virtual local number
DESCRIPTION
vlnTRANSCRIPT
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VIRTUAL LOCAL VIRTUAL LOCAL NUMBER
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Agendag
Introduction Benefits
Subscriber Operatorp
Business Flow Architecture Call Flows Call Flows Features
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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
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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
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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
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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
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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
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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
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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.)
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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
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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
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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
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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
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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
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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
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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
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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
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High Availabilityg y
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Alarms
Hardware Failures Link Failures Application Shutdown Database Failure Database Failure Disk Size Critical Errors
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Alert Mechanisms
SNMP SMS E-Mail Beep Sound Beep Sound
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Thank you