VoIP, SIP & FreeSWITCH

How to architect HIPAA/GDPR-compliant voice on FreeSWITCH: encryption, SIP security, and on-prem “sovereign AI” for regulated voice.

Connect FreeSWITCH to WebRTC the right way: mod_verto vs SIP-over-WebSocket, ICE/STUN/TURN, DTLS-SRTP, and where browsers meet the PSTN.

How to scale FreeSWITCH past a single box: SIP clustering, Kubernetes realities, load balancing with Kamailio, HA failover, and real failure modes.

Build a production voice AI agent on FreeSWITCH: ESL outbound mode, streaming STT→LLM→TTS, barge-in, the real latency budget, and scaling past a demo.

FreeSWITCH vs Asterisk vs Kamailio vs FreePBX: an honest comparison — architecture, scale, and the right base for voice AI.

What FreeSWITCH is, how it compares to Asterisk and Kamailio, and where real-time voice AI fits — from a team that runs production media infrastructure.