The document provides a summary of Chung Chee Keong's work experience from 1992 to present. It details his 20+ years of experience in telecommunications network consulting for Ericsson and Nokia networks in various countries including Malaysia, Philippines, China, Brazil, and Colombia. It outlines the various positions he has held in areas such as network commissioning, integration, maintenance, troubleshooting, and emergency support. It also lists the network equipment versions and companies he has experience with.

1. Curriculum Vitae of CHUNG Chee Keong (Alex)
Email Address : ALEX_CHUNGCK@YAHOO.CO.UK
: ALEX_CHUNGCK@HOTMAIL.COM
Tel No (Home) : + 60 – 3 – 3341 8475
Contact No. : + 60 – 16 – 9640588
Summary of Experiences
Period Years Company Position
Equip
Vendor Operator Equipment Version
May 2005 –
July 2016
11.0 Nokia Colombia
/ NSN Colombia
• Senior CS
Core CARE
Specialist /
Consultant
- Nokia or
NSN
• Comcel /
Claro
• Telefonica
Colombia (TEM)
• Colombia
Telecomunicaciones
S.A.ESP.
• Avantel (4G)
• MSS and HLRi
(M12, M13, M14, M15,
M16 version).
• MGW (U2, U3B,
U3C, U4, U5, U6
version).
• ATCA MSS & TAS
(M16), ATCA MGW
(Ui5.0) and HSS /
NT_HLR.
May 2004-
March 2005
0.9 Nokia do Brasil Ltda.
(Brazil) or
NSN Brazil.
• NSS
Engineer/
Consultant
- Nokia • Oi (TNL PCS
S/A)
• S/W from M11
and M12 for GSM
switches.
• H/W – MSCi, HLRi,
MSS and MGW
equipment.
• H/W – I-series
(M11/M12 hardware
version).
Oct 2001–
May 2003.
& Aug 2003 –
Mar 2004
2.5 Nokia (China)
Investment
Company.
• NSS
Engineer/
Consultant
• NSS Field
Manager
- Nokia • China
Telecom
• China
Unicom
• S/W from M9 to
M11 for GSM switches.
• H/W – I-series
(M11/ M12 hardware
version).
Feb 2000 -
Sept 2001
1.5 SMART
Communication Inc.
GSM (NSS) and TACS
Consultant
- Nokia
- Ericsson
SMART Com.
Philippines.
• S/W from M9 to
M10 for GSM switches
(Nokia).
• H/W – I-series &
subrack switches
(Nokia).
• AXE10 (BYB202)
for TACS R7 (Ericsson).
Feb 1997-
Feb 2000
3.0 Ericsson Academy
Malaysia (EAM).
- Course
Development Project
Engineer (Project
Leader)
- Learning Facilitator
- Ericsson Global Training
Services.
• S/W – GSM (R7),
TACS (R7), AMPS(R7),
OSS (R7).
• H/W – BYB202 &
BYB501.
Mar 1995 -
Feb 1997
2.0 Nokia (Malaysia) Sdn.
Bhd.
NSS Commissioning
Engineer
- Nokia
- Comverse
(VMS)
TimeCel (ADAM) / TM
Touch, Malaysia.
• S/W from M6 to
M7B for GSM switches.
• H/W – subrack
switch.
• SMSC – version
SC3b.
Mar 1992-
Feb 1995
3.0 Perwira Ericsson Sdn.
Bhd., Regional
Training Centre.
Technical Training
Executive
- Ericsson Asia-Pacific. • H/W – BYB202
(For PSTN & TACS
system).

2. Professional Profile
A highly skilled CS Core network Expert with more than 20 years of world-wide
Telecommunication Network Consultation experience on Ericsson and Nokia networks.
Certified Nokia Core CARE and Emergency 24/7 support services expert on (ATCA, DX and IPA)
and Electra/Resolve Tools. Strong technical experience on hardware and software upgrade,
critical Technical Notes (TN) implementation, emergency network solutions, Billing Center issues
and network optimisation.
