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MOBILE NUMBER PORTABILITY
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NTRODUCTION OF MNP( )obile Number Portability MNPllows Mobile subscribers tohange their service providerhile retaining their subscriber.umber Portability benefitsubscribers and increases theevel of competition between,ervice providers rewardinghose operators having better,ustomer service network, .overage and service quality
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FEATURES OF MNP There are three basic feature of Mobile
number portability:
Location portability.
Service portability.
Operator portability.
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LOCATION PORTABILITY
The ability of a subscriber to retain anexisting Mobile number, when shifting fromone circle to another keeping the operatorsame as before.
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SERVICE PORTABILITY It is the ability of a subscriber to retain
the existing Mobile number whenchanging from one service to anotherservice, say from GSM to CDMA services.
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OPERATOR PORTABILITY
This is the ability of a subscriber to retainwithin the same service area, an existingMobile number even if they change fromone service provider/operator to another.
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MNP IN INDIA(expected at the end of2009)
To give mobile phone users or end usersthe ability to change operators whileretaining their existing numbers
Three basic types of number portability:service, location and operator portability
Regulator to play an important role.
Neutral third party shall establish logicallycentralized database with not more than5 regionally located databases.
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NP is finally set to hit the Indian.arket by the end of 2009 nce operators become replaceable and,umber portability becomes a reality-wo things would come under focuservice quality and value added.ervices provided by operators ome operators are really excited, ,bout this model on the other hand VASlayers believe that MNP will have some.ositive impact on the VAS ecosystem
XPECTED OUTCOMES POSTMNP( & perator s VAS provider s)erspective
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his would make the entire systemery interesting and competitiveherein performance would be the key.layer
NP would affect the revenue sharingattern between operators and VAS,layers because operators would beeady to pay high prices for exclusiveontent in order to attract more and.ore customers to their brand
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t will not only allow subscriberso retain number while changing,perators but also to retain numberhile switching over from CDMA to.SM platform or vice versaMore choice means improved customerservice and reduced cost to the subscriberIntroduces competition in saturatedmarkets
From Customers Perspective:
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Results in more effective use of numberingresources
A win-win situation for a customer
Handsets locked to networks will incuradditional costs
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Terms used in numberportability
Donor network Originating network
Recipient network Database
Routing number
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Technical solutions
Deciding between different technicaloptions requires consideration of awhole range of issues: including
interconnection between networks ,call charging arrangements ,operational support system
modifications , routingarrangements in the NationalNumbering Plan etc.
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In order to arrive at a suitabletechnical solution,there are broadlytwo methods available for routing
of calls in a mobile numberportability environment:
Direct routing(also known as All call
query). Interdependent routing.(Three types)
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Interdependent routing type
Onward routing: The donor network identifies the
correct terminating mobile network
and routes the call onward to thatnetwork .
Call drop back:
The Donor network after confirmingthat the number is ported, releasesthe call back to the originatingnetwork together with informationidentifying the correct terminating
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Interdependent routing cont
QUERY ON RELEASE :
The Donor network after confirmingthat the number is ported, returns amessage to the originating network
indicating that the number hasmoved. The originating network thenqueries a database to obtaininformation identifying the correct
terminating network.
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Some points to know beforegoing to the diagram
NPDP-Number portability database:
a)Centralized
b)Internal -------:Signaling path porting enquiry
Recipient-Terminating network
Also focus is to find correctterminating network where calls tobe routed.
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DATABASE MANAGEMENT
The various technical options related tothe implementation of MNP mentionedabove involve the use of databases that
contain routing information. Thedatabases can be centralized ordistributed.
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LEVEL OF CENTRALIZATION OF
DATABASE
The database at circle/metro-wise iseasier to implement from the angle ofscalability, connectivity by thenetworks of the operators. The cost of
connectivity to the database will alsobe less in this approach.
The national level database could be asingle point of contact to portednumbers. However, theImplementation of such a nation-widedatabase raise concerns regarding
scalability, performance and
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Coming to the conclusion ofrouting..
The Direct routing solution / All CallQuery is perceived as a long-termsolution for number portability whereasCall Forwarding solution was adopted
initially when the estimated number ofportings are less.
The key advantage of Direct routing (orAll Call Query) is that it does notincrease network congestion betweenoriginating operator and the donoroperator as the ported calls are
directly routed to recipient network.
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Conclusion continues
this method eliminates dependenceon the donor network operator,thereby providing the ability tomaintain portability in the event ofdonor network operators failure or
exit from business. Therefore,direct routing is considered as moreoptimized with more efficient call
routing.
