the handling of short messages and

announcements. The account profile contains specificinformation for the screening and charging of fax/data calls.

Account profiles must be defined before any accounts arecreated.


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SCRATCHCARDS

To refill their account using a scratch card bought from aretailer, the subscriber calls a special Voice access code from their

mobile orthird party phone, selects the option to recharge and enters the refill

codefound on the card after scratching. The amount on the card istransferred to

the subscribers account and the active/inactive durations linked to thecard

are taken into account.

Subscriber can also refill/rechare their account by dialing a USSDaccesscode together with the scratchcard pin.


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Functions and CapabilitiesSCRATCH CARD PROFILE

The scratch card profile contains the characteristics of thescratch cards that belong to the same profile, i.e. creditamount, active/inactive durations of the refill and bonusamounts.

ACCOUNT LIFECYCLE

A Digitel Prepaid account moves through a series of lifecyclestates starting with the production of a SIM card until thecard is purged from the system.


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Functions and CapabilitiesCHARGING PRINCIPLES

The charging of calls is based on the following criteria:

the rate plan associated with the Account Profile andAccount object. Characterises the pricing policy applied to

one or more accounts. the rate code according to the time of day and day of

call. the charging class according to the origin and the

destination of the call. the call duration


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IN Features, Products & Services


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Call Flow (SMSMO)

SCP/USAU MSCSMSCMobilePhone

Charge Request

Charge Request

Charge Request Response

SMS

SMS

SMS to called number

IN-SMSCProtocol: CAP1Charge Request Parameter: msisdn, called number


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Call Flow (MOCall)

IN/USAU MSC

IDP

RRBE

AC

Continue

AC_R

ERB

Release Call

Description:

IDP Initial Detection PointRRBE Request Report BCSM EventAC Apply ChargingACR Apply Charging ReportERB- Event Report BCSM

USAU - MSCProtocol: CAP2IDP Parameter: calling number, called

number, location number, cell id

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