Copyright © 2007 Telcordia Technologies, Inc. All rights reserved

Number PortabilityWorldwide Implementation Experience

Prepared for: Telcordia Contact:Gabriela LagoVice President, Latin America and CaribbeanInterconnection SolutionsTelcordia Technologies, Inc.+1 703 628 5764glagomen@telcordia.comJune 27, 2007

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About Telcordia Provider of network software and services

to the global telecom market

Proud Bell System heritage

Global leader in number portability solutions

Authoritative interconnection routing registrarfor US and Canada

Leader in service fulfillment and MVNO service delivery

Over 880 patents issued

Leadership in standards bodies and industry forums

Deep expertise in next-generationnetworks, operations, and services

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Moving To Number Portability

Number Portability is inevitable Deregulation and fair competition Strong competition in mobile markets Growing demand for “Single Number”

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

CanadaSpainSwedenSwitzerlandUSA

Hong KongNetherlandsUK

AustraliaDenmarkNorway

Belgium GermanyItaly

FinlandFranceIrelandLuxembourgPortugalUSA Austria

GreeceSouth Korea

LithuaniaTaiwan

JapanOmanPakistanSaudi ArabiaSouth Africa

CanadaEgyptMalaysiaSingapore

1994

USA &Canada

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Factors Influencing Port Rate Subscriber Awareness: Does the subscriber understand

Number Portability and know that it is available? Simplicity and Speed: How easy is it to port a number and

how long will the process take? Zero/Low Cost: How much will it cost to port my number?

0 10 20 30 40 50 60

FranceUnited

PortugalGreece

ItalySwitzerlNorwayGermanFinland

SpainSwedenNetherlaBelgium

HongUSA

IrelandAustralia

Port Durations in Days by Country

Source: ETO Report 2005

5

0.0%

2.0%

4.0%

6.0%

8.0%

10.0%

12.0%

14.0%

16.0%

18.0%

20.0%

Average Annual Port Rates for 19 Countries

Sample Porting RatesCountry Average Port

Rate p.a.

Finland 19.6%Hong Kong 15.1%Norway 8.4%South Korea 7.9%Denmark 7.6%USA 5.4%Australia 4.4%Belgium 4.2%Ireland 4.2%Sweden 2.5%Italy 2.0%Spain 1.1%United Kingdom 0.9%France 0.7%Switzerland 0.5%Greece 0.4%Netherlands 0.4%Germany 0.4%Portugal 0.1%

Average Port Rate p.a.

4.5%

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Making Number Portability Work

OperatorsRegulator/Ministry

Leverage Experience to Expect the Unexpected

Strong collaboration between Regulators and Operators is critical to success Number Portability implementation

Clear principles and transparency on cost allocation, recovery, and inter-operator tariff

Well-defined policies and business rules for porting Cost-effective, holistic, and forward-looking solution On-time, low-cost, and high-quality delivery

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Number Portability Implementation Alternatives and Deployment Rate

Source: ERO Report 2005

Solution Architecture

Centralized

Distributed

Hybrid

Routing Approach

All Call Query

Onward Routing

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Operators’ Considerations

OSS and Business

Processes

Inter-operator Processes

Network Infrastructure

Costing and Recovery Strategy

Number Portability Number

Portability

Testing and Rollout

Business & Market

Strategy

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Factors Directly Impacting Implementation Timelines Appointment of the Clearinghouse provider by the Regulator Stakeholders defining the industry business rules Operator network and business support systems readiness Operator willingness and cooperation

05

101520253035

Belgium Greece HongKong

Italy Ireland Spain

Mon

ths

Delay

Goal

Operator readiness has been a principal cause of delay

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Number Portability Success Factors – Lessons Learned

Get active involvement from all stakeholders Early involvement from planning to deployment

Go for a Centralized and All Call Query solution Centralized Clearinghouse and Database All Call Query instead of Onward Routing Scalable and adaptable for new services

Take a holistic approach Integration with Operators environments Considerations from subscriber viewpoints

Spell out the details Well-defined specification and process transparency are critical

Proactively manage implementation program – experience matters

1111

Worldwide Number Portability Presence

GreeceGreece20042004

Fixed/MobileFixed/Mobile

LithuaniaLithuania20052005

Fixed/MobileFixed/Mobile

Saudi ArabiaSaudi Arabia20062006MobilMobil

PakistanPakistan20062006

MobileMobile

South AfricaSouth Africa20062006

MobileMobile

EgyptEgypt20072007

MobileMobile

OmanOman20062006

MobileMobile

United StatesUnited States1994 1994

800 (non-geo) 800 (non-geo) 1999 1999 FixedFixed2003 2003

MobileMobileNumber

PortabilityImplementationsCanadaCanada

1994 1994 800 (non-geo) 800 (non-geo)

1999 1999 FixedFixed2003 2003

MobileMobile

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Telcordia Interconnection SolutionsNumber Portability

Number Portability Clearinghouse

Centrally managed for all providers Manage data registration process Maintain and distribute master reference data

Number PortabilityGateway

Integrate provider’s BSS/OSS and network systems with Clearinghouse

Selector Real-time database to support queries from network

elements for NP and other data

Training & Advisory Services

Number planning and administration Number Portability readiness planning

Number Management System

Administer number allocation nationwide

Service Interconnection

Service Interconnection Registry

IP Service Interconnection with IP interconnect routing data to enable service delivery via IP

Global Dialing Data with authoritative data to reduce revenue leakage and prevent fraud

TDM Interconnection with PSTN routing data

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Why Telcordia for Number Portability

Rapid Time to Launch 4-6 month deployment Localization and configuration,

NOT build from scratch Faster, minimized risk

Low Total Cost of Ownership Little up-front investment Risk sharing business model Reduced cost of service

Globally Proven Platform Proven, off-the-shelf Open, configurable, scaleable High quality & 100% on-time delivery

National Initiatives Track Record Roll-out of MNP in USA and Canada FNP/MNP deployment in 10 countries

End-to-End Expertise From planning consultation, solutions,

implementation, to operations Trusted advisor with training provided

to 100+ countries Trusted neutral provider

Expansion/Extensibility IP service interconnection for

converged services (e.g., VoIP) Revenue Assurance

R$