Hisham Ahmad Jan

– Context: AI-powered voice automation platform for real-time customer interactions. – Redesigned SIP signaling and media flows, reducing call setup failures and improving audio consistency. – Helped migrate media routing from LiveKit to FreeSWITCH, lowering latency and improving stability for high-volume usage. – Collaborated across AI, backend, and infra teams to streamline debugging and accelerate delivery. – Implemented CI + automated integration testing to reduce regressions and stabilize releases.

– Upgraded Asterisk systems (hardware, OS, DAHDI, SIP stack), improving uptime and reducing maintenance overhead. – Revived and productionized a discontinued telecom product through architectural modernization. – Built AI-powered IVR and agent-assist workflows (STT, LLM, TTS), reducing manual workload. – Developed monitoring dashboards to reduce troubleshooting time for signaling and QoS issues.

– Automated PBX workflows and monitoring using Python/Bash/Perl AGI scripts. – Integrated Microsoft Teams with PBX to enable hybrid communication and reduce telephony costs. – Applied LLM/NLP techniques to analyze customer communication data for business insights. – Improved SIP routing, trunk stability, and failover handling.

– Managed Asterisk & Kamailio clusters, improving signaling throughput and call reliability. – Developed automated callback workflows for Zong customers. – Diagnosed nationwide SIP/RTP issues and supported telecom customers via Zong-Cap portal.