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Role: Sr.VOIP Support Engineer -Unified Communication Experience: 2-5 Years Location: Chennai Mandatory: VoIP Support, Network, Trouble Shooting, SIP, Protocol, Unified Communication. JD: Key Responsibilities: · Provide L2/L3 technical support for VoIP systems (PBX, SIP, RTP, SBCs, etc.). · Troubleshoot and resolve complex VoIP and network-related issues, including call quality, call routing, and latency problems. · Perform SIP trace analysis and packet captures to investigate and resolve call failures. · Configure, Maintain, Optimize and monitor VoIP infrastructure, including Asterisk, FreePBX, Kamailio/ OpenSIPs or similar platforms. · Administer and configure Session Border Controllers (SBCs), IP phones, gateways, Soft Switch and softphones. · Implementation and Support AI-driven voice solutions (speech-to-text, voice bots, IVR automation, call analytics, NLP). · Monitor system performance, identify bottlenecks, and ensure high availability of VoIP services. · Coordinate with telecom vendors and ISPs for provisioning, number porting, and issue resolution. · Maintain documentation of systems, configurations, and standard operating procedures. · Provide mentorship to junior engineers and serve as the point of escalation for complex issues. Perform Root Cause Analysis [RCA] and document solutions. Required Skills and Qualifications: · 5+ years of hands-on experience in VoIP systems support and engineering. · Strong understanding of SIP, RTP, SDP, and related protocols. · Experience with packet analysis tools (Wireshark, tcpdump) and SIP tracing. · Proficiency with Asterisk, FreeSWITCH, Kamailio or similar platforms. · Expertise in Unified Communication, SIP, RTP, WebRTC, IVR design, and call flow troubleshooting. · Proficiency in Linux administration, networking, and cloud platforms (AWS, GCP, Azure). Preferred Qualifications: · Hands-on experience in Unified Communication such as provisioning services and configuring call flows as per customer requirement and optimize customer engagement workflows. · Knowledge of VoIP security best practices (TLS, SRTP, firewalls, VPN, fraud prevention). · Scripting knowledge (Bash, Python) for automation and diagnostics. · Exposure to AI-powered speech analytics and voice AI skills (speech recognition, text-to- speech, voice bots, conversational AI). Education · Bachelor's degree in Computer Science, Electronics, Telecommunications, or related technical field.
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