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IM P LE M E N TA T IO N IN IN D IADoT has issued mobile number portability details and the
, ,first phase will be rolled out in Delhi Mumbai Kolkata
, .and Chennai by end of 2009
,From a consumer standpoint he entire process of ( )orting a number should not take more than two 2, ( ) .orking days with a two 2 hour break in service.s 300 will be charged
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%More than 90 of Indian mobile users are on prepaid(~connections and do not have number loyalty churn
% )rate of 4 on monthly basis
( ,Operators will add a lot more nuances for instance)time bound etc to ensure that switching
/ ( ).cost experience is fairly high as ARPU is sliding
. The service providers are not keen on itsintroduction as that would require a substantialinvestment in upgrades to the routing and the billing.mechanisms
The cumulative losses for the Indian GSM mobile
,players would be around Rs 8 000 crore and increased.investments could mean more bad debt
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India
PROS AND CONS
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SMS Management for MNP
In GSM MAP responsibility forSM delivery to a mobilecustomer lies at all times withthe originating SMSC, and can
not be passed to any otherSMSC. The generalarchitecture for inter-carrierSMS via GSM MAP is shown inthe Figures 1 and 2, and canbe used in any of thefollowing cases:
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National GSM to nationalGSM
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International GSM tonational GSM
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Routing principles
The GSM MAP routing principles will ensure that under a MNPenvironment:
(a) messages are routed directly to the correct recipient network (fornationally originated SMS);
(b) messages are routed to the network holding the number block allocation ofthe destination number (only for internationally originated SMS) and
(c) circular routing is avoided.
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The plan presumes that messages originated from an international networkto ported numbers will be delivered via donor based routing, asinternational networks cannot be expected to access an Australianmobile number portability database prior to routing the message.
When porting occurs across GSM and CDMA technologies, SMS can notbe fully supported using donor based routing. Delivery between theoriginating and donor carrier, or donor and terminating carrier may not
be supported, even if delivery between the originating and terminatingcarrier is supported. Therefore donor based routing using GSM MAPcan not deliver equivalent service.
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Traffic case Donor based routing Direct routing
GSM MAP Routing Cases
It should be noted that a customer with a ported number will be able toreceive an internationally originated SM only from the commoninternational roaming partners of the donor and recipient network,
where connectivity between donor and recipient exists see AppendixA.
Addressing across point of interconnection
The number structure used for the addressing across the Point ofInterconnection (POI) must be in the international format as defined in
ITU-T Recommendation E.164.
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Two cases arise where unsuccessful delivery is due to the implementation ofMNP. The error codes that apply to each case are as follows:
(a) SM delivery to a mobile number ported to a network where there is nointer-carrier SMS connectivity will be unsuccessful. The error code to be
returned to the originating SMSC shall be any permanent error code fromthe pertinent specification.
(b) Due to the misalignment of data in routing databases,sendRoutingInfoForShortMsg and setMessageWaitingData message may
be delivered to the wrong network after the originating network has performed a lookup. The receiving network can deal with the error oneither MAP or SCCP level. The MAP level error treatments must followETS 300 536: October 1996 (GSM 03.40 v 4.13.0). The SCCP level errortreatment must follow ITU-T SCCP suite of specifications.
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What is ClearingHouse?
The Centralized Clearinghouse is a message
processing system through which serviceproviders communicate using the same set of
rules for handling porting requests andexchanging information required for portingnumbers.
This centralized clearing house will be managedby third party to avoid conflict of interest.
The Number Portability Database will have themobile numbers of all mobile users.
All mobile service providers will then link theirnetworks with that of the MCHAs(MobileNumber Portability Clearing House
Administrator) and NPDB(National PortabilityDatabase .
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Role Of ClearingHouse
National Number Portability Clearing Housea regulatory body responsible formanaging port-in/out numbers across theoperators in India.
It maintains a database with Port-In/Outinformation across the country /operators.
It also maintains historical trail of porting for
audit trail. This database is pushed / pulled into
Reference Database also called RoutingDatabase which will assist network
elements (MSC) to direct each call to their
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Role Of ClearingHouse
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Process
Subscriber contacts new operators andasks his number to be ported
New operator submits number port
request to clearing house The clearing house informs the old
operator
Clearing house informs all operators
that the number is ported Number Portability Database will have
all mobile numbers.
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Notification
Notification Process Once portingwindow is
closed, notification needs to be
broadcasted to: Subscriber (activation of new service)
All Mobile Operators (National)
All Fixed-line Operators (National) National Long Distance (NLD)
International Long Distance (ILD)
Content Providers (VAS)
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MCHA in India
Department of Telecommunications(DoT) has chosen two providers Syniverse Technologies and
Telcordia Technologies - for theimplementing MNP.
Both the companies will providesolutions for 11 circles each of the
total 22 circles in the country. Syniverse:-North & West.
Telcordia:-South & East.
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MNP Implementation Factors
How high is demand for MNP from bothsubscribers and operators?
How big is market size? Is it below theminimum threshold market size?
What is the level of competition? Howmature is the market?
What kind of pricing model is in place?
Will MNP spur further competition? How strong and independent is theregulating body?
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MNP Global Success
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Success Factors Study
Country
Date
of impleme
ntation Time to port
User cha
rge (US
$)
First
contact Publicity
Australia Oct-013 hours 6.25Recipient
NRA publicity at
start
Finland Aug-03
5
working Days Recipient
Actively marketed
by Operators
Hong
Kong Mar-991 -2 days Recipient
Actively marketed
by NRA and new
operators
Sweden Aug-01
10 working
days Variable Recipient Some
U.K Jan-99
5
working Days 2.5 Donor Minimal
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Success Factors.
What is success?High porting ratesSuccess is achieved through:
Low porting times
Almost zero costs to customers
Publicity by regulators
Simple for subscriber Entrance of new or disruptive
competition
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