Role Summary:

We are looking for a skilled Voice Engineer with hands-on expertise in SIP/VoIP 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 CCaaS environments.

Key Responsibilities:

(A) Voice & SIP Engineering

• Configure, maintain, and troubleshoot SIP trunks, RTP media paths, and VoIP 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, laten...