NG911 Telephony NENA SME

• At least 12 years of experience in a relevant technical or business application, product, platform, or methodology. \n

• Experience with NG911 or critical public safety voice infrastructure, including call routing, SIP signaling, and interoperability. \n

• Ability to work with call-flow documentation, signaling scripts, interoperability matrices, and voice testing. \n

• Experience coordinating technical issue resolution across vendors, carriers, and engineering teams. \n, * Knowledge of public safety environments. \n

• Experience with IP voice management, auditing, and monitoring. \n

• Familiarity with logging and recording technologies for legacy and IP PBX systems. \n

• Strong communication, business writing, and stakeholder engagement skills. \n

• Develop and maintain call-flow diagrams, signaling validation scripts, and interoperability matrices across PSAC I, PSAC II, and vendor sites. \n

• Design and validate call-routing workflows in line with NENA STA-010, STA-012, and STA-019. \n

• Configure and analyze SIP messages, SDP negotiation, and trunk performance across SBCs and gateways. \n

• Support testing, troubleshooting, redundancy testing, performance benchmarking, and cutover events for critical voice infrastructure. \n

• Validate ECRF/LVF call-routing functions, ESRP/BCF/CHS mappings, carrier connectivity, QoS, DSCP tagging, and failover routing. \n

• Analyze SIP traces, CDRs, and packet captures to validate system behavior under load and failover. \n

• Translate business needs into detailed requirements and user stories, plan elicitation activities, and engage public safety and agency stakeholders. \n

• Collaborate with the Lead Test Engineer, MSCI, Motorola, NICE, Cisco, telecom carriers, and other project partners. \n

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