Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic
Liezl De Leon

Liezl De Leon

Paranaque City, Metro Manila,RIZ

Summary

Dynamic VoIP Network Engineer with proven expertise at HCL Tech in implementing complex IP Telephony solutions. Skilled in Cisco Unified Communications Manager and proactive troubleshooting, I excel in enhancing communication systems while ensuring compliance with SLAs. Strong verbal communication and time management abilities drive my success in delivering exceptional customer support.

Overview

11
11
years of professional experience
1
1
Certification

Work History

VoIP Network Engineer

HCL Tech
11.2023 - 02.2025

· Responsible in implementing requested, non-service impacting IP Telephony change activities (MACD) for global managed IPT Customers.

· Responsible for initial interpretation of the customer requested activities which requires knowledge of the Customers IP telephony environment and components in vast complex network.

· Responsible in the implementation of the request as performed in the Cisco IP Telephony solutions like the Cisco Unified Communications Manager (CUCM), Cisco Unity Connection (CUC), Cisco Unified Communications Manager Express (CME) and Cisco Unity Express (CUE).

· Responsible in troubleshooting and configuration of Cisco Collaboration Analog, VOIP hardware such as Cisco Unified Phones (7900 and 8800 series), Cisco Unified and Non Cisco wireless phones (Spectra link 8840), Cisco Unified and Non Cisco IP Conference Stations (Polycom Soundstation 2) and software endpoints such as CIPC (Cisco IP Communicator), Phantom/Visual voicemail and Jabber

· Responsible in Automatic Call Distributor (ACD) line creation for Agent users.

· Call Handler and Auto Attendant configuration to support Customer time of day call routing and IVR recording in CUC.

· Handles port access configuration and data/voice port VLAN mapping via Infoblox/ISE (Cisco Identity Services Engine).

· Records the progress and status of all Service Requests to ensure that the service-level requirement is fulfilled.

· Ensures timely resolution of all service requests tickets in compliance to Service Level Agreement (SLA) defined with the Customers.

· Communicates effectively with the PMO to identify needs and evaluate alternative business solutions on complex technical requests.

· Participate in the incident, problem and change processes related to the voice network.

· Implement and maintain IP telephony best practices by assessing current threats, vulnerabilities, risks and associated technical countermeasures.

· Keep abreast with advanced Unified Communication technology used by the industry.

Global Service Desk

Verizon Business
06.2015 - 11.2023

· Acts as a single point of contact for phone calls and emails from internal and external customers.

· Correctly logging incidents and faults, categorizing and prioritizing them in line with team procedures

· Ensuring all incidents and requests are progressed & cleared within SLA – escalating to other internal and external teams as appropriate

· May represent service desk in project meetings and may participate in coaching or quality assurance activities.

· Properly escalate unresolved issues to the Shift Lead/Supervisor.

· Ensure that professional support and response standards are met and maintained.

Tier 2 Technical Support Specialist

IBM Business Services, Inc
06.2014 - 05.2015

· Provides technical and customer service support for Customer’s users, resolving technical problems and answering queries through various channels such as telephone, chat, email, and tickets submitted online.

· Responsible in taking escalations from Customers handled by the Tier 1 Support.

· Responsible in transferring tickets to other resolver groups.

· Responsible in monitoring Tier 1 agents that are engaged on long calls.

Education

BS in Information Technology -

Colegio De Dagupan
Dagupan, Province Of Pangasinan, Philippines
04-2005

Skills

  • Cisco Unified Communications Manager
  • Cisco Unity Connection
  • Troubleshooting
  • IVR
  • Unity
  • Proactive, Creative and Engaged
  • Verbal and Written Communication
  • Time Management

Certification

Certification

  • Deploying Cisco Unified Contact Center Express

Trainings

  • Cisco Cloud Collaboration Solutions (500-301)
  • Cisco Collaboration Servers and Appliances (500-325)
  • Cisco Certified Network Administration (CCNA 201-301)

Timeline

VoIP Network Engineer

HCL Tech
11.2023 - 02.2025

Global Service Desk

Verizon Business
06.2015 - 11.2023

Tier 2 Technical Support Specialist

IBM Business Services, Inc
06.2014 - 05.2015

BS in Information Technology -

Colegio De Dagupan
Liezl De Leon