Noida, Uttar Pradesh
Job Summary
L2/L3 support for Ribbon Session Border Controller (SBC) environments.\\r\\nTroubleshoot and resolve SIP trunk and interconnect issues: \\r\\nSIP signaling failures, registration issues, routing/policy issues, codec/DTMF mismatches, TLS/SRTP issues\\r\\nOne-way/no audio, RTP anchoring, NAT/firewall traversal, interop issues between platforms (Cisco/Zoom/Carrier)\\r\\nPerform configuration and operational tasks (as applicable): routing, transformation/normalization, security policies, certificates, upgrades/patch coordination, and change validation.\\r\\nAnalyze call traces/logs and provide SIP ladder/call flow analysis for escalations.\\r\\nSupport change implementation, testing, rollback planning, and documentation/runbooks.\\r\\n
Key Responsibilities
L2/L3 support for Ribbon Session Border Controller (SBC) environments.\\r\\nTroubleshoot and resolve SIP trunk and interconnect issues: \\r\\nSIP signaling failures, registration issues, routing/policy issues, codec/DTMF mismatches, TLS/SRTP issues\\r\\nOne-way/no audio, RTP anchoring, NAT/firewall traversal, interop issues between platforms (Cisco/Zoom/Carrier)\\r\\nPerform configuration and operational tasks (as applicable): routing, transformation/normalization, security policies, certificates, upgrades/patch coordination, and change validation.\\r\\nAnalyze call traces/logs and provide SIP ladder/call flow analysis for escalations.\\r\\nSupport change implementation, testing, rollback planning, and documentation/runbooks.\\r\\n
Skill Requirements
Strong hands-on experience with Ribbon SBC (configuration + troubleshooting).\\r\\nExcellent skills in SIP call flow analysis, packet/log trace analysis, and voice security basics (TLS/SRTP).\\r\\nExperience supporting carrier SIP trunks and working with multiple UC platforms.
Other Requirements
Experience: 7+ years overall (Strong UC experience)
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