Ericsson IMS/VoLTE L1 Operations Engineer

IMS/VoLTE L1 Operations Engineer

Experience

1-5 Years

Location: Chennai / Noida

Job Summary

We are seeking an IMS/VoLTE L1 Operations Engineer responsible for the 24x7 monitoring, fault management, alarm handling, and first-level troubleshooting of Ericsson IMS and VoLTE network elements. The candidate will ensure network availability, service continuity, and adherence to agreed SLAs.

Key Responsibilities

Network Monitoring Operations
- Perform 24x7 monitoring of Ericsson IMS and VoLTE network elements.
- Monitor alarms, events, and service KPIs using Ericsson OSS/NMS tools.
- Identify, analyze, and report network faults impacting IMS/VoLTE services.
- Conduct first-level troubleshooting and restoration activities.

Incident Management
- Open, track, and manage trouble tickets as per operational procedures.
- Escalate critical issues to L2/L3 support teams and vendors.
- Ensure timely incident resolution within SLA timelines.
- Participate in bridge calls during major incidents.

Fault Management
- Analyze alarms related to:
- CSCF (P-CSCF,



I-CSCF, S-CSCF)
- HSS
- MMTel
- SBC/IBCF
- MGCF
- EPG/EPC interfaces
- Perform alarm correlation and impact assessment.
- Verify service restoration after issue resolution.

Service Assurance
- Monitor VoLTE service KPIs and performance indicators.
- Support daily health checks and operational reports.
- Ensure availability and stability of IMS services.
- Assist in preventive maintenance activities.

Documentation Reporting
- Maintain incident logs and operational records.
- Prepare shift handover reports.
- Generate daily, weekly, and monthly operational reports.
- Update knowledge base and troubleshooting documents.

Required Technical Skills

IMS/VoLTE Knowledge
- Positive understanding of:
- Ericsson IMS Architecture
- VoLTE Call Flow
- SIP Protocol
- Diameter Protocol
- LTE/EPC Fundamentals
- IMS Registration Procedures
- Voice Call Setup and Termination

Ericsson Platforms

Exp

📌 Ericsson IMS/VoLTEOperations Engineer (Chennai)
🏢 Indovision Services
📍 Chennai