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Job Purpose
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To manage the Voice Core NSS operations and NSS Rollout at circle level. This role includes engagement with COG, SNOC, Product Factory, CXX, Planning, Transport and various inter-functional circle teams i.e. Marketing, CS, RA & Business, so as to deliver quake free and superior quality Voice Core services at circle. The role involves managing Voice core services multi-technology environment (viz. 2G, 3G, 4G CS Voice, VoLTE/IMS, VoIP, Signaling STP/DRA, Roaming and Support Enterprise Fixed Line & IOT).
*Network elements involved (As per deployement, circle specific)
Core CS Domain: MSC/GMSC, MSS/GCS, BC, MGW/GMGW, STP/SPS/DSR, DRA, MNP DB, HLR-(Mono, DX, NT), UDC, HSS, NDS, CDS, EIR/AUC, IMS VOLTE, TAS, SBC, Core MPBN-Routers & L2/L3 Switches, R4 Routers, STP Routers), EMS, PMS tool, Voice LI.
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Key Result Areas/Accountabilities
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- FIELD SUPPORT: Field support for issues resolution. Support to SNOC during incident resolution, upgrades and planned events. Report failures and drive to resolve in line with SLA/OLA. Capacity and KPI analysis and strive to improve same as per central guidelines & targets. Pro-active failure analysis. Offline backup support. MIS & report preparation/analysis. Support SNOC integration & Network Consolidation. Process adherance as directed by COG and SNOC. Redundancy testing. Management of Access and Long distance interconnects.
- CUSTOMER SUPPORT: Enrich customer Voice services by meticulous customer complaints analysis and resolution. Drive to sustain NIL revenue leakages in circle.
- PROJECT SUPPORT: Support new services/node rollouts and expansions HW/SW. Voice Core Infrastructure management and hygiene. Support field trials and POCs. Sync with UAT teams and RA for tests and clearances.
- DATABASE MANAGEMENT: Spare management & EOS/EOL management. Inventory management and quarterly sign off. Handle OPEX AMC/MS BPA PR PO as per Corp. Directives. Commercial co-ordination and closures at circle level.
- SECURITY MANAGEMENT: Support Nodal teams during TERM cell audits. Regulatory compiance adherence. Ensure MBSS security compliance of Voice Core nodes hosted in circle.
The Key KPI indicators are as below:-
- CS Core and VoLTE Node Availability – 99.999%, Blocked Circuits – Min – 0.2%, Backup DR availability and checks. Loss of redundancy instances <=1
- CS Core: Success Call Rate >= 99.98 % , Paging SR >=96%, Internal Cong.– Min –0.2%
- VOLTE: Call Success Ratio – Min – >=99.90%, Registration SR – Min – >=99.95%
- VOLTE: Average successful call setup time Max – <=2.5 secs
- STP/ SPS: Signalling load <= 40%, Signalling congestion ratio – 0%.
- CLOUD : CPU utilization < 70%, Memory utilization < 70%
- Delivering own new series opening in short span time of 10 days thereby meeting business requirements. TAC EIR management and updates within 24hrs. Updates to central team/portal for code opening.
- Capacity management of Voice Core Nodes (Daily/Weekly/Monthly reports)
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Core Competencies, Knowledge, Experience
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- Should have at least 10+ years of experience overall in telecom domain with Voice Core service knowledge with any platforms as Ericsson, Nokia, ZTE, Huawei etc.
- Experience in managing IP platforms viz. CISCO, Juniper, Huawei, Ericsson etc.
- Knowledge of Signalling, Roaming and Voice call flows in 2G/3G/4G/VoLTE domains.
- Experience in Cloud domain, knowledge will be a major plus.
- Excellent communication & inter-personal managerial skills, strong customer focus & seamless approach.
- Timely decision making and risk assessment.
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