Experience: Should have minimum 4 year hands-on experience on NSN R4 NEs. Experience on GSM, UMTS, NSN MSS, MGW, CDS, NSN (Siemens) STP . Operation and Maintenance of NSN R4 Core Network and STP. Understanding of HW Architecture of NSN R4 Core Network. Able to identify hardware and software faults and troubleshoot independently. Software upgrade & Patch loading in MSS/MGW/CDS and STP. GT Analysis, PLMN definition at MSS & HLR end, MSRN Routing. Creation of different Routing Analysis (B Number Analysis, Pre-Analysis, Attribute Analysis and End of Selection Analysis). Understanding of various KPI counter and Clear Codes. Able to use Osix and Traffica. Knowledge of DRA , VoLTE and its working Knowledge of Telecom Sig. Protocols i.e. SS7/ISUP / MAP /H.248 / MEGACO / BICC/ Diameter/SIGTRAN Basic knowledge of IP fundamentals i.e. IP sub-netting, VLAN, OSPF, RSTP, BGP.
Experience in VoLTE/ IMS architecture (TAS, CSCF, SBC, PCRF)