Somoshree Ghosh

Experience

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  ZTE Telecom India Pvt Ltd

  Nov 2009 - Sept 2011

  Telecommunication Engineer

  NGN testing | Feature Testing / Regression testing | ZTE Telecom India Pvt. Ltd. | Jul'10 - Sep'11:-ZTE Soft switch system is designed for the Next Generation Network with layered and open architecture, which incorporates standard interfaces to communicate between layers. ZXSS10 SS1b, the core device in ZTE’s Soft switch architecture implements functions such as call control, media gateway access, routing, protocol processing, accounting, etc., The system supports integrated media gateways, terminal devices, and can interwork with the legacy PSTN/ISDN, PLMN and IN.Key Responsibilities: Prepare test cases for various SS7/ISUP scenarios possible with ITU-T document; Environment set-up for SIP–SIP, SIP-ISUP interworking with PSTN & MAP interworking with HLR; Testing of various Call forwarding scenarios [CFU, NDUB, UDUB, CFNRy, CFNRc]; Support for SIP-I; Creating Number-7 signaling links, Sigtran Links (m3ua), configuring SCCP-GTT towards HLR; Acquired knowledge of various NGN protocols; Regression for New Release/Patch Testing; IOT test for ZXSS10 SS1b with other vendors (MSC, HLR & PSTN); Root cause analysis; Show less

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  Ericsson

  Sept 2011 - Jan 2014

  Testing Engineer

  IMS testing | Sanity Testing / Regression testing | Ericsson India Global Services Pvt. Ltd. | Aug'12 – Dec’13:-RCSe system is designed for the IMS Network with layered and open architecture, which incorporates standard interfaces to communicate between core layers. Like S-CSCF, the application layer device in Ericsson IMS architecture implements functions such as IM-instant messaging, 1-1 message,1- N message, SF-Store & Forward Functionality-1-1 SF,1-n SF, File Transfer 1-1 ,FT 1-n,Content Storing ,Camel & Diameter charging.Key Responsibilities: Environment set-up for East Simulation tool to RCSe. Testing sanity & regression of all product series of RCSe(RMS). Testing of various chat scenario-such as IM-instant messaging 1-1 message,1-n message,SF-Store Forward Functionality-1-1 SF,1-n SF, File Transfer 1-1 ,FT 1-n,Content Storing ,Camel & Diameter online-offline charging. Support for UDP,TCP,TLS Creating Number-7 signaling links, SIGTRAN Links (m3ua), configuring CAMEL configuration for charging. Acquired knowledge of various IMS protocol. Regression for New Release/Patch Testing; Identifying defect & raising bugs using Bugzilla & tracking them to close the defects. Root cause analysis;======================================SIP-ISUP Interworking testing | Functional Testing / IOT Testing | Ericsson India Global Services Pvt. Ltd. | Sep'11 - Aug'12 :- Understanding the Requirements and Design specifications. Setting up the test bed and replicating the field deployment scenario in the Lab. Soft switch provisioning (e.g. Trunk group Creation, Gateway Creation, Creation of Routing Plans). Environment set-up for SIP–SIP, SIP-ISUP interworking with PSTN  Execution of Test cases using automation tool. Testing of various calls with the knowledge of SIP & VoIP protocol. Regression for New Release/Patch Testing; Identifying defect & raising bugs using Bugzilla & tracking them to close the defects. Root cause analysis; Show less

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  Mavenir Systems

  Jan 2014 - now

  Senior System Test Engineer

  IMS-RMS testing | System Testing | Mavenir Systems Pvt. Ltd. | Jan'14 – Till now :-RMS 8.3/9.3 Support CPM based feature delivery of RCS 5.1 features for page mode, large mode, session mode 1-1/1-N chat and 1-1/1-N file transfer and mStore archival. Also Support IMS to Legacy SMS/MMS interworking for all the above defined features for CPM mode and SIMPLE_IM mode.Key Responsibilities: RMS environment set-up in our Test bed. Testing Features, sanity & regression of all product series of RMS. Testing of various chat scenario-such as IM-instant messaging 1-1 message, 1-N message, SF-Store Forward Functionality-1-1 SF, 1-N SF, File Transfer 1-1 , FT 1-N,  Testing of Legacy Interworking towards SMSC/MMSC. Testing of HTTP FT and Upload & Download Resume. Acquired knowledge of various IMS protocol. Regression for New Release/Patch Testing; Identifying defect & raising bugs using Bugzilla & tracking them to close the defects. Root cause analysis; Show less