ENGINEERING DOMAIN
Communications & Voice
SIP, RTP, PBX systems, media paths, WebRTC and real-time audio.
SIP, RTP, PBX systems, media paths, WebRTC and real-time audio.
4 projects · 2 pieces of writing
Drachtio + FreeSWITCH SIP EdgeSIP edge and FreeSWITCH load-balancing layer with ESL health checks, REGISTER/INVITE proxying, round-robin routing, config reload and Prometheus health surfaces.
FIMI VoIP Protocol DemoSmall end-to-end protocol implementation using custom TCP signaling, SDP offer/answer, direct RTP media and RTCP receiver reports.
LOUP Parent Android AppKotlin/Compose guardian app with pairing, QR scanning, device state, approved contacts, call history and the LOUP lifecycle model.
VoIP & Real-Time Communications InfrastructureSIP/RTP infrastructure and debugging across endpoints, PBXs, routing, media, packet captures, NAT and service health.
RTP Timestamps Are Not Wall ClocksRTP timestamps are media clocks, not wall clocks. That distinction explains jitter calculations, playout timing, clock drift, and a surprising number of real-time audio bugs.
WebRTC Connectivity Is Not “STUN or TURN” — It Is an ICE Candidate Selection ProblemSTUN discovers reachability information and TURN provides a relay, but ICE is the algorithm that gathers candidates, checks candidate pairs, prioritizes working paths, and nominates the connection media actually uses.