Customer Service Engineer

Zhiqiang Fang

** ******* ******* #**, *********, MA 02138

617-***-****, ********.****@*****.***

Summary

• Customer Service Engineer specializing in IMS and PS core in Nokia Siemens Networks (and ex-

SIEMENS) China and USA more than 11 years.

• Skilled in IMS, SDM and PS Core solutions and products, including NSN IMS/SDM (CSCF/HSS/One-

NDS), VOIP AS(hiQ4200/4300), PCRF(PCS5000/SPR), SGSN, GGSN; Siemens DSLAM, EWSD; and

multi-vendors’ products, Cisco/Juniper/Checkpoint Router/Switch/Firewall, Cisco SDH(ONS-15454)

etc.

• IMS Technical Manager of NSN China Care competence steam.

• Creative problem solver, team-worker, expertise, responsible, with business sense.

Professional Experience

Mantra Telecom 06.2014 - present

Core Network Engineer

On site IMS server hardware replace at Verizon in maintenance windows; logistics management for

NSN/Verizon IMS ATCA blades retrofit project.

Nokia Siemens Networks 07.2001- 05.2014

SDM Engineer (Contractor) 03.2014-05.2014

(NSN CO A NAM North America)

• SDM (One-NDS/HLR-FE) Resolve ticket handling for T-Mobile care program in Tier two.

Communicating with customer and troubleshooting problems, remotely support in maintenance

window, run MOPs.

IMS / PS Core Engineer 04.2007-04.2013

(Nokia Siemens Networks China, RSO – Delivery – System Stream – IP)

• Technical lead in Beijing China mobile(CMCC) IMS/SDM project with responsibility for integration,

interoperability testing and final acceptance certificate of network elements, including CSCF, HSS-FE,

ONE_NDS, Acme_SBC, Enum_DNS, HiQ, VIG, Radisys_CMS9000, @Vantage_Commander, CMD,

Cisco_7606, Juniper_SRX3600,H3C_F5000.

• Execute NSN IMS/SDM/VoIP_AS products functional / technical / IOT testing in China Mobile and

China Unicom (CUC) research institutes with our competitor Ericsson, Huawei, Alcatel-Lucent, ZTE.

Build up and maintain lab testing network, participate in integration of CSCF, HSSFe, OneNDS,

Enum_DNS, HiQ,VIG, Movius_media_server, @Vantage_Commander, CMD, MGCF, AGCF,

RCS.

Test the cases throughout customer specifications, and find out workaround or rise tickets to

product line if product does not match the requirement, try to achieve higher passing rate. The

specifications covered interfaces include Gm, Mw, Mg, Cx, ISC, etc.

Full mesh IOT test on Cx/Dx interface between CSCF and HSS/SLF with other venders.

• Acting as the IMS Technical Manager of NSN RSO China mainland competence steam, and built up

and manage China PS core and China IMS community technical team-sites for knowledge sharing.

• Technical lead of Guangdong province CMCC PCRF/PCEF (PCS5000/Flexi_ISN) trial project, got a

spot award because of the outstanding performance. Design, write and perform PCRF functional and

effectual test cases in production network, check whether RAN KPI improved after PCRF policy

delivery.

• Technical supporting of commercial PCRF project delivery after trial.

• Worked as the technical lead in Inner Mongolia WCDMA PS core buildup and extension project.

Integration, upgrade of DX200 SGSN, Flexi ISN, checkpoint firewall and Cisco IP backbone.

Resolve problems in hardware, planning, network failure. Consulting service and on-site

emergency support.

• Lead PS core IP network optimization delivery in Henan CMCC Advanced care project. Plan, write

and execute MOPs for IP backbone cutover, find and correct configuration defects in production

network. Work on Cisco 6509/7609 and cutover all PS core interface step by step, including

Gb,Iu,Gn,Gi,Gi’,Ga,Ga’,OAM.

• Participated in Yunnan CMCC GPRS core health check project and Zhejiang CMCC GPRS advanced

care project. Check configurations on SGSN GGSN, capture call flows in live network, then do

statistics and analyze, resolve latent problems in PS core network.

• Delivered the onsite service of GPRS projects for Guangdong CMCC, Liaoning CUC, Jilin CMCC,

Hunan CUC, Ningxia CMCC, and Hubei CUC, for example, difficult case on-site troubleshooting,

hardware extension in production network, network health check, and mayor software version

upgrade.

Broadband Access / SDH / IPTV / PSTN Engineer 07.2001-04.2007

(BISC, SCNB – Siemens Fixed Network Company in China, BISC became SCNB in 2004 and merged to

NSN in 2007)

• Carried out installation, integration, verification and maintenance of Cisco ONS-15454 (SDH) and

routers in China Netcom (now China Unicom) POP project in Frankfurt Germany and Tokyo Japan.

• Implemented SIEMENS IPTV trial project for China Telecom Hubei Province.

• Been in charge of Hubei and Jiangxi China Telcom100k+ lines SIEMENS DSLAM hiX, Carrier

Ethernet switch hiD and BRAS ERX post-sale service.

• Engaged in the China Telecom Hubei SIEMENS PSTN switch EWSD post-sale service.

EDUCATION

China University of Geosciences (Wuhan), Bachelor degree on Electronics and Information Engineering,

July 2001

Wuhan University, Bachelor degree on Business administration and Management (minor subject), July

2001

TRAINING

• Introduction to ATCA HW Platform

• SGSN SG7 Call Control (SGSNCC SG7)

• One-NDS 8.0 Directory Platform, Operation and Administration

• Firewall Operation, Maintenance and Troubleshooting (FWOM&TSH)

• ACME Packet Net-Net SD Configuration (Session Border Controller)

• Packet Core Network Troubleshooting (PCNTSH) (2G and 3G)

• Movius (IP Unity) Mereon 6000 Media Server

• CCS7 for Packet Core

• Flexi ISN 3.2 Service Awareness (FISA 3.2)

• 2G Packet Core Network Signaling (2G PCNSIG)

• GPRS system introduction of Nokia

• Surpass Home Entertainment System Introduction and Commission

• hiX5635 System Configuration

• ERX BRAS, QOS and MPLS

• ERX Circuit Aggregation Configuration Basics

• Introduction to the ERX

• EWSD Delta Training V11-V15

• XDSL Operation, Administration & Maintenance

• Attane Solution and product

• XpressLinkD OAM&Commissioning

• EWSD OAM

CERTIFICATION

CCNA, JNCIA-JUNOS

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