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Tajmul
@taj_mul
Advanced SIP and VoIP troubleshooting
India
English, Tamil, Urdu, Hindi
About me
VoIP & SIP Support Engineer with 6+ years of experience in telecom and provider-side environments.
I specialize in SIP call flow troubleshooting, PCAP (Wireshark) analysis, SIP trunk integrations, and SBC/PBX issue resolution. I have worked with carriers, SBCs, and PBX platforms to diagnose call failures, audio issues, and registration problems.
My focus is on accurate root cause analysis, clear explanations, and practical fix recommendations for VoIP teams, MSPs, and businesses.
Skills
Tajmul
Offline •
Average response time: 5 hours
See my services
Transcription
I will transcribe audio or video to accurate, clean text
Data Typing
I will retype handwritten, scanned pdfs, or images into editable word or excel
Work experience
Technical Support Engineer – Telecom/VoIP
OBS • Full-time
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 Reviews
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Rating Breakdown
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1-2 out of 2 Reviews
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rabeshsukrajh
South Africa
It was a pleasure receiving the transcript. The English was well-written and an accurate account of the video recording. Thank you so much!
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personaentertai
Repeat Client
Saudi Arabia
Tajmul was exceptional in everything . With a good experience, he worked very well and deliver on time. Looking forward to work with him again.
Seller's Response
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