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rahman_voip

Rahman

@rahman_voip

VoIP System Administrator specializing in FreePBX Asterisk SIP and RDS

Ukraine
Ukrainian, Russian
About me
Built and maintained custom FreePBX/Asterisk VoIP infrastructure, including SIP trunk provisioning, DID supply and configuration, inbound/outbound routing, multi-country routes, extensions, queues and call recording. Developed custom modules and dialplan logic for dynamic DID rotation, caller ID management, trunk selection, failover and provider-based routing. Also handled server setup, NAT/firewall configuration, monitoring, troubleshooting and optimization for stable high-volume calling environments.... Read more

Skills

r
rahman_voip
Rahman
Offline • 

See my services

VoIP and Telephony
I will configure and troubleshoot freepbx asterisk sip voip
From$45 / projectMore details
Server Administration
I will set up windows server rds for remote employees
From$60 / projectMore details

Portfolio

Work experience

EPAM_Systems

VoIP & System Administrator

EPAM Systems • Full-time

May 2023 - Mar 2026 • 2 yrs 10 mos

Designed, deployed and maintained VoIP and remote office infrastructure for business teams and call centers. Worked with FreePBX, Asterisk, SIP trunks, DID routing, Windows Server, RDS, Linux VPS, WireGuard VPN, firewall/NAT configuration and system troubleshooting. Developed custom dialplans, DID rotation logic and VoIP routing solutions.