NOC Engineer – Wholesale Voice & SIP Operations
Department: Voice NOC Operations • Location: Remote • Employment: Full-time
Monitor wholesale voice traffic, SIP trunks, call completion metrics (ASR, ACD, PDD), and troubleshoot VoIP signaling.
Key Responsibilities
- Surveil live voice traffic metrics: ASR, ACD, PDD, NER, and MOS quality scores.
- Investigate SIP signaling errors (4xx/5xx/6xx) using PCAP traces and Wireshark.
- Troubleshoot RTP media stream drops, codec mismatches, and SBC firewall blocks.
- Coordinate technical issues with international carrier NOCs and internal routing.
Candidate Requirements
- 3+ years in a VoIP/Voice NOC, SIP protocol troubleshooting, or SBC management.
- Solid command of SIP (RFC 3261), RTP/RTCP, SDP, Wireshark, and Linux.
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