
Tajmul
Advanced SIP and VoIP troubleshooting
Compétences

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Expérience professionnelle
Technical Support Engineer – Telecom/VoIP
OBS • Temps plein
Nov 2018 - Apr 2025 • 6 yrs 5 mos
Monitored global A–Z VoIP traffic, route quality, and fraud-alert patterns in real time. Performed SIP tracing and call-flow analysis to resolve CLI failures, one-way/mute audio, call drops, and signaling issues. Optimized Mera/SwitchRay SBC for routing validation, SIP debugging, and service stability. Managed ILD/NLD routing, identified FAS issues, roaming call failures, TFN issues, and QoS degradations across global partners. Utilized tools such as U2000, NSP, EWSD, GenView, IntelliSight, and Wireshark for real-time troubleshooting. Maintained Grafana/Zabbix dashboards and prepared shift reports for global NOC operations. Delivered end-to-end RCA, incident documentation, and communicated with sales, routing, and engineering teams. Guided customers through SIP connectivity tests and configuration steps with clear, structured communication. Coordinated with vendors, interconnect partners, and internal teams to maintain SLA compliance and service uptime.
2 Avis
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rabeshsukrajh

Afrique du Sud
It was a pleasure receiving the transcript. The English was well-written and an accurate account of the video recording. Thank you so much!
personaentertai
Client récurrent

Arabie Saoudite
Tajmul was exceptional in everything . With a good experience, he worked very well and deliver on time. Looking forward to work with him again.
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