ITU ASP COE Workshop 201010 v3

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5 Ιουλ 2012 (πριν από 5 χρόνια και 1 μήνα)

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TITLE
ITU ASP COE TRAINING WORKSHOP
International Roaming in
Celcom Axiata
Berhad
Celcom Axiata
Berhad
-International & Domestic Roaming
COMPANY CONFIDENTIAL
Presented by
Siti Norohadzniati Mohammad Noor
GM/Head of IR Engineering Services
CelcomAxiata Berhad
06
th
October 2010
Content
•Corporate info
•International Roaming Implementation
•Flow Diagram for International Roaming
•Evolution of International Roaming
•Prepaid Roaming
•Steering of Roaming

Domestic Roaming in Malaysia

Domestic Roaming in Malaysia
COMPANY CONFIDENTIAL2
CELCOM CORPORATE MILESTONE
AXIATA TV ADVERTISEMENT
COMPANY CONFIDENTIAL4
Axiata.mpg
BEING PART OF AXIATA
•Axiata owns 100% shareholding of Celcom Axiata Berhad
•Listed on the Main Board of Bursa Malaysia Securities Berhad
•One of the largest Asian telecommunication companies focused on high
growth low penetration emerging markets. Axiata has controlling interests in
mobile operators in Malaysia, Indonesia, Sri Lanka, Bangladesh and
Cambodiawith significant strategic stakes in India, Singapore, Iran, Pakistan
and Thailand
and Thailand
•The Group, including its subsidiaries and associates, has over 130 million
mobile subscribers in Asia and serves the needs of Asia by providing
affordable and innovative mobile services covering over 1.5 billion people
across 10 countries
•Recorded revenue of RM13.5 billion (as of Dec 2009)
COMPANY CONFIDENTIAL5
Content
•Corporate info
•International Roaming Implementation
•Flow Diagram for International Roaming
•Evolution of Roaming
•Prepaid Roaming
•Steering of Roaming

Domestic Roaming in Malaysia

Domestic Roaming in Malaysia
COMPANY CONFIDENTIAL7
WHAT IS INTERNATIONAL ROAMING
Traditional GSM Roaming is defined (cf. GSM Association
Permanent Reference Document AA.39) as the ability for a
cellular customer to automatically make and receive voice
calls, send and receive data, or access other services,
including home data services, when travelling outside the
geographical coverage area of the home network, by means
of using a visited network. This can be done by using a
communication terminal or else just by using the subscriber
identity in the visited network. Roaming is technically
supported by mobility management, authentication,
authorization and billing procedures.
Source: Wikipedia
COMPANY CONFIDENTIAL8
Operator
Operator Operator
Operator B (Visited)
B (Visited)B (Visited)
B (Visited)
Operator Operator Operator Operator A (Home)
A (Home)A (Home)
A (Home)
SS7 Network
HLR
HLR
MSC
MSC
ROAMING PARTNERSHIP
GPRS
Backbone
IP Network
GPRS
Backbone
IP Network
BGBG
SGSN
GGSN
GGSN
DNSDNS
SGSN
Intranet
Intranet
BSS
BSS
GPRS Roaming
Backbone
Internet
COMPANY CONFIDENTIAL9
ROAMING SERVICES
VoiceVoice

Automatic
International
Roaming

Roam*120*
(“Value” Voice
Roaming)
SMSSMS

SMS Roaming

Inter-operator
SMS

Inter-standard
SMS
DataData

GPRS/MMS
Roaming

Inter-operator
MMS

Blackberry
VASVAS

Roaming
Welcome
SMS/Bon
Voyage SMS

Short Code
Dialing
COMPANY CONFIDENTIAL10
Roaming)