A very motivated and hardworking individual. Received the top 3 SLA/KPi/CRCT performance
(2008 - 2010) with Electra Tools and Customer Perceived Value (CPV for 2014/2015) Award.
Passed the Latin NSN Examinations for Contractor Certificate, Software Change Management
(SWCM), eMOP (procedure) Handling, Live Network Intervention (LNI), Resolve Tools Handling
and Emergency Process Handling (Nokia and DESCA) Certification. Attended and passed the
NSN FORW Model.
Experiences
May 2005 to July
2016
Nokia Networks Colombia / NSN Colombia.
Sr Core Care Specialist / Consultant
Started the Telefonica Moviles (TEM) Colombia Project with responsibilities include
commissioning, integration, SAT, feature testing, hardware expansion, software (CD installation)
and hardware upgrade (including Message Bus) and trouble-shooting the system for Release 4
network elements (MSS, HLRi and MGW U2, U3B, U3C, U4, U5 & U6).
In TEM Colombia NSS Core Local CARE Team (customer support) working on Help Desk
(Electra/Resolve Tools), Emergency Rota Team for R4 network and Software Upgrade/CD
installations, including FOA (pilot) and lead the trouble-shoot on upgrade procedure and
analysis upgrade failure issues.
Monitor the network to prevent ´red´ issues and inform customer on possible network issues with
recommendation. Involved in TEM network modernization project with oMSS and oMGW
(ATCA).
On Customer Care Special function Projects, supporting LTE and VoLTE (4G) network/project
with Evolved Packet Core (EPC) Network Elements.
In Claro as Sr CS Core CARE Specialist for the 2G/3G and 4G project.
Below is the description of the job functions and achievements:
• Worked for the NSS Core CARE Team for TEM Colombia (awarded top 3 SLA/KPi/CRCT
performance teams in Latin America for a number of years), involving O&M consultation,
CDR or Billing issues, CSFB (3G/4G) issues, network trouble shooting, network optimisation
and provide network solutions [example: created work-around solutions for CSFB multi-
vendors issue, Radio network issues related to Core Network].
• Provide and generate ‘Internal Core Network Statistics’ audit/report on customer’s network
growth, which use for purpose of sales and marketing team. Nokia (LAT) further developed
this ‘Core Network Statistics’ Report idea for customer reporting usage.
• Implement critical TNs (example: AHUB/SWU/EMB configuration and testing for ATCA MSS,
M3UA Signalling Data) to prevent possible network issues and ensure network stability.
Involved in the ‘ATCA Stability Project’ for the initial problems analysis.
• A performing member of the Emergency (on call support) Rota Team, trouble shooting and
providing varies workarounds for network critical issues, involving third parties equipment

3. and multi-vendors network environment.
• In Avantel project, working and learning the Evolved Packet Core (EPC) network elements
functionality, involving Telephony Application Server (TAS), Home Subscriber Server (HSS -
NT-HLR/One-NDS, One-EIR), IP Multimedia Core Network Subsystem (IMS), Policy Control and
Charging Rules Function (PCRF) and Mobility Management Entity (MME).
May 2004 to
March 2005
Nokia Networks (NSN do Brasil Sistemas de Comunicacoes Ltda), Brazil.
NSS Engineer/Consultant
Main responsibilities include commissioning, integration, SAT, hardware expansion, software
upgrade (CD installation) and trouble shoot the system network elements (MSC, HLRi and SRRi).
Below is the description of the job functions:
• Performed Network Design and Software Rollout (M12 upgrade for MSC and HLRi).
• Performed troubleshooting of Network Problems and emergency cases on a limited time
frame.
• Participated fully in the Operations and Maintenance functions.
• Installed the Hardware Retrofit and performed upgrade (e.g. changing the MBIF_B’s EPROM
to A11 and cards for HLR and SRRi to H06 version. Also MBIF hardware version upgrade).
• Implemented the Training Centre’s MSS and MGW successfully into their current network.
August 2003 to
Mar 2004
Nokia (China) Investment Company, China.
