SME - Cisco Unified Communications

Experience: 10 to 15 years

Location: Chennai, India

Skills: Cisco IPT, CUCM, SIP, Jabber, Cisco IP Phones, QoS, LAN, WAN, telephony, voice test infrastructure, voice routing, SBCs, RTP, packet captures, voice devices, Problem Management, Change Management

Job Summary
Network Voice, Cisco IPTVoice ops L3 support Job description
• 10-15 years’ experience
• Good communication skills
• Provides L3 support for complex voice and UC issues across the enterprise.
• Supports telephony and voice test infrastructure equipment and software.
• Maintains architecture documentation for long‑term voice service development.
• Provides deep troubleshooting of CUCM, CUC, gateways, SBCs, and voice routing.
• Performs detailed analysis of SIP signaling, call flows, and packet captures.
• Supports Cisco‑centric VOIP, SIP‑based calling, and call routing issues.
• Provides full L3 support for Jabber softphone, including login, registration, audio issues, presence, certificates, and configuration fixes.
• Supports hard phones (Cisco IP Phones), including firmware, templates, registration, and device provisioning issues.
• Troubleshoots softphone/hard phone call failures, RTP problems, and device behavior.
• Coordinates with network teams to resolve QoS, LAN/WAN, and transport‑level issues.
• Participates in major incident bridges for high‑impact or chronic voice outages.
• Works with vendors to escalate bugs, apply patches, and process RMAs.
• Ensures smooth lifecycle management of voice devices and hardware replacements.
• Provides knowledge transfer, documentation, and mentorship to L1/L2 teams.
• Drives Problem Management by identifying recurring issues and implementing permanent fixes.
• Creates RCA/PIR documentation and ensures long‑term corrective actions are completed.
• Participates in Change Management by reviewing, planning,



and executing changes safely.
• Coordinates with vendors for escalations, software bugs, and chronic device failures.

Key Responsibilities
Voice ops L3 support Job description
• 10-15 years’ experience
• Valuable communication skills
• Provides L3 support for complex voice and UC issues across the enterprise.
• Supports telephony and voice test infrastructure equipment and software.
• Maintains architecture documentation for long‑term voice service development.
• Provides deep troubleshooting of CUCM, CUC, gateways, SBCs, and voice routing.
• Performs detailed analysis of SIP signaling, call flows, and packet captures.
• Supports Cisco‑centric VOIP, SIP‑based calling, and call routing issues.
• Provides full L3 support for Jabber softphone, including login, registration, audio issues, presence, certificates, and configuration fixes.
• Supports hard phones (Cisco IP Phones), including firmware, templates, registration, and device provisioning issues.
• Troubleshoots softphone/hard phone call failures, RTP problems, and device behavior.
• Coordinates with network teams to resolve QoS, LAN/WAN, and transport‑level issues.
• Participates in major incident bridges for high‑impact or chronic voice outages.
• Works with vendors to escalate bugs, apply patches, and process RMAs.
• Ensures smooth lifecycle management of voice devices and hardware replacements.
• Provides knowledge transfer, documentation, and mentorship to L1/L2 teams.
• Drives Problem Management by identifying recurring issues and implementing permanent fixes.
• Creates RCA/PIR documentation and ensures long‑term corrective actions are completed.
• Participates in Change Management by reviewing, planning, and executing changes safely.
• Coordinates with vendors for escalations, software bugs, and chronic device failures.

Skill Requirements
Network Voice, Cisco IPT, CUCM, Zoom Telephony

Other Requirements
Good Communication skill

📌 SME Cisco Unified Communications (Chennai)
🏢 HCL Technologies
📍 Chennai