USSD Services

Camel Prepaid
Roaming
SMS

Blackberry
Roaming

Broadband
Roaming

HSDPA
Roaming
Dialing

Quick Info
Services

Local Direct
Dial

Local Roaming
Number

3G Roaming (Full suite of Voice, Data
& Video Telephony)
BASIC BUILDING BLOCKS OF ESTABLISHING
INTERNATIONAL ROAMING
Commercial
(1)Negotiate IRAs.
(2) Exchange of test
SIM Cards and
setup Signaling
Link –required
before proceed
with testing
IREG Testing
(1)Common IREG Testing
(need to schedule with
RPs for a mutual test
schedule and
(2) Individual IREG Testing
(can be done by our
own). Exchange of the
IR.24 once testing
complete.
TADIG testing
To verify the completed IR.24
(from RP) with the record
captured, for billing and rating
accuracy. Once complete,
TADIG tester will issue the
TCC for confirmation of
launch readiness.
Commercial
Launch Letter
of the
OFFICIAL
LAUNCH
DATE will be
signed by
Home Network
COMPANY CONFIDENTIAL11
complete.
signed by
both IR
Managers as
a notification
of the
commercial
launch.
Roaming Partners
IREG Testing
(1)Common IREG Testing
(need to schedule with
Maxis for a mutual test
schedule and
(2) Individual IREG Testing
(can be done on their
own). Exchange of the
IR.24 once testing
complete.
TADIG testing
To verify the completed IR.24
(from Maxis) with the record
captured, for billing and rating
accuracy. Once complete,
TADIG tester will issue the
TCC for confirmation of
launch readiness.
Commercial
(1)Negotiate IRAs.
(2) Exchange of test
SIM Cards and
setup Signaling
Link –required
before proceed
with testing
DOCUMENTATION USED
￿AA.12 document
, in conjunction with AA.13 and AA.14 comprise
the GSMA’s standard international roaming agreement for
operators who would like to establish BILATERAL international
roaming services.
￿AA.12 contain the general terms and conditions that binds the 2
parties.
￿AA.13 document
begins with the description on agreement
COMPANY CONFIDENTIAL12
management principles on how to update roaming agreement; i.e.
Info on Billing Data, Settlement Procedure, Testing, and Fraud.
￿AA.13 is the common annexes that binds the 2 operators in a
Bilateral roaming arrangement
￿AA.14 document
contains operator specific information, some of
the information is classified as Operator Confidential, such as the
Inter-Operator Tariff.
DOCUMENTATION USED
￿AA19 agreement
is an addendum to the International GSM
Roaming agreement, AA12 and 13.
￿This agreement specifically for SMS-interworking.
￿Most of the operators who signed the agreement will agree to pay
the termination fee for each SMS MT.
￿AA.40 document
is the Addendum to the International GSM
Roaming Agreement for Multimedia Messaging Service Inter
-
COMPANY CONFIDENTIAL13
Roaming Agreement for Multimedia Messaging Service Inter
-
working
￿ThisAddendumappliestothetrafficscenariosagreedonbetween
the2operatorsforInternationalMMSaswellasMMSRoaming.
￿IR.21 document
contains operator specific technical details; i.e.
GSMA roaming database for each operator
￿Billing&TransferInformation
isthesummarizedinforequiredfor
TAPfilestransferandotherbillinganddetailsoftheoperator.This
documentisnowpartofAA.14
DOCUMENTATION USED
Test Cases ￿IR.24 –IREG test cases for voice & SMS testing
￿IR.27 –IREG test cases for CSD such as 3G Video
￿IR.32 –IREG test cases for Camel Roaming
￿IR.35 –IREG test cases for GPRS testing
￿IR.50 –IREG test cases for simplied3G testing
COMPANY CONFIDENTIAL14
Others ￿TCC –TADIG Completion Certificate
￿CLL –Commercial Launch Letter
DETAILED PROCESS FLOW DIAGRAM
COMPANY CONFIDENTIAL15
FRAUD & ROAMING DISPUTES
2.SMS
•Bad customer experience
•Unsolicited content

Massive number of messages
COMPANY CONFIDENTIAL17

Massive number of messages
•Network Congestion
•Impacts legitimate subscriber activity
•Done for MT messages
•Source network forced to pay interworking bulk fees for
illegitimate traffic
•Illegal use of home SMSC by fraudster/spammer
•Manipulated sender address, enters from foreign VLR
•Wrongful (and high) roaming charges to subscribers
FRAUD & ROAMING DISPUTES
Roaming Fraud –Main Contributing Factors
1.Inadequate roaming fraud prevention procedures between
operators.
2.Absence of routing transparency and fraud provisions in contracts
between international carriers and GSMA members (specific to
International Revenue Share Fraud [IRSF]).
3.Misuse of international numbering resources by number range
holders and carriers (specific to IRSF).
4.
Poor international co
-
ordination of law enforcement agencies to
COMPANY CONFIDENTIAL18
4.
Poor international co
-
ordination of law enforcement agencies to
tackle organised subscription fraud.
5.Ability of fraudsters to bypass checks and controls (of varying
strength, depending on operator) on new subscriptions.
Only one completely within the control of GSM operators
Fraud prevention mechanism
1.SIM-based fraud => HUR to NRTRDE exchange
2.SMS fraud => Anti-spam
Disputes are resolved amicably between the two operators by means of
facts presenting, negotiation & settlement
Content
•Corporate info
•International Roaming Implementation
•Flow Diagram for International Roaming
•Evolution of International Roaming
•Prepaid Roaming
•Steering of Roaming

