Jason(zhenzhi) Wang | Elance
 
176985602337900
Last Sign-in: May 25, 2012

Jason(zhenzhi) Wang

Cisco Voice Engineer
   Canada
  |   Kitchener, ON

Resume/C.V.

* In-depth knowledge about telecommunications and IP network architectures, protocols, especially in SIP/IMS

* Have a strong understanding and working knowledge of SIP messaging

* Fixed-mobile convergence (FMC) solution

* Subject matter expert focused on the Cisco Unified Communications Manager suite of products

* Strong understanding and ability to review, interpret and troubleshoot CUCM logs and tracing

* Extensive engineering and operational experience with VoIP PBX systems and knowledge of Cisco IP Telephony products

* Expert knowledge in the area of configuring media termination points, calling search spaces, route pattern, route groups, route list, partitions, KPML in and out of band conversion, MGCP and codec types

Specialties
IP Telephony, Cisco Unified CM, Unity, CUPS, UCCX, Avaya Communication Manager, Asterisk, Voice GWs
SIP/IMS,
BlackBerry Enterprise Server(BES), BlackBerry Mobile Voice System(MVS)
GSM
C/C++
Java
TCP/IP
Service Description
Certifications
CISCO
Cisco Certified Voice Professional (CCVP)
Awarded: 2010
CISCO
Cisco Certified Network Associate (CCNAŽ Voice)
Awarded: 2009
CISCO
Cisco Certified Network Associate (CCNAŽ)
Awarded: 2008
Education
University of Waterloo
Honours Bachelor, Honours Computer Science
2003 - 2006
Employment
Research In Motion
Mobile Voice System Sustaining and Escalations Eng
2010 - Present
* The work scope encompasses all aspects of software sustaining which includes environment configuration, reproduce problems, root cause issue analysis, development and verification of software design changes and design maintenance. * Troubleshooting new and unfamiliar CUCM environments to determine root-cause of specific MVS deployment issues. * Responsible for the troubleshooting and engineering of a globally scalable, heavily integrated suite of VoIP technologies supporting complex corporate voice infrastructure for MVS. * Communicate effectively with customers, support personnel and peers to clearly understand reported problems and communicate status of action plans. * Work closely with Scrum Development, Systems Test and support organizations for required data collection and troubleshooting of complex environment configuration and software problems. * Provides accurate estimates to Sustaining and Escalations Manager for the sustaining software effort of assigned tasks. * Develop software patches and software updates to correct identified customer issues and verify their proper operation against formal specifications. * Clearly document assigned technical issues as they are identified and resolved.
Research In Motion
Mobile Voice System Interoperability Test (IOT) En
2009 - 2010
* Conduct Interoperability Testing (IOT) with RIM Mobile Voice System and Cisco telephony infrastructure in IOT lab. * IOT Test Planning, IOT lab bench setup, test execution, analysis and debugging during interoperability testing of RIM Mobile Voice System. * Document IOT test reports and problem reports for issues identified during testing. * Debug and support field testing activities. * Work in a cross-functional team environment with significant interaction with other test engineers, software developers and systems engineers.
Research In Motion
VoIP System QA Tester
2006 - 2009
* System level troubleshooting of RIM Mobile Voice System products and BlackBerry wireless handhelds. * Creation and execution of functional, interoperability, regression, and performance test procedures derived from the specifications, participation in the creation of test environments, analyzing and documentation of test results, filing defect reports and enhancement requests and collaborating with product development teams to investigate and resolve defect reports. * Automation of test cases.
Payment Terms
None specified
Jason(zhenzhi) Wang | Elance

Jason(zhenzhi) Wang