mediasoup as a Self-Hosted SFU: Cutting WebRTC Cost in Half for 2026 Voice AI
mediasoup is the Node + C++ SFU that powers half the open-source voice stack. Here is the cost math against managed clouds and the production tuning that matters.
11 min
Archive page 876 of 1230
AI Voice Agent Insights & Guides
Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
11,066 articlesArchive page 876
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How to Build a Next.js 14 Voice Demo with OpenAI Realtime + WebRTC
Mint an ephemeral OpenAI key from a Next.js Route Handler, connect via WebRTC from the browser, and ship a working voice demo to Vercel in one afternoon.
10 min read
TCPA Compliance for AI Voice Agents: Consent, Opt-Out, and Fines in 2026
Where TCPA $500-$1,500 per-call exposure actually comes from, how AI voice changes the consent calculus, and the operational controls that keep you under the line in 2026.
11 min read
AI No-Show Recovery and Reminders: HIPAA Plus TCPA Without Tripping Either
The TCPA healthcare exemption sounds permissive until the FCC's 2024 AI-voice ruling collides with HIPAA minimum necessary. Here is the 2026 reminder workflow that actually clears both bars.
11 min read
Redis Streams for AI Conversation Buffering: XADD, XREADGROUP, and PEL Recovery
Redis Streams give you 50 microsecond enqueue, consumer groups, and PEL-based at-least-once delivery — the right primitive for buffering live AI conversation events while downstream agents catch up.
10 min read
Coqui XTTS-v2: Clone a Voice in 6s, 17 Languages
Build a working voice agent with Coqui XTTS-v2: clone any voice from 6 seconds of audio, speak 17 languages, run it locally with no API keys. Full setup.
12 min read
Build a Voice Agent on Vertex AI Agent Builder with Gemini Live (2026)
Stand up a Gemini-powered voice agent with Vertex AI Agent Builder (now Gemini Enterprise Agent Platform). Phone gateway, ADK code-first agent, Cloud Run runtime — under 200 lines.
12 min read
Baseten Serverless GPU for Voice Agents: Sub-300ms TTFB on Blackwell (2026)
Baseten's $5B-valuation Chains SDK plus Truss runtime delivers the lowest measured TTS time-to-first-byte in 2026. Build a voice agent with Kokoro, Orpheus, and Whisper on B200s.
11 min read
WebRTC + AI Captioning for Live Church and Faith Services in 2026
Live faith services in 2026 ship multilingual AI captions over WebRTC to congregations spanning 100+ languages. Here is the production stack with on-prem ASR, accessible overlays, and donation flows.
10 min
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