Domestic Roaming in Malaysia

Domestic Roaming in Malaysia
COMPANY CONFIDENTIAL19
FLOW DIAGRAM FOR INTERNATIONAL ROAMING
–SMS MO & SMSMT
2G/3G
Roaming
Partner
A
SCCP or 3rd
party hub
IGW
GMSC
MSC/
VLR/HLR
RAN/BSS
Home X
Roamer B/
RP A
SMSC
(2) to roaming sub or
foreign sub
(1) to
local sub
COMPANY CONFIDENTIAL21
A
SMS sent
Roamer X
HOMEINT’LVISITED
FLOW DIAGRAM FOR INTERNATIONAL ROAMING
–GPRS/MMS ROAMING
2G/3G
Roaming
Partner
GRX
BR
RAN/BSS
Roamer X
RP A/
Roamer B
3G Packet Core
GGSN
MMSC
(1) to
local sub
(2) to roaming sub or
foreign sub
MMS sent
COMPANY CONFIDENTIAL22
Home X
WAP
Internet
WAP/Internet
HOMEINT’LVISITED
Content
•Corporate info
•International Roaming Implementation
•Flow Diagram for International Roaming
•Evolution of International Roaming
•Prepaid Roaming
•Steering of Roaming

Domestic Roaming in Malaysia

Domestic Roaming in Malaysia
COMPANY CONFIDENTIAL23
EVOLUTION OF INTERNATIONAL ROAMING
•Rapid commoditization: subscribers view roaming services
as standard, commodity services
•Fragmented telecom spend: more & more subscribers find
alternative to the traditional roaming services
•Service bundling boosts market share: Subscribers see
service bundling as highly desirable
COMPANY CONFIDENTIAL24
Therefore the need for Advanced Product Management
[APM]
•Prevent customer base erosion through consistent and
accurate database management and new product
offering
•Quality of Servicemonitoring to assure highest roaming
quality
•Speedto market to pass on benefit to subscribers at the
appropriate window of opportunity
Content
•Corporate info
•International Roaming Implementation
•Flow Diagram for International Roaming
•Evolution of International Roaming
•Prepaid Roaming
•Steering of Roaming

Domestic Roaming in Malaysia

Domestic Roaming in Malaysia
COMPANY CONFIDENTIAL25
PREPAID ROAMING VIA USSDCALLBACK (UCB)
USSD Call Back provides prepaid roaming services for prepaid
subscribers.
The key advantages of UCB
•The turnover of a call set up abroad in a visited PLMN is not divided evenly
between VPLMN and HPLMN operator.
•While the HPLMN gets 70% and the VPLMN gets 30% of signaling
activities for a call set up

With a CB service the HPLMN gets larger portion as the call set up in
COMPANY CONFIDENTIAL26

