Noida, Uttar Pradesh

Job Summary

The Voice Support Subject Matter Expert plays a critical role in ensuring the timely resolution of escalations and incidents within the Avaya Voice system. This position is pivotal in maintaining quality compliance with SLAs while driving customer satisfaction through proactive engagement and effective communication with key business stakeholders.

Key Responsibilities

You will be responsible for end-to-end trouble isolation and repair for customers voice products experiencing complex issues across CPE, LAN, WAN and PSTN networks

Troubleshoot issues related to quality, completion, routing, interoperability and connectivity across local, long distance, and IP networks.

Troubleshoot different layers in the OSI model. Understand and leverage network topologies and workflows.

Work with SS7 signalling and strong foundations of SIP/RTP messaging and call flows.

Engage with general router functionality such as router configurations, troubleshooting commands, etc.





Keep up-to-date with technology changes and continually expand knowledge and skill sets.

Skill Requirements

5 to 10 years of years of Telecom Voice and services experience. Must have expert level knowledge and experience managing all TDM Domestic, International & VoIP/Voice switching systems. Very good knowledge and experience of all Voice International switches like DMS100, DMS250, DMS500, CS2K/PVG, DEX600, SONUS, 5ESS (class 3 and 5), C20/G9, Siemens/EWSD, Ericsson AXE. Good knowledge of Local POTS lines, ISDN PRI, Metro Private line, Frame Relay, Channel Banks, Multi-Point and Ringdown circuits. Knowledge of 911 services, knowledge of all order entry and provisioning systems. Expert knowledge of technologies such as OSI model layer 1-7 troubleshooting, SIP, SS7, IP routing protocols, ISDN PRI, Local and LD voice switch/network including DS-0, DS-1, and DS-3 Bandwidth circuits. A very valuable understanding of call flow routing and translations over carrier international ne

📌 Sme - Avaya (Telecommunications) (Noida)
🏢 HCLTech
📍 Noida