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MOBILE
NUMBER
PORTABILITY
INTRODUCTION
"Mobile Number Portability"means the facility
which allows a subscriber of a mobile telephone
service to retain his mobile telephone number
when he moves:
From one mobile telephone service provider to
another, irrespective of the mobile technology
OR
From one mobile technology to another of the
same mobile telephone service provider, within
such limits as may be permitted by the licensor
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MOBILE
NUMBER
PORTABILITY
FEATURES OF MNP
The government has defined and mandated three basic
features of number portability.
Service Provider Portability: Service provider portability
or Local Number Portability is the ability of end users to
retain existing directory numbers at the same location as
they change from one service provider to another.
Location Portability: Location portability is the ability of
users of telecommunications services to retain existing
directory numbers without impairment of quality,
reliability, or convenience when moving from one physical
location to another.
Service Portability: Service portability is the ability of
users of telecommunications services to retain existing
directory numbers without impairment of quality,
reliability, or convenience when switching from one service
to another service provided by the same carrier.
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MOBILE
NUMBER
PORTABILITY
PRESENT SCENARIO
Presentlyin India, Number portability is
permitted only within a Local Service Area
(LSA) and not across LSAs
With MNP Technology, it will be possible for
users to change their LSA as well as service
provider without a change in the cell number
This means that the subscriber can change
(i) Operator say Airtel to Idea, or
(ii) Technology – GSM to CDMA or vice versa,
or
(iii) Both say Reliance CDMA to Vodafone GSM
While retaining his mobile number
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MOBILE
NUMBER
PORTABILITY
SOME FACTS REGARDINGMNP
Out of several types of number portability DoT
has recommended Mobile Number Portability
(MNP) for all mobile service operators
Two central clearing houses for MNP database
covering North-West zone (Syniverse) and South-
East zone (Telecordia)
These CCH will download the MNP database in
operators NPDB on daily basis
MNP will be restricted only for intra circle
operators
MNP will be allowed between CDMA and GSM
operators
ACQ (All Call Query) direct routing method to
implement MNP
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MOBILE
NUMBER
PORTABILITY
BASIC TERMINOLOGY (1/2)
•Theoperator from whose network
the subscriber is porting out
DONOR
OPERATOR
• The operator who will be providing
mobile service to the subscriber
after porting
RECIPIENT
OPERATOR
•A number which has not been ported
•For example, a 94- series number
belonging to BSNL
NOT
PORTED
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MOBILE
NUMBER
PORTABILITY
BASIC TERMINOLOGY (2/2)
•Number ported into service
provider’s network from another
network (say, a 98 series BSNL
subscriber)
PORT IN or
IMPORTED
• Number Ported out to another
network from BSNL (say, a 94
series subscriber of Airtel )
PORTE
D OUT
• Other Operator subscriber not
known to be ported
• For example, a subscriber of Idea
who may or may not have ported to
Airtel
FOREIGN
NUMBER
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MOBILE
NUMBER
PORTABILITY
THE LOCATION ROUTINGNUMBER
It refers to a code assigned to every Access
Provider for the purpose of implementing Mobile
Number Portability
These are 4 digit codes and have been assigned by
DOT
They have been assigned LSA wise, Operator wise
and technology wise
For example, BSNL has been allocated 42 codes in
total – 21 for GSM and 21 for CDMA.
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MOBILE
NUMBER
PORTABILITY
LOCATION ROUTING NUMBER
ASSIGNMENT
The table below shows an example of the
assignment of Location Routing Numbers across
various service operators
Sl.
No.
