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Click here or scroll down to respond to this candidateCandidate's Name
Street Address H: PHONE NUMBER AVAILABLE C: PHONE NUMBER AVAILABLE EMAIL AVAILABLE
Profile
Telecommunications Engineer with CCNA, CCNP certification, plus over 20 years experience
with performing call routing translation switching for wireline, wireless network technologies
such as GSM, CDMA, EVDO, LTE and VoIP. Seeking a position with an industry-leading telecom
or IT company.
Skills
Telecommunications field service Setup or maintain IP Telephony
Perform End-to-End testing Troubleshooting, network traces,
Create Technical standards and analysis and problem solving
deliverables Project management
Areas of Experience
Over twenty plus years working in telecommunications field, have experience and
expertise with translation call routing on Nortel GSM/CDMA products
Knowledge with Cisco Routers and Switches
Worked with VoIP (SIP, H.323, H.248, RTP) and TDM (POTS, DS0, DS1, T1, E1, OC3, ISDN)
on configuration, setup translation routing/call flows, traffic estimates and impacts
Worked with GSM products: ATCA, UMTS, R4-BCIN, UMSC, DMSC
Worked with CDMA circuit and Packet Core network
Worked with Wireline products: DMS-100, DMS-100/200, DMS-250, DMS-500, TOPS and
PBX
Worked with Ericsson IMS (IP Multimedia Subsystems): MTAS (Multi-Media Telephony
Application Server), CSCF, HSS and E2E testing for VoLTE network
Experience with SS7 (MTP, ISUP, SCCP, TCAP, MAP, CAP) messages, IS41, E800, CAMEL
prepaid for GSM, CDMA WIN triggers IS826 prepaid, LNP, E911, E800, CLASS, AIN, SIP and
Diameter
Experience with inter-vendors testing for SMS, VMS, Prepaid, CRBT, OTA, GPRS, and
inter switching hand-off
Performed analysis, optimization, traffic engineering and dimension
Worked with emergency team on supporting and resolving problem for customers
Worked with Sales engineers on Pre-Sale, costs and pricing for network implementing
services
Created presentations and Specs, process documents, Statements of Work (SOW),
Translation Guide, MOP (Method of Procedure)
Managing projects on timeline and budgeting
On sites performed testing before network in-service, and provided training/Knowledge
transfer to customers
Professional Experience
Unified Communications Administrator Jun 2017 to Current
TWU Denton, TX
Duties: Senior role providing engineering, provisioning, and deployment support for Skype for
Business which will unify all voice related systems in the organization. This includes current
PBX, Voice Mail, and ACD System.
Global Deployment - Sr. Database Engineering Mar 2010 to Jul 2016
Ericsson Plano, TX
Engineering, testing and troubleshooting E2E for VoIP, Supplementary Services features,
SMS, Presence, Chat, and MMS on VoLTE network.
Worked on IMS nodes such as: CSCF, MTAS, MGCF (SIP trunking to PSTN), HSS (setup
users' service profiles for mobile management, access authorization, service
authorization, and interfaces from other nodes to communicate with HSS)
Setup translation routing and support brought in-service total of 12 MSC large size for
Sprint's Core Network vision
Created and supported CDMA and GSM translation for US and international customers
Setup call routing for MSC and HLR on Greenfield packet-MSC
Performed CDMA C2P (Circuit to Packet switch) upgrade
Created trunking for voice services, E911, roaming, vendor hard hand off, LNP, Prepaid,
Equal Access, CALEA, SMS, IWF, WPS, SIP, Diameter and other data services
Sr. Database Engineering Consultant Feb 2002 to Feb 2010
Nortel Networks Richardson, TX
Designed network translation on MSC and HLR for GSM ATCA/UMTS/R4 BCIN
Setup SS7 translation and calls routing for MSC, HLR and INODE (a combine MSC and HLR)
Setup MSC translation to connect with Nortel eBSC, Siemens BSC, Ericsson BSC, Ericsson
RNC, Motorola eBSC, and Cisco FEMTO RNC
Setup translation services for: Wireless LNP, CAMEL Prepaid, Equal Access, Voicemail,
E911, CALEA, WPS, Push-To-Talk, Roaming, inter-vendor hand-off, SMS, GPRS and other
data services
Worked with Telco and third-party vendors such as Logica, LightBridge, Ericsson, Nokia,
Siemens, Cisco, and Synverse in setting up network applications or troubleshooting issue
CDMA &GSM NSS Translation Sr. Database Engineering Consultant Mar 1993 to Jan 2002
Nortel Networks RTP, NC
Created translation routing on CDMA and TDMA for customers US-West wireless, Cellular
One, Canada Prince Rupert PCS, Sprint PCS and Verizon customers
Created translation and provided support Wireline on CLASS (Custom Local Area
Signaling); E800 (Enhanced Toll Free Database); E911 (Enhanced Emergency routing);
LNP (Local Number Portability); NPA overlay; AIN (Advance Intelligent Network), Equal
Access; CALEA
Supported Wireline customer such as: Sprint LTD, Ameritech, Citizen, US-West,
Rhinelander Tel co, Horry Tel, Cell- One, and international customers such as Prince
Rupert (Canada), Japan and Egypt
Prime on MDC (Meridian Centrex) and ACD (Automatic Call Distribution) for PBX
Wireline Software System Regional Support Eng Mar 1991 to Mar 1993
Nortel Networks RTP, NC
Supported PARMMAIL Database tool; created the Office Parameter Calculation Guides
(OPCG document contained the guidelines and engineering rules that required for
switching and provided the efficiency value settings for DMS wire-line switching)
Prime on MDC and ACD features and provided the translation necessary to support U.S
Regional Engineers and Customers
Reviewed Design Documents (DDOC) from design group
Involved in the internal Nortel testing to ensure the success for new feature release and
implementation in the existing DMS-100/200 family products and PBX
Electronic System Test Technician Mar 1988 to Mar 1991
Nortel Networks RTP, NC
Duties included testing and troubleshooting hardware and software for front- end
equipment, peripheral equipment, IOC, network ENET and JNET; Lines Module (LM),
Outside Plan Equipment (OPM)
Performed from the system test level and circuit packs test level for DMS-100/200
family of equipment
Biology Research Assistance Sep 1983 to Feb 1988
Rhone Poulence RTP, NC
Responsible to maintain the insect cultures and facilities for Agriculture BIO testing
Performed experiments, testing with chemical compounds and formulations apply to
various insects, plants and collect the data for insecticide group
Education and Training
MBA, Master of Network Communications Management 2010
Keller Graduate School of Management Irving, TX, USA
Bachelor of Science, Computer Science and Mathematics 1993
North Carolina Central University Durham, NC, USA
Associate of Science, Electronic Engineering Technology 1987
Durham Technical Community College Durham, NC, USA
Certifications
CCNA (Cisco Switching and Routing)
CCNP (Cisco Switching and Routing
IMS (IP Multimedia Subsystems)
Extra-Curricular Activities
Attending Cisco Cyber Security Scholarship Training
Languages
Fluent in English and Vietnamese |
