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Fiverr Pro
Nederlands
$
USD
Kawsar Ahmed
@ahrasel1998
Expert in AWS, 3cx, Voip solution, Web Development, Wordpress
Noorwegen
Bengaals, Hindi, Engels
Over mij
I'm am an Expert system admin in AWS, Voip solution, 3cx, Freepbx, Portaone, Fusion etc. Contact me if you need any assistance from me. Hopefully, I will be able to help. I also have many years experience in web development in major cms.
Skills
Kawsar Ahmed
offline •
Bekijk mijn diensten
WordPress
I will build premium business or personal website in wordpress
Back-up en migratie
I will migrate or customize wordpress website
Portfolio
Werkervaring
Senior System Administrator
VoIP Business • Fulltime
Dec 2021 - Present • 4 yrs 6 mos
• Providing L2/L3 escalation for SIP call failures, one-way audio, codec mismatches, and NAT issues Wireshark SIP/RTP PCAP analysis to identify signaling and media- path problems. • Supporting STIR/SHAKEN call authentication, E911 routing validation, and FCC Form 499 traffic classification. • 10DLC (A2P SMS) campaign onboarding and compliance troubleshooting. • Deploying and supporting AWS-hosted VoIP solutions integrated with on-prem systems. • Supporting PBX and UC platforms including PortaOne, 3CX, Asterisk, FreePBX, Yeastar, and Grandstream. • Work closely with NOC teams, upstream carriers, SMS aggregators, and vendors as a primary escalation point, focusing on reliability and compliance.
479 Reviews
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| (7) |
Specificering van de beoordeling
- Communicatieniveau van de freelancer
- Kwaliteit van de levering
- Waarde van de levering
1-5 van 479 reviews
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asakib911
Bangladesh
nice work as it was beyond my expectations and I will be back for more
Tot maximaal US$ 50
Prijs
2 dagen
Looptijd
Reactie van de freelancer
Nuttig?
amenkhd
Terugkerende klant
Verenigde Staten
Finished the work fast and maintained cautions. Highly appreciated. I will definitely recommend him as i have been doing some other work with him as well and he never disappoints me, he is cooperative and provided me quality work always
Nuttig?
emily_jhns
Canada
It was fast and great service. Got $650 in profit from the trade. Impressive work and highly recommended.
Tot maximaal US$ 50
Prijs
1 dag
Looptijd
Nuttig?
amenkhd
Terugkerende klant
Verenigde Staten
Good work man. I will be your regular customer from now.
Tot maximaal US$ 50
Prijs
2 dagen
Looptijd
Nuttig?
shobi2024
Verenigde Staten
Perfect setups & executions, He caught up decent entries during volatility while risking nothing. I got some good gains and trades are still running. I will continue working with you. Highly recommended
Tot maximaal US$ 50
Prijs
6 dagen
Looptijd
Nuttig?
