MOBILE NUMBER PORTABILITY--MNP

Mobile Number Portability

Seminar byVipulMIT PUNE

Seminar Guide

Agenda What is Mobile Number Portability? Its type and related basic definitions. Routing algorithms to implement MNP MNP’s effect on economy and telecom sector Future Scope Conclusion regarding MNP technology

1

Introduction What is Mobile Number Portability?

– It enables the subscriber to switch between services, locations and

operators while retaining the original number.

– This scheme provides freedom and convenience for customers to get

the best services.

– MNP is abbreviation of Mobile number portability.

Mobile Number Portability2

Types of MNP• 1.Operator Portability:- From one operator to another e.g. BSNL TO IDEA ,AIRTEL TO

VODAFONE and vice-versa etc.• 2.Location Portability:-

From one location to another • 3.Service Portability:-

From one service to another e.g. prepaid to postpaid.


Basic Definitions and terminologies1. Donor Network 2. Donor Service provider

3. Database

4. End User Number


5.Originating Network

6.Recipient Network

7.Routing Number

8.Serving Network

Basic Definitions and terminologies


MNP Guidelines I. A mobile number can be ported only if it is still in operation.II. Pre-paid, GSM , CDMA numbers shall be portable. However, any credit on the

card will be lost.III. Calling Line Identification Presentation (CLIP) shall be portable.IV. Connected Line Identification Presentation shall be portable.V. Each company or operator should provide the routing arrangements needed

to port the mobile number.VI. Once you port the your number you can not port it to another operator within

90 days.VII. Process should follow the rules and regulations announced by the TRAI i.e.

Telecom Regulatory Agency of India.


Components of MNP

Central Reference Database (CRDB):- The CRDB is the database where the ported numbers are stored and take

care of the network update and administration message flow between the various operators.

CRDB can be active or passive: Active: Store, distribute and validate message

Passive: Store only.


Figure: Central Reference Database

Components of MNP


Operator A

MCH

Operator BNP Request NP Request

NP Accept NP Accept

NP Exec NP Exec

NP Ready NP Ready

NP BroadcastNP Broadcast

NP Done

Example of Porting Process

T1

T3

T5

T2

T4

Validationof

Request

Activation and

Update Routing Info

Deactivationof

Service

UpdateRouting Info

Initiationof

Execution


How MNP works Internally...• Technical solutions and routing algorithms used to implement the MNP1. IN Based Solutions:-

i. Onward routingii. Call drop Backiii. Query on releaseiv. All call Query

2. Signaling Relay

3. Number Portability Clearing house


Onward Routing

Figure: Onward Routing


Advantage:- No centralized database needed Internal NPDB can be stand alone and contains only the ported number from the donor

network. Good solutions for short term or if a small percentage of subscribers chooses to do number

portability. Disadvantage:- Completely relies on donor network during call setup. Requires setting up two call segments.

Advantages and Disadvantages


Call Drop Back


Figure: Call Drop Back Solution

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Advantages:- Centralized number portability database not needed. Internal NPDB can be stand alone and contains only ported number from

donor network.

Disadvantages:- Involves the donor network during call set up. Circuits are reserved temporarily during call setup.



Figure: Query on Release

Query on Release


Advantages: Centralized number portability database used for call routing decisions. Disadvantages: Involves the donor network during call set up. Circuits are reserved temporarily during call setup.



All Call Query

Figure: All Call Query


Advantages: Centralized number portability database used for call routing decisions. Does not involve the donor network. Efficient in usage of switch, port and circuits. Good long term solution, especially when most subscribers choose number

portability. Disadvantages: Relatively high portability set up cost. High traffic to NPDB from originating switches.



Figure: Signaling Relay Solution

2.Signaling Relay


Advantages: This solution utilizes a standard interfaces and signaling functions in order

to minimize the need for further system development. This solution supports speech, fax, data, short-message service, call-back

when subscriber is no longer busy and optimally routed calls.

Disadvantages: This solution is very specific for GSM. This solution is not applicable to other mobile network technology such as

CDMA.



3.Number Portability Clearinghouse


Figure: NP Clearinghouse

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Advantages: Elimination of reliance on the donor Service provider, thereby providing

the ability to maintain portability when Service providers fail and exit the market.

Optimized routing, and the resulting elimination of the costs of additional conveyance, will serve as an inducement to win end users, fostering competition.

Disadvantages: Since this solution is newly introduced in some countries, therefore this

may be considered as disadvantages, because of unawareness of solution.



Effects of MNP• Static Effects: Retail Prices:

Price Elasticity:

Termination Charges:

• Dynamic Effects: Investments:


Statistical Analysis of MNP


Future Scope and Conclusion• The success of the implementation of MNP would depend on a number of

factors including

Porting Time: Porting Fees: Better Price Deals:

• MNP allows effective utilization of numbering resources, as one customer is bound to his mobile number for longer time.

• So, if above points are taken into consideration there is better future for this technology in India.


References Moch Fahru Rizal, ST. MT. Telkom Institute of Technology Bandung, Indonesia Ir. A.

Ali Muayyadi MSc PhD Telkom Institute of Technology Bandung, Indonesia, “Techno-Economic and Regulation Impact Analysis of Mobile Number Portability Implementation”, 2013 International Conference of Information and Communication Technology (ICoICT)

Zeljka Kardum Ban 1, Gordan Jezi, “Introducing fixed-mobile number portability”, Faculty of Electrical Engineering and Computing (FER) Zagreb, 2011.

Pooja Chaturvedi, Rajni Billa “Comparison of Mobile Number Portability Schemes” ,2010.

Deepankar Medhi, Karthikeyan, “Network Routing: Algorithms, Protocols, and Architectures”, Elsvier Inc., 2010.

Recommendations by TRAI on Mobile No. Portability.


Thank you…!!!

Any Questions?