Deepak Rawat

Experience

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  Wipro Infotech Ltd

  Aug 2011 - Jul 2015

  Telecom Engineer

  Primary Skills : Dialogic SBC, Veraz Soft-switch, Veraz Media-gatewaysClient : Idea Cellular LtdProject : Idea ILD NOC Managing VERAZ Soft-Switch and Media gateways (I-Gate Edge and Pro) using EMS and XMS tools. Configurations and troubleshooting on DIALOGIC BN4000 SBC (Session Border Controller) Configuration of new Trunk Groups (TGs) in EMS server of VERAZ Soft-Switch. Handling integration of new nodes with Control switch. Soft switch familiarity and understanding of architecture and protocols. Responsible for New Media gateway installation. Responsible for commissioning of new POI. In-depth Knowledge of configuration and call tracing on E1 and SIP circuits. Product research and vendor interaction. Ensuring completion of requisite tasks as per customer expectations and within agreed SLA’s  Works with customers, our internal field technicians and engineers and other NOC staff to solve technical problems regarding ECN and voice services. Coordinating with International Carrier and Operators to resolve the Voice Quality, echo on the Route, connectivity of the calls and the quality of service (QoS) towards the destination numbers where the issues arises and to optimize the available bandwidth, control jitter, the ping report to minimize latency and visual trace route to find the fault in particular hops towards SIP proxy server.  Responsible for resolution of Critical issues on NGN switch side. And closing the trouble-tickets within the provided SLA. Show less

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  Orange Business Services

  Oct 2015 - Oct 2016

  Voice Network Engineer

  • Managing Business cutomers in different regions such as APAC, EMEA, Europe-I, Europe-II• Monitoring CDN networks (Content Delivery Network) - Akamai Cache servers stores Video chunks and broadcast to servers.• Monitoring QOS paramters such as (Time to reach, Latency and speed).• Performing health checks on CDN servers and in case of any TAC support escalating to CDN TAC.• Simulating tests with the help of Probes, Robotic tests showing results for failure or Bad QOS.• Managing war rooms with CDN TAC, Orange Spain ISP and customers during Live Footbol matches.• Monitoring Voice networks too with the help of Probes.• Troubleshooting issues such as voice quality, echo problem, one-way audio or no-audio issue, call failure, call drop issue, IP phone registration issues. Show less

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  Tech Mahindra

  Oct 2016 - Oct 2017

  Senior Network Engineer

  (Primary Skill : SIP)Client : Google Project : Google Voice Operations• Handling Google Products : Google Voice , Project Fi, Call Metrics (Ads telephony), Hangouts, Google Probers• Troubleshooting call complaints received from Googlers such as unable to make outbound or receive inbound calls, echo, choppy audio, no RBT / caller tune, call drop, DTMF issue, CLI issues.• Extracting SIP call logs through the help of Google Internal tools (Google Admin) and exporting them to wire-shark for troubleshooting and in-depth analysis• Management of Voice Test Configuration environment, with ability to measure voice call quality, audio encoding issues like Voicemail, DTMF pass through in future.• In case of major traffic failure, looking into the Performance Graphs (ASR, QPS, Active call legs, Failed call counts) and troubleshooting further. Show less

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  DXC Technology

  Oct 2017 - Apr 2019

  Technical Consultant

  • Full Hands on experience upon AVAYA SBCE 6.x and 7.x• Installation of Avaya SBC software from USB or DVD on Dell R210 & Dell R330, HP DL360 G9, Portwell CAD 0208 & 0230 servers.• Configuration of EMS and SBCE on a single server / multiple server, depending upon the deployment method.• Excellent knowledge of VOIP and SIP (Session Initiation Protocol)• Full hands on experience in call tracing (Wireshark and TSHARK/TCPDUMP)• Troubleshooting issues such as voice quality, echo problem, one-way audio or no-audio issue, call failure, call drop issue, transcoding problems, IP phone registration issues (Remote Worker).• Responsible for Avaya SBCE upgradation and BIOS upgradation, • Hands on experience on end to end SIP trunk configuration, creating Signaling Manipulation scripts on Avaya SBC.• Investigating Avaya SBC debug logs and Identifying Software bug, working further with AVAYA Advance Engineering / product house team to fix the bug.• Configuring SNMP v1,v2&v3 settings on SBC, creating SNMP trap profiles for SNMP v1,v2&v3 users. In case of device not alarming, diagnosing the issue by studying snmp traces in wireshark.• Working on postgresql-9.4 database installed on Avaya SBC. After studying SBC debug logs, Applying a temporary fix by updating/ deleting the rows (tuples) in tables using ‘psql’ terminal client.• Responsible for installation of TLS certificates and SIP licenses (WebLM) on Avaya SBC• Good Knowledge of Red Hat Linux(Secondary Skill : Oracle ACME SBC 4500)• Troubleshooting issues related to signaling and media using the ACLI : by enabling and disabling sip and media logs.• Extracting the required logs from SBC to local system using WinSCP, and then studying the logs (Offline logs analysis).• Displaying list of logfiles and viewing particular logfile using ACLI.• Configuring snmp traps an troubleshooting on snmp traces.• Dynamically Changing Log Level of processes and checking the current log-level of the tasks using ACLI Show less

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  Capgemini

  Apr 2019 - now

  Technical Solutions Leader

  Configuration, Maintenance and Troubleshooting Avaya SBCE.Configuration includes - Creating SIP trunk with ASM, Service Provider, IPO. Generating CSRs on SBC and creating TLS certificates on SMGR, installing TLS certificates on SBC, replacing TLS certificates. Blacklisting Fraud IP / Fraud numbers, Configuring Subscriber/End-point flows for Remote worker and SIP telephony.Maintenance includes - Major/minor upgrades, Installing / removing Hotfix / cumulative patches. Taking SBC snapshots and storing locally and on remote backup servers.Troubleshooting includes - Handling call signaling and media issues, Capturing tsharks/tcpdumps and studying SIP and RTP packets for analyses.Installation :: Installing new SBC server when the existing server goes faulty. Deploying and configuring since scratch. Restoring configuration through Snapshot files. Show less

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  Capgemini Engineering

  Dec 2022 - now

  Technical Operations Manager