Mobile Number Portability

By

Kunal Oza

Number portability enables a subscriber to switch between services, locations, or operators while retaining the original mobile number, without compromising on quality, reliability, services and operational convenience.

Number portability definition

Number

Portability

Operator

Portability(Between Operators)

Location

Portability(Between Service

Areas)

Service

Portability(Between Wire line &

Mobile)

Fixed Number Portability

Mobile Number Portability

Types of number portability

Need of Number PortabilityConvenience of customer to personalize the same number across the Operators, Locations and Services. (No age for your number.)

Subscriber’s benefit: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…..)

Operator ’s benefit:Healthy competition and an opportunity to explore more services/features.Operator with best QOS will gain the subscribers.Introduction of innovative service.

Mobile Communication

BTS BSC

MSC

BSCBTS

MNP Terminologies related to network

Originating Network

Originating Network

Donor Network

Donor Network

Recipient Network

Recipient Network

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 database and provides routing instructions)

NPDB

How It Works?

NPClearinghouse

NP GatewayNP GatewayOperatorA

OperatorB

Number Portability

Clearinghouse

Clearinghouse is a centralized system that interconnects mobile operators

Defines number porting business rules and procedures Utilize the system to implement number portability. Provides statics and history for ported numbers

Number Portability Gateway

It is located at the Operator Premises Interface towards the Clearing house Manages the porting process Interface towards operators OSS/BSS

Real-TimeNetwork Query

Real time query response system for call routing to ported numbers

Setup by Clearing house for multiple operators

NPClearing house

Call Routing - All call query

Whenever a call is originated, the Originating n/w will query its NPDB (Number Portability database)

Originating

Network

Originating

Network

Donor

Network

Donor

Network

Recipient

Network

Recipient

Network

ORIG NW

Database

ORIG NW

Database

LR

N +

Cal

led

Nu

mb

er

Cal

led

Nu

mb

er

ACQ (All Call Query Method) is called as direct routing, The Donor Network will not be part of the entire call flow

LRN + B-MSISDN

Based on the prefixed LRN the Originating n/w will route the call to the recipient n/w without involving the Donor network.

NPDB will acknowledge the query by adding a prefix LRN (Location Routing Number) to the called number.

Microsoft Excel Worksheet

LRN codes circulated by TRAI

North Eastern States

Gujarat

Rajasthan

Maharashtra & Goa Orissa

Andhra Pradesh

Karnataka

Tamil Nadu

Kerala

Madhya Pradesh

Uttar Pradesh E

Bihar

West Bengal`

Punjab

Himachal Pradesh

Haryana

Jammu & Kashmir

Uttar Pradesh

W

CHENNAI

MUMBAI

DELHI

KOLKATA

Zone II

Zone I

Zone I – MNP Clearing House

Syniverse Technologies

Zone II – MNP Clearing House

MITS(MNP Interconnect Telecom

Solutions)

Geographical distribution of Indian Telecom market

How to Switch - Rules:•The subscriber, who likes to avail this service, need to send a SMS from his mobile to 1900.•Once the customer sends SMS, he will be receiving a unique porting code from the current service provider.•Then he need to fill the application in a particular format and mention the new service provider, the customer would like to subscribe for.•The new service provider will collect the information about the user from the current operator. A time period of seven days will be taken for the complete transfer of mobile number to the network of the new mobile operator.•As a transformation charge for the new operator the subscriber has to pay the amount of Rs 19.

!dea NP Request

NP Accept

NP Done

Model Porting Process

UpdateRoutingnfo

NP Request

NP Accept

Validationof

Request NP Exec

Initiationof

Execution NP Exec

NP Ready NP Ready

Deactivationof

ServiceNP Broadcast NP Broadcast

Activation and

Update Routing Info

National3rd partyclearingHouse.

E.g. AirTel Customer Ported to Idea Network.

AirTel

UpdateRouting Info

Validationof

Request

Deactivationof

Service

Regulatory guidelinesTRAI has issued the “Regulation” for MNP in India which includes

Subscriber Eligibility Criteria

Rights & Responsibilities of Donor Operator,

Recipient Operator & MNP Clearing House

SubscriberEligibilityCriteria

Completed 90 days

from date of

activation

Completed 90 days from the last porting

Subscriber Eligibility Criteria

Rights &

responsibilities of

Donor Operator,Recipient

Operator&

Clearing House

Donor Operator

Recipient Operator

MNP Clearing House

• Maintain records of all Port-out cases• If customer does not clear the dues,

get the number deactivated thru Recipient Operator

• Pay Per Post Transaction charges to MCH

• Deactivate the number upon Donor Operator’s request

• Manage Porting Process• Resolve inter operator issues• Number reversal to “Range Holder”• Maintain records of all Ported numbers

Operator Criteria:

Impact on Network due to MNP

Additional 25% signaling load will increase from the day1 of MNP launch.Changes in tariffs Monitoring and interception related issues.Software development number table would be modified.

Thanks & Happy

learning…