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Kawsar Ahmed
@ahrasel1998
Expert in AWS, 3cx, Voip solution, Web Development, Wordpress
Norvège
Bengali, Hindi, Anglais
À propos de moi
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.
Compétences
Kawsar Ahmed
hors ligne •
Voir mes services
WordPress
I will build premium business or personal website in wordpress
Sauvegarde et migration
I will migrate or customize wordpress website
Portfolio
Expérience professionnelle
Senior System Administrator
VoIP Business • Temps plein
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 Avis
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asakib911
Bangladesh
nice work as it was beyond my expectations and I will be back for more
Jusqu’à 50 $US
Prix
2 jours
Durée
Réponse du freelance
Utile?
amenkhd
Client récurrent
États-Unis
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
Utile?
emily_jhns
Canada
It was fast and great service. Got $650 in profit from the trade. Impressive work and highly recommended.
Jusqu’à 50 $US
Prix
1 jour
Durée
Utile?
amenkhd
Client récurrent
États-Unis
Good work man. I will be your regular customer from now.
Jusqu’à 50 $US
Prix
2 jours
Durée
Utile?
shobi2024
États-Unis
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
Jusqu’à 50 $US
Prix
6 jours
Durée
Utile?
