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related service /call flows and associated protocols (SS7/Sigtran/Diameter/SIP)\nAbility to perform end-to-end network service troubleshooting.\nWorking knowledge of Network and Application Securities\nBasic knowledge of IP switching and routing protocols\nBasic proficiency in programming and scripting skills\nBasic knowledge of Linux and VM platform\nRequired to work during late night maintenance window period for release upgrade/software patch installation and project 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