NSS Engineer/Consultant/Field Manager
Commissioning, Integration, Cut Over and Expansion of MSC in NingXia, Hunan, Henan, ShanShi
(Tai Yuan) and Beijing
• Acted as Field Manager in managing the Henan role-out project (Zhu Ma Dian, Shan Qiu, Xu
Chang & San Men Xia). Field Management for the site projects to ensure the project runs
smoothly.
• Lead the team of two engineers in commissioning, expansion, integration and cut over of
one MSC in NingXia. Successfully completed and performed the cutover within one month.
• Facilitated meetings with the customers on the project plans. Provided recommendations,
reports and other relevant assistance where needed.
• Supervised and managed customer’s staff in commissioning and integration of switches in
Beijing. Also help/work in any of the emergency projects when required.
Oct 2001 to
May 2003
Nokia (China) Investment Company, China.
NSS Engineer/Consultant
Main responsibilities include commissioning, integration, hardware expansion and software
upgrade (CD installation) of the system network elements. Conduct safe assessment or audit to
the new switches and work in Help Desk for the Northern and Eastern Region.
1) Commissioning, Implementation & Integration
• Designed macros for data collection and implementation programs. Standardised the
source data. This source data macro collection idea is further developed by Nokia China
team.
• Drafted and ratified the switching audit documents for commissioning and integration to
ensure the works are done according to the customer requirements.
• Prepared the M11 upgrade CD installation instructions, installed the M11 software upgrade
(CD Installation), commissioned and integrated the new M11 switches (MSC and HLR).
2) Testing, Troubleshooting and Hardware expansion

4. • Assisted the customer in the System Acceptance Test (SAT). Provided consultations to local
engineers.
• Care engineer - accomplished the Change Delivery (CD) Installation in Henan, Ji Lin and
Beijing province.
• Help Desk Engineer for the Northern and Eastern Region.
• Accomplished M11 hardware upgrade for CPU and Message Bus (MB).
Feb 2000 to
Sept 2001
SMART Communication Inc., Philippines
GSM (NSS) and TACS Consultant
Provide consultation for TACS System (Ericsson Equipment) and GSM System (Nokia Equipment)
for Network Switching System (NSS) Divisions on planning, integration and network O&M.
Conduct technical training for SMART engineering staffs.
The job functions involved:
1) NSS NEs optimisation and performance.
• Performed analysis on the signalling and traffic behaviour of the Network Elements (NE) for
routing efficiency. Provided solutions for SMSC routing.
• Audited (consistency check) the NSS NEs to ensure data integrity and network
reliability/security.
2) NSS detail planning and implementation for new NE.
• Standardised (SMART requirement) exchange properties, system parameters and naming
convention. Reviewed and verified new NE exchange data.
• Provided solutions for implementation of new GSM network functionality and SMART Pre-Paid
issues.
• Performed allocation of network (MSC, HLR and VMS) numbering plans to ease the
implementation of O&M activities.
• Verified, discussed and supervised the preparation of Work Orders (WO) on existing NSS NEs
for smooth implementation.
3) NSS Network Testing (SAT & INAT) and Design functionality.
• Reviewed and amended the SAT and INAT (test cases) for MSC/HLR/GMSC.
• Designed the functionality test procedures.
4) NSS Troubleshooting and Fault Isolation
• Performed trouble-shooting and provided solutions by working closely with O&M team in
meeting network’s emerging challenges.
• Conducted fault-isolation on new NE. Resolved fault management & alarm handling issues.
• Solved radio network problems related to NSS by working closely with Cell Planning (RF)
Department.
5) Consultant for the ‘TACS System Right-Sizing Project’
• Planned and implemented the re-homing of RBS. Provided guidance to the project staffs in
implementing and commissioning of the RBS.
• Designed implementation procedures and solutions to HLR subscribers’ migration issues.
• Provided solutions and consultation to emerging problems for TACS network.
6) Conduct training for SMART employees
• Reviewed the GSM (DX courses) and TACS (AXE10 & RBS) Course Programs (Fast Track) for
employees’ training path and competence transfer.
7) Special Projects accomplished:
• Routing Planning for ‘Call Looping Prevention’.