Name ofLicensee Company Service Area Type of
Licence
Mobile
Network
LRN
1 BharatSancharNigam Ltd. HARYANA CMTS GSM 2397
2 BharatSancharNigam Ltd. HARYANA CMTS CDMA 2548
3 Bharti Airtel Limited Andhra Pradesh UAS GSM 2724
4 Bharti Airtel Limited Assam UAS GSM 2725
5 BPL Mobile Comm. Ltd. Mumbai CMTS GSM 3026
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MOBILE
NUMBER
PORTABILITY
MNP ZONES ANDMCHA’S
Zone 1 - STIPL Zone – II - MITS
Delhi Kolkata
Mumbai T.N including Chennai
Maharashtra Andhra Pradesh
Gujarat Karnataka
Haryana Kerala
Punjab Madhya Pradesh
Rajasthan West Bengal
Uttar Pradesh (E) Assam
Uttar Pradesh(W) Bihar
Himachal Pradesh North East
Jammu & Kashmir Orissa
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MOBILE
NUMBER
PORTABILITY
ELIGIBLITY CRITERIA FORPORTING (1/2)
Every subscriber shall be eligible to make a
request for porting his mobile number provided
that:
A period of 90 days has expired from the date of
activation of his new mobile connection / 90
days from last porting
There are no outstanding payments due to the
Donor Operator by way of pending bills issued
as per the normal billing cycle but before the
date of application for porting
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MOBILE
NUMBER
PORTABILITY
ELIGIBLITY CRITERIA FORPORTING (2/2)
The subscribers are required to fulfill the
following criteria:
There is no pending request for change of
ownership of the mobile number
The mobile number sought to be ported is not
sub-judice
Porting of the concerned mobile number has not
been prohibited by a Court of Law
In case of Prepaid accounts, the balance amount
of talk time, if any, at the time of porting shall
lapse
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MOBILE
NUMBER
PORTABILITY
THE SUBSCRIBER VIEWOF
PORTING
Subscriber desirous of porting his mobile number shall make
a request in writing to the concerned Recipient Operator in
specified format
The subscriber shall pay the porting charge, if any
The Recipient Operator, treats the customer in the same way
as that for a new subscriber
The Recipient Operator shall ask the subscriber to send a
SMS to Donor Operator using short code 1900 from the mobile
number which is sought to be ported.
An example of the SMS to be sent is “PORT 9896312345 to
1900
Upon receipt of the SMS, the Donor operator shall forthwith
send back a reply SMS containing a Unique Porting
Code(UPC) through an automated system.
Subscriber will fill the UPC in the Application form for
porting.
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MOBILE
NUMBER
PORTABILITY
THE UNIQUE PORTINGCODE
Unique Porting Code will be of 8 characters –
ABCDEFGH; where
A: Service provider code
B: Service area code
The List of codes for each service provider and
service area are issued by TRAI
C – H: To be assigned by the donor operator and
will consist of 1 to 9, A-N & P-Z only, and small
letters and the alphabet ‘O’ shall not be allowed.
UPC allocated to a subscriber shall be valid for a
period of fifteen days from the date of request or
such time till the number is ported out, whichever
is earlier, for all service areas
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MOBILE
NUMBER
PORTABILITY
THE CONDITIONS ONCALLER LINE
IDENTIFICATION (CLI)
CLI is a service supplied by most phone
providers, whereby your phone number is
transmitted when a phone call is made. With a
CLI-equipped phone, it is possible to see who's
calling before answering
In case the subscriber’s CLI does not match with
the ten digit mobile number on sending the text
message, UPC shall not be allotted but a
message shall be generated to inform such
subscriber that the CLI does not match with the
mobile number
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MOBILE
NUMBER
PORTABILITY
THE RECIPIENT OPERATORVIEW
Subscriber shall intimate the UPC to the Recipient
Operator
Recipient Operator shall, within a period of twenty four
hours, forward the mobile number, the corresponding
unique porting code and the date on which porting
request is made by the subscriber, to the concerned
MCHA.
A subscriber may, withdraw porting request by informing
the Recipient Operator in writing within twenty four
hours of making a request for porting, but he shall not be
entitled to any refund of the porting charge paid by him
The Recipient Operator shall be liable to pay Per Port
Transaction charge in respect of each porting request
forwarded by it to MCHA
SIM card is required to be changed
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MOBILE
NUMBER
PORTABILITY
THE MOBILE CLEARINGHOUSE ADMINISTRATOR
(MCHA)
The Centralized Clearinghouse is a message processing system through
which service providers communicate using the same set of rules for
handling porting requests and exchanging information required for
porting numbers
On receipt of the porting request MCHA shall verify whether a period of
ninety days has elapsed from the date of its last porting and if any
porting request in respect of the same mobile number is already pending
In case the porting request is found eligible MCHA shall forthwith
forward the details of such request to the Donor Operator for seeking his
clearance for such porting.
Donor Operator will verify if the porting is permissible as per the rules
defined in the TRAI regulation dated 23.9.09 like UPC is same,
Outstanding dues are paid etc.
