Open to Work

Unified Communications Engineer keeping Voice Systems running.

13+ years supporting Cisco collaboration for major US telcos — from analog and ISDN devices to Cloud-based Platforms.

What I do

Services

01

Cisco UC Support

CUCM, Unity, Presence, Expressways, CUBE and voice/analog gateways — on-prem and Dedicated Instance.

02

Cloud Calling

Webex Calling, Webex Contact Center, Broadsoft and MS Teams voice support.

03

Contact Center

UCCE / PCCE / UCCX operations, PG failovers, health checks and call recording (Verint, Calabrio).

04

VoIP Troubleshooting

SIP, H.323, MGCP, SCCP, call quality, registration — down to FXO/FXS, PRI, T1/E1.

05

SBC & Carrier

Ribbon SBC, SIP trunks, carrier and vendor escalation management.

06

Automation and open-source knowledge

n8n, zapier, Ansible, Git, Docker, Python, PowerShell, Azure, Proxmox, TrueNAS, Pfsense.

Career

Work Experience

  1. Oct 2024 – Apr 2025

    Enterprise IP Telephony (Support)

    Quess Corp Philippines

    • L2 Cisco Collaboration support for one of the largest US transport & logistics networks (US, Asia, Europe).
    • CUCM Dedicated Instance, Unity, Expressways, CUBE, CME, Webex Calling and UCCX.
    • 3rd-party SIP devices: fax, paging, alarms, IP trader turrets; SIP/H323/MGCP and legacy PRI/T1/E1.
  2. Aug 2020 – Aug 2023

    Senior Telecommunication Analyst(IP Telephony Support)

    Intrado Technology Services Philippines

    • L2 support in a UCaaS managed service provider across US, Asia, Australia and Europe.
    • CUCM, Unity, Presence, Expressways, CUBE, Ribbon SBC, Webex Calling, Broadsoft, WebexCC, MS Teams.
    • Firmware, certificates, maintenance and carrier/vendor escalation.
  3. Aug 2018 – Jul 2020

    Telecommunication Analyst (Contact Center Support)

    Alorica Philippines

    • Supported Avaya-to-Cisco PCCE migration with AT&T RouteIT SIP trunks.
    • Tier 2 telephony / contact center for a prominent US energy provider.
    • Predictive outbound dialer and Verint 15.2 call recording support.
  4. Apr 2016 – Aug 2018

    Application Support (Contact Center)

    IBM Philippines

    • Production L2 UCCE support for a major US telecom client.
    • Health checks and maintenance on ICM, PGs, Routers, Loggers, voice gateways.
    • Alarm monitoring and root cause analysis.
  5. Sep 2013 – Mar 2016

    Service Desk Analyst (IP Telephony/Contact Center Support)

    TTEC / TeleTech Philippines

    • MSP support for CUCM, Unity and ICM.
    • MACD operations for IP Telephony and UCCE.
    • Voice gateways, switches and Calabrio/Verint recording.
  6. Jun 2011 – Sep 2013

    Senior Analyst (Implementation)

    Accenture Philippines

    • Circuit deployment and VoIP implementation to SBCs.
    • Configured ISR / ASR / CME CPE devices per customer design.
    • Trained new engineers — A-list “People Developer Award”.

Education: BA in Information Technology — CAP College Foundation, Makati (2008–2011)

Highlights

Previous Works

Avaya → Cisco PCCE Migration

Pre- and post-cutover environment management for a US energy provider's contact center.

Global Logistics UC Estate

Multi-region Cisco Dedicated Instance and Webex Calling operations for a US transport giant.

UCaaS Multi-tenant Platform

Supported hosted Cisco collaboration for clients on four continents.

for Automation(in progress)

for automation and VoIP experiments.

GitHub

Kind words

Testimonials

From Linkedin - Joseph has shown exceptional technical skills and good work ethic. He does not backdown from challenging issues and is highly motivated. He would help you grow your technical skill as he is generous in sharing his techniques and knowledge.
— Former Team Lead, Intrado
From Linkedin - His contact center knowledge made our PCCE cutover far smoother than expected.
— Project Manager, Alorica
From Linkedin - It has been an honor working with Joseph for the past couple of years. Joseph is one of the most reliable member a team can have, someone with great work ethics and good personal qualities. I have work with Joseph as VoIP Engineer, and IP Telephony/UCCE Engineer. He is highly-skilled with Cisco technologies, very resourceful, always learning new skills that will be useful on what we do, and someone anyone will definitely opt to work with on a task or project. Over the years I have also seen him as a good leader and mentor especially to new hires. He has one of the best personalities in/outside work and definitely someone who knows how to balance work and life.
— Application Developer, IBM
From Linkedin - Joseph is a great mentor. He is always willing to share his knowledge and technical expertise. He works diligently and passionate of his job. During the time that I managed him, he sees to it that he will never leave work undone. Truly, a person you can rely on. He knows how to strategize very well to resolve obscure and complex issues.
— Delivery Manager, Accenture

Credentials

Certifications & Languages

CCNA / CCNP Collaboration

Cisco · 2022–2028

Webex Contact Center / Calling Admin

Cisco · 2026

Azure Fundamentals

Microsoft · 2021

ITIL v3 Foundation

ITIL

All badges on Credly

English

Pearson

C1

German

Goethe-Institut-Philippines · B2 course completed Oct 2026

B1

Let's talk

Contact