• Pre-Paid (PP & TNT) Zero Balance Barring and Routing Attribute.
• International Roaming Gateway Implementation.

5. • EIR/IMEI Implementation.
• SMS Routing & VMS Clustering Plan.
Feb 1997 to
Feb 2000
Ericsson Academy Malaysia (EAM)
Course Development Project Engineer (Project/Team Leader) and
Technical Training Executive/Learning Facilitator.
Pioneer the TACS Course Development Project Team. Duty to foresee the new training product
requirements for the customers and update the existing courses (EAM is the Local Product
Management [LPM] for TACS System). Also interfacing with Swedish counterpart on finalising the
courses. Conducted courses and facilitated for the global customers.
1) Course Design and Development
- Designed requirements for new courses (objectives and structure).
- Developed and verified the new courses materials.
- Designed instructor’s guidelines, exercises and solutions.
- Supervised team members in the preparation of course development and competence
program.
Listed below are the courses developed:
• The first TACS project involved the following courses:
1) CMS 8810, Delta R5/R7
2) CMS 8810, Delta R6/R7
3) RBS 889, Integration (Data Transcript)
4) RBS 889, Installation Test & Maintenance
• The second TACS project involved the following courses:
1) RBS 899M, Integration (Data Transcript)
2) RBS 899M, Installation Test & Maintenance
• The third TACS project involved the following courses:
1) CMS 8810, System Survey (R7)
2) CMS 8810, Operation & Maintenance (R7)
2) Course Implementation and Consultation
- Conducted GSM, TACS, OSS, AXE10 Testing (BYB202 and BYB501) and O&M courses, locally
and overseas.
- Consultant to other Course Development Project Teams.
- Responsible for role out of new products, training courses and TACS related technical issues.
- Interfaced with main marketing on technical issues.
- Provided consultation to customers, whenever problem arises.
- Possessed an excellent understanding of developing Data Transcript
- Team leader for Certification Process Work Group on the RBS courses.
- Certified the competence of aspiring instructors for RBS courses.
3) Testing and Troubleshooting
- Commissioned TACS (R7) MSC/HLR and RBS for the O&M courses.
- Tested and commissioned the GSM and ISDN switching system (BYB501), in order to conduct
‘AXE10, System Testing 1’.
- Conducted trouble-shooting for the AXE10 systems.
- Verified and tested the OSS R7 functionality for China market.
- Verified and trouble-shoot the DT.
- Provided the integrated data (DT) for MSC/HLR and RBS.
Mar 1995 to
Feb 1997
Nokia (Malaysia) Sdn. Bhd.
Network Switching System (NSS) Commissioning Engineer.

6. NSS network elements are Mobile Switching service Centre (MSC), Home Location Register (HLR), Short Message Service
Centre (SMSC) and Voice Mail System (VMS).
Main responsibilities include commissioning, operation and maintenance of the system network
elements.
1) Commissioning & Integration/Implementation
- Commissioned Switching System (MSC & HLR).
- Assisted in implementing and customising the test procedures for NSS.
- Supported the customer in implementing and define the specification for SMSC and VMS
(COMVERSE System).
- Performed the upgrade of hardware and software in the Switching System.
2) Testing, Troubleshooting and Maintenance
- Accomplished System Acceptance Test (SAT) with customer for Switching System, SMSC and
the inter-working between SMSC and VMS.
- Prepared the preventive maintenance procedure for the customers.
- Trained customer on their daily operation and maintenance work to ensure smooth running
of all system network elements.
- Solved various problems or faults that arise in customers system.
- Co-ordinated fault reports and software change notes with Finland to ensure all corrections
are implemented.
- Took charge of SMSC and VMS issues.
Mar 1992 to Feb
1995
Perwira Ericsson Sdn. Bhd., Regional Training Centre.
Technical Training Executive.
After graduation, joined the company as junior Training Executive. Subsequently became
Technical Training Executive.
Course Implementation and Facilitation
- Conducted courses and facilitated on the-job-training to customers from SEA Region,
especially China and Hong Kong, in Switching System (AXE 10) and Radio Base Station (RBS).