Donor Operator will verify the above and communicate to MCHA
accordingly within 24 Hrs
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MNP Terminologies relatedto network
Originating
Network
Donor
Network
Recipient
Network
NPDB
Originating Network : Network of the calling party
Donor Network : Previous subscription of Called party
Recipient Network : Present subscription of Called party
NPDB : Number Portability Data Base (maintains
portability and provides routing instructions)
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MOBILE
NUMBER
PORTABILITY
SERVICE ORDER ADMINISTRATION
(SOA)
Service order administration provides the functionality
to interface to carriers’ order and provisioning systems
in order to update the NPAC for access by all other
carriers.
The SOA’s primary functions include subscription audit
request/management; data administration; data
transfer to the NPAC; report generation; bulk-file parse
and upload; subscription tracking; legacy order entry
interface; and logging.
Depending on an individual service provider’s
requirements, the SOA may interface with multiple
NPACs to allow for nationwide number portability.
The carrier-to-SOA connection may be custom-designed
to interface with existing carrier order entry systems.
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MOBILE
NUMBER
PORTABILITY
NUMBER PORTABILITY ADMINISTRATION
CENTER(NPAC)
The NPAC is designed to receive information from both the
incumbent and new service providers, validate the information
received, and download the new routing information when an
activate message is received indicating that the customer has
been physically connected to the new service provider’s network.
Each ported number is a subscription version within NPAC that
contains the new service provider’s ID, the location routing
number (LRN) associated with the new switch, and routing data
associated with additional services the customer may request.
The NPAC provides management, administration, oversight, and
integration of NPAC operations, hardware and software
development, and all maintenance related functions.
It is responsible for meeting performance standards established
by the industry and providing user and technical support services
and training for industry participants on an ongoing basis.
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MOBILE
NUMBER
PORTABILITY
LOCAL SERVICE MANAGEMENTSYSTEM (LSMS)
The local service management system is a fault-tolerant
hardware and software platform that contains the
database of information required to enable routing and
call completion to ported telephone numbers.
The primary functions of the LSMS are subscription
management, network data management, service
provider data management, error processing and
notification, transaction event logging and reporting,
transmission of activation/deactivation events to the
network elements, and audits.
The LSMS interface with the NPAC provides real-time
activation/deactivation information upon download
from the NPAC and can send responses to the NPAC
once a message or subscription version is processed.
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MOBILE
NUMBER
PORTABILITY
OTHER ELEMENTS OFTHE
ARCHITECTURE
Service Control Point Management System: The service
control point management system provides interface services
between the LSMS and the SCP. The SCP MS may or may not be
physically integrated with the SCP.
Number Portability Database (NPDB): The number
portability database contains the routing information necessary to
support number portability. The NPDB provides the LNP
association between the called party and the carrier LRN,
identifying the switch to which the call should be routed. The
NPDB stores all ported numbers within the ported domain.
Signal Transfer Point (STP): The signal transfer point receives
the LRN query from the SSP/MSC and routes the query to the
appropriate LNP SCP
Mobile Switch Center (MSC): The exchange carrier owns and
operates the mobile switch center. Service switching points must
be able to generate an LNP query to the SCP (via the STP
network) when a call is placed to a telephone number in a ported
domain.
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MOBILE
NUMBER
PORTABILITY
(ACQ) ALL CALLQUERY- DIRECT ROUTING METHO
The MNP in India will
be implemented
through All Call Query
– Direct Routing
Method
Whenever the call is
originated, the
Originating n/w will
query its NPDB
NPDB will
acknowledge the query
by adding a prefix
(LRN) to the B
MSISDN if the B
MSISDN is ported out.
Based on the prefix
(LRN) the Originating
n/w will route the call
to the recipient n/w
without involving the
Donor network.
ACQ is called as direct routing as
donor network will not be included
during entire call flow.
Originating
Network
Donor
Network
Recipient
Network
ORIG N/W
NPDB
LRN
+
B-MSISDN
B-MSISDN
LRN + B-MSISDN
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MOBILE
NUMBER
PORTABILITY
ADVANTAGES OF MNP
BENEFITSFOR SUBSCRIBERS
Convenience of customer to personalize
the same number across the Operators,
Locations and Services. (No age for your
number.)
Better QOS, more features and services,
better tariff plans for customers.
No cost incurred to notify the new
contact details to the others ( friends,
family, business…..)
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MOBILE
NUMBER
PORTABILITY
ADVANTAGES OF MNP
BENEFITSFOR OPERATORS
Healthy competition and an opportunity
to explore more services/features
Operator with best QOS will gain the
subscribers
Introduction of innovative service