Lakshmi Kalyanasundram
Cheenai,Tamil Nadu
Summary
Experienced Unified Communication Engineer with 7.5 years of expertise in deploying, configuring, and managing Cisco BroadWorks platforms, VoIP systems, and Session Border Controllers (SBCs). Skilled in voice network architecture, SIP trunking, IP telephony, and ensuring secure, scalable, and reliable communication infrastructures. Proficient troubleshooter of VoIP systems, adept at optimizing call routing, and providing end-to-end support for Unified Communications (UC) environments.
Overview
8
8
years of professional experience
1
1
Certification
Work History
Senior Voice/UC engineer
TekVizion Voice Solutions
2019.11 - 2024.04
- Developed and executed manual and automated test scripts to validate VoIP services across multiple platforms
- Tested SIP trunking configurations and validated call handling processes such as call forwarding, transfers, and voicemail integration etc.
- Conduct end-to-end testing of VoIP systems, including SIP trunking, PBX systems, and IP telephony solutions, to ensure call quality, security, and performance
- Design, deployment, and optimization of unified communication solutions, including Cisco BroadWorks, Microsoft Teams, and VoIP systems for a diverse user base
- Worked extensively with Cisco BroadWorks, configuring system parameters, provisioning users, managing call routing, and integrating third-party services
- Configured BroadWorks-based UC services such as voicemail, auto-attendant, and conferencing for end users, enhancing overall service adoption.
- Conducted SIP interconnectivity tests and validated configurations between SBCs and service provider
- Configure and manage SBCs (AudioCodes, Cisco, Ribbon) to ensure secure and reliable SIP trunking and seamless VoIP communication
- Implemented and configured Cisco Unified Communications Manager and associated services, improving system efficiency and user satisfaction
- Utilized tools like Wireshark, Syslog, and BroadWorks logs to troubleshoot and resolve VoIP and SIP-related issues, including call drops, media quality, and registration failures
- Architect and deploy cloud-based UCaaS solutions, including Microsoft Teams, Cisco Webex, and Ringcentral, to enable enterprise-wide communication
- Collaborate with cloud service providers (AWS, Azure) to integrate UC solutions for vendors application testing.
- Mentor junior engineers and provide training sessions, fostering skill development and knowledge sharing within the team
- Document test results, defects, and workarounds in defect tracking systems like JIRA, contributing to continuous product improvement
NOC engineer
Varthali media Pvt LTD
2016.09 - 2019.03
- Provided first-line support for VoIP systems and Session Border Controllers (SBCs), resolving issues related to SIP trunking, call routing, and VoIP quality
- Monitored VoIP networks and SBCs in real time, responding to alerts and resolving incidents within agreed SLAs
- Diagnosed and resolved call quality issues, including echo, one-way audio, and dropped calls, by troubleshooting RTP streams and SIP signaling
- Assisted in configuring and testing SIP trunks, resolving connectivity issues with telecom carriers, and ensuring proper failover and redundancy
- Provided ongoing technical support to customers, including onboarding, configuration, and troubleshooting VoIP devices and softphones
- Monitored and supported enterprise VoIP systems, ensuring 24/7 availability of communication services across multiple sites
- Analyze VoIP traffic using tools like Wireshark to pinpoint packet loss, signaling errors, and protocol-related issues, facilitating quick resolution.
- Documented all incidents, troubleshooting steps, and resolutions in the ticketing system (JIRA, ServiceNow), ensuring transparent communication and service improvement
Education
Bachelor of Engineering - Electronics And Communications Engineering
Apollo Engineering College
Chennai, India04.2016
Higher Secondary School - Biology And Mathematics
Don Bosco High School - India
Chennai05.2012
Skills
- VoIP Protocols: SIP, RTP, SRTP, TLS
- Cloud Integration: AWS, Azure
- Virtualization: VMware, Hyper-V
- Automation: PowerShell, Python (optional)
- IP Telephony: Cisco Unified Communications Manager (CUCM), Asterisk
- Cisco BroadWorks Configuration & Management
- Microsoft Teams, Skype for Business
- Session Border Controllers (SBC) (AudioCodes, Cisco, Ribbon, Digitalk and Cataleya)
- Network Packet Analysis: Wireshark
- Ticketing Systems: JIRA
- Cisco Unified Contact Center Express (UCCX), Enterprise (UCCE) and Microsoft Teams Contact Center
- SIP Trunking, PSTN, Direct Routing
Certification
- Microsoft Certified: Azure Fundamentals
- Certified Associate LabVIEW Developer
- AWS Certified Solutions Architect - Associate
Languages
Tamil
English
Personal Information
Title: Unified communication Engineer | Expert in System Integration
Timeline
Senior Voice/UC engineer
TekVizion Voice Solutions
2019.11 - 2024.04
NOC engineer
Varthali media Pvt LTD
2016.09 - 2019.03
Bachelor of Engineering - Electronics And Communications Engineering
Apollo Engineering College
Higher Secondary School - Biology And Mathematics
Don Bosco High School - India
- Microsoft Certified: Azure Fundamentals
- Certified Associate LabVIEW Developer
- AWS Certified Solutions Architect - Associate
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