With a CB service the HPLMN gets larger portion as the call set up in
HPLMN for a and B party
How does it works?
•UCB Call Triggered by USS string (*120*B Party No#)
•Where it contains UCB code and CdPAnumber
•The customer’s HLR forward it to appropriate SCP which supports the
customers IN services via U/UG-CSI
•First the UCB established a call to the call initiating party and if the
customer answered, than the second leg to initiate a call to B party will
takes place
PREPAID ROAMING VIA CAMEL ROAMING
COMPANY CONFIDENTIAL27
Prepaid Roaming is achieved by means of CAMEL
CAMEL PREPAID ROAMING
Customized
Application for
Mobile network
Enhanced
ThetermCAMELreferstoastandardthathasbeen
definedinordertomigrateproprietary
INservicesand
operatorspecificservices(OSS)
solutionstowards
standardizedmobilenetworksolutions.CAMELisa
standardizednetworkfeature(notasupplementary
service)andistransparenttotheuser.•CamelPhase1
CAP Phase 1, the first phase of CAMEL, provides the mechanism to
consistently support
value
-
added services, independent of the serving
COMPANY CONFIDENTIAL28
Logic
consistently support
value
-
added services, independent of the serving
network. CAMEL Phase 1 only provides a limited set of operations.
•CamelPhase2
CAP Phase 2, the second phase of CAMEL has provided CAMEL features
to facilitate service control of OSS external to the HPLMN. Making new CS-1
INAP operations available and defining a range of additional network
functions will allow the operators to obtain a powerful environment for the
creation of sophisticated and competitive services. The introduction of Phase
2 causes a significant gain in the CAMEL feature package.
•CamelPhase3
CAP Phase 3, the third phase of CAMEL provides for the introduction of
the CAMEL features for GPRS/UMTS. New subscriptions and charging
features have been implemented in the CS domain.
CAMEL ROAMING ARCHITECTURE
COMPANY CONFIDENTIAL29
Service switching point (SSP)
Within the circuit-switched part of the PLMN ,an SSP is typically integrated into a mobile services
switching center MSC. This type of network node is referred to as an M-SSP. Within the packet-
switched part of the PLMN, an SSP is integrated into the serving GPRS support node SGSN
(gprsSSF).
CAMEL service environment (CSE)
Originally known as service control point (SCP) for the IN nodes, the term CSE was introduced with
the CAMEL feature.
GPRS service switching function (gprsSSF)
This is integrated into an SGSN.
Service management point (SMP)
This is also known as intelligent peripheral (IP).
PREPAID ROAMING –CAMEL PHASE 2
visited
SEP
CAP2
HLR
CSI
LUP
LUP
MAP
e.g.
CON
Home network
IDP
MOBILE ORIGINATION CALL
CHALLENGES IN CAMEL ROAMING
Testing

Complexity and Coordination delays
Implementation –Configuration changes
￿
HPMN and VPMN incompatible configuration requires changes
￿
longer implementation and testing due to potential impacts on domestic
services, other roaming partners
￿
Scarcity of technical staff in general, and CAMEL skill-sets in particular
Operational –Scheduling CAMEL testing
￿
Getting priority and bandwidth on large operators’ schedules
COMPANY CONFIDENTIAL32
Commercial -Cumbersome roaming Top-Up
￿
60% of prepaid roamers running out of credit after 3-5 days
￿
Difficulties for top-up of prepaid account while roaming
Monitoring -Availability of roaming partners
￿
Requirement for real-time monitoring for sudden changes in calling patterns
Testing

Complexity and Coordination delays
￿
Not every CAMEL test plan is the same: different test scenarios, different
charging schemes
￿
Language issues with messages/IVR interactions
￿
Coordination with HPMN for profile changes (e.g. reset balances)
￿
Complex CAMEL protocol -> longer troubleshooting
CAMEL ROAMING HUB SOLUTION
“I can’t get on my
roaming partner’s testing schedule”
“I don’t have enough
technical resources to
spare
for
CAMEL
“It takes 12 hours
for the HPMN to
change the
prepaid balance”
“The IR-60
test cases are
so different
for each
operator”
“My roaming
partners don’t
understand that I
need correct TAP
records for my
postpaid CAMEL
services”
“I am
waiting for
new test
SIMs”
“I am afraid of fraud
opportunities with
Premium Numbers
not being charged
correctly”
COMPANY CONFIDENTIAL33
spare
for
CAMEL
roaming”
￿Acceleration of CAMEL roaming
￿Simplification of CAMEL roaming establishment and monitoring
￿Camel Phase adaptation
￿Enriched roaming experience
￿Retain / Increase preferential roaming relationships
Content
•Corporate info
•International Roaming Implementation
•Flow Diagram for International Roaming
•Evolution of International Roaming
•Prepaid Roaming
•Steering of Roaming

Domestic Roaming in Malaysia

Domestic Roaming in Malaysia
COMPANY CONFIDENTIAL34
STEERING OF ROAMING
Methods of Steering:
1.Handset/SIM-based
COMPANY CONFIDENTIAL35
STEERING OF ROAMING
Methods of Steering:
2.HPLMN controlled SS7 based
COMPANY CONFIDENTIAL36
STEERING OF ROAMING
Methods of Steering:
3.Hybrid –SS7 based + OTA
COMPANY CONFIDENTIAL37
Content
•Corporate info
•International Roaming Implementation
•Flow Diagram for International Roaming
•Evolution of International Roaming
•Prepaid Roaming
•Steering of Roaming

