Fozle R.

I am a VoIP & Voice AI Engineer with 6+ years of hands-on experience designing, deploying, integrating, troubleshooting, and maintaining production VoIP systems. I work across the complete voice infrastructure — from SIP signaling, RTP media and PBX routing to APIs, WebRTC and AI Voice Agents. 🔹 VoIP & PBX Engineering • Asterisk, FreePBX, Issabel and VICIdial • SIP trunks, DID and Caller ID configuration • Inbound and outbound call routing • IVR, queues, extensions and dialplans • Call center deployment and optimization • Linux-based VoIP server administration 🔹 VoIP Troubleshooting & Maintenance • One-way or no-audio problems • SIP registration failures • NAT, firewall, RTP and codec issues • Call drops and routing problems • SIP provider and trunk connectivity • Dialplan and PBX configuration issues • Production VoIP system maintenance 🔹 VoIP Application & API Integration • REST API and webhook integration • CRM, ERP and PBX integration • Asterisk ARI, AMI and application integration • Custom inbound and outbound call workflows • Python and PHP automation for VoIP systems • Twilio, Telnyx and other telephony API integrations • WebRTC and browser-based calling 🔹 AI Voice & Telephony I integrate AI Voice Agents with real telephony infrastructure and business APIs. I can help build solutions such as: • AI receptionists and customer-service agents • Appointment booking voice assistants • AI information and support hotlines • Automated outbound voice campaigns • API/tool calling from voice conversations • Human-agent transfer and fallback routing • AI-to-SIP/PSTN integration My professional work also includes VoIP/VAS application development, API integration, IP telephony infrastructure and production telecommunication systems. I do not only configure the application layer. I can troubleshoot the complete call path — SIP → PBX → RTP → API → WebRTC → AI Voice Agent. If you need help troubleshooting an existing VoIP system or building a new telephony or Voice AI solution, I can help you design, implement, integrate, troubleshoot and maintain it properly.