Naman Kaushik

VoIP & Telephony Engineer with hands-on experience supporting telecom infrastructure and troubleshooting SIP/RTP call flows across FreeSWITCH, Asterisk and VICIdial environments. Experienced in FreeSWITCH dialplan/configuration changes, SIP and call-flow troubleshooting, CDR and log analysis, monitoring, incident troubleshooting, WebRTC support, configuration and tuning. Strong working knowledge of Linux, Wireshark, sngrep, TCP/IP, SIP trunking, IVR, carrier routing and VoIP operations.

Network Operations Engineer at Wavecrest (2025-06 – Present)

• Supported and monitored international VoIP infrastructure and network availability across production telephony services.
• Performed FreeSWITCH SIP and call-flow troubleshooting, including investigation of registration, routing and call-establishment issues.
• Handled FreeSWITCH dialplan and telephony configuration changes to support required call flows and service behavior.
• Configured and supported WebRTC connectivity within the telephony environment and investigated related call-flow issues.
• Performed FreeSWITCH configuration and tuning to improve service stability and operational performance.
• Analysed FreeSWITCH/VoIP CDRs, server logs and SIP traces to identify call failures, routing issues and root causes.
• Used Wireshark and sngrep for SIP/RTP packet analysis and troubleshooting of call quality and connectivity problems.
• Investigated SIP response codes, routing failures and service incidents; coordinated with vendors to restore services.

VoIP Engineer Intern at Welco Infotech (2025-01 – 2025-05)

• Configured and managed VICIdial campaigns for inbound and outbound calling.
• Created and managed agent accounts, user groups and permissions in VICIdial.
• Configured SIP carriers and assigned them to campaigns for call routing.
• Designed and configured IVR menus and inbound call flows.
• Performed SIP trunk configuration and troubleshooting using Wireshark and sngrep.
• Investigated CDRs, routing failures, codec mismatches and NAT-related VoIP issues.
• Monitored Linux-based VoIP servers and assisted with Asterisk/VICIdial service troubleshooting.

Network Engineering Intern at AmpleTrails (2024-10 – 2024-12)

• Assisted with VLANs, ACLs, firewall configuration, Linux log monitoring and network segmentation.

B.E. / B.Tech. in Computer Science – Chandigarh University