Voice engineer - sbc

Role Summary:
We are looking for a skilled Voice Engineer with hands-on expertise in SIP/Vo IP infrastructure, Oracle Session Border Controllers, and cloud contact centre platforms. You will be responsible for the day-to-day configuration, troubleshooting, and support of enterprise voice systems, ensuring high call quality and platform availability across SBC and CCaa S environments.
Key Responsibilities:
(A) Voice & SIP Engineering
Configure, maintain, and troubleshoot SIP trunks, RTP media paths, and Vo IP infrastructure in line with SIP RFC standards.
Diagnose and resolve call failures, one-way audio, DTMF issues, codec mismatches, and SIP timer problems using packet capture tools (Wireshark, Sniffer).
Perform SBC configuration, including dial plan setup, routing policies, and HA failover testing.
Monitor and troubleshoot call quality issues — jitter, latency, packet loss, and MOS score degradation.
Manage inbound and outbound call routing, DID mapping, and t...