Soumya Ranjan Kar

Telecom & VoIP Engineer | FreeSWITCH • Asterisk • SIP Routing • Linux Administration Telecom and VoIP Engineer with over 4 years of hands-on experience in designing, deploying, troubleshooting, and maintaining IP telephony solutions. Specialized in FreeSWITCH, Asterisk, FreePBX, SIP signaling, VoIP routing, carrier interconnections, and real-time communication platforms. Experienced in configuring and managing voice infrastructure, SIP trunks, dial plans, DTMF handling, call routing, SBC integrations, and performance optimization. Skilled in diagnosing complex call flow issues using SIP traces, RTP analysis, and telecom monitoring tools to ensure high availability and service reliability. Strong background in Linux server administration, PostgreSQL/MySQL databases, network troubleshooting, and telecom billing/routing platforms such as VOS3000. Adept at collaborating with carriers, vendors, and technical teams to deliver scalable and efficient communication solutions. Passionate about solving challenging VoIP problems, optimizing telecom networks, and continuously learning emerging technologies in unified communications and cloud telephony. Experience Summary VoIP Engineer | 2021 – Present Deployment and administration of FreeSWITCH, Asterisk, and FreePBX platforms. Configuration and troubleshooting of SIP trunks, gateways, and carrier interconnections. Design and maintenance of dial plans, IVR systems, call routing, and failover mechanisms. Monitoring and analysis of SIP, RTP, and DTMF signaling for voice quality and call completion. Management of VOS3000 routing and telecom billing operations. Linux server administration, performance tuning, and system maintenance. Database management using PostgreSQL and MySQL. Resolution of complex telecom issues related to call setup, media flow, codec negotiation, and network connectivity. Implementation of security best practices for VoIP infrastructure. Coordination with telecom carriers and customers to ensure service availability and SLA compliance.