Sanjeev Kumar

Experience

• 

  ZTE Corporation India

  Apr 2010 - Feb 2012

  NOC Engineer

  Operation & maintenance of ZTE Media Gateways and Soft-Switch for Aircel NLD-ILD Operation.Managing NLD Network & ILD Networks of Aircel India with a team of 10 membersOverseeing operation & maintenance of NGN ZTE Soft Switch (ZXSS10) and MGW (ZXMSG9000). Coordinating with the core team to accomplish new MGWs/switches installation and acceptance test. Performed Excellently in all three Major Operations of Managed Services (Fault, Configuration & Performance).Overseeing Configuration Management for ILD Aircel.Handling alarm/ fault management for the Soft-Switch and MGWs, booking TT and getting support from Technical Helpdesk, Equipment Vendors.Providing NGN Switch logs, control information for MGWs using traces (NMS) and its logs/ traces for alarm time to resolve the fault.Ensuring MGW firmware up gradation and other patch implementation for Soft-Switch.Maintaining backup for Soft Switch (golden and routine) and regular health check-up for MGW and Softswitch.Good Understanding of Signaling Protocol SIP, SIGTRAN, SS7, H.248/MEGACO, SCTP.Handling a gamut of tasks pertaining to:New POI/ link creation, E1s augmentation, MGW Unit Configuration, MSISDN/MSRN/Level Configuration, ATs with BSNL/ Airtel/ Reliance/ TTSL/ Vodafone/ Spice/ LOOP and some other operator.Coordination with circles operation engineer for POIs connectivity/ expansions for the circle and other operators.Daily Traffic Report Analysis & Planning based on Utilization, ASR, Capacity & MOU. Show less

• 

  Wipro Infotech

  Mar 2012 - Apr 2013

  Customer Support Engineer

  Operation & maintenance of Veraz (Dialogic) Media Gateways and Soft-Switch for IDEA ILD Operation.Managing ILD Networks of Idea PAN- India with a team of 8 members Network Surveillance in 24x7 environments.Configuration and troubleshooting of NGN (Next Generation Networks) / VoIP applications on Soft Switch for ILD traffic.Provisioning of Veraz (Dialogic) Media Gateways (iGate-4000, PRO-DSPKR2) & DSG (SGB box’s), Soft-Switch and Session Border Controller/SBC (BN4K).SIP and ISUP Trunk groups’ configuration in EMS console for the transition of calls – SIP to SIP, ISUP to SIP and vice-versa.Maintenance of devices through EMS & Local craft terminal to maintain Route Changing, ASR and ACD of the clients connected to us.Analysis of whole Idea ILD traffic, the creation of new M3UA on DSG (SGB boxes), Trunk Groups, Add new routing plans & policies in Veraz Soft Switch as per requirement.Analysis of the ILD/NLD traffic through Dashboard Reports (ASR, MOU & ACD).Connectivity with new ILD carriers & ILD POI With performs the AT (Acceptance Test).Proactively managing the alarms on nodes, rectifying them and escalating to transmission & POI switch teams if required.Traffic re-routing and congestion management.POI implementation and capacity augmentation to have congestion free network.Responsible for POI coordination and implementation of ILD requirements.Monitoring the Media gateways and switch through Alert ping & MRTG.Handling MNP testing for Idea ILDResolve connectivity complaints through Call Trace and analysis. Show less

• 

  Vodafone Global Enterprise

  May 2013 - Feb 2015

  Voice Consultant / Senior Executive

  (Joined with Cable & Wireless Worldwide. Vodafone acquisition took place in April 2014)Working on Nortel- DMS 100 and System X switches.Working on Nortel- DMS 100 and System X switches.Spearheaded efforts in managing C&W (Vodafone) NLD & WAN Network for the UK.Providing support for various services e.g. Indirect services (CPS/IDA), Direct Services, NGN (Non-Geographic Numbers), Centrex, Voice VPN.Handling of tickets assigned to Remedy queue.Providing customer support by solving tickets within SLA.Liaising with other operators like BT, Eircom etc.Coordinating with other teams of C&W/Vodafone like for Core Network Operation and Maintenance.Provide real-time support to the Field Engineers to resolve the faults and migrations.Taking SS7, ISUP, and Ethereal traces and providing resolution for critical issuesManaging Network infrastructure using ITMS and Call store tools.Carrying out Termination of Service Requests from fraud departments. Show less

• 

  Jio

  Mar 2015 - Jul 2019

  Deputy Manager

  Practicing Incident and Problem Management with Spearheaded efforts across managing Operation & Maintenance of Jio International Long Distance (ILD) Voice & International Roaming (IR) Network. 24x7 Network Assurances by Monitoring and Maintaining Compliance with Network Stability and Availability.Viable on Genband Devices (Media Gateway- G9, Media Gateway Controller- C3 and Genband SBC- Q21).Analyzing TDM traces (SS7/ISUP) & VOIP/SIP traces (.pcap) to provide resolution for critical issues related with Wholesale Voice (Organic, In-Organic and Hubbing Traffic)Functional for network change and configuration management across Reliance Network.Acceptance Test of New Network Elements - MGC, MGW, SBC etc.Functional for Configuration and AT of new Carriers and POIs, which includes Routing Management, Trunk Creation using Genview EMS and RSM.Ensuring firmware up-gradation and other patch implementation for MGC/MGW/SBC. Solving issues related to International Roamers through Sponsored and Bilateral Roaming Solutions.Viable on Mobileum OM (Outreached Messaging for Welcome and Tariff SMS) and NTR steering for Network Traffic Redirection.Working experience on SIGOS tool for IR services (LU, Call, SMS & Data browsing) testing (Ad-hoc & Periodic).Analyzing traces related with GSM-MAP, CAMEL, GTP and Diameter to provide resolution for critical issues related to International Roaming (Voice, SMS and Data)Coordinating with different Teams as per RJIL VoLTE-IMS architecture Involving different nodes as Open TAS, CFX (P, I & S-CSCF), BGW, OCCP, MGCF, MRFC, MRFP, AGW, IBCF, BGCF, TrGW and RJIL LTE Core architecture Involving different nodes as eNodeB, MME, SGW, P-GW, PCRF, DRA/DEA etc to resolve issues related with ILD and IR. Show less

• 

  Colt Technology Services

  Aug 2019 - now

  Technical Lead

   24x7 Network Assurances by Maintaining Compliance with Network Stability and Availability. Working as Technical Lead for End to End resolution of any network issue in Colt’s European network of Voice and Internet services. Maintaining Sonus IMS, TDM switches (EWSD, Nortel DMS), DSLAMs (Siemens, Actelis, Alcatel Lucent). Managing a team of 7 NOC Engineers on a shift basis and high-volume workload within a deadline-driven environment. Responsible for handling second level troubleshooting issues, Customer complaints management, interacting with customers, understanding the requirements and providing the solutions to the customers. Handling customer destination complaints (ILD) and requests, Routing of customer destination numbers with the support of tools like TOM. Raise complaints and requests to International Carrier and co-ordinate with them. Handling Fraud, Spam and Disaster Recovery requests of customers. Managing customer inquiries, complaints and service requests for activation of international calls. Act as the SPOC for the customer until the request is activated. Proactively monitoring all the quality parameters such as ASR, ACD for both inbound traffic from the carrier and outbound traffic sent to the carrier. Show less