Voice Operations Engineer – 24×7 Customer Support

About the Role

- We are seeking a skilled and customer-focused Voice Operations Engineer to join our 24×7 Voice Gateway Operations team.
- The role will support enterprise customers, troubleshoot real-time voice and telephony issues, monitor production environments, and ensure timely resolution of incidents across global regions.
- The ideal candidate will have robust knowledge of voice protocols, networking, Linux
- administration, monitoring tools, and excellent customer communication skills. The ability to remain calm under pressure, ask the right diagnostic questions, and clearly articulate technical findings is essential.

Key Responsibilities

- Provide 24×7 operational support for Voice Gateway, telephony, SIP, RTP, SBC, and
- contact-centre environments.
- Monitor voice infrastructure, call quality, service availability, traffic patterns, and system health.
- Troubleshoot issues related to call failures, call drops, one-way audio, no audio, DTMF, codec negotiation, SIP registration, routing, and media connectivity.
- Analyse SIP signalling and RTP media flows to identify the root cause of customer-
- impacting issues.
- Use tools such as Homer, Grafana, VoIP monitoring platforms, logs, traces, dashboards, and packet captures for troubleshooting.
- Investigate network, firewall, DNS, NAT, routing, port-access, and connectivity-related issues.
- Work with customers to collect call IDs, timestamps, SIP traces, source IPs, network
- details, recordings, and other relevant diagnostic information.
- Communicate clearly with customers during incidents, explain the problem statement, provide regular updates, and set appropriate expectations.
- Collaborate with Engineering, DevOps, QA, Product, carriers, SBC teams, and third-
- party vendors to drive issues to closure.
- Perform initial incident triage, impact assessment, escalation, and follow-up based on defined SLAs.
- Maintain accurate incident records, troubleshooting notes,



root-cause analysis, and
- customer communication history.
- Support production deployments, configuration changes, service restarts, feature
- enablement, and post-change validation.
- Identify recurring issues and recommend preventive actions to improve platform reliability and customer experience.
- Participate in shift rotations, weekend coverage, incident bridges, and major customer escalations.

Required Qualifications 3–5 years of experience in Voice Operations, NOC, Technical Support, Network Operations, Telecom Operations, or a related role.

Strong understanding of voice and telephony protocols, including:

- SIP
- RTP/RTCP
- SDP
- SIP REGISTER, INVITE, ACK, BYE, CANCEL, REFER, and 200 OK flows
- DTMF, codecs, NAT traversal, and media negotiation

Hands-on experience troubleshooting voice issues such as:

- Call setup failures
- Call drops and mid-call disconnects
- One-way or no audio
- Audio quality issues
- SIP registration failures
- DTMF failures
- Transfer and routing issues
- Carrier or SBC connectivity problems
- Good knowledge of networking fundamentals, including TCP/IP, UDP, DNS, NAT,
- routing, firewalls, ACLs, TLS, and port connectivity.
- Working knowledge of Linux administration, commands, services, logs, processes,
- networking, and basic performance troubleshooting.

Experience with monitoring and observability tools such as:

- Homer
- Grafana
- VoIP monitoring platforms
- Prometheus, Datadog, ELK/OpenSearch, or equivalent tools
- Ability to analyze logs, SIP traces, packet captures, and call-flow data.
- Strong problem-solving, debugging,



and incident-management skills.
- Excellent verbal and written communication skills.
- Ability to clearly explain technical issues, findings, impact, and next steps to customers and internal stakeholders.

Preferred Qualifications

- Experience working with SBCs, SIP carriers, cloud telephony, contact-center platforms, or CPaaS solutions.
- Familiarity with FreeSWITCH, Asterisk, RTP engines, AudioCodes, Twilio, or similar
- voice technologies.
- Experience using Wireshark, tcpdump, sngrep, SIPp, or similar troubleshooting tools.
- Exposure to AWS, GCP, or other cloud environments.
- Knowledge of call-quality metrics such as MOS, jitter, latency, packet loss, and packet-delay variation.
- Experience supporting global enterprise customers in a managed services or SaaS
- environment.
- ITIL certification or experience with structured incident and problem-management

processes.

Key Attributes

- Customer-focused and committed to timely issue resolution.
- Calm, composed, and effective during high-pressure incidents.
- Strong listener who can ask precise and relevant diagnostic questions.
- Able to convert complex technical findings into a clear customer-facing problem
- statement.
- Fast learner with the ability to adapt to new tools, technologies, and customer
- environments.
- Self-driven and accountable, with strong ownership of assigned incidents.
- Collaborative team player who works effectively across Engineering, DevOps, Product,and Customer Success.
- Flexible and comfortable working in a 24×7 rotational shift environment.
- Proactive in identifying recurring problems and improving operational processes.

Work Schedule

This role requires participation in a 24×7 rotational shift model, including night shifts,

weekends, and public holidays as part of the operations support schedule.

EDUCATION QUALIFICATION: Bachelor's degree in Computer Science, Information Technology, or a related field(MCA).

📌 Voice Operations Engineer – 24×7 Customer Support (Hyderabad)
🏢 Kore.ai
📍 Hyderabad