Domestic Roaming in Malaysia

Domestic Roaming in Malaysia
COMPANY CONFIDENTIAL38
DOMESTIC ROAMING IN MALAYSIA
Domestic Roaming (DR) was rolled out in many phases:
1.2003 –Site swapping; DR method : Domestic Interconnect
￿Cameron Highland,Fraser Hill, Bukit Beruntung, Bukit Tunggal
COMPANY CONFIDENTIAL39
DOMESTIC ROAMING IN MALAYSIA
Domestic Roaming (DR) was rolled out in many phases:
2.2005 –Site swapping; DR method : Domestic Interconnect
￿Celcom –Kg Genting, PulauTioman(Pahang)
￿Maxis –MuluNational Park (Sarawak)
Kg Genting

-
Celcom

KTNGT

MSKPE

M
KN
1

019

Digi
E1 Maxis
E1
Mulu Nat. Park

-
Maxis

KCHGT

Celcom
COMPANY CONFIDENTIAL40
￿DiGi –Kuala Gula(Perak)
Mulu Nat. Park

-
Maxis

MSKCA

KCHGT

MSW1

012

Digi E1
Celcom
E1
Kuala Gula
-
Digi

MPG1

PRDGT

MSSJ

016

Maxis
E1

Celcom
E1

DOMESTIC ROAMING IN MALAYSIA
Domestic Roaming (DR) was rolled out in many phases:
3.2007 –Part of TIME-3
(T3) requirement; DR method: International
Roaming ￿Controlled testing conductedthoroughly
￿Live DR testing completed in August 2007 in controlled
environment for all three Celcos–site : TOC coverage area
￿Voice and SMStesting conducted successfully for postpaid
only
COMPANY CONFIDENTIAL41
only
￿Based on manual network selection, further study required
for seamless DR
￿Proposed sites : East –West Highway (Baling –Jeli)
DEFINITION FOR TIME-3 PROJECT
•Populated areas within 40 people -80 people per sq km.
•Additional areas under T3:
–FELDA/FELCRA/estates with population within 40 -80 people/sq
km.
–Major Roads outside T2 boundary/route. *
–Orang-Aslisettlements/Major Rural Communities (peri-bumi,
longhouse, etc). *
COMPANY CONFIDENTIAL42
–Popular/Seasonal Tourist Spot/Homestay(Top 20/state) *
–New PLKN, IPTA, IPTS *
–Railway tracks route (West Malaysia) *
–T2 Improvement (T2i) -T2 Blind Spots
–Areas within T2 Boundary.
–Rail line (Komuter): Seremban–KL, KL–Rawang, KL–Port Klang)
* MCMC to provide/seek input from relevant agencies/authorities
PRO AND CONS OF DOMESTIC ROAMING FOR
TIME 3
+ive-ive
1. Viewed as an extension ofServices provided may be limited
infrastructure sharing (e.g. home based eg. short codes)
2. No capex for site rollout.Customer experience in a
No additional costs for billing.visited network may differ from
home network
COMPANY CONFIDENTIAL43
home network
3. International Roaming method Call tariff may differ from home
will ease implementation. network
4. DR meant for sites with 40 - 80Fraudalent activities need to
people per sq km. Low traffic monitored more aggresively
areas.compare to international roamers.
DOMESTIC ROAMING TECHNICAL INFORMATION
DR Components
Requirements
Definition
Entity/Metric
Coverage &
Capacity
Coverage area with good servicePlot of BTS coverage for the subscriber to
transmit/receive GSM services at acceptable quality
-85dBm
Coverage area with acceptable servicePlot of BTS coverage for the subscribert to
transmit/receive acceptable GSM services;
intermittent calling capabilities
-95dBm
Coverage area with limited service (idle
mode cell re/selection criteria);
RXLEV_ACCESS_MIN
Plot of BTS coverage to show the maximum
coverage area where the subscriber is able to capture
the RF signal
-105dBm
Capacity:: Number of subs at peak
Absolute value of subscriber in the BTS coverage
n
Capacity:: Erlang/sub model, with proper
GoS (typical @ 2% blocking)
Derived value of subscriber usage pattern in the BTS
coverage
e (typical @
0.2mErl/sub)
Capacity:: Maximum capacity required at
peak, Erlang
Derived value of traffic based on the GoS during peakE = n x e
Quarterly basis
Capacity:: Actual capacity to be utilized,
Erlang (typical 0.8x peak)
Actual value of traffic as captured by the networkE
System
Configuration
