VIRTUAL LOCAL VIRTUAL LOCAL NUMBER

Agendag

Introduction Benefits

Subscriber Operatorp

Business Flow Architecture Call Flows Call Flows Features

Business Propositionp

Target Segment Cost conscious In-roamers

Refrain from using mobile services Results in low Average Revenue Per In-roamer for the operator

In-roamers who swap Home SIM cards with Foreign SIM Cards (Operator) Miss Voice and SMS on the Home Number

Home S bscribers looking for temporar irt al n mbers Home Subscribers looking for temporary virtual numbers For putting up in classified ads For Dating/flirting Private usePrivate use

Virtual Local Number

Offers a virtual number to an in-roamer in the Operator network

Network based solution SIM independentp Handset independent

Prepaid number Easy to getEasy to get Easy to recharge

Subscriber Benefit

Substantial cost savings for calls made locally or to a third country, with all the advantages of prepaid charging

Inbound roamers no longer need to procure new SIM (LOCAL PREPAID)

Ability to receive incoming calls & SMS on the subscribers home number

Present a multi - location presence p Access to visiting operators top-up scratch card to charge

mobile originated prepaid roaming call

Operator Benefitp

Increase in the (virtual) number of prepaid subscribers Service differentiator Seamless and economical roaming service leads to roamers

stickiness No need for additional SIMs (save cost) Increased usage of telephony by the in-roamer

Compensates for the reduced calling rates Compensates for the reduced calling rates No tie up required with any foreign operator

Business Flow

Activation via IVR, SMS, USSDPurchases a local Number

OperatorNetwork

In Roamer In Roamer

VLN Prepaid SystemDBSMSC

Dear Roamer, Your new number is +6591123456. Make calls and enjoy roaming at local charges.

HI, John, I am in Singapore

DB

HLR

SMSC

Revenue Model

Cost saved of allotting a physical SIM Increase in the calls by in-roamers Additional rentals

Frequent in-roamers to keep their virtual number active for their Frequent in roamers to keep their virtual number active for their subsequent visits

SWOT analysis vis--vis i d/i t ti l isim card/international roaming

Strength Save cost of physical SIM cards to a temporary in-roamer In-roamers generally do not carry additional handsets where

in they put in the local SIM y p Phone numbers stored in the home SIM can still be accessed

for reference and to dial (though after adding a prefix) as well. In roamers are still accessible on their home numbers In roamers are still accessible on their home numbers Weakness Call numbers need to be prefixed

H it d t tt if l l b d t b However, it does not matter if a local new number need to be dialed that is not present in the home SIMs phone book (e.g., a tourist may dial locally for a cab service, food delivery, etc.)

SWOT analysis vis--vis i d/i t ti l isim card/international roaming

Opportunity Increase in in-roamers usage

Tourists get the feeling

Threat Cannibalize high revenue generating international roaming rates

However, its proven that revenue from the growth in revenue by offering cheaper rates outgrows the same by offering higher rates to a few end usersa few end users

Deployment Architecturep yGT Based Routing(MAP)

Point Code Based Routing (ISUP)

IP Connectivity

GT based Routing CAP/INAP

Voice Loop Back

USSD CentreE-Recharge

GMSC

VLN

HLRidPrepaid

SCP

Call Flow Mobile Terminated Call

MSC/SSF VLNVLR HLR

Prepaid

IAM M2

SRI

SRI Ack T-CSIIDP M2 ATI M1

ATI Resp

IDP IDP M2Connect M2

MSRN M1MSRN M2 PRN M1

PRN Ack (MSRN) -M1M1

MSRN Ack -M1Connect M1s MSRN

Call is connected to VLN at this point. The voice channels are patched. Online rating is done for prepaid subscribers.

IAM M1

REL ER-BCSM

Disconnect ER-BCSM

Release Call Release

C ll Call

Call Flow Mobile Originated Callg

GMSC/SSFVLN

VLR HLR

Prepaid

IAM IAM (M1,xyzD) SRI

SRI Ack O-CSI M1

IDP (M1, xyzD)IDP (M1, D)

Connect (M1, D)INAP_Connect M2 D

Call is connected to Virtual MSISDN at this point. The voice channels are patched. Online rating is done for prepaid subscribers.

IAM D

REL ER-BCSM

O_Disconnect ER-BCSM

Release Call

l llRelease Call

SMS Supportpp

Mobile Terminated SMS VLN will be acting as current as MSC/VLR for the Local Numbers The MT SMS will get delivered to VLN system which will further

deliver on Mobile Mobile Originated SMS

Network should have SMS-Routers which can route the SMS based on destination numbers

Life Cycle of the numbery

Activation Welcome SMS USSD IVR Visiting a Retailer

Recharging Using Scratch Cards or Electronic Top Upg p p

Deactivation After the validity gets over

Requirements From Operatorq p

For all the MT calls to M2, VLN should be triggered on INAP CS-1/CS-2/CAP

MO calls with a prefixed number, VLN should be triggered using INAP CS-1/CS-2/CAP

SCP should have the rating configured with the prefixed numbers for rating MO and MT calls with M2

HLR should be programmed M2 with dummy IMSI and as a p g yCAMEL subscriber

The SCP address of the M2 configured as VLN

Features

Temporary Local Number Online Charging with prepaid SCP Inbuilt Rating Engine SMS Notification SMS Notification Top-Up Notification SMS/USSD/IVR/WEB Interface Bl k Li ti Black Listing SNMP Support Extensive Activity Reporting Customer Care Interface

High Availabilityg y

Alarms

Hardware Failures Link Failures Application Shutdown Database Failure Database Failure Disk Size Critical Errors

Alert Mechanisms

SNMP SMS E-Mail Beep Sound Beep Sound

Thank you