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Manager - Voice Core Ops

Job Req ID:  25590

Indore, IN

Function:  Technology/ IOT/Cloud


Team Member- Core Ops – MPC Cluster



M1- Core-Ops





Job Role

L1- Team Member- Voice 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 Voice Core & Basic awareness of IMS Core

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 4 to 5 years of experience in telecom networks with Hands-On experience on Voice Core (Ericsson, Nokia) , and Basic 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