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Kawsar Ahmed
@ahrasel1998
Expert in AWS, 3cx, Voip solution, Web Development, Wordpress
Norwegen
Bengalisch, Hindi, Englisch
Über mich
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.
Kompetenzen
Kawsar Ahmed
offline •
Meine Dienstleistungen
WordPress
I will build premium business or personal website in wordpress
Backup & Migration
I will migrate or customize wordpress website
Portfolio
Arbeitserfahrung
Senior System Administrator
VoIP Business • Vollzeit
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 Bewertungen
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Zusammensetzung der Bewertung
- Kommunikation
- Qualität der Lieferung
- Preis-Leistungs-Verhältnis der Lieferung
1–5 von 479 Bewertungen
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asakib911
Bangladesch
nice work as it was beyond my expectations and I will be back for more
Bis zu 50 $
Preis
2 Tagen
Dauer
Antwort des Freelancers
Hilfreich?
amenkhd
Wiederkehrender Kunde
Vereinigte Staaten
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
Hilfreich?
emily_jhns
Kanada
It was fast and great service. Got $650 in profit from the trade. Impressive work and highly recommended.
Bis zu 50 $
Preis
1 Tag
Dauer
Hilfreich?
amenkhd
Wiederkehrender Kunde
Vereinigte Staaten
Good work man. I will be your regular customer from now.
Bis zu 50 $
Preis
2 Tagen
Dauer
Hilfreich?
shobi2024
Vereinigte Staaten
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
Bis zu 50 $
Preis
6 Tagen
Dauer
Hilfreich?