Switching System Courses - intend to define the necessary data for the operation of the switch
and base station, maintenance and trouble shooting the system, as well as general cell
planning.
Radio Base Station Courses - intend to provide knowledge in commissioning, tuning, testing and
maintenance of the base station equipment.
- Possessed a very good understanding of the principle for Cellular Mobile Telephone System.
- Interfaced and gave consultation to varied customers in improving communication and
interpersonal skills.

7. Computer Literacy
Proficient in computer applications, especially in most of the basic computer software, such as
Visual Basic programming, HIT programming, TICA or Charger (Toll Ticketing s/w), Microsoft
Office and Assembly Language. Currently, updating myself on the UNIX (C++) and Linux
commands.
About Myself
Nationality is Malaysian, born on 9 January 1969, stand at 178cm, weight 70kg, healthy and
married male.
Love sports particularly squash, soccer and chess. Enjoy simple things in life like reading, listening
to music and any outdoor activities. Was also active in extra curriculum activities and
represented school in Mathematics Olympia Quiz and Chess tournaments in district and state
level. Held secretary position of chess club and committee member of mathematic club.
Able to read, write and speak fluent English Language and Bahasa Malaysia. Able to converse
in Cantonese, Hokkien and Mandarin. Currently, learning Spanish and Portuguese with limited
success.
Strong Personal Qualities:
• Exceptional Problem Solving and Decision Making skills.
• Excellent Team Player.
• Thrive in a highly stressful environment and can withstand tremendous pressure.
• Independent Self Starter, well organized and systematic.
• Learn quick and ready to pitch in beyond regular hour to meet deadline.
• Willing to learn and be trained with related new skill sets and discipline on Telecom
Industry and Project Management.
• Mobile and willing to travel.
Professional Training:
• PROP for Project Manager
• Situation Self-Leadership
• Exceeding the Customer Expectation
• Basic UNIX
• GSM & DX200, System and O&M Courses
• BSS System and O&M Course
• SMSC and VMS Introduction, O&M (VAS)
• Overview of GPRS and WAP
• AXE 10 (BYB 202 & 501) O&M Training for Mobile Networks (GSM and ETACS).
• RBS 883 & 884 O&M Training
Academic Qualification
1997 to 2000 Certified Technical Trainer (Ericsson)
1988 to1991 Tertiary - University of Newcastle, Australia.
Graduate, Bachelor of Electrical Engineering.
1987 Pre-University - Taylor's College, Kuala Lumpur.

8. South Australian Matriculation (SAM), 1987.
Aggregate 78%
1982 to1986 Secondary - Anglo-Chinese School (ACS), Klang.
Sijil Pelajaran Malaysia (MCCE), 1986.
Aggregate 15, Grade 1.
Reference:
• Name: Mr. Luis Daniel Gonzalez
Company: Nokia Colombia
Title: Care Technical Manager (Telefonica Colombia)
Tel. (M): +57 – 316 303 9187
• Name: Mr. Diego Tristancho
Company: Nokia US / Nokia Colombia
Title: Care Engineer (Senior) / Care Technical Manager (Telefonica Colombia)
Tel. (M): +1 – 972 400 6668
• Name: Mr. Yap Hai Wai
Company: Nokia (Malaysia) Sdn Bhd
Title: Care Program Manager / Solution Manager (CMO APAC)
Tel. (O): +60 - 3 – 7952 5550
Tel. (M): +60 - 19 - 214 3692
• Name: Mr. Nad A Opiana
Company: SMART Communication Inc.
Title: SE-Core Network Manager
Tel. (M): +63 – 918 – 949 9287
Other Reference:
• Name: Mr. Miguel Arias
Company: America Tower (former Nokia Colombia)
Title: NOC & Maintenance Manager / Business Solutions (BSO) Technical Support
Manager (LAT)
Tel. (M): +57 – 314 230 6074
• Name: Mr. Huang Hai Tao
Company: Nokia China Investment Company
Title: OPS Manager (OPS Global Procurement)
Tel. (M): +86 – 135 0123 4063