Cell Global Identity (CGI)This is a unique entity worldwide; CGI information
must be exchanged for inter-network configuration
MNC MCC LAC CI
MNC :: 502
MCC :: 12 (for Maxis)
Local Area Identity (LAI)This is a unique entity worldwide; without CI
information. Basic information stored in
BSS/MSC/VLR components for location update and
MNC MCC LAC
COMPANY CONFIDENTIAL44
BSS/MSC/VLR components for location update and
call setup. New LAI need to be setup to enable
Domestic Roaming
Network Destination Code (NDC)Routing number of the Network, as per ITU-T E.164012-xxxxxxx,
017-xxxxxxx,
0142-xxxxxx
Home Network RoutingSetup of Leased-line with DR partner for DR services
for connections with network elements; Home
network will process calls, with the Host network route
the calls to Home; Billing can be done via Ckt ID
filtering of the CDR
Network GT;
012-0xxxxxx
Domestic Roaming Service EnableOpen OLO PLMN for DR, usually a global command
at PLMN, or local up to LAC (but TimeCel with Nokia
was able to open up to CI)
PLMN
VLR
LAC
Service Level
Agreement
Service AvailabilityCommitment for the service availability for DR partnerBSS, MSC/VLR,
Leased Line
Maxis standard at
99.95% end-to-end
Service Restore TimeDuration for the host network to restore out-of-service
BTS or other network elements
Depends on internal
SLA practice, or based
on mutual agreement
Maximum capacity fluctuations (delta
changes) to the host BTS
Buffer zone for host BTS to absorb additional capacity
from roamers
Typical 20%
MiscellaneousService SupportedType of service supported by MaxisBasic call and SMS
services only for
Postpaid subscribers
Billing methodCDR filtering based on Circuit ID (leased line);
CDR transfer via TAP using direct FTP
24 hours
DOMESTIC ROAMING CONCERNS IDENTIFIED
BY WORKING GROUP IN 2007
￿Domestic Roaming as Enabler for Coverage
￿One of the mechanism to enhance the nation’s coverage
￿Avoids duplication of Infrastructure
￿Consideration:
?Single operator/multiple operators
?Seamless/non seamless roaming
?
For prepaid and postpaid
COMPANY CONFIDENTIAL45
?
For prepaid and postpaid
?Technical solutions
￿Regulated or market driven?
￿2G-2G Roaming NOT an ‘Access List’ Service
￿‘PI Report on Access List 2005’ recommended against any
regulatory intervention
￿DR to be commercially negotiated with industry co-operation
￿Involvement of Celcos, SBC and MCMC is key for successful
implementation of DR
DOMESTIC ROAMING CONCERNS IDENTIFIED
BY WORKING GROUP IN 2007
￿Site Selection Criteria
￿Non overlapping areas
￿Low traffic areas
￿Isolated and uneconomic areas
￿Static areas with no coverage
￿Sites to be mutually agreed
￿
Review the existing sites
COMPANY CONFIDENTIAL46
￿
Review the existing sites
￿Commercial Models
￿Costing methodology :Cost plusor Retail minus
￿Impact on cost due to use of IRmethodology
￿Reasonableness of DR Rates?
￿Trends in prevailing retail rates
￿DR rate derived in 2006
￿Possibility of use of USP fund?
￿Recovery from end users?
DOMESTIC ROAMING CONCERNS IDENTIFIED
BY WORKING GROUP IN 2007
￿Customer awareness
￿Inter network and end-to-end ‘Quality of Service’
￿Manual/automatic selection of Network
￿Roaming charges (inter operators/end user)
￿Awareness campaigns for DR
￿Operations procedures (Technical/Commercial)
￿
Recommendations
COMPANY CONFIDENTIAL47
￿
Recommendations
￿Seamless roaming a pre-requisite for success
￿IREG issuccessful way forward for postpaid and prepaid
￿Agreement on DR commercial principles
￿Requires joint effort by industry & MCMC
￿DR concept to be implemented at isolated areas to avoid poor
user experience
￿To be launched upon successful quality of service for seamless
end user experience
THANK YOU
THANK YOU
Name : SITI NOROHADZNIATI
Email: nsiti@celcom.com.my
Mobile: +60-19-6669 244