Experience

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  Banglalink

  Nov 2006 - Jul 2016

  Operations specialist engineer

  1. Project work with vendors and team members regarding integration with other MSCs, HLRs, INs, BSCs, and other PLMNs.2. Part of an operation team which’s responsibility is to ensure at least 98% availability of the network and customer problem solving maintaining SLA at least 98%.3. Apart from traditional SS7/TDM techniques, I played a very important role for Banglalink NSS in first time launching their IP/TDM hybrid technology. This includes M2UA, M3UA, H.248, BICC based protocols and applications.4. Call routing and Number Analysis.5. Troubleshooting and fault management6. Traffic statistics measurement.7. Tone file creating and loading.8. Overall maintenance work for MSOFTX3000 and UMG8900 of Huawei MSC.9.Knowledge in HLS/HLR, Roaming configuration,connectivity,problem solving with K15 trace analyzer.10.Administration and Maintenance of MSC Databases i.e. BSC Database in MSC, Cell Database, SS7 MTP Database, SCCP+GT Database, Point Code Database,Trunk Database, ISDN-PRI Database.11. Administration and Maintenance of system and “Global Title Translation”(GTT) Database used as MSISDN, IMSI, Hybrid IMSI(MGT Conversion) etc.12.Integration of new network nodes such as HLR(HLS), SMSC, MCA, IN and different VAS nodes with MSC/VLR and STP (SG7000).13. Integration of STP (SG7000) with MSC using SIGTRAN protocol.14. Migration of all HLR(HLS), IN, VAS service of Banglalink network through STP (SG7000) with MSC.15. Knowledge of SS7 protocols-ISUP, MTP, SCCP, MAP, CAP and CAMEL. Configure databases for various national and international ISUP/MAP interconnections. Show less

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  Banglatel ltd. ( igw ), jibondhara solutions ltd. ( icx )

  Jul 2016 - now

  Core network sr. manager

  Prepare, update and maintain all planning and provisioning documentation.Meeting with Vendor/Operator for various services purpose.Coordinating with Billing, Transmission, Marketing, Datacom and NOC for smooth operation.Managed the whole work of Integration with more than 50+ International operator/ wholesales Carrier (VOIP) in our IGW platform. Coordinating with foreign carrier, IOS Operator, ICX (Interconnection Exchange) operator, IPTSP and ANS (Access Network) operator for successful routing.SIP, SIP-I, H.323, H.248, SIGTRAN, RTP, SCTP, M3UA, T.38, SS7 (ISUP) configuration in SBC, SS and MGW (If needed).Responding 2nd level escalation from Core team/Noc.Maintaining roster Duty and 24 hour remote support/on call to maintain standard KPI.Providing assistants to complete tier1 FC for successful call test.Analyze the statistical data (Signaling trace, Live CDR, ISUP error codes) for ICX and IGW to ensure all the KPI (such as CCR, ACD, ASR, BHCA, Erlang) results are within the satisfactory level and provide key solutions to improve the KPI results further.Hardware troubleshooting of all NGN equipment (If needed).Working with ZTE for ongoing project of SMS gateway (Jibondhara ICX).Working on new features at core element like reject G.711 codec for sip to sip call.Planning and Working for GP roaming service (Travel Talk).Working on the following NGN Equipment:ZXSS10SS1b (Soft switch)ZXMSG9000, MT256 (Media and Signaling Gateway), V3 rack (SMS Gateway)ZXSS10 B200 (Session Border Controller)EMS Server (NetNumen U31)NTP Server (OSC 5220)ATCA Server (ZXA1000) Show less