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Manager- VoLTE Core Ops

Job Req ID:  40044

Indore, IN

Function:  Technology/ IOT/Cloud

Vodafone Idea Limited is an Aditya Birla Group and Vodafone Group partnership. It is India’s leading telecom service provider. The Company provides pan India Voice and Data services across 2G, 3G and 4G platform. With the large spectrum portfolio to support the growing demand for data and voice, the company is committed to deliver delightful customer experiences and contribute towards creating a truly ‘Digital India’ by enabling millions of citizens to connect and build a better tomorrow. The Company is developing infrastructure to introduce newer and smarter technologies, making both retail and enterprise customers future ready with innovative offerings, conveniently accessible through an ecosystem of digital channels as well as extensive on-ground presence. The Company is listed on National Stock Exchange (NSE) and Bombay Stock Exchange (BSE) in India.


Team Member- VoLTE Core Ops – MPC Cluster



M1- VoLTE Core-Ops





Job Role

L1- Team Member- VoLTE Core Ops – MPC Cluster


Job Purpose

  1. Responsible for Operation and Maintenance of Cloud & Non-Cloud Core network elements like


IMS Core: SBC , TAS , CFX , MGCF etc.

  1. Excellent Hands-on Troubleshooting skill to resolve customer complaints and system Faults.
  2. Performance monitoring & optimization of the Core network ecosystem.
  3. Cross functional coordination to understand business/functional requirement and delivery



  1. Hand-On Ericsson/Nokia Voice Core & Good awareness of IMS Core (preferably Nokia)

Function / Department

Cluster –Core Operation


Key Result



Providing Business Support by being ambitious and competitive & through speedy delivery

  • Ensure monitoring & operational maintenance of CS/IMS core network to reap best operational efficiency.
  • Faster closure of all CS/IMS core operational issues within defined TAT for minimum loss to company financials.
  • Resolution of Hardware/Transmission related issues of Core network within prescribed timelines.
  • Ensuring faster closure of performance related issues by first level check and proper coordination with Vendor and SNOC.
  • Traffic Re-arrangement for all business needs/core ranking to avoid 85% utilization/CO driven plans.
  • Support in implementation of new feature.


Carrying out checks on Core O&M to ensure Optimum Network's KPI and Quality

  • Timely expansion/upgrade of Core nodes before it impact customer services.
  • Speedy Delivery of New Expansions/Project, once material delivery at VIL MSC site. Timelines based on Project/Need.
  • For Optimal Utilization, Carry out preventive measures for equal distribution of capacity and subscribers with in core nodes.
  • Create Service Impact awareness for all Critical changes in Network and take record of Change Docs/Impact.
  • Ensure Correct Configuration Change and Post activity Check by SNOC/Performance team followed by Field testing.
  • Tracking Core KPI's on daily basis and taking immediate corrective action against any deviation with proper analyzing and coordination till closure of issue.
  • Carry out more proactive approach to deep dive with core/BSS system to understand the impact on core KPI's
  • Ensure Maximum ASR/PSR availability, PMQOS errors < 1% of signaling BHCA, all service affecting alarm < 24 hrs, Signaling Load< 40%


Engage with internal and external stakeholders and HSW/Legal compliance.

  • Bring synergy with sub verticals of Technology team by proper internal coordination.
  • Collaborate with Core Operations/CODE/SNOC/Transmission for better Network Experience
  • Co-ordination with Nodal/Regulatory and DoT/Term team for regular network audits and resolve the query raised by government bodies and Regulatory team.
  • Adherence and enforcement of HSW norms in the verticals with periodical HSW related audits and rectifications.



Core Competencies, Knowledge, Experience

  • Minimum 5 to 8 years of experience in telecom networks with Hands-On experience on Voice Core (Ericsson, Nokia) , and Good understanding IMS network concepts
  • Hands-On Experience on Following Nodes: Voice Core: MSS, MGW, GCS, IMS, SBC, HLR, HSS, EIR, UDR, NLD, ILD, STP, DRA.
  • Excellent Troubleshooting skill to resolve customer complaints and system Faults using Core Network Tools and 3rd party tools like wireshark
  • Basic understanding of IP Devices, IPv4&IPv6 routing and Routing/Redundancy protocols OSPF/BGP/VRRP.
  • Understand Network and Services Architecture
  • Understand Products, network protocols design Architecture and Services traffic flows including end nodes of Core network
  • In-depth knowledge of the Core network elements of at least one existing vendor.
  • Strong interpersonal & communications skills.
  • Capability to work with cross domain teams and handle stake holders effectively for requirement gathering, issue closure.

Must have technical / professional qualifications


  • B.E  Electronics/Telecommunication Engineering
  • Excellent hands-on on Core Network Tools and techniques, Wire-Shark, Microsoft Tools.
  • Basic knowledge of IP Domain


Vodafone Idea Limited (formerly Idea Cellular Limited)
An Aditya Birla Group & Vodafone partnership